SEA - CUN

C$ 224 Find Cheap Flights from Seattle to Cancún

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Cancún departing on 24/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Cancún

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Cancún, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Cancún, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
C$ 555
Overall average: C$ 862
Delta
Fri 6/2Tue 17/2
SEA - CUN • 1 stop
Cheapest direct flights
C$ 666
Typical prices: C$ 706-C$ 1,133
Delta
Wed 31/12Tue 6/1
SEA - CUN • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Alaska Airlines' Wine Flies Free program is a perk.
Expect quick immigration at Cancun due to renovations.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Delta
Cheapest • from C$ 555 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 18% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Cancún!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seattle to Cancún (SEA-CUN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Cancún that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Cancún

Fri, 6 Feb - Tue, 17 Feb
Delta Logo
5:00 a.m. - 4:05 p.m.
SEA
-
CUN
8h 05m1 stop
Delta Logo
7:10 p.m. - 10:17 a.m.
CUN
-
SEA
18h 07m1 stop
C$ 555Delta
Wed, 7 Jan - Wed, 14 Jan
Multiple Airlines Logo
5:50 p.m. - 10:54 a.m.
SEA
-
CUN
14h 04m1 stop
Multiple Airlines Logo
9:50 p.m. - 7:51 p.m.
CUN
-
SEA
25h 01m2 stops
C$ 570Multiple Airlines
Mon, 11 May - Fri, 15 May
JetBlue Logo
11:59 p.m. - 2:35 p.m.
SEA
-
CUN
12h 36m1 stop
JetBlue Logo
10:50 a.m. - 8:53 p.m.
CUN
-
SEA
12h 03m1 stop
C$ 572JetBlue
Wed, 31 Dec - Thu, 15 Jan
Alaska Airlines Logo
8:06 a.m. - 5:05 p.m.
SEA
-
CUN
5h 59mdirect
Alaska Airlines Logo
6:15 p.m. - 2:43 p.m.
CUN
-
SEA
23h 28m2 stops
C$ 590Alaska Airlines
Thu, 1 Jan - Thu, 15 Jan
Alaska Airlines Logo
8:06 a.m. - 5:05 p.m.
SEA
-
CUN
5h 59mdirect
Alaska Airlines Logo
6:15 p.m. - 6:43 p.m.
CUN
-
SEA
27h 28m2 stops
C$ 598Alaska Airlines
Wed, 31 Dec - Wed, 14 Jan
Alaska Airlines Logo
8:06 a.m. - 5:05 p.m.
SEA
-
CUN
5h 59mdirect
Alaska Airlines Logo
6:15 p.m. - 10:01 a.m.
CUN
-
SEA
18h 46m1 stop
C$ 599Alaska Airlines
Fri, 6 Feb - Tue, 17 Feb
Multiple Airlines Logo
6:02 p.m. - 10:00 a.m.
SEA
-
CUN
12h 58m1 stop
Multiple Airlines Logo
6:10 a.m. - 8:51 a.m.
CUN
-
SEA
29h 41m2 stops
C$ 601Multiple Airlines
Wed, 31 Dec - Thu, 15 Jan
Alaska Airlines Logo
5:20 a.m. - 6:50 a.m.
SEA
-
CUN
22h 30m2 stops
Alaska Airlines Logo
6:15 p.m. - 6:43 p.m.
CUN
-
SEA
27h 28m2 stops
C$ 605Alaska Airlines
Wed, 7 Jan - Wed, 14 Jan
Multiple Airlines Logo
5:50 p.m. - 10:54 a.m.
SEA
-
CUN
14h 04m1 stop
Multiple Airlines Logo
11:05 a.m. - 8:45 p.m.
CUN
-
SEA
12h 40m1 stop
C$ 606Multiple Airlines
Tue, 12 May - Tue, 19 May
JetBlue Logo
11:59 p.m. - 6:00 p.m.
SEA
-
CUN
16h 01m1 stop
JetBlue Logo
10:50 a.m. - 8:53 p.m.
CUN
-
SEA
12h 03m1 stop
C$ 607JetBlue
Booking Insights

KAYAK's insights & trends for Seattle to Cancún flights

Get data-powered insights and trends into flights from Seattle to Cancún to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to Cancún?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Cancún, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Cancún is September, where tickets cost C$ 645 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is C$ 1,036 and C$ 899 respectively.

Can I save money by flying with a layover from Seattle to Cancún?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 836 on average.

How far in advance should I book a flight from Seattle to Cancún?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Cancún, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Cancún, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to Cancún

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Aeromexico

AM Plus offers priority check-in, boarding, and luggage with discounted lounge access.


Aeromexico's Wi-Fi is fast enough for streaming and offers free text messaging.

Alaska Airlines

Alaska Airlines offers a 20-minute baggage guarantee for timely luggage delivery.


Alaska Airlines' Wine Flies Free program allows free wine check-in from select US airports.

Delta

Delta offers free Wi-Fi for SkyMiles members on domestic flights.


Delta's Sky Priority check-in serves premium cabin and elite status passengers.

Airports
SEA

Use the SEA Spot Saver for expedited security screening. Book online or via the flySEA app for a smoother departure.

CUN

Expect quick immigration at CUN due to recent renovations. Automated passport checks reduce wait times to 5–15 minutes.

Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Aeromexico

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and SEA

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Brandon Schultz

Brandon Schultz

Expert on CUN

Brandon Schultz

Brandon Schultz

Brandon travels every week and makes friends with stray cats wherever he goes. Dogs, too... he once brought one home to the US from the Amalfi Coast. He’s written 6 books, visited 6 continents (still waiting on Antarctica), and would eat ice cream 6 times a day if he could. He lives in Brooklyn, New York, with his partner and three cats.

Read more

Good to know

Low seasonSeptember
Cheapest flightC$ 224
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (15% more expensive on average)
Flight from Seattle to Cancun

When to book flights from Seattle to Cancún

Are your dates flexible? Find out the best times to travel from Seattle to Cancún based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Cancun

  • What is the cheapest flight from Seattle to Cancún?

    In the last 3 days, the lowest price for a flight from Seattle to Cancún was C$ 224 for a one-way ticket and C$ 555 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Cancun?

    Alaska Airlines, Aeromexico, and Delta offer inflight Wi-Fi service on the Seattle to Cancun flight route.

  • Which aircraft models fly most regularly from Seattle to Cancun?

    The Airbus A321neo is the aircraft model that flies most regularly on the Seattle to Cancun flight route.

  • Which airline alliances offer flights from Seattle to Cancun?

    oneworld, and SkyTeam are the airline alliances operating flights between Seattle and Cancun, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Seattle to Cancun?

    There are direct flights from Seattle to Cancun on a daily basis.

  • Which is the best airline for flights from Seattle to Cancún, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Seattle to Cancún are Alaska Airlines and Delta. With an average price for the route of C$ 757 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of C$ 698 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Seattle to Cancun?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Cancun.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Cancun?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cancun from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Cancun?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cancun with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Cancun?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cancun from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Cancún

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 792 or less round-trip.

Prefer to fly direct from Seattle to Cancun?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl to Cancun.
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Cancun Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Cancun

Monday

Alaska Airlines,Delta

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more nonstop flights

Direct returns

Cancun to Seattle/Tacoma Intl

Monday

Alaska Airlines,Delta

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more nonstop flights

Reviews of the top 3 airlines flying from Seattle to Cancún

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Cancún. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Cancún? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11429 reviews
8.1Boarding
7.0Entertainment
7.1Food
7.8Comfort
8.5Crew
Airline reviews

The plane was old so the seats were very worn out. The seats were hard, uncomfortable, and caused me actual pain. The lights were too bright. The flight itself was fine.

6.0 GoodAnonymous, Dec 2025
SEA - PHX
Read more Alaska Airlines reviews

The plane was old so the seats were very worn out. The seats were hard, uncomfortable, and caused me actual pain. The lights were too bright. The flight itself was fine.

1. Denial of Basic Needs (SEA): Upon arrival in Seattle, the wheelchair attendant refused my urgent request to use the restroom, insisting on scanning documents first. She eventually took me to a restroom but then abandoned me and my autistic son at an unstaffed, deserted gate for over four hours. When I called the accommodation line for help, I was told to "get someone's attention," which was impossible. My son, traumatized by the prospect of me yelling for help, was forced to wander the terminal to find assistance. 2. Revocation of Accommodations & Threats: At the gate, an agent stated I had no accommodations on file, despite my previous leg having them. When I showed the app (where my bulkhead seat was erased and replaced with Row 14), he denied the evidence. When I attempted to advocate for my immobilized leg, he threatened to "yank me from the flight" if I said one more word. He coerced me into agreeing that I was "asking for accommodations for the first time" before he would allow assistance, effectively forcing me to falsify the situation under duress. I complied only out of fear of being stranded in a strange city. 3. On-Board Negligence and Injury: Because my bulkhead seat was revoked, I was forced into Row 14. With my leg immobilized and unable to bend, it extended into the aisle. During boarding and the flight: 16 different passengers tripped over my injured leg. 6 rolled luggage bags were pulled over my injured leg. The Flight Attendant (FA) was one of the people who tripped and drove luggage over me. I reported the issue to the FA after 10 trips and 3 luggage impacts. He ignored me. He only addressed me later to ask me to move my immobilized leg for beverage service. I informed him again: "16 people have tripped, 6 luggage runovers, I cannot bend it." He provided no medical aid and no incident report. 4. Resolution and Trauma: Eventually, a different employee noticed my distress and my original paper boarding pass showing the correct bulkhead assignment. He asked me to move up. I broke down in tears, terrified that moving would cause the gate agent to remove me from the plane as threatened. We were eventually moved to the bulkhead, but the damage was done. My autistic son was traumatized by watching his mother be trampled and threatened. 5. Post-Flight: I called to report these injuries, but was disconnected after a 45-minute hold. I require a formal record of this injury and these violations.

Larger seats with a bit more room would be good! Thanks for all your hard work. I think we are all feeling a bit down these days economically and your positive attitudes, both from SJC to Seattle and from Seattle to Bozeman makes more of a difference than you can see! Thank you and Merry Christmas! I hope all your financial needs are met and that very good things come your way.

We flew economy, it was what I expected. The seats are too upright for me

I purchased a 1st class ticket and unfortunately the main flight attendant was not the best and seemed more interested in her phone than the passengers at times. Then the plane didn’t get restocked and the only snacks for this flight were pretzels. However I would like to say that the rest of the flight crew and ground crew at the airport we’re great, especially the people that wheeled me around the airport some and then the one getting me to the plane and the automated wheelchair that wheeled me through the airport.

Typical domestic flight. No entertainment. You have to use your own devices and provided entertainment didn’t work. Pretzels and water of flight over 4 hours is unacceptable. Meals should be provided on long flights. But it’s about the money and not customer service. You should just issue the bag of pretzels at the gate and water bottle in seat and just do away with flight attendants because they do nothing on domestic flights

Very good. Easy check in, attentive flight attendant, and on time departure/landing.

Again Alaskan and Hawaiian need to consolidate check-in, allow seat reservations on both flights. I wound up in last row because I couldn’t reserve better seat.

I would like if it had happened already. I'm still waiting for it.

Pretzels are always a disappointment. Cheezits, Sun Chips, trail mix, anything else would be nice.

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

Unfortunately I had an awful boarding experience. Our first flight with Aeromexico was fine and landed on time however it couldn’t find a gate and we were late which made us lose our connecting flight with Aeromexico. The staff handled it horribly when we explained our situation and would not led us board when we missed the boarding time by a couple minutes. The staff were extremely rude and did not attempt to even help us. Because of this incident, my husband and I missed a full day of work which negatively impacted our salary which we need. Please compensate us for the work that we missed.

It was OK. The flight is pretty long for the airlines to only offer a simple sandwich on business class. The entertainment is similar to that on other Skyteam members. Ultimately the airline lost my bag and didn’t deliver it to me until the next day after a lengthy lost baggage report.

Good, the flight from Miami to Mexico City was better than Mexico City to Miami

Aeroméxico cancelled my ticket without advice AND It make a last minute mess in my intinerary, no solving my situation, bad advice and bad customer service

The ground staff were not as friendly and nice to the passengers as the air crew. Flight attendants, cockpit crew were great and very nice to everyone on board.

My flight was delayed, then I got transferred to a new flight that was also delayed- which wasn’t Aeromexico’s fault, it was because of weather conditions. Most of the crew was very nice and patient, except for one or two flight attendants who were rude. The entertainment wasn’t on, so all the screens were off.

My wife's entertainment system did not work. Payed for flight upgrade but did not receive advertised "free WiFi".

Annoying that we had to go to departures and get boarding passes. Should allow us to be booked all the way through, this is the only airline i have this problem with in MEX. Late boarding and take off

Lousy No wheelchair. As normal at Atlanta Cheap airline Cheap aero plane. - Neither entertainment nor food on a 5 hour saga

The airplane was an old airplane, seats were very uncomfortable and very little space, they changed my seat and that was no option to get back into my seat even when I was traveling a senior who required assistance.

Everything you need to know for your flight from Seattle to Cancún

Information on your arrival and departure airports