SEA - SAT

Find cheap flights from Seattle to San Antonio

1 adult

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

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

Save 27% 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.

Cheap Flight Deals from Seattle to San Antonio (SEA-SAT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to San Antonio 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.

Recent round-trip flight deals from Seattle to San Antonio

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to San Antonio.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Condor Logo
SEA-SAT
4h 09mdirect
Condor Logo
SAT-SEA
4h 33mdirect
Condor
Find Deal
Qatar Airways Logo
SEA-SAT
4h 09mdirect
Qatar Airways Logo
SAT-SEA
4h 20mdirect
Qatar Airways
Find Deal
Alaska Airlines Logo
SEA-SAT
3h 58mdirect
Alaska Airlines Logo
SAT-SEA
4h 20mdirect
Alaska Airlines
Find Deal
Hawaiian Airlines Logo
SEA-SAT
3h 58mdirect
Hawaiian Airlines Logo
SAT-SEA
4h 20mdirect
Hawaiian Airlines
Find Deal
Air Tahiti Nui Logo
SEA-SAT
3h 58mdirect
Air Tahiti Nui Logo
SAT-SEA
4h 20mdirect
Air Tahiti Nui
Find Deal

Expert advice for your flight from Seattle to San Antonio

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are specific to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
SEA

Use the SEA Spot Saver for expedited security screening without a paid program. Book online or via the flySEA app.

Read more about SEAby Harriet Baskas
SAT

Take the #5 VIA bus from SAT to downtown San Antonio. It's inexpensive and takes about 30 minutes.

Read more about SATby Brandon Schultz
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on SAT

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
Harriet Baskas

Harriet Baskas

Expert on 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

KAYAK's insights & trends for Seattle to San Antonio flights

Get data-powered insights and trends into flights from Seattle to San Antonio 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 San Antonio?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to San Antonio, 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 San Antonio is January, where tickets cost C$ 354 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is C$ 672 and C$ 520 respectively.

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

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 San Antonio, 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 San Antonio, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low season

August

High season

December
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (38% more expensive on average)

When to book flights from Seattle to San Antonio

Are your dates flexible? Find out the best times to travel from Seattle to San Antonio 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 San Antonio

  • Can I find long-term parking at Seattle Tacoma International Airport?

    SEA Airport has over 12,000 parking spaces for anyone looking to leave their car at the airport. These parking spaces are easily accessible from International Blvd and have bridges and pathways leading to the airport terminal. There is an option to reserve parking days before your flight, and if you’re a frequent flyer, you can qualify for discounts and other perks.

  • How do I make my flight from Seattle to San Antonio more sustainable?

    While flying is not the most sustainable way to travel, it is very difficult to avoid. Therefore, the onus is on you to make your flight more sustainable and do your best for the environment. You can start by booking a direct flight instead of connecting flights since connecting flights are often longer and result in more carbon emissions. Another way to make your trip more sustainable is by flying economy. It has a higher capacity and therefore carries more people reducing the number of overall flights.

  • How do I get wheelchair assistance at San Antonio International Airport?

    San Antonio International Airport offers free wheelchair services to anyone that may require one. To get these services, you will need to inform your airline or travel agent at least 48h before your flight is set to depart. That way, they will mark your record with a note informing the airport officials that you require special assistance. Upon seeing the information, the airport officials will make the necessary arrangements to ensure that you get a wheelchair as soon as your plane lands.

  • What is the fastest way to Seattle Tacoma International Airport from Downtown Seattle?

    Sea-Tac Airport is about 13 miles away from downtown Seattle. While there is a light rail that goes directly from Downtown to the airport, road transport provides the quickest way. Assuming normal traffic and weather conditions, it should take about 15min to get to the airport using the I-5S. A cab or driving to the airport would be most appropriate.

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

    Alaska Airlines, Hawaiian Airlines, American Airlines, and Delta offer inflight Wi-Fi service on the Seattle to San Antonio flight route.

  • Which aircraft models fly most regularly from Seattle to San Antonio?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Seattle to San Antonio flight route.

  • Which airline alliances offer flights from Seattle to San Antonio?

    oneworld is the only airline alliance operating flights between Seattle and San Antonio.

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

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

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

    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 San Antonio.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio 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 San Antonio?

    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 San Antonio 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 San Antonio?

    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 San Antonio from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 553 or less round-trip.
  • When flying out of Seattle Tacoma International Airport (SEA), ensure that you arrive at least 3h before your flight departs. This should give you enough time to navigate the long lines at the airport without risking missing your flight.
  • Delta Air Lines has a hub in Seattle Tacoma International Airport. For that reason, you should consider booking your flight with them since they always have more flight options than any other airline.
  • To enjoy the lounge facilities at SEA Airport, consider booking with Alaska Airlines, Delta, or United Airlines. They each have a lounge at the airport where you can hang out while waiting to board your flight.
  • San Antonio International Airport (SAT) has pet relief areas inside and outside the airport. The outdoor ones are the most conveniently located for arriving passengers and can be found at Terminal A on the 0 level of the hourly parking garage and Terminal B towards the baggage claim exit.
  • If you’re looking for specific in-flight services such as Wi-Fi, confirm that they are available during booking. Different flights tend to offer different services to passengers even when serviced by the same airline.
See more tips

Prefer to fly direct from Seattle to San Antonio?

Find which airlines fly direct from Seattle/Tacoma Intl Airport to San Antonio Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to San Antonio

Monday

Air Tahiti Nui,Alaska Airlines,Condor, +3 more

Air Tahiti Nui,Alaska Airlines, +4 more

Tuesday

Air Tahiti Nui,Alaska Airlines,Condor, +2 more

Air Tahiti Nui,Alaska Airlines, +3 more

Wednesday

Air Tahiti Nui,Alaska Airlines,Condor, +3 more

Air Tahiti Nui,Alaska Airlines, +4 more

Thursday

Air Tahiti Nui,Alaska Airlines,Condor, +3 more

Air Tahiti Nui,Alaska Airlines, +4 more

Friday

Air Tahiti Nui,Alaska Airlines,Condor, +2 more

Air Tahiti Nui,Alaska Airlines, +3 more

Saturday

Air Tahiti Nui,Alaska Airlines,Condor, +3 more

Air Tahiti Nui,Alaska Airlines, +4 more

Sunday

Air Tahiti Nui,Alaska Airlines,Condor, +3 more

Air Tahiti Nui,Alaska Airlines, +4 more

See more nonstop flights

Direct returns

San Antonio to Seattle/Tacoma Intl

Monday

Air Tahiti Nui,Alaska Airlines,Hawaiian Airlines, +2 more

Air Tahiti Nui,Alaska Airlines, +3 more

Tuesday

Air Tahiti Nui,Alaska Airlines,Hawaiian Airlines, +1 more

Air Tahiti Nui,Alaska Airlines, +2 more

Wednesday

Air Tahiti Nui,Alaska Airlines,Hawaiian Airlines, +2 more

Air Tahiti Nui,Alaska Airlines, +3 more

Thursday

Air Tahiti Nui,Alaska Airlines,Hawaiian Airlines, +2 more

Air Tahiti Nui,Alaska Airlines, +3 more

Friday

Air Tahiti Nui,Alaska Airlines,Hawaiian Airlines, +2 more

Air Tahiti Nui,Alaska Airlines, +3 more

Saturday

Air Tahiti Nui,Alaska Airlines,Hawaiian Airlines, +2 more

Air Tahiti Nui,Alaska Airlines, +3 more

Sunday

Air Tahiti Nui,Alaska Airlines,Hawaiian Airlines, +2 more

Air Tahiti Nui,Alaska Airlines, +3 more

See more nonstop flights
See more nonstop flights

Top airline flying from Seattle to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Seattle to San Antonio. 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 San Antonio? 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 9911 reviews
7.1Entertainment
7.1Food
8.2Boarding
7.9Comfort
8.5Crew
Airline reviews

An uneventful flight is a good experience although one of the pilots gauges wasn’t working right so we had a half hour delay—no one can foresee that.

10.0 ExcellentAldo, Apr 2025SEA - TPA
Read more Alaska Airlines reviews

An uneventful flight is a good experience although one of the pilots gauges wasn’t working right so we had a half hour delay—no one can foresee that.

Plane was delayed and got me in past bedtime. But more importantly, my tsa precheck number wasn’t on my ticket so had to deal with the general line. Oh well, guess the delay helped that situation.

It was as good as flying can be, which is still very uncomfortable. Clean new aircraft, great crew.

Everything was good. The flight attendants were great. I was disappointed that there wasn’t any screens on the back of the seats to watch movies, tv, etc. I only had my phone to watch movies on.

Flight delayed due to engine issue. For 3+ hours still not on flight

Could have had more of a beverage selection than water and apple juice.

They only had one flight to my destination for the entire day. Six hour layover. Coming from their sister airline we didn't have any boarding grouping on our boarding tickets. Had to ask where we were within the grouping.

Flight was over an hour late, and we got notified every 15 minutes, beginning right at boarding, that it would only be 15 more minutes until we finally left about 75 minutes late. Of course, no compensation was offered.

Just in first class they offer blanquets, for main cabin there was no blanquets even if I would buy them

The flight was delayed and then it was very short. The crew was nice. The seats weren't as comfortable on this particular craft.

Everything you need to know for your flight from Seattle to San Antonio

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.