YHZ - SEA

C$ 235 Find Cheap Flights from Halifax to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Halifax to Seattle departing on 1/9. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Halifax to Seattle, 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 Halifax to Seattle, as well as popular online travel agencies
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Cheap Flight Deals from Halifax to Seattle (YHZ-SEA)

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Halifax to Seattle.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
United Airlines Logo
2:50 p.m. - 10:26 p.m.YHZ-SEA
11h 36m1 stop
United Airlines Logo
11:30 a.m. - 1:49 a.m.SEA-YHZ
10h 19m1 stop
C$ 428United Airlines
Find Deal
mié., 7 may. - lun., 12 may.
United Airlines Logo
5:20 a.m. - 6:30 p.m.YHZ-SEA
17h 10m3 stops
United Airlines Logo
7:33 p.m. - 12:34 p.m.SEA-YHZ
13h 01m2 stops
C$ 438United Airlines
Find Deal
mié., 7 may. - lun., 12 may.
WestJet Logo
8:30 a.m. - 6:38 p.m.YHZ-SEA
14h 08m2 stops
WestJet Logo
7:05 a.m. - 7:10 p.m.SEA-YHZ
8h 05m1 stop
C$ 442WestJet
Find Deal
mar., 12 ago. - vie., 22 ago.
WestJet Logo
8:05 p.m. - 12:58 p.m.YHZ-SEA
20h 53m1 stop
WestJet Logo
7:05 a.m. - 7:10 p.m.SEA-YHZ
8h 05m1 stop
C$ 446WestJet
Find Deal
mar., 12 ago. - vie., 22 ago.
 Logo
5:20 a.m. - 10:51 a.m.YHZ-SEA
9h 31m1 stop
 Logo
11:40 a.m. - 9:39 a.m.SEA-YHZ
17h 59m1 stop
C$ 494
Find Deal
mar., 10 jun. - mié., 11 jun.
Air Canada Logo
5:20 a.m. - 10:45 a.m.YHZ-SEA
9h 25m1 stop
Air Canada Logo
5:30 a.m. - 9:10 p.m.SEA-YHZ
11h 40m2 stops
C$ 529Air Canada
Find Deal
mié., 14 may. - lun., 19 may.
Air Canada Logo
5:15 a.m. - 10:51 a.m.YHZ-SEA
9h 36m1 stop
Air Canada Logo
12:10 p.m. - 1:49 a.m.SEA-YHZ
9h 39m1 stop
C$ 532Air Canada
Find Deal
sáb., 28 jun. - vie., 4 jul.
 Logo
5:15 a.m. - 10:51 a.m.YHZ-SEA
9h 36m1 stop
 Logo
12:10 p.m. - 1:49 a.m.SEA-YHZ
9h 39m1 stop
C$ 541
Find Deal
sáb., 28 jun. - vie., 4 jul.
American Airlines Logo
11:50 a.m. - 10:26 p.m.YHZ-SEA
14h 36m2 stops
American Airlines Logo
12:05 a.m. - 2:20 p.m.SEA-YHZ
10h 15m2 stops
C$ 1,162American Airlines
Find Deal
sáb., 28 jun. - jue., 3 jul.
American Airlines Logo
11:50 a.m. - 10:26 p.m.YHZ-SEA
14h 36m2 stops
American Airlines Logo
12:05 a.m. - 2:20 p.m.SEA-YHZ
10h 15m2 stops
C$ 1,177American Airlines
Find Deal
sáb., 28 jun. - jue., 3 jul.

KAYAK's insights & trends for Halifax to Seattle flights

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

What’s the cheapest day of the week to fly from Halifax to Seattle?

The average price of all round-trip flights from Halifax to Seattle clicked on KAYAK for each day over the last 12 months.
For Halifax to Seattle, Sunday is the cheapest day to fly on average and Friday is the most expensive. Flying from Seattle back to Halifax, the best deals are generally found on Tuesday, with Friday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Halifax to Seattle, 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 Halifax to Seattle is October, where tickets cost C$ 544 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is C$ 777 and C$ 767 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Halifax to Seattle, 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 Halifax to Seattle, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low season

April

High season

July

Cheapest flight

C$ 235
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly and prices are also 10% lower on average.
Flight from Halifax to Seattle

When to book flights from Halifax to Seattle

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

  • What is the cheapest flight from Halifax to Seattle?

    In the last 3 days, the lowest price for a flight from Halifax to Seattle was C$ 170 for a one-way ticket and C$ 309 for a round-trip.

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

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Halifax to Seattle?

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

  • Which is the best airline for flights from Halifax to Seattle, United Airlines or WestJet?

    The two airlines most popular with KAYAK users for flights from Halifax to Seattle are United Airlines and WestJet. With an average price for the route of C$ 676 and an overall rating of 7.4, United Airlines is the most popular choice. WestJet is also a great choice for the route, with an average price of C$ 621 and an overall rating of 7.2.

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

    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 Halifax to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Halifax 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 Halifax to Seattle?

    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 Seattle with an airline and back to Halifax with another airline.

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

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

See more FAQs

Top 3 airlines serving from Halifax to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Halifax to Seattle. 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 Halifax to Seattle? 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.
7.4
United AirlinesOverall score based on 8685 reviews
6.6Food
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
Airline reviews

leg space better than expected. two washrooms for one plane isn't enough.

8.0 ExcellentJuan Luis, Apr 2025EWR - SEA
Read more United Airlines reviews

leg space better than expected. two washrooms for one plane isn't enough.

Plane temperature was comfortable (not to hot) when boarding and waiting for takeoff.

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

It was my first time with United Airlines and I would say it was very good experience and best of all the flights were on time. Will definitely fly with United Airlines next time.

headphone jack didnt work for the first flight and not much variety

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence.

Plane 3 hours late. Missed connection. No help from gate staff. App horrible. Lost connection repeatedly. No service desk. Finally got help from young girl driving cart.

Not as good as expected Air Can needs to improve totally rated on internet as worst

Internet on both flights was sketchy. Thus in flight entertainment was non- existent on MN - Balrimote leg.

It took 30 minutes to check in with the Westjet rep. They didn’t have enough seats and she needed to make a call… I am always “randomly” selected to be checked at security. Their “randomly “ selection system may need some updating. They treat people like criminals. It is not appropriate behavior.

Will never book through you again. Very disappointed in the notices and action taken or provided when planes are rescheduled, enough to cause missed connections

Lost my luggage. Filed a report and there is no response. Received a phone call from another airline that said they had the bag and they did not know what to do with it

Very good over all , would have been nice to have entertainment on the flight

Absolutely the worst airline I have ever taken. They lost my baggage and told me my bag tags had been cancelled. When my bags arrived days later I had to pick them up at 3:15 am. My return flight was delayed another 6 hours and they broke my bag. Westjet does nothing to try and make it a better customer experience and all the customers services representatives I spoke with were useless and incompetent. Never flying westjet again.

it's all good nothing you can do make better 😌

Very old planes. Seats were not comfortable. Air was not on during the flight leading to incredibly stuffy conditions.

It was so bad experience they wanted just charged passengers for any reason.

Delta was great. West Jet was not. I booked my flight in Sept (well over two months ago), but was told there were 2 reservations and NO tickets for me, my husband and 16mo daughter. We were unable to go ahold of West Jet over the phone and the kiosk was unhelpful so we had to buy completely new tickets in order to get home that day. I’ve called West Jet twice since and sat on the phone for over an hour without speaking to any representatives.

It was just ok, after a weather delay and had to take 3 planes in one day I asked for another cookie and she said no only one per passenger, found that a bit pity after spending my whole day in airports and planes

Boarding was challenging as we had to use the stairs from the tarmac. Stairs are okay but a roller bag makes it challenging.

All good, but plane outdated, seat uncomfortable, food that we had was 4 out of 10. Crew was great!

Lack of crew staffs to handle emergency medical situations that ending no meal served and only hot water and bag of pretzels served for business class!

Very Poor Even with the disruptions our flight was delayed twice then eventually cancelled. Subsequently we to this date have lost 3 days of our vacation. The situation still remains unresolved

The app and the information given at the counter did not match.

The app and the information given at the counter did not match

My one complaint was that while we boarded using the standard enclosed gangway, when we arrived at SEATAC, the ground crew were slow to hook up the stairs. After reaching the tarmac we had to walk up a long ramp all outside in 35° weather. We just came from Bali and did not have warm weather clothes. This was in addition to having to collect our bags in Vancouver, take them through security again and then having to show our passports 4 more times all within the Air Canada section.

3 hours late departure with no explanation. $160 luggage fee (two passengers) for less than 1 hour in the air!

The seats for first class were so close together it was hard to get by one another to go to the bathroom. If I knew that this was first class I would have just paid and flown economy

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

Information on your arrival and departure airports

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