YHZ - SEA

C$ 252 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 9/9. 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
1 adult, Economy

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

 
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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Flights Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Halifax to Seattle

Wed, 3 Sep - Wed, 3 Sep
United Airlines Logo
7:00 a.m. - 3:52 p.m.YHZ-SEA
12h 52m2 stops
United Airlines Logo
7:34 p.m. - 2:03 p.m.SEA-YHZ
14h 29m2 stops
C$ 442United Airlines
Find Deal
Wed, 3 Sep - Wed, 3 Sep
United Airlines Logo
7:00 a.m. - 3:52 p.m.YHZ-SEA
12h 52m2 stops
United Airlines Logo
11:15 p.m. - 2:03 p.m.SEA-YHZ
10h 48m1 stop
C$ 448United Airlines
Find Deal
Mon, 11 Aug - Wed, 3 Sep
Air Canada Logo
5:05 a.m. - 11:00 a.m.YHZ-SEA
9h 55m1 stop
Air Canada Logo
7:15 a.m. - 7:18 p.m.SEA-YHZ
8h 03m1 stop
C$ 472Air Canada
Find Deal
Mon, 11 Aug - Wed, 3 Sep
American Airlines Logo
4:28 p.m. - 9:19 a.m.YHZ-SEA
20h 51m2 stops
American Airlines Logo
11:05 p.m. - 1:52 p.m.SEA-YHZ
10h 47m1 stop
C$ 489American Airlines
Find Deal
Thu, 17 Jul - Thu, 24 Jul
Air Canada Logo
5:15 a.m. - 11:00 a.m.YHZ-SEA
9h 45m1 stop
Air Canada Logo
12:05 p.m. - 1:49 a.m.SEA-YHZ
9h 44m1 stop
C$ 492Air Canada
Find Deal
Thu, 17 Jul - Thu, 24 Jul
WestJet Logo
8:05 p.m. - 8:28 p.m.YHZ-SEA
28h 23m1 stop
WestJet Logo
1:50 p.m. - 6:01 a.m.SEA-YHZ
12h 11m2 stops
C$ 502WestJet
Find Deal
Mon, 11 Aug - Mon, 1 Sep
American Airlines Logo
4:28 p.m. - 9:19 a.m.YHZ-SEA
20h 51m2 stops
American Airlines Logo
12:45 a.m. - 2:44 p.m.SEA-YHZ
9h 59m2 stops
C$ 511American Airlines
Find Deal
Mon, 11 Aug - Tue, 2 Sep
WestJet Logo
6:30 p.m. - 12:58 p.m.YHZ-SEA
22h 28m2 stops
WestJet Logo
2:05 p.m. - 5:59 a.m.SEA-YHZ
11h 54m2 stops
C$ 515WestJet
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Thu, 17 Jul - Thu, 24 Jul
 Logo
11:45 a.m. - 6:38 p.m.YHZ-SEA
34h 53m3 stops
 Logo
1:50 p.m. - 6:01 a.m.SEA-YHZ
12h 11m2 stops
C$ 647
Find Deal
Sun, 3 Aug - Sat, 9 Aug
 Logo
11:00 p.m. - 8:28 p.m.YHZ-SEA
25h 28m3 stops
 Logo
7:05 a.m. - 4:10 p.m.SEA-YHZ
29h 05m2 stops
C$ 686
Find Deal
Useful Info

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$ 518 (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$ 767 and C$ 757 respectively.


Good to know

Low seasonApril
High seasonSeptember
Cheapest flightC$ 252
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly and prices are also 13% 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$ 184 for a one-way ticket and C$ 323 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?

    Star Alliance, SkyTeam, and oneworld 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$ 660 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$ 619 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.

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 8790 reviews
7.7Boarding
7.3Comfort
7.0Entertainment
6.6Food
8.1Crew
Airline reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

2.0 MediocreAnonymous, Jun 2025LAX - SEA
Read more United Airlines reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

Very nice and clean plane. Transit time between flights was tight though

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

So far so good but food and entertainment are not available for this flight

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.

Late departure, so I missed connection in Detroit. But Delta gave me a great hotel & breakfast. Just sorry I could not get anything from my checked baggage.

Crew was friendly. Lost our luggage and told us it’d be in later in the evening of the day we returned. It was not. Still after 5 days have not received it.

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.

Better than usual. We’ve flown air Canada for years at least once or twice a year and used it to bring our Canadian American son back and forth from USA and Canada and Europe and we have had MANY bad experiences with late flights, missed connections, boarding issues, for almost 10 years. Just lots of bad experiences. This one wasn’t bad at all. It’s simply what we expected. Even though the first flight this time was 45 min late in leaving due to a maintenance issue, that didn’t mess us up. But all else was fine so we were pleased.

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!

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