YHZ - SEA

$184 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, Sep 3 - Wed, Sep 3
United Airlines Logo
7:00 am - 3:52 pmYHZ-SEA
12h 52m2 stops
United Airlines Logo
7:34 pm - 2:03 pmSEA-YHZ
14h 29m2 stops
$323United Airlines
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Wed, Sep 3 - Wed, Sep 3
United Airlines Logo
7:00 am - 3:52 pmYHZ-SEA
12h 52m2 stops
United Airlines Logo
11:15 pm - 2:03 pmSEA-YHZ
10h 48m1 stop
$328United Airlines
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Mon, Aug 11 - Wed, Sep 3
Air Canada Logo
5:05 am - 11:00 amYHZ-SEA
9h 55m1 stop
Air Canada Logo
7:15 am - 7:18 pmSEA-YHZ
8h 03m1 stop
$345Air Canada
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Mon, Aug 11 - Wed, Sep 3
American Airlines Logo
4:28 pm - 9:19 amYHZ-SEA
20h 51m2 stops
American Airlines Logo
11:05 pm - 1:52 pmSEA-YHZ
10h 47m1 stop
$358American Airlines
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Thu, Jul 17 - Thu, Jul 24
Air Canada Logo
5:15 am - 11:00 amYHZ-SEA
9h 45m1 stop
Air Canada Logo
12:05 pm - 1:49 amSEA-YHZ
9h 44m1 stop
$360Air Canada
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Thu, Jul 17 - Thu, Jul 24
WestJet Logo
8:05 pm - 8:28 pmYHZ-SEA
28h 23m1 stop
WestJet Logo
1:50 pm - 6:01 amSEA-YHZ
12h 11m2 stops
$367WestJet
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Mon, Aug 11 - Mon, Sep 1
American Airlines Logo
4:28 pm - 9:19 amYHZ-SEA
20h 51m2 stops
American Airlines Logo
12:45 am - 2:44 pmSEA-YHZ
9h 59m2 stops
$374American Airlines
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Mon, Aug 11 - Tue, Sep 2
WestJet Logo
6:30 pm - 12:58 pmYHZ-SEA
22h 28m2 stops
WestJet Logo
2:05 pm - 5:59 amSEA-YHZ
11h 54m2 stops
$377WestJet
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Thu, Jul 17 - Thu, Jul 24
Logo
11:45 am - 6:38 pmYHZ-SEA
34h 53m3 stops
Logo
1:50 pm - 6:01 amSEA-YHZ
12h 11m2 stops
$473
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Sun, Aug 3 - Sat, Aug 9
Logo
11:00 pm - 8:28 pmYHZ-SEA
25h 28m3 stops
Logo
7:05 am - 4:10 pmSEA-YHZ
29h 05m2 stops
$502
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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.

If you are looking for a flight deal from Halifax to Seattle, look for departures on Fridays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Seattle, Monday is the cheapest day to fly and Sunday is 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 $379 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $561 and $554 respectively.

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Good to know

Low seasonApril
High seasonSeptember
Cheapest flight$184
Best time to beat the crowds with an average 12% drop in price.
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 $184 for a one-way ticket and $323 for a round-trip.

  • Do I need a passport to fly between Halifax and Seattle?

    Yes

  • Which airports will I be using when flying from Halifax to Seattle?

    When flying out of Halifax you will be using Halifax Intl. You will be landing at Seattle, also known as Seattle/Tacoma Intl.

  • 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.

  • 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. Booking your flights between Halifax and SEA can sometimes prove cheaper using this method.

  • 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 airline flying 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
6.6Food
7.7Boarding
7.3Comfort
7.0Entertainment
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.

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

Information on your arrival and departure airports

Halifax (YHZ)
Seattle (SEA)

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