SEA - YHZ

$169 Find Cheap Flights from Seattle to Halifax

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 Halifax departing on 10/15. 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 Halifax

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

Cheap Flights from Seattle to Halifax (SEA-YHZ)

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

Fri, Oct 17 - Sun, Oct 19
WestJet Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
WestJet Logo
8:00 am - 12:59 pmYHZ-SEA
8h 59m1 stop
$376WestJet
Find Deal
Wed, Oct 15 - Sun, Oct 19
WestJet Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
WestJet Logo
8:00 am - 12:59 pmYHZ-SEA
8h 59m1 stop
$377WestJet
Find Deal
Wed, Oct 15 - Sun, Oct 19
WestJet Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
WestJet Logo
8:30 am - 12:59 pmYHZ-SEA
32h 29m2 stops
$400WestJet
Find Deal
Sat, Sep 27 - Mon, Oct 6
 Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
 Logo
11:00 pm - 12:59 pmYHZ-SEA
17h 59m2 stops
Wed, Dec 3 - Tue, Dec 16
 Logo
7:55 am - 9:05 pmSEA-YHZ
9h 10m1 stop
 Logo
3:05 pm - 2:20 pmYHZ-SEA
27h 15m2 stops
Mon, Sep 22 - Mon, Sep 29
American Airlines Logo
11:05 pm - 1:52 pmSEA-YHZ
10h 47m1 stop
American Airlines Logo
4:06 pm - 9:21 amYHZ-SEA
21h 15m2 stops
$490American Airlines
Find Deal
Mon, Sep 22 - Mon, Sep 29
Air Canada Logo
7:15 pm - 8:26 amSEA-YHZ
9h 11m1 stop
Air Canada Logo
5:25 am - 10:59 amYHZ-SEA
9h 34m1 stop
$494Air Canada
Find Deal
Mon, Sep 22 - Mon, Sep 29
American Airlines Logo
11:38 pm - 3:16 pmSEA-YHZ
11h 38m2 stops
American Airlines Logo
4:06 pm - 9:21 amYHZ-SEA
21h 15m2 stops
$495American Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 15
Air Canada Logo
7:15 am - 7:18 pmSEA-YHZ
8h 03m1 stop
Air Canada Logo
7:30 pm - 9:21 amYHZ-SEA
17h 51m1 stop
$507Air Canada
Find Deal
Tue, Oct 7 - Tue, Oct 14
United Airlines Logo
10:35 pm - 5:09 pmSEA-YHZ
14h 34m2 stops
United Airlines Logo
8:35 pm - 6:49 pmYHZ-SEA
26h 14m2 stops
$529United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Halifax flights

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

How much is a round-trip flight from Seattle to Halifax?

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

The average price of all round-trip flights from Seattle to Halifax clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Halifax on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Seattle to Halifax. For your return ticket, we recommend flying on a Friday and avoiding Thursdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Halifax, 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 Halifax is April, where tickets cost $260 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $789 and $764 respectively.

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

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 Halifax, 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 Halifax, you should book around 4 weeks before departure, which saves you about 50% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$169
Best time to beat the crowds but there is an average 38% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from Seattle to Halifax

When to book flights from Seattle to Halifax

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

  • What is the cheapest flight from Seattle to Halifax?

    In the last 3 days, the lowest price for a flight from Seattle to Halifax was $169 for a one-way ticket and $376 for a round-trip.

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

    Yes

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

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

  • Which airline alliances offer flights from Seattle to Halifax?

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to Halifax are United Airlines and WestJet. With an average price for the route of $527 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 $514 and an overall rating of 7.2.

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

    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 Halifax.

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

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

    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 Halifax with an airline and back to Seattle with another airline. Booking your flights between Seattle and YHZ 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 Seattle to Halifax?

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

Reviews of the top 3 airlines serving from Seattle to Halifax

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Halifax. 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 Halifax? 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 8943 reviews
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

10.0 ExcellentAnonymous, Aug 2025EWR - YYZ
Read more United Airlines reviews

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

We had a layover from YVR to Denver. We bought 4 bottles of Absolut Vodka at the YVR Duty Free for $116.20, after going through security and American Customs Pre Clearance at YVR, Vancouver. When we landed in Denver, United put us behind the American Customs as well as TSA again for some reason. We were forced to go through American Customs and TSA again. TSA confiscated our rightfully owned Duty Free Absolut Vodka bottles. Because United incorrectly forced our flight behind American border and TSA again, we missed the connecting flight. After United put us on a later flight, we eventually arrived in Chicago very late, with hardly any sleep. I am looking for compensation from United for our incorrectly confiscated Absolut Vodka bottles worth $116.20, as well as compensation for incorrectly putting us behind American Customs and TSA again, causing us to miss our connecting flight, making us arrive extremely late in Chicago.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Delay and keep changing gates. I have to run around from B to C then to E.

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Our flight was delayed almost 3.5 hours (some of the issue seemed to be weather-related, yes) but NOTHING was offered as an conciliatory gesture for this delay. No food offering or any additional drink offering. There is no entertainment is available on any screen behind the seats. The airlines are so quick to penalize customers for slightest requests for comfort- seat changes, complicated baggage allowances, seating zones which are utterly dehumanizing (ZONE 9? after Zone 4- why? This is so clearly meant to be a message to those that do not have 'loyalty' to this airline to make a distinguishing line in the sand. There is such a lack of humanity in the way people are corralled in and spoken to. So, I don't think airlines should be all that surprised when those some dehumanizing corporate treatment is returned to them when asked. The flight on the way into Calgary was scheduled to arrived at 9:25 and we arrived at 12:45 AM. It is not okay. I would think TWICE and possibly once more before booking with them again. Their overhead bins are small and limited so they bully you into either paying for a $90 checked bag or gate check a lot of people's bags. Often on their website there is no carry-on bag allowance. Beware!

Friendly helpful crew but that did not make up for cramped, uncomfortable seating. Anyone over 5.5 feet and 150lbs is going to feel crammed into the tiny space they have allotted for seating unless you are a special rewards customer, then you get the properly human size seats. With the outrageous price of flying these days, even in economy, the very least they can do is provide you with a comfortable seating experience. Especially since if there is any kind of delay on the ground you're likely to be stuck there even longer than your scheduled flight time.

They cancelled and moved my flight with no email or text or any other notice. I discovered this only when I attempted to check in for my flight. Actual flying experience was above average.

They were on time and everything went as expected. The only thing that could be better was they didn't wait for us to get through customs to pick up our luggage off the carousel. An employee picked it up and was shoving it together with others onto a cart. Later we found one of our luggage was slightly bent.

Delayed boarding. Delayed taking off. Delayed landing. Missed our connecting flight. Our seats on this plane were not assigned until last minute, splitting up our family with kids. I sat in the last row next to the bathroom with so many people rubbing up against me to get to the bathroom the entire flight.

Another delayed flight. Then got bumped to a later connecting flight, over two hours later! Plane was hot and uncomfortable.

Asked to cancel flight 6 days in advance of flight back to St. Louis, MO. Would not allow. No credit either.

Crew was nice especially by North American standards. Bad good. No entertainment screens. Terrible WiFi

Check in through Kayak is IMPOSSIBLE due to the fact that Kayak & the airline of your choosing have different confirmation and reservation codes. You have to call the airline to find your actual information. My brand new KOBO Libra Colour 2 was destroyed somewhere in the security line. When I put it in the bin it was fine, and when I received it back, the screen was destroyed. Awesome. The boarding was a nightmare as people rushed to the gates prior the their boarding zones. I was seated between a father daughter duo who when I suggested I move to either side so they aren’t separated they said “no, we chose this on purpose.” They proceeded to talk over me, pass things over me, use my foot space, and lean on both sides. When we landed, the father was one of the first up, even though we were in the middle/back area. He then rushes his daughter to the point she quite literally clammers over me so they can push through people. The food was off putting: spinach & ricotta in a red sauce is a weird choice. The bun was fine. Tony’s chocolates were a great choice, though. The first flight was terrible. The second flight was much better. I was in a state after the first flight, and two of the flight attendants did a great job supporting the intense nausea I was suffering from by providing a large bag of ice and multiple ginger ales.

Not only was the flight delayed more than 3 hours but also there was no internet or movies on the flight. It was Flair/Spirit quality of experience at Westjet prices

Last minute cancellation, followed by last minute delay with the rescheduled flight. Both due to interval operation issues. Poor resolution.Very disappointing.

They could care less about you. Just under a 4 hour delay in Seattle, leading into a missed connection in Vancouver, which led to 2 more delays that added up to 3 more hours leaving us to have to sleep on the floor of the Toronto airport cause they don't help you find accomodations and they just book you on the next flight out. Took an additional 14 hours to get home. Always given the brush off to get rid of us. Worst airline ever

On-time boarding, departure, and flight. Electronic notifications about bags for the whole of their own journey too - from when they got accepted into the system through to being loaded onto the plane and then finally being disgorged onto the right carousel. That was an excellent feature.

Everything was fine, crew was great. Always appreciate an on-time flight.

All was good with comfort and ease of boarding. There was confusion from what gate to board at. Meant moving a long distance but I allowed plenty of time for this.

Good airport. Good entertainment on the big flight. Did not have a good way to prop up or mount my phone/ipad

Old, noisy plane, bad coffee, delayed. Flight attendant was very nice.

Air Canada at SeaTac was the best. Polite, helpful, all good!

The problem in part was with the airports, not really the fault of Air Canada. Confusing directions regarding the gate, in Seattle the recommended shuttle train entrance was not working. Simular problems in Toronto. Baggage arrived in good time. Marx Bros movie on entertainment from Seattle. I was told I was laughing too loudly, by the flight attendant. No lounge in Seattle. Lounge in Toronto excellent.

Speechless! How professionally running. I am so proud of Air Canada 🍁 👏 ..

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