SEA - YHZ

$178 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 5/29. 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.
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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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Flights Deals

Cheap Flight Deals 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.

Recent round-trip flight deals from Seattle to Halifax

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Halifax.
Discover the best prices for you by selecting your travel dates on KAYAK.
Air Canada Logo
11:35 am - 2:09 amSEA-YHZ
10h 34m1 stop
Air Canada Logo
5:15 am - 10:51 amYHZ-SEA
9h 36m1 stop
$356Air Canada
Find Deal
Thu, Jun 12 - Thu, Jun 19
Air Canada Logo
11:35 am - 2:09 amSEA-YHZ
10h 34m1 stop
Air Canada Logo
5:15 am - 10:51 amYHZ-SEA
9h 36m1 stop
$371Air Canada
Find Deal
Thu, Jun 12 - Thu, Jun 19
United Airlines Logo
11:30 am - 1:49 amSEA-YHZ
10h 19m1 stop
United Airlines Logo
5:20 am - 10:51 amYHZ-SEA
9h 31m1 stop
$404United Airlines
Find Deal
Thu, May 29 - Thu, Jun 5
WestJet Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
WestJet Logo
8:30 am - 8:29 pmYHZ-SEA
15h 59m2 stops
$408WestJet
Find Deal
Wed, Sep 24 - Wed, Oct 1
United Airlines Logo
7:27 pm - 2:03 pmSEA-YHZ
14h 36m2 stops
United Airlines Logo
5:20 am - 10:51 amYHZ-SEA
9h 31m1 stop
$412United Airlines
Find Deal
Thu, May 29 - Thu, Jun 5
WestJet Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
WestJet Logo
8:00 am - 8:29 pmYHZ-SEA
16h 29m1 stop
$419WestJet
Find Deal
Thu, Sep 25 - Tue, Sep 30
 Logo
3:58 pm - 4:51 pmSEA-YHZ
20h 53m3 stops
 Logo
5:15 am - 10:51 amYHZ-SEA
9h 36m1 stop
Thu, Jun 12 - Thu, Jun 19
 Logo
3:58 pm - 1:57 pmSEA-YHZ
17h 59m3 stops
 Logo
1:30 pm - 3:03 pmYHZ-SEA
29h 33m2 stops
Thu, Jun 12 - Thu, Jun 19
Delta Logo
12:40 am - 5:39 pmSEA-YHZ
12h 59m2 stops
Delta Logo
8:00 am - 12:59 pmYHZ-SEA
8h 59m1 stop
$541Delta
Find Deal
Sat, Sep 20 - Fri, Oct 3
Delta Logo
12:40 am - 5:39 pmSEA-YHZ
12h 59m2 stops
Delta Logo
8:30 am - 6:41 pmYHZ-SEA
14h 11m2 stops
$563Delta
Find Deal
Sat, Sep 20 - Thu, Oct 2
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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.

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 $395 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $833 and $789 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. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonFebruary
High seasonMay
Cheapest flight$178
Best time to beat the crowds but there is an average 36% increase in price.
Most popular time to fly and prices are also 1% lower on average.
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 $178 for a one-way ticket and $356 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?

    Star Alliance, oneworld, and SkyTeam 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, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Halifax are Delta and United Airlines. With an average price for the route of $737 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $523 and an overall rating of 7.4.

  • 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.

Top 4 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.
8.0
DeltaOverall score based on 7934 reviews
7.9Comfort
8.2Boarding
7.9Entertainment
7.3Food
8.5Crew
Airline reviews

Our bag was lost so that made unnecessary chaos On our trip

6.0 GoodBarbara, Apr 2025JFK - FCO
Read more Delta reviews

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

After a 5 hour delay waiting at the gate (3 delays adding up) with no clear reason provided, we finally boarded flew 3/4 of the way to Toronto then were turned back to New York. As we neared New York, the pilot declared that it was his fault, something to do with timing and him not being allowed into the country???? How could the airline let his happen? They had hours to prepare and make sure they had a crew available for the flight! We ended up in Toronto a day late with no sleep.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

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.

My suitcase was completed destroyed. The top part is broken and unusable now.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

I do prefer to fly United and have always had excellent service, except for bad weather. Flights are on time and staff is alway curtious and helpful

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

All male crew was just too woke for me. I felt like a sardine. I will never take a window seat or the rearmost seat again. I booked early and did not pay for seat selection and that was a mistake. The security at IAH was atrocious. I was violated and radiated as I was in a hurry to connect to my other flight. I may have lost items under the seat in front of me that I couldn't see nor bend over to look.

Liked nothing. As per previous segment it was delay delay delay.

In general ok, my only issue is that they had no hot items for purchase. I had very little time in my connection due to baggage/customs/TSA, thag I barely even had a chance for a stop at the washroom and buy water, to make it to my gate when they started boarding. I had nothing to eat because the trip started early, so I was ready to purchase, and they had nothing except for dry items like snacks. I had to purchase a mediocre, overpriced cheese and fruit board, instead of at least a pizza or sliders that I was planning on getting. Other than that, it was fine. But that’s typical Air Canada, to not have enough.

Most disapointing experience. We were rerouted to Toronto, after a 7 hours flight , where we sat on the tarmac for a little over 4 hours, in a full airplain with no air. We were given a tiny cup of water twice during that wait. After the long wait we taxi out of toronto to wait another 30 min. Many people missed their conections including my kids and I. We were promised a hotel room in Montreal on the aircraft and at the exit of the aircraft, then directed to a desk after custom where me and my two kids were told that we do not get a room for the night and that we were on our own, after a back and fourth and stating what was told to us, the agent at the counter says that we are right and that we should have a room. I ask the lady if she could look into a different flight for us for the next day as I was with two you g kids and wanted them to get some rest. The gentlemen next to her jumps in and said there wss nothing without even (pretending) looking at their system, I insist and say that they could look for the kids. They seemed to have trouble with our reservation so they gave up. I told them that I needed to talk to a manager, they said there were no managers and that no one can do anything, to which I responded that there must be someone that could do something and that it does not make sense for them to repeat the same think as we are not undestanding each other. She threatns to call security and says I am rude. I say I will go, just give me the vouchers and ger response is “ not giving you the vouchers because you are rude”. I was not rude. It is normal to want to talk to a manager. I even said that the people at the counter were not resoonsible for the long journey and that there was nothing they could have done. But to threten and himiliate someone just because they ask for someone else to talk to ? I understand they are overwhelmed, but you know the quality and calibre of a company in the bad times not the smooth ones. I ended up leaving and paying for my own room and board.

The staff were the friendliest I have encountered in years. Absolutely great!

Plane changed to one with no entertainment system or ability to serve hot meals

Flight was delayed 3 times. Then cancelled due to pilot being timed out. They refused hotel vouchers. Gate attendants were very rude and could not help you at all.

Good. Would be better if the carry on baggage was free.

Horrible. I checked out myself that it seems that I can have a free carry-on. But they ask me to pay $75 when we are nearly boarding. It was tricky during check out that make you mistake that you can have a carry-on beside your personal item. Also they ask $75 in the airport instead of $35 during checkout. So the whole process is designed to make you this mistake

Westjet is one of the worst airlines in the world. 100% guaranteed to have flight delays and flight cancellations. Will never book again with Westjet.

Plane should have entertainment, instead of people paying to use wifi

Westjet has been absolutely terrible! Flights continually cancelled. Took 4 days to get home. Would have been 5, but we booked last flight with another airline after our Westjet flight was cancelled. Even pilot on original flight looked frustrated! Funny how they say cancelation is weather related, but they still have more than 1 other flight leaving to same destination on same day, but of course those are all full. This happened more than once on this trip. Two weather related cancelations and 1 mechanical. Not sure if the last flight even went ahead. Felt so sorry for families with kids and babies, and the older travellers. Felt like we lived out of suitcases and airports for days - SO RIDICULOUS! Next to no help from Westjet staff at airports, but it appears there is nothing they can help you with. Westjet has made it that they are unreachable when you need them! People were getting extremely frustrated, and rightfully so. Additional costs to us really added up, but Westjet literally DOESN'T CARE! Final straw was when we had to pay $1280 on a different airline (economy) trying to get home after another cancelled flight. Westjet will be refunding us a whole $140! Can't believe how this airline operates. We will never, ever use them again!

The only thing I didn’t like was how far away the gate was. I would have requested a wheelchair had I known.

no staff available to help, no systems available to coordinate

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.

No entertainment. Luckily I was the only person in that row. Small seating

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

Both fights were delayed. Food could be better comparing to other international flights

I found the personal kind and caring. The Problem was not enough people to serve the the customers. The flow was restricted the crowd frustrated by the wait times. Air Canada seems to hire good people but they need backup in order to provide the service we pay for.

The flight was booked solid and there is no leg room for anyone over 6 feet tall, which is probably 25% of your customers. I have selected aisle seats and was given the middle twice. This is not something that can be changed, so I shouldnt bring it up, but that is my feedback.

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