SEA - YHZ

$203 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 8/21. 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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Flights 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

Wed, Sep 3 - Tue, Sep 9
WestJet Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
WestJet Logo
8:00 am - 12:59 pmYHZ-SEA
8h 59m1 stop
$354WestJet
Find Deal
Wed, Oct 8 - Mon, Oct 13
WestJet Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
WestJet Logo
8:00 am - 12:59 pmYHZ-SEA
8h 59m1 stop
$355WestJet
Find Deal
Wed, Sep 3 - Mon, Sep 8
WestJet Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
WestJet Logo
8:00 am - 12:59 pmYHZ-SEA
8h 59m1 stop
$365WestJet
Find Deal
Wed, Sep 3 - Tue, Sep 9
WestJet Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
WestJet Logo
8:30 am - 7:14 pmYHZ-SEA
14h 44m2 stops
$366WestJet
Find Deal
Wed, Sep 3 - Sun, Sep 14
Air Canada Logo
5:30 am - 6:26 pmSEA-YHZ
8h 56m1 stop
Air Canada Logo
5:25 am - 10:59 amYHZ-SEA
9h 34m1 stop
$396Air Canada
Find Deal
Wed, Sep 3 - Tue, Sep 9
 Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
 Logo
11:00 pm - 8:29 pmYHZ-SEA
25h 29m3 stops
Wed, Sep 3 - Tue, Sep 9
 Logo
1:50 pm - 5:59 amSEA-YHZ
12h 09m2 stops
 Logo
11:00 pm - 8:29 pmYHZ-SEA
25h 29m3 stops
Sat, Dec 6 - Sat, Dec 13
Air Canada Logo
8:15 am - 10:06 pmSEA-YHZ
9h 51m1 stop
Air Canada Logo
4:00 pm - 9:56 pmYHZ-SEA
9h 56m1 stop
$403Air Canada
Find Deal
Fri, Aug 29 - Sat, Sep 6
American Airlines Logo
12:46 am - 2:44 pmSEA-YHZ
9h 58m2 stops
American Airlines Logo
2:37 pm - 10:04 pmYHZ-SEA
11h 27m1 stop
$447American Airlines
Find Deal
Fri, Aug 29 - Sat, Sep 6
American Airlines Logo
12:46 am - 2:44 pmSEA-YHZ
9h 58m2 stops
American Airlines Logo
4:01 pm - 9:21 amYHZ-SEA
21h 20m2 stops
$452American Airlines
Find Deal
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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 $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. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonFebruary
High seasonAugust
Cheapest flight$203
Best time to beat the crowds but there is an average 37% increase in price.
Most popular time to fly and prices are also 9% 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 $203 for a one-way ticket and $354 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 $515 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 8849 reviews
8.1Crew
6.6Food
7.7Boarding
7.3Comfort
7.0Entertainment
Airline reviews

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.

8.0 ExcellentAnonymous, Jun 2025IAH - YEG
Read more United Airlines reviews

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.

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.

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

West Jet flight was cancelled and I was not notified. I found out when I tried to check in on-line. Spent 4 hours on the phone with West Jet and Just Fly trying to figure what happened.

Only issue was checking in took over an hour and was very stressful. It all worked out, but we weren't sure for a while.

We didn’t make the flight due to Delta’s check in line moving too slow.

The flight was ahead of schedule. A half glass of juice and a cookie is pathetic! No entertainment possibilities. Not even a plug-in for phone or IPad if you wanted to watch a downloaded movie. Back to flying Air Canada!

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.

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.

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.

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

Information on your arrival and departure airports

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