SEA - YHZ

$127 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 9/19. 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, 0 bags

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$266
Typical prices: $457-$560
WestJet
Sun 9/27Fri 10/2
SEA - YHZ • 1 stop
Cheapest one-way
$127
Typical prices: $190-$219
WestJet
Sat 9/19
SEA - YHZ • 1 stop
Top airlines
Cheapest • from $266 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Halifax. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $573 (round-trip)
Shortest trip • 9h 22m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 55% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
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Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Halifax!
Flight Deals
Booking Insights
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

Sun, Sep 27 - Fri, Oct 2
WestJet Logo
7:35 pm - 8:10 am
SEA
-
YHZ
8h 35m
1 stop
WestJet Logo
9:50 am - 6:45 pm
YHZ
-
SEA
12h 55m
2 stops
$266WestJet
Sun, Sep 27 - Sat, Oct 3
WestJet Logo
7:35 pm - 8:10 am
SEA
-
YHZ
8h 35m
1 stop
WestJet Logo
9:50 am - 6:45 pm
YHZ
-
SEA
12h 55m
2 stops
$269WestJet
Sun, Sep 27 - Fri, Oct 2
WestJet Logo
7:35 pm - 8:10 am
SEA
-
YHZ
8h 35m
1 stop
WestJet Logo
9:50 am - 6:45 pm
YHZ
-
SEA
12h 55m
2 stops
$284WestJet
Sun, Sep 27 - Sat, Oct 3
WestJet Logo
7:35 pm - 10:45 am
SEA
-
YHZ
11h 10m
2 stops
WestJet Logo
9:50 am - 6:45 pm
YHZ
-
SEA
12h 55m
2 stops
$293WestJet
Sun, Sep 27 - Sat, Oct 3
WestJet Logo
7:35 pm - 8:10 am
SEA
-
YHZ
8h 35m
1 stop
WestJet Logo
6:15 pm - 9:40 am
YHZ
-
SEA
19h 25m
1 stop
$297WestJet
Sat, Sep 26 - Fri, Oct 2
WestJet Logo
7:35 pm - 8:10 am
SEA
-
YHZ
8h 35m
1 stop
WestJet Logo
6:15 pm - 6:45 pm
YHZ
-
SEA
28h 30m
1 stop
$298WestJet
Fri, Oct 23 - Thu, Oct 29
WestJet Logo
7:35 pm - 10:45 am
SEA
-
YHZ
11h 10m
2 stops
WestJet Logo
8:20 am - 2:20 pm
YHZ
-
SEA
10h 00m
1 stop
$300WestJet
Thu, Aug 20 - Sat, Aug 22
WestJet Logo
7:00 am - 9:20 pm
SEA
-
YHZ
10h 20m
1 stop
WestJet Logo
8:30 am - 6:45 pm
YHZ
-
SEA
14h 15m
2 stops
$311WestJet
Wed, Aug 12 - Thu, Aug 27
WestJet Logo
7:00 am - 7:10 pm
SEA
-
YHZ
8h 10m
1 stop
WestJet Logo
9:50 am - 6:45 pm
YHZ
-
SEA
12h 55m
2 stops
$315WestJet
Sun, Sep 27 - Fri, Oct 2
WestJet Logo
7:35 pm - 8:10 am
SEA
-
YHZ
8h 35m
1 stop
WestJet Logo
3:35 pm - 9:40 am
YHZ
-
SEA
22h 05m
1 stop
$316WestJet
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?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Halifax departing in September.

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 February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $985 and $970 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 3 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$127
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly and prices are also 19% 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 5 days, the lowest price for a flight from Seattle to Halifax was $127 for a one-way ticket and $266 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?

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to Halifax are Delta and WestJet. With an average price for the route of $519 and an overall rating of 7.8, Delta is the most popular choice. WestJet is also a great choice for the route, with an average price of $403 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.
7.8
DeltaOverall score based on 8456 reviews
8.1Boarding
8.5Crew
7.8Entertainment
7.2Food
7.8Comfort
Airline reviews

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

2.0 MediocreBlake, Jun 2026
SEA - BOS
Read more Delta reviews

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

The cabin temperature was nice and cool. The wifi was not working.

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

First flight out and was 85 minutes delayed. Notification came out way too late

Terrible experience delays going there and delays coming back will not be flying delta

The crew was excellent. The turbulence was very bad and they were unable to serve our dinner. The captain informed the passengers that we were going to get water and snack instead. They provided us ample snacks instead. Otherwise the trip was good.

Delayed but they wouldn’t tell us tell after boarding was scheduled to start. So it’s like we know it’s delayed why won’t they say anything?? How long? The. We ended up sitting on the tarmac for 2 hours before they finally cancelled the flight. Bad!

It wasn’t bad but I swear their planes keep getting smaller and cramped so it was uncomfortable for such a long time. Also the food is just okay they need some different options

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.

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.

Scrooge airlines spoiled my last chance at Christmas with my 95 and 92 year old folks. and rest of the family in Calgary. Ticket personnel would not let me on without a passport and I always visit Canada with my enhanced driver;s License when I travel from the US

Westjet is the worst airline in the world, they are absolutely terrible, there are to many things that happened that I can't explain in this message, I would like to talk to someone about my ordeal. I am partial handicapped and that I can only walk a short distance, I calculated how far I walked and it was more than a kilometer, the pain is so bad today I have to go to my docor, they told me there was nobody available to take me to my gate, this is just one instance. This is not finished yet, I need to contact westjet and let them know about my trip from hell

Really impressed. Organised boarding arrangements, nice new plane with decent seats. Professional yet humorous cabin crew. Nice meal and snack service, all really impressive.

We were not able to board the flight to Halifax. Westjet switched to a smaller plane and we were booked on a later flight which was not acceptable to us. We were told that they attempted to contact us but did not have contact information. Nor did either Kayak not Kiwi advise us. In February I booked a flight to Sri Lanka through Kayak with FlightHub for myself and a friend. We were advised of a change in schedule and because I was travelling outside of Canada at that time, my friend, Louise Lore, contacted FlightHub and revised our itinerary. Our original flight from Toronto through Frankfurt to Mumbai was to arrive in time for us to catch an 8:45pm flight to Colombo, Sri Lanka on February 28th but because of the change did not arrive until 1:00am February 29th. When I arrived in Mumbai I was told that my flight from Mumbai to Colombo had not been revised and that, because I was a no-show for my flight all of my tickets had been cancelled. Ms Lore spent from 2:30am until 5:30am on the phone with FlightHub trying to rectify the situation. She was told there was nothing they could do and a supervisor refused to speak with her. The next morning I went to the Lufthansa office at the Mumbai airport and the problem was resolved in less than 15 minutes. I will not be booking through Kayak again. Both experiences have been disastrous and I cannot imagine going through this again Linda Toole

They lost our luggage and didn’t return it until 15 days AFTER we got back.

The long delay was the worst part of the flight.

We travelled from London to Halifax. Customer service was excellent.fron the day we booked until arriving. The gate was only a short frombthe waiting area and walk Boarding was efficiently handled and plane took off on time. The service on the plane was very good. Fool an acceptable drandard Only downside was that the legroom was tight for anybody just over 6ft tall and am usually able to travel without difficulty. I will definitely fly with Air Canada again but next time pay for extr space.

everything was fine. but paying for 1 piece of check-in luggage and denying passengers to board with carry-on luggage which by air line's standards does not fit is not acceptable. when one travels for a longer time one needs to have some essentials

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

My flight was cancelled. The flight they booked me on was delayed over 2 hours with mechanical problems so I missed my connection and they ran out of hotel rooms, so I had to book and pay for it on my own. I also had to pay for food out of pocket. It was a terrible experience.

Was surprised the plane was a turbo prop. These are much noisier than jet planes.

Plus; Easy check in. Organized and efficient crew. Minus; Legroom on plane. Wiped down armrests and tray table with a Clorox wipe and wipe showed more dirt than I thought was there.

An hour and a half late. Seats as always ridiculously cramped. Beverage options limited. Stale pretzels. The usual…

We had a significant illness at the last minute. Air Canada was unsympathetic and rude and refused to give us any credit on our unused ticket.

Ran wonderfully and smoothly roundtrip. Could not have asked for more from the staff.

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

Information on your arrival and departure airports