SEA - YHZ

$164 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 9/12. 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
$353
Typical prices: $611-$361
WestJet
Sun 8/16Tue 8/25
SEA - YHZ • 2 stops
Cheapest one-way
$164
Typical prices: $200-$219
WestJet
Sat 9/12
SEA - YHZ • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Seattle and Halifax. You'll need at least 1 connection.
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Top layover airports
Cheapest • Avg $561 (round-trip)
Shortest trip • 9h 27m (one-way)
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 53% compared to booking last minute.
Insights
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When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
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+1
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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, Aug 16 - Tue, Aug 25
WestJet Logo
7:00 am - 9:05 pm
SEA
-
YHZ
10h 05m
2 stops
WestJet Logo
3:35 pm - 9:00 pm
YHZ
-
SEA
9h 25m
1 stop
$353WestJet
Sat, Jul 18 - Sat, Jul 25
WestJet Logo
7:35 pm - 8:10 am
SEA
-
YHZ
8h 35m
1 stop
WestJet Logo
7:45 am - 6:45 pm
YHZ
-
SEA
15h 00m
1 stop
$362WestJet
Tue, Jul 28 - Sat, Aug 1
WestJet Logo
7:00 am - 9:05 pm
SEA
-
YHZ
10h 05m
2 stops
WestJet Logo
3:35 pm - 9:00 pm
YHZ
-
SEA
9h 25m
1 stop
$363WestJet
Sat, Jul 25 - Sat, Aug 1
WestJet Logo
7:35 pm - 8:10 am
SEA
-
YHZ
8h 35m
1 stop
WestJet Logo
3:35 pm - 9:00 pm
YHZ
-
SEA
9h 25m
1 stop
$364WestJet
Sun, Jul 19 - Sat, Aug 1
WestJet Logo
7:35 pm - 8:10 am
SEA
-
YHZ
8h 35m
1 stop
WestJet Logo
3:35 pm - 9:00 pm
YHZ
-
SEA
9h 25m
1 stop
$369WestJet
Sat, Jul 18 - Sat, Jul 25
WestJet Logo
7:35 pm - 8:10 am
SEA
-
YHZ
8h 35m
1 stop
WestJet Logo
8:30 am - 6:45 pm
YHZ
-
SEA
14h 15m
2 stops
$371WestJet
Wed, Jul 15 - Sat, Jul 25
WestJet Logo
7:00 am - 9:15 pm
SEA
-
YHZ
10h 15m
1 stop
WestJet Logo
3:35 pm - 9:00 pm
YHZ
-
SEA
9h 25m
1 stop
$376WestJet
Tue, Jul 21 - Sat, Aug 1
WestJet Logo
7:35 pm - 10:45 am
SEA
-
YHZ
11h 10m
2 stops
WestJet Logo
3:35 pm - 9:00 pm
YHZ
-
SEA
9h 25m
1 stop
$377WestJet
Mon, Jul 20 - Sat, Aug 1
WestJet Logo
7:00 am - 7:10 pm
SEA
-
YHZ
8h 10m
1 stop
WestJet Logo
3:35 pm - 9:00 pm
YHZ
-
SEA
9h 25m
1 stop
$378WestJet
Sat, Jul 18 - Sun, Jul 26
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
$379WestJet
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 August.

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 March, where the average cost of round-trip tickets is $985 and $852 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 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$164
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 27% 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 $164 for a one-way ticket and $353 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 $494 and an overall rating of 7.9, Delta is the most popular choice. WestJet is also a great choice for the route, with an average price of $405 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.
7.9
DeltaOverall score based on 8458 reviews
7.8Entertainment
8.1Boarding
7.9Comfort
8.5Crew
7.2Food
Airline reviews

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

10.0 ExcellentIrmara, May 2026
MCO - BOS
Read more Delta reviews

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

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.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

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

Westjet was late and we missed our connecting flight with Cathay. Had to wait 8 hours. Westjet only allows 1 checked in baggage for international flights- it’s always been 2. Canada allows only 1 sandwhich bag size full off small liquids. Everything else will be tossed. Awful trip. Will never fly west jet or go to Toronto to connect flights!

No pre boarding kiosk to check in, baggage claim detected luggage didn’t leave the airport, poorly managed recovery of lost luggage, and blame lost tag from conveyor to TSA/security, very poor from TSA/security check to delivery, crucial if compensation will go thru and will likely wait for months unlike United,

Flight was good, crew was excellent. No complaints at all

Delayed 3 times in a row for 4 hours total. Incrementally pushing back the flight claiming gate delays but they eventually changed the actual plane, due to technical issues. This strategy to avoid compensation to passengers is unprofessional.

I didn't think about not having the right app for wifi because my connecting flight was with Westjet and when I took off from Seattle I was thinking I would use my wifi, but realized I couldn't on my Westjet app and I did not have Delta's app downloaded.

Plane seating was uncomfortable, very tight fitting for someone my height, did not recline and overall un enjoyable

Everything was good except for flight delay, but it was because of the snow storm in the arrival airport.

No communication from Kayak or West Jet. Booked extra flights, flights cancelled, no one answers calls. Will be disputing charges.

The trip from LAX to Calgary was aboard a 737-700, which is more than twenty years old. Service was fine, and the food was good, but there was no inflight entertainment, and no WiFi. The flight from Calgary to Vancouver was also delayed more than an hour, due to congestion on the Calgary tarmac. And no food service, but there was in-flight WiFi which made a big difference.

Leg room is a problem the plane was dirty and there were no movies available on the app

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

Small suitcase used for carryon the last time was refused by boarding crew this time. Appears to be at the discretion and mood of the person on the day. Flight was only half booked, there would have been no problem with space.

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.

The airplane has been replaced and late night layover have been extended from 3 to 7 and the only compensation was a $15 food voucher after most restaurants have been closed, not helping with children after a 18+ hour international flight

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

Was notified on a timely manner of any changes, if any, of the flight schedules.

My original flight was cancelled -- but I have to mention the excellent service I was given by the agent working at check-in who found me an earlier flight -- and helped me navigate security, ensured my baggage kept up with the quick check-in and boarding process -- and just generally made the re-booking process a breeze. Thank you! On flight was fine, but we unfortunately meant no in-flight service -- no water, or coffee (it was an early morning flight...), but the crew was pleasant and accommodating throughout.

No in flight entertainment on a 750 mile flight. Made you join their "program" to get it. It was free on my first leg of the flight from Cincinnati to Toronto. In addition, there was brief period of turbulence that prohibited the crew from serving refreshments. They used that short interruption as an excuse to never serve drinks at all. They had ample time to do so and chose not to. They went around serving half cups of water instead rather than have their carts in the aisle with drinks.

It was great other than the plane was really small

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

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

Information on your arrival and departure airports