HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$252+ Cheap flights from Halifax (YHZ) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
YHZ — SEA
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Halifax to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Halifax to Seattle

Cheapest flights from Halifax to Seattle
Explore the most affordable flight options available from Halifax to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.

This oojo deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:50 am
YHZ
-
SEA
2 stops12h 55m
WestJet
Tue 5/127:35 pm
SEA
-
YHZ
2 stops11h 10m
WestJet
Deal found 3/9$252
This oojo deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/259:50 am
YHZ
-
SEA
2 stops12h 55m
WestJet
Mon 6/17:35 pm
SEA
-
YHZ
1 stop8h 35m
WestJet
Deal found 3/11$263
This oojo deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:50 am
YHZ
-
SEA
2 stops12h 55m
WestJet
Thu 4/307:35 pm
SEA
-
YHZ
1 stop8h 35m
WestJet
Deal found 3/10$265
This FlightHub deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/269:50 am
YHZ
-
SEA
2 stops12h 55m
WestJet
Tue 6/27:35 pm
SEA
-
YHZ
1 stop8h 35m
WestJet
Deal found 3/11$286

Find flight deals from Halifax to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Halifax (YHZ) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$252
(oojo)

Popular in

October

Cheapest in

April

Average price

$570
Provider with most accurate pricing for Halifax Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Halifax Intl-Seattle/Tacoma Intl flights.
Search Deals
From Halifax Intl to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Halifax to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 11, 2026.
Use the filters below to find and compare flights from Halifax to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Mon 4/27

9:50 am-6:45 pm

2 stops12h 55m

Seattle/Tacoma Intl

Thu 4/30

7:35 pm-10:45 am

2 stops11h 10m

$272

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Sun 6/14

6:15 pm-9:40 am

1 stop19h 25m

Seattle/Tacoma Intl

Mon 6/22

7:00 am-9:15 pm

1 stop10h 15m

$309
Quickest round-trip

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Sun 5/24

3:30 pm-10:48 pm

1 stop11h 18m

Seattle/Tacoma Intl

Sun 5/31

5:30 am-9:45 pm

1 stop12h 15m

$381

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Mon 4/13

7:00 am-12:34 am

2 stops21h 34m

Seattle/Tacoma Intl

Mon 4/20

1:58 pm-4:03 pm

2 stops22h 05m

$427

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Tue 4/14

5:05 am-11:27 pm

3 stops22h 22m

Seattle/Tacoma Intl

Mon 4/20

1:58 pm-4:03 pm

2 stops22h 05m

$429

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Tue 4/14

9:00 am-7:00 pm

2 stops14h 00m

Seattle/Tacoma Intl

Tue 4/14

11:59 pm-12:49 am

2 stops20h 50m

$438

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Sun 4/12

7:00 am-9:53 pm

1 stop18h 53m

Seattle/Tacoma Intl

Tue 4/14

1:58 pm-4:03 pm

2 stops22h 05m

$474

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Sun 6/14

11:00 pm-9:00 pm

3 stops26h 00m

Seattle/Tacoma Intl

Mon 6/22

7:00 am-9:05 pm

2 stops10h 05m

$475
Cheapest one-way
Quickest one-way

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Sat 8/1

9:50 am-6:45 pm

2 stops12h 55m

$266

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Fri 7/31

9:50 am-9:00 pm

2 stops15h 10m

$266

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Halifax-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Halifax-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Halifax-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Halifax-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Halifax-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Halifax to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Halifax with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Halifax to Seattle?

Currently, April is the cheapest month in which you can book a flight from Halifax to Seattle (average of $187). Flying from Halifax to Seattle in December is currently the most expensive (average of $421). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Halifax to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Halifax to Seattle?

    Airlines like WestJet fly from Halifax to Seattle in about 12h 55m. The time it takes to get you to your destination can typically vary by up to . There are 2749 mi between Halifax and Seattle.

  • Can I find deals for flights from Halifax to Seattle that include hotel bookings?

    Yes. In addition to deals on Halifax to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Halifax to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Halifax to Seattle.

  • Can I find deals for business class flights from Halifax to Seattle?

    Yes. Cheapflights offers flight deals from Halifax to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Halifax to Seattle?

    Currently, April is the cheapest month in which you can book a flight from Halifax to Seattle (average of $187). Flying from Halifax to Seattle in December is currently the most expensive (average of $421). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.