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Cheap flights from Halifax to Seattle from C$ 245

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
YHZ — SEA
19 May — 26 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Halifax to Seattle

Enter your travel dates to find the best prices.

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 19 April 2026.

Tue 2/69:50 a.m.
YHZ
-
SEA
2 stops12h 55m
WestJet
Tue 9/67:35 p.m.
SEA
-
YHZ
1 stop8h 35m
WestJet
Deal found 18/4C$ 427
Fri 11/94:10 p.m.
YHZ
-
SEA
1 stop8h 54m
Air Canada
Thu 17/98:00 a.m.
SEA
-
YHZ
2 stops11h 55m
Air Canada
Deal found 18/4C$ 434
Sat 23/512:40 p.m.
YHZ
-
SEA
2 stops23h 20m
United Airlines
Tue 26/55:00 p.m.
SEA
-
YHZ
1 stop18h 58m
United Airlines
Deal found 18/4C$ 439
Sat 5/99:50 a.m.
YHZ
-
SEA
2 stops15h 10m
WestJet
Mon 14/97:35 p.m.
SEA
-
YHZ
1 stop8h 35m
WestJet
Deal found 15/4C$ 448
Fri 11/99:50 a.m.
YHZ
-
SEA
2 stops12h 55m
WestJet
Thu 17/97:35 p.m.
SEA
-
YHZ
2 stops11h 10m
WestJet
Deal found 15/4C$ 456
Fri 29/58:00 p.m.
YHZ
-
SEA
1 stop17h 40m
WestJet
Sat 6/67:35 p.m.
SEA
-
YHZ
1 stop8h 35m
WestJet
Deal found 14/4C$ 457

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 19 April 2026.

Round-trip from

C$ 427

One-way from

C$ 245

Popular in

October

Cheapest in

March

Average price

C$ 515
WestJet
  • WestJet
  • 2/6-9/6
  • 3 total stops
  • 21h 30m total
  • Halifax to Seattle
Search Deals
Air Canada
  • Air Canada
  • 21/9
  • 1 total stop
  • 8h 54m total
  • Halifax to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 629,999 searches. Data last updated 19 April 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

Sat 23/5

12:40 p.m.-8:00 a.m.

2 stops23h 20m

Seattle/Tacoma Intl

Tue 26/5

5:00 p.m.-3:58 p.m.

1 stop18h 58m

C$ 439

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Sat 5/9

3:35 p.m.-9:00 p.m.

1 stop9h 25m

Seattle/Tacoma Intl

Mon 14/9

7:35 p.m.-8:10 a.m.

1 stop8h 35m

C$ 449

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Thu 30/7

8:30 a.m.-6:45 p.m.

2 stops14h 15m

Seattle/Tacoma Intl

Sat 8/8

7:35 p.m.-10:45 a.m.

2 stops11h 10m

C$ 471

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Fri 11/9

9:50 a.m.-6:45 p.m.

2 stops12h 55m

Seattle/Tacoma Intl

Thu 17/9

7:35 p.m.-10:45 a.m.

2 stops11h 10m

C$ 472

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Fri 8/5

7:45 a.m.-6:45 p.m.

1 stop15h 00m

Seattle/Tacoma Intl

Sun 17/5

10:30 a.m.-6:55 a.m.

2 stops16h 25m

C$ 480

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Fri 7/8

8:00 p.m.-9:40 a.m.

1 stop17h 40m

Seattle/Tacoma Intl

Tue 11/8

7:00 a.m.-7:10 p.m.

1 stop8h 10m

C$ 494
Quickest round-trip

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Thu 30/7

3:35 p.m.-9:00 p.m.

1 stop9h 25m

Seattle/Tacoma Intl

Sat 8/8

7:00 a.m.-7:10 p.m.

1 stop8h 10m

C$ 532
Cheapest one-way
Quickest one-way

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Thu 11/6

4:50 p.m.-11:59 p.m.

1 stop11h 09m

C$ 268

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Tue 29/9

7:00 a.m.-3:54 p.m.

2 stops12h 54m

C$ 271

HalifaxSeattle

YHZ - SEA

YHZSEA

Halifax Intl

Wed 10/6

6:30 a.m.-10:34 p.m.

2 stops20h 04m

C$ 279

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/4

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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, March is the cheapest month in which you can book a flight from Halifax to Seattle (average of C$ 475). Flying from Halifax to Seattle in October is currently the most expensive (average of C$ 1,031). 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.

How much does it cost to fly round-trip from Halifax to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 19 April 2026.
Check out reviews from past customers who have flown with United Airlines,WestJet, andAir Canada from Halifax to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,603 reviews
Check prices

Overall

7.4

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,603 reviews
United Airlines
7.4
Good
9,603 reviews
Check prices

Overall

7.4

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
WestJet
7.2
Good
3,322 reviews
United Airlines
7.4
Good
9,603 reviews
Check prices

Overall

7.4

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
Air Canada
7.1
Good
10,939 reviews
United Airlines
7.4
Good
9,603 reviews
Check prices

Overall

7.4

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 United Airlines and WestJet fly from Halifax to Seattle in about 9h 25m. The time it takes to get you to your destination can typically vary by up to 13h 55m. The distance from Halifax to Seattle is about 4424 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Halifax to Seattle round-trip?

    Flying on WestJet is currently your cheapest option to Seattle, with prices starting at C$ 265. Additional round-trip tickets that might be worth considering are offered by United Airlines and Air Canada, with the lowest prices starting at C$ 359 and C$ 526, respectively. WestJet is 60% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, March is the cheapest month in which you can book a flight from Halifax to Seattle (average of C$ 475). Flying from Halifax to Seattle in October is currently the most expensive (average of C$ 1,031). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Leavenworth
Mukilteo
Tacoma
Kent
Bothell
Cashmere
Tukwila
Olympia
Renton
Marysville
Lynnwood
Kirkland

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Halifax to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
St John to Portland flights

Top 3 airlines flying from Halifax to Seattle

Discover the top 3 airlines that operate flights from Halifax to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 19 April 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 244AverageC$ 439FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 359AverageC$ 657FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 497AverageC$ 637FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Halifax to Seattle?

Cheapflights helps you search for flights from Halifax to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Halifax to Seattle?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Halifax to Seattle.

Can Cheapflights find flights from Halifax to Seattle with no change fees?

Yes! Cheapflights helps users easily find flights from Halifax to Seattle with no change fees.

Can Cheapflights notify me if prices for flights from Halifax to Seattle become cheaper?

Of course! You can now track prices for flights from Halifax to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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