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Cheap flights from Seattle to Halifax from C$ 237

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 21/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YHZ
20 Jun — 27 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Halifax

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Halifax
Explore the most affordable flight options available from Seattle to Halifax. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 May 2026.

Sat 29/87:35 p.m.
SEA
-
YHZ
1 stop8h 35m
WestJet
Mon 7/99:50 a.m.
YHZ
-
SEA
2 stops12h 55m
WestJet
Deal found 16/5C$ 477
Tue 6/107:35 p.m.
SEA
-
YHZ
1 stop8h 35m
WestJet
Wed 14/109:50 a.m.
YHZ
-
SEA
2 stops12h 55m
WestJet
Deal found 18/5C$ 491
Wed 14/107:35 p.m.
SEA
-
YHZ
2 stops11h 10m
WestJet
Tue 20/109:50 a.m.
YHZ
-
SEA
2 stops12h 55m
WestJet
Deal found 16/5C$ 497
Fri 4/97:35 p.m.
SEA
-
YHZ
2 stops11h 10m
WestJet
Fri 11/99:50 a.m.
YHZ
-
SEA
2 stops12h 55m
WestJet
Deal found 19/5C$ 499
Sun 16/87:00 a.m.
SEA
-
YHZ
1 stop10h 15m
WestJet
Tue 25/86:15 p.m.
YHZ
-
SEA
1 stop19h 25m
WestJet
Deal found 16/5C$ 519
Mon 10/87:35 p.m.
SEA
-
YHZ
1 stop8h 35m
WestJet
Thu 20/86:15 p.m.
YHZ
-
SEA
1 stop19h 25m
WestJet
Deal found 15/5C$ 524
Sun 12/77:35 p.m.
SEA
-
YHZ
1 stop8h 35m
WestJet
Sat 25/78:00 p.m.
YHZ
-
SEA
1 stop17h 40m
WestJet
Deal found 17/5C$ 525

Find flight deals from Seattle to Halifax

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Halifax (YHZ). 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 21 May 2026.

Round-trip from

C$ 477

One-way from

C$ 237

Popular in

December

Cheapest in

April

Average price

C$ 516
WestJet
  • WestJet
  • 29/8-7/9
  • 3 total stops
  • 21h 30m total
  • Seattle to Halifax
Search Deals
WestJet
  • WestJet
  • 21/7
  • 1 total stop
  • 10h 15m total
  • Seattle to Halifax
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (C$ 475 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (C$ 88 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Halifax 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 21 May 2026.
Use the filters below to find and compare flights from Seattle to Halifax that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Fri 25/9

8:00 a.m.-11:55 p.m.

2 stops11h 55m

Halifax Intl

Tue 29/9

2:05 p.m.-9:04 p.m.

1 stop10h 59m

C$ 580

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Fri 19/6

10:30 a.m.-9:25 p.m.

2 stops30h 55m

Halifax Intl

Thu 25/6

4:40 p.m.-9:40 a.m.

2 stops21h 00m

C$ 616

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Mon 22/6

7:00 a.m.-11:33 p.m.

2 stops12h 33m

Halifax Intl

Mon 6/7

4:40 p.m.-6:45 p.m.

2 stops30h 05m

C$ 645

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Sun 12/7

7:00 a.m.-11:00 a.m.

3 stops24h 00m

Halifax Intl

Sat 25/7

1:30 p.m.-9:40 a.m.

3 stops24h 10m

C$ 685

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Fri 3/7

5:00 a.m.-1:54 a.m.

2 stops16h 54m

Halifax Intl

Fri 10/7

6:00 a.m.-9:07 p.m.

1 stop19h 07m

C$ 737

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Fri 19/6

7:00 a.m.-9:15 p.m.

1 stop10h 15m

Halifax Intl

Thu 25/6

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

1 stop9h 25m

C$ 741
Quickest round-trip

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Sat 1/8

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

1 stop8h 35m

Halifax Intl

Fri 7/8

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

1 stop9h 25m

C$ 762
Cheapest one-way
Quickest one-way

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Fri 5/6

11:20 p.m.-11:46 a.m.

1 stop8h 26m

C$ 256

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Thu 23/7

8:00 a.m.-12:39 a.m.

1 stop12h 39m

C$ 286

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Sun 19/7

7:00 a.m.-4:10 p.m.

3 stops29h 10m

C$ 304

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/5

Showing 1-10 of 13 resultsSorted by cheapest first
1
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Best time to book a flight from Seattle to Halifax

Have a flexible travel schedule? Discover the best time to fly to Halifax from Seattle 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 Seattle to Halifax

How far ahead should I book a flight from Seattle to Halifax?

The best time to book flights from Seattle to Halifax is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Related info for your journey

Find useful and relevant information for your journey from Seattle to Halifax. 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 Seattle to Halifax?

    For as low as C$ 580, Air Canada can have you in Halifax from Seattle in 11h 55m. Airlines will cover a distance of 4424 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

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

See more FAQs

Travelling to a place near Halifax?

Book flights to Halifax if you plan to visit one of these locations
Dartmouth
Truro
Enfield
Bridgewater
Lunenburg
Windsor
Mahone Bay

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Halifax

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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

When you search for this flight from Seattle to Halifax, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to Halifax from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Halifax from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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