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Cheap flights from Seattle to Halifax from C$ 343

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 26/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YHZ
19 Feb — 26 Feb1
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 20 January 2026.

Tue 26/57:05 a.m.
SEA
-
YHZ
1 stop10h 10m
WestJet
Fri 5/610:00 a.m.
YHZ
-
SEA
2 stops14h 28m
WestJet
Deal found 17/1C$ 343
Fri 1/57:05 a.m.
SEA
-
YHZ
1 stop10h 10m
WestJet
Fri 8/57:40 a.m.
YHZ
-
SEA
1 stop9h 28m
WestJet
Deal found 18/1C$ 360
Mon 1/67:05 a.m.
SEA
-
YHZ
1 stop10h 10m
WestJet
Mon 8/610:00 a.m.
YHZ
-
SEA
2 stops14h 28m
WestJet
Deal found 18/1C$ 375
Sat 23/57:05 a.m.
SEA
-
YHZ
1 stop8h 05m
WestJet
Sun 31/58:00 p.m.
YHZ
-
SEA
1 stop28h 28m
WestJet
Deal found 19/1C$ 414

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 20 January 2026.

Round-trip from

C$ 360

Popular in

December

Cheapest in

April

Average price

C$ 498
WestJet
  • WestJet
  • 1/5-8/5
  • 2 total stops
  • 19h 38m total
  • Seattle to Halifax
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 189 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 80 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 20 January 2026.
Use the filters below to find and compare flights from Seattle to Halifax that are best for you.

Fly from

Seattle

Fly to

Halifax

Route

Depart

Return

Price

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Fri 1/5

7:05 a.m.-9:15 p.m.

1 stop10h 10m

Halifax Intl

Fri 8/5

3:30 p.m.-8:28 p.m.

1 stop8h 58m

C$ 361

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Mon 1/6

7:05 a.m.-9:15 p.m.

1 stop10h 10m

Halifax Intl

Mon 8/6

10:00 a.m.-8:28 p.m.

2 stops14h 28m

C$ 375

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Sat 23/5

7:05 a.m.-7:10 p.m.

1 stop8h 05m

Halifax Intl

Sun 31/5

8:00 p.m.-8:28 p.m.

1 stop28h 28m

C$ 414

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/1

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?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Halifax. Price data was last updated on 16 January 2026.

The best time to book flights from Seattle to Halifax is 60 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.

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$ 361, WestJet can have you in Halifax from Seattle in 10h 10m. Airlines will cover a distance of 4424 km.

  • 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
Truro
Dartmouth
Bridgewater
Enfield
Lunenburg
Windsor
Mahone Bay

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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

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 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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