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Cheap flights from Seattle to Halifax from C$ 646

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YHZ
10 Dec — 17 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Halifax Intl are usually found in April or September, booked 62 days in advance, depart on a Monday or Tuesday and return on a Sunday

Find 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 10 November 2025.

Wed 17/128:17 a.m.SEA - YHZ
2 stops22h 33mMultiple Airlines
Sat 10/18:20 a.m.YHZ - SEA
1 stop10h 18mMultiple Airlines
Deal found 9/11C$ 683
Wed 17/123:10 p.m.SEA - YHZ
2 stops10h 53mWestJet
Sat 10/16:55 a.m.YHZ - SEA
2 stops35h 25mWestJet
Deal found 9/11C$ 729
Wed 26/117:57 a.m.SEA - YHZ
1 stop22h 53mMultiple Airlines
Sun 30/1111:10 a.m.YHZ - SEA
2 stops35h 36mMultiple Airlines
Deal found 8/11C$ 829
Mon 1/1211:20 p.m.SEA - YHZ
2 stops21h 02mAmerican Airlines
Mon 15/126:30 a.m.YHZ - SEA
2 stops20h 55mAmerican Airlines
Deal found 8/11C$ 955
Mon 1/128:10 a.m.SEA - YHZ
1 stop10h 01mAir Canada
Mon 15/127:00 a.m.YHZ - SEA
1 stop19h 16mAir Canada
Deal found 9/11C$ 979
Tue 23/126:33 p.m.SEA - YHZ
2 stops27h 08mMultiple Airlines
Tue 30/126:55 a.m.YHZ - SEA
1 stop31h 50mMultiple Airlines
Deal found 7/11C$ 1,021
Wed 24/123:10 p.m.SEA - YHZ
2 stops10h 53mWestJet
Wed 31/128:20 a.m.YHZ - SEA
1 stop10h 00mWestJet
Deal found 9/11C$ 1,059

Cheap 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 10 November 2025.

Round-trip from

C$ 646

Popular in

December

Cheapest in

April

Average price

C$ 941
WestJet
  • WestJet
  • 20/4-26/4
  • 3 total stops
  • 41h 20m total
  • Seattle to Halifax
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 286 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 58 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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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 10 November 2025.
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

Mon 20/4

3:10 p.m.-6:02 a.m.

2 stops10h 52m

Halifax Intl

Sun 26/4

6:00 p.m.-8:28 p.m.

1 stop30h 28m

C$ 646

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Mon 20/4

11:05 p.m.-1:54 p.m.

1 stop10h 49m

Halifax Intl

Sun 26/4

7:00 a.m.-9:51 p.m.

1 stop18h 51m

C$ 663

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Wed 17/12

8:17 a.m.-10:50 a.m.

2 stops22h 33m

Halifax Intl

Sat 10/1

8:20 a.m.-2:38 p.m.

1 stop10h 18m

C$ 683

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Wed 17/12

3:10 p.m.-6:03 a.m.

2 stops10h 53m

Halifax Intl

Sat 10/1

6:55 a.m.-2:20 p.m.

2 stops35h 25m

C$ 729

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Wed 26/11

7:57 a.m.-10:50 a.m.

1 stop22h 53m

Halifax Intl

Sun 30/11

11:10 a.m.-6:46 p.m.

2 stops35h 36m

C$ 829

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Mon 20/4

11:55 a.m.-7:28 a.m.

2 stops15h 33m

Halifax Intl

Sun 26/4

11:00 p.m.-8:28 p.m.

3 stops25h 28m

C$ 843

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Mon 1/12

11:20 p.m.-12:22 a.m.

2 stops21h 02m

Halifax Intl

Mon 15/12

6:30 a.m.-11:25 p.m.

2 stops20h 55m

C$ 955

SeattleHalifax

SEA - YHZ

SEAYHZ

Seattle/Tacoma Intl

Mon 1/12

8:10 a.m.-10:11 p.m.

1 stop10h 01m

Halifax Intl

Mon 15/12

5:05 a.m.-10:16 p.m.

1 stop21h 11m

C$ 979

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/11

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 7 November 2025.

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.

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

Currently, May is the cheapest month in which you can book a flight from Seattle to Halifax (average of C$ 271). Flying from Seattle to Halifax in February is currently the most expensive (average of C$ 1,108). 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.

What is the cheapest time of day to fly from SEA to YHZ?

Find hourly flight availability from Seattle to Halifax. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 November 2025.

One of the essential ways to save on airfare from Seattle to Halifax is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 21% on airfare.

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$ 663, WestJet can have you in Halifax from Seattle in 10h 49m. 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.

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

    Currently, May is the cheapest month in which you can book a flight from Seattle to Halifax (average of C$ 271). Flying from Seattle to Halifax in February is currently the most expensive (average of C$ 1,108). 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 Halifax?

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

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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?

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