What is the cheapest airline that flies from Halifax Intl to Seattle/Tacoma Intl?

Delta, United Airlines, and WestJet are the most popular carriers operating from Halifax Intl to Seattle/Tacoma Intl

When did momondo last update prices for flights from Halifax Intl Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Halifax Intl Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Halifax Intl Airport to Seattle/Tacoma Intl Airport?

As of November 2026, there are 2 operators available to choose from for flights from Halifax Intl Airport to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from Halifax Intl Airport to Seattle/Tacoma Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Halifax Intl Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$218 Cheap Flights from Halifax to Seattle in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Halifax to Seattle

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 1:40 pmYHZ Halifax Intl-SEA Seattle/Tacoma Intl

11h 10m1 stop Calgary

2:30 pm - 5:05 amSEA Seattle/Tacoma Intl-YHZ Halifax Intl

10h 35m2 stops Calgary Edmonton

$280WestJet

Wed, Dec 9 - Fri, Dec 11

6:30 am - 1:40 pmYHZ Halifax Intl-SEA Seattle/Tacoma Intl

11h 10m1 stop Calgary

2:30 pm - 5:05 amSEA Seattle/Tacoma Intl-YHZ Halifax Intl

10h 35m2 stops Calgary Edmonton

$281WestJet

Wed, Nov 18 - Fri, Dec 11

6:30 am - 1:40 pmYHZ Halifax Intl-SEA Seattle/Tacoma Intl

11h 10m1 stop Calgary

2:30 pm - 5:05 amSEA Seattle/Tacoma Intl-YHZ Halifax Intl

10h 35m2 stops Calgary Edmonton

$294WestJet

Sun, Jan 24 - Fri, Jan 29

6:30 am - 1:40 pmYHZ Halifax Intl-SEA Seattle/Tacoma Intl

11h 10m1 stop Calgary

2:30 pm - 5:40 amSEA Seattle/Tacoma Intl-YHZ Halifax Intl

11h 10m1 stop Calgary

$300WestJet

Sun, Jan 24 - Fri, Jan 29

2:10 pm - 9:49 amYHZ Halifax Intl-SEA Seattle/Tacoma Intl

23h 39m2 stops Newark Denver Intl

5:00 am - 1:24 pmSEA Seattle/Tacoma Intl-YHZ Halifax Intl

28h 24m2 stops Denver Intl Newark

$301United Airlines

Sun, Jan 24 - Fri, Jan 29

1:49 pm - 10:06 amYHZ Halifax Intl-SEA Seattle/Tacoma Intl

24h 17m2 stops Newark Denver Intl

2:00 pm - 2:34 pmSEA Seattle/Tacoma Intl-YHZ Halifax Intl

20h 34m2 stops Houston George Bush Intcntl Newark

$301United Airlines

Tue, Mar 23 - Tue, Mar 30

1:49 pm - 1:04 pmYHZ Halifax Intl-SEA Seattle/Tacoma Intl

27h 15m2 stops Newark Houston George Bush Intcntl

7:03 am - 1:08 pmSEA Seattle/Tacoma Intl-YHZ Halifax Intl

26h 05m2 stops Houston George Bush Intcntl Newark

$301United Airlines

Tue, Mar 16 - Tue, Mar 23

6:30 am - 1:40 pmYHZ Halifax Intl-SEA Seattle/Tacoma Intl

11h 10m1 stop Calgary

2:30 pm - 5:40 amSEA Seattle/Tacoma Intl-YHZ Halifax Intl

11h 10m1 stop Calgary

$393Delta

Sun, Nov 22 - Thu, Dec 10

6:30 am - 1:40 pmYHZ Halifax Intl-SEA Seattle/Tacoma Intl

11h 10m1 stop Calgary

2:30 pm - 5:40 amSEA Seattle/Tacoma Intl-YHZ Halifax Intl

11h 10m1 stop Calgary

$402Delta

Mon, Nov 23 - Thu, Dec 10

6:00 am - 6:37 pmYHZ Halifax Intl-SEA Seattle/Tacoma Intl

16h 37m2 stops Toronto Pearson Intl Detroit Metropolitan Wayne County

2:30 pm - 5:40 amSEA Seattle/Tacoma Intl-YHZ Halifax Intl

11h 10m1 stop Calgary

$417Delta

Tue, Nov 17 - Fri, Dec 11

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Air Canada flights from Halifax to Seattle

Our best Air Canada deals on Halifax to Seattle flight tickets

Air Canada

Mar 16

YHZ1:45 pmHalifax Intl

12h 10m

2 stops

SEA9:55 pmSeattle/Tacoma Intl

Mar 23

SEA7:45 amSeattle/Tacoma Intl

8h 03m

1 stop

YHZ7:48 pmHalifax Intl

$304

Air Canada

Nov 19

YHZ5:10 amHalifax Intl

13h 27m

2 stops

SEA2:37 pmSeattle/Tacoma Intl

Dec 8

SEA7:45 amSeattle/Tacoma Intl

8h 23m

1 stop

YHZ8:08 pmHalifax Intl

$312

Air Canada

Dec 3

YHZ7:15 amHalifax Intl

17h 44m

2 stops

SEA8:59 pmSeattle/Tacoma Intl

Dec 8

SEA8:40 amSeattle/Tacoma Intl

13h 18m

2 stops

YHZ1:58 amHalifax Intl

$315

United Airlines flights from Halifax to Seattle

Our best United Airlines deals on Halifax to Seattle flight tickets

United Airlines

Mar 23

YHZ1:49 pmHalifax Intl

24h 17m

2 stops

SEA10:06 amSeattle/Tacoma Intl

Mar 30

SEA2:00 pmSeattle/Tacoma Intl

20h 34m

2 stops

YHZ2:34 pmHalifax Intl

$301

United Airlines

Nov 21

YHZ10:15 amHalifax Intl

15h 56m

1 stop

SEA10:11 pmSeattle/Tacoma Intl

Dec 9

SEA11:33 pmSeattle/Tacoma Intl

9h 51m

1 stop

YHZ1:24 pmHalifax Intl

$376

United Airlines

Nov 23

YHZ5:00 amHalifax Intl

18h 03m

2 stops

SEA7:03 pmSeattle/Tacoma Intl

Dec 10

SEA11:25 pmSeattle/Tacoma Intl

9h 59m

1 stop

YHZ1:24 pmHalifax Intl

$384

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

HalifaxSeattle

YHZ Halifax Intl - SEA Seattle/Tacoma Intl

YHZSEA

Halifax Intl

Wed 12/9

6:30 am-1:40 pm

1 stop11h 10m

Seattle/Tacoma Intl

Fri 12/11

2:30 pm-5:05 am

2 stops10h 35m

$280

HalifaxSeattle

YHZ Halifax Intl - SEA Seattle/Tacoma Intl

YHZSEA

Halifax Intl

Wed 11/18

6:30 am-1:40 pm

1 stop11h 10m

Seattle/Tacoma Intl

Fri 12/11

2:30 pm-5:05 am

2 stops10h 35m

$281

HalifaxSeattle

YHZ Halifax Intl - SEA Seattle/Tacoma Intl

YHZSEA

Halifax Intl

Sun 1/24

6:30 am-1:40 pm

1 stop11h 10m

Seattle/Tacoma Intl

Fri 1/29

2:30 pm-5:05 am

2 stops10h 35m

$294

HalifaxSeattle

YHZ Halifax Intl - SEA Seattle/Tacoma Intl

YHZSEA

Halifax Intl

Sun 1/24

6:30 am-1:40 pm

1 stop11h 10m

Seattle/Tacoma Intl

Fri 1/29

2:30 pm-5:40 am

1 stop11h 10m

$300

HalifaxSeattle

YHZ Halifax Intl - SEA Seattle/Tacoma Intl

YHZSEA

Halifax Intl

Sun 1/24

2:10 pm-9:49 am

2 stops23h 39m

Seattle/Tacoma Intl

Fri 1/29

5:00 am-1:24 pm

2 stops28h 24m

$301

HalifaxSeattle

YHZ Halifax Intl - SEA Seattle/Tacoma Intl

YHZSEA

Halifax Intl

Tue 3/23

1:49 pm-10:06 am

2 stops24h 17m

Seattle/Tacoma Intl

Tue 3/30

2:00 pm-2:34 pm

2 stops20h 34m

$301

HalifaxSeattle

YHZ Halifax Intl - SEA Seattle/Tacoma Intl

YHZSEA

Halifax Intl

Tue 3/16

1:49 pm-1:04 pm

2 stops27h 15m

Seattle/Tacoma Intl

Tue 3/23

7:03 am-1:08 pm

2 stops26h 05m

$301

HalifaxSeattle

YHZ Halifax Intl - SEA Seattle/Tacoma Intl

YHZSEA

Halifax Intl

Sun 11/22

6:30 am-1:40 pm

1 stop11h 10m

Seattle/Tacoma Intl

Thu 12/10

2:30 pm-5:40 am

1 stop11h 10m

$393

HalifaxSeattle

YHZ Halifax Intl - SEA Seattle/Tacoma Intl

YHZSEA

Halifax Intl

Mon 11/23

6:30 am-1:40 pm

1 stop11h 10m

Seattle/Tacoma Intl

Thu 12/10

2:30 pm-5:40 am

1 stop11h 10m

$402

HalifaxSeattle

YHZ Halifax Intl - SEA Seattle/Tacoma Intl

YHZSEA

Halifax Intl

Tue 11/17

6:00 am-6:37 pm

2 stops16h 37m

Seattle/Tacoma Intl

Fri 12/11

2:30 pm-5:40 am

1 stop11h 10m

$417

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Halifax to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Seattle?

In general, August is the cheapest month to fly from Halifax to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $278. If you don’t want to visit Seattle in August, then you should wait until May to fly from Halifax, when ticket prices are also cheap, with an average price of $337.

When to book flights from Halifax to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Halifax to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Halifax to Seattle (YHZ to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Halifax to Seattle

Best Price Found	$218
Fastest flight time	11h 10m
Direct flights	None

The best one-way flight to Seattle from Halifax in the past 72 hours is $218. The best round-trip flight deal from Halifax to Seattle found on momondo in the last 72 hours is $280.

The fastest flight from Halifax to Seattle takes 11h 10m

There are no direct flights from Halifax to Seattle. There are no popular flight routes from Halifax to Seattle.

Search flight deals

Frequently asked questions about flying from Halifax to Seattle

How far is Halifax Intl to Seattle/Tacoma Intl by plane?
The straight-line distance from Halifax Intl to Seattle/Tacoma Intl is 2751.5 mi. 11h 10m is a normal flight duration for this route.
When did momondo last update prices for flights from Halifax Intl Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Halifax Intl Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Halifax Intl Airport to Seattle/Tacoma Intl Airport?
As of November 2026, there are 2 operators available to choose from for flights from Halifax Intl Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Halifax Intl Airport to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Halifax Intl Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Halifax to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Halifax to Seattle is WestJet (67% of total bookings). The next most popular airline is Delta (33%).

Best airlines flying from Halifax to Seattle

Compare and see reviews for airlines that fly from Halifax to Seattle with momondo

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom $218	Free Cancellation	Rating 7.2 3,441 reviews		Search WestJet flights
Delta	PriceFrom $369	Free Cancellation	Rating 7.8 8,698 reviews		Search Delta flights

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Marysville

Lacey

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Why use momondo?

Why should I use momondo to find a flight deal from Halifax to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Halifax.

Can I find flights from Halifax to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Halifax which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Halifax to Seattle?

Once all potential Halifax to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Halifax to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Halifax to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.