Cheap Flights from Dallas (DFW) to Seattle (SEA)

View AU$168 flight on Wed, 10 Dec. 2025Opens in a new window

Popular airlines from Dallas-Fort Worth International Airport (DFW) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Dallas (DFW) to Seattle (SEA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 24 Dec. - Thu, 1 Jan.
DFW
Dallas
SEA
Seattle
AU$305 Return, found 5 hours ago
AU$305
Return
found 5 hours ago
Select Delta flight, departing Wed, 24 Dec. from Dallas to Seattle, returning Thu, 1 Jan., priced at AU$305 found 5 hours ago
Alaska Airlines
Wed, 24 Dec. - Wed, 31 Dec.
DFW
Dallas
SEA
Seattle
AU$366 Return, found 5 hours ago
AU$366
Return
found 5 hours ago
Select Alaska Airlines flight, departing Wed, 24 Dec. from Dallas to Seattle, returning Wed, 31 Dec., priced at AU$366 found 5 hours ago
Alaska Airlines
Wed, 24 Dec. - Thu, 1 Jan.
DFW
Dallas
SEA
Seattle
AU$367 Return, found 5 hours ago
AU$367
Return
found 5 hours ago
Select Alaska Airlines flight, departing Wed, 24 Dec. from Dallas to Seattle, returning Thu, 1 Jan., priced at AU$367 found 5 hours ago
American Airlines
Wed, 24 Dec. - Thu, 1 Jan.
DFW
Dallas
SEA
Seattle
AU$373 Return, found 5 hours ago
AU$373
Return
found 5 hours ago
Select American Airlines flight, departing Wed, 24 Dec. from Dallas to Seattle, returning Thu, 1 Jan., priced at AU$373 found 5 hours ago
Delta
Wed, 24 Dec. - Sat, 3 Jan.
DFW
Dallas
SEA
Seattle
AU$389 Return, found 5 hours ago
AU$389
Return
found 5 hours ago
Select Delta flight, departing Wed, 24 Dec. from Dallas to Seattle, returning Sat, 3 Jan., priced at AU$389 found 5 hours ago
Alaska Airlines
Wed, 24 Dec. - Thu, 1 Jan.
DFW
Dallas
SEA
Seattle
AU$396 Return, found 5 hours ago
AU$396
Return
found 5 hours ago
Select Alaska Airlines flight, departing Wed, 24 Dec. from Dallas to Seattle, returning Thu, 1 Jan., priced at AU$396 found 5 hours ago
Delta
Wed, 24 Dec. - Fri, 2 Jan.
DFW
Dallas
SEA
Seattle
AU$403 Return, found 5 hours ago
AU$403
Return
found 5 hours ago
Select Delta flight, departing Wed, 24 Dec. from Dallas to Seattle, returning Fri, 2 Jan., priced at AU$403 found 5 hours ago
Alaska Airlines
Tue, 16 Sep. - Tue, 23 Sep.
DFW
Dallas
SEA
Seattle
AU$408 Return, found 4 days ago
AU$408
Return
found 4 days ago
Select Alaska Airlines flight, departing Tue, 16 Sep. from Dallas to Seattle, returning Tue, 23 Sep., priced at AU$408 found 4 days ago
Alaska Airlines
Wed, 24 Dec. - Sat, 3 Jan.
DFW
Dallas
SEA
Seattle
AU$421 Return, found 5 hours ago
AU$421
Return
found 5 hours ago
Select Alaska Airlines flight, departing Wed, 24 Dec. from Dallas to Seattle, returning Sat, 3 Jan., priced at AU$421 found 5 hours ago
United
Thu, 16 Oct. - Thu, 23 Oct.
DFW
Dallas
SEA
Seattle
AU$565 Return, found 12 hours ago
AU$565
Return
found 12 hours ago
Select United flight, departing Thu, 16 Oct. from Dallas to Seattle, returning Thu, 23 Oct., priced at AU$565 found 12 hours ago

Find the cheapest month to fly from Dallas (DFW) to Seattle (SEA)

January is typically the cheapest month to fly

From AU$146 - AU$435 per traveller.

Graph displaying average flight prices per month

Flight from Dallas to Seattle route information
Origin airport
Dallas-Fort Worth Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
AU$305
Distance
2651 km
Average flight time
2 hours 16 mins

Your quick guide to flights from Dallas to Seattle

Pick up great flights from Dallas to Seattle

With Expedia, you have your pick of 56 flights a day with 20 airlines covering flights from Dallas to Seattle. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Dallas to Seattle that take around 4 hours.

Find cheap flights from Dallas to Seattle

From the great flight deals with prices currently ranging from AU$305 to AU$565, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Dallas to Seattle around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Seattle is normally in December.

Reasons to book your flight from Dallas to Seattle with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Dallas to Seattle across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Seattle right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Dallas-Fort Worth Intl. Airport (DFW) to Sea-Tac Airport?
Based on fares offered within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from Dallas-Fort Worth Intl. Airport (DFW) to SEA start from AU$305. Make your booking ASAP to secure the best price for your exciting adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from DFW Airport to Seattle - Tacoma Intl. Airport (SEA)?
The majority of flights can be conveniently cancelled online, but whether you incur a fee all comes down to your airline. If you do have to cancel your getaway, follow the instructions in the Customer Service Portal.
How do I find cheap flights from DFW Airport to SEA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from DFW Airport to SEA?
Around 2 700 kilometres separates Dallas and SeaTac, so pack something to help you fill in a few hours. That gripping novel you haven't had time to finish will do the trick.
Which airlines fly direct from Dallas Airport to SEA?
American Airlines (AA) is one of the preferred choices for many travellers flying between Dallas-Fort Worth Intl. Airport (DFW) and SEA. Choose from the 173 flights it offers on this route each month. Operating 139 flights per month on this route, Alaska Airlines (AS) is another good option.
Are Dallas Airport to SEA flight tickets cheaper when they're purchased at the last minute?
Flight tickets from Dallas Airport to Seattle - Tacoma Intl. Airport (SEA) are available up to a year before departure on Expedia. And although you may score great last-minute deal, it's not something you should bank on. Also, booking your flights in advance means you'll have more options — and you can avoid getting stuck in the dreaded middle seat! We're constantly updating our fares to make sure you get the biggest bargains, so keep checking in for all the latest specials.

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