$90 Cheap Flights from Dallas (DFW) to Seattle (SEA)

View $90 flight on Sun, Aug 31, 2025Opens in a new window

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

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Cheap Flights from Dallas to Seattle (DFW-SEA)

Prices were available within the past 7 days and start at $90 for one-way flights and $185 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Aug 12 - Wed, Aug 13
DFW
Dallas
SEA
Seattle
$185 Roundtrip, found 6 hours ago
$185
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Tue, Aug 12 from Dallas to Seattle, returning Wed, Aug 13, priced at $185 found 6 hours ago
Alaska Airlines
Sat, Aug 9 - Wed, Aug 13
DFW
Dallas
SEA
Seattle
$191 Roundtrip, just found
$191
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Aug 9 from Dallas to Seattle, returning Wed, Aug 13, priced at $191 just found
Delta
Tue, Aug 12 - Sat, Aug 16
DFW
Dallas
SEA
Seattle
$194 Roundtrip, found 3 hours ago
$194
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Aug 12 from Dallas to Seattle, returning Sat, Aug 16, priced at $194 found 3 hours ago
Delta
Sun, Aug 31 - Wed, Sep 3
DFW
Dallas
SEA
Seattle
$199 Roundtrip, found 5 hours ago
$199
Roundtrip
found 5 hours ago
Select Delta flight, departing Sun, Aug 31 from Dallas to Seattle, returning Wed, Sep 3, priced at $199 found 5 hours ago
Delta
Sun, Aug 31 - Wed, Sep 3
DFW
Dallas
SEA
Seattle
$201 Roundtrip, found 5 hours ago
$201
Roundtrip
found 5 hours ago
Select Delta flight, departing Sun, Aug 31 from Dallas to Seattle, returning Wed, Sep 3, priced at $201 found 5 hours ago
Alaska Airlines
Tue, Aug 12 - Tue, Aug 26
DFW
Dallas
SEA
Seattle
$205 Roundtrip, just found
$205
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Aug 12 from Dallas to Seattle, returning Tue, Aug 26, priced at $205 just found
Delta
Sat, Aug 16 - Wed, Aug 20
DFW
Dallas
SEA
Seattle
$207 Roundtrip, found 3 hours ago
$207
Roundtrip
found 3 hours ago
Select Delta flight, departing Sat, Aug 16 from Dallas to Seattle, returning Wed, Aug 20, priced at $207 found 3 hours ago
Southwest Airlines
Tue, Aug 12 - Wed, Aug 13
DAL
Dallas
SEA
Seattle
$211 Roundtrip, found 9 hours ago
$211
Roundtrip
found 9 hours ago
Select Southwest Airlines flight, departing Tue, Aug 12 from Dallas to Seattle, returning Wed, Aug 13, priced at $211 found 9 hours ago
Frontier Airlines
Mon, Aug 11 - Fri, Aug 15
DFW
Dallas
SEA
Seattle
$239 Roundtrip, just found
$239
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Aug 11 from Dallas to Seattle, returning Fri, Aug 15, priced at $239 just found
United
Tue, Aug 12 - Tue, Aug 26
DFW
Dallas
SEA
Seattle
$239 Roundtrip, just found
$239
Roundtrip
just found
Select United flight, departing Tue, Aug 12 from Dallas to Seattle, returning Tue, Aug 26, priced at $239 just found

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

September is typically the cheapest month to fly

From $88 - $221 per traveler.

Graph displaying average flight prices per month

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Boeing Field BFI. Average driving time to city center is 10 minutes. Flights from $922
BFI
Boeing Field
Average driving time to city center10 min
Flights from $922
Flights from Dallas (DFW) to Seattle (SEA)
Origin airport
Dallas-Fort Worth Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Spirit Airlines, Sun Country Airlines, United
Roundtrip price
$179
Distance
1657 mi
Average flight time
2 hours 16 mins

Dallas to Seattle Flights

The cheapest times to fly from Dallas to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Dallas to Seattle are during the month of August. You can find some of the cheapest flights from Dallas to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Dallas to Seattle

Sunday is one of the best days to book for cheap flights from Dallas to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Dallas to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Dallas to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $90 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Dallas to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Dallas to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA) cost?
You can score cheap return tickets from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA) starting at $185. Book your seat and get ready to go. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving DFW on July 14 2025 and touching down at SEA. The price was last updated on June 22 2025 and has not changed since.
What is the cheapest month to fly from DFW to SEA?
The cheapest flights from DFW to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA)?
Enjoy a seamless journey to Seattle - Tacoma Intl. Airport (SEA). 4 airlines offer direct routes from Dallas-Fort Worth Intl. Airport (DFW), including:
  • American Airlines
  • Alaska Airlines
  • Delta Air Lines

What is the cheapest airline that flies from DFW to SEA?
At the moment, the cheapest carrier operating one-way flights from DFW to SEA is American Airlines. You can take off on this route from $90. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DFW on August 31 2025. Prices were last updated on June 22 2025 and have not changed since.
How many flights per day from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA)?
Every day on average, 12 direct flights operate from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA). Pick the departure time that best fits your itinerary.
What are the most popular departure times for flights from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA)?
More passengers fly between DFW and SEA at 7 AM than at any other point in the day. Looking to skip the crowds? Travel outside of rush hours and it's possible you'll save on your fare as well.
What day of the week has the most flights from DFW to SEA?
Friday has the most flights from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA). Consider traveling on this day and you'll have the best chance of finding a departure that fits your itinerary.
What is the earliest flight from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA)?
Catch the earliest flight at around 7:00AM UTC-6, heading out of Dallas-Fort Worth Intl. Airport (DFW). You'll be flying for approximately 4h 40m, reaching Seattle - Tacoma Intl. Airport (SEA) at approximately 9:40AM UTC-8.
How long does it take to fly from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA)?
The average flight duration from DFW to SEA is 4 hours and 32 minutes, covering a total distance of 1,650 mi.
What is the best time to fly from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA)?
To arrive at Seattle - Tacoma Intl. Airport (SEA) on time, book a flight that leaves from Dallas-Fort Worth Intl. Airport (DFW) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seattle from Dallas-Fort Worth Intl. Airport (DFW)?
Seattle - Tacoma Intl. Airport (SEA) is the only airport in Seattle with direct flights from Dallas-Fort Worth Intl. Airport (DFW). Browse your options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute bookings from DFW to SEA are generally more expensive. To secure the best rates, start looking for flights well in advance. That said, if your travel plans are flexible, you may score a cheap ticket right before your trip.
Is it cheaper to book a DFW to SEA flight and hotel package?
You'll generally save money by securing a DFW to SEA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras including car rentals, tours and activities.
Can I cancel or change the date of my flight from Dallas-Fort Worth Intl. Airport (DFW) to Seattle - Tacoma Intl. Airport (SEA)?
If you reserved your DFW to SEA flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

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