$136 Cheap Flights from Dallas (DFW) to Seattle (SEA)

View $136 flight on Sat, Aug 15, 2026Opens 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 $136 for one-way flights and $272 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Jun 30 - Sat, Jul 4
DFW
Dallas
SEA
Seattle
$272 Roundtrip, just found
$272
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Jun 30 from Dallas to Seattle, returning Sat, Jul 4, priced at $272 just found
Frontier Airlines
Wed, Jul 15 - Wed, Jul 22
DFW
Dallas
SEA
Seattle
$282 Roundtrip, just found
$282
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jul 15 from Dallas to Seattle, returning Wed, Jul 22, priced at $282 just found
Frontier Airlines
Sun, Aug 23 - Tue, Aug 25
DFW
Dallas
SEA
Seattle
$284 Roundtrip, just found
$284
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Aug 23 from Dallas to Seattle, returning Tue, Aug 25, priced at $284 just found
Frontier Airlines
Tue, Jun 23 - Wed, Jul 1
DFW
Dallas
SEA
Seattle
$287 Roundtrip, found 1 hour ago
$287
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, Jun 23 from Dallas to Seattle, returning Wed, Jul 1, priced at $287 found 1 hour ago
Frontier Airlines
Mon, Jun 22 - Wed, Jun 24
DFW
Dallas
SEA
Seattle
$290 Roundtrip, just found
$290
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Jun 22 from Dallas to Seattle, returning Wed, Jun 24, priced at $290 just found
Frontier Airlines
Sun, Aug 23 - Tue, Aug 25
DFW
Dallas
SEA
Seattle
$294 Roundtrip, just found
$294
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Aug 23 from Dallas to Seattle, returning Tue, Aug 25, priced at $294 just found
American Airlines
Sat, Aug 29 - Sat, Sep 5
DFW
Dallas
SEA
Seattle
$377 Roundtrip, found 2 hours ago
$377
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Aug 29 from Dallas to Seattle, returning Sat, Sep 5, priced at $377 found 2 hours ago
Delta
Sat, Aug 29 - Sat, Sep 5
DFW
Dallas
SEA
Seattle
$377 Roundtrip, found 2 hours ago
$377
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, Aug 29 from Dallas to Seattle, returning Sat, Sep 5, priced at $377 found 2 hours ago
United
Wed, May 27 - Fri, May 29
DFW
Dallas
SEA
Seattle
$396 Roundtrip, just found
$396
Roundtrip
just found
Select United flight, departing Wed, May 27 from Dallas to Seattle, returning Fri, May 29, priced at $396 just found
Sun Country Airlines
Fri, Jul 3 - Fri, Jul 10
DFW
Dallas
SEA
Seattle
$463 Roundtrip, found 9 hours ago
$463
Roundtrip
found 9 hours ago
Select Sun Country Airlines flight, departing Fri, Jul 3 from Dallas to Seattle, returning Fri, Jul 10, priced at $463 found 9 hours ago

Alternative airports near Seattle

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

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $326
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $326

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

May is typically the cheapest month to fly

From $180 - $300 per traveler.

Frequently asked questions

How much does a flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $136 and cheap return flights from $272 Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights usually range from $161 to $1050, and return flights typically cost between $239 and $1598. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
February is the cheapest month to fly from Dallas, TX (DFW) to Seattle, WA (SEA), with average return fares around $269. This is about 19% lower than the average price throughout the year, as February typically experiences lower travel demand after the holiday season. Other affordable months to fly from Dallas to Seattle include January and April.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
4 airlines operate nonstop service from DFW to SEA:

  • American Airlines operates around 62 direct flights from DFW to SEA every week
  • Delta operates around 14 direct flights from DFW to SEA every week
  • Qatar Airways operates around 22 direct flights from DFW to SEA every week
  • Hawaiian Airlines operates around 8 direct flights from DFW to SEA every week

How do I find cheap flights from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Dallas, TX (DFW) to Seattle, WA (SEA) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. American Airlines offers the most daily flights from DFW to SEA, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
For flights from Dallas (DFW) to Seattle (SEA), January and February are the best months to travel, with average return flight prices around $269. These months often see lower demand, which can lead to better fares and a more enjoyable travel experience.*Prices based on flights available on Expedia in the last year.
How many flights per day from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 11 nonstop flights per day from Dallas-Fort Worth Intl. (DFW) to Seattle - Tacoma Intl. (SEA). For more options, look at flights that include layovers.
What is the earliest flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically leaves at around 5:00 AM. This seasonal service is available in April, allowing you to start your day early in the Pacific Northwest. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Dallas (DFW) to Seattle (SEA) are in the early morning, from 6am to 9am. About 29% of passengers prefer this time window. Many major carriers, including American Airlines and United Airlines, offer flights during this window. This timing works well because it allows you to arrive in Seattle with a full day ahead of you.
How long does it take to fly from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying nonstop from DFW to SEA takes around 4 hours 30 minutes, with the route covering approximately 1,657 miles. Flights with a layover typically take 5 hours longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Business class seats are offered on the DFW to SEA route with American Airlines.First class cabins are available on:

  • United Airlines
  • American Airlines
  • Delta Air Lines

How much is a business class flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A direct, return business class ticket from Dallas (DFW) to Seattle (SEA) typically costs between $1,147 - $1,632. A non-stop, one-way business class flight is usually around $568 - $788. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Dallas-Fort Worth Intl. (DFW)?
From Dallas-Fort Worth Intl. (DFW), you can fly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like San Diego Intl. (SAN), Los Angeles Intl. (LAX), Denver Intl. (DEN) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) 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 ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Dallas-Fort Worth Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Sun Country Airlines, United
Roundtrip price
$272
Distance
1657 mi
Average flight time
2 hours 21 mins

Book with confidence

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 June. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $136 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.

 

Dallas to Seattle Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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