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

View $90 flight on Sat, Aug 30, 2025Opens in a new window

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

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Cheap Flights from Seattle to Dallas (SEA-DFW)

Prices were available within the past 7 days and start at $90 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Aug 30 - Sun, Aug 31
SEA
Seattle
DFW
Dallas
$179 Roundtrip, found 2 hours ago
$179
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Sat, Aug 30 from Seattle to Dallas, returning Sun, Aug 31, priced at $179 found 2 hours ago
Alaska Airlines
Wed, Aug 13 - Tue, Aug 26
SEA
Seattle
DFW
Dallas
$184 Roundtrip, found 5 days ago
$184
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Aug 13 from Seattle to Dallas, returning Tue, Aug 26, priced at $184 found 5 days ago
Southwest Airlines
Sat, Aug 30 - Tue, Sep 9
SEA
Seattle
DAL
Dallas
$195 Roundtrip, found 7 hours ago
$195
Roundtrip
found 7 hours ago
Select Southwest Airlines flight, departing Sat, Aug 30 from Seattle to Dallas, returning Tue, Sep 9, priced at $195 found 7 hours ago
Bargain Flight
Sun, Aug 31 - Tue, Sep 2
SEA
Seattle
DFW
Dallas
$198 Roundtrip, just found
$198
Roundtrip
just found
Select Bargain Flight flight, departing Sun, Aug 31 from Seattle to Dallas, returning Tue, Sep 2, priced at $198 just found
Alaska Airlines
Sun, Aug 31 - Tue, Sep 2
SEA
Seattle
DFW
Dallas
$199 Roundtrip, just found
$199
Roundtrip
just found
Select Alaska Airlines flight, departing Sun, Aug 31 from Seattle to Dallas, returning Tue, Sep 2, priced at $199 just found
Southwest Airlines
Sat, Aug 30 - Tue, Sep 9
SEA
Seattle
DAL
Dallas
$200 Roundtrip, found 7 hours ago
$200
Roundtrip
found 7 hours ago
Select Southwest Airlines flight, departing Sat, Aug 30 from Seattle to Dallas, returning Tue, Sep 9, priced at $200 found 7 hours ago
Delta
Thu, Nov 27 - Wed, Dec 3
SEA
Seattle
DFW
Dallas
$201 Roundtrip, found 4 days ago
$201
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Nov 27 from Seattle to Dallas, returning Wed, Dec 3, priced at $201 found 4 days ago
Southwest Airlines
Sat, Aug 30 - Tue, Sep 9
SEA
Seattle
DAL
Dallas
$205 Roundtrip, found 7 hours ago
$205
Roundtrip
found 7 hours ago
Select Southwest Airlines flight, departing Sat, Aug 30 from Seattle to Dallas, returning Tue, Sep 9, priced at $205 found 7 hours ago
Frontier Airlines
Fri, Aug 1 - Mon, Aug 4
SEA
Seattle
DFW
Dallas
$206 Roundtrip, found 1 hour ago
$206
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Aug 1 from Seattle to Dallas, returning Mon, Aug 4, priced at $206 found 1 hour ago
Alaska Airlines
Sat, Aug 30 - Sun, Aug 31
SEA
Seattle
DFW
Dallas
$209 Roundtrip, found 2 hours ago
$209
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Sat, Aug 30 from Seattle to Dallas, returning Sun, Aug 31, priced at $209 found 2 hours ago

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

January is typically the cheapest month to fly

From $91 - $278 per traveler.

Graph displaying average flight prices per month

Flights from Seattle (SEA) to Dallas (DFW)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Dallas-Fort Worth Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Spirit Airlines, Sun Country Airlines, United
Roundtrip price
$179
Distance
1657 mi
Average flight time
5 hours 56 mins

Seattle to Dallas Flights

The cheapest times to fly from Seattle to Dallas

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 Seattle to Dallas are during the month of August. You can find some of the cheapest flights from Seattle to Dallas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Dallas

Sunday is one of the best days to book for cheap flights from Seattle to Dallas: 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 Seattle to Dallas

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 Seattle to Dallas 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 Seattle to Dallas 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 Seattle to Dallas 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 Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW) cost?
Cheap return fares from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW) start at $178. 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 Frontier Airlines flight leaving SEA on July 18 2025 and touching down at DFW. The price was last updated on July 1 2025 and has not changed since.
What is the cheapest month to fly from SEA to DFW?
The cheapest flights from SEA to DFW 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 Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW)?
You can choose from 4 airlines that fly direct from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW). Including:

  • American Airlines
  • Alaska Airlines
  • Delta Air Lines

What is the cheapest airline that flies from SEA to DFW?
Jet off from SEA to DFW with Frontier Airlines. This airline currently offers the lowest one-way fare on this route, starting at $89. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SEA on August 18 2025. Prices were last updated on July 1 2025 and have not changed since.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW)?
With an average of 12 nonstop flights that operate from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW) every day, you'll be up in the air in no time.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW)?
More people fly between SEA and DFW at 10 AM than at any other point in the day. Rather go when it's quieter? Try choosing a quieter departure window and you're likely to save on your fare as well.
What day of the week has the most flights from SEA to DFW?
Jet off on a Friday if you're looking for the biggest selection of flights from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW)?
Take the earliest flight at around 12:45AM UTC-8, departing from Seattle - Tacoma Intl. Airport (SEA). You'll be traveling for approximately 3h 53m, arriving at Dallas-Fort Worth Intl. Airport (DFW) at approximately 6:38AM UTC-6.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW)?
It takes roughly 3 hours and 56 minutes to fly the 1,650 mi from SEA to DFW.
What airline has the least delays from SEA to DFW?
With 100% of journeys typically landing on schedule, Delta Air Lines has the best on-time performance for direct flights from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW). To keep track of your flight status and receive notifications about any changes, use the Expedia App.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW)?
To touch down at Dallas-Fort Worth Intl. Airport (DFW) on time, opt for a flight that leaves from Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Dallas from Seattle - Tacoma Intl. Airport (SEA)?
You can land at Dallas-Fort Worth Intl. Airport (DFW) or Love Field Airport (DAL) when you travel to Dallas on a direct flight from Seattle - Tacoma Intl. Airport (SEA).
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW) last-minute?
Last-minute fares from SEA to DFW are generally more expensive. To lock in the best rates, start looking for flights well ahead of time. That said, if you're flexible with your travel dates, it's possible to find a cheap ticket right before you leave.
Is it cheaper to book a SEA to DFW flight and hotel package?
Opting for a SEA to DFW flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our wide range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW)?
Typically, you can cancel or reschedule your SEA to DFW flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you want further details, go to our Customer Service portal.

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