£135 Cheap Flights from Seattle (SEA) to Dallas (DFW)

View £135 flight on Tue, 19 May 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at £135 for one-way flights and £259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 6 May - Sat, 9 May
SEA
Seattle
DFW
Dallas
£259 Return, found 5 days ago
£259
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 6 May from Seattle to Dallas, returning Sat, 9 May, priced at £259 found 5 days ago
Alaska Airlines
Wed, 6 May - Sat, 9 May
SEA
Seattle
DFW
Dallas
£274 Return, found 5 days ago
£274
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 6 May from Seattle to Dallas, returning Sat, 9 May, priced at £274 found 5 days ago
Alaska Airlines
Wed, 14 Oct - Wed, 21 Oct
SEA
Seattle
DFW
Dallas
£281 Return, found 16 hours ago
£281
Return
found 16 hours ago
Select Alaska Airlines flight, departing Wed, 14 Oct from Seattle to Dallas, returning Wed, 21 Oct, priced at £281 found 16 hours ago
Alaska Airlines
Wed, 6 May - Sat, 9 May
SEA
Seattle
DFW
Dallas
£288 Return, found 5 days ago
£288
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 6 May from Seattle to Dallas, returning Sat, 9 May, priced at £288 found 5 days ago
Alaska Airlines
Wed, 29 Apr - Wed, 6 May
SEA
Seattle
DFW
Dallas
£295 Return, found 4 days ago
£295
Return
found 4 days ago
Select Alaska Airlines flight, departing Wed, 29 Apr from Seattle to Dallas, returning Wed, 6 May, priced at £295 found 4 days ago
Alaska Airlines
Wed, 6 May - Sat, 9 May
SEA
Seattle
DFW
Dallas
£300 Return, found 5 days ago
£300
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 6 May from Seattle to Dallas, returning Sat, 9 May, priced at £300 found 5 days ago
Alaska Airlines
Mon, 1 Jun - Mon, 8 Jun
SEA
Seattle
DFW
Dallas
£300 Return, found 10 hours ago
£300
Return
found 10 hours ago
Select Alaska Airlines flight, departing Mon, 1 Jun from Seattle to Dallas, returning Mon, 8 Jun, priced at £300 found 10 hours ago
Alaska Airlines
Sat, 23 May - Sat, 30 May
SEA
Seattle
DFW
Dallas
£304 Return, found 1 day ago
£304
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 23 May from Seattle to Dallas, returning Sat, 30 May, priced at £304 found 1 day ago
Alaska Airlines
Sat, 23 May - Sat, 30 May
SEA
Seattle
DFW
Dallas
£305 Return, found 1 day ago
£305
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 23 May from Seattle to Dallas, returning Sat, 30 May, priced at £305 found 1 day ago
Alaska Airlines
Fri, 29 May - Thu, 4 Jun
SEA
Seattle
DFW
Dallas
£309 Return, found 13 hours ago
£309
Return
found 13 hours ago
Select Alaska Airlines flight, departing Fri, 29 May from Seattle to Dallas, returning Thu, 4 Jun, priced at £309 found 13 hours ago

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

May is typically the cheapest month to fly

From £121 - £175 per traveller.

Frequently asked questions

How much is a flight from Sea-Tac Airport to Dallas-Fort Worth Intl. Airport (DFW)?
Based on fares listed within the last 7 days on Expedia for flights departing within the next year, round-trip flights between SEA and DFW Airport start from £259. Make your booking today to secure the best price for your 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 SEA to DFW?
The majority of flights can be cancelled online, but every airline has a different set of terms and conditions. If you do need to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from Sea-Tac Airport to Dallas Airport 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 Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW)?
Around 2,700 kilometres separates SeaTac and Dallas, so pack some in-flight entertainment to help you while away a few hours. That novel you haven't finished will be just the ticket.
Which airlines fly direct from SEA to Dallas-Fort Worth Intl. Airport (DFW)?
A leading airline that operates on the route from Seattle - Tacoma Intl. Airport (SEA) to DFW Airport is American Airlines (AA). It offers 169 monthly flights. Offering 139 flights each month along this route, Alaska Airlines (AS) is another good choice.
Are Seattle - Tacoma Intl. Airport (SEA) to Dallas-Fort Worth Intl. Airport (DFW) flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from SEA to DFW Airport can be hit-or-miss. You might be lucky and score a bargain, but then again, you could miss out entirely! If you'd prefer to start planning your trip ahead of time, Expedia compares flight deals up to a year in advance. Just keep in mind that not all airlines issue their prices that far in advance. Our suggestion? Check back often as prices are updated regularly.

Travel information

0
Origin airport
Seattle - Tacoma Intl.
Destination airport
Dallas-Fort Worth Intl.
Airlines serving
Alaska Airlines
Return price
£259
Distance
2651 km

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