Cheap flights from Seattle to Dallas/Fort Worth Airport from £120

SEA — DFW
13 Dec — 20 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dallas/Fort Worth are usually found in January or March, booked 57 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Seattle to Dallas/Fort Worth

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Dallas/Fort Worth

Thu 3/1200:30 -
Nonstop3h 50m
Fri 4/1209:30 -
Nonstop4h 42m
Deal found 8/11£228
Wed 2/1200:30 -
Nonstop3h 50m
Mon 7/1206:00 -
Nonstop4h 41m
Deal found 9/11£232
Thu 3/1211:50 -
1 stop10h 26m
Mon 7/1217:00 -
Nonstop4h 35m
Deal found 9/11£239
Tue 8/1217:51 -
1 stop18h 15m
Tue 15/1209:30 -
Nonstop4h 42m
Deal found 10/11£242
Thu 3/1214:30 -
1 stop7h 00m
Fri 4/1210:40 -
1 stop7h 42m
Deal found 10/11£243
Mon 28/1218:25 -
1 stop9h 11m
Mon 4/122:35 -
1 stop21h 12m
Deal found 13/11£244
Sat 5/1212:00 -
Nonstop3h 55m
Tue 8/1208:05 -
1 stop10h 32m
Deal found 10/11£246
Tue 8/1214:30 -
1 stop7h 00m
Tue 15/1217:20 -
1 stop7h 31m
Deal found 10/11£247
Wed 9/1223:59 -
1 stop6h 46m
Wed 16/1213:40 -
2 stops9h 07m
Deal found 9/11£250
Tue 8/1200:30 -
Nonstop3h 50m
Wed 9/1208:30 -
1 stop11h 00m
Deal found 11/11£254
Wed 16/1209:25 -
Nonstop4h 04m
Mon 21/1206:10 -
Nonstop4h 44m
Deal found 10/11£262

Find flight deals from Seattle to Dallas/Fort Worth

Round-trip from

£228

One-way from

£120

Popular in

July

Cheapest in

January

Average price

£327
Alaska Airlines
  • Alaska Airlines
  • 3/12-4/12
  • Nonstop
  • 8h 32m total
  • Seattle to Dallas
Delta
  • Delta
  • 15/12-31/12
  • Nonstop
  • 3h 55m total
  • Seattle to Dallas
Highest demand for flights based on searches. 10% potential increase in price (£28 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Dallas/Fort Worth Airport that are best for you.

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Depart

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Price

Cheapest return flight

SeattleDallas

SEA Seattle/Tacoma Intl - DFW Dallas/Fort Worth

SEADFW

Seattle/Tacoma Intl

Sat 5/12

06:15-17:51

2 stops9h 36m

Dallas/Fort Worth

Wed 31/12

00:00-22:00

Nonstop0h 00m

£128

SeattleDallas

SEA Seattle/Tacoma Intl - DFW Dallas/Fort Worth

SEADFW

Seattle/Tacoma Intl

Tue 8/12

09:25-15:29

Nonstop4h 04m

Dallas/Fort Worth

Wed 31/12

00:00-22:00

Nonstop0h 00m

£133

SeattleDallas

SEA Seattle/Tacoma Intl - DFW Dallas/Fort Worth

SEADFW

Seattle/Tacoma Intl

Wed 6/1

11:50-17:51

Nonstop4h 01m

Dallas/Fort Worth

Wed 31/12

00:00-22:00

Nonstop0h 00m

£146
Fastest return journey

SeattleDallas

SEA Seattle/Tacoma Intl - DFW Dallas/Fort Worth

SEADFW

Seattle/Tacoma Intl

Wed 3/2

17:59-23:53

Nonstop3h 54m

Dallas/Fort Worth

Wed 31/12

00:00-22:00

Nonstop0h 00m

£150

SeattleDallas

SEA Seattle/Tacoma Intl - DFW Dallas/Fort Worth

SEADFW

Seattle/Tacoma Intl

Wed 13/1

12:30-23:30

2 stops9h 00m

Dallas/Fort Worth

Wed 31/12

00:00-22:00

Nonstop0h 00m

£158

SeattleDallas

SEA Seattle/Tacoma Intl - DFW Dallas/Fort Worth

SEADFW

Seattle/Tacoma Intl

Wed 16/12

08:46-22:59

2 stops12h 13m

Dallas/Fort Worth

Wed 31/12

00:00-22:00

Nonstop0h 00m

£164

SeattleDallas

SEA Seattle/Tacoma Intl - DFW Dallas/Fort Worth

SEADFW

Seattle/Tacoma Intl

Tue 26/1

08:30-21:55

2 stops11h 25m

Dallas/Fort Worth

Wed 31/12

00:00-22:00

Nonstop0h 00m

£165

SeattleDallas

SEA Seattle/Tacoma Intl - DFW Dallas/Fort Worth

SEADFW

Seattle/Tacoma Intl

Wed 2/12

19:30-08:45

2 stops11h 15m

Dallas/Fort Worth

Wed 31/12

00:00-22:00

Nonstop0h 00m

£173

SeattleDallas

SEA Seattle/Tacoma Intl - DFW Dallas/Fort Worth

SEADFW

Seattle/Tacoma Intl

Fri 4/12

08:46-22:59

2 stops12h 13m

Dallas/Fort Worth

Wed 31/12

00:00-22:00

Nonstop0h 00m

£176

SeattleDallas

SEA Seattle/Tacoma Intl - DFW Dallas/Fort Worth

SEADFW

Seattle/Tacoma Intl

Fri 1/1

05:00-16:01

1 stop9h 01m

Dallas/Fort Worth

Wed 31/12

00:00-22:00

Nonstop0h 00m

£177

Flights are sorted by cheapest return flights first.

Deals found on 8/11

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Dallas/Fort Worth

Have a flexible travel schedule? Discover the best time to fly to Dallas/Fort Worth from Seattle with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Dallas/Fort Worth Airport

How far ahead should I book a flight from Seattle to Dallas/Fort Worth Airport?

The price you pay for your flight from Seattle to Dallas/Fort Worth Airport may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Dallas/Fort Worth Airport?

Currently, January is the cheapest month in which you can book a flight from Seattle to Dallas/Fort Worth Airport (average of £222). Flying from Seattle to Dallas/Fort Worth Airport in July is currently the most expensive (average of £358). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to DFW?

A simple way to save on the total cost of your ticket is to fly from Seattle to Dallas/Fort Worth Airport in the evening. If you’re flexible enough to do this you can expect to save up to 75% on your trip compared to booking a flight at midday.

How much does it cost for a return flight from Seattle to Dallas/Fort Worth Airport?

Airfare is below average for this route at the moment.

Seattle to Dallas/Fort Worth Airport flights typically cost between £259 and £435 in December.
The cheapest return price found within the last 5 days was £228 on Alaska Airlines (3 Dec–4 Dec).

Related info for your journey

  • What airport do you fly from for flights from Seattle to Dallas/Fort Worth?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Dallas/Fort Worth. You should not have trouble finding flights to Dallas/Fort Worth from Seattle/Tacoma Intl; the airport handles an average of 28 outbound flights to Dallas/Fort Worth per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Seattle airport to Dallas/Fort Worth. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • How long is the flight from Seattle to Dallas/Fort Worth Airport?

    For as low as £239, Delta can have you in Dallas/Fort Worth Airport from Seattle in 3h 55m. Airlines will cover a distance of 1657 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Seattle to Dallas/Fort Worth Airport?

    Consider Alaska Airlines (87%), STARLUX Airlines (85%) or KLM (85%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Dallas/Fort Worth Airport.

  • Can I find deals for flights from Seattle to Dallas/Fort Worth that include hotel bookings?

    Yes. In addition to deals on Seattle to Dallas/Fort Worth flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Dallas/Fort Worth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Dallas/Fort Worth.

  • Can I find deals for business class flights from Seattle to Dallas/Fort Worth?

    Yes. Cheapflights offers flight deals from Seattle to Dallas/Fort Worth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Dallas/Fort Worth Airport?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Dallas/Fort Worth Airport (average of £222). Flying from Seattle to Dallas/Fort Worth Airport in July is currently the most expensive (average of £358). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Dallas/Fort Worth Airport?

Book flights to Dallas/Fort Worth Airport if you plan to visit one of these locations
Fort Worth
Arlington
Granbury
Frisco
Corinth

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