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Cheap flights from Dallas/Fort Worth Airport to Seattle from £122

DFW — SEA
15 Oct — 22 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dallas/Fort Worth to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Dallas/Fort Worth to Seattle

Wed 14/1006:03 -
Nonstop4h 26m
Wed 14/1011:31 -
1 stop9h 24m
Deal found 14/9£212
Sat 14/1114:35 -
1 stop6h 06m
Sat 5/1217:56 -
Nonstop3h 55m
Deal found 15/9£213
Wed 14/1006:30 -
Nonstop4h 28m
Mon 19/1009:36 -
Nonstop4h 04m
Deal found 15/9£216
Sat 10/1016:05 -
1 stop7h 53m
Thu 15/1012:30 -
1 stop9h 28m
Deal found 15/9£220
Wed 14/1019:34 -
Nonstop4h 28m
Mon 19/1017:58 -
Nonstop4h 01m
Deal found 14/9£227
Thu 19/1119:31 -
Nonstop4h 29m
Tue 1/1208:38 -
Nonstop3h 56m
Deal found 15/9£233
Tue 13/1015:33 -
1 stop7h 28m
Tue 20/1013:20 -
1 stop7h 09m
Deal found 15/9£242
Wed 7/1019:34 -
Nonstop4h 28m
Sun 11/1000:24 -
Nonstop3h 56m
Deal found 14/9£244
Fri 30/1017:00 -
Nonstop4h 30m
Fri 6/1117:55 -
Nonstop4h 02m
Deal found 14/9£250
Fri 30/1015:25 -
1 stop8h 08m
Fri 30/1000:24 -
Nonstop3h 56m
Deal found 14/9£256
Mon 7/1220:36 -
Nonstop4h 21m
Tue 8/1207:00 -
1 stop14h 14m
Deal found 11/9£257
Fri 30/1017:00 -
Nonstop4h 30m
Sun 1/1105:30 -
1 stop6h 24m
Deal found 15/9£258

Find flight deals from Dallas/Fort Worth to Seattle

Round-trip from

£212

One-way from

£122

Popular in

July

Cheapest in

January

Average price

£291
Alaska Airlines
  • Alaska Airlines
  • 14/10-14/10
  • 1 total stop
  • 13h 13m total
  • Dallas to Seattle
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United Airlines
  • United Airlines
  • 17/12-31/12
  • 1 total stop
  • 6h 28m total
  • Dallas to Seattle
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£41 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Sat 10/10

18:14-20:39

Nonstop4h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£131
Fastest return journey

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Sat 12/12

20:36-22:57

Nonstop4h 21m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£147

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Sat 19/12

20:16-22:51

1 stop28h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£162

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Wed 18/11

07:00-20:56

2 stops15h 56m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£162

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Fri 9/10

19:34-22:02

Nonstop4h 28m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£182

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Sun 13/12

20:36-22:57

Nonstop4h 21m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£184

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Sun 29/11

22:21-02:32

1 stop6h 11m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£190

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Sun 14/3

06:25-13:00

1 stop8h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£192

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Fri 12/3

06:25-13:00

1 stop8h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£192

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Wed 10/3

07:00-20:10

2 stops15h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£196

Flights are sorted by cheapest return flights first.

Deals found on 14/9

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

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

Cheapflights Insights

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

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

The price you pay for your flight from Dallas/Fort Worth Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 31 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 Dallas/Fort Worth Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Seattle (average of £198). Flying from Dallas/Fort Worth Airport to Seattle in July is currently the most expensive (average of £328). 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 DFW to SEA?

Unlike in the evening, when flights are generally more expensive, you can save up to 90% on flights from Dallas/Fort Worth Airport to Seattle by exploring options for tickets at midday.

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

Airfare is below average for this route at the moment.

Dallas/Fort Worth Airport to Seattle flights typically cost between £251 and £341 in October.
The cheapest return price found within the last 5 days was £212 on Alaska Airlines (14 Oct–14 Oct).

Related info for your journey

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

    For a flight from Dallas/Fort Worth to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 35 inbound flights from Dallas/Fort Worth per day. 0 airlines have flights to Seattle/Tacoma Intl from Dallas/Fort Worth on a regular basis.

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

    Delta, Alaska Airlines, and United Airlines can get you from Dallas/Fort Worth Airport to Seattle in just under 4h 41m. Your travel time can differ by up to 5h 04m. The distance from Dallas/Fort Worth Airport to Seattle is about 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 Dallas/Fort Worth Airport to Seattle?

    Consider Condor (96%), Scandinavian Airlines (92%) or Alaska Airlines (81%) when booking your flight. These represent the most reliable airlines when flying from Dallas/Fort Worth Airport to Seattle.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dallas/Fort Worth to Seattle 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 Dallas/Fort Worth Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Seattle (average of £198). Flying from Dallas/Fort Worth Airport to Seattle in July is currently the most expensive (average of £328). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
Federal Way
SeaTac

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Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Dallas/Fort Worth today and book when prices fit your budget.

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