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Cheap flights from Dallas/Fort Worth Airport to Seattle from £111

DFW — SEA
2 Dec — 9 Dec1
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

Tue 8/1215:09 -
1 stop8h 48m
Tue 8/1200:30 -
Nonstop3h 50m
Deal found 1/11£199
Wed 11/1122:03 -
1 stop13h 42m
Sat 5/1216:58 -
1 stop15h 20m
Deal found 31/10£217
Mon 7/1217:57 -
Nonstop4h 38m
Mon 7/1200:30 -
Nonstop3h 50m
Deal found 29/10£218
Wed 2/1208:05 -
1 stop8h 08m
Wed 2/1218:02 -
Nonstop3h 57m
Deal found 30/10£220
Thu 3/1209:30 -
Nonstop4h 42m
Mon 7/1210:59 -
Nonstop3h 55m
Deal found 1/11£222
Thu 3/1205:25 -
1 stop11h 38m
Sun 6/1209:25 -
Nonstop4h 04m
Deal found 2/11£229
Sat 5/1206:00 -
Nonstop4h 41m
Tue 8/1218:40 -
2 stops17h 26m
Deal found 29/10£231
Sat 5/1211:42 -
1 stop9h 01m
Tue 8/1214:05 -
1 stop8h 11m
Deal found 2/11£237
Mon 23/1106:00 -
Nonstop4h 33m
Thu 3/1218:02 -
Nonstop3h 57m
Deal found 28/10£238

Find flight deals from Dallas/Fort Worth to Seattle

Round-trip from

£199

One-way from

£111

Popular in

July

Cheapest in

January

Average price

£274
Alaska Airlines
  • Alaska Airlines
  • 8/12-8/12
  • 1 total stop
  • 12h 38m total
  • Dallas to Seattle
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Delta
  • Delta
  • 2/12-31/12
  • Nonstop
  • 4h 44m total
  • Dallas to Seattle
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£35 potential increase over avg. return price).
Search Deals
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 November 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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Fly to

Route

Depart

Return

Price

Cheapest return flight

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Wed 16/12

06:20-09:04

Nonstop4h 44m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£111

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Tue 1/12

06:00-08:41

Nonstop4h 41m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£128

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Wed 18/11

17:00-19:34

Nonstop4h 34m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£128

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Tue 24/11

06:30-09:03

Nonstop4h 33m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£128

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Thu 10/12

12:33-18:47

1 stop8h 14m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£136

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Mon 14/12

13:40-23:44

2 stops12h 04m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£139

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Sat 19/12

18:20-20:56

Nonstop4h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£141

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Wed 30/12

06:00-08:38

Nonstop4h 38m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£141

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Mon 18/1

06:55-09:35

Nonstop4h 40m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£141
Fastest return journey

DallasSeattle

DFW Dallas/Fort Worth - SEA Seattle/Tacoma Intl

DFWSEA

Dallas/Fort Worth

Fri 15/1

16:39-19:10

Nonstop4h 31m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£141

Flights are sorted by cheapest return flights first.

Deals found on 30/10

Showing 1-10 of 21 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 28 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 £210). Flying from Dallas/Fort Worth Airport to Seattle in July is currently the most expensive (average of £333). 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 £223 and £344 in December.
The cheapest return price found within the last 5 days was £199 on Alaska Airlines (8 Dec–8 Dec).

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 28 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 and Alaska Airlines can get you from Dallas/Fort Worth Airport to Seattle in just under 4h 35m. Your travel time will be generally consistent. The distance from Dallas/Fort Worth Airport to Seattle is about 1657 mi. Most flights are nonstop.

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

    Consider Air France (100%), Korean Air (92%) or Scandinavian Airlines (91%) 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 £210). Flying from Dallas/Fort Worth Airport to Seattle in July is currently the most expensive (average of £333). 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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