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Cheap flights from Dallas/Fort Worth Airport to Seattle from £113

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — SEA
23 Jun — 30 Jun1
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
Explore the most affordable flight options available from Dallas/Fort Worth to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 May 2026.

Sat 11/722:51
DFW
-
SEA
1 stop13h 48m
Frontier
Sat 18/711:54
SEA
-
DFW
1 stop23h 37m
Frontier
Deal found 23/5£209
Tue 2/607:11
DFW
-
SEA
1 stop13h 24m
Frontier
Tue 9/620:12
SEA
-
DFW
1 stop7h 36m
Frontier
Deal found 20/5£226
Fri 29/513:03
DFW
-
SEA
1 stop9h 25m
Alaska Airlines
Fri 29/522:58
SEA
-
DFW
Nonstop4h 02m
Alaska Airlines
Deal found 22/5£242
Mon 29/618:03
DFW
-
SEA
Nonstop4h 21m
Alaska Airlines
Mon 13/706:02
SEA
-
DFW
Nonstop3h 57m
Alaska Airlines
Deal found 19/5£243
Fri 29/513:03
DFW
-
SEA
1 stop27h 27m
Alaska Airlines
Sat 30/517:50
SEA
-
DFW
Nonstop4h 09m
Alaska Airlines
Deal found 23/5£246
Sat 11/720:45
DFW
-
SEA
Nonstop4h 20m
Multiple Airlines
Sat 18/711:54
SEA
-
DFW
1 stop23h 37m
Multiple Airlines
Deal found 23/5£250
Tue 1/919:38
DFW
-
SEA
1 stop21h 08m
Alaska Airlines
Wed 2/917:56
SEA
-
DFW
Nonstop4h 03m
Alaska Airlines
Deal found 20/5£251
Mon 7/1217:45
DFW
-
SEA
1 stop23h 06m
Alaska Airlines
Tue 8/1217:59
SEA
-
DFW
Nonstop4h 00m
Alaska Airlines
Deal found 20/5£269
Sat 5/917:46
DFW
-
SEA
1 stop14h 14m
Alaska Airlines
Sun 6/908:40
SEA
-
DFW
Nonstop4h 06m
Alaska Airlines
Deal found 22/5£274
Sat 15/814:52
DFW
-
SEA
1 stop8h 43m
Alaska Airlines
Sat 15/823:03
SEA
-
DFW
Nonstop3h 59m
Alaska Airlines
Deal found 19/5£276
Tue 25/808:00
DFW
-
SEA
Nonstop4h 33m
Alaska Airlines
Tue 25/813:53
SEA
-
DFW
Nonstop4h 04m
Alaska Airlines
Deal found 23/5£277

Find flight deals from Dallas/Fort Worth to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Dallas/Fort Worth (DFW) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 24 May 2026.

Round-trip from

£209

One-way from

£113

Popular in

May

Cheapest in

January

Average price

£295
Frontier
  • Frontier
  • 11/7-18/7
  • 2 total stops
  • 37h 25m total
  • Dallas to Seattle
Search Deals
Frontier
  • Frontier
  • 17/6
  • 1 total stop
  • 6h 30m total
  • Dallas to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dallas/Fort Worth to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 24 May 2026.
Use the filters below to find and compare flights from Dallas/Fort Worth Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 11/7

20:45-23:05

Nonstop4h 20m

Seattle/Tacoma Intl

Wed 15/7

06:02-11:59

Nonstop3h 57m

£291

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 18/7

20:45-23:05

Nonstop4h 20m

Seattle/Tacoma Intl

Tue 21/7

06:02-11:59

Nonstop3h 57m

£291

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 1/8

09:00-11:20

Nonstop4h 20m

Seattle/Tacoma Intl

Wed 5/8

06:02-11:59

Nonstop3h 57m

£291

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Tue 14/7

06:24-08:45

Nonstop4h 21m

Seattle/Tacoma Intl

Wed 22/7

07:45-13:49

Nonstop4h 04m

£291

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Thu 30/7

20:45-23:05

Nonstop4h 20m

Seattle/Tacoma Intl

Tue 4/8

06:02-11:59

Nonstop3h 57m

£307

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Tue 14/7

09:00-11:20

Nonstop4h 20m

Seattle/Tacoma Intl

Fri 17/7

07:45-13:49

Nonstop4h 04m

£307

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 29/7

06:24-08:45

Nonstop4h 21m

Seattle/Tacoma Intl

Sun 2/8

06:02-11:59

Nonstop3h 57m

£307

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 1/8

20:45-23:05

Nonstop4h 20m

Seattle/Tacoma Intl

Sun 16/8

07:45-13:49

Nonstop4h 04m

£307

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 29/7

18:31-23:58

1 stop7h 27m

Seattle/Tacoma Intl

Tue 4/8

05:15-13:25

1 stop6h 10m

£313

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 1/8

06:20-08:36

Nonstop4h 16m

Seattle/Tacoma Intl

Sun 9/8

07:15-19:04

1 stop9h 49m

£315

Flights are sorted by cheapest return flights first.

Deals found on 23/5

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 70 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 £199). Flying from Dallas/Fort Worth Airport to Seattle in May is currently the most expensive (average of £295). 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?

Find hourly flight availability from Dallas/Fort Worth to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 24 May 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 50% on flights from Dallas/Fort Worth Airport to Seattle by exploring options for tickets in the evening.

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

Related info for your journey

Find useful and relevant information for your journey from Dallas/Fort Worth to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 42 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?

    Alaska Airlines can get you from Dallas/Fort Worth Airport to Seattle in just under 21h 08m. Your travel time can differ by up to . The distance from Dallas/Fort Worth Airport to Seattle is about 1657 mi.

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

    Consider Condor (99%), Hawaiian Airlines (95%) or Alaska Airlines (84%) 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 £199). Flying from Dallas/Fort Worth Airport to Seattle in May is currently the most expensive (average of £295). 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
Tacoma
Federal Way
SeaTac

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Why should you use Cheapflights to find cheap flight tickets from Dallas/Fort Worth to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from Dallas/Fort Worth to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Dallas/Fort Worth to Seattle with no change fees?

Yes! Cheapflights helps users easily find flights from Dallas/Fort Worth to Seattle with no change fees.

Can Cheapflights notify me if prices for flights from Dallas/Fort Worth to Seattle become cheaper?

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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