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Cheap flights from Dallas/Fort Worth Airport to Seattle from £87

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 24/2. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — SEA
7 Mar — 14 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Dallas/Fort Worth to Seattle/Tacoma Intl are usually found in February or April, booked 31 days in advance, depart on a Wednesday or Tuesday and return on a Monday

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 5 February 2026.

Sat 28/217:39
DFW
-
SEA
1 stop23h 02m
Alaska Airlines
Sun 1/318:01
SEA
-
DFW
Nonstop3h 58m
Alaska Airlines
Deal found 3/2£159
Tue 10/306:00
DFW
-
SEA
Nonstop4h 34m
Alaska Airlines
Tue 10/311:56
SEA
-
DFW
Nonstop4h 03m
Alaska Airlines
Deal found 2/2£169
Fri 6/316:10
DFW
-
SEA
Nonstop4h 30m
Delta
Mon 9/317:59
SEA
-
DFW
Nonstop3h 55m
Delta
Deal found 4/2£173
Sat 7/306:00
DFW
-
SEA
Nonstop4h 34m
Alaska Airlines
Sat 14/307:45
SEA
-
DFW
1 stop6h 54m
Alaska Airlines
Deal found 5/2£180
Sat 2/518:58
DFW
-
SEA
Nonstop4h 28m
Alaska Airlines
Sat 2/522:57
SEA
-
DFW
Nonstop4h 03m
Alaska Airlines
Deal found 2/2£184
Fri 27/305:30
DFW
-
SEA
1 stop6h 19m
United Airlines
Mon 30/323:59
SEA
-
DFW
1 stop7h 55m
United Airlines
Deal found 4/2£188
Sat 28/213:43
DFW
-
SEA
2 stops9h 18m
United Airlines
Sun 1/306:45
SEA
-
DFW
1 stop7h 13m
United Airlines
Deal found 2/2£191
Tue 28/416:30
DFW
-
SEA
Nonstop4h 27m
Delta
Mon 4/517:50
SEA
-
DFW
Nonstop4h 01m
Delta
Deal found 2/2£195
Sat 12/917:45
DFW
-
SEA
1 stop6h 09m
Alaska Airlines
Sat 12/901:15
SEA
-
DFW
Nonstop3h 56m
Alaska Airlines
Deal found 4/2£196
Tue 17/318:59
DFW
-
SEA
Nonstop4h 33m
Alaska Airlines
Tue 17/300:23
SEA
-
DFW
Nonstop3h 57m
Alaska Airlines
Deal found 3/2£199
Mon 27/406:20
DFW
-
SEA
Nonstop4h 32m
Alaska Airlines
Tue 5/508:25
SEA
-
DFW
1 stop6h 22m
Alaska Airlines
Deal found 4/2£202
Tue 5/507:30
DFW
-
SEA
2 stops9h 06m
United Airlines
Sat 9/508:51
SEA
-
DFW
1 stop6h 11m
United Airlines
Deal found 4/2£206

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 5 February 2026.

Round-trip from

£159

One-way from

£87

Popular in

July

Cheapest in

February

Average price

£177

Good round-trip deal

£188 or less

Good one-way deal

£170 or less
Alaska Airlines
  • Alaska Airlines
  • 28/2-1/3
  • 1 total stop
  • 27h 00m total
  • Dallas to Seattle
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 2/3
  • Nonstop
  • 4h 34m total
  • Dallas to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Dallas/Fort Worth to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Dallas/Fort Worth to Seattle/Tacoma Intl.
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 5 February 2026.
Use the filters below to find and compare flights from Dallas/Fort Worth Airport to Seattle that are best for you.

Fly from

Dallas/Fort Worth

Fly to

Seattle

Route

Depart

Return

Price

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sun 1/3

06:00-08:34

Nonstop4h 34m

Seattle/Tacoma Intl

Wed 4/3

12:30-18:27

Nonstop3h 57m

£173

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 25/2

06:00-08:33

Nonstop4h 33m

Seattle/Tacoma Intl

Fri 27/2

17:55-23:45

Nonstop3h 50m

£173

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Fri 6/3

19:27-22:01

Nonstop4h 34m

Seattle/Tacoma Intl

Sat 7/3

08:30-14:28

Nonstop3h 58m

£173

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 4/3

06:00-08:33

Nonstop4h 33m

Seattle/Tacoma Intl

Sun 8/3

09:35-15:35

Nonstop4h 00m

£173

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 25/2

06:00-08:34

Nonstop4h 34m

Seattle/Tacoma Intl

Thu 26/2

22:51-04:40

Nonstop3h 49m

£173

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Thu 26/2

06:00-08:33

Nonstop4h 33m

Seattle/Tacoma Intl

Sun 1/3

18:35-00:25

Nonstop3h 50m

£173

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sun 1/3

06:00-08:33

Nonstop4h 33m

Seattle/Tacoma Intl

Wed 4/3

17:55-23:45

Nonstop3h 50m

£173

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Fri 6/3

19:27-22:01

Nonstop4h 34m

Seattle/Tacoma Intl

Thu 12/3

22:51-04:40

Nonstop3h 49m

£173

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Thu 26/2

06:00-08:34

Nonstop4h 34m

Seattle/Tacoma Intl

Sat 28/2

07:45-16:39

1 stop6h 54m

£180

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Tue 24/2

16:10-18:40

Nonstop4h 30m

£87

Flights are sorted by cheapest return flights first.

Deals found on 3/2

Showing 1-10 of 17 results
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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?

Use this chart to determine the optimal time to book a return flight from Dallas/Fort Worth to Seattle. Price data was last updated on 30 January 2026.

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, March is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Seattle (average of £53). Flying from Dallas/Fort Worth Airport to Seattle in June is currently the most expensive (average of £121). 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 5 February 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.

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 33 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 and Delta can get you from Dallas/Fort Worth Airport to Seattle in just under 4h 33m. 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 KLM (100%), Iberia (79%) or STARLUX Airlines (77%) when booking your flight. These represent the most reliable airlines when flying from Dallas/Fort Worth Airport to Seattle.

  • What are the cheapest flights from Dallas/Fort Worth Airport to Seattle?

    Looking for the cheapest flight from Dallas/Fort Worth Airport to Seattle? While on average our users pay £210, our data indicates the cheapest price to be £145. The most popular route (Dallas/Fort Worth - Seattle/Tacoma Intl), is priced around £400.

  • 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, March is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Seattle (average of £53). Flying from Dallas/Fort Worth Airport to Seattle in June is currently the most expensive (average of £121). 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?

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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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