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Cheap flights from Dallas/Fort Worth Airport to Seattle from £73

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — SEA
26 Mar — 2 Apr1
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 February 2026.

Fri 3/406:20
DFW
-
SEA
Nonstop4h 23m
Delta
Mon 6/417:59
SEA
-
DFW
Nonstop3h 56m
Delta
Deal found 23/2£146
Thu 19/316:10
DFW
-
SEA
1 stop9h 13m
Delta
Sun 29/317:59
SEA
-
DFW
Nonstop3h 56m
Delta
Deal found 24/2£153
Wed 8/420:58
DFW
-
SEA
1 stop21h 46m
Multiple Airlines
Wed 15/417:58
SEA
-
DFW
Nonstop4h 01m
Multiple Airlines
Deal found 22/2£154
Sat 25/406:20
DFW
-
SEA
Nonstop4h 32m
Alaska Airlines
Sat 25/411:54
SEA
-
DFW
Nonstop4h 21m
Alaska Airlines
Deal found 22/2£157
Wed 8/406:00
DFW
-
SEA
Nonstop4h 29m
Alaska Airlines
Wed 15/417:58
SEA
-
DFW
Nonstop4h 01m
Alaska Airlines
Deal found 22/2£158
Sat 4/416:26
DFW
-
SEA
Nonstop4h 24m
Delta
Wed 8/417:59
SEA
-
DFW
Nonstop3h 56m
Delta
Deal found 22/2£161
Sat 21/306:00
DFW
-
SEA
Nonstop4h 29m
Alaska Airlines
Wed 25/317:58
SEA
-
DFW
Nonstop4h 01m
Alaska Airlines
Deal found 21/2£168
Thu 2/405:15
DFW
-
SEA
1 stop9h 32m
United Airlines
Tue 7/408:55
SEA
-
DFW
1 stop6h 07m
United Airlines
Deal found 24/2£172
Sat 25/413:43
DFW
-
SEA
1 stop6h 18m
United Airlines
Sat 25/423:35
SEA
-
DFW
1 stop7h 12m
United Airlines
Deal found 22/2£174
Sun 22/306:00
DFW
-
SEA
Nonstop4h 29m
Alaska Airlines
Tue 24/300:23
SEA
-
DFW
Nonstop3h 57m
Alaska Airlines
Deal found 21/2£175

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 February 2026.

Round-trip from

£146

One-way from

£73

Popular in

July

Cheapest in

April

Average price

£206

Good one-way deal

£179 or less
Delta
  • Delta
  • 3/4-6/4
  • Nonstop
  • 8h 20m total
  • Dallas to Seattle
Search Deals
Frontier
  • Frontier
  • 10/5
  • 1 total stop
  • 29h 42m total
  • Dallas to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£16 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 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 24 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

Thu 2/4

06:20-08:43

Nonstop4h 23m

Seattle/Tacoma Intl

Tue 7/4

17:59-23:55

Nonstop3h 56m

£146

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Thu 14/5

16:29-18:57

Nonstop4h 28m

Seattle/Tacoma Intl

Sat 23/5

17:30-23:35

Nonstop4h 05m

£234

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 8/4

14:23-22:56

2 stops10h 33m

Seattle/Tacoma Intl

Wed 15/4

12:54-23:29

2 stops8h 35m

£249

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 18/7

05:45-09:45

1 stop6h 00m

Seattle/Tacoma Intl

Sat 25/7

19:05-05:45

1 stop8h 40m

£252

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 23/5

16:29-18:57

Nonstop4h 28m

Seattle/Tacoma Intl

Mon 1/6

17:30-23:33

Nonstop4h 03m

£254

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Thu 28/5

16:15-18:43

Nonstop4h 28m

Seattle/Tacoma Intl

Mon 1/6

17:50-23:53

Nonstop4h 03m

£270

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Tue 30/6

07:10-09:42

Nonstop4h 32m

Seattle/Tacoma Intl

Fri 10/7

05:45-13:54

1 stop6h 09m

£281

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Thu 21/5

13:03-20:28

1 stop9h 25m

Seattle/Tacoma Intl

Tue 26/5

09:00-18:13

1 stop7h 13m

£294

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Mon 9/3

06:40-14:39

1 stop9h 59m

Seattle/Tacoma Intl

Thu 12/3

11:45-00:27

1 stop10h 42m

£295

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Mon 16/3

16:10-23:23

1 stop9h 13m

Seattle/Tacoma Intl

Wed 18/3

13:30-23:52

1 stop8h 22m

£320

Flights are sorted by cheapest return flights first.

Deals found on 23/2

Showing 1-10 of 23 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 20 February 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 71 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 £74). Flying from Dallas/Fort Worth Airport to Seattle in May 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 24 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 41 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 United Airlines can get you from Dallas/Fort Worth Airport to Seattle in just under 6h 19m. Your travel time can differ by up to 03m. 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 KLM (100%), STARLUX Airlines (77%) or GOL (74%) 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 £179, our data indicates the cheapest price to be £172. The most popular route (Dallas/Fort Worth - Seattle/Tacoma Intl), is priced around £154.

  • 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 £74). Flying from Dallas/Fort Worth Airport to Seattle in May 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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