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Cheap flights from Dallas/Fort Worth Airport to Seattle from £80

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 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — SEA
31 Aug — 7 Sep1
1 adult

Cheapflights Tip: The best prices from Dallas/Fort Worth to Seattle/Tacoma Intl are usually found in January or October, booked 47 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap 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 26 August 2025.

Round-trip from

£133

One-way from

£80

Popular in

July

Cheapest in

January

Average price

£220

Good round-trip deal

£301 or less

Good one-way deal

£243 or less
Delta
  • Delta
  • 24/11-27/11
  • Nonstop
  • 8h 42m total
  • Dallas to Seattle
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Alaska Airlines
  • Alaska Airlines
  • 26/11
  • Nonstop
  • 4h 38m total
  • Dallas to Seattle
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Highest demand for flights based on searches. 14% potential increase in price (£24 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Dallas/Fort Worth to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Dallas/Fort Worth to Seattle/Tacoma Intl.
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Find flight deals from Dallas/Fort Worth to Seattle

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 26 August 2025.

Wed 3/907:13DFW - SEA
Nonstop4h 22mDelta
Fri 5/909:35SEA - DFW
Nonstop3h 57mDelta
Deal found 25/8£133
Fri 31/1007:10DFW - SEA
Nonstop4h 25mDelta
Wed 5/1109:30SEA - DFW
Nonstop4h 00mDelta
Deal found 26/8£148
Thu 9/1014:19DFW - SEA
1 stop25h 07mFrontier
Thu 16/1016:26SEA - DFW
1 stop7h 33mFrontier
Deal found 25/8£154
Wed 3/907:13DFW - SEA
Nonstop4h 22mDelta
Tue 16/917:50SEA - DFW
Nonstop4h 00mDelta
Deal found 25/8£155
Tue 23/912:35DFW - SEA
Nonstop4h 19mAlaska Airlines
Tue 23/917:56SEA - DFW
Nonstop4h 03mAlaska Airlines
Deal found 24/8£158
Sat 11/1020:39DFW - SEA
Nonstop4h 29mHawaiian Airlines
Tue 14/1000:59SEA - DFW
Nonstop3h 55mHawaiian Airlines
Deal found 25/8£162
Sun 31/807:13DFW - SEA
Nonstop4h 22mDelta
Wed 3/917:50SEA - DFW
Nonstop3h 54mDelta
Deal found 24/8£169
Sat 20/906:15DFW - SEA
Nonstop4h 17mHawaiian Airlines
Sat 27/906:00SEA - DFW
Nonstop4h 02mHawaiian Airlines
Deal found 26/8£170
Tue 16/912:35DFW - SEA
Nonstop4h 19mAlaska Airlines
Tue 16/917:56SEA - DFW
Nonstop4h 03mAlaska Airlines
Deal found 24/8£173
Wed 3/907:13DFW - SEA
Nonstop4h 22mDelta
Sat 13/910:45SEA - DFW
Nonstop4h 06mDelta
Deal found 25/8£173
Fri 31/1007:10DFW - SEA
Nonstop4h 25mDelta
Fri 7/1117:55SEA - DFW
Nonstop3h 55mDelta
Deal found 24/8£175
Fri 31/1016:20DFW - SEA
Nonstop4h 17mDelta
Sun 2/1117:55SEA - DFW
Nonstop3h 55mDelta
Deal found 25/8£176

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 26 August 2025.
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

Tue 21/10

07:10-09:35

Nonstop4h 25m

Seattle/Tacoma Intl

Fri 31/10

17:55-23:50

Nonstop3h 55m

£148

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Fri 31/10

16:20-18:37

Nonstop4h 17m

Seattle/Tacoma Intl

Tue 4/11

17:55-23:50

Nonstop3h 55m

£148

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Fri 31/10

07:10-09:35

Nonstop4h 25m

Seattle/Tacoma Intl

Wed 5/11

17:55-23:50

Nonstop3h 55m

£148

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 22/10

16:20-18:37

Nonstop4h 17m

Seattle/Tacoma Intl

Fri 31/10

09:30-15:30

Nonstop4h 00m

£148

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 25/10

16:20-18:37

Nonstop4h 17m

Seattle/Tacoma Intl

Fri 31/10

09:30-15:30

Nonstop4h 00m

£148

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 24/9

08:20-10:40

Nonstop4h 20m

Seattle/Tacoma Intl

Fri 26/9

00:33-06:35

Nonstop4h 02m

£162

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 12/11

18:09-20:35

Nonstop4h 26m

Seattle/Tacoma Intl

Wed 19/11

09:45-15:49

Nonstop4h 04m

£162

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Tue 14/10

20:39-23:08

Nonstop4h 29m

Seattle/Tacoma Intl

Mon 20/10

00:59-06:54

Nonstop3h 55m

£162

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Tue 14/10

07:10-09:35

Nonstop4h 25m

Seattle/Tacoma Intl

Sat 25/10

17:55-23:50

Nonstop3h 55m

£162

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 25/10

16:20-18:37

Nonstop4h 17m

Seattle/Tacoma Intl

Sat 1/11

17:55-23:50

Nonstop3h 55m

£162

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 20 results
1
2

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 22 August 2025.

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 47 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 £622). Flying from Dallas/Fort Worth Airport to Seattle in July is currently the most expensive (average of £946). 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 26 August 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 85% on flights from Dallas/Fort Worth Airport to Seattle by exploring options for tickets at midday.

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 45 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 17m. 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 cheapest airlines to fly from Dallas/Fort Worth Airport to Seattle one-way?

    One-way options have recently been found by users for as low as £80 on Alaska Airlines. Other airlines that offer cheap prices include Hawaiian Airlines from £82 and Delta from £82 one-way.

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

    Consider Scandinavian Airlines (93%), Delta (88%) or Frontier (83%) 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 £275, our data indicates the cheapest price to be £243. The most popular route (Dallas/Fort Worth - Seattle/Tacoma Intl), is priced around £120.

  • 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 £622). Flying from Dallas/Fort Worth Airport to Seattle in July is currently the most expensive (average of £946). 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
Leavenworth
Bothell
SeaTac

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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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