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Cheap flights from Dallas/Fort Worth Airport to Seattle from £83

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — SEA
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Dallas/Fort Worth to Seattle/Tacoma Intl are usually found in January or February, booked 47 days in advance, depart on a Wednesday or Tuesday 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 15 September 2025.

Round-trip from

£152

One-way from

£83

Popular in

July

Cheapest in

January

Average price

£203

Good round-trip deal

£246 or less
Alaska Airlines
  • Alaska Airlines
  • 18/11-19/11
  • 1 total stop
  • 27h 57m total
  • Dallas to Seattle
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Alaska Airlines
  • Alaska Airlines
  • 7/10
  • Nonstop
  • 4h 31m total
  • Dallas to Seattle
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Highest demand for flights based on searches. 13% potential increase in price (£21 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 September 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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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 15 September 2025.

Tue 18/1116:49DFW - SEA
1 stop23h 57mAlaska Airlines
Wed 19/1117:59SEA - DFW
Nonstop4h 00mAlaska Airlines
Deal found 13/9£152
Tue 18/1108:00DFW - SEA
Nonstop4h 36mHawaiian Airlines
Mon 5/101:07SEA - DFW
Nonstop3h 53mHawaiian Airlines
Deal found 13/9£154
Tue 7/1020:39DFW - SEA
Nonstop4h 29mAlaska Airlines
Tue 7/1000:59SEA - DFW
Nonstop3h 55mAlaska Airlines
Deal found 13/9£161
Sat 18/1018:29DFW - SEA
Nonstop4h 17mAlaska Airlines
Mon 27/1000:58SEA - DFW
Nonstop3h 57mAlaska Airlines
Deal found 13/9£166
Wed 5/1114:50DFW - SEA
Nonstop4h 31mAlaska Airlines
Wed 5/1119:40SEA - DFW
1 stop7h 35mAlaska Airlines
Deal found 14/9£170
Tue 28/1008:00DFW - SEA
Nonstop4h 36mAlaska Airlines
Tue 28/1013:40SEA - DFW
Nonstop4h 06mAlaska Airlines
Deal found 15/9£171
Thu 2/1009:15DFW - SEA
Nonstop4h 19mAlaska Airlines
Tue 7/1000:59SEA - DFW
Nonstop3h 55mAlaska Airlines
Deal found 13/9£172
Sat 25/1006:34DFW - SEA
1 stop17h 21mAlaska Airlines
Sat 25/1000:58SEA - DFW
Nonstop3h 57mAlaska Airlines
Deal found 13/9£174
Sat 25/1007:10DFW - SEA
Nonstop4h 25mDelta
Fri 31/1009:30SEA - DFW
Nonstop4h 00mDelta
Deal found 14/9£175
Wed 15/1008:10DFW - SEA
Nonstop4h 31mHawaiian Airlines
Tue 21/1000:59SEA - DFW
Nonstop3h 55mHawaiian Airlines
Deal found 15/9£176
Wed 5/1114:50DFW - SEA
Nonstop4h 31mHawaiian Airlines
Wed 5/1100:58SEA - DFW
Nonstop3h 57mHawaiian Airlines
Deal found 13/9£178
Thu 23/1008:10DFW - SEA
Nonstop4h 31mAlaska Airlines
Sun 26/1000:58SEA - DFW
Nonstop3h 57mAlaska Airlines
Deal found 13/9£179

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 15 September 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

Fri 6/2

08:00-10:32

Nonstop4h 32m

Seattle/Tacoma Intl

Tue 10/2

07:55-13:47

Nonstop3h 52m

£157

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Tue 16/12

16:40-22:43

1 stop8h 03m

Seattle/Tacoma Intl

Tue 16/12

00:45-06:40

Nonstop3h 55m

£170

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 15/11

08:00-10:36

Nonstop4h 36m

Seattle/Tacoma Intl

Wed 19/11

00:58-06:55

Nonstop3h 57m

£172

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Tue 7/10

18:29-20:46

Nonstop4h 17m

Seattle/Tacoma Intl

Sun 12/10

00:59-06:54

Nonstop3h 55m

£172

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 1/11

07:10-09:35

Nonstop4h 25m

Seattle/Tacoma Intl

Tue 11/11

17:55-23:54

Nonstop3h 59m

£176

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 29/10

07:10-09:35

Nonstop4h 25m

Seattle/Tacoma Intl

Wed 5/11

17:55-23:50

Nonstop3h 55m

£176

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 15/10

18:29-20:46

Nonstop4h 17m

Seattle/Tacoma Intl

Sat 25/10

13:37-19:39

Nonstop4h 02m

£176

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Thu 6/11

07:10-09:35

Nonstop4h 25m

Seattle/Tacoma Intl

Mon 10/11

17:55-23:54

Nonstop3h 59m

£179

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Mon 3/11

07:10-09:35

Nonstop4h 25m

Seattle/Tacoma Intl

Sat 8/11

17:55-23:50

Nonstop3h 55m

£182

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 11/10

20:39-23:08

Nonstop4h 29m

Seattle/Tacoma Intl

Tue 14/10

17:58-23:59

Nonstop4h 01m

£182

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 21 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 12 September 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 34 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 15 September 2025.

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 afternoon.

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 46 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?

    Hawaiian Airlines, Alaska Airlines, and Delta can get you from Dallas/Fort Worth Airport to Seattle in just under 4h 25m. Your travel time can differ by up to 3h 38m. 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 Scandinavian Airlines (91%), Delta (85%) or Korean Air (80%) 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 £246, our data indicates the cheapest price to be £189. The most popular route (Dallas/Fort Worth - Seattle/Tacoma Intl), is priced around £163.

  • 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 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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