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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 24/1. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — SEA
25 Jan — 1 Feb1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Dallas/Fort Worth to Seattle/Tacoma Intl are usually found in January or February, booked 38 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 26 December 2025.

Tue 30/1221:27DFW - SEA
Nonstop4h 35mAlaska Airlines
Sat 10/108:23SEA - DFW
Nonstop3h 59mAlaska Airlines
Deal found 24/12£317
Tue 30/1209:20DFW - SEA
Nonstop4h 39mAlaska Airlines
Tue 30/1201:07SEA - DFW
Nonstop3h 53mAlaska Airlines
Deal found 24/12£327
Wed 31/1205:35DFW - SEA
1 stop6h 21mUnited Airlines
Sun 4/117:53SEA - DFW
1 stop9h 17mUnited Airlines
Deal found 24/12£337
Thu 25/1211:52DFW - SEA
1 stop8h 14mUnited Airlines
Thu 1/108:57SEA - DFW
1 stop6h 09mUnited Airlines
Deal found 24/12£342
Tue 30/1221:27DFW - SEA
Nonstop4h 35mAlaska Airlines
Fri 2/101:07SEA - DFW
Nonstop3h 53mAlaska Airlines
Deal found 24/12£346
Sun 28/1221:27DFW - SEA
Nonstop4h 35mAlaska Airlines
Tue 30/1201:07SEA - DFW
Nonstop3h 53mAlaska Airlines
Deal found 24/12£360
Thu 25/1214:49DFW - SEA
Nonstop4h 34mAlaska Airlines
Thu 1/114:35SEA - DFW
Nonstop3h 52mAlaska Airlines
Deal found 24/12£360
Wed 24/1221:27DFW - SEA
Nonstop4h 35mAlaska Airlines
Wed 7/109:52SEA - DFW
Nonstop3h 59mAlaska Airlines
Deal found 24/12£369
Fri 26/1216:30DFW - SEA
Nonstop4h 29mDelta
Sat 3/109:40SEA - DFW
Nonstop4h 00mDelta
Deal found 25/12£375
Tue 30/1218:58DFW - SEA
1 stop7h 22mDelta
Sat 10/117:55SEA - DFW
Nonstop3h 50mDelta
Deal found 26/12£376
Thu 25/1218:57DFW - SEA
1 stop6h 30mDelta
Fri 2/117:55SEA - DFW
Nonstop3h 55mDelta
Deal found 25/12£383

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 26 December 2025.

Round-trip from

£127

One-way from

£73

Popular in

July

Cheapest in

January

Average price

£224

Good round-trip deal

£191 or less
Frontier
  • Frontier
  • 7/2-14/2
  • 2 total stops
  • 32h 26m total
  • Dallas to Seattle
Search Deals
Delta
  • Delta
  • 23/2
  • Nonstop
  • 4h 33m total
  • Dallas to Seattle
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip 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 26 December 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 30/1

06:20-08:53

Nonstop4h 33m

Seattle/Tacoma Intl

Mon 2/2

17:55-23:45

Nonstop3h 50m

£146

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Fri 20/2

19:27-22:01

Nonstop4h 34m

Seattle/Tacoma Intl

Mon 23/2

18:01-23:59

Nonstop3h 58m

£146

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Fri 16/1

08:00-10:38

Nonstop4h 38m

Seattle/Tacoma Intl

Tue 20/1

09:52-15:51

Nonstop3h 59m

£146

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Mon 26/1

06:20-08:53

Nonstop4h 33m

Seattle/Tacoma Intl

Wed 28/1

09:30-15:28

Nonstop3h 58m

£146

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 24/1

08:00-10:38

Nonstop4h 38m

Seattle/Tacoma Intl

Mon 26/1

08:23-14:22

Nonstop3h 59m

£146

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 21/2

06:00-08:33

Nonstop4h 33m

Seattle/Tacoma Intl

Tue 24/2

17:55-23:45

Nonstop3h 50m

£146

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Fri 27/2

19:27-22:01

Nonstop4h 34m

Seattle/Tacoma Intl

Mon 2/3

08:30-14:28

Nonstop3h 58m

£146

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 21/2

06:00-08:33

Nonstop4h 33m

Seattle/Tacoma Intl

Wed 25/2

09:25-15:19

Nonstop3h 54m

£146

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 21/1

18:14-20:45

Nonstop4h 31m

Seattle/Tacoma Intl

Tue 27/1

08:23-14:22

Nonstop3h 59m

£146

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sun 18/1

08:10-10:45

Nonstop4h 35m

Seattle/Tacoma Intl

Sun 25/1

17:55-23:45

Nonstop3h 50m

£146

Flights are sorted by cheapest return flights first.

Deals found on 25/12

Showing 1-10 of 24 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 19 December 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 38 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 £48). Flying from Dallas/Fort Worth Airport to Seattle in June is currently the most expensive (average of £123). 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 December 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 49% 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 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?

    Delta and Alaska Airlines can get you from Dallas/Fort Worth Airport to Seattle in just under 4h 35m. 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 Japan Airlines (80%), Hawaiian Airlines (76%) or Scandinavian Airlines (75%) 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 £247, our data indicates the cheapest price to be £190. The most popular route (Dallas/Fort Worth - Seattle/Tacoma Intl), is priced around £147.

  • 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 £48). Flying from Dallas/Fort Worth Airport to Seattle in June is currently the most expensive (average of £123). 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
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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