Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Dallas/Fort Worth Airport to Seattle from £74

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — SEA
16 Jul — 23 Jul1
1 adult

Cheapflights Tip: The best prices from Dallas/Fort Worth to Seattle/Tacoma Intl are usually found in January or September, booked 88 days in advance, depart on a Tuesday or Monday and return on a Tuesday

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 11 July 2025.

Round-trip from

£131

One-way from

£74

Popular in

July

Cheapest in

January

Average price

£249

Good round-trip deal

£152 or less

Good one-way deal

£110 or less
Hawaiian Airlines
  • Hawaiian Airlines
  • 30/8-6/9
  • 1 total stop
  • 12h 53m total
  • Dallas to Seattle
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 8/12
  • Nonstop
  • 4h 32m total
  • Dallas to Seattle
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£26 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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

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 11 July 2025.

Sat 30/807:35DFW - SEA
1 stop8h 51mHawaiian Airlines
Sat 6/906:00SEA - DFW
Nonstop4h 02mHawaiian Airlines
Deal found 10/7£131
Fri 22/807:35DFW - SEA
1 stop8h 51mAlaska Airlines
Fri 22/817:56SEA - DFW
Nonstop4h 03mAlaska Airlines
Deal found 10/7£132
Thu 4/918:20DFW - SEA
1 stop6h 39mUnited Airlines
Mon 8/923:58SEA - DFW
1 stop7h 05mUnited Airlines
Deal found 9/7£158
Sat 30/806:15DFW - SEA
1 stop18h 10mDelta
Tue 2/909:35SEA - DFW
Nonstop3h 57mDelta
Deal found 8/7£162
Mon 25/812:29DFW - SEA
1 stop14h 05mFrontier
Mon 1/906:17SEA - DFW
1 stop25h 03mFrontier
Deal found 11/7£171

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 11 July 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

Sat 30/8

07:35-14:26

1 stop8h 51m

Seattle/Tacoma Intl

Sat 6/9

06:00-12:02

Nonstop4h 02m

£131

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Fri 22/8

07:35-14:26

1 stop8h 51m

Seattle/Tacoma Intl

Fri 22/8

17:56-23:59

Nonstop4h 03m

£132

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Thu 4/9

18:20-22:59

1 stop6h 39m

Seattle/Tacoma Intl

Thu 11/9

23:58-09:03

1 stop7h 05m

£158

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 30/8

06:15-22:25

1 stop18h 10m

Seattle/Tacoma Intl

Tue 2/9

09:35-15:32

Nonstop3h 57m

£162

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Mon 25/8

12:29-00:34

1 stop14h 05m

Seattle/Tacoma Intl

Mon 1/9

06:17-09:20

1 stop25h 03m

£171

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Mon 8/12

06:20-08:52

Nonstop4h 32m

£74

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Thu 14/8

06:00-08:17

Nonstop4h 17m

£77

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 9/8

18:12-22:59

1 stop6h 47m

£79

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 16/8

07:13-09:35

Nonstop4h 22m

£80

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 8/10

06:30-13:00

1 stop8h 30m

£100

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 13 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 27 June 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 88 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 11 July 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 87% on flights from Dallas/Fort Worth Airport to Seattle by exploring options for tickets at midday.

Weekly flight availability from Dallas/Fort Worth Airport to Seattle

Explore weekly flight availability from Dallas/Fort Worth to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 11 July 2025.

The most flights from DFW to SEA are scheduled on a Friday (68 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (36 on average).

How much does it cost for a return flight from Dallas/Fort Worth Airport to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 11 July 2025.
Read through reviews of airlines operating flights from Dallas/Fort Worth Airport to Seattle, such as Alaska Airlines, Delta, andHawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very Good
7,951 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.8
Good
2,564 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,848 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 53 inbound flights from Dallas/Fort Worth per day. 0 airlines have flights to Seattle/Tacoma Intl from Dallas/Fort Worth on a regular basis.

  • What are the cheapest airlines flying from Dallas/Fort Worth Airport to Seattle round-trip?

    Our cheapest airline available from Dallas/Fort Worth Airport to Seattle is Hawaiian Airlines. Our recent data shows that you can find tickets from as low as £131 on this airline. Additional options worth looking into are Alaska Airlines and United Airlines, starting at £132 and £158 round-trip. These flights start at 33% lower than the current average price 3 months from now.

  • 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 £74 on Alaska Airlines. Other airlines that offer cheap prices include Hawaiian Airlines from £77 and United Airlines from £79 one-way.

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

    Consider Scandinavian Airlines (90%), Korean Air (84%) or Delta (84%) 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 £173, our data indicates the cheapest price to be £110. The most popular route (Dallas/Fort Worth - Seattle/Tacoma Intl), is priced around £305.

  • 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 Dallas/Fort Worth Airport?

Book flights to Dallas/Fort Worth Airport if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dallas/Fort Worth to Seattle?

Cheapflights makes it easy to find Dallas/Fort Worth to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Dallas/Fort Worth to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from Dallas/Fort Worth to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights