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Cheap flights from Seattle to Dallas/Fort Worth Airport from C$ 157

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 25/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dallas/Fort Worth are usually found in October or January, booked 58 days in advance, depart on a Wednesday or Friday and return on a Thursday

Cheap flight deals from Seattle to Dallas/Fort Worth

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Dallas/Fort Worth (DFW). 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 September 2025.

Round-trip from

C$ 273

One-way from

C$ 157

Popular in

December

Cheapest in

October

Average price

C$ 358

Good round-trip deal

C$ 283 or less

Good one-way deal

C$ 200 or less
Frontier
  • Frontier
  • 20/11-23/11
  • 1 total stop
  • 13h 53m total
  • Seattle to Dallas
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Alaska Airlines
  • Alaska Airlines
  • 14/10
  • Nonstop
  • 4h 01m total
  • Seattle to Dallas
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Highest demand for flights based on searches. 2% potential increase in price (C$ 13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 12 potential savings vs. average RT 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 Seattle/Tacoma Intl to Dallas/Fort Worth.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Dallas/Fort Worth.
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Find flight deals from Seattle to Dallas/Fort Worth

Cheapest flights from Seattle to Dallas/Fort Worth
Explore the most affordable flight options available from Seattle to Dallas/Fort Worth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Thu 20/111:02 p.m.SEA - DFW
1 stop9h 15mFrontier
Sun 23/116:00 a.m.DFW - SEA
Nonstop4h 38mFrontier
Deal found 9/9C$ 273
Mon 24/115:55 p.m.SEA - DFW
Nonstop3h 59mDelta
Wed 3/127:10 a.m.DFW - SEA
Nonstop4h 40mDelta
Deal found 9/9C$ 280
Tue 14/105:55 p.m.SEA - DFW
Nonstop3h 55mDelta
Fri 31/107:10 a.m.DFW - SEA
Nonstop4h 25mDelta
Deal found 9/9C$ 290
Mon 24/115:55 p.m.SEA - DFW
Nonstop3h 59mDelta
Thu 4/127:10 a.m.DFW - SEA
Nonstop4h 40mDelta
Deal found 9/9C$ 292
Sat 22/115:55 p.m.SEA - DFW
Nonstop3h 59mDelta
Thu 27/117:10 a.m.DFW - SEA
Nonstop4h 40mDelta
Deal found 10/9C$ 303
Mon 13/105:55 p.m.SEA - DFW
Nonstop3h 55mDelta
Fri 31/104:20 p.m.DFW - SEA
Nonstop4h 17mDelta
Deal found 9/9C$ 309
Tue 14/1012:59 a.m.SEA - DFW
Nonstop3h 55mHawaiian Airlines
Sat 25/106:29 p.m.DFW - SEA
Nonstop4h 17mHawaiian Airlines
Deal found 11/9C$ 312
Wed 19/1112:58 a.m.SEA - DFW
Nonstop3h 57mMultiple Airlines
Sun 23/116:00 a.m.DFW - SEA
Nonstop4h 38mMultiple Airlines
Deal found 9/9C$ 313
Sat 25/105:55 p.m.SEA - DFW
Nonstop3h 55mDelta
Fri 31/107:10 a.m.DFW - SEA
Nonstop4h 25mDelta
Deal found 11/9C$ 320
Tue 4/1112:58 a.m.SEA - DFW
Nonstop3h 57mAlaska Airlines
Tue 25/112:29 p.m.DFW - SEA
Nonstop4h 31mAlaska Airlines
Deal found 10/9C$ 321
Tue 18/1112:58 a.m.SEA - DFW
Nonstop3h 57mAlaska Airlines
Wed 19/1110:00 a.m.DFW - SEA
Nonstop4h 31mAlaska Airlines
Deal found 8/9C$ 323
Tue 14/1012:59 a.m.SEA - DFW
Nonstop3h 55mAlaska Airlines
Mon 20/108:39 p.m.DFW - SEA
Nonstop4h 29mAlaska Airlines
Deal found 11/9C$ 324

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Dallas/Fort Worth 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 629,999 searches. Data last updated 11 September 2025.
Use the filters below to find and compare flights from Seattle to Dallas/Fort Worth Airport that are best for you.

Fly from

Seattle

Fly to

Dallas/Fort Worth

Route

Depart

Return

Price

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 26/2

6:00 p.m.-11:48 p.m.

Nonstop3h 48m

Dallas/Fort Worth

Sat 28/2

5:50 p.m.-8:22 p.m.

Nonstop4h 32m

C$ 292

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 19/2

5:35 p.m.-11:28 p.m.

Nonstop3h 53m

Dallas/Fort Worth

Fri 27/2

4:30 p.m.-7:00 p.m.

Nonstop4h 30m

C$ 297

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 4/11

12:58 a.m.-6:55 a.m.

Nonstop3h 57m

Dallas/Fort Worth

Sat 15/11

8:50 p.m.-11:25 p.m.

Nonstop4h 35m

C$ 312

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 7/10

5:58 p.m.-11:59 p.m.

Nonstop4h 01m

Dallas/Fort Worth

Tue 14/10

8:39 p.m.-11:08 p.m.

Nonstop4h 29m

C$ 312

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 18/10

5:58 p.m.-11:59 p.m.

Nonstop4h 01m

Dallas/Fort Worth

Tue 21/10

8:10 a.m.-10:41 a.m.

Nonstop4h 31m

C$ 312

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 10/10

5:55 p.m.-11:50 p.m.

Nonstop3h 55m

Dallas/Fort Worth

Tue 14/10

7:10 a.m.-9:35 a.m.

Nonstop4h 25m

C$ 324

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 10/12

7:45 a.m.-1:47 p.m.

Nonstop4h 02m

Dallas/Fort Worth

Mon 15/12

7:40 a.m.-10:18 a.m.

Nonstop4h 38m

C$ 324

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 5/12

12:45 a.m.-6:40 a.m.

Nonstop3h 55m

Dallas/Fort Worth

Mon 15/12

10:00 a.m.-12:37 p.m.

Nonstop4h 37m

C$ 324

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 7/10

5:58 p.m.-11:59 p.m.

Nonstop4h 01m

Dallas/Fort Worth

Thu 9/10

8:39 p.m.-11:08 p.m.

Nonstop4h 29m

C$ 324

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sun 26/10

12:58 a.m.-6:55 a.m.

Nonstop3h 57m

Dallas/Fort Worth

Wed 29/10

2:50 p.m.-5:21 p.m.

Nonstop4h 31m

C$ 324

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 23 results
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Best time to book a flight from Seattle to Dallas/Fort Worth

Have a flexible travel schedule? Discover the best time to fly to Dallas/Fort Worth from Seattle with our price prediction graph.
Estimated round-trip 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 Seattle to Dallas/Fort Worth Airport

How far ahead should I book a flight from Seattle to Dallas/Fort Worth Airport?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Dallas/Fort Worth. Price data was last updated on 29 August 2025.

Booking 58 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Dallas/Fort Worth Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Dallas/Fort Worth Airport?

Currently, July is the cheapest month in which you can book a flight from Seattle to Dallas/Fort Worth Airport (average of C$ 472). Flying from Seattle to Dallas/Fort Worth Airport in December is currently the most expensive (average of C$ 529). 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 SEA to DFW?

Find hourly flight availability from Seattle to Dallas/Fort Worth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

It’s typically best to fly out from Seattle to Dallas/Fort Worth Airport in the afternoon. Doing so could potentially save you 44% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Seattle to Dallas/Fort Worth Airport?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Dallas/Fort Worth. Price data was last updated on 7 September 2025.

Travelers seeking maximum savings on their Seattle to Dallas/Fort Worth Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Dallas/Fort Worth

Get insights into the airlines that provide service to Dallas/Fort Worth. 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 Dallas/Fort Worth. Reviews last updated 11 September 2025.
Read through reviews of airlines operating flights from Seattle to Dallas/Fort Worth Airport, such as Alaska Airlines,Hawaiian Airlines, andAmerican 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

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Spirit Airlines
6.3
Okay
8,023 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Frontier
5.8
Fair
3,177 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Dallas/Fort Worth. 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 from for flights from Seattle to Dallas/Fort Worth?

    If you book a flight to Dallas/Fort Worth from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 18.4 km from the centre of Seattle. There are 46 flights from Seattle/Tacoma Intl to Dallas/Fort Worth per day from 6 different airlines.

  • How long is the flight from Seattle to Dallas/Fort Worth Airport?

    Airlines like Hawaiian Airlines, Delta, and Alaska Airlines fly from Seattle to Dallas/Fort Worth Airport in about 3h 48m. The time it takes to get you to your destination is usually consistent. The distance from Seattle to Dallas/Fort Worth Airport is about 2667 km. All flights are typically direct.

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

    Flying on Delta is currently your cheapest option to Dallas/Fort Worth Airport, with prices starting at C$ 104. Additional round-trip tickets that might be worth considering are offered by Frontier and American Airlines, with the lowest prices starting at C$ 126 and C$ 164, respectively. You may be able to fly from Seattle to Dallas/Fort Worth Airport for 73% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Seattle to Dallas/Fort Worth Airport one-way?

    The cheapest airlines for a one-way flight from Seattle to Dallas/Fort Worth Airport are Delta (C$ 157), Alaska Airlines (C$ 157), and Hawaiian Airlines (C$ 157).

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

    No one likes to see their flight delayed. When booking a flight from Seattle to Dallas/Fort Worth Airport consider choosing KLM (79%), Delta (77%) or Finnair (72%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Dallas/Fort Worth Airport?

    On average you can expect to pay C$ 427 for a flight from Seattle to Dallas/Fort Worth Airport. The cheapest flight overall is C$ 151 while the most popular route, (Seattle/Tacoma Intl - Dallas/Fort Worth) is currently priced at C$ 348.

  • Can I find deals for flights from Seattle to Dallas/Fort Worth that include hotel bookings?

    Yes. In addition to deals on Seattle to Dallas/Fort Worth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Dallas/Fort Worth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Dallas/Fort Worth.

  • Can I find deals for business class flights from Seattle to Dallas/Fort Worth?

    Yes. Cheapflights offers flight deals from Seattle to Dallas/Fort Worth 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 Seattle to Dallas/Fort Worth Airport?

    Currently, July is the cheapest month in which you can book a flight from Seattle to Dallas/Fort Worth Airport (average of C$ 472). Flying from Seattle to Dallas/Fort Worth Airport in December is currently the most expensive (average of C$ 529). 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
Richardson
Fort Worth

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Dallas/Fort Worth

See prices for flight routes from nearby airports that may be better suited for you.
Bellingham to Dallas/Fort Worth flights

Top 6 airlines flying from Seattle to Dallas/Fort Worth

Discover the top 6 airlines that operate flights from Seattle to Dallas/Fort Worth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 104AverageC$ 328FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FrontierCheapestC$ 126AverageC$ 243FlexibilityNo cancel feeOn-time62%
Search Frontier flights
American AirlinesCheapestC$ 164AverageC$ 310FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Hawaiian AirlinesCheapestC$ 169AverageC$ 304FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Alaska AirlinesCheapestC$ 181AverageC$ 375FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Spirit AirlinesCheapestC$ 210AverageC$ 322FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights

Fly with Cheapflights

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

Deals for Seattle to Dallas/Fort Worth flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle to Dallas/Fort Worth for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Seattle to Dallas/Fort Worth with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Dallas/Fort Worth flexibly with Cheapflights today.

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