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Cheap flights from Seattle to Dallas/Fort Worth Airport from C$ 123

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dallas/Fort Worth are usually found in August or January, booked 59 days in advance, depart on a Friday or Wednesday and return on a Monday

Cheap flight deals from Seattle to Dallas/Fort Worth

Enter your travel dates to find the best prices.

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 12 December 2025.

Wed 31/121:25 p.m.SEA - DFW
1 stop8h 44mFrontier
Sun 4/110:54 p.m.DFW - SEA
2 stops17h 00mFrontier
Deal found 10/12C$ 299
Mon 15/1212:48 p.m.SEA - DFW
1 stop6h 53mFrontier
Mon 5/16:05 a.m.DFW - SEA
1 stop13h 33mFrontier
Deal found 10/12C$ 350
Sun 14/1210:51 a.m.SEA - DFW
1 stop8h 27mFrontier
Mon 5/17:15 a.m.DFW - SEA
1 stop7h 15mFrontier
Deal found 11/12C$ 352
Mon 15/1212:48 p.m.SEA - DFW
1 stop6h 53mFrontier
Tue 6/18:00 a.m.DFW - SEA
1 stop11h 51mFrontier
Deal found 10/12C$ 383
Tue 30/121:07 a.m.SEA - DFW
Nonstop3h 53mAlaska Airlines
Tue 6/16:26 a.m.DFW - SEA
1 stop11h 35mAlaska Airlines
Deal found 10/12C$ 388
Mon 15/1212:48 p.m.SEA - DFW
1 stop6h 53mFrontier
Thu 1/110:47 p.m.DFW - SEA
1 stop13h 24mFrontier
Deal found 10/12C$ 392
Mon 15/123:40 p.m.SEA - DFW
1 stop6h 29mFrontier
Fri 2/17:15 a.m.DFW - SEA
1 stop7h 15mFrontier
Deal found 11/12C$ 397
Mon 15/1212:48 p.m.SEA - DFW
1 stop6h 53mMultiple Airlines
Mon 5/19:27 p.m.DFW - SEA
Nonstop4h 35mMultiple Airlines
Deal found 10/12C$ 399
Mon 15/129:45 a.m.SEA - DFW
Nonstop3h 48mFrontier
Tue 23/126:05 a.m.DFW - SEA
1 stop13h 33mFrontier
Deal found 10/12C$ 400
Tue 30/121:07 a.m.SEA - DFW
Nonstop3h 53mAlaska Airlines
Mon 5/19:27 p.m.DFW - SEA
Nonstop4h 35mAlaska Airlines
Deal found 11/12C$ 403

Find 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 12 December 2025.

Round-trip from

C$ 244

One-way from

C$ 123

Popular in

December

Cheapest in

August

Average price

C$ 502

Good round-trip deal

C$ 487 or less

Good one-way deal

C$ 46 or less
Delta
  • Delta
  • 17/1-20/1
  • Nonstop
  • 8h 23m total
  • Seattle to Dallas
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 16/1
  • Nonstop
  • 3h 56m total
  • Seattle to Dallas
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Dallas/Fort Worth.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Dallas/Fort Worth.
Search Deals

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 12 December 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 5/2

9:52 a.m.-3:51 p.m.

Nonstop3h 59m

Dallas/Fort Worth

Sun 8/2

10:00 a.m.-12:39 p.m.

Nonstop4h 39m

C$ 244

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 20/2

6:05 a.m.-7:04 p.m.

1 stop10h 59m

Dallas/Fort Worth

Tue 24/2

6:00 a.m.-8:33 a.m.

Nonstop4h 33m

C$ 273

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 13/2

5:30 a.m.-1:44 p.m.

1 stop6h 14m

Dallas/Fort Worth

Mon 16/2

6:00 a.m.-8:33 a.m.

Nonstop4h 33m

C$ 285

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 7/1

11:25 a.m.-9:16 p.m.

1 stop7h 51m

Dallas/Fort Worth

Thu 15/1

6:45 a.m.-12:57 p.m.

1 stop8h 12m

C$ 299

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 24/1

9:25 a.m.-5:28 p.m.

1 stop6h 03m

Dallas/Fort Worth

Sat 31/1

8:10 a.m.-12:33 p.m.

1 stop6h 23m

C$ 299

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 18/2

10:51 p.m.-4:40 a.m.

Nonstop3h 49m

Dallas/Fort Worth

Wed 25/2

5:39 p.m.-10:18 p.m.

1 stop6h 39m

C$ 313

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 15/1

8:25 a.m.-5:14 p.m.

1 stop6h 49m

Dallas/Fort Worth

Tue 20/1

8:00 a.m.-10:38 a.m.

Nonstop4h 38m

C$ 327

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sun 15/3

5:30 a.m.-1:47 p.m.

1 stop6h 17m

Dallas/Fort Worth

Sun 22/3

8:15 a.m.-12:25 p.m.

1 stop6h 10m

C$ 354

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 15/4

6:57 a.m.-4:04 p.m.

1 stop7h 07m

Dallas/Fort Worth

Wed 22/4

11:05 a.m.-5:57 p.m.

1 stop8h 52m

C$ 357

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 17/2

10:51 p.m.-4:40 a.m.

Nonstop3h 49m

Dallas/Fort Worth

Sun 22/2

6:00 a.m.-8:34 a.m.

Nonstop4h 34m

C$ 368

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 24 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 5 December 2025.

Booking 59 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, January is the cheapest month in which you can book a flight from Seattle to Dallas/Fort Worth Airport (average of C$ 112). Flying from Seattle to Dallas/Fort Worth Airport in December is currently the most expensive (average of C$ 223). 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 12 December 2025.

It’s typically best to fly out from Seattle to Dallas/Fort Worth Airport in the afternoon. Doing so could potentially save you 19% 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 6 December 2025.

Travelers seeking maximum savings on their Seattle to Dallas/Fort Worth Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday at noon 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 12 December 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
11,432 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,432 reviews
Alaska Airlines
8.0
Very good
11,432 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Hawaiian Airlines
7.8
Good
2,817 reviews
Alaska Airlines
8.0
Very good
11,432 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,049 reviews
Alaska Airlines
8.0
Very good
11,432 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Spirit Airlines
6.3
Okay
8,180 reviews
Alaska Airlines
8.0
Very good
11,432 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Frontier
5.8
Fair
3,084 reviews
Alaska Airlines
8.0
Very good
11,432 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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 45 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 Alaska Airlines and Delta fly from Seattle to Dallas/Fort Worth Airport in about 3h 59m. The time it takes to get you to your destination can typically vary by up to 7h. The distance from Seattle to Dallas/Fort Worth Airport is about 2667 km. This flight may include one or multiple stops.

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

    Flying on Frontier is currently your cheapest option to Dallas/Fort Worth Airport, with prices starting at C$ 78. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Delta, with the lowest prices starting at C$ 83 and C$ 104, respectively. You may be able to fly from Seattle to Dallas/Fort Worth Airport for 80% less than the average price by searching for these airlines.

  • 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 Finnair (91%), Air Tahiti Nui (89%) or KLM (89%) 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$ 617 for a flight from Seattle to Dallas/Fort Worth Airport. The cheapest flight overall is C$ 45 while the most popular route, (Seattle/Tacoma Intl - Dallas/Fort Worth) is currently priced at C$ 396.

  • 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, January is the cheapest month in which you can book a flight from Seattle to Dallas/Fort Worth Airport (average of C$ 112). Flying from Seattle to Dallas/Fort Worth Airport in December is currently the most expensive (average of C$ 223). 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
Rockwall
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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 103AverageC$ 268FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 104AverageC$ 329FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapestC$ 163AverageC$ 367FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
American AirlinesCheapestC$ 166AverageC$ 333FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Hawaiian AirlinesCheapestC$ 168AverageC$ 335FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Spirit AirlinesCheapestC$ 209AverageC$ 320FlexibilityNo 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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