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Cheap flights from Seattle to Dallas/Fort Worth Airport from C$ 155

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 18/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
11 Apr — 18 Apr1
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 October, booked 89 days in advance, depart on a Friday or Saturday 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 March 2026.

Sun 29/310:08 p.m.
SEA
-
DFW
2 stops29h 39m
Frontier
Sat 4/45:45 a.m.
DFW
-
SEA
1 stop7h 52m
Frontier
Deal found 7/3C$ 300
Sat 18/412:54 p.m.
SEA
-
DFW
2 stops8h 35m
United Airlines
Fri 24/46:02 p.m.
DFW
-
SEA
1 stop6h 31m
United Airlines
Deal found 7/3C$ 301
Thu 16/45:51 p.m.
SEA
-
DFW
Nonstop4h 01m
Delta
Mon 20/47:45 p.m.
DFW
-
SEA
1 stop6h 14m
Delta
Deal found 10/3C$ 308
Wed 25/310:08 p.m.
SEA
-
DFW
1 stop9h 30m
Multiple Airlines
Tue 31/36:00 a.m.
DFW
-
SEA
Nonstop4h 29m
Multiple Airlines
Deal found 7/3C$ 311
Wed 25/310:08 p.m.
SEA
-
DFW
1 stop9h 30m
Multiple Airlines
Wed 15/46:00 a.m.
DFW
-
SEA
Nonstop4h 29m
Multiple Airlines
Deal found 8/3C$ 312
Tue 24/310:08 p.m.
SEA
-
DFW
2 stops14h 57m
Frontier
Thu 16/45:20 a.m.
DFW
-
SEA
1 stop6h 07m
Frontier
Deal found 8/3C$ 314
Thu 26/310:08 p.m.
SEA
-
DFW
1 stop9h 30m
Frontier
Mon 13/410:34 p.m.
DFW
-
SEA
1 stop12h 53m
Frontier
Deal found 8/3C$ 315
Thu 16/411:35 p.m.
SEA
-
DFW
1 stop7h 12m
United Airlines
Sat 25/41:43 p.m.
DFW
-
SEA
2 stops9h 14m
United Airlines
Deal found 11/3C$ 316
Sat 28/39:35 a.m.
SEA
-
DFW
Nonstop4h 01m
Delta
Sun 5/46:20 a.m.
DFW
-
SEA
Nonstop4h 23m
Delta
Deal found 7/3C$ 318
Fri 27/310:08 p.m.
SEA
-
DFW
1 stop9h 30m
Frontier
Sat 18/44:15 p.m.
DFW
-
SEA
1 stop19h 12m
Frontier
Deal found 8/3C$ 319
Mon 13/46:00 a.m.
SEA
-
DFW
Nonstop4h 05m
American Airlines
Sat 18/47:15 a.m.
DFW
-
SEA
Nonstop4h 20m
American Airlines
Deal found 7/3C$ 320
Mon 30/35:59 p.m.
SEA
-
DFW
Nonstop3h 56m
Delta
Tue 7/46:40 a.m.
DFW
-
SEA
1 stop8h 09m
Delta
Deal found 8/3C$ 322

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 March 2026.

Round-trip from

C$ 300

One-way from

C$ 155

Popular in

December

Cheapest in

August

Average price

C$ 388

Good round-trip deal

C$ 354 or less

Good one-way deal

C$ 217 or less
Frontier
  • Frontier
  • 29/3-4/4
  • 3 total stops
  • 37h 31m total
  • Seattle to Dallas
Search Deals
United Airlines
  • United Airlines
  • 18/4
  • 2 total stops
  • 10h 09m total
  • Seattle to Dallas
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 2026.
Use the filters below to find and compare flights from Seattle to Dallas/Fort Worth Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 21/4

9:50 a.m.-5:26 p.m.

1 stop5h 36m

Dallas/Fort Worth

Fri 24/4

4:27 p.m.-6:50 p.m.

Nonstop4h 23m

C$ 308

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 15/4

1:45 p.m.-11:58 p.m.

1 stop8h 13m

Dallas/Fort Worth

Tue 21/4

7:20 a.m.-8:50 p.m.

2 stops15h 30m

C$ 375
Quickest round-trip

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 22/4

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

Nonstop3h 55m

Dallas/Fort Worth

Thu 23/4

10:30 p.m.-12:44 a.m.

Nonstop4h 14m

C$ 379

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 14/5

6:00 a.m.-12:03 p.m.

Nonstop4h 03m

Dallas/Fort Worth

Fri 22/5

1:03 p.m.-8:28 p.m.

1 stop9h 25m

C$ 417

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 17/4

11:35 p.m.-8:47 a.m.

1 stop7h 12m

Dallas/Fort Worth

Tue 21/4

7:00 a.m.-2:46 p.m.

1 stop9h 46m

C$ 417

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 7/4

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

Nonstop4h 01m

Dallas/Fort Worth

Fri 10/4

6:00 a.m.-8:29 a.m.

Nonstop4h 29m

C$ 428

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 27/3

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

Nonstop4h 01m

Dallas/Fort Worth

Tue 14/4

6:00 a.m.-8:29 a.m.

Nonstop4h 29m

C$ 434

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 14/5

2:50 p.m.-11:54 p.m.

1 stop7h 04m

Dallas/Fort Worth

Fri 22/5

5:58 p.m.-10:03 p.m.

1 stop6h 05m

C$ 437

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 4/4

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

Nonstop4h 01m

Dallas/Fort Worth

Wed 8/4

6:00 a.m.-8:29 a.m.

Nonstop4h 29m

C$ 455

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 4/4

1:32 p.m.-9:15 p.m.

1 stop5h 43m

Dallas/Fort Worth

Wed 8/4

6:20 a.m.-8:43 a.m.

Nonstop4h 23m

C$ 471

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 22 resultsSorted by cheapest first
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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 6 March 2026.

Booking 89 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, October is the cheapest month in which you can book a flight from Seattle to Dallas/Fort Worth Airport (average of C$ 166). Flying from Seattle to Dallas/Fort Worth Airport in May is currently the most expensive (average of C$ 236). 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 March 2026.

It’s typically best to fly out from Seattle to Dallas/Fort Worth Airport in the afternoon. Doing so could potentially save you 30% on the flight price compared to flying in the evening, 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 21 February 2026.

Travelers seeking maximum savings on their Seattle to Dallas/Fort Worth Airport flight should consider departing on Sunday 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 March 2026.
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
12,029 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
12,029 reviews
Alaska Airlines
8.0
Very good
12,029 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Hawaiian Airlines
7.8
Good
2,838 reviews
Alaska Airlines
8.0
Very good
12,029 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.1
Good
11,432 reviews
Alaska Airlines
8.0
Very good
12,029 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Spirit Airlines
6.3
Okay
8,518 reviews
Alaska Airlines
8.0
Very good
12,029 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Frontier
5.7
Fair
3,031 reviews
Alaska Airlines
8.0
Very good
12,029 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 33 flights from Seattle/Tacoma Intl to Dallas/Fort Worth per day from 5 different airlines.

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

    Airlines like Delta, American Airlines, and Alaska Airlines fly from Seattle to Dallas/Fort Worth Airport in about 3h 55m. The time it takes to get you to your destination can typically vary by up to 1h 41m. 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$ 45. Additional round-trip tickets that might be worth considering are offered by American Airlines and Alaska Airlines, with the lowest prices starting at C$ 148 and C$ 158, respectively. You may be able to fly from Seattle to Dallas/Fort Worth Airport for 89% 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 Condor (91%), Qantas Airways (90%) or STARLUX Airlines (85%) 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$ 370 for a flight from Seattle to Dallas/Fort Worth Airport. The cheapest flight overall is C$ 160 while the most popular route, (Seattle/Tacoma Intl - Dallas/Fort Worth) is currently priced at C$ 295.

  • 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, October is the cheapest month in which you can book a flight from Seattle to Dallas/Fort Worth Airport (average of C$ 166). Flying from Seattle to Dallas/Fort Worth Airport in May is currently the most expensive (average of C$ 236). 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 5 airlines flying from Seattle to Dallas/Fort Worth

Discover the top 5 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 March 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 45AverageC$ 263FlexibilityNo cancel feeOn-time62%
Search Frontier flights
American AirlinesCheapestC$ 148AverageC$ 320FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Alaska AirlinesCheapestC$ 158AverageC$ 362FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Hawaiian AirlinesCheapestC$ 166AverageC$ 330FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Spirit AirlinesCheapestC$ 265AverageC$ 315FlexibilityNo 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.

Can Cheapflights notify me if prices for flights from Seattle to Dallas/Fort Worth become cheaper?

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