Cheap flights from Seattle to Dallas from C$ 135

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Dallas departing on 1/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:05 a.m. - 5:06 p.m.
SEA
-
DFW
9h 01m1 stop
Delta Logo
4:25 p.m. - 6:55 p.m.
DFW
-
SEA
4h 30mdirect
C$ 258Delta
Fri, 9 Jan - Tue, 13 Jan
Alaska Airlines Logo
1:33 a.m. - 7:13 a.m.
SEA
-
DFW
3h 40mdirect
Alaska Airlines Logo
10:00 a.m. - 12:24 p.m.
DFW
-
SEA
4h 24mdirect
C$ 264Alaska Airlines
Mon, 23 Mar - Tue, 24 Mar
Delta Logo
5:59 p.m. - 11:55 p.m.
SEA
-
DFW
3h 56mdirect
Delta Logo
4:29 p.m. - 6:54 p.m.
DFW
-
SEA
4h 25mdirect
C$ 272Delta
Wed, 18 Mar - Tue, 31 Mar
Alaska Airlines Logo
8:25 a.m. - 5:14 p.m.
SEA
-
DFW
6h 49m1 stop
Alaska Airlines Logo
6:14 p.m. - 8:45 p.m.
DFW
-
SEA
4h 31mdirect
C$ 277Alaska Airlines
Mon, 2 Feb - Mon, 2 Feb
Delta Logo
5:59 p.m. - 11:55 p.m.
SEA
-
DFW
3h 56mdirect
Delta Logo
3:30 p.m. - 8:50 p.m.
DFW
-
SEA
7h 20m1 stop
C$ 286Delta
Wed, 18 Mar - Mon, 30 Mar
Delta Logo
7:25 a.m. - 9:16 p.m.
SEA
-
DFW
11h 51m2 stops
Delta Logo
6:00 a.m. - 8:33 a.m.
DFW
-
SEA
4h 33mdirect
C$ 291Delta
Wed, 11 Feb - Sun, 22 Feb
United Airlines Logo
12:40 p.m. - 9:34 p.m.
SEA
-
DFW
6h 54m1 stop
United Airlines Logo
8:55 a.m. - 1:57 p.m.
DFW
-
SEA
7h 02m1 stop
C$ 293United Airlines
Sat, 17 Jan - Sun, 18 Jan
Delta Logo
7:25 a.m. - 11:54 p.m.
SEA
-
DFW
14h 29m2 stops
Delta Logo
6:45 a.m. - 12:57 p.m.
DFW
-
SEA
8h 12m1 stop
C$ 298Delta
Mon, 12 Jan - Sat, 17 Jan
Delta Logo
5:30 a.m. - 1:47 p.m.
SEA
-
DFW
6h 17m1 stop
Delta Logo
3:30 p.m. - 11:53 p.m.
DFW
-
SEA
10h 23m1 stop
C$ 299Delta
Wed, 18 Mar - Fri, 27 Mar
Delta Logo
5:25 a.m. - 1:41 p.m.
SEA
-
DFW
6h 16m1 stop
Delta Logo
6:45 a.m. - 12:57 p.m.
DFW
-
SEA
8h 12m1 stop
C$ 301Delta
Sat, 17 Jan - Fri, 23 Jan

Delta flights from Seattle to Dallas/Fort Worth Airport

Our best Delta deals on Seattle to Dallas/Fort Worth Airport flight tickets
Delta
9 Jan
SEA6:05 a.m.Seattle/Tacoma Intl
9h 01m
1 stop
DFW5:06 p.m.Dallas/Fort Worth
13 Jan
DFW4:25 p.m.Dallas/Fort Worth
4h 30m
SEA6:55 p.m.Seattle/Tacoma Intl
Delta
15 Jan
SEA5:55 p.m.Seattle/Tacoma Intl
3h 50m
DFW11:45 p.m.Dallas/Fort Worth
21 Jan
DFW6:20 a.m.Dallas/Fort Worth
4h 33m
SEA8:53 a.m.Seattle/Tacoma Intl
Delta
16 Jan
SEA5:55 p.m.Seattle/Tacoma Intl
3h 50m
DFW11:45 p.m.Dallas/Fort Worth
25 Jan
DFW6:45 a.m.Dallas/Fort Worth
8h 12m
1 stop
SEA12:57 p.m.Seattle/Tacoma Intl

Alaska Airlines flights from Seattle to Dallas/Fort Worth Airport

Our best Alaska Airlines deals on Seattle to Dallas/Fort Worth Airport flight tickets
Alaska Airlines
23 Mar
SEA1:33 a.m.Seattle/Tacoma Intl
3h 40m
DFW7:13 a.m.Dallas/Fort Worth
24 Mar
DFW10:00 a.m.Dallas/Fort Worth
4h 24m
SEA12:24 p.m.Seattle/Tacoma Intl
Alaska Airlines
2 Feb
SEA8:25 a.m.Seattle/Tacoma Intl
6h 49m
1 stop
DFW5:14 p.m.Dallas/Fort Worth
2 Feb
DFW6:14 p.m.Dallas/Fort Worth
4h 31m
SEA8:45 p.m.Seattle/Tacoma Intl
Alaska Airlines
14 Feb
SEA6:01 p.m.Seattle/Tacoma Intl
3h 58m
DFW11:59 p.m.Dallas/Fort Worth
24 Feb
DFW7:27 p.m.Dallas/Fort Worth
4h 34m
SEA10:01 p.m.Seattle/Tacoma Intl

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Dallas/Fort Worth Airport 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, momondo users made 96,600 searches. Data last updated 20 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

Fly to

Route

Depart

Return

Price

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 9/1

6:05 a.m.-5:06 p.m.

1 stop9h 01m

Dallas/Fort Worth

Tue 13/1

4:25 p.m.-6:55 p.m.

Nonstop4h 30m

C$ 258

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Mon 23/3

1:33 a.m.-7:13 a.m.

Nonstop3h 40m

Dallas/Fort Worth

Tue 24/3

10:00 a.m.-12:24 p.m.

Nonstop4h 24m

C$ 264

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 18/3

5:59 p.m.-11:55 p.m.

Nonstop3h 56m

Dallas/Fort Worth

Tue 31/3

4:29 p.m.-6:54 p.m.

Nonstop4h 25m

C$ 272

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Mon 2/2

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

1 stop6h 49m

Dallas/Fort Worth

Mon 2/2

6:14 p.m.-8:45 p.m.

Nonstop4h 31m

C$ 277

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 18/3

5:59 p.m.-11:55 p.m.

Nonstop3h 56m

Dallas/Fort Worth

Mon 30/3

3:30 p.m.-8:50 p.m.

1 stop7h 20m

C$ 286

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 11/2

7:25 a.m.-9:16 p.m.

2 stops11h 51m

Dallas/Fort Worth

Sun 22/2

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

Nonstop4h 33m

C$ 291

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 17/1

12:40 p.m.-9:34 p.m.

1 stop6h 54m

Dallas/Fort Worth

Sun 18/1

8:55 a.m.-1:57 p.m.

1 stop7h 02m

C$ 293

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Mon 12/1

7:25 a.m.-11:54 p.m.

2 stops14h 29m

Dallas/Fort Worth

Sat 17/1

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

1 stop8h 12m

C$ 298

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 18/3

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

1 stop6h 17m

Dallas/Fort Worth

Fri 27/3

3:30 p.m.-11:53 p.m.

1 stop10h 23m

C$ 299

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 17/1

5:25 a.m.-1:41 p.m.

1 stop6h 16m

Dallas/Fort Worth

Fri 23/1

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

1 stop8h 12m

C$ 301

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dallas from

How to get the cheapest flight ticket from Seattle to Dallas/Fort Worth Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Dallas/Fort Worth Airport?

If you are unable to visit Dallas/Fort Worth Airport during the month of August, then departing from Seattle during the month January is also very affordable. Most momondo users find prices during this month for around C$ 355.

What is the cheapest day to depart on your flight to Dallas/Fort Worth Airport?

The cheapest day to depart from Seattle to Dallas/Fort Worth Airport is on a Friday when prices can be found for as low as C$ 297. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 555.

What is the cheapest time of day to depart on your flight to Dallas/Fort Worth Airport?

The cheapest time of day to fly to Dallas/Fort Worth Airport is at noon when flights can be purchased for as low as C$ 311. In the morning is when there is more demand to fly to Dallas/Fort Worth Airport, so prices are often more expensive at around C$ 432 per ticket.

What is the cheapest Seattle/Tacoma Intl to Dallas/Fort Worth flight route?

Fly from Seattle/Tacoma Intl to Dallas/Fort Worth for the best Seattle/Tacoma Intl - Dallas/Fort Worth flight prices

How far in advance should I book a flight to Dallas/Fort Worth Airport?

You are more likely to see cheaper flights to Dallas/Fort Worth Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Dallas/Fort Worth Airport for around C$ 406 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dallas/Fort Worth Airport from Seattle for as low as C$ 341 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Dallas/Fort Worth flights?

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Dallas/Fort Worth flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seattle to Dallas/Fort Worth Airport flight prices changed over time?

As of December 2025, prices for Seattle to Dallas/Fort Worth Airport flights are approximately 17% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Dallas/Fort Worth Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Dallas/Fort Worth Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Dallas/Fort Worth Airport (SEA to DFW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Dallas/Fort Worth Airport

Best price found

C$ 96

Fastest flight time

4h 00m

Direct flights

Every day
The best one-way flight to Dallas/Fort Worth Airport from Seattle in the past 72 hours is C$ 96. The best round-trip flight deal from Seattle to Dallas/Fort Worth Airport found on momondo in the last 72 hours is C$ 512.
The fastest flight from Seattle to Dallas/Fort Worth Airport takes 4h 00m
Direct flights go from Seattle to Dallas/Fort Worth Airport every day.
  • How far is Seattle/Tacoma Intl to Dallas/Fort Worth by plane?

    The straight-line distance from Seattle/Tacoma Intl to Dallas/Fort Worth is 2677.1 km. By plane, this route typically takes 4h 00m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Dallas/Fort Worth Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Dallas/Fort Worth Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Dallas/Fort Worth Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Dallas/Fort Worth Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Dallas/Fort Worth Airport.

  • What documentation or ID do you need to fly to Dallas/Fort Worth Airport?

    The travel and health documents required for your trip to Dallas/Fort Worth Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Dallas/Fort Worth Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Seattle to Dallas/Fort Worth Airport?

  • What is the most popular airline from Seattle to Dallas/Fort Worth Airport?

Best airlines flying from Seattle to Dallas/Fort Worth Airport

Compare and see reviews for airlines that fly from Seattle to Dallas/Fort Worth Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom C$ 103Free CancellationRating
5.8
3,082 reviews
Search Frontier flights
DeltaPriceFrom C$ 104Free CancellationRating
7.9
8,021 reviews
Search Delta flights
Alaska AirlinesPriceFrom C$ 163Free CancellationRating
8.0
11,492 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom C$ 166Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
Hawaiian AirlinesPriceFrom C$ 168Free CancellationRating
7.8
2,821 reviews
Search Hawaiian Airlines flights
Spirit AirlinesPriceFrom C$ 210Free CancellationRating
6.3
8,191 reviews
Search Spirit Airlines flights
  • Alaska Airlines Flights From Seattle to Dallas/Fort Worth Airport

    Alaska Airlines flies from Seattle to Dallas/Fort Worth Airport around 19 times per week, with 11,491 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Seattle to Dallas/Fort Worth Airport in the last 72 hours was C$ 163 (round-trip), much lower than the average airfare cost of C$ 368 for Alaska Airlines flights on this route.

  • Delta Flights From Seattle to Dallas/Fort Worth Airport

    C$ 104 is the best Delta flight deal from Seattle to Dallas/Fort Worth Airport found on momondo over the last 72 hours. The average Delta ticket price found was closer to C$ 329, however, with flight time and availability significantly affecting the price. Delta (7.9/10 from 8,018 user reviews) flies into Dallas/Fort Worth Airport from Seattle 10 times in an average week so prices can vary.

Travelling to a place near Dallas?

Book flights to Dallas if you plan to visit one of these locations
Addison
Grapevine
Fort Worth
Saginaw
Frisco
Irving
Lewisville
Richardson

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Dallas?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Dallas from Seattle.

Can I find flights from Seattle to Dallas with flexible booking policies on momondo?

Yes. All flights to Dallas from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seattle to Dallas?

Once all potential Seattle to Dallas flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Dallas right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Dallas flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Mon 19/1
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