Cheap flights from Seattle to Dallas from $108

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 9/22. 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

Frontier Logo
8:43 pm - 9:23 amSEA-DFW
10h 40m1 stop
Frontier Logo
6:35 am - 1:26 pmDFW-SEA
8h 51m1 stop
$166Frontier
Find Deal
Wed, Oct 22 - Fri, Oct 24
Frontier Logo
10:16 am - 4:13 pmSEA-DFW
3h 57mnonstop
Frontier Logo
6:05 pm - 5:44 pmDFW-SEA
25h 39m1 stop
$167Frontier
Find Deal
Fri, Oct 10 - Sun, Oct 12
Frontier Logo
8:31 pm - 6:40 pmSEA-DFW
20h 09m1 stop
Frontier Logo
10:45 pm - 3:41 pmDFW-SEA
18h 56m1 stop
$168Frontier
Find Deal
Fri, Sep 19 - Sun, Sep 21
Frontier Logo
7:00 am - 11:00 pmSEA-DFW
14h 00m1 stop
Frontier Logo
7:45 am - 10:59 pmDFW-SEA
17h 14m1 stop
$169Frontier
Find Deal
Sat, Sep 13 - Tue, Sep 16
Frontier Logo
10:16 am - 4:13 pmSEA-DFW
3h 57mnonstop
Frontier Logo
6:35 am - 1:26 pmDFW-SEA
8h 51m1 stop
$171Frontier
Find Deal
Fri, Oct 10 - Fri, Oct 17
Frontier Logo
4:26 pm - 1:59 amSEA-DFW
7h 33m1 stop
Frontier Logo
6:05 pm - 5:44 pmDFW-SEA
25h 39m1 stop
$172Frontier
Find Deal
Thu, Oct 9 - Sun, Oct 12
Frontier Logo
7:00 am - 9:15 pmSEA-DFW
12h 15m1 stop
Frontier Logo
5:14 am - 12:07 pmDFW-SEA
8h 53m1 stop
$173Frontier
Find Deal
Tue, Sep 16 - Mon, Oct 13
Frontier Logo
7:00 am - 11:00 pmSEA-DFW
14h 00m1 stop
Frontier Logo
10:25 pm - 12:07 pmDFW-SEA
15h 42m1 stop
$175Frontier
Find Deal
Sat, Oct 4 - Tue, Oct 14
 Logo
12:58 am - 7:00 amSEA-DFW
4h 02mnonstop
 Logo
7:35 am - 12:07 pmDFW-SEA
6h 32m1 stop
Mon, Sep 22 - Tue, Oct 7
Alaska Airlines Logo
1:37 pm - 7:39 pmSEA-DFW
4h 02mnonstop
Alaska Airlines Logo
8:50 pm - 11:25 pmDFW-SEA
4h 35mnonstop
$219Alaska Airlines
Find Deal
Tue, Oct 14 - Sat, Nov 1

Frontier flights from Seattle to Dallas/Fort Worth Airport

Our best Frontier deals on Seattle to Dallas/Fort Worth Airport flight tickets
Frontier
Oct 22
SEA8:43 pmSeattle/Tacoma Intl
10h 40m
1 stop
DFW9:23 amDallas/Fort Worth
Oct 24
DFW6:35 amDallas/Fort Worth
8h 51m
1 stop
SEA1:26 pmSeattle/Tacoma Intl
Frontier
Oct 10
SEA10:16 amSeattle/Tacoma Intl
3h 57m
DFW4:13 pmDallas/Fort Worth
Oct 12
DFW6:05 pmDallas/Fort Worth
25h 39m
1 stop
SEA5:44 pmSeattle/Tacoma Intl
Frontier
Sep 19
SEA8:31 pmSeattle/Tacoma Intl
20h 09m
1 stop
DFW6:40 pmDallas/Fort Worth
Sep 21
DFW10:45 pmDallas/Fort Worth
18h 56m
1 stop
SEA3:41 pmSeattle/Tacoma Intl

American Airlines flights from Seattle to Dallas/Fort Worth Airport

Our best American Airlines deals on Seattle to Dallas/Fort Worth Airport flight tickets
American Airlines
Aug 30
SEA3:15 pmSeattle/Tacoma Intl
6h 03m
1 stop
DFW11:18 pmDallas/Fort Worth
Sep 3
DFW7:02 pmDallas/Fort Worth
4h 21m
SEA9:23 pmSeattle/Tacoma Intl
American Airlines
Aug 27
SEA3:43 pmSeattle/Tacoma Intl
4h 02m
DFW9:45 pmDallas/Fort Worth
Aug 31
DFW12:25 pmDallas/Fort Worth
6h 23m
1 stop
SEA4:48 pmSeattle/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 832,500 searches. Data last updated August 21, 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

Wed 10/22

8:43 pm-9:23 am

1 stop10h 40m

Dallas/Fort Worth

Fri 10/24

6:35 am-1:26 pm

1 stop8h 51m

$166

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 10/10

10:16 am-4:13 pm

Nonstop3h 57m

Dallas/Fort Worth

Sun 10/12

6:05 pm-5:44 pm

1 stop25h 39m

$167

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 9/19

8:31 pm-6:40 pm

1 stop20h 09m

Dallas/Fort Worth

Sun 9/21

10:45 pm-3:41 pm

1 stop18h 56m

$168

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 9/13

7:00 am-11:00 pm

1 stop14h 00m

Dallas/Fort Worth

Tue 9/16

7:45 am-10:59 pm

1 stop17h 14m

$169

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 10/10

10:16 am-4:13 pm

Nonstop3h 57m

Dallas/Fort Worth

Fri 10/17

6:35 am-1:26 pm

1 stop8h 51m

$171

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 10/9

4:26 pm-1:59 am

1 stop7h 33m

Dallas/Fort Worth

Sun 10/12

6:05 pm-5:44 pm

1 stop25h 39m

$172

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 9/16

7:00 am-9:15 pm

1 stop12h 15m

Dallas/Fort Worth

Mon 10/13

5:14 am-12:07 pm

1 stop8h 53m

$173

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 10/4

7:00 am-11:00 pm

1 stop14h 00m

Dallas/Fort Worth

Tue 10/14

10:25 pm-12:07 pm

1 stop15h 42m

$175

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Mon 9/22

12:58 am-7:00 am

Nonstop4h 02m

Dallas/Fort Worth

Tue 10/7

7:35 am-12:07 pm

1 stop6h 32m

$191

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 10/14

1:37 pm-7:39 pm

Nonstop4h 02m

Dallas/Fort Worth

Sat 11/1

8:50 pm-11:25 pm

Nonstop4h 35m

$219

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?

The cheapest month to fly to Dallas/Fort Worth Airport from Seattle is in October. Flight prices, which tend to average around $216, are often lower during this time because this is during the off-season. If you’re not able to fly to Dallas/Fort Worth Airport in October, then January is your next best option. Flight prices from Seattle to Dallas/Fort Worth Airport during January average around $246.

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

On average, the least expensive day to fly to Dallas/Fort Worth Airport from Seattle is on a Friday. momondo users have found tickets for Friday departures for as low as $437. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Dallas/Fort Worth Airport for around $579.

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

Flying to Dallas/Fort Worth Airport from Seattle in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $306 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $529 on average. Flights to Dallas/Fort Worth Airport from Seattle in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $283 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 $232 on momondo.

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

There are 4 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 August 2025, prices for Seattle to Dallas/Fort Worth Airport flights are approximately 2% 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

$195

Fastest flight time

3h 50m

Direct flights

Every day
The best one-way flight to Dallas/Fort Worth Airport from Seattle in the past 72 hours is $195. The best round-trip flight deal from Seattle to Dallas/Fort Worth Airport found on momondo in the last 72 hours is $313.
The fastest flight from Seattle to Dallas/Fort Worth Airport takes 3h 50m
Direct flights go from Seattle to Dallas/Fort Worth Airport every day.
  • How far is Seattle/Tacoma Intl to Dallas/Fort Worth by plane?

    Dallas/Fort Worth is 1663.5 mi away from Seattle/Tacoma Intl. Flights usually cover this in 3h 57m, depending on flying conditions and air traffic around both airports.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 necessary travel and health documents for your Dallas/Fort Worth Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • 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 $75Free CancellationRating
5.8
3,207 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $94Free CancellationRating
6.3
8,035 reviews
Search Spirit Airlines flights
DeltaPriceFrom $131Free CancellationRating
7.9
7,981 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $134Free CancellationRating
7.8
2,672 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $178Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $179Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $207Free CancellationRating
8.0
4,245 reviews
Search Southwest flights
United AirlinesPriceFrom $254Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights
  • Alaska Airlines Flights From Seattle to Dallas/Fort Worth Airport

    The lowest priced Alaska Airlines flight from Seattle to Dallas/Fort Worth Airport from the last 72 hours was $178. Generally, Alaska Airlines has 17 flights on this route every week with an average price of $331. Alaska Airlines is rated 8.0/10 by our users.

  • Delta Flights From Seattle to Dallas/Fort Worth Airport

    The best Delta deal for Seattle to Dallas/Fort Worth Airport flight tickets found on momondo in the last 72 hours was $131, round-trip. It should be noted that an average Delta flight deal for this route in this time was higher, at $270 round-trip. Delta operates 10 flights out of Seattle into Dallas/Fort Worth Airport in an average week, so prices vary by time and availability. 7,981 Delta reviews by users on momondo have scored the airline at 7.9/10.

Traveling to a place near Dallas?

Book flights to Dallas if you plan to visit one of these locations
Fort Worth
Arlington
Frisco
Grapevine
Irving
Plano
Denton
Grand Prairie
Thackerville
Garland
McKinney
Durant
Rockwall
Richardson
Lewisville
Ardmore
Addison
Allen
Waxahachie
Granbury

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Dallas. Millions of users trust and use momondo every year so you are in good hands.

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
Tue 8/26
Tue 9/2

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