What is the cheapest airline that flies from Seattle/Tacoma Intl to Dallas/Fort Worth?

Delta, Hawaiian Airlines, and Alaska Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Dallas/Fort Worth

Which airlines fly to Dallas/Fort Worth Airport?

Frontier, Alaska Airlines and American Airlines are the top three most popular airlines that fly to Dallas/Fort Worth Airport from Seattle according to our data. Frontier is the first choice among our users, with 45% of people opting to fly with this airline when travelling to Dallas/Fort Worth Airport. Keep in mind that there are 6 different airlines that fly to Dallas/Fort Worth Airport on a routine basis, so you have a few additional options to choose from.

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?

There are 6 operators available for flights from Seattle/Tacoma Intl Airport to Dallas/Fort Worth Airport as of September 2025.

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.

C$ 104 Cheap Flights from Seattle to Dallas/Fort Worth Airport in 2025/26

Q: How many flights depart from Seattle to Dallas/Fort Worth Airport on average per day?

As of September 2025, 53 flights take off from Seattle and land in Dallas/Fort Worth Airport each day. The most common flight departure time for this route is 1:00p.m., with 49% of daily flights taking off at noon.

Q: How many flights depart from Seattle to Dallas/Fort Worth Airport on average per week?

As of September 2025, 376 flights take off from Seattle and land in Dallas/Fort Worth Airport each week. The most common flight departure day for this route is Fri, with 19% of weekly flights taking off on this day.

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Find the cheapest flights from Seattle to Dallas

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

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

3h 53mdirect

7:10 a.m. - 9:44 a.m.DFW-SEA

4h 34mdirect

C$ 288Delta

Find Deal

Fri, 20 Feb - Tue, 24 Feb

11:20 a.m. - 5:12 p.m.SEA-DFW

3h 52mdirect

10:00 a.m. - 12:32 p.m.DFW-SEA

4h 32mdirect

C$ 296Hawaiian Airlines

Find Deal

Fri, 9 Jan - Wed, 14 Jan

12:59 a.m. - 6:54 a.m.SEA-DFW

3h 55mdirect

6:29 p.m. - 8:46 p.m.DFW-SEA

4h 17mdirect

C$ 311Alaska Airlines

Find Deal

Tue, 14 Oct - Wed, 22 Oct

11:20 a.m. - 5:12 p.m.SEA-DFW

3h 52mdirect

7:15 a.m. - 11:38 a.m.DFW-SEA

6h 23m1 stop

C$ 316Alaska Airlines

Find Deal

Wed, 18 Feb - Tue, 24 Feb

5:55 p.m. - 11:54 p.m.SEA-DFW

3h 59mdirect

7:10 a.m. - 9:50 a.m.DFW-SEA

4h 40mdirect

C$ 320Delta

Find Deal

Mon, 24 Nov - Wed, 3 Dec

8:05 a.m. - 2:12 p.m.SEA-DFW

4h 07mdirect

3:12 p.m. - 5:37 p.m.DFW-SEA

4h 25mdirect

C$ 323Alaska Airlines

Find Deal

Wed, 22 Oct - Wed, 22 Oct

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

3h 55mdirect

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

4h 25mdirect

C$ 324Delta

Find Deal

Fri, 10 Oct - Tue, 14 Oct

12:59 a.m. - 6:54 a.m.SEA-DFW

3h 55mdirect

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

4h 31mdirect

C$ 347Hawaiian Airlines

Find Deal

Fri, 3 Oct - Sat, 4 Oct

5:00 a.m. - 1:17 p.m.SEA-DFW

6h 17m1 stop

5:46 p.m. - 11:15 p.m.DFW-SEA

7h 29m1 stop

C$ 352United Airlines

Find Deal

Sat, 18 Oct - Sat, 18 Oct

3:51 p.m. - 11:44 p.m.SEA-DFW

5h 53m1 stop

3:49 p.m. - 11:05 p.m.DFW-SEA

9h 16m2 stops

C$ 364United Airlines

Find Deal

Thu, 19 Feb - Tue, 24 Feb

Delta flights from Seattle to Dallas/Fort Worth Airport

Our best Delta deals on Seattle to Dallas/Fort Worth Airport flight tickets

Delta

20 Feb

SEA5:35 p.m.Seattle/Tacoma Intl

3h 53m

DFW11:28 p.m.Dallas/Fort Worth

24 Feb

DFW7:10 a.m.Dallas/Fort Worth

4h 34m

SEA9:44 a.m.Seattle/Tacoma Intl

C$ 288

Find similar

Delta

24 Nov

SEA5:55 p.m.Seattle/Tacoma Intl

3h 59m

DFW11:54 p.m.Dallas/Fort Worth

3 Dec

DFW7:10 a.m.Dallas/Fort Worth

4h 40m

SEA9:50 a.m.Seattle/Tacoma Intl

C$ 320

Find similar

Delta

10 Oct

SEA5:55 p.m.Seattle/Tacoma Intl

3h 55m

DFW11:50 p.m.Dallas/Fort Worth

14 Oct

DFW7:10 a.m.Dallas/Fort Worth

4h 25m

SEA9:35 a.m.Seattle/Tacoma Intl

C$ 324

Find similar

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

14 Oct

SEA12:59 a.m.Seattle/Tacoma Intl

3h 55m

DFW6:54 a.m.Dallas/Fort Worth

22 Oct

DFW6:29 p.m.Dallas/Fort Worth

4h 17m

SEA8:46 p.m.Seattle/Tacoma Intl

C$ 311

Find similar

Alaska Airlines

18 Feb

SEA11:20 a.m.Seattle/Tacoma Intl

3h 52m

DFW5:12 p.m.Dallas/Fort Worth

24 Feb

DFW7:15 a.m.Dallas/Fort Worth

6h 23m

1 stop

SEA11:38 a.m.Seattle/Tacoma Intl

C$ 316

Find similar

Alaska Airlines

22 Oct

SEA8:05 a.m.Seattle/Tacoma Intl

4h 07m

DFW2:12 p.m.Dallas/Fort Worth

22 Oct

DFW3:12 p.m.Dallas/Fort Worth

4h 25m

SEA5:37 p.m.Seattle/Tacoma Intl

C$ 322

Find similar

momondo Fare Finder

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 20/2

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

Nonstop3h 53m

Dallas/Fort Worth

Tue 24/2

7:10 a.m.-9:44 a.m.

Nonstop4h 34m

C$ 288

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 9/1

11:20 a.m.-5:12 p.m.

Nonstop3h 52m

Dallas/Fort Worth

Wed 14/1

10:00 a.m.-12:32 p.m.

Nonstop4h 32m

C$ 296

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 14/10

12:59 a.m.-6:54 a.m.

Nonstop3h 55m

Dallas/Fort Worth

Wed 22/10

6:29 p.m.-8:46 p.m.

Nonstop4h 17m

C$ 311

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 18/2

11:20 a.m.-5:12 p.m.

Nonstop3h 52m

Dallas/Fort Worth

Tue 24/2

7:15 a.m.-11:38 a.m.

1 stop6h 23m

C$ 316

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Mon 24/11

5:55 p.m.-11:54 p.m.

Nonstop3h 59m

Dallas/Fort Worth

Wed 3/12

7:10 a.m.-9:50 a.m.

Nonstop4h 40m

C$ 320

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 22/10

8:05 a.m.-2:12 p.m.

Nonstop4h 07m

Dallas/Fort Worth

Wed 22/10

3:12 p.m.-5:37 p.m.

Nonstop4h 25m

C$ 322

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

Fri 3/10

12:59 a.m.-6:54 a.m.

Nonstop3h 55m

Dallas/Fort Worth

Sat 4/10

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

Nonstop4h 31m

C$ 347

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 18/10

5:00 a.m.-1:17 p.m.

1 stop6h 17m

Dallas/Fort Worth

Sat 18/10

5:46 p.m.-11:15 p.m.

1 stop7h 29m

C$ 352

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 19/2

3:51 p.m.-11:44 p.m.

1 stop5h 53m

Dallas/Fort Worth

Tue 24/2

3:49 p.m.-11:05 p.m.

2 stops9h 16m

C$ 364

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 October, then departing from Seattle during the month January is also very affordable. Most momondo users find prices during this month for around C$ 343.

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 Wednesday when prices can be found for as low as C$ 248. 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$ 709.

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 in the afternoon when flights can be purchased for as low as C$ 248. 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$ 413 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$ 395 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$ 331 on momondo.

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

There are 2 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 September 2025, prices for Seattle to Dallas/Fort Worth Airport flights are approximately 20% 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$ 200
Fastest flight time	3h 52m
Direct flights	Every day

The best one-way flight to Dallas/Fort Worth Airport from Seattle in the past 72 hours is C$ 200. The best round-trip flight deal from Seattle to Dallas/Fort Worth Airport found on momondo in the last 72 hours is C$ 283.

The fastest flight from Seattle to Dallas/Fort Worth Airport takes 3h 52m

Direct flights go from Seattle to Dallas/Fort Worth Airport every day.

Search flight deals

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 3h 52m.
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?
There are 6 operators available for flights from Seattle/Tacoma Intl Airport to Dallas/Fort Worth Airport as of September 2025.
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?
Based on momondo bookings for flights between Seattle and Dallas/Fort Worth Airport, the leading plane model is Boeing 737-900 Passenger/BBJ3 (winglets), making up 19.53% of the total bookings. Other popular models include Boeing 737 MAX 9 with 19.18%, Boeing 737-800 Passenger/BBJ2 (winglets) with 18.54%, and Airbus A321-100/200 with 15.48%.
What is the most popular airline from Seattle to Dallas/Fort Worth Airport?
Based on momondo bookings for flights between Seattle and Dallas/Fort Worth Airport, the leading airline is Frontier, making up 41% of the total bookings. Other popular airlines include Alaska Airlines with 28%, American Airlines with 16%, and Hawaiian Airlines with 7%.

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
Delta	PriceFrom C$ 104	Free Cancellation	Rating 7.9 7,954 reviews	Search Delta flights
Frontier	PriceFrom C$ 128	Free Cancellation	Rating 5.8 3,172 reviews	Search Frontier flights
American Airlines	PriceFrom C$ 167	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Hawaiian Airlines	PriceFrom C$ 169	Free Cancellation	Rating 7.8 2,723 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom C$ 181	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Spirit Airlines	PriceFrom C$ 210	Free Cancellation	Rating 6.3 8,015 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 23 times per week, with 10,000 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$ 131 (round-trip), much lower than the average airfare cost of C$ 268 for Alaska Airlines flights on this route.
Delta Flights From Seattle to Dallas/Fort Worth Airport
C$ 75 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$ 237, however, with flight time and availability significantly affecting the price. Delta (7.9/10 from 7,954 user reviews) flies into Dallas/Fort Worth Airport from Seattle 14 times in an average week so prices can vary.

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Saginaw

Fort Worth

Rockwall

Irving

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.

An easier way to manage your Dallas/Fort Worth Airport trip

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Cheap flights from Seattle to Dallas from C$ 165

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 31/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

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Filter for what you want

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Find the cheapest flights from Seattle to Dallas

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

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Delta flights from Seattle to Dallas/Fort Worth Airport

Our best Delta deals on Seattle to Dallas/Fort Worth Airport flight tickets

Alaska Airlines flights from Seattle to Dallas/Fort Worth Airport

Our best Alaska Airlines deals on Seattle to Dallas/Fort Worth Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Dallas/Fort Worth Airport that are best for you.

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 October, then departing from Seattle during the month January is also very affordable. Most momondo users find prices during this month for around C$ 343.

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

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 in the afternoon when flights can be purchased for as low as C$ 248. 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$ 413 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?

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

There are 2 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 September 2025, prices for Seattle to Dallas/Fort Worth Airport flights are approximately 20% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Dallas/Fort Worth?

Delta, Hawaiian Airlines, and Alaska Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Dallas/Fort Worth

Which airlines fly to Dallas/Fort Worth Airport?

How many flights depart from Seattle to Dallas/Fort Worth Airport on average per day?

As of September 2025, 53 flights take off from Seattle and land in Dallas/Fort Worth Airport each day. The most common flight departure time for this route is 1:00p.m., with 49% of daily flights taking off at noon.

How many flights depart from Seattle to Dallas/Fort Worth Airport on average per week?

As of September 2025, 376 flights take off from Seattle and land in Dallas/Fort Worth Airport each week. The most common flight departure day for this route is Fri, with 19% of weekly flights taking off on this day.

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

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

Fastest flight time

Direct flights

How far is Seattle/Tacoma Intl to Dallas/Fort Worth by plane?

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

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?

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

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

Alaska Airlines Flights From Seattle to Dallas/Fort Worth Airport

Delta Flights From Seattle to Dallas/Fort Worth Airport

Travelling to a place near Dallas?

Why use momondo?

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

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

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

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

An easier way to manage your Dallas/Fort Worth Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Dallas

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Popular flights according to clicks in the last 7 days on momondo