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$112+ Cheap flights from Seattle (SEA) to Dallas/Fort Worth (DFW)

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dallas/Fort Worth are usually found in October or January, booked 58 days in advance, depart on a Friday or Wednesday and return on a Friday

Cheap 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 September 17, 2025.

Round-trip from

$196
(Delta)

One-way from

$112
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$292

Good round-trip deal

$316 or less

Good one-way deal

$186 or less
From Seattle/Tacoma Intl to Dallas/Fort Worth
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One-way flight from Seattle/Tacoma Intl to Dallas/Fort Worth
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Highest demand for flights based on searches. 2% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Dallas/Fort Worth.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Dallas/Fort Worth.
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Find flight deals from Seattle to Dallas/Fort Worth

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 September 17, 2025.

This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/72:10 pmSEA - DFW
1 stop7h 25mDelta
Tue 10/147:10 amDFW - SEA
Nonstop4h 25mDelta
Deal found 9/16$196
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1010:16 amSEA - DFW
Nonstop3h 57mFrontier
Mon 10/136:30 amDFW - SEA
Nonstop4h 18mFrontier
Deal found 9/15$197
This CheapOair deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:05 pmSEA - DFW
1 stop7h 21mFrontier
Mon 9/2910:25 pmDFW - SEA
1 stop26h 34mFrontier
Deal found 9/16$198
This CheapOair deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:00 amSEA - DFW
1 stop12h 15mFrontier
Sat 9/272:22 pmDFW - SEA
1 stop8h 17mFrontier
Deal found 9/16$199
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/298:31 pmSEA - DFW
1 stop20h 14mFrontier
Fri 10/310:25 pmDFW - SEA
1 stop24h 14mFrontier
Deal found 9/14$200
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/612:30 pmSEA - DFW
2 stops15h 10mFrontier
Fri 10/176:35 amDFW - SEA
1 stop8h 51mFrontier
Deal found 9/15$201
This CheapOair deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/211:02 pmSEA - DFW
1 stop22h 10mFrontier
Wed 10/2910:34 pmDFW - SEA
1 stop21h 58mFrontier
Deal found 9/17$202
This CheapOair deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:00 amSEA - DFW
1 stop12h 15mFrontier
Wed 10/17:45 amDFW - SEA
1 stop17h 14mFrontier
Deal found 9/17$204
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:12 amSEA - DFW
1 stop28h 59mFrontier
Sun 10/55:03 pmDFW - SEA
1 stop20h 38mFrontier
Deal found 9/15$205
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:55 pmSEA - DFW
Nonstop3h 59mDelta
Sat 12/64:27 pmDFW - SEA
Nonstop4h 28mDelta
Deal found 9/16$206
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/71:02 pmSEA - DFW
1 stop9h 17mFrontier
Fri 10/176:30 amDFW - SEA
Nonstop4h 18mFrontier
Deal found 9/15$207

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 2,558,603 searches. Data last updated September 17, 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

Mon 11/24

5:55 pm-11:54 pm

Nonstop3h 59m

Dallas/Fort Worth

Thu 11/27

7:10 am-9:50 am

Nonstop4h 40m

$237

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 10/22

5:55 pm-11:50 pm

Nonstop3h 55m

Dallas/Fort Worth

Fri 10/31

4:20 pm-6:37 pm

Nonstop4h 17m

$238

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 10/17

12:59 am-6:54 am

Nonstop3h 55m

Dallas/Fort Worth

Wed 10/29

8:50 pm-11:25 pm

Nonstop4h 35m

$239

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 11/1

1:40 pm-7:46 pm

Nonstop4h 06m

Dallas/Fort Worth

Mon 11/3

8:50 pm-11:25 pm

Nonstop4h 35m

$248

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 10/14

12:59 am-6:54 am

Nonstop3h 55m

Dallas/Fort Worth

Mon 10/20

8:39 pm-11:08 pm

Nonstop4h 29m

$248

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 10/29

1:40 pm-7:46 pm

Nonstop4h 06m

Dallas/Fort Worth

Thu 10/30

10:00 am-12:31 pm

Nonstop4h 31m

$248

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 10/15

5:55 pm-11:50 pm

Nonstop3h 55m

Dallas/Fort Worth

Wed 10/22

7:10 am-9:35 am

Nonstop4h 25m

$248

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 11/4

12:58 am-6:55 am

Nonstop3h 57m

Dallas/Fort Worth

Thu 11/6

10:00 am-12:31 pm

Nonstop4h 31m

$248

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 12/9

9:30 am-3:30 pm

Nonstop4h 00m

Dallas/Fort Worth

Mon 12/15

4:27 pm-6:55 pm

Nonstop4h 28m

$248

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 10/17

12:59 am-6:54 am

Nonstop3h 55m

Dallas/Fort Worth

Mon 10/20

8:39 pm-11:08 pm

Nonstop4h 29m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 21 results
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The best insider tips for Seattle to Dallas/Fort Worth Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Dallas/Fort Worth Airport trip
Airlines
Alaska Airlines

Alaska Airlines offers Wi-Fi for a flat fee, ideal for business travelers needing to work.


Alaska's MileagePlan awards miles based on distance, not ticket price, offering great value.

Read more about Alaska Airlinesby Robert Schrader
Frontier

Frontier offers low fares but charges for extras like carry-on bags and seat selection.


Frontier's UpFront Plus seats guarantee an empty middle seat for added comfort.

Read more about Frontierby Marisa Garcia
Airports
SEA

Plan to arrive at SEA at least two hours before your flight due to potentially long security lines, especially during peak travel periods.

Read more about SEAby Brandon Schultz
DFW

Use the DART Orange Line to travel from downtown Dallas to DFW, with a convenient station at Terminal A.

Read more about DFWby Chris Dong
Our travel experts
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Chris Dong

Chris Dong

Expert on DFW

Chris Dong

Chris Dong

Chris is a consumer travel reporter covering aviation, trending travel news, hotels, and loyalty programs—all for leading global publications like Travel + Leisure, The Washington Post, AFAR, and more. In addition to writing, Chris is a video host for Travel + Leisure, giving consumers an inside look at the latest in air travel.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

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 September 12, 2025.

Booking 58 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, August is the cheapest month in which you can book a flight from Seattle to Dallas/Fort Worth Airport (average of $216). Flying from Seattle to Dallas/Fort Worth Airport in March is currently the most expensive (average of $295). 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 September 17, 2025.

One of the essential ways to save on airfare from Seattle to Dallas/Fort Worth Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 42% on airfare.

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 September 14, 2025.

Travelers seeking maximum savings on their Seattle to Dallas/Fort Worth Airport flight should consider departing on Thursday 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 September 17, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian Airlines from Seattle to Dallas/Fort Worth Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

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.
Delta
8.0
Very good
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

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
2,729 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

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
3,173 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

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?

    For a flight from Seattle to Dallas/Fort Worth, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 44 outbound flights to Dallas/Fort Worth per day. 8 airlines have flights to Dallas/Fort Worth from Seattle/Tacoma Intl on a regular basis.

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

    For as low as $239, Delta can have you in Dallas/Fort Worth Airport from Seattle in 3h 55m. There are 1657 mi between Seattle and Dallas/Fort Worth Airport. Most flights are nonstop.

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

    According to our current data, Frontier ($76), Spirit Airlines ($109), and Delta ($131) offers the cheapest pricing from Seattle to Dallas/Fort Worth Airport. You may be able to fly from Seattle to Dallas/Fort Worth Airport for 73% 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 Iberia (79%), KLM (75%) or American Airlines (74%) 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?

    While on average a flight from Seattle to Dallas/Fort Worth Airport is generally $831, our data shows the cheapest flight currently is $109. When looking at the most popular route, (Seattle/Tacoma Intl - Dallas/Fort Worth), you can expect to pay $175 for that flight.

  • Where are the most common layover locations when flying from Seattle to Dallas/Fort Worth Airport?

    Of the flights from Seattle to Dallas/Fort Worth Airport that have layovers, most of them stop in Las Vegas.

  • What are some popular things to do or see while on a layover in Las Vegas?

    The majority of Las Vegas visitors spend their time at Fremont Street Experience, Fountains of Bellagio, and The Colosseum at Caesars Palace. Fremont Street Experience, Fountains of Bellagio, and The Colosseum at Caesars Palace can be visited by traveling about 5.9 mi, 2.3 mi, and 2.6 mi respectively from Las Vegas Harry Reid Intl. Those landing in Las Vegas looking to spend some time exploring during their layover can rent a car for about $59 per day.

  • Where are the least popular layover locations for Seattle to Dallas/Fort Worth Airport flights?

    The least popular layover on flights from Seattle to Dallas/Fort Worth Airport is Denver.

  • 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, August is the cheapest month in which you can book a flight from Seattle to Dallas/Fort Worth Airport (average of $216). Flying from Seattle to Dallas/Fort Worth Airport in March is currently the most expensive (average of $295). 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

Traveling to a place near Dallas/Fort Worth Airport?

Book flights to Dallas/Fort Worth Airport if you plan to visit one of these locations
Fort Worth
Arlington
Allen
Frisco
Mansfield
Grapevine
Denton
Garland
Cedar Hill
Plano
Durant
McKinney
Rockwall
Richardson
Weatherford
Denison
Burleson
Carrollton
Granbury
Cleburne

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Top 8 airlines flying from Seattle to Dallas/Fort Worth

Discover the top 8 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 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$76Average$183FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$109Average$228FlexibilityNo cancel feeOn-time65%
DeltaCheapest$131Average$269FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$134Average$292FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$184Average$327FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$187Average$337FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$207Average$297FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$254Average$482FlexibilityNo cancel feeOn-time69%

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