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$117+ Cheap flights from Seattle (SEA) to Dallas

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
Aug 17 — Aug 241
Sun 8/17
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dallas 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

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Dallas (A78). 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 August 12, 2025.

Round-trip from

$176
(FlightHub)

One-way from

$117
(CheapOair)

Popular in

December

Cheapest in

October

Average price

$277
From Seattle/Tacoma Intl to Dallas
Search Deals
One-way flight from Seattle/Tacoma Intl to Dallas
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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 ($7 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Seattle to Dallas

Cheapest flights from Seattle to Dallas
Explore the most affordable flight options available from Seattle to Dallas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2025.

This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1710:16 amSEA - DFW
Nonstop3h 57mFrontier
Mon 10/206:30 amDFW - SEA
Nonstop4h 18mFrontier
Deal found 8/11$176
This Frontier deal was found by Cheapflights users on 8/12. 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
Mon 10/136:30 amDFW - SEA
Nonstop4h 18mFrontier
Deal found 8/12$184
This CheapOair deal was found by Cheapflights users on 8/10. 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 8/159:29 amSEA - DFW
Nonstop3h 51mFrontier
Mon 8/186:10 amDFW - SEA
Nonstop4h 24mFrontier
Deal found 8/10$185
This CheapOair deal was found by Cheapflights users on 8/11. 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 10/66:12 amSEA - DFW
1 stop29h 00mFrontier
Mon 10/136:30 amDFW - SEA
Nonstop4h 18mFrontier
Deal found 8/11$187
This Frontier deal was found by Cheapflights users on 8/11. 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.
Wed 10/88:43 pmSEA - DFW
1 stop10h 40mFrontier
Mon 10/136:30 amDFW - SEA
Nonstop4h 18mFrontier
Deal found 8/11$188
This CheapOair deal was found by Cheapflights users on 8/10. 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 10/161:02 pmSEA - DFW
1 stop9h 22mFrontier
Mon 10/206:30 amDFW - SEA
Nonstop4h 18mFrontier
Deal found 8/10$191
This CheapOair deal was found by Cheapflights users on 8/11. 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 10/91:02 pmSEA - DFW
1 stop9h 22mFrontier
Mon 10/136:30 amDFW - SEA
Nonstop4h 18mFrontier
Deal found 8/11$197
This Delta deal was found by Cheapflights users on 8/12. 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.
Thu 11/275:35 pmSEA - DFW
Nonstop3h 54mDelta
Wed 12/37:10 amDFW - SEA
Nonstop4h 35mDelta
Deal found 8/12$199
This CheapOair deal was found by Cheapflights users on 8/10. 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.
Sat 10/118:43 pmSEA - DFW
1 stop10h 40mFrontier
Mon 10/136:30 amDFW - SEA
Nonstop4h 18mFrontier
Deal found 8/10$200
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/254:40 pmSEA - DFW
1 stop14h 40mMultiple Airlines
Sun 8/316:15 amDFW - SEA
Nonstop4h 17mMultiple Airlines
Deal found 8/11$202
This Southwest deal was found by Cheapflights users on 8/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:35 amSEA - DAL
1 stop5h 20mSouthwest
Tue 10/1411:05 amDAL - SEA
1 stop6h 00mSouthwest
Deal found 8/11$210
This Southwest deal was found by Cheapflights users on 8/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/115:45 amSEA - DAL
2 stops9h 15mSouthwest
Tue 10/143:45 pmDAL - SEA
2 stops9h 15mSouthwest
Deal found 8/11$221

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Dallas 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 August 12, 2025.
Use the filters below to find and compare flights from Seattle to Dallas that are best for you.

Fly from

Seattle

Fly to

Dallas

Route

Depart

Return

Price

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 10/11

8:43 pm-9:23 am

1 stop10h 40m

Dallas/Fort Worth

Mon 10/13

6:30 am-8:48 am

Nonstop4h 18m

$200

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 9/13

7:00 am-11:00 pm

1 stop14h 00m

Dallas/Fort Worth

Sat 9/20

2:22 pm-8:39 pm

1 stop8h 17m

$204

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 9/2

6:41 am-9:20 am

1 stop24h 39m

Dallas/Fort Worth

Tue 9/9

7:45 am-10:59 pm

1 stop17h 14m

$204

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 8/23

12:40 pm-11:10 pm

1 stop8h 30m

Dallas/Fort Worth

Tue 8/26

6:30 pm-11:01 pm

1 stop6h 31m

$204

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 9/16

7:00 am-9:15 pm

1 stop12h 15m

Dallas/Fort Worth

Tue 9/30

7:45 am-10:59 pm

1 stop17h 14m

$204

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 9/20

7:00 am-11:00 pm

1 stop14h 00m

Dallas/Fort Worth

Tue 9/23

7:45 am-10:59 pm

1 stop17h 14m

$204

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 10/29

6:00 am-11:54 pm

1 stop15h 54m

Dallas/Fort Worth

Sat 11/1

7:45 am-8:42 pm

1 stop14h 57m

$204

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 10/1

7:00 am-9:15 pm

1 stop12h 15m

Dallas/Fort Worth

Sat 10/4

2:22 pm-8:39 pm

1 stop8h 17m

$204

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 11/1

9:45 am-3:49 pm

Nonstop4h 04m

Dallas/Fort Worth

Sat 11/8

6:09 pm-8:35 pm

Nonstop4h 26m

$205

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 9/24

7:00 am-9:15 pm

1 stop12h 15m

Dallas/Fort Worth

Wed 10/1

7:45 am-10:59 pm

1 stop17h 14m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 35 results
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The best insider tips for Seattle to Dallas 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 trip
Airlines
Alaska Airlines

Alaska's Premium Class offers extra legroom and free cocktails, ideal for a comfortable journey.


Alaska's Wi-Fi is a flat fee, perfect for getting work done on longer flights.

Read more about Alaska Airlinesby Robert Schrader
Frontier

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


Frontier's Economy Bundle includes a carry-on, seat selection, and no change fees.

Read more about Frontierby Marisa Garcia
Airports
SEA

Plan to arrive at SEA at least two hours before your flight. Use SEA Spot Saver for shorter security waits.

Read more about SEAby Brandon Schultz
DFW

DFW offers a DART Orange Line connecting downtown Dallas to the airport, with a station at Terminal A.

Read more about DFWby Chris Dong
DAL

DAL is just a 20-minute drive from downtown Dallas, offering quick access via rideshares or public transit.

Read more about DALby Paul Rubio
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
Paul Rubio

Paul Rubio

Expert on DAL

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more

Best time to book a flight from Seattle to Dallas

Have a flexible travel schedule? Discover the best time to fly to Dallas 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

How far ahead should I book a flight from Seattle to Dallas?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Dallas. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Dallas, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Dallas?

Currently, August is the cheapest month in which you can book a flight from Seattle to Dallas (average of $216). Flying from Seattle to Dallas 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 12, 2025.

One of the essential ways to save on airfare from Seattle to Dallas 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 43% on airfare.

What is the cheapest day to fly from Seattle to Dallas?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Dallas. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Dallas 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.

Weekly flight availability from Seattle to Dallas

Explore weekly flight availability from Seattle to Dallas. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 12, 2025.

The most flights from SEA to A78 are scheduled on a Monday (67 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (56 on average).

How much does it cost to fly round-trip from Seattle to Dallas?

Reviews of airlines servicing Dallas

Get insights into the airlines that provide service to Dallas. 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. Reviews last updated August 12, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Seattle to Dallas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,978 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,647 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Frontier
5.8
Fair
3,222 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Dallas. 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?

    For a flight from Seattle to Dallas, 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 61 outbound flights to Dallas per day. 8 airlines have flights to Dallas from Seattle/Tacoma Intl on a regular basis.

  • What are the cheapest airlines flying from Seattle to Dallas round-trip?

    Currently priced at $176, Frontier will fly you from Seattle to Dallas and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Southwest for as low as $210. Frontier is 37% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Seattle to Dallas?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Dallas on time: Delta (73%), American Airlines (67%), GOL (65%).

  • What are the cheapest flights from Seattle to Dallas?

    On average you can expect to pay $902 for a flight from Seattle to Dallas. The cheapest flight overall is $109 while the most popular route, (Seattle/Tacoma Intl - Dallas/Fort Worth) is currently priced at $205.

  • Where are the most common layover locations when flying from Seattle to Dallas?

    Of the flights from Seattle to Dallas 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?

    Most Las Vegas visitors opt to spend their time experiencing Fremont Street Experience, Fountains of Bellagio, and Stratosphere Tower. Fremont Street Experience, Fountains of Bellagio and Stratosphere Tower are located about 5.9 mi, 2.3 mi, and 4.3 mi, respectively from Las Vegas Harry Reid Intl if you are interested in checking them out. Those on a layover in Las Vegas in need of a rental car can book one at Las Vegas Harry Reid Intl for about $63.

  • Where are the least popular layover locations for Seattle to Dallas flights?

    Seattle to Dallas flights that have layovers will least frequently stop in Denver.

  • Can I find deals for flights from Seattle to Dallas that include hotel bookings?

    Yes. In addition to deals on Seattle to Dallas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Dallas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Dallas.

  • Can I find deals for business class flights from Seattle to Dallas?

    Yes. Cheapflights offers flight deals from Seattle to Dallas 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?

    Currently, August is the cheapest month in which you can book a flight from Seattle to Dallas (average of $216). Flying from Seattle to Dallas 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

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Alternative routes for Seattle to Dallas

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Top 8 airlines flying from Seattle to Dallas

Discover the top 8 airlines that operate flights from Seattle to Dallas. 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 August 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$73Average$178FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$94Average$218FlexibilityNo cancel feeOn-time65%
DeltaCheapest$131Average$267FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$133Average$287FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$178Average$336FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$179Average$393FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$217Average$354FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$254Average$503FlexibilityNo cancel feeOn-time69%

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