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$115+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Find cheap flights from Seattle to Dallas with Cheapflights

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dallas are usually found in August or October, booked 89 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap 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 March 22, 2026.

This Travelocity deal was found by Cheapflights users on 3/18. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/164:20 pm
SEA
-
DFW
1 stop5h 52m
Multiple Airlines
Thu 4/238:47 pm
DFW
-
SEA
Nonstop4h 28m
Multiple Airlines
Deal found 3/18$229
This Frontier deal was found by Cheapflights users on 3/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2811:21 am
SEA
-
DFW
1 stop11h 09m
Frontier
Mon 6/15:18 am
DFW
-
SEA
1 stop6h 48m
Frontier
Deal found 3/17$230
This Frontier deal was found by Cheapflights users on 3/20. 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.
Sat 5/911:06 am
SEA
-
DFW
1 stop11h 24m
Frontier
Thu 5/145:18 am
DFW
-
SEA
1 stop6h 31m
Frontier
Deal found 3/20$231
This Frontier deal was found by Cheapflights users on 3/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/75:29 pm
SEA
-
DFW
1 stop10h 21m
Frontier
Mon 4/205:20 am
DFW
-
SEA
1 stop6h 07m
Frontier
Deal found 3/17$232
This Trip.com deal was found by Cheapflights users on 3/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:58 pm
SEA
-
DFW
Nonstop4h 01m
Multiple Airlines
Fri 4/246:20 am
DFW
-
SEA
Nonstop4h 32m
Multiple Airlines
Deal found 3/19$233
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:51 pm
SEA
-
DFW
Nonstop4h 08m
Multiple Airlines
Sat 5/95:18 am
DFW
-
SEA
1 stop6h 31m
Multiple Airlines
Deal found 3/17$234
This Expedia deal was found by Cheapflights users on 3/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/312:42 pm
SEA
-
DFW
1 stop9h 30m
Frontier
Mon 4/62:24 pm
DFW
-
SEA
1 stop7h 50m
Frontier
Deal found 3/20$235
This CheapOair deal was found by Cheapflights users on 3/22. 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 5/217:50 pm
SEA
-
DFW
1 stop27h 14m
Frontier
Sun 5/245:18 am
DFW
-
SEA
1 stop6h 48m
Frontier
Deal found 3/22$236
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:51 pm
SEA
-
DFW
Nonstop4h 01m
Delta
Sat 4/254:27 pm
DFW
-
SEA
Nonstop4h 23m
Delta
Deal found 3/17$237
This Southwest deal was found by Cheapflights users on 3/18. 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.
Tue 4/212:05 pm
SEA
-
DAL
Nonstop3h 55m
Southwest
Tue 5/59:00 am
DAL
-
SEA
Nonstop4h 20m
Southwest
Deal found 3/18$237
This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Sun 5/246:00 am
SEA
-
DFW
Nonstop4h 03m
Multiple Airlines
Thu 6/47:11 am
DFW
-
SEA
1 stop13h 24m
Multiple Airlines
Deal found 3/19$238
This Kiwi.com deal was found by Cheapflights users on 3/18. 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.
Thu 5/1410:58 pm
SEA
-
DFW
Nonstop4h 02m
Multiple Airlines
Mon 5/1810:21 pm
DFW
-
SEA
1 stop13h 28m
Multiple Airlines
Deal found 3/18$239

Find 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 March 22, 2026.

Round-trip from

$229
(Travelocity)

One-way from

$115
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$292
From Seattle/Tacoma Intl to Dallas
Search Deals
One-way flight from Seattle/Tacoma Intl to Dallas
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 22, 2026.
Use the filters below to find and compare flights from Seattle to Dallas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 4/18

5:51 pm-11:52 pm

Nonstop4h 01m

Dallas/Fort Worth

Sun 4/19

6:30 am-8:54 am

Nonstop4h 24m

$237
Quickest round-trip

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Wed 4/29

2:05 pm-8:00 pm

Nonstop3h 55m

Dallas Love Field

Sun 5/3

7:25 am-9:40 am

Nonstop4h 15m

$237

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 4/30

11:59 pm-9:40 am

1 stop7h 41m

Dallas/Fort Worth

Sun 5/3

6:30 am-8:54 am

Nonstop4h 24m

$247

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Sat 5/2

1:00 pm-8:35 pm

1 stop5h 35m

Dallas Love Field

Sun 5/3

7:25 am-9:40 am

Nonstop4h 15m

$247

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 4/18

1:30 pm-9:37 pm

1 stop6h 07m

Dallas/Fort Worth

Sat 4/25

4:27 pm-6:50 pm

Nonstop4h 23m

$247

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 4/23

1:45 pm-11:58 pm

1 stop8h 13m

Dallas/Fort Worth

Sun 4/26

6:30 am-8:54 am

Nonstop4h 24m

$247

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Fri 5/1

5:15 am-4:55 pm

2 stops9h 40m

Dallas Love Field

Sun 5/3

7:25 am-9:40 am

Nonstop4h 15m

$252

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Mon 4/27

5:15 am-4:55 pm

2 stops9h 40m

Dallas Love Field

Fri 5/1

8:20 pm-12:40 am

1 stop6h 20m

$262

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Mon 5/25

6:00 am-12:03 pm

Nonstop4h 03m

Dallas/Fort Worth

Tue 6/2

6:20 am-8:45 am

Nonstop4h 25m

$277

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 4/16

12:23 am-6:20 am

Nonstop3h 57m

Dallas/Fort Worth

Tue 4/21

6:00 am-8:29 am

Nonstop4h 29m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 44 resultsSorted by cheapest first
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5

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 March 13, 2026.

To ensure you get the cheapest price possible for a flight from Seattle to Dallas, you should look to book at least 89 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, October is the cheapest month in which you can book a flight from Seattle to Dallas (average of $122). Flying from Seattle to Dallas in May is currently the most expensive (average of $174). 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 March 22, 2026.

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 31% 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 March 14, 2026.

Travelers seeking maximum savings on their Seattle to Dallas flight should consider departing on Saturday at noon when fares are most often at their lowest. Saturday evenings 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 March 22, 2026.

The most flights from SEA to A78 are scheduled on a Sunday (41 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).

How often are flights from Seattle to Dallas delayed?

About 15% of weekly flights between Seattle and Dallas have experienced delays in the past year, with the average delay time being 147 minutes.

What is the most punctual flight time for Seattle to Dallas flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Seattle to Dallas flights?

Over the last year, American Airlines have had the lowest number of delays on this route, with just 14% of flights being delayed.

The best insider tips for Seattle to Dallas flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Dallas trip
Our travel experts
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

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 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 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 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

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

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 March 22, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andHawaiian 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
7.9
Good
12,094 reviews

Overall

7.9

Entertainment

7.0

Comfort

7.8

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,094 reviews
Alaska Airlines
7.9
Good
12,094 reviews

Overall

7.9

Entertainment

7.0

Comfort

7.8

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,315 reviews
Alaska Airlines
7.9
Good
12,094 reviews

Overall

7.9

Entertainment

7.0

Comfort

7.8

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Hawaiian Airlines
7.8
Good
2,841 reviews
Alaska Airlines
7.9
Good
12,094 reviews

Overall

7.9

Entertainment

7.0

Comfort

7.8

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.1
Good
11,485 reviews
Alaska Airlines
7.9
Good
12,094 reviews

Overall

7.9

Entertainment

7.0

Comfort

7.8

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Frontier
5.7
Fair
3,020 reviews
Alaska Airlines
7.9
Good
12,094 reviews

Overall

7.9

Entertainment

7.0

Comfort

7.8

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 30 outbound flights to Dallas per day. 8 airlines have flights to Dallas from Seattle/Tacoma Intl on a regular basis.

  • How long is the flight from Seattle to Dallas?

    Delta, Southwest, and Alaska Airlines can get you from Seattle to Dallas in just under 3h 55m. Your travel time will be generally consistent. The distance from Seattle to Dallas is about 1667 mi. All flights are typically nonstop.

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

    Currently priced at $88, Frontier will fly you from Seattle to Dallas and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Hawaiian Airlines - these airlines can fly you to your destination from $109 and $117, respectively. Frontier is 71% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Seattle to Dallas one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $67. Users have also found prices from $78 and $89 on Spirit Airlines and American Airlines, respectively.

  • 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: Air Tahiti Nui (93%), Condor (91%), STARLUX Airlines (89%).

  • What are the cheapest flights from Seattle to Dallas?

    On average you can expect to pay $853 for a flight from Seattle to Dallas. The cheapest flight overall is $108 while the most popular route, (Seattle/Tacoma Intl - Dallas/Fort Worth) is currently priced at $227.

  • 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, October is the cheapest month in which you can book a flight from Seattle to Dallas (average of $122). Flying from Seattle to Dallas in May is currently the most expensive (average of $174). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$88Average$218FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$109Average$219FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$117Average$293FlexibilityNo cancel feeOn-time85%
DeltaCheapest$133Average$272FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$163Average$329FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$177Average$318FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$177Average$468FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$249Average$403FlexibilityNo cancel feeOn-time69%

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