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Cheap flights from Seattle to Dallas from C$ 152

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 23/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
6 Mar — 13 Mar5
5 travellers
5 travellers, Economy, 0 bags
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dallas are usually found in August or March, booked 89 days in advance, depart on a Friday or Wednesday and return on a Monday

Cheap flight deals from Seattle to Dallas

Enter your travel dates to find the best prices.

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 4 February 2026.

Sat 14/36:24 p.m.
SEA
-
DFW
1 stop9h 43m
Multiple Airlines
Wed 18/310:41 p.m.
DFW
-
SEA
1 stop23h 39m
Multiple Airlines
Deal found 2/2C$ 260
Sun 15/39:35 p.m.
SEA
-
DFW
1 stop11h 41m
Frontier
Wed 18/310:41 p.m.
DFW
-
SEA
1 stop23h 39m
Frontier
Deal found 2/2C$ 266
Mon 16/39:36 p.m.
SEA
-
DFW
1 stop14h 32m
Multiple Airlines
Fri 20/37:15 a.m.
DFW
-
SEA
1 stop12h 24m
Multiple Airlines
Deal found 2/2C$ 268
Sat 7/33:10 p.m.
SEA
-
DAL
Nonstop3h 45m
Southwest
Sun 8/37:30 a.m.
DAL
-
SEA
Nonstop4h 20m
Southwest
Deal found 2/2C$ 273
Mon 16/39:36 p.m.
SEA
-
DFW
1 stop14h 32m
Multiple Airlines
Thu 19/35:45 a.m.
DFW
-
SEA
1 stop13h 24m
Multiple Airlines
Deal found 2/2C$ 276
Mon 23/212:30 p.m.
SEA
-
DFW
2 stops15h 17m
Frontier
Wed 25/29:55 a.m.
DFW
-
SEA
1 stop28h 06m
Frontier
Deal found 3/2C$ 283
Mon 23/212:30 p.m.
SEA
-
DFW
1 stop9h 42m
Multiple Airlines
Wed 25/26:00 a.m.
DFW
-
SEA
Nonstop4h 34m
Multiple Airlines
Deal found 3/2C$ 284
Sat 14/36:24 p.m.
SEA
-
DFW
1 stop9h 43m
Multiple Airlines
Fri 20/37:15 a.m.
DFW
-
SEA
1 stop12h 24m
Multiple Airlines
Deal found 2/2C$ 291
Mon 16/39:36 p.m.
SEA
-
DFW
1 stop14h 32m
Frontier
Wed 18/310:00 a.m.
DFW
-
SEA
1 stop9h 09m
Frontier
Deal found 2/2C$ 295
Mon 23/210:06 a.m.
SEA
-
DFW
2 stops11h 23m
Frontier
Thu 26/210:31 p.m.
DFW
-
SEA
1 stop12h 20m
Frontier
Deal found 3/2C$ 299
Sat 14/36:24 p.m.
SEA
-
DFW
1 stop9h 43m
Multiple Airlines
Thu 19/35:45 a.m.
DFW
-
SEA
1 stop13h 24m
Multiple Airlines
Deal found 2/2C$ 300
Sat 11/41:10 p.m.
SEA
-
DAL
Nonstop3h 50m
Southwest
Tue 14/46:45 p.m.
DAL
-
SEA
1 stop6h 50m
Southwest
Deal found 2/2C$ 300

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 4 February 2026.

Round-trip from

C$ 260

One-way from

C$ 152

Popular in

December

Cheapest in

August

Average price

C$ 419
Frontier
  • Frontier
  • 14/3-18/3
  • 2 total stops
  • 33h 22m total
  • Seattle to Dallas
Search Deals
Frontier
  • Frontier
  • 23/3
  • 1 total stop
  • 30h 11m total
  • Seattle to Dallas
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 629,999 searches. Data last updated 4 February 2026.
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

Tue 17/3

12:23 a.m.-6:20 a.m.

Nonstop3h 57m

Dallas/Fort Worth

Wed 18/3

9:00 a.m.-11:32 a.m.

Nonstop4h 32m

C$ 314

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 14/3

10:51 p.m.-4:40 a.m.

Nonstop3h 49m

Dallas/Fort Worth

Wed 18/3

7:10 p.m.-9:41 p.m.

Nonstop4h 31m

C$ 322

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sun 15/3

10:51 p.m.-4:40 a.m.

Nonstop3h 49m

Dallas/Fort Worth

Wed 18/3

9:00 a.m.-11:32 a.m.

Nonstop4h 32m

C$ 322

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 17/3

6:01 p.m.-11:59 p.m.

Nonstop3h 58m

Dallas/Fort Worth

Thu 19/3

9:00 a.m.-11:32 a.m.

Nonstop4h 32m

C$ 322

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Mon 16/3

10:51 p.m.-4:40 a.m.

Nonstop3h 49m

Dallas/Fort Worth

Thu 19/3

6:00 a.m.-8:29 a.m.

Nonstop4h 29m

C$ 322

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sun 15/3

10:51 p.m.-4:40 a.m.

Nonstop3h 49m

Dallas/Fort Worth

Tue 17/3

6:59 p.m.-9:32 p.m.

Nonstop4h 33m

C$ 322

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sun 15/3

10:51 p.m.-4:40 a.m.

Nonstop3h 49m

Dallas/Fort Worth

Thu 19/3

6:00 a.m.-8:29 a.m.

Nonstop4h 29m

C$ 322

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Mon 16/3

6:01 p.m.-11:59 p.m.

Nonstop3h 58m

Dallas/Fort Worth

Fri 20/3

6:00 a.m.-8:29 a.m.

Nonstop4h 29m

C$ 322

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 14/3

10:51 p.m.-4:40 a.m.

Nonstop3h 49m

Dallas/Fort Worth

Thu 19/3

9:00 a.m.-11:32 a.m.

Nonstop4h 32m

C$ 322

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 14/3

10:51 p.m.-4:40 a.m.

Nonstop3h 49m

Dallas/Fort Worth

Tue 17/3

6:00 a.m.-8:34 a.m.

Nonstop4h 34m

C$ 322

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/2

Showing 1-10 of 44 results
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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 30 January 2026.

Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Dallas. 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?

Currently, March is the cheapest month in which you can book a flight from Seattle to Dallas (average of C$ 138). Flying from Seattle to Dallas in May is currently the most expensive (average of C$ 223). 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 4 February 2026.

It’s typically best to fly out from Seattle to Dallas at noon. Doing so could potentially save you 17% on the flight price compared to flying in the morning, which is usually more expensive.

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 5 October 2025.

Travelers seeking maximum savings on their Seattle to Dallas flight should consider departing on Wednesday 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 4 February 2026.

The most flights from SEA to A78 are scheduled on a Tuesday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 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?

Wednesday 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 past year, American Airlines has had the lowest number of delays on this route, with just 13% of flights being delayed.

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 4 February 2026.
Read reviews from past customers who have flown Alaska Airlines,Hawaiian Airlines, andAmerican Airlines from Seattle to Dallas. 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
11,839 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

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
8.0
Very good
11,839 reviews
Alaska Airlines
8.0
Very good
11,839 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

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
2,831 reviews
Alaska Airlines
8.0
Very good
11,839 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

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
7.2
Good
11,224 reviews
Alaska Airlines
8.0
Very good
11,839 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

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.
Spirit Airlines
6.3
Okay
8,415 reviews
Alaska Airlines
8.0
Very good
11,839 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

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
3,052 reviews
Alaska Airlines
8.0
Very good
11,839 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

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?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Dallas. On average, Seattle/Tacoma Intl has 33 outbound flights to Dallas per day from 5 airlines. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.

  • How long is the flight from Seattle to Dallas?

    Departing from Seattle to Dallas will take you 3h 45m. The distance from Seattle to Dallas is about 2683 km. Most flights are nonstop.

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

    Frontier, at C$ 77, was found to be the cheapest airline from Seattle to Dallas.Alternate airlines to your destination round-trip include Spirit Airlines and American Airlines. Users have found that Frontier is 80% cheaper than the other options available to this destination.

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

    Consider Finnair (85%), Qantas Airways (82%) or British Airways (82%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Dallas.

  • What are the cheapest flights from Seattle to Dallas?

    The cheapest flight price from Seattle to Dallas is C$ 237. On average you can expect to pay C$ 399. The most popular route, (Seattle/Tacoma Intl - Dallas Love Field), can usually be booked for C$ 549.

  • 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, March is the cheapest month in which you can book a flight from Seattle to Dallas (average of C$ 138). Flying from Seattle to Dallas in May is currently the most expensive (average of C$ 223). 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

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Dallas/Fort Worth flights
Seattle to Austin flights
Bellingham to Dallas/Fort Worth flights
Seattle to Hobby flights
Seattle to George Bush Intcntl flights

Top 5 airlines flying from Seattle to Dallas

Discover the top 5 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 629,999 searches. Data last updated 4 February 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 77AverageC$ 247FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapestC$ 83AverageC$ 303FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapestC$ 149AverageC$ 296FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Alaska AirlinesCheapestC$ 161AverageC$ 354FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Hawaiian AirlinesCheapestC$ 167AverageC$ 320FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Dallas?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Dallas. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Dallas?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Dallas from Seattle.

Can Cheapflights find flights from Seattle to Dallas with no change fees?

Yes! Cheapflights helps users easily find flights from Seattle to Dallas with no change fees.

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Of course! You can now track prices for flights from Seattle to Dallas and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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