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Cheap flights from Seattle to Dallas from C$ 156

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
13 Oct — 20 Oct1
1 adult
1 adult, Economy

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 Wednesday or Friday and return on a Thursday

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 13 September 2025.

Round-trip from

C$ 273

One-way from

C$ 156

Popular in

December

Cheapest in

October

Average price

C$ 357
Southwest
  • Southwest
  • 29/10-5/11
  • 4 total stops
  • 17h 30m total
  • Seattle to Dallas
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Delta
  • Delta
  • 25/10
  • Nonstop
  • 4h 00m total
  • Seattle to Dallas
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 13 September 2025.

Wed 29/1012:50 p.m.SEA - DAL
2 stops7h 40mSouthwest
Wed 5/118:40 a.m.DAL - SEA
2 stops9h 50mSouthwest
Deal found 11/9C$ 273
Thu 23/105:00 a.m.SEA - DAL
1 stop5h 15mSouthwest
Tue 28/1012:40 p.m.DAL - SEA
1 stop9h 10mSouthwest
Deal found 12/9C$ 277
Wed 3/128:10 a.m.SEA - DAL
2 stops8h 10mSouthwest
Mon 8/126:35 p.m.DAL - SEA
1 stop6h 20mSouthwest
Deal found 12/9C$ 278
Sat 1/115:45 a.m.SEA - DAL
1 stop8h 45mSouthwest
Mon 3/113:50 p.m.DAL - SEA
1 stop9h 05mSouthwest
Deal found 12/9C$ 285
Mon 3/116:15 a.m.SEA - DAL
1 stop10h 40mSouthwest
Wed 5/119:10 a.m.DAL - SEA
1 stop11h 10mSouthwest
Deal found 12/9C$ 287
Sat 13/126:00 a.m.SEA - DAL
1 stop10h 45mSouthwest
Mon 15/125:35 p.m.DAL - SEA
1 stop6h 55mSouthwest
Deal found 10/9C$ 293
Sat 25/106:35 a.m.SEA - DAL
1 stop8h 20mSouthwest
Mon 27/107:30 p.m.DAL - SEA
1 stop7h 20mSouthwest
Deal found 11/9C$ 299
Wed 15/107:10 a.m.SEA - DAL
1 stop7h 05mSouthwest
Sat 25/1012:50 p.m.DAL - SEA
1 stop5h 50mSouthwest
Deal found 11/9C$ 300
Tue 28/1012:58 a.m.SEA - DFW
Nonstop3h 57mAlaska Airlines
Wed 29/1010:00 a.m.DFW - SEA
Nonstop4h 30mAlaska Airlines
Deal found 11/9C$ 303
Wed 15/107:10 a.m.SEA - DAL
1 stop6h 05mSouthwest
Sat 18/102:40 p.m.DAL - SEA
2 stops9h 05mSouthwest
Deal found 12/9C$ 307
Tue 14/1012:59 a.m.SEA - DFW
Nonstop3h 55mHawaiian Airlines
Tue 21/106:29 p.m.DFW - SEA
Nonstop4h 17mHawaiian Airlines
Deal found 11/9C$ 311
Mon 24/115:55 p.m.SEA - DFW
Nonstop3h 59mDelta
Wed 3/127:10 a.m.DFW - SEA
Nonstop4h 40mDelta
Deal found 12/9C$ 320

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 13 September 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 - DAL

SEADAL

Seattle/Tacoma Intl

Sat 1/11

5:45 a.m.-4:30 p.m.

1 stop8h 45m

Dallas Love Field

Mon 3/11

3:50 p.m.-10:55 p.m.

1 stop9h 05m

C$ 285

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 26/2

6:00 p.m.-11:48 p.m.

Nonstop3h 48m

Dallas/Fort Worth

Sat 28/2

5:50 p.m.-8:22 p.m.

Nonstop4h 32m

C$ 292

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Sat 13/12

6:00 a.m.-6:45 p.m.

1 stop10h 45m

Dallas Love Field

Mon 15/12

6:10 p.m.-10:55 p.m.

1 stop6h 45m

C$ 293

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Sat 25/10

6:35 a.m.-4:55 p.m.

1 stop8h 20m

Dallas Love Field

Mon 27/10

7:30 p.m.-12:50 a.m.

1 stop7h 20m

C$ 299

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 25/10

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

Nonstop3h 55m

Dallas/Fort Worth

Wed 29/10

4:20 p.m.-6:37 p.m.

Nonstop4h 17m

C$ 311

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Sat 11/10

5:45 a.m.-4:30 p.m.

1 stop8h 45m

Dallas Love Field

Sat 18/10

4:45 p.m.-10:05 p.m.

1 stop7h 20m

C$ 313

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Mon 27/10

12:50 p.m.-10:35 p.m.

1 stop7h 45m

Dallas Love Field

Sat 15/11

6:10 a.m.-11:20 a.m.

1 stop7h 10m

C$ 320

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 29/10

1:40 p.m.-7:46 p.m.

Nonstop4h 06m

Dallas/Fort Worth

Thu 30/10

2:50 p.m.-5:21 p.m.

Nonstop4h 31m

C$ 324

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 1/10

5:56 p.m.-11:59 p.m.

Nonstop4h 03m

Dallas/Fort Worth

Fri 3/10

6:15 a.m.-8:32 a.m.

Nonstop4h 17m

C$ 324

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 15/10

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

Nonstop3h 55m

Dallas/Fort Worth

Mon 20/10

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

Nonstop4h 25m

C$ 324

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 41 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 29 August 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. 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, July is the cheapest month in which you can book a flight from Seattle to Dallas (average of C$ 472). Flying from Seattle to Dallas in December is currently the most expensive (average of C$ 529). 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 13 September 2025.

It’s typically best to fly out from Seattle to Dallas in the afternoon. Doing so could potentially save you 44% 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 16 December 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. Sunday mornings 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 13 September 2025.

The most flights from SEA to A78 are scheduled on a Friday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (42 on average).

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 13 September 2025.
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
10,000 reviews
Check prices

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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
Check prices

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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
Check prices

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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.
Spirit Airlines
6.3
Okay
8,023 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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
3,176 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Dallas. On average, Seattle/Tacoma Intl has 52 outbound flights to Dallas per day from 6 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 55m. The distance from Seattle to Dallas is about 2667 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Delta, at C$ 104, was found to be the cheapest airline from Seattle to Dallas.Alternate airlines to your destination round-trip include Frontier and American Airlines. Users have found that Delta is 73% cheaper than the other options available to this destination.

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

    C$ 156 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Alaska Airlines and Hawaiian Airlines, with prices starting from C$ 156 and C$ 156, respectively.

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

    Consider KLM (79%), Delta (77%) or Finnair (72%) 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$ 151. On average you can expect to pay C$ 426. The most popular route, (Seattle/Tacoma Intl - Dallas/Fort Worth), can usually be booked for C$ 347.

  • 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, July is the cheapest month in which you can book a flight from Seattle to Dallas (average of C$ 472). Flying from Seattle to Dallas in December is currently the most expensive (average of C$ 529). 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 Hobby flights
Seattle to George Bush Intcntl flights
Seattle to Dallas/Fort Worth flights
Seattle to Austin flights
Bellingham to Dallas/Fort Worth flights

Top 6 airlines flying from Seattle to Dallas

Discover the top 6 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 13 September 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 104AverageC$ 328FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FrontierCheapestC$ 126AverageC$ 243FlexibilityNo cancel feeOn-time62%
Search Frontier flights
American AirlinesCheapestC$ 164AverageC$ 310FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Hawaiian AirlinesCheapestC$ 169AverageC$ 304FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Alaska AirlinesCheapestC$ 181AverageC$ 374FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Spirit AirlinesCheapestC$ 210AverageC$ 321FlexibilityNo cancel feeOn-time65%
Search Spirit 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.

Can Cheapflights notify me if prices for flights from Seattle to Dallas become cheaper?

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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