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Cheap flights from Seattle to Dallas from C$ 165

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
2 Aug — 9 Aug1
1 adult

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dallas are usually found in October or September, booked 58 days in advance, depart on a Wednesday or Friday and return on a Wednesday

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 28 July 2025.

Round-trip from

C$ 239

One-way from

C$ 165

Popular in

December

Cheapest in

October

Average price

C$ 407
Alaska Airlines
  • Alaska Airlines
  • 30/10-31/10
  • Nonstop
  • 8h 28m total
  • Seattle to Dallas
Search Deals
Hawaiian Airlines
  • Hawaiian Airlines
  • 23/8
  • Nonstop
  • 4h 02m total
  • Seattle to Dallas
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 15 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 July 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 28 July 2025.

Thu 30/1012:58 a.m.SEA - DFW
Nonstop3h 57mAlaska Airlines
Fri 31/1010:00 a.m.DFW - SEA
Nonstop4h 31mAlaska Airlines
Deal found 28/7C$ 239
Sat 30/810:30 a.m.SEA - DAL
Nonstop4h 05mSouthwest
Sat 6/95:00 p.m.DAL - SEA
1 stop8h 10mSouthwest
Deal found 28/7C$ 268
Fri 12/912:33 a.m.SEA - DFW
Nonstop4h 02mHawaiian Airlines
Wed 17/93:12 p.m.DFW - SEA
Nonstop4h 19mHawaiian Airlines
Deal found 28/7C$ 281
Wed 20/85:50 p.m.SEA - DFW
Nonstop3h 54mDelta
Tue 26/87:13 a.m.DFW - SEA
Nonstop4h 22mDelta
Deal found 27/7C$ 314
Wed 29/107:10 a.m.SEA - DFW
1 stop6h 48mUnited Airlines
Sat 1/111:46 p.m.DFW - SEA
2 stops9h 05mUnited Airlines
Deal found 27/7C$ 335
Fri 24/109:24 a.m.SEA - DFW
Nonstop4h 08mMultiple Airlines
Fri 24/108:39 p.m.DFW - SEA
Nonstop4h 29mMultiple Airlines
Deal found 28/7C$ 346
Fri 24/109:24 a.m.SEA - DFW
Nonstop4h 08mFrontier
Fri 24/1010:30 p.m.DFW - SEA
1 stop28h 01mFrontier
Deal found 28/7C$ 350

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 28 July 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

Thu 30/10

12:58 a.m.-6:55 a.m.

Nonstop3h 57m

Dallas/Fort Worth

Fri 31/10

10:00 a.m.-12:31 p.m.

Nonstop4h 31m

C$ 239

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Sat 30/8

10:30 a.m.-4:35 p.m.

Nonstop4h 05m

Dallas Love Field

Sat 6/9

5:00 p.m.-11:10 p.m.

1 stop8h 10m

C$ 268

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 12/9

12:33 a.m.-6:35 a.m.

Nonstop4h 02m

Dallas/Fort Worth

Wed 17/9

3:12 p.m.-5:31 p.m.

Nonstop4h 19m

C$ 281

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 20/8

5:50 p.m.-11:44 p.m.

Nonstop3h 54m

Dallas/Fort Worth

Tue 26/8

7:13 a.m.-9:35 a.m.

Nonstop4h 22m

C$ 314

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 29/10

7:10 a.m.-3:58 p.m.

1 stop6h 48m

Dallas/Fort Worth

Sat 1/11

1:46 p.m.-8:51 p.m.

2 stops9h 05m

C$ 335

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 24/10

9:24 a.m.-3:32 p.m.

Nonstop4h 08m

Dallas/Fort Worth

Fri 24/10

8:39 p.m.-11:08 p.m.

Nonstop4h 29m

C$ 346

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 24/10

9:24 a.m.-3:32 p.m.

Nonstop4h 08m

Dallas/Fort Worth

Fri 24/10

10:30 p.m.-12:31 a.m.

1 stop28h 01m

C$ 350

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 23/8

6:00 a.m.-12:02 p.m.

Nonstop4h 02m

C$ 165

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Wed 17/9

12:30 p.m.-6:35 p.m.

Nonstop4h 05m

C$ 165

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 20/8

11:11 a.m.-6:53 p.m.

1 stop5h 42m

C$ 178

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

Showing 1-10 of 14 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 25 July 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 28 July 2025.

It’s typically best to fly out from Seattle to Dallas in the afternoon. Doing so could potentially save you 47% 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 28 July 2025.

The most flights from SEA to A78 are scheduled on a Monday (68 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (56 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 28 July 2025.
Read reviews from past customers who have flown Alaska Airlines,Southwest, andDelta 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

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

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
Check prices

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

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.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

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
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

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
2,604 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

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.
United Airlines
7.4
Good
8,892 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

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?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Dallas. On average, Seattle/Tacoma Intl has 61 outbound flights to Dallas per day from 6 airlines. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.

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

    Alaska Airlines, at C$ 239, was found to be the cheapest airline from Seattle to Dallas.Alternate airlines to your destination round-trip include Southwest and Hawaiian Airlines. Users have found that Alaska Airlines is 37% cheaper than the other options available to this destination.

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

    C$ 165 is the cheapest one-way deal found within the past few days, from Hawaiian Airlines. You may also be able to find cheap deals on Southwest and United Airlines, with prices starting from C$ 165 and C$ 178, respectively.

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

    Consider Delta (76%), KLM (71%) or American Airlines (71%) 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$ 80. On average you can expect to pay C$ 245. The most popular route, (Seattle/Tacoma Intl - Dallas/Fort Worth), can usually be booked for C$ 272.

  • 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 Dallas/Fort Worth flights
Seattle to Hobby flights
Seattle to George Bush Intcntl flights
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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 28 July 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 123AverageC$ 239FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 149AverageC$ 325FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 162AverageC$ 306FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Hawaiian AirlinesCheapestC$ 167AverageC$ 238FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Alaska AirlinesCheapestC$ 179AverageC$ 367FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Spirit AirlinesCheapestC$ 208AverageC$ 319FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights

Fly with Cheapflights

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

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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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