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Cheap flights from Seattle to Dallas from C$ 145

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

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

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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 28 October 2025.

Thu 4/1212:45 a.m.SEA - DFW
Nonstop3h 55mAlaska Airlines
Mon 8/126:17 p.m.DFW - SEA
Nonstop4h 33mAlaska Airlines
Deal found 28/10C$ 248
Wed 3/127:05 a.m.SEA - DAL
1 stop6h 20mSouthwest
Wed 3/125:35 p.m.DAL - SEA
1 stop6h 55mSouthwest
Deal found 28/10C$ 276
Wed 3/121:42 p.m.SEA - DFW
Nonstop3h 58mAlaska Airlines
Wed 3/128:40 p.m.DFW - SEA
Nonstop4h 31mAlaska Airlines
Deal found 28/10C$ 281
Wed 17/125:55 p.m.SEA - DFW
Nonstop3h 55mDelta
Tue 6/18:10 a.m.DFW - SEA
Nonstop4h 35mDelta
Deal found 27/10C$ 285
Wed 3/1212:45 a.m.SEA - DFW
Nonstop3h 55mAlaska Airlines
Sun 7/128:40 p.m.DFW - SEA
Nonstop4h 31mAlaska Airlines
Deal found 27/10C$ 290
Mon 17/1112:58 a.m.SEA - DFW
Nonstop3h 57mAlaska Airlines
Tue 25/117:59 p.m.DFW - SEA
Nonstop4h 31mAlaska Airlines
Deal found 28/10C$ 304
Wed 19/117:44 a.m.SEA - DFW
Nonstop4h 06mAlaska Airlines
Wed 19/114:49 p.m.DFW - SEA
1 stop8h 43mAlaska Airlines
Deal found 28/10C$ 309
Mon 10/1112:58 a.m.SEA - DFW
Nonstop3h 57mMultiple Airlines
Tue 18/117:45 a.m.DFW - SEA
1 stop6h 22mMultiple Airlines
Deal found 28/10C$ 310
Sun 7/1212:45 a.m.SEA - DFW
Nonstop3h 55mAlaska Airlines
Tue 9/124:40 p.m.DFW - SEA
1 stop6h 09mAlaska Airlines
Deal found 28/10C$ 318
Thu 4/128:25 a.m.SEA - DFW
1 stop6h 52mAlaska Airlines
Thu 4/126:17 p.m.DFW - SEA
Nonstop4h 33mAlaska Airlines
Deal found 28/10C$ 323
Thu 11/1212:45 p.m.SEA - DFW
1 stop14h 15mAlaska Airlines
Sun 14/127:40 a.m.DFW - SEA
Nonstop4h 38mAlaska Airlines
Deal found 28/10C$ 331
Wed 17/121:10 p.m.SEA - DAL
1 stop6h 50mSouthwest
Tue 6/15:10 p.m.DAL - SEA
1 stop7h 20mSouthwest
Deal found 28/10C$ 331

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 October 2025.

Round-trip from

C$ 248

One-way from

C$ 145

Popular in

December

Cheapest in

January

Average price

C$ 382
Alaska Airlines
  • Alaska Airlines
  • 4/12-8/12
  • Nonstop
  • 8h 28m total
  • Seattle to Dallas
Search Deals
Southwest
  • Southwest
  • 4/12
  • 2 total stops
  • 10h 40m total
  • Seattle to Dallas
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 13 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 October 2025
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 28 October 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

Wed 3/12

12:45 a.m.-6:40 a.m.

Nonstop3h 55m

Dallas/Fort Worth

Thu 4/12

8:40 p.m.-11:11 p.m.

Nonstop4h 31m

C$ 248

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sun 25/1

5:55 p.m.-11:45 p.m.

Nonstop3h 50m

Dallas/Fort Worth

Sun 15/2

4:30 p.m.-7:00 p.m.

Nonstop4h 30m

C$ 248

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 9/1

5:55 p.m.-11:45 p.m.

Nonstop3h 50m

Dallas/Fort Worth

Mon 12/1

8:10 a.m.-10:45 a.m.

Nonstop4h 35m

C$ 248

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Fri 27/2

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

Nonstop3h 48m

Dallas/Fort Worth

Tue 3/3

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

Nonstop4h 32m

C$ 248

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Fri 23/1

6:05 a.m.-1:50 p.m.

1 stop5h 45m

Dallas Love Field

Sat 24/1

4:10 p.m.-9:10 p.m.

1 stop7h 00m

C$ 276

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Fri 5/12

6:35 a.m.-7:15 p.m.

2 stops10h 40m

Dallas Love Field

Mon 8/12

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

1 stop9h 05m

C$ 283

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 9/12

8:25 a.m.-5:17 p.m.

1 stop6h 52m

Dallas/Fort Worth

Mon 15/12

7:40 a.m.-10:18 a.m.

Nonstop4h 38m

C$ 318

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 10/3

9:50 a.m.-3:42 p.m.

Nonstop3h 52m

Dallas/Fort Worth

Wed 11/3

7:15 a.m.-11:38 a.m.

1 stop6h 23m

C$ 318

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 17/12

7:15 a.m.-11:34 p.m.

2 stops14h 19m

Dallas/Fort Worth

Tue 6/1

8:10 a.m.-10:45 a.m.

Nonstop4h 35m

C$ 323

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 8/1

8:23 a.m.-2:27 p.m.

Nonstop4h 04m

Dallas/Fort Worth

Mon 12/1

4:54 p.m.-10:33 p.m.

1 stop7h 39m

C$ 331

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 48 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 24 October 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, January is the cheapest month in which you can book a flight from Seattle to Dallas (average of C$ 91). Flying from Seattle to Dallas in May is currently the most expensive (average of C$ 228). 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 October 2025.

It’s typically best to fly out from Seattle to Dallas in the afternoon. Doing so could potentially save you 52% 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. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 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
11,206 reviews
Check prices

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,206 reviews
Alaska Airlines
8.0
Very good
11,206 reviews
Check prices

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Hawaiian Airlines
7.8
Good
2,794 reviews
Alaska Airlines
8.0
Very good
11,206 reviews
Check prices

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,032 reviews
Alaska Airlines
8.0
Very good
11,206 reviews
Check prices

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Spirit Airlines
6.3
Okay
8,114 reviews
Alaska Airlines
8.0
Very good
11,206 reviews
Check prices

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Frontier
5.8
Fair
3,124 reviews
Alaska Airlines
8.0
Very good
11,206 reviews
Check prices

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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 28 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 50m. 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$ 105, 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$ 152 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Alaska Airlines and Southwest, with prices starting from C$ 168 and C$ 201, respectively.

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

    Consider Frontier (100%), Iberia (82%) or American Airlines (81%) 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$ 47. On average you can expect to pay C$ 230. The most popular route, (Seattle/Tacoma Intl - Dallas/Fort Worth), can usually be booked for C$ 256.

  • 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, January is the cheapest month in which you can book a flight from Seattle to Dallas (average of C$ 91). Flying from Seattle to Dallas in May is currently the most expensive (average of C$ 228). 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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 105AverageC$ 345FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FrontierCheapestC$ 134AverageC$ 252FlexibilityNo cancel feeOn-time62%
Search Frontier flights
American AirlinesCheapestC$ 169AverageC$ 338FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Hawaiian AirlinesCheapestC$ 171AverageC$ 307FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Alaska AirlinesCheapestC$ 176AverageC$ 373FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Spirit AirlinesCheapestC$ 212AverageC$ 325FlexibilityNo 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?

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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