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Cheap flights from Seattle to Dallas from C$ 218

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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
22 Jul — 29 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dallas are usually found in October or January, booked 89 days in advance, depart on a Friday or Saturday 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 22 June 2026.

Mon 3/88:53 p.m.
SEA
-
DFW
1 stop6h 50m
Frontier
Fri 14/87:25 a.m.
DFW
-
SEA
1 stop12h 26m
Frontier
Deal found 21/6C$ 419
Mon 7/99:29 p.m.
SEA
-
DFW
1 stop19h 49m
Frontier
Wed 9/96:00 a.m.
DFW
-
SEA
1 stop16h 01m
Frontier
Deal found 20/6C$ 422
Wed 12/88:13 p.m.
SEA
-
DFW
1 stop7h 35m
Multiple Airlines
Wed 19/83:49 p.m.
DFW
-
SEA
Nonstop4h 22m
Multiple Airlines
Deal found 20/6C$ 429
Tue 30/63:33 p.m.
SEA
-
DFW
1 stop6h 11m
Frontier
Wed 15/77:31 a.m.
DFW
-
SEA
1 stop13h 27m
Frontier
Deal found 21/6C$ 437
Thu 10/99:16 p.m.
SEA
-
DFW
1 stop6h 21m
Frontier
Tue 15/911:42 a.m.
DFW
-
SEA
2 stops14h 45m
Frontier
Deal found 19/6C$ 442
Tue 30/67:41 p.m.
SEA
-
DFW
1 stop10h 28m
Frontier
Mon 13/75:18 a.m.
DFW
-
SEA
1 stop8h 02m
Frontier
Deal found 21/6C$ 446
Sat 4/711:53 a.m.
SEA
-
DFW
1 stop10h 06m
Frontier
Wed 8/77:31 a.m.
DFW
-
SEA
1 stop13h 27m
Frontier
Deal found 20/6C$ 456
Wed 15/77:06 p.m.
SEA
-
DFW
1 stop11h 03m
Multiple Airlines
Wed 22/76:24 a.m.
DFW
-
SEA
Nonstop4h 21m
Multiple Airlines
Deal found 17/6C$ 464
Thu 2/711:53 a.m.
SEA
-
DFW
1 stop10h 06m
Frontier
Sat 18/75:18 a.m.
DFW
-
SEA
1 stop5h 59m
Frontier
Deal found 21/6C$ 467
Sat 29/88:40 a.m.
SEA
-
DFW
Nonstop4h 06m
Multiple Airlines
Wed 2/93:35 p.m.
DFW
-
SEA
1 stop29h 23m
Multiple Airlines
Deal found 17/6C$ 474
Wed 30/91:40 p.m.
SEA
-
DAL
Nonstop4h 00m
Southwest
Tue 6/108:10 a.m.
DAL
-
SEA
Nonstop4h 25m
Southwest
Deal found 22/6C$ 474
Sat 15/85:30 a.m.
SEA
-
DAL
1 stop8h 10m
Southwest
Sat 22/88:00 a.m.
DAL
-
SEA
Nonstop4h 10m
Southwest
Deal found 20/6C$ 488

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 22 June 2026.

Round-trip from

C$ 419

One-way from

C$ 218

Popular in

June

Cheapest in

October

Average price

C$ 651
Frontier
  • Frontier
  • 3/8-14/8
  • 2 total stops
  • 19h 16m total
  • Seattle to Dallas
Search Deals
Frontier
  • Frontier
  • 20/7
  • 1 total stop
  • 12h 04m total
  • Seattle to Dallas
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 145 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 22 June 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

Tue 29/9

10:45 a.m.-4:56 p.m.

Nonstop4h 11m

Dallas/Fort Worth

Wed 30/9

3:56 p.m.-6:18 p.m.

Nonstop4h 22m

C$ 514

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 21/7

6:02 a.m.-11:59 a.m.

Nonstop3h 57m

Dallas/Fort Worth

Wed 29/7

8:45 p.m.-11:05 p.m.

Nonstop4h 20m

C$ 519

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 29/8

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

Nonstop4h 00m

Dallas/Fort Worth

Wed 2/9

5:00 p.m.-7:27 p.m.

Nonstop4h 27m

C$ 534

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 29/8

8:40 a.m.-2:46 p.m.

Nonstop4h 06m

Dallas/Fort Worth

Tue 1/9

3:49 p.m.-6:11 p.m.

Nonstop4h 22m

C$ 534

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Thu 10/9

6:30 a.m.-5:00 p.m.

2 stops8h 30m

Dallas Love Field

Tue 15/9

11:45 a.m.-6:10 p.m.

2 stops8h 25m

C$ 538

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Wed 15/7

6:15 a.m.-2:10 p.m.

1 stop5h 55m

Dallas Love Field

Wed 22/7

7:45 p.m.-12:35 a.m.

1 stop6h 50m

C$ 541

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 18/8

7:45 a.m.-1:49 p.m.

Nonstop4h 04m

Dallas/Fort Worth

Mon 24/8

5:59 p.m.-8:21 p.m.

Nonstop4h 22m

C$ 552

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 22/7

9:15 a.m.-3:13 p.m.

Nonstop3h 58m

Dallas/Fort Worth

Wed 29/7

6:30 a.m.-8:46 a.m.

Nonstop4h 16m

C$ 553

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Mon 7/9

11:00 p.m.-8:05 a.m.

1 stop7h 05m

Dallas Love Field

Wed 9/9

4:55 p.m.-11:05 p.m.

1 stop8h 10m

C$ 560

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 27/8

12:25 p.m.-6:35 p.m.

Nonstop4h 10m

Dallas/Fort Worth

Wed 2/9

3:49 p.m.-6:11 p.m.

Nonstop4h 22m

C$ 562

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/6

Showing 1-10 of 43 resultsSorted by cheapest first
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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

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 C$ 122). Flying from Seattle to Dallas in May is currently the most expensive (average of C$ 1,156). 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 22 June 2026.

It’s typically best to fly out from Seattle to Dallas at noon. Doing so could potentially save you 30% on the flight price compared to flying in the morning, which is usually more expensive.

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 22 June 2026.

The most flights from SEA to A78 are scheduled on a Friday (61 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (43 on average).

How much does it cost to fly round-trip from Seattle to Dallas?

How often are flights from Seattle to Dallas delayed?

About 14% of weekly flights between Seattle and Dallas have experienced delays in the past year, with the average delay time being 148 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 past year, American Airlines has had the lowest number of delays on this route, with just 13% of flights being delayed.

How far ahead should I book a flight from Seattle to Dallas?

Booking 88 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 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 Saturday at noon 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.

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 22 June 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
7.9
Good
12,558 reviews
Check prices

Entertainment

7.0

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Alaska Airlines
7.9
Good
12,558 reviews
Alaska Airlines
7.9
Good
12,558 reviews
Check prices

Entertainment

7.0

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Hawaiian Airlines
7.8
Good
2,827 reviews
Alaska Airlines
7.9
Good
12,558 reviews
Check prices

Entertainment

7.0

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
American Airlines
7.1
Good
11,728 reviews
Alaska Airlines
7.9
Good
12,558 reviews
Check prices

Entertainment

7.0

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Frontier
5.6
Fair
2,875 reviews
Alaska Airlines
7.9
Good
12,558 reviews
Check prices

Entertainment

7.0

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

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 50 outbound flights to Dallas per day from 4 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 2683 km. Most flights are nonstop.

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

    Frontier, at C$ 47, was found to be the cheapest airline from Seattle to Dallas.Alternate airlines to your destination round-trip include Alaska Airlines and American Airlines. Users have found that Frontier is 90% cheaper than the other options available to this destination.

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

    Consider Hawaiian Airlines (89%), STARLUX Airlines (86%) or Alaska Airlines (85%) 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$ 204. On average you can expect to pay C$ 611. The most popular route, (Seattle/Tacoma Intl - Dallas/Fort Worth), can usually be booked for C$ 427.

  • 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 C$ 122). Flying from Seattle to Dallas in May is currently the most expensive (average of C$ 1,156). 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
Seattle to Hobby flights
Seattle to George Bush Intcntl flights
Bellingham to Dallas/Fort Worth flights

Top 4 airlines flying from Seattle to Dallas

Discover the top 4 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 22 June 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 47AverageC$ 305FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Alaska AirlinesCheapestC$ 152AverageC$ 394FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
American AirlinesCheapestC$ 154AverageC$ 363FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Hawaiian AirlinesCheapestC$ 173AverageC$ 331FlexibilityNo 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.

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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