Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Seattle to Dallas from C$ 125

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DFW
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dallas are usually found in September or October, 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 15 April 2025.

Round-trip from

C$ 261

One-way from

C$ 125

Popular in

May

Cheapest in

September

Average price

C$ 427
Frontier
  • Frontier
  • 8/5-10/5
  • 2 total stops
  • 16h 45m total
  • Seattle to Dallas
Search Deals
Delta
  • Delta
  • 20/5
  • Nonstop
  • 4h 08m total
  • Seattle to Dallas
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 15 April 2025.

Wed 23/46:00 a.m.SEA - DFW
1 stop15h 04mFrontier
Sat 26/47:20 a.m.DFW - SEA
1 stop9h 57mFrontier
Deal found 15/4C$ 261
Wed 7/55:50 p.m.SEA - DFW
Nonstop3h 59mDelta
Tue 13/54:30 p.m.DFW - SEA
Nonstop4h 29mDelta
Deal found 14/4C$ 277
Wed 7/511:25 a.m.SEA - DAL
Nonstop3h 58mHawaiian Airlines
Wed 14/56:23 p.m.DAL - SEA
Nonstop4h 21mHawaiian Airlines
Deal found 15/4C$ 277
Wed 7/511:25 a.m.SEA - DAL
Nonstop3h 58mAlaska Airlines
Wed 14/56:23 p.m.DAL - SEA
Nonstop4h 21mAlaska Airlines
Deal found 15/4C$ 298
Tue 29/49:00 a.m.SEA - DFW
Nonstop4h 00mHawaiian Airlines
Wed 7/510:00 a.m.DFW - SEA
Nonstop4h 28mHawaiian Airlines
Deal found 13/4C$ 311
Tue 3/612:34 a.m.SEA - DFW
Nonstop3h 46mAlaska Airlines
Fri 13/68:36 p.m.DFW - SEA
Nonstop4h 19mAlaska Airlines
Deal found 14/4C$ 317
Wed 23/49:00 a.m.SEA - DFW
Nonstop4h 00mMultiple Airlines
Sat 26/47:20 a.m.DFW - SEA
1 stop9h 57mMultiple Airlines
Deal found 15/4C$ 321
Sat 21/63:58 p.m.SEA - DFW
1 stop6h 05mSpirit Airlines
Sat 19/79:00 a.m.DFW - SEA
1 stop8h 53mSpirit Airlines
Deal found 14/4C$ 330
Tue 29/710:40 p.m.SEA - DAL
1 stop6h 55mSouthwest
Wed 27/87:30 p.m.DAL - SEA
1 stop6h 35mSouthwest
Deal found 15/4C$ 330
Mon 23/611:59 p.m.SEA - DFW
1 stop6h 55mUnited Airlines
Mon 30/66:00 a.m.DFW - SEA
1 stop6h 08mUnited Airlines
Deal found 14/4C$ 355
Tue 24/66:24 p.m.SEA - DFW
1 stop13h 03mSun Country Air
Sat 28/68:35 p.m.DFW - SEA
1 stop13h 27mSun Country Air
Deal found 14/4C$ 542
Thu 19/611:40 p.m.SEA - DAL
1 stop7h 40mDelta
Sat 21/65:45 a.m.DAL - SEA
1 stop8h 25mDelta
Deal found 15/4C$ 583

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 15 April 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 8/5

8:22 p.m.-5:47 a.m.

1 stop7h 25m

Dallas/Fort Worth

Sat 10/5

8:00 a.m.-3:20 p.m.

1 stop9h 20m

C$ 261

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Wed 7/5

5:50 p.m.-11:49 p.m.

Nonstop3h 59m

Dallas/Fort Worth

Tue 13/5

4:30 p.m.-6:59 p.m.

Nonstop4h 29m

C$ 277

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Wed 7/5

11:25 a.m.-5:23 p.m.

Nonstop3h 58m

Dallas Love Field

Wed 14/5

6:23 p.m.-8:44 p.m.

Nonstop4h 21m

C$ 277

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Wed 7/5

11:25 a.m.-5:23 p.m.

Nonstop3h 58m

Dallas Love Field

Wed 14/5

6:23 p.m.-8:44 p.m.

Nonstop4h 21m

C$ 298

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 26/7

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

Nonstop4h 00m

Dallas/Fort Worth

Wed 27/8

3:08 p.m.-5:27 p.m.

Nonstop4h 19m

C$ 327

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Sat 21/6

3:58 p.m.-12:03 a.m.

1 stop6h 05m

Dallas/Fort Worth

Sat 19/7

9:00 a.m.-3:53 p.m.

1 stop8h 53m

C$ 330

SeattleDallas

SEA - DAL

SEADAL

Seattle/Tacoma Intl

Tue 29/7

10:40 p.m.-7:35 a.m.

1 stop6h 55m

Dallas Love Field

Wed 27/8

7:30 p.m.-12:05 a.m.

1 stop6h 35m

C$ 330

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Tue 29/4

9:00 a.m.-3:00 p.m.

Nonstop4h 00m

Dallas/Fort Worth

Wed 30/4

7:33 p.m.-10:00 p.m.

Nonstop4h 27m

C$ 346

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Thu 8/5

6:03 p.m.-11:59 p.m.

Nonstop3h 56m

Dallas/Fort Worth

Sat 10/5

6:00 p.m.-12:10 a.m.

1 stop8h 10m

C$ 350

SeattleDallas

SEA - DFW

SEADFW

Seattle/Tacoma Intl

Mon 23/6

11:59 p.m.-8:54 a.m.

1 stop6h 55m

Dallas/Fort Worth

Mon 30/6

6:00 a.m.-10:08 a.m.

1 stop6h 08m

C$ 355

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/4

Showing 1-10 of 23 results
1
2
3

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 11 April 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 May is currently the most expensive (average of C$ 584). 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 15 April 2025.

It’s typically best to fly out from Seattle to Dallas in the afternoon. Doing so could potentially save you 50% 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. 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 15 April 2025.

The most flights from SEA to A78 are scheduled on a Monday (60 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (40 on average).

Rainfall in Dallas by month

Plan your trip to Dallas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Dallas ranges from 48.0 - 125.0 mm per month. May is typically the wettest month, when rainfall can reach 125.0 mm. August is typically the driest time to visit Dallas when rainfall is around 48.0 mm.

Temperature in Dallas by month

Plan your trip to Dallas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Dallas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 8.0 C).

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 15 April 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Seattle to Dallas to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,876 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,876 reviews
Alaska Airlines
8.0
Very good
9,876 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,279 reviews
Alaska Airlines
8.0
Very good
9,876 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,876 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,374 reviews
Alaska Airlines
8.0
Very good
9,876 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,658 reviews
Alaska Airlines
8.0
Very good
9,876 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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 46 outbound flights to Dallas per day from 5 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?

    Frontier, at C$ 261, was found to be the cheapest airline from Seattle to Dallas.Alternate airlines to your destination round-trip include Delta and Hawaiian Airlines. Users have found that Frontier is 35% cheaper than the other options available to this destination.

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

    C$ 125 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Frontier, with prices starting from C$ 132 and C$ 138, respectively.

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

    Consider Condor (86%), Finnair (86%) or STARLUX Airlines (86%) 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$ 157. On average you can expect to pay C$ 293. The most popular route, (Seattle/Tacoma Intl - Dallas/Fort Worth), can usually be booked for C$ 314.

  • 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 May is currently the most expensive (average of C$ 584). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 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 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapestC$ 84AverageC$ 299FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
FrontierCheapestC$ 129AverageC$ 245FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 151AverageC$ 329FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 165AverageC$ 303FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Alaska AirlinesCheapestC$ 219AverageC$ 422FlexibilityNo cancel feeOn-time75%
Search Alaska 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.