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Cheap flights from Dallas to Seattle from $110

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dallas to Seattle departing on 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Dallas to Seattle

Cheap round-trip flights

Frontier Logo
10:25 pm - 12:07 pmDFW-SEA
15h 42m1 stop
Frontier Logo
10:16 am - 4:13 pmSEA-DFW
3h 57mnonstop
$180Frontier
Find Deal
Tue, Oct 21 - Fri, Oct 24
Frontier Logo
6:30 am - 8:48 amDFW-SEA
4h 18mnonstop
Frontier Logo
8:43 pm - 11:09 amSEA-DFW
12h 26m1 stop
$181Frontier
Find Deal
Fri, Oct 17 - Fri, Oct 24
Frontier Logo
6:30 am - 8:48 amDFW-SEA
4h 18mnonstop
Frontier Logo
10:16 am - 4:13 pmSEA-DFW
3h 57mnonstop
$182Frontier
Find Deal
Mon, Oct 13 - Mon, Oct 20
Frontier Logo
10:30 pm - 7:33 amDFW-SEA
11h 03m1 stop
Frontier Logo
12:58 pm - 12:10 amSEA-DFW
9h 12m1 stop
$183Frontier
Find Deal
Thu, Oct 23 - Tue, Oct 28
Multiple Airlines Logo
8:40 pm - 11:11 pmDFW-SEA
4h 31mnonstop
Multiple Airlines Logo
9:17 am - 3:18 pmSEA-DFW
4h 01mnonstop
$188Multiple Airlines
Find Deal
Sat, Dec 6 - Fri, Dec 12
Multiple Airlines Logo
6:00 am - 8:32 amDFW-SEA
4h 32mnonstop
Multiple Airlines Logo
7:45 am - 1:47 pmSEA-DFW
4h 02mnonstop
$191Multiple Airlines
Find Deal
Fri, Dec 5 - Tue, Dec 16
Alaska Airlines Logo
6:29 pm - 8:46 pmDFW-SEA
4h 17mnonstop
Alaska Airlines Logo
7:44 am - 1:50 pmSEA-DFW
4h 06mnonstop
$213Alaska Airlines
Find Deal
Sat, Oct 25 - Wed, Oct 29
Alaska Airlines Logo
9:27 pm - 12:02 amDFW-SEA
4h 35mnonstop
Alaska Airlines Logo
6:03 pm - 11:59 pmSEA-DFW
3h 56mnonstop
$217Alaska Airlines
Find Deal
Wed, Dec 24 - Sat, Jan 3
Southwest Logo
5:05 pm - 10:55 pmDAL-SEA
7h 50m1 stop
Southwest Logo
10:50 am - 6:55 pmSEA-DAL
6h 05m1 stop
$251Southwest
Find Deal
Tue, Oct 28 - Tue, Nov 4
Southwest Logo
6:35 am - 11:25 amDAL-SEA
6h 50m1 stop
Southwest Logo
11:50 am - 10:05 pmSEA-DAL
8h 15m1 stop
$255Southwest
Find Deal
Fri, Oct 31 - Sat, Nov 8

Frontier flights from Dallas to Seattle

Our best Frontier deals on Dallas to Seattle flight tickets
Frontier
Oct 21
DFW10:25 pmDallas/Fort Worth
15h 42m
1 stop
SEA12:07 pmSeattle/Tacoma Intl
Oct 24
SEA10:16 amSeattle/Tacoma Intl
3h 57m
DFW4:13 pmDallas/Fort Worth
$180
Find similar
Frontier
Oct 17
DFW6:30 amDallas/Fort Worth
4h 18m
SEA8:48 amSeattle/Tacoma Intl
Oct 24
SEA8:43 pmSeattle/Tacoma Intl
12h 26m
1 stop
DFW11:09 amDallas/Fort Worth
$181
Find similar
Frontier
Oct 13
DFW6:30 amDallas/Fort Worth
4h 18m
SEA8:48 amSeattle/Tacoma Intl
Oct 20
SEA10:16 amSeattle/Tacoma Intl
3h 57m
DFW4:13 pmDallas/Fort Worth
$182
Find similar

Alaska Airlines flights from Dallas to Seattle

Our best Alaska Airlines deals on Dallas to Seattle flight tickets
Alaska Airlines
Oct 25
DFW6:29 pmDallas/Fort Worth
4h 17m
SEA8:46 pmSeattle/Tacoma Intl
Oct 29
SEA7:44 amSeattle/Tacoma Intl
4h 06m
DFW1:50 pmDallas/Fort Worth
$213
Find similar
Alaska Airlines
Dec 24
DFW9:27 pmDallas/Fort Worth
4h 35m
SEA12:02 amSeattle/Tacoma Intl
Jan 3
SEA6:03 pmSeattle/Tacoma Intl
3h 56m
DFW11:59 pmDallas/Fort Worth
$217
Find similar
Alaska Airlines
Oct 28
DFW2:50 pmDallas/Fort Worth
4h 31m
SEA5:21 pmSeattle/Tacoma Intl
Nov 3
SEA12:58 amSeattle/Tacoma Intl
3h 57m
DFW6:55 amDallas/Fort Worth
$231
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Dallas to Seattle 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, momondo users made 832,500 searches. Data last updated September 29, 2025.
Use the filters below to find and compare flights from Dallas to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Tue 10/21

10:25 pm-12:07 pm

1 stop15h 42m

Seattle/Tacoma Intl

Fri 10/24

10:16 am-4:13 pm

Nonstop3h 57m

$180

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Fri 10/17

6:30 am-8:48 am

Nonstop4h 18m

Seattle/Tacoma Intl

Fri 10/24

8:43 pm-11:09 am

1 stop12h 26m

$181

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Mon 10/13

6:30 am-8:48 am

Nonstop4h 18m

Seattle/Tacoma Intl

Mon 10/20

10:16 am-4:13 pm

Nonstop3h 57m

$182

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Thu 10/23

10:30 pm-7:33 am

1 stop11h 03m

Seattle/Tacoma Intl

Tue 10/28

12:58 pm-12:10 am

1 stop9h 12m

$183

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 12/6

8:40 pm-11:11 pm

Nonstop4h 31m

Seattle/Tacoma Intl

Fri 12/12

9:17 am-3:18 pm

Nonstop4h 01m

$188

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Fri 12/5

6:00 am-8:32 am

Nonstop4h 32m

Seattle/Tacoma Intl

Tue 12/16

7:45 am-1:47 pm

Nonstop4h 02m

$191

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Sat 10/25

6:29 pm-8:46 pm

Nonstop4h 17m

Seattle/Tacoma Intl

Wed 10/29

7:44 am-1:50 pm

Nonstop4h 06m

$213

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

Wed 12/24

9:27 pm-12:02 am

Nonstop4h 35m

Seattle/Tacoma Intl

Sat 1/3

6:03 pm-11:59 pm

Nonstop3h 56m

$217

DallasSeattle

DAL - SEA

DALSEA

Dallas Love Field

Tue 10/28

5:05 pm-10:55 pm

1 stop7h 50m

Seattle/Tacoma Intl

Tue 11/4

10:50 am-6:55 pm

1 stop6h 05m

$251

DallasSeattle

DAL - SEA

DALSEA

Dallas Love Field

Fri 10/31

6:35 am-11:25 am

1 stop6h 50m

Seattle/Tacoma Intl

Sat 11/8

11:50 am-10:05 pm

1 stop8h 15m

$255

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Dallas to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Dallas to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $205. If you don’t want to visit Seattle in January, then you should wait until February to fly from Dallas, when ticket prices are also cheap, with an average price of $225.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Dallas is on a Friday. momondo users have found tickets for Friday departures for as low as $325. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Dallas because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $465.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Dallas at noon is the least expensive time of day to depart. momondo users have found prices as low as $378 when looking at flights departing at noon. Flights to Seattle are more costly in the evening, with an average ticket price of $429. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Dallas to Seattle/Tacoma Intl flight route?

Fly from Dallas/Fort Worth to Seattle/Tacoma Intl for the best Dallas - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Dallas when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $274 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Dallas for as low as $244 on momondo.

What cabin class options are available on Dallas to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Dallas to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Dallas to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dallas to Seattle

Fastest flight time

4h 14m

Direct flights

Every day

Airports in Seattle

1 airport
The fastest flight from Dallas to Seattle takes 4h 14m
Direct flights go from Dallas to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • How far is Dallas to Seattle/Tacoma Intl by plane?

    The distance between Dallas and Seattle/Tacoma Intl is about 1678.4 mi. A reasonable flight in good conditions will take 4h 17m.

  • When did momondo last update prices for flights from Dallas to Seattle/Tacoma Intl Airport?

    Prices for flights from Dallas to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Dallas to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Dallas to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Dallas to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Dallas to Seattle

Compare and see reviews for airlines that fly from Dallas to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $71Free CancellationRating
5.8
3,158 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $77Free CancellationRating
6.3
8,050 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $123Free CancellationRating
7.8
2,760 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $130Free CancellationRating
7.9
7,964 reviews
Search Delta flights
SouthwestPriceFrom $165Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $193Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $196Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $238Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Tukwila
Kirkland
Shoreline
Lakewood
Centralia
Fife
Cle Elum
Redmond
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Dallas to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Dallas to Seattle for you.

Can I find flights from Dallas to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Dallas on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Dallas to Seattle?

Once all potential Dallas to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Dallas to Seattle right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seattle from Dallas. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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