DFW - SEA

Find cheap flights from Dallas to Seattle

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dallas to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dallas to Seattle, as well as popular online travel agencies
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Flight Deals
Expert advice
Booking Insights
Flight Deals

Cheap Flights from Dallas to Seattle (DFW-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dallas to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dallas to Seattle

American Airlines Logo
DFW-SEA
4h 26mdirect
American Airlines Logo
SEA-DFW
3h 53mdirect
American Airlines
Find Deal
Condor Logo
DFW-SEA
4h 38mdirect
Condor Logo
SEA-DFW
4h 03mdirect
Condor
Find Deal
Qatar Airways Logo
DFW-SEA
4h 17mdirect
Qatar Airways Logo
SEA-DFW
4h 02mdirect
Qatar Airways
Find Deal
Delta Logo
DFW-SEA
4h 32mdirect
Delta Logo
SEA-DFW
4h 06mdirect
GOL Logo
DFW-SEA
4h 26mdirect
GOL Logo
SEA-DFW
4h 06mdirect
STARLUX Airlines Logo
DFW-SEA
4h 39mdirect
STARLUX Airlines Logo
SEA-DFW
4h 02mdirect
STARLUX Airlines
Find Deal
Alaska Airlines Logo
DFW-SEA
4h 17mdirect
Alaska Airlines Logo
SEA-DFW
4h 02mdirect
Alaska Airlines
Find Deal
Frontier Logo
DFW-SEA
4h 32mdirect
Frontier Logo
SEA-DFW
4h 01mdirect
Frontier
Find Deal
Cathay Pacific Logo
DFW-SEA
4h 22mdirect
Cathay Pacific Logo
SEA-DFW
4h 05mdirect
Cathay Pacific
Find Deal
Qantas Airways Logo
DFW-SEA
4h 25mdirect
Qantas Airways Logo
SEA-DFW
3h 53mdirect
Qantas Airways
Find Deal
Finnair Logo
DFW-SEA
4h 28mdirect
Finnair Logo
SEA-DFW
4h 00mdirect
Finnair
Find Deal
Scandinavian Airlines Logo
DFW-SEA
4h 25mdirect
Scandinavian Airlines Logo
SEA-DFW
4h 00mdirect
Scandinavian Airlines
Find Deal
Hawaiian Airlines Logo
DFW-SEA
4h 17mdirect
Hawaiian Airlines Logo
SEA-DFW
4h 02mdirect
Hawaiian Airlines
Find Deal
Iberia Logo
DFW-SEA
4h 26mdirect
Iberia Logo
SEA-DFW
3h 53mdirect
Iberia
Find Deal
Korean Air Logo
DFW-SEA
4h 32mdirect
Korean Air Logo
SEA-DFW
4h 05mdirect
Korean Air
Find Deal
Air Tahiti Nui Logo
DFW-SEA
4h 17mdirect
Air Tahiti Nui Logo
SEA-DFW
4h 02mdirect
Air Tahiti Nui
Find Deal
Singapore Airlines Logo
DFW-SEA
4h 24mdirect
Singapore Airlines Logo
SEA-DFW
4h 02mdirect
Singapore Airlines
Find Deal
British Airways Logo
DFW-SEA
4h 17mdirect
British Airways Logo
SEA-DFW
4h 00mdirect
British Airways
Find Deal
Gulf Air Logo
DFW-SEA
4h 26mdirect
Gulf Air Logo
SEA-DFW
4h 00mdirect
Gulf Air
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by travel experts
Delta's Comfort Plus offers extra legroom for comfort.
Frontier's Economy Bundle includes a carry-on and seat choice.
Expert advice
Expert advice
Expert advice
Expert advice
When to book
4 weeks
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 25% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
American Airlines
Sun 14/9
DFW - SEA • Direct
Cheapest one-way flights
American Airlines
Sun 14/9
DFW - SEA • Direct
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Expert advice

Expert advice for your flight from Dallas to Seattle

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
American Airlines

American's Main Cabin Extra offers early boarding and complimentary drinks.


Download the American Airlines app for in-flight entertainment access.

Frontier

Frontier's Economy Bundle includes a carry-on and seat choice, ideal for budget-conscious travelers.


Avoid Basic Fare to prevent middle seats; consider Economy Bundle for seat selection and carry-on.

Read more about Frontierby Stefanie Waldek
Delta

Delta's Comfort Plus offers extra legroom, ideal for a more comfortable journey.


Delta provides free Wi-Fi for SkyMiles members on domestic flights.

Read more about Deltaby Stefanie Waldek
Alaska Airlines

Alaska's Wine Flies Free program allows free wine check-in from select airports.


Alaska offers 20-minute baggage guarantee; receive bonus miles if delayed.

Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines and Alaska Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and Delta

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Booking Insights

KAYAK's insights & trends for Dallas to Seattle flights

Get data-powered insights and trends into flights from Dallas to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Dallas to Seattle?

The average price of all round-trip flights from Dallas/Fort Worth Airport to Seattle clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Dallas to Seattle, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Seattle, Wednesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Dallas/Fort Worth Airport to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dallas/Fort Worth Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Dallas/Fort Worth Airport to Seattle is January, where tickets cost C$ 282 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is C$ 461 and C$ 446 respectively.

How far in advance should I book a flight from Dallas/Fort Worth Airport to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Dallas/Fort Worth Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Dallas/Fort Worth Airport to Seattle, you should book around 4 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJanuary
Best time to beat the crowds (26% less expensive on average)
Most popular time to fly (21% more expensive on average)

When to book flights from Dallas to Seattle

Are your dates flexible? Find out the best times to travel from Dallas to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Dallas to Seattle flights

  • Which airlines offer Wi-Fi service onboard planes from Dallas to Seattle?

    American Airlines, Alaska Airlines, Hawaiian Airlines, Delta, and Japan Airlines offer inflight Wi-Fi service on the Dallas to Seattle flight route.

  • Which aircraft models fly most regularly from Dallas to Seattle?

    The Boeing 737-900 Passenger/BBJ3 (winglets) is the aircraft model that flies most regularly on the Dallas to Seattle flight route.

  • Which airline alliances offer flights from Dallas to Seattle?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Dallas and Seattle, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Dallas to Seattle?

    There are direct flights from Dallas to Seattle on a daily basis.

  • How does KAYAK find such low prices on flights from Dallas to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Dallas to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dallas to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Dallas is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Dallas to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Dallas with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dallas to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Dallas up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Dallas/Fort Worth Airport to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 135 or less one-way.

Prefer to fly direct from Dallas to Seattle?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Dallas/Fort Worth to Seattle/Tacoma Intl.
Find which airlines fly direct from Dallas/Fort Worth Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Dallas/Fort Worth to Seattle/Tacoma Intl

Monday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Tuesday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Wednesday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Thursday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Friday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Saturday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Sunday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

See more nonstop flights

Direct returns

Seattle/Tacoma Intl to Dallas/Fort Worth

Monday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Tuesday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Wednesday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Thursday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Friday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Saturday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Sunday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

See more nonstop flights

Reviews of the top airline flying from Dallas to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Dallas to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dallas to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.8Comfort
7.0Entertainment
7.1Food
8.5Crew
8.1Boarding
Airline reviews

My flight was delayed 2 hours which led me to lose my connection. As a consequence, I had to spend hours changing flights and hotel reservations to arrange my arrival to Vancouver.

2.0 MediocreAnonymous, Sep 2025BWI - SEA
Read more Alaska Airlines reviews

My flight was delayed 2 hours which led me to lose my connection. As a consequence, I had to spend hours changing flights and hotel reservations to arrange my arrival to Vancouver.

No Free Wifi and the flight was a tad late.

The plane was clean. They got us to the destination. It was very difficult to hear the announcements at the gate. The person was speaking way too quickly, and the sound system did not carry to all parts of the seating area at the gate. The flight left more than an hour late, which left many of the passengers missing connections.

The flights left both airports on schedule. The flight from Idaho Falls to Seattle was a typical commuter trip. The flight from Seattle to Maui was not good: It was too long for a flight in a single-aisle plane and too cramped. I kept asking myself if I would ever visit Maui again if airlines continue to run this long flight like a typical short commuter flight. I am not looking forward to the trip home.

The chicken salad was very small, the lettuce was wilted and there was no flavor. The hamburger was excellent.

Mid flight we were bothered by a bee. Kind of odd, but a bee allergy made it a bit stressful. Attendants passed by our aisle during service multiple times. Otherwise, it was fine.

5 1/2 hour flight with no food service or options is inexcusable.

Mostly good. Delayed which in my experience so far happens often with Alaska Airlines. Thank you.

Excellent overall, but had to wait 30 months while taxiing. In fact, I’m still on the plane now!

We received a check-in reminder the day before the flight, and it listed the flight at a later time. Correct flight number, same seats, etc. for 3 hours later. I called the airline to confirm and they had no record of the email. The info was wrong, and we would have missed our flight if we'd assumed it was correct. I want to know where/how we received this incorrect info.

Everything you need to know for your flight from Dallas to Seattle

Information on your arrival and departure airports

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