DFW - SEA

Find cheap flights from Dallas to Seattle

1 adult
1 adult, Economy, 0 bags

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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Everything you should know

Cheapest round-trip
Multiple Airlines
Tue 10/2
DFW - SEA • multi-stop
Cheapest one-way flights
Multiple Airlines
Tue 10/2
DFW - SEA • multi-stop
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
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 35% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 14% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Expert advice
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

Multiple Airlines Logo
DFW
-
SEA
4291 kmmulti-stop
Multiple Airlines Logo
SEA
-
DFW
4291 kmmulti-stop
Multiple Airlines
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 Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Seattle, Friday 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 April, where tickets cost C$ 332 (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$ 452 and C$ 440 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 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from Dallas to Seattle

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines and Alaska Airlines

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.

Stefanie Waldek

Stefanie Waldek

Expert on Frontier and Delta

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.

Good to know

Low seasonJanuary
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (16% 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?

    All the following airlines offer inflight Wi-Fi service on the Dallas to Seattle flight route: American Airlines, Alaska Airlines, Delta, Japan Airlines, JetBlue, Alaska Airlines, Finnair, and Lufthansa.

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

    The Airbus A321-100/200 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 is the only airline alliance operating flights between Dallas and Seattle.

  • 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$ 292 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

Alaska Airlines,American Airlines, +1 more

Tuesday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Wednesday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Thursday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Friday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Saturday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Sunday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

See more nonstop flights

Direct returns

Seattle/Tacoma Intl to Dallas/Fort Worth

Monday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Tuesday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Wednesday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Thursday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Friday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Saturday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 more

Sunday

Alaska Airlines,American Airlines,Delta

Alaska Airlines,American Airlines, +1 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 11871 reviews
7.1Food
7.8Comfort
8.5Crew
7.0Entertainment
8.1Boarding
Airline reviews

The flight was on time and got in early which allowed us to get to our next flight.

10.0 ExcellentKen, Feb 2026
DFW - SEA
Read more Alaska Airlines reviews

The flight was on time and got in early which allowed us to get to our next flight.

The plane not having any overhead bin space was inconvenient. Anytime my luggage has to be checked it ends up covered in scratches and that’s not covered by the airlines for replacement/repair. The WiFi did not work or was not offered for the flight from Seattle to Vancouver.

Most of it was good. The flights were on time. The staff were helpful and friendly. I had a short time connecting flights and they let me deplane first and I made the connection. On the outbound from DTW to SEA I was seated in the middle of two very large people. I am petite and even with my arms crossed they were both hanging over into my seat touching me. The meal had way too much pepper and spice, my lips were burning. Other than those two issues, I was pleased with the service and the trip and will use Alaska Air again.

Wheelchair assistant was on the spot, and very helpful. Gate agent was kind, and made sure I boarded the plane without having to try to hurry with my painful hip. My seat was so comfortable, 20A. I am tall, 5'9 and I need to stretch out my legs due to chronic nerve pain in my back that runs down my right leg, in addition to the bursitis in my right hip. Alaska air has the best economy seating in the market. So much room for legs, elbows, etc. When I arrived in SEA, the next Wheelchair was waiting to take me to the next gate. Great communication.

I had to cancel my trip due to health reasons three days after making the reservation. I was stunned to find out that the ticket was not able to be credited for future travel. $734 loss. Not happy that this was not my experience with Southwest Airlines. I will stick with SW in the future. Boo Alaskan Air and Kayak.

The staff was extremely helpful and accommodating. The only thing I could have done without was the long layover in between flights but I was going to a less popular destination so it was understandable.

All went well, right on time, easy boarding. We ordered the evergreens grain bowl and were surprised and pleased how adequate it was for vegan lunch! Landing was smooth and gate exit was easy

My seat and tray were filthy. Someone’s used straw was in the seat pocket and there were coffee stains and food crumbs on the tray table

On time, good boarding process very quick. Clean planes. Planes are tight, not much leg room ( i am only 5'8"). Some attendants are moving through aisles fiercely and pushing passengers. Got yelled for a tiny man bag that it is an extra personal tem ( size of a wallet) Wi-Fi on the plane does not work well with android phones.

I didn’t go, and can’t use a no refundable ticket.

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

Information on your arrival and departure airports