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
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
Multiple Airlines
Tue 23/12
DFW - SEA • multi-stop
Cheapest one-way flights
Multiple Airlines
Tue 23/12
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 34% 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
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 Saturday, 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 January, where tickets cost C$ 285 (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$ 457 and C$ 442 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 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 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.
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.

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.

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

Good to know

Low seasonFebruary
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (20% 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, Hawaiian Airlines, Japan Airlines, Lufthansa, and Finnair.

  • 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.

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 11512 reviews
7.1Food
8.1Boarding
8.5Crew
7.8Comfort
7.0Entertainment
Airline reviews

Didn’t realize we couldn’t actually get the full food menu while on-board. I saw that pre-ordering was available but didn’t realize the impact. Also didn’t know there weren’t entertainment devices on board had to bring your own device which I would’ve preferred to have clarity about ahead of time.

10.0 ExcellentLavenia, Dec 2025
ATL - SEA
Read more Alaska Airlines reviews

Didn’t realize we couldn’t actually get the full food menu while on-board. I saw that pre-ordering was available but didn’t realize the impact. Also didn’t know there weren’t entertainment devices on board had to bring your own device which I would’ve preferred to have clarity about ahead of time.

Flight was on time. Crew was helping & seat were comfortable.

Great airline attendants. However I could not get the entertainment to work on the app

Great …check-in was a little messy but went by quick.

Alaska Airlines has horrible customer service. After sitting in a packed airplane for over an hour, they decided to cancel our flight and had us deplane. Instead of helping us nearby, we had to ride two trains (in Seattle Airport), from the S-Gates to the C-Gates; only to stand in a line for 3 and a half hours. Throughout the 3 hours, there was often 1 agent at the customer service counter to help the passengers trying to get information and accommodation on a flight that they cancelled. Do better!

There was no food or entertainment. I was in the middle seat which was uncomfortable. The flight and crew were fine.

Service was excellent and the fact that I didn’t have to request to sit next to my kids when there were no seats next to each other was amazing. Love how Alaska anticipated the seat arrangements. One feature that would take the flight from good to amazing would be to have a screen available with headphones with games and movies, but the kids loved the little boxes and were entertaining with the game—it also helped them get away from too much screen time.

The staff was friendly and the flight ran on time. Boarding was a zoo. This process could be greatly improved. They have done away with the entertainment they used to offer in favor a wifi signal for our phones and that wasn't working in half the flights. The beverage selection is poor and the quantity was minimal. I'm sure when the airlines can come up with something cheaper to serve than pretzels they they will switch to it. If their budget is that tight what else are they skimping on? (Maintenance, fuel, safety) Over all I'm underwhelmed!

Why is a fanny pack considered a third carry on? This shouldn't be regulated at the gate

1. Denial of Basic Needs (SEA): Upon arrival in Seattle, the wheelchair attendant refused my urgent request to use the restroom, insisting on scanning documents first. She eventually took me to a restroom but then abandoned me and my autistic son at an unstaffed, deserted gate for over four hours. When I called the accommodation line for help, I was told to "get someone's attention," which was impossible. My son, traumatized by the prospect of me yelling for help, was forced to wander the terminal to find assistance. 2. Revocation of Accommodations & Threats: At the gate, an agent stated I had no accommodations on file, despite my previous leg having them. When I showed the app (where my bulkhead seat was erased and replaced with Row 14), he denied the evidence. When I attempted to advocate for my immobilized leg, he threatened to "yank me from the flight" if I said one more word. He coerced me into agreeing that I was "asking for accommodations for the first time" before he would allow assistance, effectively forcing me to falsify the situation under duress. I complied only out of fear of being stranded in a strange city. 3. On-Board Negligence and Injury: Because my bulkhead seat was revoked, I was forced into Row 14. With my leg immobilized and unable to bend, it extended into the aisle. During boarding and the flight: 16 different passengers tripped over my injured leg. 6 rolled luggage bags were pulled over my injured leg. The Flight Attendant (FA) was one of the people who tripped and drove luggage over me. I reported the issue to the FA after 10 trips and 3 luggage impacts. He ignored me. He only addressed me later to ask me to move my immobilized leg for beverage service. I informed him again: "16 people have tripped, 6 luggage runovers, I cannot bend it." He provided no medical aid and no incident report. 4. Resolution and Trauma: Eventually, a different employee noticed my distress and my original paper boarding pass showing the correct bulkhead assignment. He asked me to move up. I broke down in tears, terrified that moving would cause the gate agent to remove me from the plane as threatened. We were eventually moved to the bulkhead, but the damage was done. My autistic son was traumatized by watching his mother be trampled and threatened. 5. Post-Flight: I called to report these injuries, but was disconnected after a 45-minute hold. I require a formal record of this injury and these violations.

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

Information on your arrival and departure airports