Seattle

Cheap flights from Dallas to Seattle (SEA)

DFW — SEA
Oct 28 — Nov 41
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Cheapflights Tip: The best prices from Dallas to Seattle/Tacoma Intl are usually found in January or February, booked 32 days in advance, depart on a Wednesday or Thursday and return on a Thursday

Find flight deals from Dallas to Seattle

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Popular in

July

Cheapest in

January

Average price

$400
Provider with most accurate pricing for Dallas-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Dallas-Seattle/Tacoma Intl flights.
Highest demand for flights based on searches. 17% potential increase in price ($73 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in September 2026
  • Most accurate provider: When it comes to deals on Dallas-Seattle flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Dallas-Seattle flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Dallas-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dallas-Seattle flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Dallas-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dallas to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Dallas with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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

How far ahead should I book a flight from Dallas to Seattle?

Booking 31 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dallas to Seattle. 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 Dallas to Seattle?

Currently, January is the cheapest month in which you can book a flight from Dallas to Seattle (average of $266). Flying from Dallas to Seattle in July is currently the most expensive (average of $446). 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 DFW to SEA?

It’s optimal to fly from Dallas to Seattle in the afternoon. By choosing this option you can save up to 33% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Dallas to Seattle?

Travelers seeking maximum savings on their Dallas to Seattle flight should consider departing on Monday evenings 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.

The best insider tips for Dallas to Seattle flights

Cheapflights partnered with top experts to bring you the best recommendations for your Dallas to Seattle trip
Our travel experts
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Chris Dong

Chris Dong

Expert on DFW

Chris is a consumer travel reporter covering aviation, trending travel news, hotels, and loyalty programs—all for leading global publications like Travel + Leisure, The Washington Post, AFAR, and more. In addition to writing, Chris is a video host for Travel + Leisure, giving consumers an inside look at the latest in air travel.

Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Paul Rubio

Paul Rubio

Expert on DAL

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Reviews of airlines servicing Seattle

See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Dallas to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Dallas to Seattle Travel Guide

The airport in Seattle that you’ll get off your flight at is Seattle – Tacoma International Airport. Some people call it Sea-Tac Airport. It’s the main airport that services flights to the Seattle metro region in Washington state. The airport is 14 miles away from the Seattle downtown area, in a city called SeaTac. This airport is the biggest one operating in the Pacific Northwest. It’s a hub for Alaskan Airlines and is also a connector for many flights going to Asia.

Related info for your journey

  • Which eco-friendly airlines offer service between Dallas and Seattle?

    If you prefer to travel on a plane that supports ecological welfare, you may consider booking a flight from Dallas to Seattle with Alaska Airlines, United Airlines, or JetBlue Airlines. To lessen their reliance on fuel and carbon emissions, these enterprises have implemented fuel optimization technology. They are using a performance-based navigation system to look for opportunities to conserve fuel. In an effort to reduce noise pollution, these airlines have also modified their aircraft with lightweight, quiet, and far more sophisticated engines.

  • How can travelers decide whether their chosen airline to travel from Dallas to Seattle is effective and responsible?

    Compare all the top airlines that fly from Dallas to Seattle, such as Alaska Airlines, United Airlines, or JetBlue Airlines, before making travel plans to find out more about their varied sustainability initiatives. The carriers' Environmental, Social, and Governance reports are one tool for assessing their dedication to sustainability. IATA's Environmental Assessment for Airports and Ground Service Providers (IEnVA) reports can be used to monitor the environmental sustainability efforts of various airlines.

  • What environmentally friendly activities can I do while I'm traveling from Dallas to Seattle by flight?

    By just bringing the things you absolutely need, you can fly from Dallas to Seattle on a budget and with less weight. The lighter weight of the aircraft would result in much lower carbon dioxide emissions. If you want to reduce the emissions of carbon produced from each seat, you could also fly economy. Make sure to conduct as much research as you can on the airlines that support greener initiatives before making travel arrangements.

  • What airports serve Dallas to Seattle flights?

    You’ll likely be flying out of Dallas-Fort Worth International Airport to go to Seattle and land at Seattle – Tacoma International Airport. There are some flights offered at Dallas Love Field but not nearly as many. You can find several non-stop flights from DFW for the trip to Seattle.

  • Which airlines fly directly from Dallas to Seattle?

    When you fly out of DFW, you can go directly to Seattle on Spirit Airways. American Airlines also flies direct for this route. There are several flights offered by Alaska Airlines too. The flight time is about four and a half hours. Southwest also offers a non-stop flight from Love Field to Seattle.

  • What are the stopover options between Dallas to Seattle?

    Delta has some one-stop flights that land in Salt Lake City that have short stopover times which are under an hour. These trips only take five and a half to six hours. Other stopovers for Delta include Minneapolis and Los Angeles. United stops off in Denver for around an hour before heading on to Seattle. They also land in Houston sometimes. If you go with American Airlines, you’ll be stopping in either Los Angeles or Phoenix. Flying with Southwest could have you stopping in many different places. They have stopovers on this route in Denver, Las Vegas, San Jose, Oakland, St. Louis, and Sacramento.

  • Do I need a passport or a visa to fly from Dallas to Seattle?

    No you don’t need a passport or visa for this flight. Dallas to Seattle is a domestic flight. This only requires an acceptable form of identification be presented upon arrival for your flight.

  • What airport do you fly into for flights to Seattle from Dallas?

    If you book a flight to Seattle from Dallas, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 36 flights from Dallas to Seattle/Tacoma Intl per day from 7 different airlines.

  • What are the cheapest airlines flying from Dallas to Seattle round-trip?

    According to our current data, Frontier ($106), United Airlines ($162), and Delta ($189) offers the cheapest pricing from Dallas to Seattle. You may be able to fly from Dallas to Seattle for 70% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $66. American Airlines flights start at $99 while deals on Alaska Airlines start at $117 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Dallas to Seattle consider choosing Condor (93%), Scandinavian Airlines (92%) or Alaska Airlines (81%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Dallas to Seattle?

    Looking for the cheapest flight from Dallas to Seattle? While on average our users pay $1,515, our data indicates the cheapest price to be $168. The most popular route (Dallas/Fort Worth - Seattle/Tacoma Intl), is priced around $161.

  • Can I find deals for flights from Dallas to Seattle that include hotel bookings?

    Yes. In addition to deals on Dallas to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dallas to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dallas to Seattle.

  • Can I find deals for business class flights from Dallas to Seattle?

    Yes. Cheapflights offers flight deals from Dallas to Seattle 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 Dallas to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Dallas to Seattle (average of $266). Flying from Dallas to Seattle in July is currently the most expensive (average of $446). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
Poulsbo

Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from Dallas to Seattle

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$106Average$268FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$162Average$451FlexibilityNo cancel feeOn-time69%
DeltaCheapest$189Average$385FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$193Average$507FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$198Average$423FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$207Average$423FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$316Average$426FlexibilityNo cancel feeOn-time85%

Helpful tips for your next trip to Seattle

  • When traveling from Dallas to Seattle and wish to land at a green airport, think about using Seattle-Tacoma International Airport (SEA). SEA is dedicated to generating solar energy in a bid to reduce its negative influence on water usage.
  • Dallas Fort Worth International Airport (DFW) may be chosen as the leaving airport for flights from Dallas to Seattle if one is searching for an ecologically friendly airport. DFW is dedicated to ban single-use plastics from its facilities as part of a sustainable program.
  • Using buses from SEA is typically a wise choice if you wish to explore Seattle. Using public transportation reduces the amount of carbon dioxide released onto the roads.

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