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Cheap flights from Dallas/Fort Worth Airport to Seattle

DFW — SEA
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Dallas/Fort Worth to Seattle/Tacoma Intl are usually found in January or October, booked 47 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Dallas/Fort Worth to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Dallas/Fort Worth (DFW) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 September 2025.

Popular in

July

Cheapest in

January

Average price

C$ 352

Good one-way deal

C$ 135 or less
Highest demand for flights based on searches. 14% potential increase in price (C$ 85 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 12 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a one-way flight from Dallas/Fort Worth to Seattle/Tacoma Intl.
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Best time to book a flight from Dallas/Fort Worth to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Dallas/Fort Worth with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Dallas/Fort Worth Airport to Seattle

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

Use this chart to determine the optimal time to book a round-trip flight from Dallas/Fort Worth to Seattle. Price data was last updated on 29 August 2025.

The price you pay for your flight from Dallas/Fort Worth Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Dallas/Fort Worth Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Seattle (average of C$ 262). Flying from Dallas/Fort Worth Airport to Seattle in December is currently the most expensive (average of C$ 353). 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?

Find hourly flight availability from Dallas/Fort Worth to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 76% on flights from Dallas/Fort Worth Airport to Seattle by exploring options for tickets at noon.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 11 September 2025.
Read through reviews of airlines operating flights from Dallas/Fort Worth Airport to Seattle, such as Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Dallas/Fort Worth to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For a flight from Dallas/Fort Worth to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 18.4 km from the centre of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 39 inbound flights from Dallas/Fort Worth per day. 1 airline has flights to Seattle/Tacoma Intl from Dallas/Fort Worth on a regular basis.

  • What is the cheapest airline to fly from Dallas/Fort Worth Airport to Seattle round-trip?

    Cheapflights users have booked flights from Dallas/Fort Worth Airport to Seattle round-trip from C$ 206. Alaska Airlines is priced at 45% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Dallas/Fort Worth Airport to Seattle?

    Before booking your flight to Seattle from Dallas/Fort Worth Airport, check out the most reliable airlines to get you to your destination on time: Scandinavian Airlines (91%), Delta (85%), Korean Air( 80%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dallas/Fort Worth 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/Fort Worth Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Seattle (average of C$ 262). Flying from Dallas/Fort Worth Airport to Seattle in December is currently the most expensive (average of C$ 353). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
SeaTac
Tukwila
Tacoma
Bothell
Cashmere
Renton
Olympia
Marysville
Lynnwood

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Dallas/Fort Worth to Seattle

Discover the top airline that operate flights from Dallas/Fort Worth to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 206AverageC$ 363FlexibilityNo cancel feeOn-time75%
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Fly with Cheapflights

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How does Cheapflights help users find flights from Dallas/Fort Worth to Seattle?

When you search for this flight from Dallas/Fort Worth to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Dallas/Fort Worth to Seattle?

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Can Cheapflights find flights from Dallas/Fort Worth to Seattle with no change fees?

Need flexible booking options for your flight to Seattle from Dallas/Fort Worth? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Dallas/Fort Worth to Seattle become cheaper?

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