SEA - DFW

£119 Find Cheap Flights from Seattle to Dallas – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 34% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest return flight
£205
Typical prices: £218-£366
Frontier, Alaska Airlines
Mon 26/11Mon 3/12
SEA - DFW • 1 stop
Cheapest direct flights
£223
Typical prices: £226-£372
Alaska Airlines
Mon 3/12Wed 5/12
SEA - DFW • Direct
Advice from real travellers
American Basic Economy skips checked bags; Main Cabin Extra adds early boarding.
British Airways economy includes a cabin bag and 79 cm legroom for better comfort.
Expert advice
+1
Expert advice
+1
Direct flights
You can fly direct with American Airlines, Alaska Airlines, and Delta. Average duration is 4h
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 89% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg £158 (return)
Shortest trip • 7h 21m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Dallas/Fort Worth Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seattle to Dallas (SEA-DFW)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Seattle to Dallas

Thu, 26 Nov - Thu, 3 Dec
Multiple Airlines Logo
16:37 - 00:24SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
5h 47m1 stop Denver Intl
Multiple Airlines Logo
15:37 - 18:15DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
4h 38mdirect
£205Multiple Airlines
Thu, 26 Nov - Thu, 3 Dec
Frontier Logo
21:53 - 22:08SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
22h 15m2 stops Las Vegas Harry Reid Intl Nashville Intl
Frontier Logo
07:28 - 20:02DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
14h 34m2 stops Denver Intl Los Angeles
£211Frontier
Thu, 3 Dec - Wed, 9 Dec
Delta Logo
17:58 - 23:53SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
3h 55mdirect
Delta Logo
17:00 - 19:35DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
4h 35mdirect
£223Delta
Fri, 11 Dec - Fri, 18 Dec
Frontier Logo
21:09 - 05:36SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
6h 27m1 stop Las Vegas Harry Reid Intl
Frontier Logo
20:28 - 12:22DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
17h 54m1 stop Denver Intl
£223Frontier
Thu, 3 Dec - Wed, 9 Dec
Delta Logo
17:58 - 23:53SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
3h 55mdirect
Delta Logo
07:33 - 15:11DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
9h 38m1 stop Los Angeles
£230Delta
Mon, 23 Nov - Wed, 2 Dec
Alaska Airlines Logo
06:00 - 23:01SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
15h 01m1 stop San Diego
Alaska Airlines Logo
06:00 - 08:41DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
4h 41mdirect
£235Alaska Airlines
Thu, 3 Dec - Thu, 17 Dec
Delta Logo
12:31 - 23:52SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
9h 21m1 stop Los Angeles
Delta Logo
07:33 - 15:11DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
9h 38m1 stop Los Angeles
£238Delta
Tue, 1 Dec - Mon, 7 Dec
Delta Logo
17:58 - 23:53SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
3h 55mdirect
Delta Logo
17:00 - 19:35DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
4h 35mdirect
£239Delta
Tue, 15 Dec - Thu, 7 Jan
Alaska Airlines Logo
10:59 - 16:54SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
3h 55mdirect
Alaska Airlines Logo
09:12 - 14:13DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
7h 01m1 stop San Diego
£240Alaska Airlines
Fri, 11 Dec - Fri, 18 Dec
Frontier Logo
13:36 - 00:52SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
9h 16m1 stop Los Angeles
Frontier Logo
13:33 - 12:22DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
24h 49m2 stops Charlotte Douglas Denver Intl
£244Frontier
Booking Insights

Price, demand, and travel trends for Seattle to Dallas/Fort Worth Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Seattle to Dallas/Fort Worth Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Seattle to Dallas/Fort Worth Airport. It's 7% cheaper than the average day, while Sunday is the most expensive, with prices 13% higher.

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

•January is the cheapest month to fly from Seattle to Dallas/Fort Worth Airport at £213 return.
•July (£350) and June (£346) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 64% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seattle to Dallas/Fort Worth Airport the cheapest?

Flights from Seattle to Dallas/Fort Worth Airport are cheapest 4 weeks before departure. Booking in this window typically costs about 33% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Seattle to Dallas

 
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 SEA

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, 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.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Ramsey Qubein

Ramsey Qubein

Expert on DFW

An avid traveller and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg, among others, he explores the latest trends in aviation, hospitality, cruises and business.

Key details for Seattle to Dallas/Fort Worth Airport flights

Low season

August

Cheapest flight

£119
Beat the crowds with an average 35% drop in traveller numbers.
The most popular month to fly with an average 34% increase in traveller numbers.
One-way flight from Seattle to Dallas/Fort Worth Airport

When to book flights from Seattle to Dallas

Are your dates flexible? Find out the best times to travel from Seattle to Dallas based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Flights from Seattle to Dallas: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Seattle to Dallas 
Verified travelerFlew with Alaska Airlines-Oct 2024
Long train ride in Dallas to gates, but pretty easy to navigate, no real issues
DeeFlew with Alaska Airlines-Sept 2024
Arrive early as repairs and construction underway at Seatac.
kabirFlew with American Airlines-Aug 2024
Red eye flights can be a full flight. If possible, upgrade your seat. Stay away from sitting by flight attendant
Verified travelerFlew with Alaska Airlines-Jun 2024
If you like your feet warm, avoid wearing sandles. Cool air blew across my feet for almost four (4) hours.
Verified travelerFlew with Alaska Airlines-Jul 2024
Arrive early. Busy airport and rental car return is far from Airport
Verified travelerFlew with Alaska Airlines-Jun 2024
Bring snacks, water, and a change of clothes.
Verified travelerFlew with American Airlines-Mar 2024
The people mover in DFW is really fast. It can get you to your gate faster than you can run, for sure!

Your Seattle to Dallas/Fort Worth Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Seattle to Dallas/Fort Worth Airport?

    These are the earliest and latest flight times available from Seattle to Dallas/Fort Worth Airport:

    • Earliest: departs at 00:24 and lands at 04:24
    • Latest: departs at 23:59 and lands at 03:59.

    The flight takes about 4h.

  • How long is a flight from Seattle to Dallas/Fort Worth Airport?

    A direct flight from Seattle to Dallas/Fort Worth Airport takes 4h, covering 1,657 miles.

  • Do I need a passport to fly from Seattle to Dallas/Fort Worth Airport?

    No, a passport is not required for this domestic route, but you will need another form of identification, such as a driving licence.

  • How much should I expect to pay for a Seattle to Dallas/Fort Worth Airport flight?

    Return flights from Seattle to Dallas/Fort Worth Airport range from £218 to £366, with an average of £294 over the past 12 months. Anything below £218 counts as a good deal.

  • How expensive are last-minute Seattle to Dallas/Fort Worth Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 21% above the £294 route average. Book 4 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from Seattle to Dallas/Fort Worth Airport?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average £158 return via Phoenix Sky Harbor Intl (PHX), compared with £302 for direct.

  • How does on-time performance compare across airlines flying from Seattle to Dallas/Fort Worth Airport?

    Alaska Airlines is slightly above the route average for timely arrivals, while American Airlines has a lower on-time arrival rate. On-time arrival rates on Seattle to Dallas/Fort Worth Airport flights are:

    • Alaska Airlines: 89% on time
    • American Airlines: 86% on time
    • Frontier: 86% on time

    On average, flights on this route are punctual 87% of the time.

  • What is the standard checked bag allowance on flights from Seattle to Dallas/Fort Worth Airport?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £26–£75 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Seattle to Dallas/Fort Worth Airport?

    The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Southwest and Alaska Airlines. Other aircraft seen on the route include Airbus A321-100/200 variants.

  • How are flight departures from Seattle to Dallas/Fort Worth Airport spread across the day?

    Morning is the busiest departure period on Seattle to Dallas/Fort Worth Airport flights, with 43% leaving in that window. Afternoon departures account for 22%, Evening flights for 21%, and Night flights for 14%.

  • Have flight prices from Seattle to Dallas/Fort Worth Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £205 to £947. That means the highest observed fare was about 5x higher than the lowest one.

  • Which airlines offer Wi-Fi on Seattle to Dallas/Fort Worth Airport flights?

    Three airlines offer in-flight Wi-Fi on Seattle to Dallas/Fort Worth Airport flights:

    • Alaska Airlines
    • American Airlines
    • Delta

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty programme, while others are paid add-ons priced by flight length.

  • How are flight prices from Seattle to Dallas/Fort Worth Airport looking right now?

    One-way fares from Seattle to Dallas/Fort Worth Airport are currently lower than usual. Average one-way flight prices are about £132, which is 24% below the typical average for this route.

  • Which car hire options are available at Dallas/Fort Worth Airport (DFW)?

    Dallas/Fort Worth Airport (DFW) hosts 5 major car hire companies, with daily rates starting from around £43 for economy cars. Top options include:

    • Easirent
    • Europcar
    • Hertz
    • Ace
    • Thrifty

  • Which airports can I use when flying from Seattle to Dallas/Fort Worth Airport?

    Flights from Seattle to Dallas/Fort Worth Airport usually depart from Seattle/Tacoma Intl (SEA) and arrive at Dallas/Fort Worth (DFW).

  • What time of day has the fewest delays on flights from Seattle to Dallas/Fort Worth Airport?

    Morning flights have the fewest delays on this route, while afternoon departures tend to have the most.

  • At what point is a flight considered delayed on the route from Seattle to Dallas/Fort Worth Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Seattle to Dallas/Fort Worth Airport route, 13% of flights were delayed in the past three months, with delays averaging 2h 22m.

  • Which airports do connecting flights from Seattle to Dallas/Fort Worth Airport pass through?

    One-stop flights from Seattle to Dallas/Fort Worth Airport most commonly connect through:

    • Denver Intl (DEN) – 81% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) – 9% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) – 3% of one-stop connections
    • Houston George Bush Intcntl (IAH) – 2% of one-stop connections

  • Can I save money by using flexible dates for flights from Seattle to Dallas/Fort Worth Airport?

    Yes. Flexible dates can save you up to 18% on flights from Seattle to Dallas/Fort Worth Airport. Thursday is the cheapest departure day at £275 return on average, while Sunday is the most expensive at £334, a difference of £58.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from Seattle to Dallas/Fort Worth Airport?

    3 airlines operate flights between Seattle and Dallas/Fort Worth Airport. The airlines offering direct flights on this route include:

    • American Airlines
    • Alaska Airlines
    • Delta

  • How much time can I save by choosing a different stopover airport from Seattle to Dallas/Fort Worth Airport?

    Flying via Houston George Bush Intcntl (IAH) gives the shortest average 1-stop total travel time of 7h 21m, compared to 8h 52m via Denver Intl (DEN) and 10h 21m via Salt Lake City (SLC).

  • What is the time difference between Seattle and Dallas/Fort Worth Airport?

    Dallas/Fort Worth Airport is 2 hours ahead of Seattle (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Dallas/Fort Worth Airport?

    Some of the most popular sights in Dallas/Fort Worth Airport are Cotton Bowl, Dallas Zoo, and Klyde Warren Park. These are among the most viewed places in Dallas/Fort Worth Airport on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Seattle to Dallas/Fort Worth Airport flights?

    Among airlines operating Seattle to Dallas/Fort Worth Airport flights:

    • Alaska Airlines: offers extra legroom; offers free seat selection
    • American Airlines: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Seattle to Dallas/Fort Worth Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Alaska Airlines: a cabin bag and a checked bag in Economy class
    • American Airlines: a cabin bag and a checked bag in Economy class
    • Delta: a cabin bag and a checked bag in Economy class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

Your guide to booking Seattle to Dallas/Fort Worth Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Sunday. On this route, Thursday flights average £275, about £58 less than Sunday fares (18% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 4 weeks before you fly. On this route, that window historically saves about 33% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Dallas/Fort Worth Airport trip for January. Fares historically average £213 return in that month – typically £137 less than the most expensive month, which is July (based on the last 12 months).
  • For the best chance of arriving on time, fly with Alaska Airlines. Over the past three months, 89% of Alaska Airlines flights from Seattle to Dallas/Fort Worth Airport arrived on time, slightly above the route average of 87%. When flights on this route arrive late, they're delayed by an average of 2h 22m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Phoenix Sky Harbor Intl Airport (PHX) can be cheaper than flying direct. The cheapest stopover option averages £158 return on this route – about £144 less than direct flights (based on the last 12 months).

Prefer to fly direct from Seattle to Dallas?

 
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Dallas/Fort Worth Airport, which days they fly and book direct flights.

Direct departures

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 direct flights

Direct returns

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 direct flights

More options for your flight from Seattle to Dallas

Complete your trip to Dallas with a hotel stay or car hire