DFW - SEA

C$ 248 Find Cheap Flights from Dallas to Seattle – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 397
Typical prices: C$ 440-C$ 680
Frontier
Sat 10/11Sat 17/11
DFW - SEA • 1 stop
Cheapest direct flights
C$ 501
Typical prices: C$ 463-C$ 689
Alaska Airlines
Fri 2/11Fri 2/11
DFW - SEA • Direct
Direct flights
You can fly direct with American Airlines, Alaska Airlines, and Delta. Average duration is 4h 32m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 31% 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 layover airports
Cheapest • Avg C$ 364 (round-trip)
Shortest trip • 7h 38m (one-way)
Insights
Insights
Start a new search
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We hope you enjoy your trip to Seattle!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Dallas to Seattle (DFW-SEA)

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

Recent round-trip flight deals from Dallas to Seattle

Tue, 10 Nov - Tue, 17 Nov
Frontier Logo
8:19 p.m. - 3:12 p.m.DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
20h 53m1 stop Denver Intl
Frontier Logo
7:48 p.m. - 5:17 a.m.SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
7h 29m1 stop Los Angeles
C$ 397Frontier
16 hours ago
Wed, 11 Nov - Wed, 11 Nov
Alaska Airlines Logo
3:34 p.m. - 9:29 p.m.DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
7h 55m1 stop San Diego
Alaska Airlines Logo
12:25 a.m. - 6:19 a.m.SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
3h 54mdirect
C$ 423Alaska Airlines
3+ days ago
Wed, 11 Nov - Wed, 11 Nov
Alaska Airlines Logo
8:11 a.m. - 8:27 p.m.DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
14h 16m1 stop San Diego
Alaska Airlines Logo
12:25 a.m. - 6:19 a.m.SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
3h 54mdirect
C$ 432Alaska Airlines
1 day ago
Fri, 20 Nov - Mon, 23 Nov
Frontier Logo
10:54 p.m. - 12:37 p.m.DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
15h 43m1 stop Las Vegas Harry Reid Intl
Frontier Logo
4:37 p.m. - 9:30 a.m.SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
14h 53m1 stop Denver Intl
C$ 434Frontier
16 hours ago
Tue, 3 Nov - Tue, 3 Nov
Alaska Airlines Logo
3:34 p.m. - 9:29 p.m.DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
7h 55m1 stop San Diego
Alaska Airlines Logo
12:25 a.m. - 6:19 a.m.SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
3h 54mdirect
C$ 451Alaska Airlines
1 day ago
Tue, 3 Nov - Tue, 3 Nov
Alaska Airlines Logo
9:39 a.m. - 12:07 p.m.DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
4h 28mdirect
Alaska Airlines Logo
3:58 p.m. - 2:31 p.m.SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
20h 33m1 stop San Diego
C$ 459Alaska Airlines
1 day ago
Tue, 8 Dec - Tue, 8 Dec
Alaska Airlines Logo
6:00 a.m. - 8:41 a.m.DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
4h 41mdirect
Alaska Airlines Logo
12:18 p.m. - 10:59 p.m.SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
8h 41m1 stop San Diego
C$ 479Alaska Airlines
15 hours ago
Fri, 20 Nov - Mon, 23 Nov
Multiple Airlines Logo
10:54 p.m. - 12:37 p.m.DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
15h 43m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
6:02 p.m. - 11:59 p.m.SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
3h 57mdirect
C$ 494Multiple Airlines
16 hours ago
Mon, 2 Nov - Mon, 2 Nov
Alaska Airlines Logo
7:31 p.m. - 10:00 p.m.DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
4h 29mdirect
Alaska Airlines Logo
12:25 a.m. - 6:19 a.m.SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
3h 54mdirect
C$ 501Alaska Airlines
3+ days ago
Mon, 7 Dec - Tue, 15 Dec
Alaska Airlines Logo
3:37 p.m. - 6:15 p.m.DFW  Dallas/Fort Worth-SEA Seattle/Tacoma Intl
4h 38mdirect
Alaska Airlines Logo
6:02 p.m. - 11:59 p.m.SEA  Seattle/Tacoma Intl-DFW Dallas/Fort Worth
3h 57mdirect
C$ 508Alaska Airlines
2 hours ago
Booking Insights

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

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

How much is a round-trip flight from Dallas/Fort Worth Airport to Seattle?

Round-trip flights from Dallas/Fort Worth Airport to Seattle typically range from C$ 440 to C$ 680. The lowest price found in the past 5 days was C$ 397, on Frontier.

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Dallas/Fort Worth Airport to Seattle. It’s 3% cheaper than the average day, while Sunday is the most expensive, with prices 5% higher.

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

•January and February are the cheapest months to fly from Dallas/Fort Worth Airport to Seattle at C$ 402 round-trip.
•July (C$ 639) and June (C$ 632) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 59% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Dallas/Fort Worth Airport to Seattle are cheapest 5 weeks before departure. Booking in this window typically costs about 31% 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 Dallas to Seattle

 
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.

Key details for Dallas/Fort Worth Airport to Seattle flights

Low season

February

Cheapest flight

C$ 248
Beat the crowds with an average 48% drop in traveller numbers.
The most popular month to fly with an average 70% increase in traveller numbers.
One-way flight from Dallas/Fort Worth Airport to Seattle

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

Your Dallas/Fort Worth Airport to Seattle 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 Dallas/Fort Worth Airport to Seattle?

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

    • Earliest: departs at 6:00 am and lands at 10:32 am
    • Latest: departs at 10:31 pm and lands at 3:03 am.

    The flight takes about 4h 32m.

  • Which cabin classes can I book on flights from Dallas/Fort Worth Airport to Seattle?

    Only Economy Class is available on flights from Dallas/Fort Worth Airport to Seattle.

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

    A direct flight from Dallas/Fort Worth Airport to Seattle takes 4h 32m, covering 4,291 km.

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

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

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

    Round-trip flights from Dallas/Fort Worth Airport to Seattle range from C$ 440 to C$ 680, with an average of C$ 560 over the past 12 months. Anything below C$ 440 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 19% above the C$ 560 route average. Book 5 weeks before departure for the lowest fares.

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

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 364 round-trip via Los Angeles (LAX), compared to C$ 573 for direct.

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

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

    • Delta: 88% on time
    • Alaska Airlines: 87% on time
    • Frontier: 86% on time

    On average, flights on this route are punctual 82% of the time.

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

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 50–C$ 142 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 Dallas/Fort Worth Airport to Seattle?

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

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

    Morning is the busiest departure period on Dallas/Fort Worth Airport to Seattle flights, with 43% leaving in that window. Evening departures account for 28%, Afternoon flights for 22%, and Night flights for 7%.

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

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 397 to C$ 1,597. That means the highest observed fare was about 4x higher than the lowest one.

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

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

    • Alaska Airlines
    • American Airlines
    • Delta
    • JetBlue

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

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

    One-way fares from Dallas/Fort Worth Airport to Seattle are currently lower than usual. Average one-way flight prices are about C$ 276, which is 17% below the typical average for this route.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around C$ 5 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

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

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

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

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

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

    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 Dallas/Fort Worth Airport to Seattle route, 18% of flights were delayed in the past three months, with delays averaging 2h 25m.

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

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

    • Denver Intl (DEN) – 78% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) – 15% of one-stop connections
    • Ontario (ONT) – 2% 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 Dallas/Fort Worth Airport to Seattle?

    Yes. Flexible dates can save you up to 9% on flights from Dallas/Fort Worth Airport to Seattle. Wednesday is the cheapest departure day at C$ 544 round-trip on average, while Sunday is the most expensive at C$ 592, a difference of C$ 48.

    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 Dallas/Fort Worth Airport to Seattle?

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

    • American Airlines
    • Alaska Airlines
    • Delta

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

    Flying via Houston George Bush Intcntl (IAH) gives the shortest average 1-stop total travel time at 7h 38m, compared with 9h 24m via Denver Intl (DEN) and 11h 01m via Salt Lake City (SLC).

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

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

  • Which popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Lumen Field, T-Mobile Park, and Seattle Waterfront. These are among the most viewed places in Seattle on KAYAK.

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

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

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

    • Alaska Airlines: a carry-on bag and a checked bag in Economy Class
    • American Airlines: a carry-on bag and a checked bag in Economy Class
    • Delta: a carry-on 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 Dallas/Fort Worth Airport to Seattle 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 Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average C$ 544, about C$ 48 less than Sunday fares (8% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 5 weeks before you fly. On this route, that window historically saves about 31% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Dallas/Fort Worth Airport to Seattle trip for January. Fares historically average C$ 402 round-trip in that month – typically C$ 238 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 Delta. Over the past three months, 88% of Delta flights from Dallas/Fort Worth Airport to Seattle arrived on time, slightly above the route average of 82%. When flights on this route arrive late, they're delayed by an average of 2h 25m, 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 Los Angeles Airport (LAX) can be cheaper than flying direct. The cheapest layover option averages C$ 364 round-trip on this route – about C$ 209 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

Prefer to fly direct from Dallas to Seattle?

 
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

More options for your flight from Dallas to Seattle

Complete your trip to Seattle with a hotel stay or car rental