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Dallas Fort Worth International Airport to Seattle-Tacoma International Airport flight

Explore the cheapest one-way and round-trip flights from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from US$92 and round-trip from US$147. Based on Trip.com's latest 7-day flight data.

Displayed flight fares from Dallas to Seattle are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights: Flights from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport

What is the cheapest month to fly from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport are usually in March, with an average price of US$173. It is best to avoid July, when the average price can reach US$284.

US$284
US$229
US$173
US$118
    Cheapest
  • US$186
    Nov
  • US$243
    Dec
  • US$186
    Jan
  • US$213
    Feb
  • US$173
    Mar
  • US$192
    Apr
  • US$236
    May
  • US$275
    Jun
  • US$284
    Jul
  • US$258
    Aug
  • US$241
    Sep
  • US$272
    Oct

What is the cheapest month to fly return from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average monthly return fares from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport in the Trip.com database.

Based on Trip.com's data from the past 12 months, November is often the month to find the lowest fares from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport, with an average price of US$255. October is usually the most expensive month, with an average price reaching US$508.

US$508
US$382
US$255
US$129
  • US$255
    Nov
  • US$382
    Dec
  • US$492
    Jan
  • US$452
    Feb
  • US$410
    Mar
  • US$284
    Apr
  • US$447
    May
  • US$476
    Jun
  • US$396
    Jul
  • US$400
    Aug
  • US$355
    Sep
  • US$508
    Oct

What is the cheapest day of the week to fly from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average ticket prices from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport for each day of the week in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest departure day from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport is Tuesday, with average prices usually lower than other days. Avoid departing on Thursday as prices are typically highest on that day.

US$266
US$231
US$195
US$160
  • US$224
    Mon
  • US$195
    Tue
  • US$219
    Wed
  • US$266
    Thu
  • US$260
    Fri
  • US$246
    Sat
  • US$258
    Sun

Which airline offers the cheapest flights from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport?

The cheapest airline flying from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport is Frontier Airlines (from US$80) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From US$80
Alaska Airlines
From US$112
Delta Air Lines
From US$112
American Airlines
From US$118
United Airlines
From US$169
Sun Country Airlines
From US$240

Find more flights and airlines

What is the flight schedule from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport?

Check the schedule for flights from Dallas to Seattle and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule
  1. AS321

    15:43

    DFW

    4h 29m

    18:12

    SEA

    S M T W T F S
    Search
  2. AS322

    18:08

    DFW

    4h 29m

    20:37

    SEA

    S M T W T F S
    Search
  3. AS543

    06:02

    DFW

    4h 28m

    08:30

    SEA

    S M T W T F S
    Search
  4. F91323

    11:23

    DFW

    2h 12m

    Direct

    12:35

    DEN

    S - - W T F S
    Search
  5. F91175

    13:07

    DEN

    3h 5m

    Direct

    15:12

    SEA

    S - T - T F -
  6. F93885

    22:49

    DFW

    2h 59m

    Direct

    23:48

    LAS

    S M T W T F S
    Search
  7. F92407

    06:50

    LAS

    2h 55m

    Direct

    09:45

    SEA

    S - - W T - S
  8. F91051

    12:00

    DFW

    3h 12m

    Direct

    13:12

    LAS

    S M T W T F S
    Search
  9. F92407

    06:50

    LAS

    2h 55m

    Direct

    09:45

    SEA

    S - - W T - S
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About Dallas Fort Worth International Airport and Seattle-Tacoma International Airport

Learn about Dallas Fort Worth International Airport (DFW) and Seattle-Tacoma International Airport (SEA) — including location, terminals, transportation, and travel tips.

Flight distance 2,670.47km
Cheapest one-way ticket price US$92
Cheapest return ticket price US$147

FAQs for Dallas Fort Worth International Airport to Seattle-Tacoma International Airport Flights

  • How long is the flight from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport?

    Dallas Fort Worth International Airport to Seattle-Tacoma International Airport takes about 3 hours 49 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 11 daily flights from Dallas Fort Worth International Airport (DFW) to Seattle-Tacoma International Airport (SEA).
  • The earliest flight from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport departs at 06:03, and the last departs at 22:26, with about 18 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Dallas Fort Worth International Airport (DFW) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around US$331 in November, the most expensive month to book this route.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
  • American Airlines is a very popular airline operating an average of 9213 flights per month.
  • One-way flights from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport currently start from US$92, and round-trip fares start from US$147. The current lowest fare is a Frontier Airlines flight departing on Sun, Dec 6; prices may vary depending on availability.
  • Yes. American Airlines, Alaska Airlines, Delta Air Lines, Finnair and United Airlines operate direct flights from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport, with an average flight time of 3 hours 46 minutes, and around 106 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport is US$245. Prices may vary depending on the departure date, airline, and availability.
  • Gol Linhas Aereas Inteligentes and Condor are the most popular budget airlines flying from Dallas Fort Worth International Airport to Seattle-Tacoma International Airport, with one-way fares starting from US$92. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Dallas Fort Worth International Airport to Seattle-Tacoma International Airport operates around 104 weekly flights, mainly by American Airlines, Alaska Airlines and Delta Air Lines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Dallas Fort Worth International Airport and Seattle-Tacoma International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Note: Prices shown on this page are the estimated lowest prices and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please visit the customer support pages.