$135 Cheap Flights from Dallas (DFW) to Seattle (SEA)

Popular airlines from Dallas-Fort Worth Intl. Airport (DFW) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Dallas to Seattle (DFW-SEA)

Prices were available within the past 7 days and start at $135 for one-way flights and $270 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
American Airlines
Delta
United
Sun Country Airlines

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Find the cheapest month to fly from Dallas (DFW) to Seattle (SEA)

August is typically the cheapest month to fly

From $220 - $264 per traveler.

What you need to know for your flight from Dallas-Fort Worth Intl. to Seattle - Tacoma Intl.

Dallas (DFW) to Seattle (SEA) at a glance

Travel from Dallas (DFW) to Seattle (SEA) with a variety of airlines offering convenient options on this domestic short-haul route. Whether you prefer full-service or budget-friendly carriers, you can easily compare Seattle flights to find the best itinerary that aligns with your budget and schedule. Explore the iconic sights and neighborhoods of Seattle as you prepare for your next flight from Dallas-Fort Worth International Airport to Seattle-Tacoma International Airport.

  • Fastest flight duration: around 4h 30m non-stop
  • Route distance: roughly 1,700 miles (2,740 km)
  • Flights per week: around 85+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $80–$320, depending on seasonality and how far ahead you book

Flights from Dallas-Fort Worth International Airport (DFW) to Seattle - Tacoma International Airport (SEA)

According to the latest traveler bookings, here are the top airlines favored for flights from Dallas to Seattle, particularly for non-stop and one-stop journeys. Many travelers opt for layovers at Denver International Airport (DEN), which typically involves a one-hour stop, Salt Lake City International Airport (SLC) with a similar one-hour layover, and George Bush Intercontinental Airport (IAH), where the layover is around one hour and fifteen minutes. This variety allows you to customize your trip based on price, total travel time, and cabin class, helping you discover the ideal itinerary.

  • American Airlines: This full-service airline provides both non-stop and one-stop options, with one-way fares generally falling between $90 and $355. It represents around 45% of departures on this route, offering a typical non-stop flight duration of 4 hours and 30 minutes.
  • Alaska Airlines: Another full-service option, Alaska Airlines features non-stop and one-stop services, with one-way prices usually ranging from $90 to $340. It accounts for about 31% of departures on this route, typically taking 4 hours and 30 minutes for non-stop flights.
  • Delta: As a full-service carrier, Delta offers both non-stop and one-stop flight services, with one-way fares commonly between $80 and $380. It comprises around 16% of departures on this route, with a standard non-stop travel time of 4 hours and 30 minutes.
  • Frontier Airlines: This low-cost airline provides non-stop and one-stop services, with one-way fares typically priced from $80 to $230. Frontier accounts for approximately 4% of departures on this route, maintaining a usual non-stop journey time of 4 hours and 30 minutes.
  • United: Offering one-stop service, United Airlines features one-way fares that generally range from $110 to $380. It represents about 3% of departures on this route, with an in-flight duration of 5 hours and 30 minutes, totaling around 7 hours and 15 minutes including a layover.

Passengers flying from Dallas to Seattle have the option to enhance their experience by upgrading their flight. Delta provides first class and premium economy service, while Alaska Airlines features first class and business class. American Airlines also offers a first class cabin.

Best time to fly from Dallas (DFW) to Seattle (SEA)

The most popular months for travelers flying from Dallas to Seattle are March, April, and July, when peak temperatures in Seattle reach up to 67.1°F in July. If you prefer quieter travel, consider September, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 61.3°F. For better deals, February usually offers the lowest average one-way fare around $170. Flight availability peaks in June, with approximately 114 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 73 flights per week.

  • Cheapest time to fly: February usually offers good deals with average one-way fare around $170, roughly 10% cheaper than the yearly average.
  • More budget-friendly months to fly: October, September, and January typically offer average one-way fares of around $180.
  • Most flight options: June has the highest number of flights from Dallas to Seattle, with approximately 114 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January40.3°F (4.6°C)Average76$183
February40.5°F (4.7°C)Average73$170
March43.9°F (6.6°C)Slightly High84$191
April48.6°F (9.2°C)Slightly High82$192
May55.8°F (13.2°C)Average110$205
June61.0°F (16.1°C)Average114$195
July67.1°F (19.5°C)Slightly High111$202
August67.5°F (19.7°C)Average100$188
September61.3°F (16.3°C)Slightly Low86$177
October52.7°F (11.5°C)Slightly Low91$177
November44.2°F (6.8°C)Slightly Low88$184
December39.2°F (4.0°C)Average96$202

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Dallas (DFW) to Seattle (SEA)

  • Dallas to Seattle (DAL-SEA): Love Field Airport (DAL) is located approximately 12 miles from Dallas-Fort Worth International Airport (DFW). One-way economy ticket prices for this route generally vary between $75 and $325, influenced by the travel season and how far in advance you book. Passengers can choose from non-stop or one-stop flights. Major airlines operating this route include Southwest Airlines, known for its budget-friendly options, and Alaska Airlines. Additionally, there are business and first-class service choices available for travelers.

How to find the best prices for flights from Dallas (DFW) to Seattle (SEA)

Getting some of the best deals on flights from Dallas to Seattle is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which is when most travelers make their reservations. Morning departures, from 5 a.m. to 12 p.m., often offer lower prices and are also the most popular. Additionally, flying on Monday tends to be cheaper, while Friday remains the most favored travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Seattle - Tacoma International Airport from Dallas-Fort Worth International Airport

Seattle welcomes travelers from Dallas with a range of transport options based on price, convenience, and proximity. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles from the airport and can be reached on foot, while Tukwila Station, a train station, is approximately 4.3 miles away and is best accessed by car.

Frequently asked questions

How much does a flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $135 and cheap return flights from $270 Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights usually range from $161 to $1050, and return flights typically cost between $239 and $1598. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
February is the cheapest month to fly from Dallas, TX (DFW) to Seattle, WA (SEA), with average return fares around $269. This is about 19% lower than the average price throughout the year, as February typically experiences lower travel demand after the holiday season. Other affordable months to fly from Dallas to Seattle include January and April.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
4 airlines operate nonstop service from DFW to SEA:

  • American Airlines operates around 62 direct flights from DFW to SEA every week
  • Delta operates around 14 direct flights from DFW to SEA every week
  • Qatar Airways operates around 22 direct flights from DFW to SEA every week
  • Hawaiian Airlines operates around 8 direct flights from DFW to SEA every week

How do I find cheap flights from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Dallas, TX (DFW) to Seattle, WA (SEA) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. American Airlines offers the most daily flights from DFW to SEA, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
For flights from Dallas (DFW) to Seattle (SEA), January and February are the best months to travel, with average return flight prices around $269. These months often see lower demand, which can lead to better fares and a more enjoyable travel experience.*Prices based on flights available on Expedia in the last year.
How many flights per day from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 11 nonstop flights per day from Dallas-Fort Worth Intl. (DFW) to Seattle - Tacoma Intl. (SEA). For more options, look at flights that include layovers.
What is the earliest flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically leaves at around 5:00 AM. This seasonal service is available in April, allowing you to start your day early in the Pacific Northwest. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Dallas (DFW) to Seattle (SEA) are in the early morning, from 6am to 9am. About 29% of passengers prefer this time window. Many major carriers, including American Airlines and United Airlines, offer flights during this window. This timing works well because it allows you to arrive in Seattle with a full day ahead of you.
How long does it take to fly from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying nonstop from DFW to SEA takes around 4 hours 30 minutes, with the route covering approximately 1,657 miles. Flights with a layover typically take 5 hours longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Business class seats are offered on the DFW to SEA route with American Airlines.First class cabins are available on:

  • United Airlines
  • American Airlines
  • Delta Air Lines

How much is a business class flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A direct, return business class ticket from Dallas (DFW) to Seattle (SEA) typically costs between $1,147 - $1,632. A non-stop, one-way business class flight is usually around $568 - $788. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Dallas-Fort Worth Intl. (DFW)?
From Dallas-Fort Worth Intl. (DFW), you can fly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like San Diego Intl. (SAN), Los Angeles Intl. (LAX), Denver Intl. (DEN) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Dallas-Fort Worth Intl.
Destination airport
Seattle - Tacoma Intl.
Roundtrip price
$270
Distance
1657 mi
Average flight time
2 hours 20 mins

Book with confidence

*Flight schedules are subject to change.

*Available to One Key members.