$122 Cheap Flights from Seattle (SEA) to Dallas (DFW)

You can find cheap one-way flights from $122 and cheap return flights $244 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Dallas, TX (DFW-Dallas-Fort Worth Intl.) with Expedia. One-way flights usually range from $149 to $1273, and return flights typically cost between $211 and $1957. 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Dallas, TX (DFW-Dallas-Fort Worth 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.

January is the cheapest month to fly from Seattle (SEA) to Dallas (DFW), with average round-trip fares around $279. This price is about 16% lower than the average throughout the year, as travel demand is generally lower during the winter months. Other economical months to consider are February and March.

*Averages based on flights available on Expedia in the last year.

Choose from 4 airlines operating direct flights from SEA to DFW:

• American Airlines operates around 63 direct flights from SEA to DFW every week
• Delta operates around 14 direct flights from SEA to DFW every week
• Hawaiian Airlines operates around 21 direct flights from SEA to DFW every week
• Qatar Airways operates around 14 direct flights from SEA to DFW every week

Sun Country Airlines is one of the cheapest airlines offering nonstop flights from Seattle - Tacoma Intl. (SEA) to Dallas-Fort Worth Intl. (DFW), with round-trip tickets starting from around $451. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

*Prices based on flights available on Expedia in the last year.

To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Dallas, TX (DFW-Dallas-Fort Worth 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.

The best airline to fly with from Seattle, WA (SEA) to Dallas, TX (DFW) will differ from traveler to traveler. If you like to fly early, Delta offers early morning flights. If price is the most important factor, Sun Country Airlines typically offers the lowest fares. Alaska Airlines offers the most daily flights from Seattle to Dallas, 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.

When flying from Seattle, WA (SEA) to Dallas, TX (DFW), January and February are the best months to consider. You can expect to pay around $279 for a return flight during these months. This is a great time to travel as it typically offers lower prices and less crowded flights.

*Prices based on flights available on Expedia in the last year.

There are approximately 11 nonstop flights per day from Seattle - Tacoma Intl. (SEA) to Dallas-Fort Worth Intl. (DFW). For more options, look at flights that include layovers.

The earliest flight from Seattle, WA (SEA) to Dallas, TX (DFW) typically departs at around 12:05 AM local time, operated by American Airlines. This seasonal service is active in February, allowing you to start your journey early and make the most of your time in Dallas. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

The most popular departure times for flights from Seattle (SEA) to Dallas (DFW) are in the early morning, from 6am to 9am. About 24% of passengers prefer this time window. Many major carriers, including United Airlines, Southwest Airlines and American Airlines, offer flights during this window. This timing works well because it allows you to arrive in Dallas with plenty of time to start your day.

A nonstop flight from SEA to DFW typically takes around 4 hours, covering approximately 1,657 miles. Connecting flights on this route usually add 5 hours 30 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

Business class seats are offered on the SEA to DFW route with American Airlines.

First class cabins are available on:

• Delta Air Lines
• United Airlines
• American Airlines

A direct, return business class ticket from Seattle, WA (SEA) to Dallas, TX (DFW) typically costs between $1,245 - $1,704. A non-stop, one-way business class flight is usually around $612 - $829. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Seattle, WA (SEA-Seattle - Tacoma Intl.) to Dallas, TX (DFW-Dallas-Fort Worth Intl.) if you opt for a connecting flight.

*Prices based on flights available on Expedia in the last year.

It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Dallas, TX (DFW-Dallas-Fort Worth 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.

From Seattle - Tacoma Intl. (SEA), you can fly into Love Field (DAL) and Dallas-Fort Worth Intl. (DFW) in Dallas. Some flights may connect through major hubs like Denver Intl. (DEN), Harry Reid Intl. (LAS), Sacramento Intl. (SMF) before reaching Dallas. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Dallas, TX (DFW-Dallas-Fort Worth 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.

Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Dallas, TX (DFW-Dallas-Fort Worth Intl.) Dallas 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.

If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Dallas, TX (DFW-Dallas-Fort Worth 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.