Cheap flights from Dallas/Fort Worth Airport to Seattle from $114

In general, April is the cheapest month to fly from Dallas/Fort Worth Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $252. If you don’t want to visit Seattle in April, then you should wait until January to fly from Dallas/Fort Worth Airport, when ticket prices are also cheap, with an average price of $267.

On average, the least expensive day to fly to Seattle from Dallas/Fort Worth Airport is on a Friday. momondo users have found tickets for Friday departures for as low as $337. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Dallas/Fort Worth Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $415.

Flying to Seattle from Dallas/Fort Worth Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $360 when looking at flights departing in the morning. Flights to Seattle are more costly in the evening, with an average ticket price of $394. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Dallas/Fort Worth to Seattle/Tacoma Intl for the best Dallas/Fort Worth - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Dallas/Fort Worth Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $293 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Dallas/Fort Worth Airport for as low as $267 on momondo.

There are 4 cabin classes available to choose from on Dallas/Fort Worth to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta is the most popular carrier operating from Dallas/Fort Worth to Seattle/Tacoma Intl

Alaska Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Seattle from Dallas/Fort Worth Airport according to our data. Alaska Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% of flights between Dallas and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 158 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Friday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

Denver (DEN) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $144.

Flights connecting via Las Vegas (LAS) have the shortest average one-way travel time: 9h 25m.

Las Vegas (LAS) has the shortest average layover time for this route: 2h 46m.

As of March 2026, 33 flights take off from Dallas/Fort Worth Airport and land in Seattle each day. The most common flight departure time for this route is 6:00AM, with 39% of daily flights taking off in the evening.

As of March 2026, there are 236 flights per week flying from Dallas/Fort Worth Airport to Seattle. The most common day of the week flights depart is Mon, with 20% of flights taking off on this day.