Cheap flights from Atlanta to Seattle from $171

In general, February is the cheapest month to fly from Atlanta to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $289. If you don’t want to visit Seattle in February, then you should wait until January to fly from Atlanta, when ticket prices are also cheap, with an average price of $314.

On average, the least expensive day to fly to Seattle from Atlanta is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $522. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Atlanta because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $714.

Flying to Seattle from Atlanta at noon is the least expensive time of day to depart. momondo users have found prices as low as $504 when looking at flights departing at noon. Flights to Seattle are more costly in the afternoon, with an average ticket price of $788. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Atlanta Hartsfield-Jackson to Seattle/Tacoma Intl for the best Atlanta Hartsfield-Jackson - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $401 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Atlanta for as low as $359 on momondo.

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

You could potentially save up to 23% on your flight if you consider stops on a Atlanta to Seattle flight.

As of September 2026, prices for Atlanta to Seattle flights are approximately 43% cheaper when compared to flights at the same time last year.

Southwest, Sun Country Air, and Alaska Airlines are the most popular carriers operating from Atlanta Hartsfield-Jackson to Seattle/Tacoma Intl

Alaska Airlines, Delta and Frontier are the top three most popular airlines that fly to Seattle from Atlanta according to our data. Alaska Airlines is the first choice among our users, with 45% 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 14% of flights between Atlanta and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 155 minutes.

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

Saturday 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 14% of their flights experiencing any sort of delay.

Denver (DEN) was the most common stop: 62% 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 $273.

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 10h 43m.

Denver (DEN) has the shortest average layover time for this route: 5h 07m.

The number of flights available between Atlanta and Seattle is 17 per day as of September 2026. The most frequent departure time is 4:00PM, with 39% of daily flights leaving in the afternoon.

The number of flights available between Atlanta and Seattle is 123 per week as of September 2026. The most frequent departure day is Thu, with 26% of weekly flights leaving on this day.