Important: This destination may have COVID-19 travel restrictions in place, including specific restrictions for lodging. Check any national, local, and health advisories for this destination before you book.

Flights from Seattle - Tacoma Intl. (SEA) to Lambert-St. Louis Intl. (STL) starting at $76

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Amazing SEA to STL Flight Deals

The cheapest flights to Lambert-St. Louis Intl. found within the past 7 days were $151 round trip and $76 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for SEA to STL

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Best Lambert-St. Louis Intl. Flight and Hotel Packages

Lambert-St. Louis Intl. flight + hotel packages - economy flights

The Ritz-Carlton, St. Louis
River City Casino & Hotel
Best Western Plus The Charles Hotel
The Charles F. Knight Center
DoubleTree by Hilton Hotel St. Louis Westport
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FAQs about flights from Seattle - Tacoma Intl. Airport (SEA) to Lambert-St. Louis Intl. Airport (STL)

Can I catch a flight from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) to St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) right now?

Make sure you go to the Covid-19 Travel Advisor to discover if there are any present quarantine requirements and travel advice reports in effect in St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) when jet-setting from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.).

Are there direct flights from Sea-Tac Airport to STL?

For the shortest trip between Seattle and St. Louis, try Alaska Airlines. They have direct flights from SEA to Lambert-St. Louis Intl. Airport (STL).

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Lambert Field, please visit our Customer Service Portal.

How long is the flight from SEA to STL?

Leave the airplane feeling rested and relaxed by having a nap and a few snacks during your flight to Lambert-St. Louis Intl. Airport (STL). With an usual travel time of 5 hours and 53 minutes from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.), you'll have plenty of time to enjoy both.

What is the flight distance from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) to Lambert-St. Louis Intl. Airport (STL)?

With a flight distance of 2,423 mi separating Seattle - Tacoma Intl. Airport (SEA) and St. Louis, MO Airport (STL-Lambert-St. Louis Intl.), you'll be up in the air for a decent amount of time. It's a great chance to watch a film or two, catch up on some work or just chill out with a novel.

What airlines fly from Sea-Tac Airport to St. Louis Lambert International Airport?

Eager to fly straight from Seattle - Tacoma Intl. Airport (SEA) to Lambert-St. Louis Intl. Airport (STL)? It's your lucky day. Alaska Airlines offers up to 95 flights per month and is the preferred choice for many well-traveled wanderers.

What airlines have practices regarding COVID-19 in place and use social distancing?

From the moment you enter the departure terminal to when you leave the arrivals terminal, if you're flying with Southwest Airlines, American Airlines or Delta you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2020, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2020. Savings are subject to change based on departure location, date and destination.

Seattle - Tacoma Intl. to Lambert-St. Louis Intl. Flight FAQ

Traveling From Seattle - Tacoma Intl.
Traveling To Lambert-St. Louis Intl.
Shortest Flight Time 7 hours 52 mins
Earliest Departure Time 8:22AM CDT
Latest Departure Time 6:04PM CDT
Lowest Flight Price $151

Route Info

Flight path for flights from Seattle-Tacoma International Airport to Lambert-St. Louis International Airport

Distance:
1,714.00 miles

Airlines & Aircraft Used on SEA to STL Flight Routes

Airline Carrier
Aircraft
Alaska Airlines
Airbus A320-100/200
Alaska Airlines
Boeing 737 all pax models
Alaska Airlines
De Havilland Canada DHC-8-300 Dash 8 / 8Q
American Airlines
Avro RJ100 Avroliner
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.