Flights to St Louis Airport (STL)

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Flight deals to St Louis

Looking for a cheap last-minute deal or the best round-trip flight to St Louis? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest time to fly to St Louis

Flexible on travel dates? Find the cheapest month – or even day – to fly to St Louis.

Airports near St Louis

Looking for an alternative route to St Louis? Find the cheapest or fastest by comparing these airport options.

Direct flights to St Louis

Frequently asked questions

The average flight time to St Louis is 2 hours and 20 minutes. We've calculated this based on journeys from Washington, D.C..
Southwest Airlines, American Airlines, WestJet, Delta, Alaska Airlines, United, Qatar Airways and Envoy Air all fly non-stop to St Louis.
The cheapest month to fly to St Louis is usually May.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
Yes – the average flight time is 2 hours and 13 minutes.
The best price we found for a round-trip flight to St Louis is $53. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
After crunching the numbers on our flight calendar, we found that the cheapest date to fly to St Louis Airport is Saturday, May 18, 2024.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to St Louis.

Flying to St Louis

The things to know before you go.
Cheapest flight found$53
Cheapest month to flyMay
Average flight time2 hrs, 14 mins
Most popular airlineSouthwest Airlines
Average flights per week3,592

Discover St Louis

How to find cheap flights to Lambert-St. Louis International Airport

Finding cheap flights to Lambert-St. Louis International Airport is simple with Skyscanner. Fare prices often change depending on your travel dates, seat availability, and booking time. We've compared airfares from all top online travel agents and airlines flying to Lambert-St. Louis to get you the cheapest flights. With Skyscanner, there are no hidden fees – the price you see is the price you pay.

Best time to visit Saint Louis

The best time to visit Saint Louis is from June to August when the city is all warmed up and buzzing, with temperatures hitting the 80s and 90s. But if you're into smaller crowds or are looking to save some money, consider visiting from December to February. It's chillier around this time, with temperatures often dipping into the 30s and 20s, and there's a good chance you'll see some snow.

Best time to book flights to Lambert-St. Louis International Airport

Looking for cheap flights to Lambert-St. Louis International Airport from within the US? We recommend booking your flight about 45-60 days in advance – this is typically the sweet spot for getting the best flight deals. Remember to use Skyscanner's Price Alert feature for added convenience. Once you've set it up, we'll monitor prices and let you know of any changes so you can make the most of your travel budget.

Top things to see and do in Saint Louis

Saint Louis offers a blend of high-rises and lush parks. The Gateway Arch gives a panoramic view of the city, while Forest Park is a popular choice for strolls. Venture to The Loop for unique stores and crafts, or wander around Soulard to taste the local food scene. If architecture interests you, the structures in Central West End are noteworthy. After discovering the Saint Louis Art Museum and Missouri Botanical Garden, unwind at a local brewery, and enjoy a craft beer.


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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.