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How much is the cheapest flight to St. Louis?
Prices were available within the past 7 days and starts at CA $207 for one-way flights and CA $354 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Find Your Flights to St. Louis STL
Cheap flights to St. Louis (STL)
Get started finding a cheap flight to St. Louis on Expedia by either choosing a deal on this page or using the search bar to enter your travel dates, origin airport, and whether you want a roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.
We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to St. Louis.
Roundtrip prices range from CA $354 - CA $359, and one-ways St. Louis start as low as CA $207.
Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.
Airlines that fly to St. Louis (STL)
You have several options for which airline you choose to travel with to St. Louis. There are 10 airlines flying into STL: United, American Airlines, Delta, Alaska Airlines.
Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.
For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare.
Additionally, your preferred frequent flyer membership programmes may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel on one online platform.
Find the best deals
At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at optimal times. Airfare to St. Louis (STL) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to STL in May and in June for one-ways.
Cancellation & flexibility
To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24 hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.
More to explore for St. Louis
Heading to St. Louis? Explore St. Louis with Expedia's Travel Guides to find the best hotels, city breaks, car hire deals and more!
Trending flights to St. Louis
Prices were available within the past 7 days and starts at CA $207 for one-way flights and CA $354 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
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