$44 Cheap Flights to St. Louis, MO

Plan your trip for January if you want to land a good price on your fare. It's the cheapest month to fly to St. Louis. Try to avoid traveling during busy periods such as major public holidays or events.

Chicago, Dallas and Denver usually have cheap flights to St. Louis. Keep in mind that fares may vary based on factors like demand, number of stopovers and time of year.

There are 55 US destinations where you can fly to St. Louis nonstop from. Explore your options by selecting the "Direct flights only" box on Expedia and choose the ideal departure point for your trip. Here are a few of the top cities to jet off from:

• Chicago
• Dallas
• Denver
• New York
• Atlanta

To lock in cheap flights to St. Louis, book well in advance or visit during the off-season months of December and January. Want another helpful tip? Jet off on a Thursday and save around 16% on average compared to those who travel on a Sunday.* Opt to receive price alerts on the Expedia app and you'll get notified as soon as your fares go down.

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

It's possible to get cheap deals on last-minute departures to St. Louis, especially if your travel arrangements aren't set in stone. Consider departing from a different hub, changing your trip dates or picking another airline to get a cheap flight to St. Louis.

Secure your flight to St. Louis two to four months ahead if you're coming in from an international destination. For domestic travel, the usual timeframe is 28 days in advance. Bigger savings and a wider variety of travel dates, schedules and seating options are just a few of the benefits of booking early.*

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Sundays are usually the best day to book a cheap flight to St. Louis, where you can save 8% on average compared to Fridays. If you decide to buy tickets on a Friday, expect to pay a higher price as this is typically the most expensive day.*

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

A total of 10 airlines connect 33 airports around the world to St. Louis. Here are some of the major airlines to St. Louis, where Lambert-St. Louis Intl. Airport (STL) is the chief entry point:

• Delta Air Lines
• American Airlines
• United Airlines
• Southern Airways Express

The main airport to fly to St. Louis is Lambert-St. Louis Intl. Airport (STL). You also have the option to land at St. Louis Downtown Airport (CPS) when flying to St. Louis.

Touching down at Lambert-St. Louis Intl. Airport (STL) puts you around 12 mi northwest of central St. Louis.

You could potentially save hundreds of dollars if you lock in a St. Louis flight and hotel package deal on Expedia. And you'll save time and hassle by having all your travel plans in one place. Try bundling your hotel and flight with extras like activities and tours for your own customized St. Louis vacation.

It's often possible to change or cancel your flight to St. Louis. Many airlines let you cancel your flights for free within 24 hours of booking. However, some flights are non-refundable, and airlines may offer you credit for future travel rather than a direct refund. To get cheap flights to St. Louis with flexible change policies, pick "Changes included" or "No cancel fee" when you search. Want more information? Check out our Customer Service Portal.