Cheap Flights to St. Louis

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Popular airlines to St. Louis

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Frequently asked questions

What month is the cheapest to fly to St. Louis?
The cheapest month to fly to St. Louis is when demand is low. Off-peak months are typically when you'll find cheap flights. To keep costs down, steer clear of flying during public and school holidays.
Which US cities fly direct to St. Louis?
The only city in the US where you're able to fly to St. Louis without a layover is New York. Browse all the available departure dates and times to St. Louis by choosing "Direct flights only" when you start your search.
How to find a cheap flight to St. Louis?
Book in advance to snag cheap flights to St. Louis. Also, consider visiting during off-season months like February and April. If you fly on a Thursday, you can save an average of 16% compared to departing on a Sunday.* Save time checking every day and create a price alert on the Expedia app. We'll let you know when fares change.*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.
How to get a cheap last-minute flight to St. Louis?
You can find great deals on last-minute flights to St. Louis, especially if your travel arrangements are flexible. Consider your options for leaving from a different airport, tweaking your trip dates or choosing another airline to get a cheap flight to St. Louis.
How far in advance should I book a flight to St. Louis?
Book your flight to St. Louis two to four months ahead if you're taking off from an international destination. For domestic travel, the general guideline is 28 days in advance. Lower fares and a wider variety of departure dates, schedules and seating options are just some of the perks 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.
Which day of the week is the cheapest day to buy a plane ticket to St. Louis?
You can save an average of 8% if you buy plane tickets on a Sunday rather than Fridays, which tend to be the priciest day to book.* When it comes to snapping up a cheap flight to St. Louis, it's all about having good timing.*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.
Which airlines fly to St. Louis?
You can pick from two quality airlines with flights to St. Louis. Pack your belongings and book a seat with either of these:

  • Delta Air Lines - 13 flights to St. Louis each month, including 13 flights to Blaise Diagne Intl. Airport (DSS) per month.
  • Air Senegal - 8 flights to St. Louis each month, including 8 flights to Blaise Diagne Intl. Airport (DSS) per month.

Where do you fly into St. Louis?
The main airport to fly to St. Louis is St. Louis (XLS). You also have the option to touch down at Richard-Toll (RDT) when flying to St. Louis.
How far is the airport from central St. Louis?
You'll be about 2 mi northeast of the center of St. Louis after touching down at St. Louis (XLS).
Can I save money by booking a St. Louis trip package?
It's possible to save hundreds of dollars if you lock in a St. Louis flight and hotel package deal on Expedia. And you'll save yourself hassle by having all your travel arrangements in the same place. Try bundling hotels and flights with extras like activities and tours for your own customized St. Louis vacation.
Can I change or cancel my flight to St. Louis?
You can often cancel or change your flight to St. Louis within 24 hours of booking. However, keep in mind that some fares are non-refundable. In those cases, you may be issued credit for future travel instead of a direct refund. Make sure you check the airline's terms of service in your itinerary for specific details. You can use Expedia's "Changes included" or "No cancel fee" filters during your search to find cheap flights to St. Louis with flexible change policies. To learn more, head to our Customer Service Portal.

*Flight schedules are subject to change.

*Available to One Key members.

 

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Tips to find the cheapest flights to St. Louis

The cheapest day to fly

Get started finding a cheap flight to St. Louis on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want 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.

The cheapest month to fly

is the cheapest month to fly to St. Louis. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to St. Louis. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to St. Louis, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to St. Louis

The lowest price for round-trip flights to St. Louis in 2026 starts from , while one-way tickets start from . Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to St. Louis. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to St. Louis

are just some of the airlines that can typically offer cheap tickets to St. Louis. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to St. Louis and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for St. Louis, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to St. Louis. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your St. Louis plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to St. Louis

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to St. Louis.

Stopover savings

The cheapest tickets to St. Louis are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to St. Louis. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to St. Louis for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to St. Louis. Simply download the free Expedia app to your smart device and activate St. Louis flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to St. Louis. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Tips to find the cheapest flights to St. Louis

Travel information

Destination airport
Istanbul
Destination airport IATA code
IST
Destination city name
Istanbul
Roundtrip price
$181

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