Cheap flights from Illinois to St. Louis (STL) from $59

If you book a flight to St. Louis from Illinois, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

Yes, there are multiple flights from Illinois to St. Louis for under $200. The cheapest flight booked recently is on American Airlines for just $108, but on average you can expect to pay $130.

Cheapflights has at least 20 direct flights from Illinois to St. Louis under $200. A good price for a nonstop flight from Illinois to St. Louis is less than $193.

There are currently 20+ open flights from Illinois to St. Louis within the next 7 days for less than $200.

Nonstop flights are available for this route on the following days: Sunday, Thursday, Friday, Saturday.

14 flight departures from Illinois to St. Louis per day on average.
Morning (6am - Noon) - 43% of flight departures
Afternoon (Noon - 6pm) - 57% of flight departures

Airlines like American Airlines, Southern / Mokulele, and Delta fly from Illinois to St. Louis in about 1h 13m. The time it takes to get you to your destination can typically vary by up to 7h 17m. There are 259 mi between Illinois and St. Louis. Both multi-stop and nonstop flights can be found to your destination and back.

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $59. However, be on the lookout for offers from Southern / Mokulele and Delta, as they are both options that can get you from Illinois to St. Louis for a low price.

When deciding which route to take from Illinois to St. Louis consider Chicago O'Hare Intl - Lambert-St Louis, Chicago Midway - Lambert-St Louis or Springfield Capital - Lambert-St Louis as they are the most popular.

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to St. Louis on time: Sun Country Air (100%), Air New Zealand (85%), Air Canada (85%).

Looking at all options, your cheapest flight can be booked for $58. While the most popular route (Chicago O'Hare Intl - Lambert-St Louis) can be booked for $117 on average our data indicates $255 when flying from Illinois to St. Louis.

This is defined as Chicago O'Hare Intl Airport (ORD) and Lambert-St Louis Airport (STL). Codes like Lambert-St Louis Airport are often used to just call airports uniquely. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI).

The amount of baggage you can bring on your Illinois to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Yes, Cheapflights allows you to browse and filter Illinois to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Yes. In addition to deals on Illinois to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to St. Louis.

Yes. Cheapflights offers flight deals from Illinois to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Many airlines flying from Illinois to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Yes, you can often find last-minute deals on Illinois to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

The Illinois to St. Louis flight deals you see on this page were last updated on 6/4.

The most popular airlines flying from Illinois to St. Louis are Southern / Mokulele, American Airlines and United Airlines. Something to consider prior to booking your flight.

Currently, September is the cheapest month in which you can book a flight from Illinois to St. Louis (average of $318). Flying from Illinois to St. Louis in July is currently the most expensive (average of $365). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.