Cheap Flights from Chicago (CHI) to St. Louis (STL)

Popular airlines from Chicago to St. Louis, MO (STL-Lambert-St. Louis Intl.)

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Find the cheapest month to fly from Chicago (CHI) to St. Louis (STL)

August is typically the cheapest month to fly

From ₹6,780 - ₹25,895 per traveller.

Frequently asked questions

How much is a flight from Chicago, IL (CHI-All Airports) to St. Louis Lambert International Airport?
Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between Chicago, IL (CHI-All Airports) and Lambert Field start from . Book today to get the best price for your journey. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Chicago, IL (CHI-All Airports) to Lambert Field?
Most flights can be cancelled online, but whether you are charged a fee depends on your airline. If you do need to cancel your holiday, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Chicago, IL (CHI-All Airports) to Lambert-St. Louis Intl. Airport (STL) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Chicago, IL (CHI-All Airports) to STL flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Chicago, IL (CHI-All Airports) to Lambert-St. Louis Intl. Airport (STL)?
Forget about a movie marathon on this flight — it's only 400 kilometres from Illinois to St. Louis. Sit down, buckle up and you'll be in St. Louis in next to no time.
Which airlines fly direct from Chicago, IL (CHI-All Airports) to St. Louis Lambert International Airport?
A leading airline that operates on the route from Chicago, IL (CHI-All Airports) to St. Louis Lambert International Airport is Southwest Airlines (WN). It offers 208 flights every month. Like more options? Have a look at the ticket prices from United Airlines (UA). This carrier offers 208 monthly flights between these airports.
Are Chicago, IL (CHI-All Airports) to STL flight tickets cheaper when they're purchased at the last minute?
Tickets from Chicago, IL (CHI-All Airports) to Lambert Field are available up to a year before departure on Expedia. And although you may score great last-minute deal, it's never something you can count on. Also, booking your flights ahead of time means you'll have more choices — and you can avoid getting trapped in the dreaded middle seat! We're constantly updating our fares to bring you the biggest bargains, so check back often for all the latest specials.

Travel information

Travel information

Origin airport
CHI-All Airports
Destination airport
Lambert-St. Louis Intl.
Distance
395 km

Book with confidence

Book with confidence

Illinois to St. Louis Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Illinois to St. Louis will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring St. Louis.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with CHI to STL flights that won’t make your bank account wince. Ready to temporarily leave behind Illinois for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to STL with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Illinois to St. Louis Flights

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