₹7,274 Cheap Flights from Chicago (CHI) to St. Louis (STL)

View ₹7,274 flight on Tue, 12 May 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at ₹7,274 for one-way flights and ₹29,122 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 20 Apr - Tue, 28 Apr
ORD
Chicago
STL
St. Louis
₹29,122 Return, found 5 days ago
₹29,122
Return
found 5 days ago
Select United flight, departing Mon, 20 Apr from Chicago to St. Louis, returning Tue, 28 Apr, priced at ₹29,122 found 5 days ago
United
Mon, 20 Apr - Thu, 30 Apr
ORD
Chicago
STL
St. Louis
₹32,567 Return, found 5 days ago
₹32,567
Return
found 5 days ago
Select United flight, departing Mon, 20 Apr from Chicago to St. Louis, returning Thu, 30 Apr, priced at ₹32,567 found 5 days ago
United
Mon, 20 Apr - Fri, 1 May
ORD
Chicago
STL
St. Louis
₹36,572 Return, found 5 days ago
₹36,572
Return
found 5 days ago
Select United flight, departing Mon, 20 Apr from Chicago to St. Louis, returning Fri, 1 May, priced at ₹36,572 found 5 days ago
American Airlines
Sat, 18 Apr - Tue, 28 Apr
ORD
Chicago
STL
St. Louis
₹38,990 Return, found 5 days ago
₹38,990
Return
found 5 days ago
Select American Airlines flight, departing Sat, 18 Apr from Chicago to St. Louis, returning Tue, 28 Apr, priced at ₹38,990 found 5 days ago
United
Sun, 26 Apr - Mon, 27 Apr
ORD
Chicago
STL
St. Louis
₹40,787 Return, found 2 days ago
₹40,787
Return
found 2 days ago
Select United flight, departing Sun, 26 Apr from Chicago to St. Louis, returning Mon, 27 Apr, priced at ₹40,787 found 2 days ago
United
Tue, 21 Apr - Wed, 22 Apr
ORD
Chicago
STL
St. Louis
₹40,850 Return, found 4 days ago
₹40,850
Return
found 4 days ago
Select United flight, departing Tue, 21 Apr from Chicago to St. Louis, returning Wed, 22 Apr, priced at ₹40,850 found 4 days ago
Delta
Sun, 26 Apr - Mon, 27 Apr
ORD
Chicago
STL
St. Louis
₹41,704 Return, found 2 days ago
₹41,704
Return
found 2 days ago
Select Delta flight, departing Sun, 26 Apr from Chicago to St. Louis, returning Mon, 27 Apr, priced at ₹41,704 found 2 days ago
Delta
Tue, 21 Apr - Wed, 22 Apr
ORD
Chicago
STL
St. Louis
₹41,763 Return, found 4 days ago
₹41,763
Return
found 4 days ago
Select Delta flight, departing Tue, 21 Apr from Chicago to St. Louis, returning Wed, 22 Apr, priced at ₹41,763 found 4 days ago
American Airlines
Sat, 18 Apr - Mon, 27 Apr
ORD
Chicago
STL
St. Louis
₹42,430 Return, found 5 days ago
₹42,430
Return
found 5 days ago
Select American Airlines flight, departing Sat, 18 Apr from Chicago to St. Louis, returning Mon, 27 Apr, priced at ₹42,430 found 5 days ago
Delta
Sun, 26 Apr - Mon, 27 Apr
ORD
Chicago
STL
St. Louis
₹42,611 Return, found 2 days ago
₹42,611
Return
found 2 days ago
Select Delta flight, departing Sun, 26 Apr from Chicago to St. Louis, returning Mon, 27 Apr, priced at ₹42,611 found 2 days ago

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 ₹29,122. 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

Origin airport
O'Hare Intl.
Destination airport
Lambert-St. Louis Intl.
Return price
₹29,122
Distance
413 km

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