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St. Charles

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St. Charles Flights as Low as $56

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Frontier Airlines
Wed, May 20 - Wed, Jun 3
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$56 Roundtrip, found 4 hours ago
$56
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Wed, May 20 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jun 3, priced at $56 found 4 hours ago
Frontier Airlines
Sat, May 16 - Wed, Jun 3
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$62 Roundtrip, found 6 hours ago
$62
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, May 16 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jun 3, priced at $62 found 6 hours ago
Frontier Airlines
Wed, Apr 29 - Wed, May 13
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$67 Roundtrip, found 6 hours ago
$67
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Wed, Apr 29 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, May 13, priced at $67 found 6 hours ago
Frontier Airlines
Thu, Apr 30 - Mon, May 11
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$68 Roundtrip, found 6 hours ago
$68
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, Apr 30 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, May 11, priced at $68 found 6 hours ago
Frontier Airlines
Tue, May 26 - Wed, Jun 3
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$72 Roundtrip, found 5 hours ago
$72
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Tue, May 26 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jun 3, priced at $72 found 5 hours ago
Frontier Airlines
Tue, Jun 2 - Wed, Jun 10
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$88 Roundtrip, found 6 hours ago
$88
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Tue, Jun 2 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Wed, Jun 10, priced at $88 found 6 hours ago
Frontier Airlines
Sat, Apr 25 - Sat, May 9
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$100 Roundtrip, found 6 hours ago
$100
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, Apr 25 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, May 9, priced at $100 found 6 hours ago
Delta
Wed, Apr 29 - Tue, May 5
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$117 Roundtrip, found 3 hours ago
$117
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Apr 29 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Tue, May 5, priced at $117 found 3 hours ago
American Airlines
Tue, May 12 - Wed, May 13
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$119 Roundtrip, just found
$119
Roundtrip
just found
Select American Airlines flight, departing Tue, May 12 from O'Hare Intl. to Lambert-St. Louis Intl., returning Wed, May 13, priced at $119 just found
Frontier Airlines
Sun, Apr 26 - Sat, May 9
PHL
Philadelphia Intl.
STL
Lambert-St. Louis Intl.
$142 Roundtrip, found 12 hours ago
$142
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Sun, Apr 26 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Sat, May 9, priced at $142 found 12 hours ago
Frontier Airlines
Tue, Apr 28 - Sat, May 9
TTN
Mercer
STL
Lambert-St. Louis Intl.
$153 Roundtrip, found 14 hours ago
$153
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Tue, Apr 28 from Mercer to Lambert-St. Louis Intl., returning Sat, May 9, priced at $153 found 14 hours ago
Frontier Airlines
Fri, Apr 24 - Thu, Apr 30
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$160 Roundtrip, found 8 hours ago
$160
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Fri, Apr 24 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Thu, Apr 30, priced at $160 found 8 hours ago
United
Tue, May 12 - Wed, May 13
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$175 Roundtrip, just found
$175
Roundtrip
just found
Select United flight, departing Tue, May 12 from O'Hare Intl. to Lambert-St. Louis Intl., returning Wed, May 13, priced at $175 just found
Bargain Flight
Thu, Apr 9 - Thu, Apr 16
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$201 Roundtrip, found 6 hours ago
$201
Roundtrip
found 6 hours ago
Select Bargain Flight flight, departing Thu, Apr 9 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Thu, Apr 16, priced at $201 found 6 hours ago
Delta
Tue, Jun 2 - Wed, Jun 10
DAL
Love Field
STL
Lambert-St. Louis Intl.
$241 Roundtrip, found 6 hours ago
$241
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Jun 2 from Love Field to Lambert-St. Louis Intl., returning Wed, Jun 10, priced at $241 found 6 hours ago
Alaska Airlines
Sat, May 9 - Fri, May 15
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$551 Roundtrip, found 1 hour ago
$551
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Sat, May 9 from Denver Intl. to Lambert-St. Louis Intl., returning Fri, May 15, priced at $551 found 1 hour ago

Cheap Flights to St. Charles

Fall in love at first flight with your vacation to St. Charles by saving a ton of cash on your last-minute cheap flight. There’s no more scouring the internet for a good deal—book your flight to St. Charles on Hotwire, and you’ll be up, up, and on a getaway in no time.

Because once the wheels are down in St. Charles, the good times start rolling. So buckle up, you’re in for a fun ride.

Frequently Asked Questions About flights to St. Charles

Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to St. Charles with a tiny bag of pretzels in your hand before you can say “tray tables in the upright position”—and for a ticket price that works for your vacay budget.

So all you have to worry about is where you’re headed after the STL airport.

What is the cheapest month to fly to St. Charles?

Airline ticket prices fluctuate all the time, depending on the day of the week or the month of the year. The cheapest round trip flights to St. Charles are in May, but when you book your flight on Hotwire, savings are always in season.

How many airlines fly to St. Charles?

Variety is the spice of life, even when it comes to booking your next trip. Want options for airlines? You’ll find 15 to choose from for your flight to St. Charles.

What airport is best to fly into St. Charles?

When you’re planning your trip to St. Charles, convenience is the name of the game. Luckily, St. Charles Lambert-St. Louis Intl. Airport is nearby so you can deplane and get going on checking off everything on your St. Charles must-do list.

How much are flights to St. Charles?

Got very cheap flights on your vacation itinerary? When you book your airline tickets to St. Charles on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $56, you’ll have leftover cash for at least a magazine and a bottle of water at the airport book store.

How to get cheap flights to St. Charles?

The trick to saving a stack of cash on your flight to St. Charles? Snatch up that Hotwire flight deal when you see a killer rate because it could be gone in a flash. And with flights as low as $56 right now, why wait?

St. Charles Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$56

Last Minute Hotel Deals in St. Charles

Ameristar Casino Resort and Spa

Ameristar Casino Resort and Spa

4.5 out of 5
1 Ameristar Blvd St. Charles MO
Book a stay at this luxury hotel in St. Charles. Enjoy an outdoor pool, a full-service spa, and 6 restaurants. Our guests praise the clean rooms in our reviews. ...
8.4/10 Very Good! (1,006 reviews)
Enjoyed our stay. Clean facility

Reviewed on Apr 4, 2026

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Ameristar Casino Resort and Spa
Comfort Suites St Charles - St Louis

Comfort Suites St Charles - St Louis

2.5 out of 5
1400 S 5th St St. Charles MO
Book a stay at this business-friendly hotel in St. Charles. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
8.4/10 Very Good! (1,002 reviews)
The room was clean, had all the things you need. Allen at the front desk was such a joy and always helpful. Breakfast was simple but decent (I am GF, couldn't eat everything). Easy to get to the Highway. Walking distance to Old St.Charles and Trail.

Reviewed on Apr 5, 2026

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Comfort Suites St Charles - St Louis
Drury Plaza Hotel St. Louis St. Charles

Drury Plaza Hotel St. Louis St. Charles

3 out of 5
380 Mulholland Drive St. Charles MO
Book a stay at this business-friendly hotel in St. Charles. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful ...
9.6/10 Exceptional! (1,005 reviews)
Nice breakfast

Reviewed on Apr 4, 2026

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Drury Plaza Hotel St. Louis St. Charles
Embassy Suites by Hilton St. Louis St. Charles

Embassy Suites by Hilton St. Louis St. Charles

3.5 out of 5
2 Convention Center Plz St. Charles MO
Book a stay at this business-friendly hotel in St. Charles. Enjoy free breakfast, free parking, and room service. Our guests praise the breakfast and the helpful ...
8.8/10 Excellent! (1,004 reviews)
Good selection at breakfast, however due to a large crowd, the drinks were out often.

Reviewed on Apr 5, 2026

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Embassy Suites by Hilton St. Louis St. Charles
Country Inn & Suites by Radisson, St. Charles Historic District

Country Inn & Suites by Radisson, St. Charles Historic District

2.5 out of 5
1190 S Main St St. Charles MO
Book a stay at this business-friendly hotel in St. Charles. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful ...
9.4/10 Exceptional! (1,004 reviews)
Great staff at front desk! Good continental breakfast! Nice area! AC didn’t cool…seems hotel is control of temps! Beware…thankful it was cool at night outside! Hallways AC was great!

Reviewed on Apr 3, 2026

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Country Inn & Suites by Radisson, St. Charles Historic District
Clayton Plaza Hotel & Extended Stay

Clayton Plaza Hotel & Extended Stay

3.5 out of 5
7750 Carondelet Avenue St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and a 24-hour fitness center. Our guests praise the breakfast and ...
8.8/10 Excellent! (3,139 reviews)
The hotel is very good, and clean

Reviewed on Apr 5, 2026

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Clayton Plaza Hotel & Extended Stay
Drury Plaza Hotel St. Louis at the Arch

Drury Plaza Hotel St. Louis at the Arch

3 out of 5
2 South 4th Street St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and 2 hot tubs. Our guests praise the breakfast and the pool in our ...
9.4/10 Exceptional! (3,355 reviews)
Super helpful and friendly staff, especially at breakfast and the front desk

Reviewed on Apr 5, 2026

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Drury Plaza Hotel St. Louis at the Arch
Pear Tree Inn St. Louis Near Union Station

Pear Tree Inn St. Louis Near Union Station

3 out of 5
2211 Market Street St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the restaurant ...
8.8/10 Excellent! (1,924 reviews)
The room was clean. The bathroom was old so the tub didn’t look as clean as desired. Overall, I enjoyed my stay.

Reviewed on Apr 5, 2026

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Pear Tree Inn St. Louis Near Union Station
See all 2,375 properties in St. Charles
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.