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St. Charles

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St. Charles Flights as Low as $80

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

Frontier Airlines
Thu, May 14 - Sat, May 16
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$80 Roundtrip, found 1 day ago
$80
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, May 14 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Sat, May 16, priced at $80 found 1 day ago
Frontier Airlines
Wed, May 20 - Mon, Jun 1
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$84 Roundtrip, found 5 hours ago
$84
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Wed, May 20 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Jun 1, priced at $84 found 5 hours ago
Frontier Airlines
Thu, May 14 - Sat, May 23
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$84 Roundtrip, found 6 hours ago
$84
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, May 14 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Sat, May 23, priced at $84 found 6 hours ago
Frontier Airlines
Tue, May 19 - Mon, Jun 1
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$85 Roundtrip, found 1 day ago
$85
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, May 19 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Jun 1, priced at $85 found 1 day ago
Frontier Airlines
Sat, Apr 25 - Sat, May 9
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$86 Roundtrip, found 2 hours ago
$86
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sat, Apr 25 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, May 9, priced at $86 found 2 hours ago
Frontier Airlines
Sat, Apr 25 - Wed, May 13
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$144 Roundtrip, found 11 hours ago
$144
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Sat, Apr 25 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Wed, May 13, priced at $144 found 11 hours ago
Frontier Airlines
Tue, Apr 14 - Fri, Apr 24
TTN
Mercer
STL
Lambert-St. Louis Intl.
$163 Roundtrip, found 5 hours ago
$163
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Tue, Apr 14 from Mercer to Lambert-St. Louis Intl., returning Fri, Apr 24, priced at $163 found 5 hours ago
Frontier Airlines
Fri, May 15 - Mon, May 18
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$177 Roundtrip, found 13 hours ago
$177
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Fri, May 15 from O'Hare Intl. to Lambert-St. Louis Intl., returning Mon, May 18, priced at $177 found 13 hours ago
Frontier Airlines
Fri, May 1 - Mon, May 4
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$182 Roundtrip, found 5 hours ago
$182
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Fri, May 1 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Mon, May 4, priced at $182 found 5 hours ago
Frontier Airlines
Thu, Apr 16 - Thu, Apr 23
LGA
LaGuardia
STL
Lambert-St. Louis Intl.
$182 Roundtrip, found 19 hours ago
$182
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Thu, Apr 16 from LaGuardia to Lambert-St. Louis Intl., returning Thu, Apr 23, priced at $182 found 19 hours ago
Bargain Flight
Tue, Apr 21 - Tue, Apr 28
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$191 Roundtrip, found 4 hours ago
$191
Roundtrip
found 4 hours ago
Select Bargain Flight flight, departing Tue, Apr 21 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Tue, Apr 28, priced at $191 found 4 hours ago
Delta
Wed, Apr 29 - Tue, May 5
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$191 Roundtrip, found 5 hours ago
$191
Roundtrip
found 5 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 $191 found 5 hours ago
American Airlines
Tue, May 12 - Wed, May 13
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$199 Roundtrip, found 4 hours ago
$199
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, May 12 from O'Hare Intl. to Lambert-St. Louis Intl., returning Wed, May 13, priced at $199 found 4 hours ago
Delta
Tue, May 12 - Wed, May 13
MKE
General Mitchell Intl.
STL
Lambert-St. Louis Intl.
$231 Roundtrip, found 12 hours ago
$231
Roundtrip
found 12 hours ago
Select Delta flight, departing Tue, May 12 from General Mitchell Intl. to Lambert-St. Louis Intl., returning Wed, May 13, priced at $231 found 12 hours ago
Delta
Tue, Jun 2 - Tue, Jun 9
DAL
Love Field
STL
Lambert-St. Louis Intl.
$289 Roundtrip, found 5 hours ago
$289
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Jun 2 from Love Field to Lambert-St. Louis Intl., returning Tue, Jun 9, priced at $289 found 5 hours ago
Alaska Airlines
Sat, May 9 - Fri, May 15
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$536 Roundtrip, found 9 hours ago
$536
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Sat, May 9 from Denver Intl. to Lambert-St. Louis Intl., returning Fri, May 15, priced at $536 found 9 hours 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 $80, 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 $80 right now, why wait?

St. Charles Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$80

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! (1,003 reviews)
Clean

Reviewed on Mar 26, 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! (1,006 reviews)
Clean environment the breakfast was hot and fresh

Reviewed on Mar 30, 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! (1,007 reviews)
Wait times were an issue because one elevator has been broken for over a month

Reviewed on Mar 30, 2026

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Drury Plaza Hotel 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! (1,011 reviews)
Everything about our stay was very nice. Room spacious and clean. The beds were comfortable and breakfast was varied, hot and fresh.

Reviewed on Mar 30, 2026

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Country Inn & Suites by Radisson, St. Charles Historic District
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! (1,007 reviews)
The breakfast menu was mediocre. There was not a lot to choose from. If you wanted your omelette special made like they advertise. You had to wait in a line that consistently had at least 10 people. The quality of the food was average. The size of the pool at this facility was extremely small considering ...

Reviewed on Mar 30, 2026

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Embassy Suites by Hilton St. Louis St. Charles
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! (3,357 reviews)
Nice hotel in a historic building. Excellent staff. Manager was working the breakfast buffet area and my mother in law said to him it was nice to see the suites helping out. He replied that there wasn’t a job there that he would ask any of his employees to do that he himself would not do.

Reviewed on Mar 30, 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! (1,909 reviews)
Room was clean, pool was nice and breakfast had a great variety of foods to choose.

Reviewed on Mar 30, 2026

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Pear Tree Inn St. Louis Near Union Station
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! (3,135 reviews)
I did not eat breakfast but it’s was an amazing stay.

Reviewed on Mar 30, 2026

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Clayton Plaza Hotel & Extended Stay
See all 2,368 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.