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St. Charles

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St. Charles Flights as Low as $66

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

Frontier Airlines
Wed, Aug 12 - Tue, Aug 25
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$66 Roundtrip, found 1 hour ago
$66
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Wed, Aug 12 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $66 found 1 hour ago
Frontier Airlines
Tue, Jul 14 - Tue, Jul 14
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$68 Roundtrip, found 2 hours ago
$68
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, Jul 14 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Jul 14, priced at $68 found 2 hours ago
Frontier Airlines
Mon, Jul 6 - Wed, Jul 22
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$77 Roundtrip, found 2 hours ago
$77
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Jul 6 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jul 22, priced at $77 found 2 hours ago
Frontier Airlines
Mon, Aug 3 - Tue, Aug 18
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$79 Roundtrip, found 4 hours ago
$79
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Mon, Aug 3 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Aug 18, priced at $79 found 4 hours ago
Delta
Tue, Jul 14 - Tue, Jul 14
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$114 Roundtrip, found 2 hours ago
$114
Roundtrip
found 2 hours ago
Select Delta flight, departing Tue, Jul 14 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Jul 14, priced at $114 found 2 hours ago
Frontier Airlines
Tue, Aug 4 - Tue, Aug 11
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$142 Roundtrip, found 2 hours ago
$142
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, Aug 4 from Denver Intl. to Lambert-St. Louis Intl., returning Tue, Aug 11, priced at $142 found 2 hours ago
Frontier Airlines
Tue, Jul 14 - Tue, Jul 28
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$230 Roundtrip, found 2 hours ago
$230
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, Jul 14 from Logan Intl. to Lambert-St. Louis Intl., returning Tue, Jul 28, priced at $230 found 2 hours ago
Bargain Flight
Thu, Aug 27 - Mon, Sep 14
MSY
Louis Armstrong New Orleans Intl.
STL
Lambert-St. Louis Intl.
$242 Roundtrip, found 2 hours ago
$242
Roundtrip
found 2 hours ago
Select Bargain Flight flight, departing Thu, Aug 27 from Louis Armstrong New Orleans Intl. to Lambert-St. Louis Intl., returning Mon, Sep 14, priced at $242 found 2 hours ago
Frontier Airlines
Tue, Jul 7 - Wed, Jul 8
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$252 Roundtrip, found 2 hours ago
$252
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, Jul 7 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Wed, Jul 8, priced at $252 found 2 hours ago
Frontier Airlines
Fri, Jul 3 - Sat, Jul 18
EWR
Newark Liberty Intl. Airport
STL
Lambert-St. Louis Intl.
$261 Roundtrip, found 3 days ago
$261
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Jul 3 from Newark Liberty Intl. Airport to Lambert-St. Louis Intl., returning Sat, Jul 18, priced at $261 found 3 days ago
Delta
Sat, Oct 17 - Tue, Oct 20
DAL
Love Field
STL
Lambert-St. Louis Intl.
$263 Roundtrip, found 2 hours ago
$263
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, Oct 17 from Love Field to Lambert-St. Louis Intl., returning Tue, Oct 20, priced at $263 found 2 hours ago
Bargain Flight
Tue, Jun 9 - Wed, Jun 17
DCA
Ronald Reagan Washington National
STL
Lambert-St. Louis Intl.
$282 Roundtrip, found 2 days ago
$282
Roundtrip
found 2 days ago
Select Bargain Flight flight, departing Tue, Jun 9 from Ronald Reagan Washington National to Lambert-St. Louis Intl., returning Wed, Jun 17, priced at $282 found 2 days ago
American Airlines
Wed, Nov 11 - Sat, Nov 14
DCA
Ronald Reagan Washington National
STL
Lambert-St. Louis Intl.
$287 Roundtrip, found 2 hours ago
$287
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Nov 11 from Ronald Reagan Washington National to Lambert-St. Louis Intl., returning Sat, Nov 14, priced at $287 found 2 hours ago
Delta
Wed, Sep 2 - Tue, Sep 22
EYW
Key West Intl.
STL
Lambert-St. Louis Intl.
$293 Roundtrip, found 2 hours ago
$293
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Sep 2 from Key West Intl. to Lambert-St. Louis Intl., returning Tue, Sep 22, priced at $293 found 2 hours ago
American Airlines
Tue, Jun 23 - Thu, Jul 2
BRO
Brownsville-South Padre Island Intl.
STL
Lambert-St. Louis Intl.
$362 Roundtrip, found 1 hour ago
$362
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Tue, Jun 23 from Brownsville-South Padre Island Intl. to Lambert-St. Louis Intl., returning Thu, Jul 2, priced at $362 found 1 hour ago
Alaska Airlines
Sun, Jul 26 - Fri, Jul 31
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$832 Roundtrip, found 12 hours ago
$832
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Sun, Jul 26 from Denver Intl. to Lambert-St. Louis Intl., returning Fri, Jul 31, priced at $832 found 12 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 August, 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 14 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 $66, 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 $66 right now, why wait?

St. Charles Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$66

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 a full-service spa, 6 restaurants, and a casino. Our guests praise the clean rooms in our reviews. Popular ...
8.6/10 Excellent! (1,006 reviews)
"Room was large with separate sitting area. Shower was fantastic"

Reviewed on Jun 5, 2026

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Ameristar Casino Resort and Spa
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! (1,004 reviews)
"Have stayed here several times. We like it because you can walk to lots of restaurants and bars right next to the hotel. Staff is always great. Free parking!!"

Reviewed on Jun 6, 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)
"I was a little disappointed that the coffee shop didn't open the entire time we were there (three days). Also, the elevators were gross. The glass had fingerprints and faceprints from the kids and the floors were sticky and no one cleaned it the entire time we were there. Other than that our stay ..."

Reviewed on Jun 6, 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! (1,038 reviews)
"location was great"

Reviewed on Jun 6, 2026

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Country Inn & Suites by Radisson, St. Charles Historic District
Hyatt Regency St. Louis at The Arch

Hyatt Regency St. Louis at The Arch

4 out of 5
315 Chestnut St St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free WiFi, 3 restaurants, and 2 bars/lounges. Our guests praise the helpful staff and the clean ...
8.6/10 Excellent! (4,100 reviews)
"Hotel staff was friendly and room was very clean"

Reviewed on Jun 7, 2026

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Hyatt Regency 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! (2,006 reviews)
"Very clean, friendly staff,breakfast big variety,convient location,I will stay again"

Reviewed on Jun 7, 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 ...
9/10 Wonderful! (3,228 reviews)
"Garage parking is free on weekends"

Reviewed on Jun 7, 2026

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Clayton Plaza Hotel & Extended Stay
Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham

Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham

3 out of 5
1088 South Highway Drive Fenton MO
Book a stay at this business-friendly hotel in Fenton. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
7.8/10 Good! (1,341 reviews)
"We enjoyed our overnight stay and breakfast very much! The room was clean and the beds were comfortable. Breakfast was very good, with a variety of choices."

Reviewed on Jun 6, 2026

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Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham
See all 2,365 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.