Search Cheap Flights to
St. Charles

Search 400 airlines and 321,000 hotels worldwide.

Stop Planning & Start Exploring

FREE 24 hour cancellation on most flights

St. Charles Flights as Low as $70

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

Spirit Airlines
Fri, Jul 18 - Mon, Aug 4
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$70 Roundtrip, found 11 hours ago
$70
Roundtrip
found 11 hours ago
Select Spirit Airlines flight, departing Fri, Jul 18 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Mon, Aug 4, priced at $70 found 11 hours ago
Spirit Airlines
Thu, Jul 17 - Thu, Jul 31
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$73 Roundtrip, found 1 hour ago
$73
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Thu, Jul 17 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Thu, Jul 31, priced at $73 found 1 hour ago
Spirit Airlines
Fri, Jul 18 - Fri, Jul 18
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$80 Roundtrip, found 12 hours ago
$80
Roundtrip
found 12 hours ago
Select Spirit Airlines flight, departing Fri, Jul 18 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Fri, Jul 18, priced at $80 found 12 hours ago
Frontier Airlines
Sat, Jul 19 - Sat, Jul 26
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$88 Roundtrip, found 1 hour ago
$88
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Jul 19 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Jul 26, priced at $88 found 1 hour ago
Delta
Thu, Aug 14 - Mon, Aug 18
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$123 Roundtrip, found 19 hours ago
$123
Roundtrip
found 19 hours ago
Select Delta flight, departing Thu, Aug 14 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Mon, Aug 18, priced at $123 found 19 hours ago
Spirit Airlines
Thu, Aug 7 - Thu, Aug 14
EWR
Newark Liberty Intl. Airport
STL
Lambert-St. Louis Intl.
$135 Roundtrip, found 17 hours ago
$135
Roundtrip
found 17 hours ago
Select Spirit Airlines flight, departing Thu, Aug 7 from Newark Liberty Intl. Airport to Lambert-St. Louis Intl., returning Thu, Aug 14, priced at $135 found 17 hours ago
American Airlines
Thu, Sep 4 - Thu, Sep 11
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$156 Roundtrip, just found
$156
Roundtrip
just found
Select American Airlines flight, departing Thu, Sep 4 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Sep 11, priced at $156 just found
American Airlines
Thu, Nov 27 - Wed, Dec 3
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$159 Roundtrip, found 4 hours ago
$159
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Thu, Nov 27 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Dec 3, priced at $159 found 4 hours ago
Spirit Airlines
Thu, Sep 25 - Thu, Oct 2
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$164 Roundtrip, found 2 hours ago
$164
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Thu, Sep 25 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Thu, Oct 2, priced at $164 found 2 hours ago
Bargain Flight
Thu, Jul 3 - Mon, Jul 7
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$180 Roundtrip, found 19 hours ago
$180
Roundtrip
found 19 hours ago
Select Bargain Flight flight, departing Thu, Jul 3 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Mon, Jul 7, priced at $180 found 19 hours ago
United
Tue, Nov 18 - Wed, Nov 19
SAT
San Antonio Intl.
STL
Lambert-St. Louis Intl.
$192 Roundtrip, just found
$192
Roundtrip
just found
Select United flight, departing Tue, Nov 18 from San Antonio Intl. to Lambert-St. Louis Intl., returning Wed, Nov 19, priced at $192 just found
Delta
Tue, Aug 26 - Tue, Aug 26
DAL
Love Field
STL
Lambert-St. Louis Intl.
$194 Roundtrip, found 1 hour ago
$194
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Aug 26 from Love Field to Lambert-St. Louis Intl., returning Tue, Aug 26, priced at $194 found 1 hour ago
United
Wed, Aug 27 - Thu, Sep 4
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$195 Roundtrip, found 8 hours ago
$195
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Aug 27 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Thu, Sep 4, priced at $195 found 8 hours ago
Delta
Tue, Sep 2 - Wed, Sep 3
MSY
Louis Armstrong New Orleans Intl.
STL
Lambert-St. Louis Intl.
$207 Roundtrip, just found
$207
Roundtrip
just found
Select Delta flight, departing Tue, Sep 2 from Louis Armstrong New Orleans Intl. to Lambert-St. Louis Intl., returning Wed, Sep 3, priced at $207 just found
United
Sat, Oct 25 - Mon, Oct 27
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$252 Roundtrip, just found
$252
Roundtrip
just found
Select United flight, departing Sat, Oct 25 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Mon, Oct 27, priced at $252 just found
Alaska Airlines
Tue, Aug 26 - Tue, Sep 2
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$254 Roundtrip, found 2 hours ago
$254
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Tue, Aug 26 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Tue, Sep 2, priced at $254 found 2 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 July, 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 $70, 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 $70 right now, why wait?

St. Charles Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$70

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
Stay at this 4.5-star luxury hotel in St. Charles. Enjoy an outdoor pool, a full-service spa, and 6 restaurants. Our guests praise the clean rooms and the property ...
8.2/10 Very Good! (1,007 reviews)
"Staff was very accommodating"

Reviewed on Jun 23, 2025

Get rates
Ameristar Casino Resort and Spa
Relax Inn Saint Charles
Relax Inn Saint Charles
2 out of 5
3800 Harry S Truman Blvd, St. Charles, MO
Stay at this motel in St. Charles. Enjoy free WiFi, free parking, and a 24-hour front desk. Our guests praise the clean rooms in our reviews. Popular attractions ...
6.2/10 (903 reviews)
"Good value for the cost."

Reviewed on Jun 27, 2025

Get rates
Relax Inn Saint Charles
Drury Plaza Hotel St. Louis St. Charles
Drury Plaza Hotel St. Louis St. Charles
3 out of 5
380 Mulholland Drive, St. Charles, MO
Stay at this 3-star 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! (1,006 reviews)
"Very nice. The rooms are clean and the bed is very comfortable. Nice evening snacks and good breakfast. Great location."

Reviewed on Jun 25, 2025

Get rates
Drury Plaza Hotel St. Louis St. Charles
Country Inn & Suites by Radisson, St. Peters, MO
Country Inn & Suites by Radisson, St. Peters, MO
2.5 out of 5
3877 Veterans Memorial Pkwy, 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 ...
8/10 Very Good! (1,006 reviews)
"This is our go to for a routine family trip due to location and price for suite style rooms. It's a good hotel at a reasonable price. That breakfast starts later on the weekend versus weekdays feels like a scam though. Please start breakfast at the same time all week for a better review."

Reviewed on Jun 28, 2025

Get rates
Country Inn & Suites by Radisson, St. Peters, MO
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! (950 reviews)
"Good location, good price"

Reviewed on Jun 27, 2025

Get rates
Comfort Suites St Charles - St Louis
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 ...
9.2/10 Wonderful! (1,005 reviews)
"This was an amazing spot right on Main Street. Very relaxing and quiet"

Reviewed on Jun 29, 2025

Get rates
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
Stay at this 4-star business-friendly hotel in St. Louis. Enjoy free WiFi, 3 restaurants, and 2 bars/lounges. Our guests praise the helpful staff and the clean ...
8.4/10 Very Good! (3,832 reviews)
"Close to everything"

Reviewed on Jun 30, 2025

Get rates
Hyatt Regency St. Louis at The Arch
The Arch Convention Hotel
The Arch Convention Hotel
3.5 out of 5
811 N 9th Street, St. Louis, MO
Stay at this 3.5-star business-friendly hotel in St. Louis. Enjoy free WiFi, a 24-hour fitness center, and parking (surcharge). Our guests praise the helpful ...
7/10 Good! (1,015 reviews)
"Very comfy and quiet"

Reviewed on Jun 25, 2025

Get rates
The Arch Convention Hotel
See all 2,238 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.