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O'Fallon

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O'Fallon Flights as Low as $68

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

Frontier Airlines
Wed, Apr 22 - Wed, Apr 22
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$68 Roundtrip, found 3 hours ago
$68
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Wed, Apr 22 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Apr 22, priced at $68 found 3 hours ago
Frontier Airlines
Sat, Apr 18 - Sat, May 2
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$88 Roundtrip, found 3 hours ago
$88
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Apr 18 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, May 2, priced at $88 found 3 hours ago
Frontier Airlines
Tue, May 26 - Mon, Jun 1
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$100 Roundtrip, found 3 hours ago
$100
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Tue, May 26 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Jun 1, priced at $100 found 3 hours ago
Frontier Airlines
Wed, Apr 1 - Sat, Apr 25
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$110 Roundtrip, found 3 hours ago
$110
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Wed, Apr 1 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, Apr 25, priced at $110 found 3 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
Frontier Airlines
Sat, May 9 - Fri, May 15
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$121 Roundtrip, found 13 hours ago
$121
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Sat, May 9 from Denver Intl. to Lambert-St. Louis Intl., returning Fri, May 15, priced at $121 found 13 hours ago
American Airlines
Wed, Apr 29 - Tue, May 5
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$159 Roundtrip, found 3 hours ago
$159
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Apr 29 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Tue, May 5, priced at $159 found 3 hours ago
Frontier Airlines
Thu, May 14 - Sat, May 23
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$161 Roundtrip, found 1 hour ago
$161
Roundtrip
found 1 hour 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 $161 found 1 hour ago
Frontier Airlines
Thu, Apr 9 - Wed, Apr 15
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$182 Roundtrip, found 3 hours ago
$182
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Thu, Apr 9 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Wed, Apr 15, priced at $182 found 3 hours ago
Bargain Flight
Sat, Apr 11 - Tue, Apr 14
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$190 Roundtrip, found 3 hours ago
$190
Roundtrip
found 3 hours ago
Select Bargain Flight flight, departing Sat, Apr 11 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Tue, Apr 14, priced at $190 found 3 hours ago
Frontier Airlines
Sat, Apr 18 - Mon, May 4
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$204 Roundtrip, found 3 hours ago
$204
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Apr 18 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Mon, May 4, priced at $204 found 3 hours ago
Frontier Airlines
Thu, Apr 9 - Mon, Apr 27
SFO
San Francisco Intl.
STL
Lambert-St. Louis Intl.
$210 Roundtrip, found 5 hours ago
$210
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, Apr 9 from San Francisco Intl. to Lambert-St. Louis Intl., returning Mon, Apr 27, priced at $210 found 5 hours ago
Bargain Flight
Tue, Jun 9 - Tue, Jun 23
SMF
Sacramento Intl.
STL
Lambert-St. Louis Intl.
$276 Roundtrip, found 3 hours ago
$276
Roundtrip
found 3 hours ago
Select Bargain Flight flight, departing Tue, Jun 9 from Sacramento Intl. to Lambert-St. Louis Intl., returning Tue, Jun 23, priced at $276 found 3 hours ago
Delta
Tue, Apr 28 - Tue, May 12
DAL
Love Field
STL
Lambert-St. Louis Intl.
$281 Roundtrip, found 3 hours ago
$281
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Apr 28 from Love Field to Lambert-St. Louis Intl., returning Tue, May 12, priced at $281 found 3 hours ago
Delta
Tue, Apr 21 - Sat, May 2
FAT
Fresno Yosemite Intl.
STL
Lambert-St. Louis Intl.
$351 Roundtrip, found 3 hours ago
$351
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Apr 21 from Fresno Yosemite Intl. to Lambert-St. Louis Intl., returning Sat, May 2, priced at $351 found 3 hours ago
Alaska Airlines
Tue, Apr 21 - Sat, May 2
FAT
Fresno Yosemite Intl.
STL
Lambert-St. Louis Intl.
$376 Roundtrip, found 3 hours ago
$376
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Tue, Apr 21 from Fresno Yosemite Intl. to Lambert-St. Louis Intl., returning Sat, May 2, priced at $376 found 3 hours ago

Cheap Flights to O'Fallon

Fall in love at first flight with your vacation to O'Fallon 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 O'Fallon on Hotwire, and you’ll be up, up, and on a getaway in no time.

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

Frequently Asked Questions About flights to O'Fallon

Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to O'Fallon 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 O'Fallon?

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 O'Fallon are in April, but when you book your flight on Hotwire, savings are always in season.

How many airlines fly to O'Fallon?

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 O'Fallon.

What airport is best to fly into O'Fallon?

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

How much are flights to O'Fallon?

Got very cheap flights on your vacation itinerary? When you book your airline tickets to O'Fallon on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $68, 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 O'Fallon?

The trick to saving a stack of cash on your flight to O'Fallon? 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 $68 right now, why wait?

O'Fallon Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$67

Last Minute Hotel Deals in O'Fallon

Drury Inn & Suites St. Louis O'Fallon, IL

Drury Inn & Suites St. Louis O'Fallon, IL

3 out of 5
1118 Central Park Drive O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
9.6/10 Exceptional! (1,004 reviews)
One of Elevators did not work the entire time we were there. The shower faucet handle in our room fell off. There was no hot water.

Reviewed on Mar 19, 2026

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Drury Inn & Suites St. Louis O'Fallon, IL
Super 8 by Wyndham O'Fallon

Super 8 by Wyndham O'Fallon

2 out of 5
1100 Eastgate Dr O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
7/10 Good! (1,002 reviews)
This hotel was listed with a “good” rating but it is really edging on “fair” to “poor.” It’s an old and humid building. The room was ok, but it did smell like smoke and there was a stain on one bed’s sheets and visible ones the mattresses around the bottom, but no sign of bugs as other reviews have ...

Reviewed on Mar 19, 2026

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Super 8 by Wyndham O'Fallon
Quality Inn O'Fallon IL - St. Louis

Quality Inn O'Fallon IL - St. Louis

3 out of 5
1409 W US 50 O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
7.4/10 Good! (1,000 reviews)
Everything was fine

Reviewed on Mar 15, 2026

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Quality Inn O'Fallon IL - St. Louis
Sleep Inn O'Fallon near I-64

Sleep Inn O'Fallon near I-64

2.5 out of 5
140 Venita Dr O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
7/10 Good! (919 reviews)
parking was easy to get into

Reviewed on Mar 15, 2026

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Sleep Inn O'Fallon near I-64
Welcome Suites

Welcome Suites

2 out of 5
148 Regency Park O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free WiFi, free parking, and a fitness center. Popular attractions O'Fallon Family Sports Park ...
5.6/10 (222 reviews)
Excelente ubicación Buen trato del personal Regresaré ! Gracias

Reviewed on Mar 16, 2026

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Welcome Suites
Comfort Inn & Suites O'Fallon - St. Louis Area

Comfort Inn & Suites O'Fallon - St. Louis Area

2 out of 5
116 Regency Park O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. ...
6.6/10 (117 reviews)
NO WE WANTED A SUITE WITH QUEEN BEDS TAKING A FRIEND FOR SURGERY IN ST LOUIS !! ADVERTISEMENT ON THE ROOM SAID A SUITE THIS PLACE HAS NO SUCH ROOM!! THE FRINT DESK( ( WE KNOW THEIR NAME) SAID THAT IT HAPPENS ALOT !! I STAY AT COMFORT SUITE INNS ALWAYS !! THIS ONE WAS DISSAPPOINTING WILL NOT STAY ...

Reviewed on Mar 16, 2026

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Comfort Inn & Suites O'Fallon - St. Louis Area
Candlewood Suites O Fallon by IHG

Candlewood Suites O Fallon by IHG

2.5 out of 5
1332 Park Plaza Dr O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free WiFi, free parking, and a fitness center. Our guests praise the helpful staff in our reviews. ...
8/10 Very Good! (431 reviews)
Clean room, friendly staff, happy guest :)

Reviewed on Mar 15, 2026

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Candlewood Suites O Fallon by IHG
Holiday Inn Express & Suites O'Fallon/Shiloh by IHG

Holiday Inn Express & Suites O'Fallon/Shiloh by IHG

2.5 out of 5
3396 Green Mount Crossing Drive Shiloh O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. ...
Get rates
Holiday Inn Express & Suites O'Fallon/Shiloh by IHG
See all 1,412 properties in O'Fallon
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.