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O'Fallon

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O'Fallon Flights as Low as $51

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

Frontier Airlines
Thu, Nov 19 - Fri, Dec 4
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$51 Roundtrip, found 4 hours ago
$51
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Nov 19 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Dec 4, priced at $51 found 4 hours ago
Frontier Airlines
Fri, Dec 11 - Fri, Dec 25
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$53 Roundtrip, found 23 hours ago
$53
Roundtrip
found 23 hours ago
Select Frontier Airlines flight, departing Fri, Dec 11 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Dec 25, priced at $53 found 23 hours ago
Frontier Airlines
Wed, Nov 18 - Wed, Dec 2
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$54 Roundtrip, found 10 hours ago
$54
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Wed, Nov 18 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Dec 2, priced at $54 found 10 hours ago
Frontier Airlines
Wed, Dec 16 - Fri, Jan 1
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$56 Roundtrip, found 1 day ago
$56
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Dec 16 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Jan 1, priced at $56 found 1 day ago
Frontier Airlines
Fri, Dec 4 - Fri, Dec 4
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$58 Roundtrip, found 7 hours ago
$58
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Fri, Dec 4 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Dec 4, priced at $58 found 7 hours ago
Allegiant Air
Thu, Dec 3 - Sun, Dec 6
FLL
Fort Lauderdale - Hollywood Intl.
BLV
MidAmerica-St. Louis
$119 Roundtrip, found 3 hours ago
$119
Roundtrip
found 3 hours ago
Select Allegiant Air flight, departing Thu, Dec 3 from Fort Lauderdale - Hollywood Intl. to MidAmerica-St. Louis, returning Sun, Dec 6, priced at $119 found 3 hours ago
Frontier Airlines
Wed, Nov 18 - Wed, Dec 2
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$120 Roundtrip, found 1 hour ago
$120
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Wed, Nov 18 from Orlando Intl. to Lambert-St. Louis Intl., returning Wed, Dec 2, priced at $120 found 1 hour ago
Frontier Airlines
Thu, Nov 19 - Fri, Dec 4
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$128 Roundtrip, found 1 day ago
$128
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Nov 19 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Fri, Dec 4, priced at $128 found 1 day ago
Southwest Airlines
Thu, Nov 19 - Fri, Dec 4
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$143 Roundtrip, found 4 hours ago
$143
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Thu, Nov 19 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Dec 4, priced at $143 found 4 hours ago
American Airlines
Thu, Nov 19 - Fri, Dec 4
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$199 Roundtrip, found 4 hours ago
$199
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Thu, Nov 19 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Dec 4, priced at $199 found 4 hours ago
Frontier Airlines
Wed, Nov 11 - Wed, Nov 25
FLL
Fort Lauderdale - Hollywood Intl.
STL
Lambert-St. Louis Intl.
$203 Roundtrip, found 14 hours ago
$203
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Wed, Nov 11 from Fort Lauderdale - Hollywood Intl. to Lambert-St. Louis Intl., returning Wed, Nov 25, priced at $203 found 14 hours ago
Southwest Airlines
Wed, Nov 18 - Wed, Dec 2
DAL
Love Field
STL
Lambert-St. Louis Intl.
$213 Roundtrip, found 5 hours ago
$213
Roundtrip
found 5 hours ago
Select Southwest Airlines flight, departing Wed, Nov 18 from Love Field to Lambert-St. Louis Intl., returning Wed, Dec 2, priced at $213 found 5 hours ago
Delta
Thu, Nov 19 - Fri, Dec 4
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$217 Roundtrip, found 4 hours ago
$217
Roundtrip
found 4 hours ago
Select Delta flight, departing Thu, Nov 19 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Dec 4, priced at $217 found 4 hours ago
United
Sat, Nov 21 - Mon, Nov 23
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$223 Roundtrip, found 1 day ago
$223
Roundtrip
found 1 day ago
Select United flight, departing Sat, Nov 21 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Nov 23, priced at $223 found 1 day ago
Frontier Airlines
Sat, Nov 14 - Mon, Nov 16
SFO
San Francisco Intl.
STL
Lambert-St. Louis Intl.
$227 Roundtrip, found 8 hours ago
$227
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Sat, Nov 14 from San Francisco Intl. to Lambert-St. Louis Intl., returning Mon, Nov 16, priced at $227 found 8 hours ago
Alaska Airlines
Thu, Dec 31 - Tue, Jan 12
SFO
San Francisco Intl.
STL
Lambert-St. Louis Intl.
$369 Roundtrip, found 1 day ago
$369
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Dec 31 from San Francisco Intl. to Lambert-St. Louis Intl., returning Tue, Jan 12, priced at $369 found 1 day 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 November, 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 16 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 MidAmerica-St. Louis 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 $51, 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 $51 right now, why wait?

O'Fallon Flight Information
Destination airport
MidAmerica-St. Louis
Destination airport IATA code
BLV
Roundtrip price
$119

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)
"The place was clean. Undergoing some renovations no big deal. In a very noisy location 👎. The air conditioning wasn’t working well, I was too hot therefore didn’t sleep well. Won’t stay here again."

Reviewed on Oct 22, 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 ...
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Super 8 by Wyndham O'Fallon
Quality Inn O'Fallon - St. Louis - Shiloh

Quality Inn O'Fallon - St. Louis - Shiloh

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)
"I have never stayed at a hotel (in over 50 years) that did NOT have any Hot Water in the shower!! Carpet was ripped and stained in multiple places. The attendant at the front desk said the owner is alergic to dogs so they give people who travel with pets the worst rooms in the hotel. Didn't offer ..."

Reviewed on Oct 22, 2026

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Quality Inn O'Fallon - St. Louis - Shiloh
La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis

La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis

3 out of 5
136 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 clean rooms in our reviews. ...
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La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis
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. ...
6.4/10 (209 reviews)
"Hallways were dated, breakfast, no eggs or coffee when I was down there"

Reviewed on Oct 22, 2026

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Comfort Inn & Suites O'Fallon - St. Louis Area
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 ...
6/10 (328 reviews)
"Well I got to my room, and my door was already open. I reserved a king suite, and got a 2 bed room."

Reviewed on Oct 19, 2026

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Welcome Suites
Baymont by Wyndham O'Fallon St. Louis Area

Baymont by Wyndham O'Fallon St. Louis Area

2.5 out of 5
1320 Park Plaza Drive O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Popular attractions O'Fallon Family Sports Park and ...
Get rates
Baymont by Wyndham O'Fallon St. Louis Area
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. ...
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Holiday Inn Express & Suites O'Fallon/Shiloh by IHG
See all 1,468 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.