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O'Fallon

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O'Fallon Flights as Low as $56

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.
$56 Roundtrip, found 1 day ago
$56
Roundtrip
found 1 day 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 $56 found 1 day ago
Frontier Airlines
Tue, Jun 2 - Tue, Jun 16
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$58 Roundtrip, found 8 hours ago
$58
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Tue, Jun 2 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Jun 16, priced at $58 found 8 hours ago
Frontier Airlines
Thu, Jun 4 - Tue, Jun 16
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$64 Roundtrip, found 6 hours ago
$64
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, Jun 4 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Jun 16, priced at $64 found 6 hours ago
Frontier Airlines
Sat, Jun 6 - Sat, Jun 13
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 Sat, Jun 6 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Sat, Jun 13, priced at $80 found 1 day ago
Delta
Tue, Jun 2 - Wed, Jun 17
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$122 Roundtrip, just found
$122
Roundtrip
just found
Select Delta flight, departing Tue, Jun 2 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jun 17, priced at $122 just found
Delta
Tue, Aug 11 - Tue, Aug 25
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$137 Roundtrip, found 1 day ago
$137
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Aug 11 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $137 found 1 day ago
Frontier Airlines
Sun, May 24 - Tue, Jun 9
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$174 Roundtrip, found 17 hours ago
$174
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Sun, May 24 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Tue, Jun 9, priced at $174 found 17 hours ago
Frontier Airlines
Sun, May 24 - Mon, Jun 8
ORF
Norfolk Intl.
STL
Lambert-St. Louis Intl.
$174 Roundtrip, found 18 hours ago
$174
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Sun, May 24 from Norfolk Intl. to Lambert-St. Louis Intl., returning Mon, Jun 8, priced at $174 found 18 hours ago
Frontier Airlines
Tue, May 5 - Sat, May 16
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$185 Roundtrip, found 5 days ago
$185
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Tue, May 5 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, May 16, priced at $185 found 5 days ago
Frontier Airlines
Tue, May 26 - Sat, May 30
ONT
Ontario Intl. Airport
STL
Lambert-St. Louis Intl.
$190 Roundtrip, found 1 hour ago
$190
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, May 26 from Ontario Intl. Airport to Lambert-St. Louis Intl., returning Sat, May 30, priced at $190 found 1 hour ago
United
Wed, Aug 12 - Tue, Aug 25
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$197 Roundtrip, found 1 day ago
$197
Roundtrip
found 1 day ago
Select United flight, departing Wed, Aug 12 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $197 found 1 day ago
American Airlines
Wed, Aug 12 - Tue, Aug 25
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$197 Roundtrip, found 1 day ago
$197
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Aug 12 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $197 found 1 day ago
Frontier Airlines
Tue, May 26 - Tue, Jun 9
LGA
LaGuardia
STL
Lambert-St. Louis Intl.
$212 Roundtrip, found 1 day ago
$212
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, May 26 from LaGuardia to Lambert-St. Louis Intl., returning Tue, Jun 9, priced at $212 found 1 day ago
Frontier Airlines
Sat, May 9 - Tue, May 26
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$215 Roundtrip, found 1 hour ago
$215
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, May 9 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Tue, May 26, priced at $215 found 1 hour ago
Delta
Tue, Jun 2 - Wed, Jun 10
DAL
Love Field
STL
Lambert-St. Louis Intl.
$287 Roundtrip, found 17 hours ago
$287
Roundtrip
found 17 hours ago
Select Delta flight, departing Tue, Jun 2 from Love Field to Lambert-St. Louis Intl., returning Wed, Jun 10, priced at $287 found 17 hours ago
Bargain Flight
Wed, May 6 - Sat, May 16
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$435 Roundtrip, found 7 hours ago
$435
Roundtrip
found 7 hours ago
Select Bargain Flight flight, departing Wed, May 6 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Sat, May 16, priced at $435 found 7 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 August, 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 15 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 $56, 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 $56 right now, why wait?

O'Fallon Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$56

Last Minute Hotel Deals in O'Fallon

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
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! (1,002 reviews)
Clean room, great staff. Good breakfast

Reviewed on Apr 29, 2026

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Drury Inn & Suites St. Louis O'Fallon, IL
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)
We did not stay at this property! Our plans change due to mother-in-law having a stroke. We notified the hotel 4 days in advance to cancel the reservation and they would not give us our money back. Expedia try to help but the hotel refused to refund the money.

Reviewed on Apr 30, 2026

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Quality Inn O'Fallon IL - St. Louis
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 (243 reviews)
Won’t stay again no pots or pans, plates utensils or coffee the stove didn’t work unless u turned on a timer they didn’t give dish soap or anything like most extended stays came and knocked on our door saying check out was at 11 but we had another night and when we said that they were like well let ...

Reviewed on May 1, 2026

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Welcome Suites
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! (945 reviews)
Is convenient and the beds are comfortable and it has a nice kitchenette. The customer service left a lot to be desired, and the whirlpool tub they charged a premium for did not work, and they were out of breakfast by 8:30 am. There was only one working ice machine, no vending machines, and the pool ...

Reviewed on Apr 30, 2026

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Sleep Inn O'Fallon near I-64
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 (140 reviews)
Room was dirty floor tub in the sofa

Reviewed on May 1, 2026

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Comfort Inn & Suites O'Fallon - St. Louis Area
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 ...
5.6/10 (472 reviews)
Toilet in room 104 runs intermittently. I reported it when we checked in and nothing was done to fix it. I reported again when we checked out.

Reviewed on Apr 25, 2026

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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. ...
8.4/10 Very Good! (597 reviews)
The room was clean and the staff were very nice and helpful. Parking was very good. Breakfast was good but options were limited.

Reviewed on Apr 26, 2026

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Holiday Inn Express & Suites O'Fallon/Shiloh by IHG
See all 1,413 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.