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O'Fallon

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O'Fallon Flights as Low as $58

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

Frontier Airlines
Mon, Feb 16 - Fri, Mar 6
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$58 Roundtrip, just found
$58
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Feb 16 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Mar 6, priced at $58 just found
Frontier Airlines
Tue, Mar 24 - Tue, Apr 7
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$62 Roundtrip, found 8 hours ago
$62
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Tue, Mar 24 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Apr 7, priced at $62 found 8 hours ago
Frontier Airlines
Wed, Mar 11 - Mon, Mar 23
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$65 Roundtrip, just found
$65
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Mar 11 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Mar 23, priced at $65 just found
Frontier Airlines
Tue, Mar 31 - Thu, Apr 16
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$73 Roundtrip, just found
$73
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Mar 31 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Thu, Apr 16, priced at $73 just found
Frontier Airlines
Tue, Feb 24 - Sat, Feb 28
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$100 Roundtrip, found 4 days ago
$100
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, Feb 24 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, Feb 28, priced at $100 found 4 days ago
Delta
Tue, Apr 21 - Tue, Apr 28
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$117 Roundtrip, found 7 hours ago
$117
Roundtrip
found 7 hours ago
Select Delta flight, departing Tue, Apr 21 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Tue, Apr 28, priced at $117 found 7 hours ago
Frontier Airlines
Wed, Apr 8 - Mon, Apr 13
CLT
Charlotte-Douglas Intl.
STL
Lambert-St. Louis Intl.
$160 Roundtrip, found 8 hours ago
$160
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Wed, Apr 8 from Charlotte-Douglas Intl. to Lambert-St. Louis Intl., returning Mon, Apr 13, priced at $160 found 8 hours ago
Frontier Airlines
Thu, Apr 16 - Thu, May 7
LGA
LaGuardia
STL
Lambert-St. Louis Intl.
$160 Roundtrip, found 7 hours ago
$160
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, Apr 16 from LaGuardia to Lambert-St. Louis Intl., returning Thu, May 7, priced at $160 found 7 hours ago
Frontier Airlines
Tue, Apr 14 - Thu, Apr 16
EWR
Newark Liberty Intl. Airport
STL
Lambert-St. Louis Intl.
$160 Roundtrip, just found
$160
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 14 from Newark Liberty Intl. Airport to Lambert-St. Louis Intl., returning Thu, Apr 16, priced at $160 just found
American Airlines
Sat, Apr 4 - Tue, Apr 14
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$180 Roundtrip, just found
$180
Roundtrip
just found
Select American Airlines flight, departing Sat, Apr 4 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Tue, Apr 14, priced at $180 just found
Frontier Airlines
Tue, Feb 10 - Mon, Feb 23
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$181 Roundtrip, found 10 hours ago
$181
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Tue, Feb 10 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Mon, Feb 23, priced at $181 found 10 hours ago
Frontier Airlines
Tue, Mar 10 - Wed, Mar 11
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$192 Roundtrip, just found
$192
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Mar 10 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Wed, Mar 11, priced at $192 just found
United
Sat, Apr 4 - Tue, Apr 14
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$197 Roundtrip, just found
$197
Roundtrip
just found
Select United flight, departing Sat, Apr 4 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Tue, Apr 14, priced at $197 just found
Frontier Airlines
Sat, Feb 14 - Sat, Feb 21
ONT
Los Angeles - Ontario Intl.
STL
Lambert-St. Louis Intl.
$207 Roundtrip, found 4 days ago
$207
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sat, Feb 14 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Feb 21, priced at $207 found 4 days ago
Alaska Airlines
Wed, Feb 25 - Tue, Mar 10
ONT
Los Angeles - Ontario Intl.
STL
Lambert-St. Louis Intl.
$268 Roundtrip, found 2 hours ago
$268
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Wed, Feb 25 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Tue, Mar 10, priced at $268 found 2 hours ago
Delta
Tue, Feb 17 - Tue, Feb 24
DAL
Love Field
STL
Lambert-St. Louis Intl.
$326 Roundtrip, found 8 hours ago
$326
Roundtrip
found 8 hours ago
Select Delta flight, departing Tue, Feb 17 from Love Field to Lambert-St. Louis Intl., returning Tue, Feb 24, priced at $326 found 8 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 February, 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 Spirit of 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 $58, 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 $58 right now, why wait?

O'Fallon Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$58

Last Minute Hotel Deals in O'Fallon

Sleep Inn & Suites O'Fallon MO - Technology Drive

Sleep Inn & Suites O'Fallon MO - Technology Drive

2.5 out of 5
1147 Technology Drive O'Fallon MO
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 ...
8.8/10 Excellent! (1,002 reviews)
A very nice one night stay on our roadtrip! The staff are very friendly and available, the place was clean, quiet and safe and the breakfast was fresh and hot. Would definitely stay here again.

Reviewed on Jan 25, 2026

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Sleep Inn & Suites O'Fallon MO - Technology Drive
Comfort Inn & Suites St. Louis - O'Fallon

Comfort Inn & Suites St. Louis - O'Fallon

2.5 out of 5
100 Comfort Inn Ct O'Fallon MO
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)
Its an older hotel that needs some love. But definitely clean. Bathroom and room was spotless. Even the corners. Nice hot breakfast. Great value. Pool very small. But definitely not a deal breaker. Would definitely stay again. Check in was fast!

Reviewed on Jan 19, 2026

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Comfort Inn & Suites St. Louis - O'Fallon
Staybridge Suites O'Fallon Chesterfield by IHG

Staybridge Suites O'Fallon Chesterfield by IHG

3 out of 5
1155 Technology Drive O'Fallon MO
Stay at this hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. Popular attractions Weldon ...
8.4/10 Very Good! (414 reviews)
Very friendly staff and accommodations. We were given a welcome bag when we arrived and one when we left. It was awesome!

Reviewed on Jan 30, 2026

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Staybridge Suites O'Fallon Chesterfield by IHG
Holiday Inn Express St. Louis West - O'Fallon by IHG

Holiday Inn Express St. Louis West - O'Fallon by IHG

2.5 out of 5
1175 Technology Dr O'Fallon MO
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! (861 reviews)
Service, cleanliness and breakfast were all very agreeable

Reviewed on Jan 24, 2026

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Holiday Inn Express St. Louis West - O'Fallon by IHG
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! (1,087 reviews)
Clean room, quiet, hot tub, and close to restaurants

Reviewed on Jan 25, 2026

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

Pear Tree Inn St. Louis Airport

2.5 out of 5
10810 Pear Tree Ln St. Ann MO
Book a stay at this business-friendly hotel in St. Ann. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
9.2/10 Wonderful! (2,814 reviews)
All the above!!

Reviewed on Feb 1, 2026

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Pear Tree Inn St. Louis Airport
Hilton St. Louis Airport

Hilton St. Louis Airport

3.5 out of 5
10330 Natural Bridge Rd St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy 2 restaurants, breakfast (surcharge), and a free airport shuttle. Our guests praise the helpful ...
7.6/10 Good! (1,011 reviews)
Quiet and spacious room stood out. What didn’t, was the lack of fridge.

Reviewed on Jan 24, 2026

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Hilton St. Louis Airport
The Wildwood Hotel

The Wildwood Hotel

3.5 out of 5
2801 Fountain Pl Wildwood MO
Book a stay at this business-friendly hotel in Wildwood. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the convenient ...
9.2/10 Wonderful! (1,629 reviews)
Clean room and great breakfast

Reviewed on Feb 2, 2026

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The Wildwood Hotel
See all 956 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.