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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
Tue, May 19 - Wed, May 27
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$58 Roundtrip, found 2 hours ago
$58
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, May 19 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, May 27, priced at $58 found 2 hours ago
Frontier Airlines
Mon, May 18 - Sat, May 23
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$80 Roundtrip, found 9 hours ago
$80
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Mon, May 18 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, May 23, priced at $80 found 9 hours ago
Frontier Airlines
Tue, May 26 - Wed, Jun 10
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$97 Roundtrip, found 2 days ago
$97
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, May 26 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jun 10, priced at $97 found 2 days ago
Frontier Airlines
Thu, May 28 - Sat, May 30
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$99 Roundtrip, found 3 days ago
$99
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, May 28 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Sat, May 30, priced at $99 found 3 days ago
Frontier Airlines
Sat, Jun 6 - Sat, Jun 13
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$100 Roundtrip, found 2 days ago
$100
Roundtrip
found 2 days 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 $100 found 2 days ago
Frontier Airlines
Tue, May 19 - Wed, May 20
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$154 Roundtrip, found 3 hours ago
$154
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Tue, May 19 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Wed, May 20, priced at $154 found 3 hours ago
Frontier Airlines
Sat, May 9 - Thu, May 14
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$158 Roundtrip, just found
$158
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 9 from Denver Intl. to Lambert-St. Louis Intl., returning Thu, May 14, priced at $158 just found
Delta
Wed, Jun 3 - Wed, Jun 3
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$160 Roundtrip, found 17 hours ago
$160
Roundtrip
found 17 hours ago
Select Delta flight, departing Wed, Jun 3 from O'Hare Intl. to Lambert-St. Louis Intl., returning Wed, Jun 3, priced at $160 found 17 hours ago
Frontier Airlines
Tue, May 26 - Sat, May 30
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$174 Roundtrip, found 2 hours ago
$174
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, May 26 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sat, May 30, priced at $174 found 2 hours ago
United
Wed, Aug 12 - Tue, Aug 25
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$197 Roundtrip, found 4 hours ago
$197
Roundtrip
found 4 hours 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 4 hours ago
American Airlines
Wed, Aug 12 - Tue, Aug 25
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$197 Roundtrip, found 4 hours ago
$197
Roundtrip
found 4 hours 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 4 hours ago
Frontier Airlines
Sat, May 9 - Tue, May 26
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$210 Roundtrip, found 1 day ago
$210
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, May 9 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Tue, May 26, priced at $210 found 1 day ago
American Airlines
Tue, May 12 - Sat, May 23
DCA
Ronald Reagan Washington National
STL
Lambert-St. Louis Intl.
$222 Roundtrip, found 3 days ago
$222
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, May 12 from Ronald Reagan Washington National to Lambert-St. Louis Intl., returning Sat, May 23, priced at $222 found 3 days ago
Frontier Airlines
Sat, May 16 - Tue, May 19
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$230 Roundtrip, found 4 hours ago
$230
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, May 16 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Tue, May 19, priced at $230 found 4 hours ago
Delta
Fri, Jun 5 - Wed, Jun 10
DAL
Love Field
STL
Lambert-St. Louis Intl.
$243 Roundtrip, found 3 days ago
$243
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Jun 5 from Love Field to Lambert-St. Louis Intl., returning Wed, Jun 10, priced at $243 found 3 days ago
Alaska Airlines
Wed, May 6 - Fri, May 29
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$443 Roundtrip, found 2 days ago
$443
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, May 6 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Fri, May 29, priced at $443 found 2 days 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 May, 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
$57

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 ...
9/10 Wonderful! (1,005 reviews)
Room was clean, but humid when first walking in. Desk siding was coming off in some areas. Wall outlets were scarce. Breakfast was not great, even for hotel breakfast.

Reviewed on Apr 26, 2026

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Sleep Inn & Suites O'Fallon MO - Technology Drive
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. ...
8.6/10 Excellent! (915 reviews)
We asked for handicap accessible, but this hotel does not understand the requirements for handicap access means a wheelchair should be able to access the shower and slide under the sink. Plus handicap should be on the first floor for emergencies.

Reviewed on Apr 22, 2026

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Holiday Inn Express St. Louis West - O'Fallon by IHG
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 ...
7.6/10 Good! (1,001 reviews)
👍

Reviewed on Apr 23, 2026

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Comfort Inn & Suites St. Louis - O'Fallon
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 ...
8/10 Very Good! (1,236 reviews)
The breakfast was hot, fresh and plenty. The staf was helpful and kind. Mrs Nikki qas very helpful and welcoming. She made checking in and out stress free and fast.

Reviewed on Apr 26, 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 ...
9.4/10 Exceptional! (2,954 reviews)
We stayed for a night. Staff were very friendly and rooms were clean. Gated parking lot is a plus. Kids enjoyed the breakfast and popcorn. We didnt stay for Happy Hour, but that seemed like a nice treat.

Reviewed on Apr 26, 2026

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Pear Tree Inn St. Louis Airport
Hollywood Casino & Hotel St. Louis

Hollywood Casino & Hotel St. Louis

3.5 out of 5
777 Casino Center Drive Maryland Heights MO
Book a stay at this business-friendly hotel in Maryland Heights. Enjoy free parking, 7 restaurants, and a casino. Our guests praise the helpful staff and the ...
8.4/10 Very Good! (2,187 reviews)
A little on the higher side for the area and amenities but it is a resort. The place was clean and the staff was very welcoming. Would stay again.

Reviewed on Apr 26, 2026

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Hollywood Casino & Hotel St. Louis
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! (1,630 reviews)
Friendly staff and comfortable hotel

Reviewed on Apr 26, 2026

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The Wildwood Hotel
Motel 6 Hazelwood, MO

Motel 6 Hazelwood, MO

2 out of 5
5781 Campus Ct Hazelwood MO
Stay at this motel in Hazelwood. Enjoy free WiFi, free parking, and a 24-hour front desk. Our guests praise the clean rooms in our reviews. Popular attractions ...
8.6/10 Excellent! (1,956 reviews)
Yes perfect thanks for such a comfortable stay

Reviewed on Apr 26, 2026

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Motel 6 Hazelwood, MO
See all 974 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.