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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, Jun 2 - Tue, Jun 9
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$58 Roundtrip, found 22 hours ago
$58
Roundtrip
found 22 hours ago
Select Frontier Airlines flight, departing Tue, Jun 2 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Tue, Jun 9, priced at $58 found 22 hours ago
Frontier Airlines
Sat, May 16 - Sat, May 30
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$70 Roundtrip, found 5 hours ago
$70
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sat, May 16 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, May 30, priced at $70 found 5 hours ago
Frontier Airlines
Sat, May 30 - Wed, Jun 10
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$78 Roundtrip, found 1 day ago
$78
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, May 30 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Wed, Jun 10, priced at $78 found 1 day ago
Frontier Airlines
Sat, May 16 - Wed, May 27
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$80 Roundtrip, found 5 hours ago
$80
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sat, May 16 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, May 27, priced at $80 found 5 hours ago
Frontier Airlines
Sun, May 10 - Mon, May 11
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$154 Roundtrip, found 6 days ago
$154
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sun, May 10 from Denver Intl. to Lambert-St. Louis Intl., returning Mon, May 11, priced at $154 found 6 days ago
Frontier Airlines
Sun, May 10 - Wed, May 13
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$174 Roundtrip, found 2 days ago
$174
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, May 10 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Wed, May 13, priced at $174 found 2 days ago
Delta
Wed, Aug 12 - Tue, Aug 25
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$177 Roundtrip, found 4 hours ago
$177
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Aug 12 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $177 found 4 hours ago
Frontier Airlines
Tue, May 26 - Sat, May 30
ONT
Los Angeles - Ontario Intl.
STL
Lambert-St. Louis Intl.
$190 Roundtrip, found 1 day ago
$190
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, May 26 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, May 30, priced at $190 found 1 day ago
Delta
Tue, Jun 9 - Wed, Jun 10
DAL
Love Field
STL
Lambert-St. Louis Intl.
$195 Roundtrip, found 1 day ago
$195
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jun 9 from Love Field to Lambert-St. Louis Intl., returning Wed, Jun 10, priced at $195 found 1 day 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 - Thu, May 14
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$206 Roundtrip, found 23 hours ago
$206
Roundtrip
found 23 hours ago
Select Frontier Airlines flight, departing Sat, May 9 from O'Hare Intl. to Lambert-St. Louis Intl., returning Thu, May 14, priced at $206 found 23 hours ago
Delta
Tue, Aug 11 - Tue, Aug 25
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$215 Roundtrip, found 1 day ago
$215
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 $215 found 1 day ago
Frontier Airlines
Sat, May 9 - Tue, May 26
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$220 Roundtrip, found 1 day ago
$220
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 $220 found 1 day ago
Frontier Airlines
Tue, May 26 - Tue, Jun 9
LGA
LaGuardia
STL
Lambert-St. Louis Intl.
$237 Roundtrip, found 5 hours ago
$237
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Tue, May 26 from LaGuardia to Lambert-St. Louis Intl., returning Tue, Jun 9, priced at $237 found 5 hours ago
Alaska Airlines
Tue, May 26 - Sat, May 30
ONT
Los Angeles - Ontario Intl.
STL
Lambert-St. Louis Intl.
$363 Roundtrip, found 1 day ago
$363
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, May 26 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, May 30, priced at $363 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 June, 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! (1,001 reviews)
Yes

Reviewed on Apr 23, 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! (914 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! (1,230 reviews)
Staff at check-in was very friendly and helpful.

Reviewed on Apr 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 ...
9.4/10 Exceptional! (2,947 reviews)
Staff were unusually gracious and friendly. Thank you!

Reviewed on Apr 23, 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! (2,185 reviews)
We were looking for a nice easy and safe stay in the St Louis area. This place was it. Staff is great food choices excellent and at no point did I feel like I was going to be stabbed. My best trip to St Louis yet!

Reviewed on Apr 23, 2026

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Hollywood Casino & Hotel St. Louis
Renaissance St. Louis Airport Hotel

Renaissance St. Louis Airport Hotel

4 out of 5
9801 Natural Bridge Road St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy an outdoor pool, breakfast (surcharge), and a free airport shuttle. Our guests praise the helpful ...
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Renaissance St. Louis Airport 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! (1,947 reviews)
Great value for the price. Would stay here again if ever in town.

Reviewed on Apr 24, 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.