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O'Fallon

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O'Fallon Flights as Low as $63

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

Frontier Airlines
Wed, Jul 8 - Wed, Jul 15
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$63 Roundtrip, found 13 hours ago
$63
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Wed, Jul 8 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jul 15, priced at $63 found 13 hours ago
Frontier Airlines
Wed, Jul 8 - Fri, Jul 17
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$73 Roundtrip, found 13 hours ago
$73
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Wed, Jul 8 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Jul 17, priced at $73 found 13 hours ago
Frontier Airlines
Tue, Jul 28 - Sat, Aug 8
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$76 Roundtrip, found 13 hours ago
$76
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Tue, Jul 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 8, priced at $76 found 13 hours ago
Delta
Tue, Jul 28 - Sat, Aug 8
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$117 Roundtrip, found 13 hours ago
$117
Roundtrip
found 13 hours ago
Select Delta flight, departing Tue, Jul 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 8, priced at $117 found 13 hours ago
United
Tue, Jul 28 - Sat, Aug 8
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$197 Roundtrip, found 13 hours ago
$197
Roundtrip
found 13 hours ago
Select United flight, departing Tue, Jul 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 8, priced at $197 found 13 hours ago
American Airlines
Tue, Jul 28 - Sat, Aug 8
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$197 Roundtrip, found 13 hours ago
$197
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Tue, Jul 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 8, priced at $197 found 13 hours ago
American Airlines
Wed, Aug 12 - Sat, Aug 15
CLT
Charlotte-Douglas Intl.
STL
Lambert-St. Louis Intl.
$202 Roundtrip, found 13 hours ago
$202
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Aug 12 from Charlotte-Douglas Intl. to Lambert-St. Louis Intl., returning Sat, Aug 15, priced at $202 found 13 hours ago
Frontier Airlines
Tue, Sep 1 - Tue, Sep 15
TPA
Tampa Intl.
STL
Lambert-St. Louis Intl.
$210 Roundtrip, found 13 hours ago
$210
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Tue, Sep 1 from Tampa Intl. to Lambert-St. Louis Intl., returning Tue, Sep 15, priced at $210 found 13 hours ago
Frontier Airlines
Wed, Aug 5 - Tue, Aug 18
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$226 Roundtrip, found 1 day ago
$226
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Aug 5 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Tue, Aug 18, priced at $226 found 1 day ago
Frontier Airlines
Wed, Aug 5 - Tue, Aug 11
BDL
Bradley Intl.
STL
Lambert-St. Louis Intl.
$226 Roundtrip, found 1 day ago
$226
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Aug 5 from Bradley Intl. to Lambert-St. Louis Intl., returning Tue, Aug 11, priced at $226 found 1 day ago
Frontier Airlines
Thu, Aug 13 - Tue, Aug 25
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$268 Roundtrip, found 21 hours ago
$268
Roundtrip
found 21 hours ago
Select Frontier Airlines flight, departing Thu, Aug 13 from Logan Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $268 found 21 hours ago
American Airlines
Wed, Sep 2 - Tue, Sep 22
EYW
Key West Intl.
STL
Lambert-St. Louis Intl.
$293 Roundtrip, found 4 days ago
$293
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 2 from Key West Intl. to Lambert-St. Louis Intl., returning Tue, Sep 22, priced at $293 found 4 days ago
American Airlines
Wed, Aug 12 - Tue, Aug 25
BTR
Baton Rouge Metropolitan
STL
Lambert-St. Louis Intl.
$305 Roundtrip, found 4 days ago
$305
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Aug 12 from Baton Rouge Metropolitan to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $305 found 4 days ago
Frontier Airlines
Thu, Jul 9 - Wed, Jul 15
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$308 Roundtrip, found 4 days ago
$308
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Jul 9 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Wed, Jul 15, priced at $308 found 4 days ago
Delta
Mon, Aug 24 - Tue, Sep 1
BIL
Logan Intl.
STL
Lambert-St. Louis Intl.
$319 Roundtrip, found 22 hours ago
$319
Roundtrip
found 22 hours ago
Select Delta flight, departing Mon, Aug 24 from Logan Intl. to Lambert-St. Louis Intl., returning Tue, Sep 1, priced at $319 found 22 hours ago
Alaska Airlines
Fri, Aug 21 - Sun, Aug 30
BIL
Logan Intl.
STL
Lambert-St. Louis Intl.
$637 Roundtrip, found 22 hours ago
$637
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Fri, Aug 21 from Logan Intl. to Lambert-St. Louis Intl., returning Sun, Aug 30, priced at $637 found 22 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 July, 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 $63, 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 $63 right now, why wait?

O'Fallon Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$62

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! (1,023 reviews)
"Pool was dirty. Lots of ants in the room."

Reviewed on Jun 25, 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! (940 reviews)
"Staff was friendly and helpful. Room was common areas were clean. Breakfast was great. Nice selection."

Reviewed on Jun 20, 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! (1,005 reviews)
"Clean beds, breakfast was okay. The room smelled of bleach and wet socks. The room was handicap accessible, so the water must have run into the carpet from the bathroom at some point causing an odor."

Reviewed on Jun 25, 2026

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Comfort Inn & Suites St. Louis - O'Fallon
Residence Inn by Marriott O'Fallon

Residence Inn by Marriott O'Fallon

3 out of 5
101 Progress Point Ct. O'Fallon MO
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Popular attractions Golf Headquarters and Missouri ...
8.4/10 Very Good! (477 reviews)
"One night stay but a few hiccups. Door into entry of room was completely filthy, look like the exorcist happened outside. Inside the room was fine other than very dated furniture and paint/wallpaper. No extra pillows or blankets for the pullout bed. The staff solved that ASAP! Great job there! Carpet ..."

Reviewed on Jun 22, 2026

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Residence Inn by Marriott 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 ...
8.6/10 Excellent! (454 reviews)
"It did take quite an effort to get the shower control to work properly. almost gave up."

Reviewed on Jun 25, 2026

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Staybridge Suites O'Fallon Chesterfield by IHG
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 ...
8.6/10 Excellent! (2,192 reviews)
"Everyone there was Great!"

Reviewed on Jun 26, 2026

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Hollywood Casino & Hotel St. Louis
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! (3,038 reviews)
"Great place to stay"

Reviewed on Jun 26, 2026

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Pear Tree Inn St. Louis Airport
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 ...
8.4/10 Very Good! (1,101 reviews)
"We ask for a telephone in room. We were told it would be sent up. We never received it. It took the maintenance crew 2 days to correct the closet door. We were told the didn't want to go in the room without us being there. We left the room giving them plenty of time to complete the task."

Reviewed on Jun 25, 2026

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Renaissance St. Louis Airport Hotel
See all 975 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.