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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
Thu, Aug 6 - Fri, Aug 7
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 Thu, Aug 6 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Aug 7, priced at $56 found 1 day ago
Frontier Airlines
Tue, Aug 4 - Tue, Aug 4
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$58 Roundtrip, found 7 hours ago
$58
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Tue, Aug 4 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Aug 4, priced at $58 found 7 hours ago
Frontier Airlines
Tue, Jul 28 - Fri, Jul 31
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$66 Roundtrip, found 1 day ago
$66
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jul 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Jul 31, priced at $66 found 1 day ago
Frontier Airlines
Fri, Jul 31 - Mon, Aug 3
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$78 Roundtrip, found 2 days ago
$78
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Jul 31 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Aug 3, priced at $78 found 2 days ago
Delta
Tue, Jul 28 - Sat, Aug 8
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$87 Roundtrip, found 5 days ago
$87
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Jul 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 8, priced at $87 found 5 days ago
Delta
Tue, Sep 15 - Tue, Sep 15
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$112 Roundtrip, found 3 hours ago
$112
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Sep 15 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Sep 15, priced at $112 found 3 hours ago
Frontier Airlines
Thu, Oct 1 - Mon, Oct 5
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$130 Roundtrip, found 23 hours ago
$130
Roundtrip
found 23 hours ago
Select Frontier Airlines flight, departing Thu, Oct 1 from Denver Intl. to Lambert-St. Louis Intl., returning Mon, Oct 5, priced at $130 found 23 hours ago
American Airlines
Tue, Sep 15 - Tue, Sep 15
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$159 Roundtrip, found 3 hours ago
$159
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Tue, Sep 15 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Sep 15, priced at $159 found 3 hours ago
Bargain Flight
Wed, Jul 29 - Tue, Aug 11
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$195 Roundtrip, found 6 days ago
$195
Roundtrip
found 6 days ago
Select Bargain Flight flight, departing Wed, Jul 29 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Tue, Aug 11, priced at $195 found 6 days ago
Frontier Airlines
Tue, Nov 10 - Tue, Nov 17
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$206 Roundtrip, found 18 hours ago
$206
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Tue, Nov 10 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Tue, Nov 17, priced at $206 found 18 hours ago
Delta
Tue, Oct 13 - Tue, Oct 20
CLT
Charlotte-Douglas Intl.
STL
Lambert-St. Louis Intl.
$209 Roundtrip, found 1 day ago
$209
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Oct 13 from Charlotte-Douglas Intl. to Lambert-St. Louis Intl., returning Tue, Oct 20, priced at $209 found 1 day ago
Frontier Airlines
Tue, Sep 1 - Tue, Sep 15
TPA
Tampa Intl.
STL
Lambert-St. Louis Intl.
$215 Roundtrip, found 1 day ago
$215
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Sep 1 from Tampa Intl. to Lambert-St. Louis Intl., returning Tue, Sep 15, priced at $215 found 1 day ago
Alaska Airlines
Tue, Sep 1 - Tue, Sep 8
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$307 Roundtrip, found 1 day ago
$307
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Sep 1 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Tue, Sep 8, priced at $307 found 1 day ago
Delta
Thu, Jul 30 - Mon, Aug 17
SCL
Arturo Merino Benitez
STL
Lambert-St. Louis Intl.
$875 Roundtrip, found 1 day ago
$875
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jul 30 from Arturo Merino Benitez to Lambert-St. Louis Intl., returning Mon, Aug 17, priced at $875 found 1 day ago
LATAM Airlines Group
Tue, Jul 14 - Tue, Jul 21
SCL
Arturo Merino Benitez
STL
Lambert-St. Louis Intl.
$906 Roundtrip, found 1 day ago
$906
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Tue, Jul 14 from Arturo Merino Benitez to Lambert-St. Louis Intl., returning Tue, Jul 21, priced at $906 found 1 day ago
Copa
Mon, Jul 13 - Fri, Jul 24
SCL
Arturo Merino Benitez
STL
Lambert-St. Louis Intl.
$2,924 Roundtrip, found 1 day ago
$2,924
Roundtrip
found 1 day ago
Select Copa flight, departing Mon, Jul 13 from Arturo Merino Benitez to Lambert-St. Louis Intl., returning Fri, Jul 24, priced at $2,924 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 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 MidAmerica-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 $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 ...
6.6/10 (1,039 reviews)
"staff was very unfriendly. I asked for a accessible room - the "bench" for the tub was on the floor - with the guest expected to lift it and put in the tub. A handicapped person?? ridiculous. And the front door was not accessible at all - trying to get into the lobby with luggage, and a very heavy ..."

Reviewed on Jul 9, 2026

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Super 8 by Wyndham O'Fallon
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 ...
5.8/10 (290 reviews)
"More towel availability"

Reviewed on Jul 3, 2026

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Welcome Suites
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! (1,009 reviews)
"The free meals are always a plus and the staff were very attentive!"

Reviewed on Jul 5, 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! (1,006 reviews)
"My room was clean, facility was clean and the hallway had a fresh fragrance."

Reviewed on Jul 8, 2026

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Quality Inn O'Fallon IL - St. Louis
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 (161 reviews)
"Very nice and clean the room"

Reviewed on Jul 9, 2026

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Comfort Inn & Suites O'Fallon - St. Louis Area
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! (981 reviews)
"As soon as we walked into the lobby, the place stunk horribly bad. There was only a shower and not bath tub in the room. I had booked two rooms which one room had two adults and one child and the other room had one adult and two children. They didn’t put us on the same floor. We were on different ..."

Reviewed on Jul 7, 2026

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Sleep Inn O'Fallon near I-64
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 ...
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Baymont by Wyndham O'Fallon St. Louis Area
Hyatt Regency St. Louis at The Arch

Hyatt Regency St. Louis at The Arch

4 out of 5
315 Chestnut St St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free WiFi, 3 restaurants, and 2 bars/lounges. Our guests praise the helpful staff and the clean ...
8.6/10 Excellent! (4,204 reviews)
"Great stay with amazing view of the Arch"

Reviewed on Jul 9, 2026

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Hyatt Regency St. Louis at The Arch
See all 1,492 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.