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O'Fallon

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O'Fallon Flights as Low as $120

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

Frontier Airlines
Thu, Sep 18 - Mon, Sep 22
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$120 Roundtrip, found 2 days ago
$120
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Sep 18 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Sep 22, priced at $120 found 2 days ago
Frontier Airlines
Thu, Aug 21 - Thu, Aug 28
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$128 Roundtrip, found 11 hours ago
$128
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Thu, Aug 21 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Thu, Aug 28, priced at $128 found 11 hours ago
Delta
Thu, Sep 18 - Mon, Sep 22
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$150 Roundtrip, found 2 days ago
$150
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Sep 18 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Sep 22, priced at $150 found 2 days ago
Delta
Sat, Sep 27 - Sat, Sep 27
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$174 Roundtrip, found 3 days ago
$174
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Sep 27 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Sat, Sep 27, priced at $174 found 3 days ago
United
Tue, Aug 26 - Sat, Aug 30
SFO
San Francisco Intl.
STL
Lambert-St. Louis Intl.
$176 Roundtrip, found 6 days ago
$176
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sat, Aug 30, priced at $176 found 6 days ago
Spirit Airlines
Mon, Aug 25 - Sun, Aug 31
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$176 Roundtrip, found 3 days ago
$176
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Mon, Aug 25 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sun, Aug 31, priced at $176 found 3 days ago
American Airlines
Wed, Oct 15 - Sat, Oct 18
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$177 Roundtrip, found 3 days ago
$177
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Oct 15 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Sat, Oct 18, priced at $177 found 3 days ago
United
Tue, Nov 18 - Mon, Nov 24
SAT
San Antonio Intl.
STL
Lambert-St. Louis Intl.
$188 Roundtrip, found 15 hours ago
$188
Roundtrip
found 15 hours ago
Select United flight, departing Tue, Nov 18 from San Antonio Intl. to Lambert-St. Louis Intl., returning Mon, Nov 24, priced at $188 found 15 hours ago
American Airlines
Tue, Sep 9 - Sat, Sep 13
CLT
Charlotte-Douglas Intl.
STL
Lambert-St. Louis Intl.
$193 Roundtrip, found 9 hours ago
$193
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Sep 9 from Charlotte-Douglas Intl. to Lambert-St. Louis Intl., returning Sat, Sep 13, priced at $193 found 9 hours ago
Delta
Tue, Oct 14 - Tue, Oct 21
DAL
Love Field
STL
Lambert-St. Louis Intl.
$197 Roundtrip, found 3 days ago
$197
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Oct 14 from Love Field to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $197 found 3 days ago
Hawaiian Airlines
Tue, Sep 30 - Wed, Oct 1
SFO
San Francisco Intl.
STL
Lambert-St. Louis Intl.
$206 Roundtrip, found 1 day ago
$206
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Sep 30 from San Francisco Intl. to Lambert-St. Louis Intl., returning Wed, Oct 1, priced at $206 found 1 day ago
Bargain Flight
Wed, Aug 20 - Sat, Aug 23
CLE
Hopkins Intl.
STL
Lambert-St. Louis Intl.
$210 Roundtrip, found 6 days ago
$210
Roundtrip
found 6 days ago
Select Bargain Flight flight, departing Wed, Aug 20 from Hopkins Intl. to Lambert-St. Louis Intl., returning Sat, Aug 23, priced at $210 found 6 days ago
Bargain Flight
Thu, Aug 28 - Tue, Sep 2
AUS
Austin-Bergstrom Intl.
STL
Lambert-St. Louis Intl.
$217 Roundtrip, found 23 hours ago
$217
Roundtrip
found 23 hours ago
Select Bargain Flight flight, departing Thu, Aug 28 from Austin-Bergstrom Intl. to Lambert-St. Louis Intl., returning Tue, Sep 2, priced at $217 found 23 hours ago
Alaska Airlines
Tue, Sep 30 - Thu, Oct 2
SFO
San Francisco Intl.
STL
Lambert-St. Louis Intl.
$218 Roundtrip, found 1 day ago
$218
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Sep 30 from San Francisco Intl. to Lambert-St. Louis Intl., returning Thu, Oct 2, priced at $218 found 1 day ago
Frontier Airlines
Mon, Aug 25 - Thu, Sep 4
EWR
Newark Liberty Intl. Airport
STL
Lambert-St. Louis Intl.
$222 Roundtrip, just found
$222
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Aug 25 from Newark Liberty Intl. Airport to Lambert-St. Louis Intl., returning Thu, Sep 4, priced at $222 just found
Bargain Flight
Sun, Aug 31 - Sat, Sep 6
PAE
Seattle Paine Field Intl. Airport
STL
Lambert-St. Louis Intl.
$676 Roundtrip, found 1 day ago
$676
Roundtrip
found 1 day ago
Select Bargain Flight flight, departing Sun, Aug 31 from Seattle Paine Field Intl. Airport to Lambert-St. Louis Intl., returning Sat, Sep 6, priced at $676 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 September, 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 13 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 Lambert-St. Louis Intl. 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 $120, 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 $120 right now, why wait?

O'Fallon Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$119

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 ...
7.4/10 Good! (1,006 reviews)
"Property was a solid choice"

Reviewed on Aug 8, 2025

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Super 8 by Wyndham O'Fallon
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
Stay at this 3-star business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
9.4/10 Exceptional! (1,001 reviews)
"Very clean the only thing was the bathroom vent didn’t work from the first night. That’s the only bad thing about the whole stay. Would stay again good prices."

Reviewed on Aug 7, 2025

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Drury Inn & Suites St. Louis O'Fallon, IL
La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis

La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis

3 out of 5
136 Regency Park, O'Fallon, IL
Stay at this 3-star business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the clean rooms in our reviews. ...
6/10 (1,003 reviews)
One Night Stay
"We are traveling across country on a budget so for the price this was an excellent stay. Comfortable bed, real shower. Here are some issues, if mitigated, would have uped my review to 4. Hallway carpet and room carpet need a good cleaning. Overhead light in room was burned out,, refrigerator cabinet ..."

Reviewed on Jul 31, 2025

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La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis
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! (803 reviews)
"Was ok housekeeping service was great"

Reviewed on Jul 23, 2025

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Sleep Inn O'Fallon near I-64
Hilton Garden Inn St. Louis Shiloh/O'Fallon IL

Hilton Garden Inn St. Louis Shiloh/O'Fallon IL

3 out of 5
360 Regency Park Drive, O'Fallon, IL
Stay at this 3-star business-friendly hotel in O'Fallon. Enjoy free WiFi, free parking, and room service. Our guests praise the helpful staff in our reviews. ...
8/10 Very Good! (898 reviews)
"Horrible breakfast experience"

Reviewed on Jul 31, 2025

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Hilton Garden Inn St. Louis Shiloh/O'Fallon IL
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 ...
5.4/10 (391 reviews)
"It was an ok stay,breakfast wasntcall that great the pricing wasnt to bad,fridge ran and dripped all night,bed was comfortable...price wasnt to bad,overall it was a decent hotel"

Reviewed on Jun 29, 2025

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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
Stay at this 4-star business-friendly hotel in St. Louis. Enjoy free WiFi, 3 restaurants, and 2 bars/lounges. Our guests praise the helpful staff and the clean ...
8.4/10 Very Good! (3,961 reviews)
"Always love the Hyatt!"

Reviewed on Aug 11, 2025

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Hyatt Regency St. Louis at The Arch
Drury Plaza Hotel St. Louis at the Arch

Drury Plaza Hotel St. Louis at the Arch

3 out of 5
2 South 4th Street, St. Louis, MO
Stay at this 3-star business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and a fitness center. Our guests praise the breakfast and the pool ...
9.4/10 Exceptional! (2,937 reviews)
10+
"Awesome stay! One of my favorite hotels I have ever stayed at. From the comfortable rooms all the way to the free drinks. I couldn't of asked for a better stay! The lady that checked us in was informative and kind. We will definitely choose this hotel again on our next visit to St. Louis."

Reviewed on Aug 12, 2025

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Drury Plaza Hotel St. Louis at the Arch
See all 1,304 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.