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O'Fallon

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O'Fallon Flights as Low as $76

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

Frontier Airlines
Thu, Aug 13 - Sun, Aug 23
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$76 Roundtrip, found 4 hours ago
$76
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Aug 13 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sun, Aug 23, priced at $76 found 4 hours ago
Frontier Airlines
Tue, Jul 14 - Tue, Jul 14
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$78 Roundtrip, found 4 hours ago
$78
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Tue, Jul 14 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Jul 14, priced at $78 found 4 hours ago
Delta
Tue, Jul 28 - Sat, Aug 8
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$97 Roundtrip, found 4 hours ago
$97
Roundtrip
found 4 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 $97 found 4 hours ago
Frontier Airlines
Wed, Jul 22 - Sat, Aug 8
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$116 Roundtrip, found 9 hours ago
$116
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Wed, Jul 22 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, Aug 8, priced at $116 found 9 hours ago
Delta
Tue, Jul 28 - Sat, Aug 8
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$117 Roundtrip, found 4 hours ago
$117
Roundtrip
found 4 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 4 hours ago
American Airlines
Wed, Jul 29 - Tue, Aug 4
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$120 Roundtrip, found 4 hours ago
$120
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Jul 29 from O'Hare Intl. to Lambert-St. Louis Intl., returning Tue, Aug 4, priced at $120 found 4 hours ago
United
Wed, Jul 29 - Tue, Aug 4
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$120 Roundtrip, found 4 hours ago
$120
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Jul 29 from O'Hare Intl. to Lambert-St. Louis Intl., returning Tue, Aug 4, priced at $120 found 4 hours ago
Delta
Tue, Aug 11 - Sat, Aug 22
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$182 Roundtrip, found 4 hours ago
$182
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Aug 11 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Sat, Aug 22, priced at $182 found 4 hours ago
Bargain Flight
Wed, Jul 8 - Tue, Jul 14
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$215 Roundtrip, found 9 hours ago
$215
Roundtrip
found 9 hours ago
Select Bargain Flight flight, departing Wed, Jul 8 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Tue, Jul 14, priced at $215 found 9 hours ago
Bargain Flight
Tue, Nov 3 - Wed, Nov 11
LGA
LaGuardia
STL
Lambert-St. Louis Intl.
$245 Roundtrip, found 4 hours ago
$245
Roundtrip
found 4 hours ago
Select Bargain Flight flight, departing Tue, Nov 3 from LaGuardia to Lambert-St. Louis Intl., returning Wed, Nov 11, priced at $245 found 4 hours ago
Delta
Sat, Oct 17 - Tue, Oct 20
DAL
Love Field
STL
Lambert-St. Louis Intl.
$257 Roundtrip, found 3 hours ago
$257
Roundtrip
found 3 hours ago
Select Delta flight, departing Sat, Oct 17 from Love Field to Lambert-St. Louis Intl., returning Tue, Oct 20, priced at $257 found 3 hours ago
Bargain Flight
Thu, Aug 27 - Sat, Sep 12
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$270 Roundtrip, found 4 hours ago
$270
Roundtrip
found 4 hours ago
Select Bargain Flight flight, departing Thu, Aug 27 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Sat, Sep 12, priced at $270 found 4 hours ago
Bargain Flight
Tue, Jun 30 - Sat, Jul 4
RDU
Raleigh - Durham Intl.
STL
Lambert-St. Louis Intl.
$295 Roundtrip, found 4 hours ago
$295
Roundtrip
found 4 hours ago
Select Bargain Flight flight, departing Tue, Jun 30 from Raleigh - Durham Intl. to Lambert-St. Louis Intl., returning Sat, Jul 4, priced at $295 found 4 hours ago
Alaska Airlines
Thu, Aug 27 - Sat, Sep 12
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$386 Roundtrip, found 4 hours ago
$386
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Thu, Aug 27 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Sat, Sep 12, priced at $386 found 4 hours ago
Alaska Airlines
Thu, Aug 27 - Sat, Sep 12
PAE
Seattle Paine Field Intl. Airport
STL
Lambert-St. Louis Intl.
$402 Roundtrip, found 4 hours ago
$402
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Thu, Aug 27 from Seattle Paine Field Intl. Airport to Lambert-St. Louis Intl., returning Sat, Sep 12, priced at $402 found 4 hours ago
Delta
Thu, Jun 25 - Sun, Jun 28
GSO
Piedmont Triad Intl.
STL
Lambert-St. Louis Intl.
$521 Roundtrip, found 4 hours ago
$521
Roundtrip
found 4 hours ago
Select Delta flight, departing Thu, Jun 25 from Piedmont Triad Intl. to Lambert-St. Louis Intl., returning Sun, Jun 28, priced at $521 found 4 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 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 12 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 $76, 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 $76 right now, why wait?

O'Fallon Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$76

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 ...
6.8/10 (1,013 reviews)
"Bed bugs need I say more."

Reviewed on Jun 24, 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 ...
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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! (1,001 reviews)
"Decent place to stay we were on a fast country trip and it was convenient"

Reviewed on Jun 24, 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! (1,002 reviews)
"The room was nice but originally they had us on the 2nd floor and there was no elevator so asked to be moved to 1st floor because of luggage and young children. The indoor pool was old and the water was super cold. The breakfast was descent. Looks like they are in the process of remodeling. At present ..."

Reviewed on Jun 22, 2026

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Quality Inn O'Fallon IL - St. Louis
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 ...
5.6/10 (492 reviews)
"It was an ok hotel and served the purpose. The staff was very helpful and pleasant, though."

Reviewed on Jun 23, 2026

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Baymont by Wyndham O'Fallon St. Louis Area
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 (158 reviews)
"All the sheets, towels, and linens were stained. We had to request another room to get sheets that were less stained but still stained. The front desk could care less about service and acted like we were a bother. The breakfast nook is dirty and not maintained. I would not stay here again."

Reviewed on Jun 18, 2026

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Comfort Inn & Suites O'Fallon - St. Louis Area
Hampton Inn O'Fallon

Hampton Inn O'Fallon

2.5 out of 5
430 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 and the clean ...
9.2/10 Wonderful! (853 reviews)
"Staff were very friendly. The only begi"

Reviewed on Jun 2, 2026

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Hampton Inn O'Fallon
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! (4,130 reviews)
"Parking was a bit of a challenge"

Reviewed on Jun 24, 2026

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Hyatt Regency St. Louis at The Arch
See all 1,401 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.