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O'Fallon

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O'Fallon Flights as Low as $116

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

Frontier Airlines
Sat, Jul 26 - Sat, Aug 2
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$116 Roundtrip, found 22 hours ago
$116
Roundtrip
found 22 hours ago
Select Frontier Airlines flight, departing Sat, Jul 26 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 2, priced at $116 found 22 hours ago
Frontier Airlines
Mon, Oct 6 - Sat, Oct 11
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$149 Roundtrip, found 10 hours ago
$149
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Mon, Oct 6 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, Oct 11, priced at $149 found 10 hours ago
Delta
Tue, Aug 26 - Wed, Sep 3
LGA
LaGuardia
STL
Lambert-St. Louis Intl.
$151 Roundtrip, found 1 day ago
$151
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Aug 26 from LaGuardia to Lambert-St. Louis Intl., returning Wed, Sep 3, priced at $151 found 1 day ago
United
Mon, Oct 6 - Sat, Oct 11
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$157 Roundtrip, found 10 hours ago
$157
Roundtrip
found 10 hours ago
Select United flight, departing Mon, Oct 6 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, Oct 11, priced at $157 found 10 hours ago
American Airlines
Mon, Oct 6 - Tue, Oct 14
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$163 Roundtrip, found 4 days ago
$163
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Oct 6 from Denver Intl. to Lambert-St. Louis Intl., returning Tue, Oct 14, priced at $163 found 4 days ago
Spirit Airlines
Sun, Jul 20 - Mon, Jul 21
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$169 Roundtrip, found 1 day ago
$169
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sun, Jul 20 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Jul 21, priced at $169 found 1 day ago
Delta
Tue, Aug 26 - Tue, Aug 26
DAL
Love Field
STL
Lambert-St. Louis Intl.
$191 Roundtrip, found 1 day ago
$191
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Aug 26 from Love Field to Lambert-St. Louis Intl., returning Tue, Aug 26, priced at $191 found 1 day ago
American Airlines
Tue, Oct 7 - Tue, Oct 7
SAT
San Antonio Intl.
STL
Lambert-St. Louis Intl.
$199 Roundtrip, found 9 hours ago
$199
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Oct 7 from San Antonio Intl. to Lambert-St. Louis Intl., returning Tue, Oct 7, priced at $199 found 9 hours ago
Spirit Airlines
Thu, Jul 10 - Wed, Jul 16
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$211 Roundtrip, found 3 days ago
$211
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Thu, Jul 10 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Wed, Jul 16, priced at $211 found 3 days ago
Frontier Airlines
Sat, Jun 14 - Sat, Jun 21
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$212 Roundtrip, found 23 hours ago
$212
Roundtrip
found 23 hours ago
Select Frontier Airlines flight, departing Sat, Jun 14 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sat, Jun 21, priced at $212 found 23 hours ago
Frontier Airlines
Mon, Sep 22 - Thu, Sep 25
SAN
San Diego Intl.
STL
Lambert-St. Louis Intl.
$214 Roundtrip, found 12 hours ago
$214
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Mon, Sep 22 from San Diego Intl. to Lambert-St. Louis Intl., returning Thu, Sep 25, priced at $214 found 12 hours ago
Delta
Sun, Jun 22 - Tue, Jul 1
CAE
Columbia Metropolitan
STL
Lambert-St. Louis Intl.
$240 Roundtrip, found 11 hours ago
$240
Roundtrip
found 11 hours ago
Select Delta flight, departing Sun, Jun 22 from Columbia Metropolitan to Lambert-St. Louis Intl., returning Tue, Jul 1, priced at $240 found 11 hours ago
Bargain Flight
Wed, Jul 9 - Sat, Jul 12
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$251 Roundtrip, found 2 days ago
$251
Roundtrip
found 2 days ago
Select Bargain Flight flight, departing Wed, Jul 9 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Sat, Jul 12, priced at $251 found 2 days ago
Alaska Airlines
Mon, Sep 22 - Tue, Sep 23
SAN
San Diego Intl.
STL
Lambert-St. Louis Intl.
$327 Roundtrip, found 1 day ago
$327
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Sep 22 from San Diego Intl. to Lambert-St. Louis Intl., returning Tue, Sep 23, priced at $327 found 1 day ago
Hawaiian Airlines
Thu, Jul 24 - Tue, Jul 29
SAN
San Diego Intl.
STL
Lambert-St. Louis Intl.
$348 Roundtrip, found 1 day ago
$348
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Thu, Jul 24 from San Diego Intl. to Lambert-St. Louis Intl., returning Tue, Jul 29, priced at $348 found 1 day ago
American Airlines
Tue, Sep 23 - Fri, Sep 26
CLD
McClellan-Palomar
STL
Lambert-St. Louis Intl.
$349 Roundtrip, found 9 hours ago
$349
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Sep 23 from McClellan-Palomar to Lambert-St. Louis Intl., returning Fri, Sep 26, priced at $349 found 9 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 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 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 $116, 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 $116 right now, why wait?

O'Fallon Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$116

Last Minute Hotel Deals in O'Fallon

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)
"It worked for one night. Decent breakfast"

Reviewed on Jun 6, 2025

Get rates
Comfort Inn & Suites St. Louis - 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 ...
8.8/10 Excellent! (1,003 reviews)
"Very friendly, happy, and heloful staff. Every single person we encountered was so willing to help us."

Reviewed on Jun 5, 2025

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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. ...
8.4/10 Very Good! (708 reviews)
"Housekeeping was not paying attention to us. Food was decent, and the front desk was friendly. Slow drain in the tub made for an icky shower."

Reviewed on Jun 3, 2025

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Holiday Inn Express St. Louis West - O'Fallon by IHG
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 3-star hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. Popular attractions ...
8.2/10 Very Good! (336 reviews)
"It was a very clean stay."

Reviewed on Jun 6, 2025

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Staybridge Suites O'Fallon Chesterfield by IHG
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 ...
9.2/10 Wonderful! (2,584 reviews)
"This is a great place for the price. Always clean and comfortable. Is our place to go when we are going to take a very early flight (we live 2 hours away from the airport) or when one of our kids has a soccer tournament near by."

Reviewed on Jun 5, 2025

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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 ...
8.2/10 Very Good! (1,910 reviews)
"Nice accommodations. Easy access to music venue."

Reviewed on Jun 6, 2025

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Hollywood Casino & Hotel St. Louis
Larkspur Landing Extended Stay Suites St. Louis Riverport - Airport West
Larkspur Landing Extended Stay Suites St. Louis Riverport - Airport West
3 out of 5
13639 Riverport Dr, Maryland Heights, MO
Stay at this 3-star business-friendly hotel in Maryland Heights. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the ...
7.2/10 Good! (1,010 reviews)
"There was a child's blanket left under the bed from the previous stay aside from that was the only issue I had with the stay"

Reviewed on Jun 7, 2025

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Larkspur Landing Extended Stay Suites St. Louis Riverport - Airport West
Wingate by Wyndham St. Louis Airport
Wingate by Wyndham St. Louis Airport
2.5 out of 5
10820 Pear Tree Lane, 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 ...
9.2/10 Wonderful! (1,289 reviews)
"Great stay!"

Reviewed on Jun 6, 2025

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Wingate by Wyndham St. Louis Airport
See all 919 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.