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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
Tue, Oct 7 - Sat, Oct 11
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$116 Roundtrip, found 5 days ago
$116
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Tue, Oct 7 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, Oct 11, priced at $116 found 5 days ago
Frontier Airlines
Thu, Oct 2 - Fri, Oct 10
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$126 Roundtrip, found 10 hours ago
$126
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Thu, Oct 2 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Oct 10, priced at $126 found 10 hours ago
Frontier Airlines
Sun, Aug 24 - Thu, Aug 28
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$143 Roundtrip, found 5 days ago
$143
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Aug 24 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Thu, Aug 28, priced at $143 found 5 days ago
Delta
Tue, Sep 16 - Fri, Sep 19
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$154 Roundtrip, found 4 days ago
$154
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Sep 16 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Sep 19, priced at $154 found 4 days ago
United
Wed, Oct 1 - Tue, Oct 7
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$159 Roundtrip, found 3 days ago
$159
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 1 from Denver Intl. to Lambert-St. Louis Intl., returning Tue, Oct 7, priced at $159 found 3 days ago
Delta
Sat, Sep 27 - Sat, Sep 27
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$174 Roundtrip, found 1 day ago
$174
Roundtrip
found 1 day 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 1 day ago
Delta
Tue, Sep 30 - Sat, Oct 11
LGA
LaGuardia
STL
Lambert-St. Louis Intl.
$176 Roundtrip, found 5 days ago
$176
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Sep 30 from LaGuardia to Lambert-St. Louis Intl., returning Sat, Oct 11, priced at $176 found 5 days ago
Spirit Airlines
Mon, Aug 25 - Sun, Aug 31
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$176 Roundtrip, found 4 days ago
$176
Roundtrip
found 4 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 4 days ago
American Airlines
Wed, Oct 15 - Sat, Oct 18
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$177 Roundtrip, found 4 days ago
$177
Roundtrip
found 4 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 4 days ago
Delta
Tue, Oct 14 - Tue, Oct 21
DAL
Love Field
STL
Lambert-St. Louis Intl.
$197 Roundtrip, found 5 days ago
$197
Roundtrip
found 5 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 5 days ago
Frontier Airlines
Mon, Aug 25 - Thu, Sep 4
EWR
Newark Liberty Intl. Airport
STL
Lambert-St. Louis Intl.
$210 Roundtrip, found 7 hours ago
$210
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Mon, Aug 25 from Newark Liberty Intl. Airport to Lambert-St. Louis Intl., returning Thu, Sep 4, priced at $210 found 7 hours ago
Hawaiian Airlines
Thu, Sep 11 - Mon, Sep 22
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$212 Roundtrip, found 6 days ago
$212
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Thu, Sep 11 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Mon, Sep 22, priced at $212 found 6 days ago
United
Tue, Sep 2 - Thu, Sep 4
ABQ
Albuquerque Intl. Sunport
STL
Lambert-St. Louis Intl.
$226 Roundtrip, found 21 hours ago
$226
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Sep 2 from Albuquerque Intl. Sunport to Lambert-St. Louis Intl., returning Thu, Sep 4, priced at $226 found 21 hours ago
Frontier Airlines
Tue, Oct 21 - Sat, Oct 25
ONT
Los Angeles - Ontario Intl.
STL
Lambert-St. Louis Intl.
$228 Roundtrip, found 6 days ago
$228
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $228 found 6 days ago
Alaska Airlines
Sat, Sep 27 - Sat, Sep 27
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Sep 27 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Sat, Sep 27, priced at $249 found 1 day ago
Bargain Flight
Sun, Aug 31 - Sat, Sep 6
PAE
Seattle Paine Field Intl. Airport
STL
Lambert-St. Louis Intl.
$676 Roundtrip, found 3 days ago
$676
Roundtrip
found 3 days 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 3 days 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 October, 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! (1,003 reviews)
"For the little amount of time i stayed, everything was clean , quiet and fast check in and out."

Reviewed on Aug 10, 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! (1,001 reviews)
"Hotel met expectations. Cookies at check in were a nice gesture"

Reviewed on Aug 12, 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! (761 reviews)
"The Lobby needs some attention. But the rooms were very nice. Very friendly ppl"

Reviewed on Aug 8, 2025

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Holiday Inn Express St. Louis West - O'Fallon 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 ...
8.2/10 Very Good! (2,052 reviews)
"It was nice and relaxing"

Reviewed on Aug 10, 2025

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Hollywood Casino & Hotel St. Louis
Renaissance St. Louis Airport Hotel

Renaissance St. Louis Airport Hotel

4 out of 5
9801 Natural Bridge Road, St. Louis, MO
Stay at this 4-star business-friendly hotel in St. Louis. Enjoy an outdoor pool, breakfast (surcharge), and a free airport shuttle. Our guests praise the helpful ...
8.2/10 Very Good! (1,011 reviews)
"Great staff every time we visit."

Reviewed on Aug 8, 2025

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Renaissance St. Louis Airport Hotel
Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham

Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham

3 out of 5
1088 South Highway Drive, Fenton, MO
Book a stay at this business-friendly hotel in Fenton. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
8.2/10 Very Good! (1,011 reviews)
"Great place"

Reviewed on Aug 12, 2025

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Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham
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! (2,657 reviews)
"I highly recommend choosing this place to stay, especially if you need a shuttle to the airport and a cheap place to park your car until you return ($16 a day and does not charge you for the day you are to return praise God)"

Reviewed on Aug 12, 2025

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Pear Tree Inn St. Louis Airport
Best Western St. Louis-Kirkwood Route 66

Best Western St. Louis-Kirkwood Route 66

3.5 out of 5
1200 S Kirkwood Road, Kirkwood, MO
Stay at this 3.5-star business-friendly hotel in Kirkwood. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful ...
8.4/10 Very Good! (1,253 reviews)
"The staff was really good and helpful, the foriegn young lady working the front desk takes her job really seriously and I appreciate her. Breakfast area was really clean and the workers assisted us great. Only complaint I have is the towels in the room could have been a little more clean ..."

Reviewed on Aug 13, 2025

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Best Western St. Louis-Kirkwood Route 66
See all 923 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.