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O'Fallon

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O'Fallon Flights as Low as $108

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

Frontier Airlines
Thu, Aug 21 - Sun, Aug 24
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$108 Roundtrip, found 10 hours ago
$108
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Thu, Aug 21 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Sun, Aug 24, priced at $108 found 10 hours ago
Frontier Airlines
Thu, Aug 21 - Sun, Aug 24
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$151 Roundtrip, found 10 hours ago
$151
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Thu, Aug 21 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Sun, Aug 24, priced at $151 found 10 hours ago
Frontier Airlines
Sun, May 25 - Mon, Jun 2
ONT
Los Angeles - Ontario Intl.
STL
Lambert-St. Louis Intl.
$165 Roundtrip, found 1 day ago
$165
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, May 25 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Mon, Jun 2, priced at $165 found 1 day ago
United
Tue, Jul 8 - Tue, Jul 15
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$191 Roundtrip, found 2 days ago
$191
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jul 8 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Tue, Jul 15, priced at $191 found 2 days ago
Delta
Tue, Oct 7 - Tue, Oct 7
SAT
San Antonio Intl.
STL
Lambert-St. Louis Intl.
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Oct 7 from San Antonio Intl. to Lambert-St. Louis Intl., returning Tue, Oct 7, priced at $197 found 2 days ago
Delta
Thu, Jul 10 - Fri, Jul 11
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Jul 10 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Fri, Jul 11, priced at $197 found 2 days ago
American Airlines
Thu, Aug 21 - Mon, Aug 25
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$215 Roundtrip, found 3 days ago
$215
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Aug 21 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Mon, Aug 25, priced at $215 found 3 days ago
Spirit Airlines
Thu, Jun 19 - Mon, Jun 23
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$227 Roundtrip, found 1 day ago
$227
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Thu, Jun 19 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Mon, Jun 23, priced at $227 found 1 day ago
Delta
Sat, Jun 14 - Sat, Jun 14
DAL
Love Field
STL
Lambert-St. Louis Intl.
$233 Roundtrip, found 3 days ago
$233
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Jun 14 from Love Field to Lambert-St. Louis Intl., returning Sat, Jun 14, priced at $233 found 3 days ago
Bargain Flight
Tue, May 27 - Sat, May 31
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$252 Roundtrip, found 1 day ago
$252
Roundtrip
found 1 day ago
Select Bargain Flight flight, departing Tue, May 27 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Sat, May 31, priced at $252 found 1 day ago
Delta
Fri, Jun 20 - Fri, Jun 20
PDX
Portland Intl.
STL
Lambert-St. Louis Intl.
$253 Roundtrip, found 1 day ago
$253
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Jun 20 from Portland Intl. to Lambert-St. Louis Intl., returning Fri, Jun 20, priced at $253 found 1 day ago
American Airlines
Wed, Jul 2 - Mon, Jul 7
PNS
Pensacola Intl.
STL
Lambert-St. Louis Intl.
$254 Roundtrip, found 1 day ago
$254
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Jul 2 from Pensacola Intl. to Lambert-St. Louis Intl., returning Mon, Jul 7, priced at $254 found 1 day ago
American Airlines
Tue, May 13 - Wed, May 21
AVL
Asheville Regional
STL
Lambert-St. Louis Intl.
$281 Roundtrip, found 4 hours ago
$281
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, May 13 from Asheville Regional to Lambert-St. Louis Intl., returning Wed, May 21, priced at $281 found 4 hours ago
Bargain Flight
Sun, May 18 - Wed, May 28
PDX
Portland Intl.
STL
Lambert-St. Louis Intl.
$317 Roundtrip, found 1 day ago
$317
Roundtrip
found 1 day ago
Select Bargain Flight flight, departing Sun, May 18 from Portland Intl. to Lambert-St. Louis Intl., returning Wed, May 28, priced at $317 found 1 day ago
American Airlines
Tue, May 13 - Wed, Jun 4
DAB
Daytona Beach Intl.
STL
Lambert-St. Louis Intl.
$323 Roundtrip, found 1 day ago
$323
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, May 13 from Daytona Beach Intl. to Lambert-St. Louis Intl., returning Wed, Jun 4, priced at $323 found 1 day ago
Hawaiian Airlines
Sat, May 17 - Wed, May 28
PDX
Portland Intl.
STL
Lambert-St. Louis Intl.
$348 Roundtrip, found 1 day ago
$348
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, May 17 from Portland Intl. to Lambert-St. Louis Intl., returning Wed, May 28, priced at $348 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 14 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 $108, 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 $108 right now, why wait?

Last Minute Hotel Deals in 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)
"I stay here whenever I come to St. Louis. The staff is always friendly and professional, the rooms are clean, and it is quiet at night. Great place to stay and it is at a good location for food. I do not use the pool, but it is always clean when I check it out."

Reviewed on May 6, 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! (697 reviews)
"The person that checked me in was extremely nice! The room was clean & the coffee bar was stocked. I had an abundance of towels $face cloths. The Dove shampoo , conditioner,& soap were completely full"

Reviewed on May 9, 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! (324 reviews)
"Everything was just fine!!"

Reviewed on Apr 28, 2025

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Staybridge Suites O'Fallon Chesterfield by IHG
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)
"This was my favorite property thus far. We traveled over 6000 miles and stayed at several places but this was the best!"

Reviewed on May 7, 2025

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Comfort Inn & Suites St. Louis - O'Fallon
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! (2,551 reviews)
"The staff were great and I would stay again for sure . The beds were very comfy"

Reviewed on May 6, 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! (1,891 reviews)
"The rooms were clean and spacious. There was an issue with the toilet in one of the rooms; 3 service calls had to be made before the issue was fixed. The tv service wasn't good either, but not a lot of time was spent watching tv. The restaurant selection wasn't as varied as the website said. 99 hops ..."

Reviewed on May 9, 2025

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Hollywood Casino & Hotel St. Louis
Best Western St. Louis-Kirkwood Route 66
Best Western St. Louis-Kirkwood Route 66
2.5 out of 5
1200 S Kirkwood Road, Kirkwood, MO
Book a stay at this business-friendly hotel in Kirkwood. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
8.6/10 Excellent! (1,141 reviews)
"The only negative would be that the interior door frame of the bathroom needed a good clean"

Reviewed on May 7, 2025

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Best Western St. Louis-Kirkwood Route 66
Ameristar Casino Resort and Spa
Ameristar Casino Resort and Spa
4.5 out of 5
1 Ameristar Blvd, St. Charles, MO
Stay at this 4.5-star luxury hotel in St. Charles. Enjoy an outdoor pool, a full-service spa, and 6 restaurants. Our guests praise the clean rooms and the property ...
8.2/10 Very Good! (1,002 reviews)
"Very nice rooms!"

Reviewed on May 6, 2025

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Ameristar Casino Resort and Spa
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.