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O'Fallon

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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 , 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  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 , 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  right now, why wait?

O'Fallon Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$338

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! (1,001 reviews)
"Great hotel!"

Reviewed on Oct 1, 2025

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Sleep Inn & Suites O'Fallon MO - Technology Drive
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! (1,012 reviews)
"Property was clean. Staff was very accommodating and courteous"

Reviewed on Oct 1, 2025

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Comfort Inn & Suites St. Louis - O'Fallon
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 ...
8.4/10 Very Good! (1,011 reviews)
"Upon arriving. I was treated as though know one really wanted to serve me. Im an African American, & i almost couldn't believe. That i was being treated this way by people my color. Their was 2 blk women, & a blk guy who acted as though i slept with his woman the night before. Their was a short blk ..."

Reviewed on Oct 1, 2025

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Renaissance St. Louis Airport Hotel
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! (2,714 reviews)
"Overall nice"

Reviewed on Oct 4, 2025

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Pear Tree Inn St. Louis Airport
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
Stay at this 3-star business-friendly hotel in Fenton. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
8/10 Very Good! (1,002 reviews)
"Clean, Easy to Park and Amazing staff!"

Reviewed on Oct 3, 2025

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

Hollywood Casino & Hotel St. Louis

3.5 out of 5
777 Casino Center Drive, Maryland Heights, MO
Stay at this 3.5-star business-friendly hotel in Maryland Heights. Enjoy free parking, 7 restaurants, and a casino. Our guests praise the helpful staff and the ...
8.4/10 Very Good! (2,154 reviews)
"This place had the cleanest and nicest bathroom of any hotel I've ever been in. The sliding door to the bathroom was odd at first, but it worked, although the space was quite small. For a casino, everything was very standard, like any other hotel, which was a bit disappointing, but it still had an ..."

Reviewed on Oct 4, 2025

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Hollywood Casino & Hotel St. Louis
La Quinta Inn & Suites by Wyndham St. Louis Westport

La Quinta Inn & Suites by Wyndham St. Louis Westport

3 out of 5
11805 Lackland Rd, 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 breakfast and the helpful ...
7/10 Good! (1,064 reviews)
A bit worn
"The halls smell strongly of pot. Is there any way to control this? The carpet in the halls were dirty. The elevator is dirty. Besides these things, The breakfast is very good. The staff is nice."

Reviewed on Sep 29, 2025

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La Quinta Inn & Suites by Wyndham St. Louis Westport
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! (1,027 reviews)
"Clean room"

Reviewed on Sep 28, 2025

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Ameristar Casino Resort and Spa
See all 922 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.