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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 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 , 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
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Number of airlines serving
5
Roundtrip price
$741
Popular airline
Delta

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 ...
7/10 Good! (1,000 reviews)
Room could’ve been cleaner but friendly staff

Reviewed on Dec 11, 2025

Super 8 by Wyndham O'Fallon
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 ...
9.4/10 Exceptional! (1,005 reviews)
The Breakfast was nice and saved us money on the trip. Hotel and rooms were very clean and all the workers were very nice. Local was good for anything you would need and close the St. Louis

Reviewed on Dec 12, 2025

Drury Inn & Suites St. Louis O'Fallon, IL
La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis

La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis

3 out of 5
136 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 clean rooms in our reviews. ...
5.8/10 (1,001 reviews)
Clean bed and room. Very nice staff

Reviewed on Dec 12, 2025

La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis
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! (811 reviews)
Very nice rooms, clean and quiet!

Reviewed on Dec 11, 2025

Hampton Inn O'Fallon
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! (1,006 reviews)
Rooms are always great. The price is excellent and the staff have always been very friendly. Each time we visit home Illinois we stay there.

Reviewed on Dec 17, 2025

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 ...
5.4/10 (422 reviews)
Everything was great except i cant get my 100 dollar deposit back and we kept our room neat and orderly,theres no reason for them to keep it

Reviewed on Dec 8, 2025

Baymont by Wyndham O'Fallon St. Louis Area
Sleep Inn O'Fallon near I-64

Sleep Inn O'Fallon near I-64

2.5 out of 5
140 Venita 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 (877 reviews)
Everything thing was amazing

Reviewed on Nov 23, 2025

Sleep Inn O'Fallon near I-64
Holiday Inn Express & Suites - O'Fallon /Shiloh by IHG

Holiday Inn Express & Suites - O'Fallon /Shiloh by IHG

2.5 out of 5
3396 Green Mount Crossing Drive Shiloh 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. ...
8.4/10 Very Good! (547 reviews)
Clean rooms and friendly staff

Reviewed on Dec 7, 2025

Holiday Inn Express & Suites - O'Fallon /Shiloh by IHG
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.