Search Cheap Flights toO'Fallon
Search 400 airlines and 321,000 hotels worldwide.
Stop Planning & Start Exploring
FREE 24 hour cancellation on most flights
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?
Destination airport | Lambert-St. Louis Intl. |
|---|---|
Destination airport IATA code | STL |
Airlines serving | Alaska Airlines, American Airlines, Delta, United |
Number of airlines serving | 4 |
Roundtrip price | $257 |
Popular airline | Delta |
Last Minute Hotel Deals in O'Fallon
Holiday Inn Express St. Louis West - O'Fallon by IHG
The room that we stayed in was very clean, neat, and spacious. It also smelled good and had a great view. The staff were the friendliest, and the complimentary breakfast was great as well.
Reviewed on Jan 4, 2026
Sleep Inn & Suites O'Fallon MO - Technology Drive
The entire place is so clean. Breakfast is really good too. Stay in comfort and relax!
Reviewed on Jan 12, 2026
Comfort Inn & Suites St. Louis - O'Fallon
Room is clean. Excellent service.
Reviewed on Jan 4, 2026
Staybridge Suites O'Fallon Chesterfield by IHG
welcoming staff, good bfast menu, clean rooms
Reviewed on Jan 4, 2026
Residence Inn by Marriott O'Fallon
Quiet, clean, and friendly staff.
Reviewed on Dec 1, 2025
The Wildwood Hotel
We enjoyed our stay! Close to skiing and tubing. Lots of restaurants close. Kids loves the small swimming pool
Reviewed on Jan 7, 2026
Renaissance St. Louis Airport Hotel
Our check in was flawless as always and the staff was very friendly
Reviewed on Jan 11, 2026
Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham
Nice stay close to things
Reviewed on Jan 10, 2026
Nearby Cities
Popular Flight Routes
- Atlanta to New York
- Detroit to Las Vegas
- Dallas to Atlanta
- Dallas to Yosemite National Park
- Toronto to Edmonton
- Chicago to Tulum
- Houston to Lake Tahoe
- Chicago to Las Vegas
- Dallas to Miami
- Dallas to Lake Tahoe
- New York to Miami
- New York to Las Vegas
- Miami to Atlanta
- Minneapolis St Paul to Fort Walton Beach Destin
- Dallas to Branson
- Cleveland to Vero Beach
- Managua to Miami
- Atlanta to Boston
- Austin to Tulum
- Calgary to Vancouver