Cheap Flight Deals to O'Fallon MO from CA $212
Wander Wisely with exceptional service, 24/7 supportOpens in a new window
Feel at ease with free flight cancellations within 24 hours of booking
Change your flight without a fee on select flights
How to find cheap flights to O'Fallon?
The cheapest prices found with in the last 7 days for return flights were CA $246 and CA $212 for one-way flights to O'Fallon for the period specified. Prices and availability are subject to change. Additional terms apply
Your guide to flights to O'Fallon, MO
Alaska Airlines, United fly to O'Fallon, so use Travelocity to search, find, and compare some truly tempting deals from the 2 airlines—that way you can be sure you’ve found the best deal for you. A flight to O'Fallon MO currently costs between CA $246 and CA $1,074. Prices vary, but for the best fares, travel in March when prices are at their lowest.
Top tips for finding cheap flights to O'Fallon
The cheapest flight for a round trip to O'Fallon is currently CA $246. When you search for flights to O'Fallon, enter your preferred travel dates then click on ‘flexible dates’ to compare cheap flight tickets to O'Fallon for nearby days. The cheapest month to travel to O'Fallon is March from our list of deals available.
But if you’re flexible about when you travel, you can find great deals on flights across the year. If you’re planning a vacation, you can save more on Travelocity when you bundle flights with car rental and hotel bookings, too. Many airlines currently offer flexible booking options, so look for flights offering no change fees.
How to cancel flights to O'Fallon
We know plans change, that’s why at Travelocity, we make it as easy as possible for you to cancel or amend your plane tickets. Go to My Trips, enter your itinerary number, then follow the instructions. Many airlines let you cancel flights online free of charge if you booked it in the last 24 hours. Visit Customer Service for more advice.
Why you should book your flight to O'Fallon with Travelocity
We have top deals on plane tickets even for last minute flights to O'Fallon, so you can simply type in your travel dates and compare our best prices. Booking with Travelocity means you get flexible cancellation options, 24/7 support, and, thanks to our Price Match Promise, if the airfare drops after you book, you can get a refund! Whether you’re planning a business trip, weekend getaway, or a family vacation—let Travelocity get you to O'Fallon for less.
Find The Perfect Hotel For After Your Flight
Amazing Place to Stay After Flight to O'Fallon
Super 8 by Wyndham O'Fallon MO/St. Louis Area
You want to pay more for a fancy hotel? Go right ahead. This is a no frills hotel with clean rooms and comfortable beds. The front desk and housekeeping are friendly and accommodating. We were in town for a family reunion. Several members of our family stayed here and like it as well. We would stay ...
Reviewed on Jan 27, 2026
Comfort Inn & Suites St. Louis - O'Fallon
Its an older hotel that needs some love. But definitely clean. Bathroom and room was spotless. Even the corners. Nice hot breakfast. Great value. Pool very small. But definitely not a deal breaker. Would definitely stay again. Check in was fast!
Reviewed on Jan 19, 2026
Hilton Garden Inn St. Louis/O'Fallon MO
Clean!!! Friendly staff. Wish breakfast was included!!!
Reviewed on Jan 18, 2026
Luxury Hotels in O'Fallon
Super 8 by Wyndham O'Fallon MO/St. Louis Area
You want to pay more for a fancy hotel? Go right ahead. This is a no frills hotel with clean rooms and comfortable beds. The front desk and housekeeping are friendly and accommodating. We were in town for a family reunion. Several members of our family stayed here and like it as well. We would stay ...
Reviewed on Jan 27, 2026
Family Friendly Hotels in O'Fallon
Sleep Inn & Suites O'Fallon MO - Technology Drive
A very nice one night stay on our roadtrip! The staff are very friendly and available, the place was clean, quiet and safe and the breakfast was fresh and hot. Would definitely stay here again.
Reviewed on Jan 25, 2026
Hilton Garden Inn St. Louis/O'Fallon MO
Clean!!! Friendly staff. Wish breakfast was included!!!
Reviewed on Jan 18, 2026
Residence Inn by Marriott O'Fallon
Awesome hotel , breakfast was nice and early and the room was awesome💪
Reviewed on Jan 18, 2026
Holiday Inn Express St. Louis West - O'Fallon by IHG
Service, cleanliness and breakfast were all very agreeable
Reviewed on Jan 24, 2026
Best O'Fallon Flight and Hotel Packages
O'Fallon flight + hotel packages - economy flights
Need a car after flight to O'Fallon?
Economy
Compact
Midsize
SUV
Frequently asked questions
Plane Tickets To O'Fallon
Although you may try and resist the urge, you know that when the travel bug comes, there is only one way to get rid of it. Thankfully, Travelocity is here to help nip that travel bug in the bud with great deals on flights to O'Fallon. Browse through our inventory to explore a wide range of cheap flights to O'Fallon to solidify your next big trip out of town. Whether you are heading out on a business trip, exploring a place you have never been for pleasure or are bringing the family on the annual vacation, we have the perfect getaway waiting for you. In no time, you will be day dreaming of your plane landing in O'Fallon as you anxiously await to exit the plane and explore what O'Fallon has to offer. Considering all the amazing local food and culture in O'Fallon, we won't hold this against you.
When you are ready to embark on your next big adventure, Travelocity will be right here waiting to open the doors to the garden so that you can go and smell the roses. When you decide to book and travel is entirely up to you, but don't wait too long because we have some of the best deals on the web and they won't last long. Take time to go through our huge selection of cheap flights to O'Fallon to find the best deals that fit into your budget. If browsing on your phone while your boss isn't looking is more your thing (we promise we won't tell), consider checking out Travelocity's mobile app which allows you to take advantage of all our flights to O'Fallon without having to compromise your work computer's search history. If you are looking to save even more, you can easily save up to $537 when you bundle one of our cheap flights to O'Fallon with one of our hotels. So why are you waiting around? There is no better time than now to start booking that next trip. Start your search now to book one of our flights to O'Fallon today!
Need more than a Flight to O'Fallon?
Near O'Fallon
Near St. Louis
Airports in O'Fallon
Other Flights to O'Fallon
Most Popular
- Hotels in Parkville
- Hotels in Ayr
- Condos Playa del Carmen
- Hotels with Hot Tubs in Medicine Hat
- Gay Friendly Hotels in Curaçao
- 5 Star Hotels in Calgary
- Treehouses Ontario
- All Inclusive Resorts & Hotels in South Thailand
- Cottages Combermere
- Cottages Kissimmee
- Holiday Inn Express & Suites Kelowna - East by IHG
- Condos Spain
- Hotels near South Edmonton Common
- Hotels in Downtown Toronto
- Holiday Inn Express Stellarton by IHG
- Cabins Algonquin Park
- Hostels Kahului
- Hotels with smoking rooms in Tijuana
- Kid Friendly Hotels in Las Vegas