Cheap Flight Deals to O'Fallon IL from CA $155

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How to find cheap flights to O'Fallon?

The cheapest prices found with in the last 7 days for return flights were CA $308 and CA $155 for one-way flights to O'Fallon for the period specified. Prices and availability are subject to change. Additional terms apply

OriginDestinationTravel datesFlights from*
SEASt. LouisMay 3 to May 10CA $368
EWRSt. LouisMay 24 to May 29CA $372
LGASt. LouisMay 25 to May 29CA $373
DENSt. LouisMay 3 to May 5CA $693
*Prices include taxes and fees

Your guide to flights to O'Fallon, IL

Delta, American Airlines fly to O'Fallon, so use Travelocity to search, find, and compare some truly tempting deals from the 4 airlines—that way you can be sure you’ve found the best deal for you. A flight to O'Fallon IL currently costs between CA $308 and CA $693. Prices vary, but for the best fares, travel in May 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 $308. 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 May 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

Super 8 by Wyndham O'Fallon

2 out of 5
1100 Eastgate Dr, O'Fallon, IL
The price is CA $75 per night from Apr. 23 to Apr. 24
CA $75
CA $87 total
includes taxes & fees
Apr 23 - Apr 24
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! (1,008 reviews)
Quiet area with free parking.
"The area seemed quiet. Free parking and no elevator. Or the the elevator didn't work, who knows. About 20 minutes from St Louis"

Reviewed on Apr. 6, 2025

Super 8 by Wyndham O'Fallon
Welcome Suites

Welcome Suites

2 out of 5
148 Regency Park, O'Fallon, IL
The price is CA $100 per night from Apr. 13 to Apr. 14
CA $100
CA $115 total
includes taxes & fees
Apr 13 - Apr 14
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free WiFi, free parking, and a fitness center. Popular attractions O'Fallon Family Sports Park ...
5/10 (163 reviews)
"Only issue was the room was in the process of updating after last long person stayed. Other than that everything was good."

Reviewed on Mar. 23, 2025

Welcome Suites
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
The price is CA $90 per night from Apr. 21 to Apr. 22
CA $90
CA $103 total
includes taxes & fees
Apr 21 - Apr 22
Stay at this 3-star 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! (938 reviews)
"Check in and check out went smooth. Everyone seemed fairly friendly. Kids loved the pool area. Breakfast was pretty good. I just love them Belgian waffles."

Reviewed on Apr. 7, 2025

Quality Inn O'Fallon IL - St. Louis
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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
The price is CA $96 per night from May 4 to May 5
CA $96
CA $111 total
includes taxes & fees
May 4 - May 5
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! (758 reviews)
"The stay was rather good. The room was fine, the breakfast was decent. There were a few oddities about the room that I told the staff about, such a a part on the coffee maker being missing and that the smoke alarm wasn't there. Other than those minor issues it was a good stay."

Reviewed on Apr. 6, 2025

Sleep Inn O'Fallon near I-64
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.

Luxury Hotels 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
The price is CA $75 per night from Apr. 23 to Apr. 24
CA $75
CA $87 total
includes taxes & fees
Apr 23 - Apr 24
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! (1,008 reviews)
Quiet area with free parking.
"The area seemed quiet. Free parking and no elevator. Or the the elevator didn't work, who knows. About 20 minutes from St Louis"

Reviewed on Apr. 6, 2025

Super 8 by Wyndham O'Fallon
La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis

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

2.5 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. ...
6.2/10 (1,000 reviews)
Not professional staff during check in dirty room.
"Stain in curtains and half of the light in the room doesn’t work. Check in Lady was in a zoom call that pointed in check in counter."

Reviewed on Apr. 8, 2025

La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis
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
The price is CA $90 per night from Apr. 21 to Apr. 22
CA $90
CA $103 total
includes taxes & fees
Apr 21 - Apr 22
Stay at this 3-star 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! (938 reviews)
"Check in and check out went smooth. Everyone seemed fairly friendly. Kids loved the pool area. Breakfast was pretty good. I just love them Belgian waffles."

Reviewed on Apr. 7, 2025

Quality Inn O'Fallon IL - St. Louis
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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
The price is CA $104 per night from May 4 to May 5
CA $104
CA $120 total
includes taxes & fees
May 4 - May 5
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 (357 reviews)
"Clean, comfortable and quiet"

Reviewed on Dec. 30, 2024

Baymont by Wyndham O'Fallon St. Louis Area
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.

Family Friendly Hotels in O'Fallon

Rodeway Inn & Suites

Rodeway Inn & Suites

2 out of 5
116 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 in our reviews. ...
6.6/10 (608 reviews)
"Good sleep"

Reviewed on Dec. 14, 2024

Rodeway Inn & Suites
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
The price is CA $144 per night from Apr. 27 to Apr. 28
CA $144
CA $167 total
includes taxes & fees
Apr 27 - Apr 28
Stay at this 3-star 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! (1,010 reviews)
"Had a nice two day mid week stay. The breakfast was good and the evening snack time was a nice surprise. Lots of food options close by as well. The pool/hot tub area was nice. It has an indoor/outdoor heated pool and large hot tub. Will definitely stay again if in the area."

Reviewed on Apr. 7, 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

2.5 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. ...
6.2/10 (1,000 reviews)
Not professional staff during check in dirty room.
"Stain in curtains and half of the light in the room doesn’t work. Check in Lady was in a zoom call that pointed in check in counter."

Reviewed on Apr. 8, 2025

La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis
Save an average of 15% on thousands of hotels when you're signed in
Super 8 by Wyndham O'Fallon

Super 8 by Wyndham O'Fallon

2 out of 5
1100 Eastgate Dr, O'Fallon, IL
The price is CA $75 per night from Apr. 23 to Apr. 24
CA $75
CA $87 total
includes taxes & fees
Apr 23 - Apr 24
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! (1,008 reviews)
Quiet area with free parking.
"The area seemed quiet. Free parking and no elevator. Or the the elevator didn't work, who knows. About 20 minutes from St Louis"

Reviewed on Apr. 6, 2025

Super 8 by Wyndham 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.

Need a car after flight to O'Fallon?

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!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.