Cheap flights To O'Fallon (STL) from $40

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Cheap Flights to O'Fallon from $40 One Way, $83 Round Trip

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Tue, May 6 - Wed, May 14
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$83 Roundtrip, found 6 days ago
$83
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Tue, May 6 from Orlando Intl. to Lambert-St. Louis Intl., returning Wed, May 14, priced at $83 found 6 days ago
Fri, Nov 7 - Sun, Nov 9
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$100 Roundtrip, found 1 hour ago
$100
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Fri, Nov 7 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Sun, Nov 9, priced at $100 found 1 hour ago
Sat, May 17 - Sun, May 18
FLL
Fort Lauderdale - Hollywood Intl.
STL
Lambert-St. Louis Intl.
$101 Roundtrip, found 5 days ago
$101
Roundtrip
found 5 days ago
Select Spirit Airlines flight, departing Sat, May 17 from Fort Lauderdale - Hollywood Intl. to Lambert-St. Louis Intl., returning Sun, May 18, priced at $101 found 5 days ago
Sat, Jun 14 - Sat, Jun 14
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$104 Roundtrip, found 1 day ago
$104
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Jun 14 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Jun 14, priced at $104 found 1 day ago
Thu, May 29 - Thu, Jun 5
FLL
Fort Lauderdale - Hollywood Intl.
STL
Lambert-St. Louis Intl.
$105 Roundtrip, found 2 days ago
$105
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Thu, May 29 from Fort Lauderdale - Hollywood Intl. to Lambert-St. Louis Intl., returning Thu, Jun 5, priced at $105 found 2 days ago
Sat, Jul 12 - Sat, Jul 19
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$109 Roundtrip, found 3 days ago
$109
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Jul 12 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Jul 19, priced at $109 found 3 days ago
Sat, May 3 - Sat, May 10
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$115 Roundtrip, found 6 days ago
$115
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sat, May 3 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, May 10, priced at $115 found 6 days ago
Sun, Jul 27 - Sun, Jul 27
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$143 Roundtrip, found 6 days ago
$143
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sun, Jul 27 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Sun, Jul 27, priced at $143 found 6 days ago
Tue, May 20 - Sun, May 25
ORD
O'Hare Intl.
STL
Lambert-St. Louis Intl.
$168 Roundtrip, found 3 days ago
$168
Roundtrip
found 3 days ago
Select Southern Airways Express flight, departing Tue, May 20 from O'Hare Intl. to Lambert-St. Louis Intl., returning Sun, May 25, priced at $168 found 3 days ago
Thu, Jul 17 - Mon, Jul 21
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$171 Roundtrip, found 6 days ago
$171
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Jul 17 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Mon, Jul 21, priced at $171 found 6 days ago

O'Fallon Flight Information

Traveling To
O'Fallon
Destination Airport IATA Code
STL
Number of Airlines Serving
Airlines
Spirit Airlines, Frontier Airlines, Delta, United, Southern Airways Express, American Airlines
Flight Price
$83
Earliest Departing Flight
Latest Departing Flight

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O'Fallon economy flight packages

Price found within the past 48 hours. Click for updated prices.
White House at Grand Central
4.0-star property

White House at Grand Central

Jun 5 - Jun 7

2 night stay

San Francisco (SFO) to St. Louis (STL)

Frontier Airlines • Non-stop roundtrip • Coach
per person
found 14 hours ago
HoteLumiere at the Arch
4.0-star property

HoteLumiere at the Arch

Jun 5 - Jun 8

3 night stay

Los Angeles (LAX) to St. Louis (STL)

United • Non-stop • Coach

St. Louis (STL) to Los Angeles (LAX)

Spirit Airlines • Non-stop • Coach
per person
found 12 hours ago
The Wildwood Hotel
3.5-star property

The Wildwood Hotel

Jun 26 - Jun 29

3 night stay

Los Angeles (LAX) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Los Angeles (LAX)

Frontier Airlines • Coach
per person
found 1 day ago
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O'Fallon premium economy flight packages

Price found within the past 48 hours. Click for updated prices.
The Wildwood Hotel
3.5-star property

The Wildwood Hotel

9/10 Wonderful! (1,464 reviews)

Jun 6 - Jun 8

2 night stay

Los Angeles (LAX) to St. Louis (STL)

Delta • Non-stop roundtrip • PremiumEconomy
per person
found 13 hours ago
The staff at this property were incredible. Everyone we talked to was friendly and helpful. I even left something of value behind and they had it shipped to me and I am ever so grateful. The room and the amenities were great and the hotel is in an area that feels safe and has a walking path nearby and also shopping and dining. We would definitely stay here again.

Reviewed on Apr 21, 2025

Ballpark Heights Apartments By Barsala
4.0-star property

Ballpark Heights Apartments By Barsala

No reviews

Jun 6 - Jun 8

2 night stay

Los Angeles (LAX) to St. Louis (STL)

Delta • Non-stop roundtrip • PremiumEconomy
per person
found 13 hours ago
Ameristar Casino Resort and Spa
4.5-star property

Ameristar Casino Resort and Spa

8.4/10 Very Good! (1,004 reviews)

Jun 6 - Jun 8

2 night stay

Los Angeles (LAX) to St. Louis (STL)

Delta • Non-stop roundtrip • PremiumEconomy
per person
found 13 hours ago
All was good. Except for the smoking casino

Reviewed on Apr 19, 2025

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O'Fallon

When you plan to buy tickets for flights to O'Fallon, you don’t have to look any further than Orbitz! We offer bargain rates and low fares on thousands of flights.

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Frequently asked questions

Which airlines fly to O'Fallon?
With 20 airlines servicing Lambert-St. Louis Intl. Airport (STL), the entryway to O’Fallon, you have plenty of choice. Find an excellent deal among these well-known international airlines that’ll get you to this city:

  • Air Canada - 35 flights to O’Fallon per month
  • Frontier Airlines - 17 flights to O’Fallon per month
  • Lufthansa - 3 flights to O’Fallon per month

What is the best airport to fly to in O'Fallon?
Lambert-St. Louis Intl. Airport (STL) is the gateway to the city, so your toughest decision will be the aisle seat or the window seat. Central O’Fallon is roughly 19 miles away and where many travelers start their adventure.
How much is a flight to O'Fallon?
Loads of fantastic deals were up for the taking this week, with return flights to O’Fallon fluctuating from $83 to $171. But it was passengers beginning their trip from Fort Lauderdale (FLL) who bagged the biggest bargains. One-way tickets to O’Fallon started at just $40.
How to book the cheapest flight to O'Fallon?
Using Orbitz, you’ll uncover some of the most incredible flight deals around from a wide selection of airlines. But if you’d love to improve your chances of landing cheap flights to O’Fallon, here are some suggestions to bear in mind:

  • Depending on your departure point, click on the ‘Nearby airports’ function (located under the departure and arrival options). From time to time, alternative departure points will have cheaper fares.
  • Also, click on the ‘Show flexible dates’ link to view the prices for days around your chosen departure. You may be able to score cheaper flight deals if your travel plans are flexible.
  • Hit ‘Show options’ to fine tune your search results. You can pick your preferred seating class and airline here. Under ‘Sort & Filter’ to the left, you can even specify whether you’d like to fly in the morning, afternoon or evening.
  • If you’ve worked out your travel dates, don’t drag your feet booking a flight. Ticket prices generally increase as the departure date nears.
  • Make even more savings on your getaway by bundling your hotel, flights and car rental into a package deal. Your credit card will thank you.
  • Flying during the busy season can mean higher airfares. Try to vacation outside of popular periods, such as Easter, Thanksgiving and school breaks.

How long is a flight to O'Fallon?
Where you’re leaving from and whether you have a layover will determine the time you spend in the air. However, these three top routes to O’Fallon will give you a clearer picture:

  • New York, NY (LGA-LaGuardia) to Lambert-St. Louis Intl. Airport (STL) - 2 hours and 28 minutes
  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1 hour and 41 minutes
  • Chicago, IL (ORD-O’Hare Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1 hour and 27 minutes

What is the best time to book a flight to O'Fallon?
If you can, book your tickets to O’Fallon in January. This is the best month to reserve low airfares, followed by February and August. With a little organizing, you’re guaranteed to find a cheap flight with Orbitz.
What day of the week is the cheapest to book a flight to O'Fallon?
You can get a great flight deal by making a booking on a Tuesday, Wednesday or Saturday. Typically, these are the best days of the week to land cheap airfares to O’Fallon.
What is the cheapest day of the week to fly to O'Fallon?
According to Orbitz data from 2020, you’ll want to kick off your trip on a Monday to score cheap flights to O’Fallon. Next cheapest day? Tuesday. Saturday is the most expensive. So, think about leaving early in the week if you’d love to score a bargain fare without paying premium prices.
What is the cheapest month to fly to O'Fallon?
To book cheap flights to O’Fallon, you should fly out in August. If saving money on your ticket is your top priority, Orbitz data shows that this is generally an excellent month to travel. June is when airfares are at their peak.
Which airlines allow free cancellation?
We know that plans can change and flexibility is more important than ever. That’s why you can easily search for flights that include free cancellation and no change fees on Orbitz. Simply click on “Filter by flexible change policies” and we’ll find you fares more flexible than a lip balm left in the sun!
What do I need for the flight to O'Fallon?
Flying can be fun if you’re well prepared! Make your trip a total breeze with the following handy tips:

  • Before you step on to the plane, you’ll need to present proof of identification, like a passport. You’ll also need your ticket. If you’re traveling with the kids, check with your airline about which documents they require — if any.
  • To keep you occupied on your short trip to O’Fallon, download some new songs or stock up the podcast library on your smartphone. Food can also be a tasty distraction while in the air, so pack a snack.
  • It can get very cool on the plane. If you don’t want to shiver your way through the flight, wear an extra layer.

How many direct flights are there to O'Fallon?
Your thrilling adventure is one easy plane ride away, with 482 direct services to O’Fallon every month. Search for your ideal flight with Orbitz and pick up an awesome deal with Southwest Airlines, American Airlines or Delta Air Lines. Other reputable airlines that provide nonstop services include United Airlines, Cape Air and Frontier Airlines.
How do I get cheap first-class/business deals to O'Fallon?
Smart travelers know how to find business or first-class fares to O’Fallon that don’t cost an arm and a leg. Be like them with these handy tips:

  • Flexibility doesn’t just help with your yoga. Avoid locking in your travel dates so you can snap up more affordable airfares when a big sale comes along.
  • Budget airlines offer business-class seats at more affordable prices. Ditch the full-service carriers and fly with one these cheaper options.
  • Bid for an upgrade. Some airlines hold online auctions that let you offer a price for a seat at the front of the plane. You can also try upgrading with points earned through a flight loyalty scheme.

How to get into O'Fallon from the airport?
A Lambert-St. Louis Intl. Airport (STL) car rental is a great way of traveling from STL airport to downtown O’Fallon. Pick up a vehicle from one of the major rental outlets on-site, such as Budget, Avis or Thrifty Car Rental and then head west. You’ll need to drive around 19 miles to reach the city center. O’Fallon car rentals is another popular option located downtown if you’d prefer not to drive immediately after you touch down.
What is the best time to go to OFallon?
OFallon is a busy place in March, April and June. If you’re arranging a visit during these months, it may be an idea to book well in advance to ensure you nab the best deals. Curious to know what the summertime’s like in OFallon? Average daily temperatures normally hover between 65 ºF and 85 ºF. Like most of the Northern Hemisphere, the summer season kicks off June 20 here.
Travel tips for O'Fallon

  • There are awesome attractions almost everywhere you look in this busy city. If you’re basing yourself in the center, pull on your comfiest walking shoes and stroll to 9-11 Memorial.
  • If you’d like to venture farther afield and explore other O’Fallon sights, arrange a car rental and follow the signs to Gateway Arch. It won’t take long to drive to from downtown.
  • Clock up some more miles on the odometer and visit some of St. Louis’s other popular cities. Maryville is one that’s waiting to be explored.

Nearby

Flights To

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.