Cheap Flights to O'Fallon , MO from CA $132

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How much is the cheapest flight to O'Fallon?

Prices were available within the past 7 days and start at CA $132 for one-way flights and CA $469 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find Your Flights to O'Fallon STL

Cheap flights to O'Fallon (STL)

Get started finding a cheap flight to O'Fallon on Expedia by either choosing a deal on this page or using the search bar to enter your travel dates, origin airport, and whether you want a roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to O'Fallon.

Roundtrip prices range from CA $469 - CA $469, and one-ways O'Fallon start as low as CA $132.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

 

Airlines that fly to O'Fallon (STL)

You have several options for which airline you choose to travel with to O'Fallon. There are 10 airlines flying into STL: American Airlines, Delta, United, Alaska Airlines. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programmes may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel on one online platform.

 

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at optimal times. Airfare to O'Fallon (STL) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to STL in May and in May for one-ways.

 

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24 hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

What is the name of O'Fallon's airport?
Lambert-St. Louis Intl. Airport (STL) is the sole airport serving O’Fallon.
How far is St. Louis Lambert International Airport from central O'Fallon?
Lambert-St. Louis Intl. Airport (STL) is 31 kilometres from downtown O’Fallon, so prepare yourself for a bit of a journey into the center of the city.
What airport is best to fly into O'Fallon?
With one major airport operating in O’Fallon, it won’t take very long to find the best flight. You’ll be jetting off to St. Louis Lambert International Airport, which is located around 31 kilometres from the downtown area.
How many airlines fly to O'Fallon?
O’Fallon is serviced by 12 air carriers from 64 worldwide airports.
Which airlines fly to O'Fallon?
United Airlines and American Airlines are some of the leading airlines that offer flights to O’Fallon. Travelers often pick Chicago to set off from with United Airlines flying this route the most.
How many nonstop flights are there to O'Fallon?
Flying to somewhere new is much more straightforward when there aren’t any annoying stopovers. If you’re off to O’Fallon, the great news is that there are approximately 1,319 direct flights each week.
Where are the most popular flights to OFallon departing from?
A large number of flights to OFallon set off from Denver, Dallas and Chicago airports.
How long is the flight to O'Fallon Airport?
If it’s Chicago you’re departing, you’ll be in the air for around 1 hour and 15 minutes before you arrive in O’Fallon. Terminal to terminal from Queens Village takes around 2 hours and 51 minutes and from Denver, the flight time is 1 hour and 59 minutes.
How to book the cheapest flight to O'Fallon?
We all know those fortunate jet-setters who somehow pick up super cheap airfares every time they fly. Want to know how to do it for your O’Fallon vacation? Don’t wait until the very last minute to lock in your flight. Don’t stop there, however. Do some research and see if there are multiple airports at your destination. Ticket prices often differ depending on the airport you jet into. Be sure to compare prices across air carriers as well. Finally, be prepared to secure your seat quickly if you find an irresistible price. It might not stick around for long! With a bit of know-how and a little luck, the ideal airfare will be yours.
How to survive the flight to O'Fallon?
If you’re poorly prepared, air travel can be tough. But there’s no need to panic. Follow these useful tips for a worry-free start to your vacation in O’Fallon.What to pack in your hand luggage:

  • The trick to having a stress-free flight experience is to be prepared. So, let’s start with the essentials: passport, boarding pass, bank cards and daily medications. Next, bring items that’ll help pass the time, like some electronic gadgets or a thrilling book. It’s also wise to bring your chargers, a quality neck pillow and a pair of earplugs. And of course, be sure to squeeze in toiletries like a toothbrush, facial wipes and a fresh set of clothes.

Do not pack the following items in your hand luggage:

  • Make sure you don’t have sharp objects (like a knife or scissors) lurking in one of the zippers of your hand luggage. Other banned items include explosive or flammable substances, such as aerosol cans and bleach, and liquids and gels in containers with a capacity of more than 3.4 ounces (100 milliliters).

What to wear on a flight:

  • The aisles of your aircraft are not the best place for a fashion parade. Wear comfortable clothes and bring a cardigan as the temperature can drop in the cabin during long-haul flights. Flat, enclosed shoes are also a good choice.
  • A condition called deep vein thrombosis (DVT) can pose a risk on long-haul flights. It’s the result of blood clotting due to inactivity and poor circulation. Walking around the cabin and doing regular leg and foot exercises while seated helps to prevent this happening. Wearing a good pair of compression tights or socks can also help.

How to get through airport security fast when flying to O'Fallon?
A little pre-planning before you get to the airport can make your getaway to O’Fallon quick and painless. Below you’ll find some handy hints for a speedy journey past security:

  • Security personnel first need to determine that you have a valid ID and travel documents before anything else. Have them in your hand, ready for inspection.
  • The X-ray machine comes next. Remove anything metal on you that is likely to set off the scanner’s alarm. This includes items like headphones or earphones, as well as heavy coats or jackets. They’ll need to be placed on the conveyor belt for screening.
  • For just a few minutes, you’ll have to unplug from the digital world. Your tablet, phone and any other electronic devices also need to be sent through the scanner.
  • Any liquids or gels, such as perfume or hand cream, that you want to take on board need to be in containers no greater than 3.4 ounces (100 milliliters). Also, everything must fit inside a quart-size (one liter), clear zip-lock bag.
  • The right choice of footwear can save you several precious minutes. Boots and heavy shoes are often required to be removed and separately scanned. Slip-on sneakers usually aren’t.
  • Take all prohibited items out of your carry-on bag. If you have any sharp objects like a pocket knife or tools, pack them in your checked luggage. They won’t be allowed in the cabin.

Flights to O'Fallon information
Destination airport
O'Fallon
Destination airport IATA code
STL

Trending flights to O'Fallon

Prices were available within the past 7 days and start at CA $132 for one-way flights and CA $469 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon., May 6 - Tue., May 7
YVR
Vancouver Intl.
STL
Lambert-St. Louis Intl.
CA $469 Roundtrip, found 14 hours ago
CA $469
Roundtrip
found 14 hours ago
Select United flight, departing Mon., May 6 from Vancouver Intl. to Lambert-St. Louis Intl., returning Tue., May 7, priced at CA $469 found 14 hours ago
*Available to Expedia members.