Cheap Flights from St. Louis (STL) to Niagara Falls (IAG)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Niagara Falls, NY (IAG-Niagara Falls Intl.)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 40% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Frequently asked questions

How much is a flight from Lambert-St. Louis Intl. Airport (STL) to Niagara Falls Intl. Airport?
The lowest price advertised for a round-trip flight from Lambert-St. Louis Intl. Airport (STL) to IAG is . But you better act quick. This price is taken from fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from St. Louis Lambert International Airport to Niagara Falls Intl. Airport?
This can differ between airlines, as each one has its own set of terms and conditions. Visit the Customer Service Portal, where you’ll find simple instructions on how to cancel online.
How do I find cheap flights from Lambert Field to Niagara Falls Intl. Airport (IAG) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Lambert-St. Louis Intl. Airport (STL) to Niagara Falls Intl. Airport (IAG) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from St. Louis Lambert International Airport to Niagara Falls Intl. Airport (IAG)?
A flight distance of just 1,100 kilometers separates St. Louis and Niagara Falls. Once you’re up in the air, you won’t have time to do much more than read the in-flight magazine.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to IAG?
You won’t find any airlines operating directly between Lambert Field and Niagara Falls Intl. Airport, so be prepared to make at least one stop on your journey. A layover can be a nice way to break up a trip!
Are St. Louis Lambert International Airport to IAG flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Lambert Field to IAG at the last minute could be your ticket to a cheap deal. However, you might miss out on a flight altogether! If you’d rather not take any chances, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to a year in advance. If your preferred carrier hasn’t released tickets yet, check back often as deals are updated all the time on Expedia.
*Available to Expedia members.