Cheap Flights From Region of Waterloo Intl. (YKF) To Lambert-St. Louis Intl. (STL)
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
Find The Best Dates To Fly
Cheapest Flights from Kitchener (YKF) to St. Louis (STL)
The cheapest flights to Lambert-St. Louis Intl. found within the past 7 days were round trip and CA $1,605 one way. Prices and availability subject to change. Additional terms may apply.
Best Lambert-St. Louis Intl. Flight and Hotel Packages
Lambert-St. Louis Intl. flight + hotel packages - economy flights
Price found within the past 48 hours. Click for updated prices.
Don't see what you're looking for?
See all available trips from Region of Waterloo Intl. to Lambert-St. Louis Intl.
View all tripsPopular Flight Routes from Kitchener (YKF)
Travelers at YKF love to visit these top cities. Roam to the top destinations from Kitchener (YKF) today with the cheap prices from Travelocity!
Popular Flight Routes from St. Louis (STL)
Travelers at STL love to visit these top cities. Roam to the top destinations from St. Louis(STL) today with the cheap prices from Travelocity!