Cheap Flights To Waterloo 2026

Waterloo Flights as Low as $557

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$557
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $557 found 6 days ago
American Airlines
American Airlines
United
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$624
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $624 found 6 days ago
American Airlines
Delta
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$634
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $634 found 6 days ago
Delta
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$640
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $640 found 6 days ago
Air Canada
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$647
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $647 found 6 days ago
Delta
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$650
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $650 found 6 days ago
United
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$650
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $650 found 6 days ago
WestJet
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$653
Roundtrip
found 6 days ago
Select WestJet flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $653 found 6 days ago
American Airlines
Delta
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$731
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $731 found 6 days ago
United
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$751
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $751 found 6 days ago
Air Canada
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$751
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $751 found 6 days ago
WestJet
Sat, Sep 26 - Thu, Oct 1
STL
Lambert-St. Louis Intl.
YUL
Pierre Elliott Trudeau Intl.
$770
Roundtrip
found 6 days ago
Select WestJet flight, departing Sat, Sep 26 from Lambert-St. Louis Intl. to Pierre Elliott Trudeau Intl., returning Thu, Oct 1, priced at $770 found 6 days ago

Flight Travel Guide to Waterloo

If Waterloo is calling your name, then book your next flight to (airport). And with the AARP Travel Center Powered by Expedia®, you're in good hands. With the best rates from Expedia combined with members-only discounts, AARP Travel offers members the best price in travel, guaranteed. AARP members get exclusive rates on hotels and car rentals, and won't pay booking fees on flights.

Once you've entered your destination and departure point, we'll show you a full list of deals for your route. Do not forget to look at flights to alternative airports nearby, which can help you get a lower rate.

Transportation at the Airport

Once you've reserved plane tickets to Waterloo, you may want to book a car so you can get around on your own. You can schedule a Waterloo rental car under our cars tab and hop into the car as soon as you step out of the airport. If you do not need a rental car, there are other ground transportation options such as shuttle, limousine, taxi, and ride share application services.

Waterloo Activities

Not sure where to start? Not to worry—there's so many things to do in this city. No matter what you decide to do with your time, you're sure to have fun in this city.

If you're looking for some fun activities to do in Waterloo, make sure you look at our "Things to Do in Waterloo" page for excursions and activities for the whole crew.

Book Your Hotel in Waterloo

Waterloo has lodging to choose from, make sure you check out our hotel listings tab for some great recommendations from past visitors. Remember that you will get the best for your visit to Waterloo when you book your stay with AARP Travel.

Planning Your Flight to Waterloo

We know that you want to focus less on the logistics and more on the fun stuff, so we provide travel arrangements that fall within your budget. There is no better time than now to start booking your next trip. Book one of our flights today.