Cheap Flights to Waterloo , IL from CA $256

View CA $256 flight on Thu, Sep. 4, 2025Opens in a new window

Popular airlines to Waterloo

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How much is the cheapest flight to Waterloo?

Prices were available within the past 7 days and start at CA $256 for one-way flights and CA $434 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon., Oct. 27 - Thu., Oct. 30
YYZ
Toronto
STL
St. Louis
CA $434 Roundtrip, found 1 day ago
CA $434
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon., Oct. 27 from Toronto to St. Louis, returning Thu., Oct. 30, priced at CA $434 found 1 day ago
Delta
Wed., Aug. 20 - Wed., Sep. 10
YWG
Winnipeg
STL
St. Louis
CA $454 Roundtrip, found 3 days ago
CA $454
Roundtrip
found 3 days ago
Select Delta flight, departing Wed., Aug. 20 from Winnipeg to St. Louis, returning Wed., Sep. 10, priced at CA $454 found 3 days ago
United
Tue., Jul. 29 - Sat., Aug. 2
YVR
Vancouver
STL
St. Louis
CA $473 Roundtrip, found 2 days ago
CA $473
Roundtrip
found 2 days ago
Select United flight, departing Tue., Jul. 29 from Vancouver to St. Louis, returning Sat., Aug. 2, priced at CA $473 found 2 days ago
Alaska Airlines
Thu., Oct. 2 - Mon., Oct. 13
YVR
Vancouver
STL
St. Louis
CA $473 Roundtrip, found 3 days ago
CA $473
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., Oct. 2 from Vancouver to St. Louis, returning Mon., Oct. 13, priced at CA $473 found 3 days ago
Air Canada
Tue., Jul. 22 - Sat., Jul. 26
YYC
Calgary
STL
St. Louis
CA $515 Roundtrip, found 2 days ago
CA $515
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue., Jul. 22 from Calgary to St. Louis, returning Sat., Jul. 26, priced at CA $515 found 2 days ago

Find the cheapest month to fly from Columbus (CMH) to St. Louis (STL)

August is typically the cheapest month to fly

From CA $238 - CA $968 per traveller.

Graph displaying average flight prices per month

Expedia.ca gives you the best tools to secure great deals on flights to Waterloo. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to Waterloo. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Waterloo.

Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your Waterloo flights with full confidence knowing that you've found the best deal online.

Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to Waterloo.

Looking to save even more? Get additional savings by bundling your Waterloo flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your Waterloo trip!

Frequently asked questions

What is the name of Waterloo's airport?
Waterloo has just one airport, Lambert-St. Louis Intl. Airport (STL).
How far is Lambert Field from central Waterloo?
Lengthy commutes don't have to be stressful if you work out your strategy ahead of time. Downtown Waterloo is 48 kilometres from Lambert-St. Louis Intl. Airport (STL), so it's smart to know how you'll get into the city before you arrive.
What airport is best to fly into Waterloo?
Lambert-St. Louis Intl. Airport (STL) is the main airport in Waterloo. Before you hop on the plane, it's a smart idea to find out a little about it. It is situated 48 kilometres from the downtown area.
How many airlines fly to Waterloo?
Waterloo is serviced by 12 air carriers from at least 61 airports around the world.
Which airlines fly to Waterloo?
United Airlines and American Airlines operate the most flights to Waterloo. One of the most preferred ways to travel there is with a United Airlines flight from Chicago.
How many nonstop flights are there to Waterloo?
Flying to someplace new is much more fun when there aren't any stopovers to worry about. If you're making your way to Waterloo, the great news is that there are roughly 1,206 direct flights each week.
Where are the most popular flights to Waterloo departing from?
Flights to Waterloo from Chicago, Dallas and New York airports are the most popular.
How long is the flight to Waterloo Airport?
If it's Chicago you're departing, you'll be in the air for around 1 hour and 22 minutes before you touchdown in Waterloo. Tarmac to tarmac from Dallas takes around 1 hour and 43 minutes and from New York, the flight time is 3 hours and 1 minute.
How to book the cheapest flight to Waterloo?
We've all come across those lucky travellers who manage to land incredibly cheap fares wherever they go. Would you like to know how to do it for your Waterloo vacation? Don't leave it until the last minute to lock in your flight. Don't stop there, though. Do some research and check if there are multiple airports at your destination. Ticket prices often differ depending on which airport you go for. Remember to compare prices across air carriers as well. Last of all, be ready to secure your seat quickly if you stumble on a real bargain. It might not be available for long! With a bit of knowledge and some luck, the ideal fare will be yours.
Do you have any tips for my flight to Waterloo?
Depending on where you're coming from, your flight to Waterloo could be completely painless or it could go on forever. We've rounded up some useful tips that will help you start your unforgettable escape on the right foot. What to pack in your hand luggage:
  • The trick to having a stress-free travel experience is to plan ahead. So, let's start with the essentials: passport, boarding pass, bank cards and vital medications. Next, take on board items that'll help pass the time, like your laptop or a magazine. It's also smart to bring your chargers, a quality neck pillow and a pair of noise-cancelling headphones. Last but not least, don't forget to chuck in toiletries like a toothbrush, deodorant and a spare set of clothes.

Do not pack the following items in your hand luggage:
  • Check carefully that you don't have a Swiss Army knife hiding in the bottom of your carry-on luggage. Other prohibited items include explosive or flammable goods, like aerosols and matches, and gels and liquids in containers larger than 3.4 ounces (100 millilitres).

What to wear on a flight:
  • The aisles of a plane aren't the place for a fashion parade. Layer up with comfy clothing and choose shoes that are roomy, flat and easy to pull on and off.
  • The result of sustained periods of inactivity, deep vein thrombosis (DVT) is a blood clot condition that can affect passengers during long flights. Lower your risks by staying hydrated, keeping your feet and legs moving and wearing compression socks or tights.

How to get through airport security fast when flying to Waterloo?
As seasoned travellers know, the secret is to be prepared before you arrive at security. That way, you'll be hopping onto that plane to Waterloo in no time at all. Follow these tips and get your vacation off to a spectacular start:
  • Have your passport and travel documents close by. They're the first items you'll be asked for by security.
  • The X-ray machine is up next. Empty your pockets and remove anything that is likely to beep. This includes items like earphones or headphones, as well as heavy jackets or coats. They'll all need to go on the X-ray conveyor belt.
  • All electronic devices, including your phone and tablet, must also be scanned.
  • Remove liquids and gels from your carry-on bag. They usually need to be sent through the X-ray separately. Each product should be no larger than 3.4 ounces (100 millilitres) and everything must fit inside a quart-size (one litre), clear zip-close bag.
  • It's also likely that you'll need to take your shoes off to be X-rayed, so wearing slip-on shoes is always a wise idea.
  • Avoid taking prohibited items in your carry-on bag. If you have any sharp objects like a pocket knife or tools, pack them in your checked baggage. They won't be allowed on board.

Flights to Waterloo information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
CA $434

Trending flights to Waterloo

Prices were available within the past 7 days and start at CA $256 for one-way flights and CA $434 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon., Oct. 27 - Thu., Oct. 30
YYZ
Toronto
STL
St. Louis
CA $434 Roundtrip, found 1 day ago
CA $434
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon., Oct. 27 from Toronto to St. Louis, returning Thu., Oct. 30, priced at CA $434 found 1 day ago
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