CA $326 Cheap Flights from Hamilton (YHM) to St. Louis (STL)

View CA $326 flight on Fri, Jul. 4, 2025Opens in a new window

Popular airlines from John C. Munro Hamilton Intl. Airport (YHM) to Lambert-St. Louis International Airport (STL)

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Cheap flights from Hamilton (YHM) to St. Louis (STL)

Prices were available within the past 7 days and start at CA $326 for one-way flights and CA $568 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Fri., May 23 - Mon., May 26
YHM
Hamilton
STL
St. Louis
CA $568 Roundtrip, found 4 days ago
CA $568
Roundtrip
found 4 days ago
Select Air Canada flight, departing Fri., May 23 from Hamilton to St. Louis, returning Mon., May 26, priced at CA $568 found 4 days ago
Air Canada
Mon., Aug. 11 - Thu., Aug. 14
YHM
Hamilton
STL
St. Louis
CA $570 Roundtrip, found 5 days ago
CA $570
Roundtrip
found 5 days ago
Select Air Canada flight, departing Mon., Aug. 11 from Hamilton to St. Louis, returning Thu., Aug. 14, priced at CA $570 found 5 days ago
Air Canada
Wed., Aug. 27 - Mon., Sep. 1
YHM
Hamilton
STL
St. Louis
CA $590 Roundtrip, found 3 days ago
CA $590
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed., Aug. 27 from Hamilton to St. Louis, returning Mon., Sep. 1, priced at CA $590 found 3 days ago
Air Canada
Fri., Aug. 29 - Mon., Sep. 1
YHM
Hamilton
STL
St. Louis
CA $591 Roundtrip, found 5 days ago
CA $591
Roundtrip
found 5 days ago
Select Air Canada flight, departing Fri., Aug. 29 from Hamilton to St. Louis, returning Mon., Sep. 1, priced at CA $591 found 5 days ago
Air Canada
Sun., Jun. 8 - Fri., Jun. 13
YHM
Hamilton
STL
St. Louis
CA $602 Roundtrip, just found
CA $602
Roundtrip
just found
Select Air Canada flight, departing Sun., Jun. 8 from Hamilton to St. Louis, returning Fri., Jun. 13, priced at CA $602 just found
Air Canada
Thu., Jul. 31 - Tue., Aug. 5
YHM
Hamilton
STL
St. Louis
CA $610 Roundtrip, found 1 day ago
CA $610
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu., Jul. 31 from Hamilton to St. Louis, returning Tue., Aug. 5, priced at CA $610 found 1 day ago
Air Canada
Mon., Aug. 11 - Thu., Aug. 14
YHM
Hamilton
STL
St. Louis
CA $612 Roundtrip, found 5 days ago
CA $612
Roundtrip
found 5 days ago
Select Air Canada flight, departing Mon., Aug. 11 from Hamilton to St. Louis, returning Thu., Aug. 14, priced at CA $612 found 5 days ago
Air Canada
Mon., Aug. 18 - Thu., Aug. 21
YHM
Hamilton
STL
St. Louis
CA $625 Roundtrip, found 4 days ago
CA $625
Roundtrip
found 4 days ago
Select Air Canada flight, departing Mon., Aug. 18 from Hamilton to St. Louis, returning Thu., Aug. 21, priced at CA $625 found 4 days ago
Air Canada
Wed., Aug. 27 - Mon., Sep. 1
YHM
Hamilton
STL
St. Louis
CA $634 Roundtrip, found 3 days ago
CA $634
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed., Aug. 27 from Hamilton to St. Louis, returning Mon., Sep. 1, priced at CA $634 found 3 days ago
Air Canada
Mon., Aug. 18 - Thu., Aug. 21
YHM
Hamilton
STL
St. Louis
CA $634 Roundtrip, found 4 days ago
CA $634
Roundtrip
found 4 days ago
Select Air Canada flight, departing Mon., Aug. 18 from Hamilton to St. Louis, returning Thu., Aug. 21, priced at CA $634 found 4 days ago
Flight from Hamilton to St. Louis (YHM - STL) route information
Origin airport
John C. Munro Hamilton Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Air Canada
Roundtrip price
CA $568
Distance
998 km

Hamilton to St. Louis Flights

Ready for an adventure? Thought so! Prepare to see the sights when you book your trip from Hamilton to St. Louis with Expedia.ca. Whether you’re visiting for business or pleasure, we know how important it is to bring home travel stories. Maybe your tales will include the best dinner of your life, or the weirdest street art you saw in the city, or the concert that turned you into a fan of a new band. Whatever it is, your new favourite anecdote is right around the corner. Book your trip from YHM to STL and begin your journey!

Getting a cheap deal on your trip sets the tone for the perfect holiday. And with Expedia.ca, you know you can travel from Hamilton to St. Louis on the cheap, with enough money left over for a stellar time in the city. That could mean more tours with the kids, more concerts with the spouse, more dessert amongst co-workers, or even front row seats to a sports game if you’re travelling solo. It’s your holiday! Make it great.

Travelling shouldn’t cost an arm and a leg before you even get to relax on the plane’s armrests. Count on Expedia.ca to get you the best discounts on flights from YHM to STL. And remember this: You can also save big when you bundle. Add a hotel or car rental deal to your flight and witness those savings add up. Hey, more money for more souvenirs, right? Right! Pack your bags and we’ll see you on the route.

Combine your St. Louis flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from with Expedia Canada. Use us as your top travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from Toronto Hamilton Intl. Airport to Lambert-St. Louis Intl. Airport (STL)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight from Toronto Hamilton Intl. Airport to STL was CA $568. Cheap fares don’t hang around forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Toronto Hamilton Intl. Airport to Lambert Field?
Most flights can be canceled online, but each airline has its own terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from Toronto Hamilton Intl. Airport to Lambert Field 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 YHM to Lambert Field flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from John C. Munro Hamilton Intl. Airport (YHM) to Lambert-St. Louis Intl. Airport (STL)?
It’s just 1,000 kilometers from John C. Munro Hamilton Intl. Airport (YHM) to St. Louis Lambert International Airport. It’s quite possible that you’ll spend more time traveling to and from the airport than actually flying!
Which airlines fly direct from YHM to Lambert Field?
You won’t find any airlines operating directly between John C. Munro Hamilton Intl. Airport (YHM) and Lambert Field, so be ready to make at least one stop on your journey. A layover, whether short or long, can be a welcome way to break up a trip!
Are John C. Munro Hamilton Intl. Airport (YHM) to St. Louis Lambert International Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes pick up a bargain, with some super cheap fares from Toronto Hamilton Intl. Airport to St. Louis Lambert International Airport showing up a few weeks before the departure date. If you’d rather plan ahead of time, Expedia compares and updates the best flight deals continuously — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines quote prices so far in advance.

Explore a world of travel with Expedia

Hamilton nearby Airports

Toronto

Pearson Intl. to St. Louis
CA $482.58
Billy Bishop Toronto City to St. Louis
CA $550.88

Kitchener

Region of Waterloo Intl. to St. Louis
CA $569.47
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