
$222 Cheap United flights from St. Louis to Montreal (STL to YUL)
Find The Best Day To Fly from St. Louis to Montreal
Amazing United STL to YUL Flight Deals
The cheapest flights to Pierre Elliott Trudeau Intl. found within the past 7 days were $617 round trip and $222 one way. Prices and availability subject to change. Additional terms may apply.
YUL From STL Economy Coach Packages on Similar Airlines



Frequently asked questions
Discover our best United flight from St. Louis STL to Montreal YUL
To find the best deals on flights to St. Louis from Montreal with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from St. Louis STL to Montreal YUL with United
If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $617 to $693, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way United flights from St. Louis STL to Montreal YUL
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from St. Louis to Montreal costs from $222. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Montreal YUL from St. Louis STL with United
To find a cheap United flight from St. Louis STL to Montreal YUL, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on United flights from St. Louis STL to Montreal YUL
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as August, or if you book a flight with a stopover.
Find nonstop flights from St. Louis STL to Montreal YUL with United
If you’re keen to be on Montreal soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for United flights from St. Louis STL to Montreal YUL
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Montreal YUL from St. Louis STL with United on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
---|---|---|---|
ORD | USA | O'Hare Intl. | 227 |
DEN | USA | Denver Intl. | 226 |
IAH | USA | George Bush Intercontinental | 136 |
IAD | USA | Washington Dulles Intl. | 100 |
SFO | USA | San Francisco Intl. | 64 |
LAX | USA | Los Angeles Intl. | 23 |
EWR | USA | Liberty Intl. | 20 |
FRA | DEU | Frankfurt Intl. | 19 |
NRT | JPN | Narita Intl. | 19 |
PEK | CHN | Capital Intl. | 16 |
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Popular United Flight Routes from STL
Top United Flight Routes from YUL
Top Flights for United originating from STL
Domestic
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International
- Newark Liberty Intl. Airport to Atlanta (EWR - ATL)
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- Los Angeles to Tokyo (LAX - HND)
- Los Angeles to Tokyo (LAX - NRT)
- Chicago to Orlando (ORD - MCO)