YMQ - STL Price
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C$ 222 - C$ 369
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STL Temperature
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0 - 27 °C
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STL Rainfall
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56 - 119 mm
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Popular in September High demand for flights, 19% potential price rise |
Cheapest in August Best time to find cheap flights, 26% potential price drop |
Average price C$ 304 Average for round-trip flights in May 2022 |
Round-trip from C$ 285 From Montreal (YMQ) to Lambert-St Louis |
Users have found that flying from Montreal to St. Louis on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.
Flights from Montreal to St. Louis lean towards being more expensive in September. Prices are generally better when you fly from Montreal to St. Louis in August, with the cheapest ticket starting at C$ 144.
Unlike in the morning, when flights are generally more expensive, you can save up to 3% on flights from Montreal to St. Louis by exploring options for tickets in the afternoon.
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 54 days in advance, which can save you up to 55% on flights from Montreal to St. Louis compared to booking the week you need them. Waiting 54 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 465. For sooner than that we have options available in the next 3 days from C$ 547.
Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Montreal. On average, Lambert-St Louis has 0 inbound flights from Montreal per day from 4 airlines. Lambert-St Louis is conveniently located just 20.4 km from St. Louis’s city centre.
Due to the rapidly changing circumstances due to COVID-19, airlines like American Airlines, Delta, and Air Canada flying from Montreal to Lambert-St Louis have implemented new flexible cancellation policies.
Yes, there are multiple flights from Montreal to St. Louis for under C$ 600. The cheapest flight booked recently is on Air Canada for just C$ 521, but on average you can expect to pay C$ 758.
Currently priced at C$ 521, Air Canada will fly you from Montreal to St. Louis and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from C$ 589 and C$ 663, respectively.
To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at C$ 282. Air Canada flights start at C$ 285 while deals on American Airlines start at C$ 290 one-way.
Looking at all options, your cheapest flight can be booked for C$ 616. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis) can be booked for C$ 498 on average our data indicates C$ 616 when flying from Montreal to St. Louis.
Consider American Airlines, Air Canada or Delta when booking your flight. These represent the most popular airlines when flying from Montreal to St. Louis.
Information is based on travel restrictions from Montreal to Lambert-St Louis
Most visitors from Montreal need to provide a negative COVID-19 test result and/or quarantine to enter Lambert-St Louis.
COVID-19 testing requirements
Visitors from Montreal must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Lambert-St Louis.
Quarantine requirements
Visitors from Montreal are not required to quarantine after entering Lambert-St Louis.
Returning to Montreal from Lambert-St Louis
COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Montreal.
Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Montreal.
Airline | Cheapest | Average | Flexibility | On-time | COVID-19 safety | |
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C$ 236 | C$ 588 | No cancel fee | N/A |
Search Delta flights
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C$ 237 | C$ 546 | No cancel fee | 67% |
Search Air Canada flights
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C$ 306 | C$ 536 | No cancel fee | 69% |
Search United Airlines flights
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C$ 414 | C$ 548 | No cancel fee | 71% |
Search American Airlines flights
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