Popular in | November |
---|---|
Cheapest in | January |
Round-trip from | C$ 497 |
One-way from | C$ 366 |
It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 58 days in advance, which can save you up to 68% on flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis compared to booking the week you need them. Waiting 58 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$ 664. For sooner than that we have options available in the next 3 days from C$ 753.
Flights from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis lean towards being more expensive in July. Prices are generally better when you fly from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis in February, with the cheapest ticket starting at C$ 460.
It’s optimal to fly from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis in the morning. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the afternoon.
Fly from
Fly to
Budget
C$ 580 - C$ 841
Route
Depart
Return
Price
Montreal Pierre Elliott Trudeau IntlLambert-St Louis
YUL - STL
YULSTL
Montreal Pierre Elliott Trudeau Intl
Sat 7/9
Nonstop2h 35m
Lambert-St Louis
Tue 10/9
1 stop6h 14m
Montreal Pierre Elliott Trudeau IntlLambert-St Louis
YUL - STL
YULSTL
Montreal Pierre Elliott Trudeau Intl
Thu 4/7
1 stop10h 25m
Lambert-St Louis
Sun 21/7
1 stop6h 08m
Montreal Pierre Elliott Trudeau IntlLambert-St Louis
YUL - STL
YULSTL
Montreal Pierre Elliott Trudeau Intl
Sat 22/6
1 stop14h 06m
Lambert-St Louis
Sat 29/6
1 stop6h 17m
Montreal Pierre Elliott Trudeau IntlLambert-St Louis
YUL - STL
YULSTL
Montreal Pierre Elliott Trudeau Intl
Fri 16/8
1 stop5h 27m
Lambert-St Louis
Wed 21/8
1 stop12h 35m
Montreal Pierre Elliott Trudeau IntlLambert-St Louis
YUL - STL
YULSTL
Montreal Pierre Elliott Trudeau Intl
Sat 7/9
Nonstop2h 35m
Lambert-St Louis
Tue 10/9
1 stop7h 06m
Montreal Pierre Elliott Trudeau IntlLambert-St Louis
YUL - STL
YULSTL
Montreal Pierre Elliott Trudeau Intl
Thu 4/7
2 stops19h 56m
Lambert-St Louis
Sun 21/7
1 stop6h 08m
Montreal Pierre Elliott Trudeau IntlLambert-St Louis
YUL - STL
YULSTL
Montreal Pierre Elliott Trudeau Intl
Fri 16/8
Nonstop2h 35m
Lambert-St Louis
Wed 21/8
1 stop8h 43m
Montreal Pierre Elliott Trudeau IntlLambert-St Louis
YUL - STL
YULSTL
Montreal Pierre Elliott Trudeau Intl
Fri 7/6
1 stop4h 15m
Lambert-St Louis
Mon 10/6
1 stop6h 55m
Montreal Pierre Elliott Trudeau IntlLambert-St Louis
YUL - STL
YULSTL
Montreal Pierre Elliott Trudeau Intl
Sat 22/6
2 stops22h 35m
Lambert-St Louis
Sat 29/6
3 stops22h 33m
Currently, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis (average of C$ 365). Flying from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis in July is currently the most expensive (average of C$ 560). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
January
C$ 497
February
C$ 546
March
C$ 608
April
C$ 547
May
C$ 574
June
C$ 664
July
C$ 762
August
C$ 638
September
C$ 617
October
C$ 652
November
C$ 548
December
C$ 517
STL Temperature | 0 - 27 °C |
---|
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
0%of flight departures | Early morningMidnight to 6 am |
---|---|
0%of flight departures | Morning6 am to noon |
0%of flight departures | AfternoonNoon to 6 pm |
100%of flight departures | Evening6 pm to midnight |
Cheapflights makes it easy to find Pierre Elliott Trudeau Intl to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Pierre Elliott Trudeau Intl to St. Louis for you. Better yet — we are completely free to use.
Need flexible booking options for your flight to St. Louis from Pierre Elliott Trudeau Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Yes, Cheapflights offers price alerts on Pierre Elliott Trudeau Intl to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.