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Cheap flights from St. Louis to Québec City from $434

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Québec City departing on 12/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Québec City

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:24 pm - 2:40 pmSTL-YQB
20h 16m1 stop
Multiple Airlines Logo
6:30 am - 10:33 pmYQB-STL
17h 03m1 stop
$592Multiple Airlines
Find Deal
Thu, Mar 26 - Thu, Apr 2
Multiple Airlines Logo
6:00 am - 2:40 pmSTL-YQB
7h 40m1 stop
Multiple Airlines Logo
6:30 am - 10:33 pmYQB-STL
17h 03m1 stop
$638Multiple Airlines
Find Deal
Fri, Mar 27 - Thu, Apr 2
Multiple Airlines Logo
10:42 am - 3:20 pmSTL-YQB
27h 38m2 stops
Multiple Airlines Logo
6:30 am - 10:33 pmYQB-STL
17h 03m1 stop
$654Multiple Airlines
Find Deal
Thu, Mar 26 - Thu, Apr 2
Multiple Airlines Logo
10:42 am - 3:20 pmSTL-YQB
27h 38m2 stops
Multiple Airlines Logo
6:30 am - 10:33 pmYQB-STL
17h 03m1 stop
$655Multiple Airlines
Find Deal
Sun, Mar 22 - Thu, Apr 2
Multiple Airlines Logo
6:00 am - 2:40 pmSTL-YQB
7h 40m1 stop
Multiple Airlines Logo
6:30 am - 9:47 amYQB-STL
28h 17m2 stops
$677Multiple Airlines
Find Deal
Fri, Mar 27 - Mon, Mar 30
Air Canada Logo
4:05 pm - 10:43 pmSTL-YQB
5h 38m1 stop
Air Canada Logo
5:35 am - 3:24 pmYQB-STL
10h 49m2 stops
$682Air Canada
Find Deal
Sat, Mar 21 - Fri, Apr 3
United Airlines Logo
7:40 am - 10:47 pmSTL-YQB
14h 07m2 stops
United Airlines Logo
6:00 am - 11:09 amYQB-STL
6h 09m1 stop
$689United Airlines
Find Deal
Mon, Mar 23 - Thu, Apr 2
United Airlines Logo
9:57 am - 10:47 pmSTL-YQB
11h 50m2 stops
United Airlines Logo
6:00 am - 2:29 pmYQB-STL
9h 29m2 stops
$694United Airlines
Find Deal
Mon, Feb 9 - Thu, Feb 12
Air Canada Logo
4:05 pm - 10:43 pmSTL-YQB
5h 38m1 stop
Air Canada Logo
10:40 am - 3:24 pmYQB-STL
5h 44m1 stop
$699Air Canada
Find Deal
Wed, Mar 25 - Tue, Mar 31
Air Canada Logo
4:05 pm - 10:43 pmSTL-YQB
5h 38m1 stop
Air Canada Logo
5:00 am - 3:24 pmYQB-STL
11h 24m1 stop
$700Air Canada
Find Deal
Sat, Mar 21 - Mon, Mar 30

Air Canada flights from St. Louis to Québec City

Our best Air Canada deals on St. Louis to Québec City flight tickets
Air Canada
Mar 21
STL4:05 pmLambert-St Louis
5h 38m
1 stop
YQB10:43 pmQuébec City
Apr 3
YQB5:35 amQuébec City
10h 49m
2 stops
STL3:24 pmLambert-St Louis
$682
Find similar
Air Canada
Mar 25
STL4:05 pmLambert-St Louis
5h 38m
1 stop
YQB10:43 pmQuébec City
Mar 31
YQB10:40 amQuébec City
5h 44m
1 stop
STL3:24 pmLambert-St Louis
$699
Find similar
Air Canada
Mar 21
STL4:05 pmLambert-St Louis
5h 38m
1 stop
YQB10:43 pmQuébec City
Mar 30
YQB5:00 amQuébec City
11h 24m
1 stop
STL3:24 pmLambert-St Louis
$700
Find similar

United Airlines flights from St. Louis to Québec City

Our best United Airlines deals on St. Louis to Québec City flight tickets
United Airlines
Mar 23
STL7:40 amLambert-St Louis
14h 07m
2 stops
YQB10:47 pmQuébec City
Apr 2
YQB6:00 amQuébec City
6h 09m
1 stop
STL11:09 amLambert-St Louis
$689
Find similar
United Airlines
Feb 9
STL9:57 amLambert-St Louis
11h 50m
2 stops
YQB10:47 pmQuébec City
Feb 12
YQB6:00 amQuébec City
11h 02m
2 stops
STL4:02 pmLambert-St Louis
$694
Find similar
United Airlines
Feb 16
STL7:41 amLambert-St Louis
14h 06m
2 stops
YQB10:47 pmQuébec City
Feb 19
YQB6:00 amQuébec City
9h 29m
2 stops
STL2:29 pmLambert-St Louis
$715
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Québec City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 19, 2025.
Use the filters below to find and compare flights from St. Louis to Québec City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 3/26

5:24 pm-2:40 pm

1 stop20h 16m

Québec City

Thu 4/2

6:30 am-10:33 pm

1 stop17h 03m

$592

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 3/27

6:00 am-2:40 pm

1 stop7h 40m

Québec City

Thu 4/2

6:30 am-10:33 pm

1 stop17h 03m

$638

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 3/26

10:42 am-3:20 pm

2 stops27h 38m

Québec City

Thu 4/2

6:30 am-10:33 pm

1 stop17h 03m

$654

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 3/22

10:42 am-3:20 pm

2 stops27h 38m

Québec City

Thu 4/2

6:30 am-10:33 pm

1 stop17h 03m

$655

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 3/27

6:00 am-2:40 pm

1 stop7h 40m

Québec City

Mon 3/30

6:30 am-9:47 am

2 stops28h 17m

$677

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 3/21

4:05 pm-10:43 pm

1 stop5h 38m

Québec City

Fri 4/3

5:35 am-3:24 pm

2 stops10h 49m

$682

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 3/23

7:40 am-10:47 pm

2 stops14h 07m

Québec City

Thu 4/2

6:00 am-11:09 am

1 stop6h 09m

$689

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 2/9

9:57 am-10:47 pm

2 stops11h 50m

Québec City

Thu 2/12

6:00 am-2:29 pm

2 stops9h 29m

$694

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 3/25

4:05 pm-10:43 pm

1 stop5h 38m

Québec City

Tue 3/31

10:40 am-3:24 pm

1 stop5h 44m

$699

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 3/21

4:05 pm-10:43 pm

1 stop5h 38m

Québec City

Mon 3/30

5:00 am-3:24 pm

1 stop11h 24m

$700

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Québec City from

How to get the cheapest flight ticket from St. Louis to Québec City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Québec City?

The cheapest month to fly to Québec City from St. Louis is in October. Flight prices, which tend to average around $298, are often lower during this time because this is during the off-season. If you’re not able to fly to Québec City in October, then February is your next best option. Flight prices from St. Louis to Québec City during February average around $369.

What is the cheapest day to depart on your flight to Québec City?

The cheapest day to depart from St. Louis to Québec City is on a Saturday when prices can be found for as low as $366. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Québec City on Tuesday is $853.

What is the cheapest time of day to depart on your flight to Québec City?

In the morning is the cheapest time of day to fly from St. Louis to Québec City when you can find flight prices for as low as $652. Flying to Québec City in the morning is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Québec City, so prices are often more expensive at around $744 per ticket.

When to book flights from St. Louis to Québec City

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Québec City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Québec City (STL to YQB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Québec City

Direct flights

None
There are no direct flights from St. Louis to Québec City. There are no popular flight routes from St. Louis to Québec City.
Search flight deals

  • How far is Lambert-St Louis to Québec City by plane?

    A flight from Lambert-St Louis to Québec City will travel around 1112.3 mi. In terms of flight time, this usually takes a little over 5h 23m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Québec City Airport?

    Prices for flights from Lambert-St Louis Airport to Québec City Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Québec City Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Québec City Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Québec City Airport.

  • What documentation or ID do you need to fly to Québec City Airport?

    The required travel and health documents for your Québec City Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Québec City Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from St. Louis to Québec City?

Best airlines flying from St. Louis to Québec City

Compare and see reviews for airlines that fly from St. Louis to Québec City with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $211Free CancellationRating
7.1
10,462 reviews
Search Air Canada flights
United AirlinesPriceFrom $358Free CancellationRating
7.4
9,024 reviews
Search United Airlines flights

Traveling to a place near Québec City?

Book flights to Québec City if you plan to visit one of these locations
Beaupre
Baie-Saint-Paul
Victoriaville
Sainte-Marie

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Québec City?

Finding the right flight to Québec City from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Québec City quick and easy, saving you time and money.

Can I find flights from St. Louis to Québec City with flexible booking policies on momondo?

All flight searches from St. Louis to Québec City on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Québec City?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Québec City from St. Louis.

I’m not ready to book a flight from St. Louis to Québec City right now. Can momondo alert me if prices change?

Price alerts on flights to Québec City from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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