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Cheap flights from Québec City to St. Louis from C$ 390

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Québec City to St. Louis departing on 4/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Québec City to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
1:05 p.m. - 6:42 p.m.
YQB
-
STL
6h 37m
1 stop
Air Canada Logo
8:55 a.m. - 4:01 p.m.
STL
-
YQB
6h 06m
1 stop
C$ 736Air Canada
Mon, 31 Aug - Mon, 7 Sep
American Airlines Logo
2:27 p.m. - 10:20 a.m.
YQB
-
STL
20h 53m
1 stop
American Airlines Logo
7:27 a.m. - 1:53 p.m.
STL
-
YQB
5h 26m
1 stop
C$ 740American Airlines
Fri, 25 Sep - Sun, 27 Sep
Air Canada Logo
12:35 p.m. - 8:24 p.m.
YQB
-
STL
8h 49m
2 stops
Air Canada Logo
8:55 a.m. - 4:01 p.m.
STL
-
YQB
6h 06m
1 stop
C$ 750Air Canada
Mon, 31 Aug - Mon, 7 Sep
American Airlines Logo
3:59 p.m. - 10:20 a.m.
YQB
-
STL
19h 21m
2 stops
American Airlines Logo
5:00 a.m. - 1:53 p.m.
STL
-
YQB
7h 53m
1 stop
C$ 753American Airlines
Fri, 25 Sep - Sun, 27 Sep
United Airlines Logo
4:55 p.m. - 11:38 p.m.
YQB
-
STL
7h 43m
1 stop
United Airlines Logo
6:00 a.m. - 3:25 p.m.
STL
-
YQB
8h 25m
2 stops
C$ 764United Airlines
Tue, 25 Aug - Sat, 29 Aug
United Airlines Logo
3:00 p.m. - 10:00 p.m.
YQB
-
STL
8h 00m
1 stop
United Airlines Logo
6:00 a.m. - 2:08 p.m.
STL
-
YQB
7h 08m
1 stop
C$ 765United Airlines
Tue, 25 Aug - Sat, 29 Aug
United Airlines Logo
6:00 a.m. - 9:51 p.m.
YQB
-
STL
16h 51m
1 stop
United Airlines Logo
7:33 a.m. - 4:41 p.m.
STL
-
YQB
8h 08m
2 stops
C$ 772United Airlines
Mon, 16 Nov - Tue, 17 Nov
United Airlines Logo
6:00 a.m. - 11:16 a.m.
YQB
-
STL
6h 16m
1 stop
United Airlines Logo
6:54 p.m. - 12:02 p.m.
STL
-
YQB
16h 08m
2 stops
C$ 785United Airlines
Sun, 30 Aug - Sun, 6 Sep
American Airlines Logo
3:59 p.m. - 10:20 a.m.
YQB
-
STL
19h 21m
2 stops
American Airlines Logo
5:18 p.m. - 11:43 a.m.
STL
-
YQB
17h 25m
2 stops
C$ 861American Airlines
Fri, 25 Sep - Sun, 27 Sep
Air Canada Logo
10:55 a.m. - 9:13 p.m.
YQB
-
STL
11h 18m
2 stops
Air Canada Logo
1:08 p.m. - 10:36 p.m.
STL
-
YQB
8h 28m
2 stops
C$ 865Air Canada
Mon, 16 Nov - Tue, 17 Nov

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Air Canada flights from Québec City to St. Louis

Our best Air Canada deals on Québec City to St. Louis flight tickets
Air Canada
31 Aug
YQB1:05 p.m.Québec City
6h 37m
1 stop
STL6:42 p.m.Lambert-St Louis
7 Sep
STL8:55 a.m.Lambert-St Louis
6h 06m
1 stop
YQB4:01 p.m.Québec City
C$ 736
Air Canada
31 Aug
YQB12:35 p.m.Québec City
8h 49m
2 stops
STL8:24 p.m.Lambert-St Louis
7 Sep
STL8:55 a.m.Lambert-St Louis
6h 06m
1 stop
YQB4:01 p.m.Québec City
C$ 750
Air Canada
16 Nov
YQB10:55 a.m.Québec City
11h 18m
2 stops
STL9:13 p.m.Lambert-St Louis
17 Nov
STL1:08 p.m.Lambert-St Louis
8h 28m
2 stops
YQB10:36 p.m.Québec City
C$ 865

United Airlines flights from Québec City to St. Louis

Our best United Airlines deals on Québec City to St. Louis flight tickets
United Airlines
25 Aug
YQB4:55 p.m.Québec City
7h 43m
1 stop
STL11:38 p.m.Lambert-St Louis
29 Aug
STL6:00 a.m.Lambert-St Louis
8h 25m
2 stops
YQB3:25 p.m.Québec City
C$ 764
United Airlines
25 Aug
YQB6:00 a.m.Québec City
9h 28m
2 stops
STL2:28 p.m.Lambert-St Louis
29 Aug
STL7:25 a.m.Lambert-St Louis
8h 06m
2 stops
YQB4:31 p.m.Québec City
C$ 765
United Airlines
16 Nov
YQB6:00 a.m.Québec City
16h 51m
1 stop
STL9:51 p.m.Lambert-St Louis
17 Nov
STL5:00 a.m.Lambert-St Louis
8h 45m
1 stop
YQB2:45 p.m.Québec City
C$ 772

momondo Fare Finder

 
Customize your flight search to find flights from Québec City to St. Louis 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 96,600 searches. Data last updated 19 July 2026.
Use the filters below to find and compare flights from Québec City to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Mon 31/8

1:05 p.m.-6:42 p.m.

1 stop6h 37m

Lambert-St Louis

Mon 7/9

8:55 a.m.-4:01 p.m.

1 stop6h 06m

C$ 736

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 25/9

2:27 p.m.-10:20 a.m.

1 stop20h 53m

Lambert-St Louis

Sun 27/9

7:27 a.m.-1:53 p.m.

1 stop5h 26m

C$ 740

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Mon 31/8

12:35 p.m.-8:24 p.m.

2 stops8h 49m

Lambert-St Louis

Mon 7/9

8:55 a.m.-4:01 p.m.

1 stop6h 06m

C$ 750

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 25/9

3:59 p.m.-10:20 a.m.

2 stops19h 21m

Lambert-St Louis

Sun 27/9

5:00 a.m.-1:53 p.m.

1 stop7h 53m

C$ 753

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Tue 25/8

4:55 p.m.-11:38 p.m.

1 stop7h 43m

Lambert-St Louis

Sat 29/8

6:00 a.m.-3:25 p.m.

2 stops8h 25m

C$ 764

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Tue 25/8

3:00 p.m.-10:00 p.m.

1 stop8h 00m

Lambert-St Louis

Sat 29/8

6:00 a.m.-2:08 p.m.

1 stop7h 08m

C$ 765

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Mon 16/11

6:00 a.m.-9:51 p.m.

1 stop16h 51m

Lambert-St Louis

Tue 17/11

7:33 a.m.-4:41 p.m.

2 stops8h 08m

C$ 772

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sun 30/8

6:00 a.m.-11:16 a.m.

1 stop6h 16m

Lambert-St Louis

Sun 6/9

6:54 p.m.-12:02 p.m.

2 stops16h 08m

C$ 785

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 25/9

3:59 p.m.-10:20 a.m.

2 stops19h 21m

Lambert-St Louis

Sun 27/9

5:18 p.m.-11:43 a.m.

2 stops17h 25m

C$ 861

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Mon 16/11

10:55 a.m.-9:13 p.m.

2 stops11h 18m

Lambert-St Louis

Tue 17/11

1:08 p.m.-10:36 p.m.

2 stops8h 28m

C$ 865

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Québec City to St. Louis

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 airline that flies from Québec City to Lambert-St Louis?

United Airlines and Air Canada are the most popular carriers operating from Québec City to Lambert-St Louis

When to book flights from Québec City to St. Louis

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

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

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

Fastest flight time

7h 43m

Direct flights

None
The fastest flight from Québec City to St. Louis takes 7h 43m
There are no direct flights from Québec City to St. Louis. There are no popular flight routes from Québec City to St. Louis.
Search flight deals

Frequently asked questions about flying from Québec City to St. Louis

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

    The straight-line distance from Québec City to Lambert-St Louis is 1790.0 km. Flights usually cover this in 7h 43m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Québec City Airport to Lambert-St Louis Airport were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Québec City Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Québec City.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Québec City with this policy.

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

momondo provides multiple filters to help you find the best flight to St. Louis from Québec City. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to St. Louis from Québec City 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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