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Cheap flights from Québec City to St. Louis from C$ 371

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 25/8. 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

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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
1:30 p.m. - 6:42 p.m.
YQB
-
STL
6h 12m
1 stop
Air Canada Logo
8:55 a.m. - 4:01 p.m.
STL
-
YQB
6h 06m
1 stop
C$ 715Air Canada
Thu, 16 Jul - Sat, 1 Aug
Air Canada Logo
1:30 p.m. - 6:42 p.m.
YQB
-
STL
6h 12m
1 stop
Air Canada Logo
8:55 a.m. - 4:01 p.m.
STL
-
YQB
6h 06m
1 stop
C$ 746Air Canada
Thu, 16 Jul - Sat, 1 Aug
American Airlines Logo
4:12 p.m. - 11:32 p.m.
YQB
-
STL
8h 20m
1 stop
American Airlines Logo
8:06 p.m. - 1:14 p.m.
STL
-
YQB
16h 08m
1 stop
C$ 769American Airlines
Tue, 14 Jul - Sat, 1 Aug
American Airlines Logo
4:12 p.m. - 11:32 p.m.
YQB
-
STL
8h 20m
1 stop
American Airlines Logo
6:14 a.m. - 3:30 p.m.
STL
-
YQB
8h 16m
1 stop
C$ 771American Airlines
Tue, 14 Jul - Fri, 31 Jul
United Airlines Logo
4:55 p.m. - 11:44 p.m.
YQB
-
STL
7h 49m
1 stop
United Airlines Logo
6:01 a.m. - 12:02 p.m.
STL
-
YQB
5h 01m
1 stop
C$ 807United Airlines
Wed, 1 Jul - Sat, 4 Jul
American Airlines Logo
1:48 p.m. - 10:38 a.m.
YQB
-
STL
21h 50m
1 stop
American Airlines Logo
6:55 a.m. - 1:14 p.m.
STL
-
YQB
5h 19m
1 stop
C$ 814American Airlines
Wed, 1 Jul - Tue, 7 Jul
American Airlines Logo
1:57 p.m. - 12:16 a.m.
YQB
-
STL
11h 19m
1 stop
American Airlines Logo
8:41 p.m. - 3:30 p.m.
STL
-
YQB
17h 49m
2 stops
C$ 829American Airlines
Wed, 1 Jul - Tue, 7 Jul
United Airlines Logo
3:00 p.m. - 9:29 p.m.
YQB
-
STL
7h 29m
1 stop
United Airlines Logo
1:18 p.m. - 10:41 p.m.
STL
-
YQB
8h 23m
2 stops
C$ 838United Airlines
Wed, 1 Jul - Sat, 4 Jul
United Airlines Logo
4:55 p.m. - 11:44 p.m.
YQB
-
STL
7h 49m
1 stop
United Airlines Logo
9:20 a.m. - 10:41 p.m.
STL
-
YQB
12h 21m
2 stops
C$ 839United Airlines
Wed, 1 Jul - Sat, 4 Jul
United Airlines Logo
4:55 p.m. - 11:44 p.m.
YQB
-
STL
7h 49m
1 stop
United Airlines Logo
6:01 a.m. - 12:02 p.m.
STL
-
YQB
5h 01m
1 stop
C$ 842United Airlines
Wed, 1 Jul - Sat, 4 Jul

Air Canada flights from Québec City to St. Louis

Our best Air Canada deals on Québec City to St. Louis flight tickets
Air Canada
16 Jul
YQB1:30 p.m.Québec City
6h 12m
1 stop
STL6:42 p.m.Lambert-St Louis
1 Aug
STL8:55 a.m.Lambert-St Louis
6h 06m
1 stop
YQB4:01 p.m.Québec City
C$ 715
Air Canada
16 Jul
YQB1:30 p.m.Québec City
6h 12m
1 stop
STL6:42 p.m.Lambert-St Louis
1 Aug
STL8:55 a.m.Lambert-St Louis
6h 06m
1 stop
YQB4:01 p.m.Québec City
C$ 746
Air Canada
1 Jul
YQB5:35 a.m.Québec City
9h 27m
2 stops
STL2:02 p.m.Lambert-St Louis
4 Jul
STL8:55 a.m.Lambert-St Louis
7h 32m
2 stops
YQB5:27 p.m.Québec City
C$ 861

American Airlines flights from Québec City to St. Louis

Our best American Airlines deals on Québec City to St. Louis flight tickets
American Airlines
14 Jul
YQB4:12 p.m.Québec City
8h 20m
1 stop
STL11:32 p.m.Lambert-St Louis
1 Aug
STL8:06 p.m.Lambert-St Louis
16h 08m
1 stop
YQB1:14 p.m.Québec City
C$ 769
American Airlines
14 Jul
YQB4:12 p.m.Québec City
8h 20m
1 stop
STL11:32 p.m.Lambert-St Louis
31 Jul
STL6:14 a.m.Lambert-St Louis
8h 16m
1 stop
YQB3:30 p.m.Québec City
C$ 771
American Airlines
1 Jul
YQB1:48 p.m.Québec City
21h 50m
1 stop
STL10:38 a.m.Lambert-St Louis
7 Jul
STL6:55 a.m.Lambert-St Louis
5h 19m
1 stop
YQB1:14 p.m.Québec City
C$ 814

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 7 June 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

Thu 16/7

1:30 p.m.-6:42 p.m.

1 stop6h 12m

Lambert-St Louis

Sat 1/8

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

1 stop6h 06m

C$ 715

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Thu 16/7

1:30 p.m.-6:42 p.m.

1 stop6h 12m

Lambert-St Louis

Sat 1/8

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

1 stop6h 06m

C$ 746

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Tue 14/7

4:12 p.m.-11:32 p.m.

1 stop8h 20m

Lambert-St Louis

Sat 1/8

8:06 p.m.-1:14 p.m.

1 stop16h 08m

C$ 769

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Tue 14/7

4:12 p.m.-11:32 p.m.

1 stop8h 20m

Lambert-St Louis

Fri 31/7

6:14 a.m.-3:30 p.m.

1 stop8h 16m

C$ 771

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Wed 1/7

4:55 p.m.-11:44 p.m.

1 stop7h 49m

Lambert-St Louis

Sat 4/7

6:01 a.m.-12:02 p.m.

1 stop5h 01m

C$ 807

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Wed 1/7

1:48 p.m.-10:38 a.m.

1 stop21h 50m

Lambert-St Louis

Tue 7/7

6:55 a.m.-1:14 p.m.

1 stop5h 19m

C$ 814

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Wed 1/7

1:57 p.m.-12:16 a.m.

1 stop11h 19m

Lambert-St Louis

Tue 7/7

8:41 p.m.-3:30 p.m.

2 stops17h 49m

C$ 829

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Wed 1/7

3:00 p.m.-9:29 p.m.

1 stop7h 29m

Lambert-St Louis

Sat 4/7

1:18 p.m.-10:41 p.m.

2 stops8h 23m

C$ 838

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Wed 1/7

4:55 p.m.-11:44 p.m.

1 stop7h 49m

Lambert-St Louis

Sat 4/7

9:20 a.m.-10:41 p.m.

2 stops12h 21m

C$ 839

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Wed 1/7

4:55 p.m.-11:44 p.m.

1 stop7h 49m

Lambert-St Louis

Sat 4/7

6:01 a.m.-12:02 p.m.

1 stop5h 01m

C$ 842

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

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?

American Airlines, 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 29m

Direct flights

None
The fastest flight from Québec City to St. Louis takes 7h 29m
There are no direct flights from Québec City to St. Louis. There are no popular flight routes from Québec City to St. Louis.
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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 29m, 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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