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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 30/5. 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

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
5:00 a.m. - 12:06 p.m.
YQB
-
STL
8h 06m
1 stop
Air Canada Logo
1:05 p.m. - 7:42 p.m.
STL
-
YQB
5h 37m
1 stop
C$ 743Air Canada
Sun, 14 Jun - Mon, 15 Jun
Air Canada Logo
5:00 a.m. - 12:06 p.m.
YQB
-
STL
8h 06m
1 stop
Air Canada Logo
2:15 p.m. - 10:47 p.m.
STL
-
YQB
7h 32m
2 stops
C$ 760Air Canada
Sun, 14 Jun - Mon, 15 Jun
Air Canada Logo
5:35 a.m. - 12:06 p.m.
YQB
-
STL
7h 31m
2 stops
Air Canada Logo
1:05 p.m. - 7:42 p.m.
STL
-
YQB
5h 37m
1 stop
C$ 795Air Canada
Sun, 14 Jun - Mon, 15 Jun
Air Canada Logo
5:35 a.m. - 12:06 p.m.
YQB
-
STL
7h 31m
2 stops
Air Canada Logo
2:15 p.m. - 10:47 p.m.
STL
-
YQB
7h 32m
2 stops
C$ 811Air Canada
Sun, 14 Jun - Mon, 15 Jun
Air Canada Logo
5:35 a.m. - 12:06 p.m.
YQB
-
STL
7h 31m
2 stops
Air Canada Logo
2:15 p.m. - 11:51 a.m.
STL
-
YQB
20h 36m
2 stops
C$ 853Air Canada
Sun, 14 Jun - Mon, 15 Jun
United Airlines Logo
5:00 a.m. - 12:06 p.m.
YQB
-
STL
8h 06m
1 stop
United Airlines Logo
8:15 p.m. - 4:10 p.m.
STL
-
YQB
18h 55m
2 stops
C$ 889United Airlines
Sun, 14 Jun - Mon, 15 Jun
United Airlines Logo
5:00 a.m. - 11:57 p.m.
YQB
-
STL
19h 57m
2 stops
United Airlines Logo
8:15 p.m. - 4:10 p.m.
STL
-
YQB
18h 55m
2 stops
C$ 930United Airlines
Sun, 14 Jun - Mon, 15 Jun

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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
14 Jun
YQB5:00 a.m.Québec City
8h 06m
1 stop
STL12:06 p.m.Lambert-St Louis
15 Jun
STL1:05 p.m.Lambert-St Louis
5h 37m
1 stop
YQB7:42 p.m.Québec City
C$ 743
Air Canada
14 Jun
YQB5:00 a.m.Québec City
8h 06m
1 stop
STL12:06 p.m.Lambert-St Louis
15 Jun
STL2:15 p.m.Lambert-St Louis
7h 32m
2 stops
YQB10:47 p.m.Québec City
C$ 760
Air Canada
14 Jun
YQB5:35 a.m.Québec City
7h 31m
2 stops
STL12:06 p.m.Lambert-St Louis
15 Jun
STL1:05 p.m.Lambert-St Louis
5h 37m
1 stop
YQB7:42 p.m.Québec City
C$ 795

United Airlines flights from Québec City to St. Louis

Our best United Airlines deals on Québec City to St. Louis flight tickets
United Airlines
14 Jun
YQB5:00 a.m.Québec City
8h 06m
1 stop
STL12:06 p.m.Lambert-St Louis
15 Jun
STL8:15 p.m.Lambert-St Louis
18h 55m
2 stops
YQB4:10 p.m.Québec City
C$ 889
United Airlines
14 Jun
YQB5:00 a.m.Québec City
19h 57m
2 stops
STL11:57 p.m.Lambert-St Louis
15 Jun
STL8:15 p.m.Lambert-St Louis
18h 55m
2 stops
YQB4:10 p.m.Québec City
C$ 930
United Airlines
24 Apr
YQB3:00 p.m.Québec City
7h 52m
1 stop
STL9:52 p.m.Lambert-St Louis
28 Apr
STL7:45 a.m.Lambert-St Louis
25h 00m
2 stops
YQB9:45 a.m.Québec City
C$ 1,137

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 22 April 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

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sun 14/6

5:00 a.m.-12:06 p.m.

1 stop8h 06m

Lambert-St Louis

Mon 15/6

1:05 p.m.-7:42 p.m.

1 stop5h 37m

C$ 743

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sun 14/6

5:00 a.m.-12:06 p.m.

1 stop8h 06m

Lambert-St Louis

Mon 15/6

2:15 p.m.-10:47 p.m.

2 stops7h 32m

C$ 760
Quickest round-trip

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sun 14/6

5:35 a.m.-12:06 p.m.

2 stops7h 31m

Lambert-St Louis

Mon 15/6

1:05 p.m.-7:42 p.m.

1 stop5h 37m

C$ 795

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sun 14/6

5:35 a.m.-12:06 p.m.

2 stops7h 31m

Lambert-St Louis

Mon 15/6

2:15 p.m.-10:47 p.m.

2 stops7h 32m

C$ 811

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sun 14/6

5:35 a.m.-12:06 p.m.

2 stops7h 31m

Lambert-St Louis

Mon 15/6

2:15 p.m.-11:51 a.m.

2 stops20h 36m

C$ 853

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sun 14/6

5:00 a.m.-12:06 p.m.

1 stop8h 06m

Lambert-St Louis

Mon 15/6

8:15 p.m.-4:10 p.m.

2 stops18h 55m

C$ 889

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sun 14/6

5:00 a.m.-11:57 p.m.

2 stops19h 57m

Lambert-St Louis

Mon 15/6

8:15 p.m.-4:10 p.m.

2 stops18h 55m

C$ 930
Cheapest one-way

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sat 30/5

6:00 a.m.-3:46 p.m.

2 stops10h 46m

C$ 390

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 29/5

4:11 p.m.-10:48 a.m.

1 stop19h 37m

C$ 397
Quickest one-way

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Tue 11/8

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

1 stop6h 37m

C$ 425

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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?

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 52m

Direct flights

None
The fastest flight from Québec City to St. Louis takes 7h 52m
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 52m, 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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