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Cheap flights from Québec City to St. Louis from C$ 399

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 31/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
United Airlines Logo
4:55 p.m. - 11:35 p.m.
YQB
-
STL
7h 40m
1 stop
United Airlines Logo
6:00 a.m. - 12:02 p.m.
STL
-
YQB
5h 02m
1 stop
C$ 696United Airlines
Sat, 23 May - Wed, 27 May
United Airlines Logo
4:55 p.m. - 11:45 p.m.
YQB
-
STL
7h 50m
1 stop
United Airlines Logo
6:55 p.m. - 11:41 a.m.
STL
-
YQB
15h 46m
2 stops
C$ 697United Airlines
Mon, 27 Jul - Mon, 10 Aug
United Airlines Logo
3:00 p.m. - 9:13 p.m.
YQB
-
STL
7h 13m
1 stop
United Airlines Logo
8:21 a.m. - 10:41 p.m.
STL
-
YQB
13h 20m
2 stops
C$ 715United Airlines
Tue, 14 Apr - Sat, 18 Apr
United Airlines Logo
6:00 a.m. - 11:41 a.m.
YQB
-
STL
6h 41m
1 stop
United Airlines Logo
6:00 a.m. - 12:02 p.m.
STL
-
YQB
5h 02m
1 stop
C$ 716United Airlines
Sat, 23 May - Wed, 27 May
United Airlines Logo
3:00 p.m. - 11:11 p.m.
YQB
-
STL
9h 11m
1 stop
United Airlines Logo
8:15 p.m. - 12:02 p.m.
STL
-
YQB
14h 47m
2 stops
C$ 718United Airlines
Thu, 16 Apr - Thu, 23 Apr
United Airlines Logo
6:00 a.m. - 9:13 p.m.
YQB
-
STL
16h 13m
2 stops
United Airlines Logo
6:30 a.m. - 2:03 p.m.
STL
-
YQB
6h 33m
1 stop
C$ 724United Airlines
Fri, 3 Apr - Thu, 9 Apr
Air Canada Logo
2:50 p.m. - 8:25 p.m.
YQB
-
STL
6h 35m
1 stop
Air Canada Logo
7:05 a.m. - 1:30 p.m.
STL
-
YQB
5h 25m
1 stop
C$ 728Air Canada
Fri, 22 May - Mon, 1 Jun
Air Canada Logo
10:40 a.m. - 3:25 p.m.
YQB
-
STL
5h 45m
1 stop
Air Canada Logo
7:45 a.m. - 2:03 p.m.
STL
-
YQB
5h 18m
1 stop
C$ 774Air Canada
Fri, 3 Apr - Thu, 9 Apr
United Airlines Logo
10:20 a.m. - 9:18 p.m.
YQB
-
STL
11h 58m
2 stops
United Airlines Logo
9:23 a.m. - 10:41 p.m.
STL
-
YQB
12h 18m
3 stops
C$ 782United Airlines
Sat, 23 May - Wed, 27 May
United Airlines Logo
3:05 p.m. - 9:16 p.m.
YQB
-
STL
7h 11m
1 stop
United Airlines Logo
9:23 a.m. - 10:41 p.m.
STL
-
YQB
12h 18m
3 stops
C$ 787United Airlines
Fri, 22 May - Mon, 1 Jun

United Airlines flights from Québec City to St. Louis

Our best United Airlines deals on Québec City to St. Louis flight tickets
United Airlines
23 May
YQB4:55 p.m.Québec City
7h 40m
1 stop
STL11:35 p.m.Lambert-St Louis
27 May
STL6:00 a.m.Lambert-St Louis
5h 02m
1 stop
YQB12:02 p.m.Québec City
C$ 696
United Airlines
27 Jul
YQB4:55 p.m.Québec City
7h 50m
1 stop
STL11:45 p.m.Lambert-St Louis
10 Aug
STL6:55 p.m.Lambert-St Louis
15h 46m
2 stops
YQB11:41 a.m.Québec City
C$ 697
United Airlines
14 Apr
YQB3:00 p.m.Québec City
7h 13m
1 stop
STL9:13 p.m.Lambert-St Louis
18 Apr
STL8:21 a.m.Lambert-St Louis
13h 20m
2 stops
YQB10:41 p.m.Québec City
C$ 715

Air Canada flights from Québec City to St. Louis

Our best Air Canada deals on Québec City to St. Louis flight tickets
Air Canada
22 May
YQB2:50 p.m.Québec City
6h 35m
1 stop
STL8:25 p.m.Lambert-St Louis
1 Jun
STL7:05 a.m.Lambert-St Louis
5h 25m
1 stop
YQB1:30 p.m.Québec City
C$ 728
Air Canada
3 Apr
YQB10:40 a.m.Québec City
5h 45m
1 stop
STL3:25 p.m.Lambert-St Louis
9 Apr
STL7:45 a.m.Lambert-St Louis
5h 18m
1 stop
YQB2:03 p.m.Québec City
C$ 774
Air Canada
14 Apr
YQB1:40 p.m.Québec City
9h 12m
2 stops
STL9:52 p.m.Lambert-St Louis
18 Apr
STL11:15 a.m.Lambert-St Louis
10h 25m
2 stops
YQB10:40 p.m.Québec City
C$ 800

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 5 March 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

Sat 23/5

4:55 p.m.-11:35 p.m.

1 stop7h 40m

Lambert-St Louis

Wed 27/5

6:00 a.m.-12:02 p.m.

1 stop5h 02m

C$ 696

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Mon 27/7

4:55 p.m.-11:45 p.m.

1 stop7h 50m

Lambert-St Louis

Mon 10/8

6:55 p.m.-11:41 a.m.

2 stops15h 46m

C$ 697

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Tue 14/4

3:00 p.m.-9:13 p.m.

1 stop7h 13m

Lambert-St Louis

Sat 18/4

8:21 a.m.-10:41 p.m.

2 stops13h 20m

C$ 715

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sat 23/5

6:00 a.m.-11:41 a.m.

1 stop6h 41m

Lambert-St Louis

Wed 27/5

6:00 a.m.-12:02 p.m.

1 stop5h 02m

C$ 716

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Thu 16/4

3:00 p.m.-11:11 p.m.

1 stop9h 11m

Lambert-St Louis

Thu 23/4

8:15 p.m.-12:02 p.m.

2 stops14h 47m

C$ 718

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 3/4

6:00 a.m.-9:13 p.m.

2 stops16h 13m

Lambert-St Louis

Thu 9/4

6:30 a.m.-2:03 p.m.

1 stop6h 33m

C$ 724

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 22/5

2:50 p.m.-8:25 p.m.

1 stop6h 35m

Lambert-St Louis

Mon 1/6

7:05 a.m.-1:30 p.m.

1 stop5h 25m

C$ 728
Quickest round-trip

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 3/4

10:40 a.m.-3:25 p.m.

1 stop5h 45m

Lambert-St Louis

Thu 9/4

7:45 a.m.-2:03 p.m.

1 stop5h 18m

C$ 774

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sat 23/5

10:20 a.m.-9:18 p.m.

2 stops11h 58m

Lambert-St Louis

Wed 27/5

9:23 a.m.-10:41 p.m.

3 stops12h 18m

C$ 782

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 22/5

3:05 p.m.-9:16 p.m.

1 stop7h 11m

Lambert-St Louis

Mon 1/6

9:23 a.m.-10:41 p.m.

3 stops12h 18m

C$ 787

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 40m

Direct flights

None
The fastest flight from Québec City to St. Louis takes 7h 40m
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

  • 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 40m, 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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