Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Québec City to St. Louis from C$ 275

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 1/10. 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

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Québec City to St. Louis

Cheap round-trip flights

United Airlines Logo
7:45 p.m. - 3:44 p.m.YQB-STL
20h 59m2 stops
United Airlines Logo
5:28 p.m. - 3:40 p.m.STL-YQB
21h 12m2 stops
C$ 793United Airlines
Find Deal
Fri, 3 Oct - Fri, 10 Oct
United Airlines Logo
6:00 a.m. - 2:25 p.m.YQB-STL
9h 25m2 stops
United Airlines Logo
6:30 a.m. - 3:52 p.m.STL-YQB
8h 22m2 stops
C$ 877United Airlines
Find Deal
Fri, 21 Nov - Sun, 23 Nov
American Airlines Logo
4:14 p.m. - 9:26 a.m.YQB-STL
18h 12m1 stop
American Airlines Logo
4:45 p.m. - 3:34 p.m.STL-YQB
21h 49m1 stop
C$ 943American Airlines
Find Deal
Fri, 3 Oct - Fri, 10 Oct

United Airlines flights from Québec City to St. Louis

Our best United Airlines deals on Québec City to St. Louis flight tickets
United Airlines
3 Oct
YQB7:45 p.m.Québec City
20h 59m
2 stops
STL3:44 p.m.Lambert-St Louis
10 Oct
STL5:28 p.m.Lambert-St Louis
21h 12m
2 stops
YQB3:40 p.m.Québec City
C$ 793
Find similar
United Airlines
21 Nov
YQB6:00 a.m.Québec City
9h 25m
2 stops
STL2:25 p.m.Lambert-St Louis
23 Nov
STL6:30 a.m.Lambert-St Louis
8h 22m
2 stops
YQB3:52 p.m.Québec City
C$ 877
Find similar

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 20 August 2025.
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

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 3/10

7:45 p.m.-3:44 p.m.

2 stops20h 59m

Lambert-St Louis

Fri 10/10

5:28 p.m.-3:40 p.m.

2 stops21h 12m

C$ 793

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 21/11

6:00 a.m.-2:25 p.m.

2 stops9h 25m

Lambert-St Louis

Sun 23/11

6:30 a.m.-3:52 p.m.

2 stops8h 22m

C$ 877

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Fri 3/10

4:14 p.m.-9:26 a.m.

1 stop18h 12m

Lambert-St Louis

Fri 10/10

4:45 p.m.-3:34 p.m.

1 stop21h 49m

C$ 943

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Wed 1/10

4:14 p.m.-1:23 p.m.

1 stop22h 09m

C$ 275

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Thu 2/10

4:14 p.m.-11:48 p.m.

1 stop8h 34m

C$ 282

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Wed 1/10

5:20 a.m.-3:44 p.m.

2 stops11h 24m

C$ 295

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Tue 30/9

7:45 p.m.-3:44 p.m.

2 stops20h 59m

C$ 321

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Thu 2/10

5:20 a.m.-3:44 p.m.

2 stops11h 24m

C$ 322

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Thu 2/10

11:00 a.m.-9:06 a.m.

3 stops47h 06m

C$ 346

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Wed 3/9

11:15 a.m.-3:18 p.m.

1 stop5h 03m

C$ 396

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 day to depart on your flight to St. Louis?

Our data shows that Thursday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 517. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 702.

What is the cheapest time of day to depart on your flight to St. Louis?

The cheapest time of day to fly to St. Louis is in the afternoon when flights can be purchased for as low as C$ 517. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 726 on average. Flights to St. Louis from Québec City in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

Direct flights

None
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 9h 25m, 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.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Chesterfield
Collinsville
Litchfield

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.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 25/8
Mon 1/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States