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Cheap flights from St. Louis to St. John's from C$ 398

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to St. John's departing on 7/7. 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

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Find the cheapest flights from St. Louis to St. John's

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
1:15 p.m. - 12:35 a.m.
STL
-
YYT
8h 50m
1 stop
Air Canada Logo
1:15 p.m. - 8:05 p.m.
YYT
-
STL
9h 20m
1 stop
C$ 858Air Canada
Sun, 21 Jun - Sat, 27 Jun
Air Canada Logo
7:30 a.m. - 4:38 p.m.
STL
-
YYT
6h 38m
1 stop
Air Canada Logo
1:15 p.m. - 8:05 p.m.
YYT
-
STL
9h 20m
1 stop
C$ 865Air Canada
Mon, 25 May - Tue, 2 Jun
Air Canada Logo
1:15 p.m. - 12:35 a.m.
STL
-
YYT
8h 50m
1 stop
Air Canada Logo
5:30 a.m. - 12:21 p.m.
YYT
-
STL
9h 21m
2 stops
C$ 870Air Canada
Sun, 21 Jun - Sat, 27 Jun
Air Canada Logo
7:30 a.m. - 7:43 p.m.
STL
-
YYT
9h 43m
2 stops
Air Canada Logo
11:05 a.m. - 8:04 p.m.
YYT
-
STL
11h 29m
2 stops
C$ 872Air Canada
Mon, 25 May - Tue, 2 Jun
Air Canada Logo
4:05 p.m. - 1:38 a.m.
STL
-
YYT
7h 03m
1 stop
Air Canada Logo
5:25 a.m. - 3:24 p.m.
YYT
-
STL
12h 29m
2 stops
C$ 877Air Canada
Sat, 4 Apr - Wed, 8 Apr
Air Canada Logo
4:05 p.m. - 1:38 a.m.
STL
-
YYT
7h 03m
1 stop
Air Canada Logo
6:35 a.m. - 3:24 p.m.
YYT
-
STL
11h 19m
1 stop
C$ 906Air Canada
Sat, 4 Apr - Wed, 8 Apr
Air Canada Logo
4:05 p.m. - 12:43 p.m.
STL
-
YYT
18h 08m
2 stops
Air Canada Logo
5:25 a.m. - 3:24 p.m.
YYT
-
STL
12h 29m
2 stops
C$ 911Air Canada
Sat, 4 Apr - Wed, 8 Apr
Air Canada Logo
4:05 p.m. - 1:38 a.m.
STL
-
YYT
7h 03m
1 stop
Air Canada Logo
5:25 a.m. - 3:24 p.m.
YYT
-
STL
12h 29m
2 stops
C$ 925Air Canada
Sat, 4 Apr - Wed, 8 Apr
Air Canada Logo
4:05 p.m. - 1:38 a.m.
STL
-
YYT
7h 03m
1 stop
Air Canada Logo
6:35 a.m. - 3:24 p.m.
YYT
-
STL
11h 19m
1 stop
C$ 954Air Canada
Sat, 4 Apr - Wed, 8 Apr
Air Canada Logo
4:05 p.m. - 5:21 p.m.
STL
-
YYT
22h 46m
2 stops
Air Canada Logo
5:25 a.m. - 3:24 p.m.
YYT
-
STL
12h 29m
2 stops
C$ 958Air Canada
Sat, 4 Apr - Wed, 8 Apr

United Airlines flights from St. Louis to St. John's

Our best United Airlines deals on St. Louis to St. John's flight tickets
United Airlines
9 Jul
STL6:00 a.m.Lambert-St Louis
16h 05m
2 stops
YYT12:35 a.m.St John's
17 Jul
YYT1:15 p.m.St John's
21h 52m
2 stops
STL8:37 a.m.Lambert-St Louis
C$ 974
United Airlines
1 Jul
STL9:23 a.m.Lambert-St Louis
12h 42m
2 stops
YYT12:35 a.m.St John's
7 Jul
YYT5:30 a.m.St John's
12h 46m
2 stops
STL3:46 p.m.Lambert-St Louis
C$ 1,285

Air Canada flights from St. Louis to St. John's

Our best Air Canada deals on St. Louis to St. John's flight tickets
Air Canada
21 Jun
STL1:15 p.m.Lambert-St Louis
8h 50m
1 stop
YYT12:35 a.m.St John's
27 Jun
YYT1:15 p.m.St John's
9h 20m
1 stop
STL8:05 p.m.Lambert-St Louis
C$ 858
Air Canada
25 May
STL7:30 a.m.Lambert-St Louis
13h 28m
2 stops
YYT11:28 p.m.St John's
2 Jun
YYT1:15 p.m.St John's
9h 20m
1 stop
STL8:05 p.m.Lambert-St Louis
C$ 865
Air Canada
21 Jun
STL1:15 p.m.Lambert-St Louis
8h 50m
1 stop
YYT12:35 a.m.St John's
27 Jun
YYT5:30 a.m.St John's
9h 21m
2 stops
STL12:21 p.m.Lambert-St Louis
C$ 870

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to St. John's 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 17 February 2026.
Use the filters below to find and compare flights from St. Louis to St. John's that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sun 21/6

1:15 p.m.-12:35 a.m.

1 stop8h 50m

St John's

Sat 27/6

1:15 p.m.-8:05 p.m.

1 stop9h 20m

C$ 858

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Mon 25/5

7:30 a.m.-4:38 p.m.

1 stop6h 38m

St John's

Tue 2/6

1:15 p.m.-8:05 p.m.

1 stop9h 20m

C$ 865

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sun 21/6

1:15 p.m.-12:35 a.m.

1 stop8h 50m

St John's

Sat 27/6

5:30 a.m.-12:21 p.m.

2 stops9h 21m

C$ 870

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Mon 25/5

7:30 a.m.-7:43 p.m.

2 stops9h 43m

St John's

Tue 2/6

11:05 a.m.-8:04 p.m.

2 stops11h 29m

C$ 872

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 4/4

4:05 p.m.-1:38 a.m.

1 stop7h 03m

St John's

Wed 8/4

5:25 a.m.-3:24 p.m.

2 stops12h 29m

C$ 877

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 4/4

4:05 p.m.-1:38 a.m.

1 stop7h 03m

St John's

Wed 8/4

6:35 a.m.-3:24 p.m.

1 stop11h 19m

C$ 906

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 4/4

4:05 p.m.-12:43 p.m.

2 stops18h 08m

St John's

Wed 8/4

5:25 a.m.-3:24 p.m.

2 stops12h 29m

C$ 911

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 4/4

4:05 p.m.-1:38 a.m.

1 stop7h 03m

St John's

Wed 8/4

5:25 a.m.-3:24 p.m.

2 stops12h 29m

C$ 925

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 4/4

4:05 p.m.-1:38 a.m.

1 stop7h 03m

St John's

Wed 8/4

6:35 a.m.-3:24 p.m.

1 stop11h 19m

C$ 954

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 4/4

4:05 p.m.-5:21 p.m.

2 stops22h 46m

St John's

Wed 8/4

5:25 a.m.-3:24 p.m.

2 stops12h 29m

C$ 958

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to St. John's from

How to get the cheapest flight ticket from St. Louis to St. John's

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 Lambert-St Louis to St John's?

Air Canada and American Airlines are the most popular carriers operating from Lambert-St Louis to St John's

When to book flights from St. Louis to St. John's

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

Cheap St. Louis to St. John's (STL to YYT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to St. John's

Fastest flight time

20h 32m

Direct flights

None
The fastest flight from St. Louis to St. John's takes 20h 32m
There are no direct flights from St. Louis to St. John's. There are no popular flight routes from St. Louis to St. John's.
Search flight deals

  • How far is Lambert-St Louis to St John's by plane?

    Lambert-St Louis and St John's are 3164.5 km apart from one another. A reasonable flight in good conditions will take 20h 32m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to St John's Airport?

    Prices for flights from Lambert-St Louis Airport to St John's Airport are updated daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to St John's Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to St John's Airport.

  • What documentation or ID do you need to fly to St John's Airport?

    The necessary travel and health documents for your St John's 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 St. Louis to St. John's?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to St. John's. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to St. John's with flexible booking policies on momondo?

momondo does allow users to show only those flights to St. John's from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to St. John's?

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

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

If you are simply researching potential flights to St. John's, momondo offers a useful price alert feature which will track prices for flights to St. John's from St. Louis and alert you when they change.

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