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Cheap flights from St. Louis to St. John's from C$ 451

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 28/6. 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 St. Louis to St. John's

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
2:40 p.m. - 1:46 a.m.
STL
-
YYT
8h 36m
1 stop
Air Canada Logo
5:35 a.m. - 2:00 p.m.
YYT
-
STL
10h 55m
2 stops
C$ 957Air Canada
Sat, 19 Sep - Wed, 23 Sep
Air Canada Logo
8:55 a.m. - 7:05 p.m.
STL
-
YYT
7h 40m
1 stop
Air Canada Logo
2:05 p.m. - 6:42 p.m.
YYT
-
STL
7h 07m
1 stop
C$ 987Air Canada
Mon, 24 Aug - Thu, 27 Aug
Air Canada Logo
2:40 p.m. - 11:21 p.m.
STL
-
YYT
6h 11m
1 stop
Air Canada Logo
1:15 p.m. - 6:41 p.m.
YYT
-
STL
7h 56m
1 stop
C$ 1,070Air Canada
Sat, 19 Sep - Wed, 23 Sep
Air Canada Logo
12:59 p.m. - 12:33 a.m.
STL
-
YYT
9h 04m
2 stops
Air Canada Logo
5:35 a.m. - 2:00 p.m.
YYT
-
STL
10h 55m
2 stops
C$ 1,107Air Canada
Sat, 19 Sep - Wed, 23 Sep
American Airlines Logo
6:03 a.m. - 11:20 p.m.
STL
-
YYT
14h 47m
2 stops
American Airlines Logo
10:00 a.m. - 10:40 p.m.
YYT
-
STL
15h 10m
3 stops
C$ 1,444American Airlines
Fri, 14 Aug - Tue, 18 Aug

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
19 Sep
STL2:40 p.m.Lambert-St Louis
8h 36m
1 stop
YYT1:46 a.m.St John's
23 Sep
YYT5:35 a.m.St John's
10h 55m
2 stops
STL2:00 p.m.Lambert-St Louis
C$ 957
Air Canada
24 Aug
STL8:55 a.m.Lambert-St Louis
7h 40m
1 stop
YYT7:05 p.m.St John's
27 Aug
YYT2:05 p.m.St John's
7h 07m
1 stop
STL6:42 p.m.Lambert-St Louis
C$ 987
Air Canada
19 Sep
STL2:40 p.m.Lambert-St Louis
6h 11m
1 stop
YYT11:21 p.m.St John's
23 Sep
YYT1:15 p.m.St John's
7h 56m
1 stop
STL6:41 p.m.Lambert-St Louis
C$ 1,070

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 26 May 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

Cheapest round-trip

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 19/9

2:40 p.m.-1:46 a.m.

1 stop8h 36m

St John's

Wed 23/9

5:35 a.m.-2:00 p.m.

2 stops10h 55m

C$ 957

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Mon 24/8

8:55 a.m.-7:05 p.m.

1 stop7h 40m

St John's

Thu 27/8

2:05 p.m.-6:42 p.m.

1 stop7h 07m

C$ 987
Quickest round-trip

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 19/9

2:40 p.m.-11:21 p.m.

1 stop6h 11m

St John's

Wed 23/9

1:15 p.m.-6:41 p.m.

1 stop7h 56m

C$ 1,070

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 19/9

12:59 p.m.-12:33 a.m.

2 stops9h 04m

St John's

Wed 23/9

5:35 a.m.-2:00 p.m.

2 stops10h 55m

C$ 1,107

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Fri 14/8

6:03 a.m.-11:20 p.m.

2 stops14h 47m

St John's

Tue 18/8

10:00 a.m.-10:40 p.m.

3 stops15h 10m

C$ 1,444
Cheapest one-way

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sun 28/6

1:20 p.m.-12:45 a.m.

1 stop8h 55m

C$ 451
Quickest one-way

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Mon 13/7

2:40 p.m.-1:46 a.m.

1 stop8h 36m

C$ 458

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Mon 13/7

8:55 a.m.-11:28 p.m.

2 stops12h 03m

C$ 493

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sun 28/6

6:31 p.m.-12:56 a.m.

3 stops27h 55m

C$ 585

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sun 28/6

6:00 a.m.-1:46 a.m.

2 stops17h 16m

C$ 678

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 is the most popular carrier 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

8h 36m

Direct flights

None
The fastest flight from St. Louis to St. John's takes 8h 36m
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.
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Frequently asked questions about flying from St. Louis to St. John's

  • 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 8h 36m.

  • 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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