Cheap flights from St. Louis to St. John's from $658

This is the cheapest round-trip 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 6/16. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? 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.

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
1:00 pm - 12:36 am
STL
-
YYT
9h 06m
1 stop
Air Canada Logo
5:35 am - 12:21 pm
YYT
-
STL
9h 16m
2 stops
$658Air Canada
Tue, Jun 16 - Wed, Jun 24
Air Canada Logo
7:05 am - 7:43 pm
STL
-
YYT
10h 08m
2 stops
Air Canada Logo
5:35 am - 12:21 pm
YYT
-
STL
9h 16m
2 stops
$663Air Canada
Tue, Jun 16 - Wed, Jun 24
Air Canada Logo
1:00 pm - 12:41 am
STL
-
YYT
9h 11m
1 stop
Air Canada Logo
2:00 pm - 8:25 pm
YYT
-
STL
8h 55m
1 stop
$680Air Canada
Mon, May 25 - Tue, Jun 2
Air Canada Logo
1:00 pm - 12:41 am
STL
-
YYT
9h 11m
1 stop
Air Canada Logo
5:00 am - 12:06 pm
YYT
-
STL
9h 36m
1 stop
$685Air Canada
Mon, May 25 - Tue, Jun 2
Air Canada Logo
7:05 am - 11:28 pm
STL
-
YYT
13h 53m
2 stops
Air Canada Logo
5:35 am - 12:06 pm
YYT
-
STL
9h 01m
2 stops
$688Air Canada
Mon, May 25 - Tue, Jun 2
Air Canada Logo
7:05 am - 11:28 pm
STL
-
YYT
13h 53m
2 stops
Air Canada Logo
2:00 pm - 8:25 pm
YYT
-
STL
8h 55m
1 stop
$690Air Canada
Mon, May 25 - Tue, Jun 2
Air Canada Logo
4:05 pm - 1:38 am
STL
-
YYT
7h 03m
1 stop
Air Canada Logo
5:25 am - 3:25 pm
YYT
-
STL
12h 30m
2 stops
$698Air Canada
Sat, Apr 4 - Wed, Apr 8
Air Canada Logo
7:05 am - 11:28 pm
STL
-
YYT
13h 53m
2 stops
Air Canada Logo
5:35 am - 12:06 pm
YYT
-
STL
9h 01m
2 stops
$699Air Canada
Mon, May 25 - Tue, Jun 2
Air Canada Logo
4:05 pm - 1:38 am
STL
-
YYT
7h 03m
1 stop
Air Canada Logo
5:00 am - 3:25 pm
YYT
-
STL
12h 55m
1 stop
$720Air Canada
Sat, Apr 4 - Wed, Apr 8
Air Canada Logo
4:05 pm - 12:43 pm
STL
-
YYT
18h 08m
2 stops
Air Canada Logo
5:25 am - 3:25 pm
YYT
-
STL
12h 30m
2 stops
$723Air Canada
Sat, Apr 4 - Wed, Apr 8

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
Jun 16
STL1:00 pmLambert-St Louis
9h 06m
1 stop
YYT12:36 amSt John's
Jun 24
YYT5:35 amSt John's
9h 16m
2 stops
STL12:21 pmLambert-St Louis
$658
Air Canada
Jun 16
STL7:05 amLambert-St Louis
10h 08m
2 stops
YYT7:43 pmSt John's
Jun 24
YYT5:35 amSt John's
9h 16m
2 stops
STL12:21 pmLambert-St Louis
$663
Air Canada
May 25
STL1:00 pmLambert-St Louis
9h 11m
1 stop
YYT12:41 amSt John's
Jun 2
YYT2:00 pmSt John's
8h 55m
1 stop
STL8:25 pmLambert-St Louis
$680

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
Apr 24
STL9:10 amLambert-St Louis
11h 33m
2 stops
YYT11:13 pmSt John's
May 1
YYT5:00 amSt John's
9h 36m
1 stop
STL12:06 pmLambert-St Louis
$780
United Airlines
Apr 24
STL9:10 amLambert-St Louis
11h 33m
2 stops
YYT11:13 pmSt John's
May 1
YYT5:35 amSt John's
17h 38m
2 stops
STL8:43 pmLambert-St Louis
$785

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 832,500 searches. Data last updated March 11, 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

Tue 6/16

1:00 pm-12:36 am

1 stop9h 06m

St John's

Wed 6/24

5:35 am-12:21 pm

2 stops9h 16m

$658

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Tue 6/16

7:05 am-7:43 pm

2 stops10h 08m

St John's

Wed 6/24

5:35 am-12:21 pm

2 stops9h 16m

$663
Quickest round-trip

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Mon 5/25

1:00 pm-12:41 am

1 stop9h 11m

St John's

Tue 6/2

2:00 pm-8:25 pm

1 stop8h 55m

$680

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Mon 5/25

1:00 pm-12:41 am

1 stop9h 11m

St John's

Tue 6/2

5:00 am-12:06 pm

1 stop9h 36m

$685

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Mon 5/25

7:05 am-11:28 pm

2 stops13h 53m

St John's

Tue 6/2

5:35 am-12:06 pm

2 stops9h 01m

$688

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Mon 5/25

7:05 am-11:28 pm

2 stops13h 53m

St John's

Tue 6/2

2:00 pm-8:25 pm

1 stop8h 55m

$690

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 4/4

4:05 pm-1:38 am

1 stop7h 03m

St John's

Wed 4/8

5:25 am-3:25 pm

2 stops12h 30m

$698

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Mon 5/25

7:05 am-11:28 pm

2 stops13h 53m

St John's

Tue 6/2

5:35 am-12:06 pm

2 stops9h 01m

$699

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 4/4

4:05 pm-1:38 am

1 stop7h 03m

St John's

Wed 4/8

5:00 am-3:25 pm

1 stop12h 55m

$720

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Sat 4/4

4:05 pm-12:43 pm

2 stops18h 08m

St John's

Wed 4/8

5:25 am-3:25 pm

2 stops12h 30m

$723

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

7h 03m

Direct flights

None
The fastest flight from St. Louis to St. John's takes 7h 03m
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.
  • How far is Lambert-St Louis to St John's by plane?

    A flight from Lambert-St Louis to St John's will travel around 1966.3 mi. Typically, this will take 7h 03m by plane in normal conditions.

  • 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 many operators does momondo search for flights from Lambert-St Louis Airport to St John's Airport?

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

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

    The required travel and health documents for your St John's Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at St John's Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from St. Louis to St. John's?

Best airlines flying from St. Louis to St. John's

Compare and see reviews for airlines that fly from St. Louis to St. John's with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $811Free CancellationRating
7.1
10,800 reviews
Search Air Canada flights
  • How do I get Price Alerts for flights from St. Louis to St. John's?

    Price Alerts will notify you by email when the price for flights to St. John's from St. Louis decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from St. Louis to St. John's with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to St. John's?

Finding the right flight to St. John's from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. John's quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to St. John's from St. Louis with this policy.

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

momondo helps you find the best flight between St. Louis and St. John's by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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 not ready to book a flight from St. Louis to St. John's now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. John's and let you know when they change.

An easier way to manage your St. John's 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 4/10
Fri 4/17

Find better results for your trip to Canada