Cheap flights from St. Louis to St. John's from $730

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 2/18. 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
0 bags

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Air Canada Logo
4:05 pm - 12:45 pmSTL-YYT
18h 10m2 stops
Air Canada Logo
8:55 pm - 3:29 pmYYT-STL
21h 04m2 stops
$730Air Canada
Find Deal
Wed, Feb 18 - Sun, Feb 22
Air Canada Logo
4:05 pm - 12:45 pmSTL-YYT
18h 10m2 stops
Air Canada Logo
8:55 pm - 3:29 pmYYT-STL
21h 04m2 stops
$731Air Canada
Find Deal
Wed, Feb 18 - Sun, Feb 22
Air Canada Logo
4:05 pm - 9:35 amSTL-YYT
15h 00m2 stops
Air Canada Logo
6:35 am - 3:29 pmYYT-STL
11h 24m1 stop
$839Air Canada
Find Deal
Wed, Feb 18 - Sun, Feb 22
Air Canada Logo
4:05 pm - 1:33 amSTL-YYT
6h 58m1 stop
Air Canada Logo
5:00 am - 3:29 pmYYT-STL
12h 59m1 stop
$918Air Canada
Find Deal
Wed, Feb 18 - Sun, Feb 22

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
Feb 18
STL4:05 pmLambert-St Louis
18h 10m
2 stops
YYT12:45 pmSt John's
Feb 22
YYT8:55 pmSt John's
21h 04m
2 stops
STL3:29 pmLambert-St Louis
Air Canada
Feb 18
STL4:05 pmLambert-St Louis
18h 10m
2 stops
YYT12:45 pmSt John's
Feb 22
YYT8:55 pmSt John's
21h 04m
2 stops
STL3:29 pmLambert-St Louis
Air Canada
Feb 18
STL4:05 pmLambert-St Louis
15h 00m
2 stops
YYT9:35 amSt John's
Feb 22
YYT6:35 amSt John's
11h 24m
1 stop
STL3:29 pmLambert-St Louis

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 October 6, 2025.
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

Wed 2/18

4:05 pm-12:45 pm

2 stops18h 10m

St John's

Sun 2/22

8:55 pm-3:29 pm

2 stops21h 04m

$730

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Wed 2/18

4:05 pm-12:45 pm

2 stops18h 10m

St John's

Sun 2/22

8:55 pm-3:29 pm

2 stops21h 04m

$731

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Wed 2/18

4:05 pm-9:35 am

2 stops15h 00m

St John's

Sun 2/22

6:35 am-3:29 pm

1 stop11h 24m

$839

St. LouisSt. John's

STL - YYT

STLYYT

Lambert-St Louis

Wed 2/18

4:05 pm-1:33 am

1 stop6h 58m

St John's

Sun 2/22

5:00 am-3:29 pm

1 stop12h 59m

$918

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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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 day to depart on your flight to St. John's?

Our data shows that Thursday is the least expensive day to fly to St. John's. Tickets to fly out on this day can be as low as $668. Flights from St. Louis to St. John's on a Tuesday will generally be more expensive and average around $926. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to St. John's?

The cheapest time of day to fly to St. John's is in the afternoon when flights can be purchased for as low as $776. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $795 on average. Flights to St. John's from St. Louis in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
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 6h 58m 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
10,000 reviews
Search Air Canada flights

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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?

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1 adult
Wed 11/5
Wed 11/12

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