What is the cheapest airline to fly from St. Louis to St. John's, Saint John round-trip?

American Airlines, at $671, was found to be the cheapest airline from St. Louis to St. John's, Saint John.. American Airlines is priced at 8% lower than the current average price of a flight leaving 3 months from now.

What is the cheapest day to fly from St. Louis to St. John's, Saint John?

Travelers seeking maximum savings on their St. Louis to St. John's, Saint John flight should consider departing on Saturday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from St. Louis to St. John's, Saint John?

Users have found that flying from St. Louis to St. John's, Saint John on a Tuesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from St. Louis to St. John's, Saint John?

Flights from St. Louis to St. John's, Saint John lean towards being more expensive in July. Prices are generally better when you fly from St. Louis to St. John's, Saint John in September, with the cheapest ticket starting at $560.

Can I find deals for flights from St. Louis to St. John's that include hotel bookings?

Yes. In addition to deals on St. Louis to St. John's flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to St. John's?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to St. John's.

Can I find deals for business class flights from St. Louis to St. John's?

Yes. Cheapflights offers flight deals from St. Louis to St. John's by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$671+ Flights from St. Louis to St. John's

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from St. Louis to St. John's with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to St. John's

Round-trip from	$671 (American Airlines)
Popular in	July
Cheapest in	September
Average price	$787

From Lambert-St Louis to St. John's V.C. Bird Intl

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($68 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from St. Louis to St. John's

Cheapest flights from St. Louis to St. John's
Explore the most affordable flight options available from St. Louis to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Mon 10/275:34 amSTL - ANU

1 stop6h 46mAmerican Airlines

Fri 10/313:55 pmANU - STL

1 stop8h 14mAmerican Airlines

Deal found 6/28

$671

Best flights from St. Louis to St. John's
Discover carefully curated flight deals from St. Louis to St. John's that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 30, 2025.

Mon 10/275:34 amSTL - ANU

1 stop6h 46mAmerican Airlines

Fri 10/313:55 pmANU - STL

1 stop8h 14mAmerican Airlines

Deal found 6/28

$671

Cheapflights Fare Finder

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 - ANU

STLANU

Lambert-St Louis

Mon 10/27

5:34 am-1:20 pm

1 stop6h 46m

St. John's V.C. Bird Intl

Fri 10/31

3:55 pm-11:09 pm

1 stop8h 14m

$671

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Best time to book a flight from St. Louis to St. John's

Have a flexible travel schedule? Discover the best time to fly to St. John's from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to St. John's

What is the cheapest month to book a flight from St. Louis to St. John's, Saint John?

Currently, August is the cheapest month in which you can book a flight from St. Louis to St. John's, Saint John (average of $500). Flying from St. Louis to St. John's, Saint John in June is currently the most expensive (average of $651). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to ANU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to St. John's, Saint John as you normally would.

How much does it cost to fly round-trip from St. Louis to St. John's, Saint John?

Reviews of airlines servicing St. John's

Read reviews from past customers who have flown American Airlines from St. Louis to St. John's. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

American Airlines

7.2

Good

10,000 reviews

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

Related info for your journey

What is the cheapest airline to fly from St. Louis to St. John's, Saint John round-trip?
American Airlines, at $671, was found to be the cheapest airline from St. Louis to St. John's, Saint John.. American Airlines is priced at 8% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for flights from St. Louis to St. John's that include hotel bookings?
Yes. In addition to deals on St. Louis to St. John's flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to St. John's?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to St. John's.
Can I find deals for business class flights from St. Louis to St. John's?
Yes. Cheapflights offers flight deals from St. Louis to St. John's by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to St. John's, Saint John?
Currently, August is the cheapest month in which you can book a flight from St. Louis to St. John's, Saint John (average of $500). Flying from St. Louis to St. John's, Saint John in June is currently the most expensive (average of $651). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to St. John's

Kansas City to St. John's flights

Other flights to St. John's

Atlanta to St. John's flights

Newark to St. John's flights

John F Kennedy Intl to St. John's flights

Miami to St. John's flights

Charlotte to St. John's flights

St. John's, Saint John to San Juan Luis Munoz Marin Intl Airport flights

St. John's, Saint John to Basseterre flights

St. John's, Saint John to Roseau flights

St. John's, Saint John to Bridgetown flights

St. John's, Saint John to Simpson Bay flights

St. John's, Saint John to Port of Spain flights

St. John's, Saint John to Newark Airport flights

St. John's, Saint John to New York John F Kennedy Intl Airport flights

St. John's, Saint John to Toronto Pearson Intl Airport flights

St. John's, Saint John to Castries flights

St. John's, Saint John to Miami flights

St. John's, Saint John to Kingston flights

St. John's, Saint John to New York John F Kennedy Intl Airport flights

St. John's, Saint John to Toronto Pearson Intl Airport flights

St. John's, Saint John to Roseau flights

St. John's, Saint John to Kingston flights

Top airline flying from St. Louis to St. John's

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$624	Average$739	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$671+ Cheap flights from St. Louis (STL) to St. John's (ANU)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to St. John's with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to St. John's

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to St. John's

Cheapest flights from St. Louis to St. John'sExplore the most affordable flight options available from St. Louis to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Explore the most affordable flight options available from St. Louis to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to St. John's that are best for you.

Best time to book a flight from St. Louis to St. John's

Have a flexible travel schedule? Discover the best time to fly to St. John's from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to St. John's

What is the cheapest month to book a flight from St. Louis to St. John's, Saint John?

What is the cheapest time of day to fly from STL to ANU?

Find hourly flight availability from St. Louis to St. John's. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 30, 2025.

How much does it cost to fly round-trip from St. Louis to St. John's, Saint John?

Reviews of airlines servicing St. John's

Read reviews from past customers who have flown American Airlines from St. Louis to St. John's. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to St. John's. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from St. Louis to St. John's, Saint John round-trip?

Can I find deals for flights from St. Louis to St. John's that include hotel bookings?

How can I find direct flights from St. Louis to St. John's?

Can I find deals for business class flights from St. Louis to St. John's?

What is the cheapest month to book a flight from St. Louis to St. John's, Saint John?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to St. John's

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from St. Louis to St. John's

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from St. Louis to St. John's
Explore the most affordable flight options available from St. Louis to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.