St. John's

$637+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANU
oct. 17 — oct. 241
We work with more than 300 partners to bring you better travel deals

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

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to St. John's (ANU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 17, 2025.

Round-trip from

$637
(Delta)

Popular in

November

Cheapest in

May

Average price

$695
From Lambert-St Louis to St. John's V.C. Bird Intl
Highest demand for flights based on searches. 4% potential increase in price ($34 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Average for round-trip flights in September 2025

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 septiembre 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/96:45 pmSTL - ANU
2 stops20h 01mAmerican Airlines
mié. 11/122:15 pmANU - STL
2 stops10h 52mAmerican Airlines
Deal found 9/17$705
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/155:23 amSTL - ANU
1 stop7h 28mAmerican Airlines
mié. 10/222:55 pmANU - STL
1 stop10h 01mAmerican Airlines
Deal found 9/15$731
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/185:09 pmSTL - ANU
2 stops21h 28mAmerican Airlines
vie. 10/241:10 pmANU - STL
2 stops20h 43mAmerican Airlines
Deal found 9/16$735
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/99:12 amSTL - ANU
2 stops29h 34mAmerican Airlines
jue. 11/132:15 pmANU - STL
1 stop10h 12mAmerican Airlines
Deal found 9/15$845
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/305:28 amSTL - ANU
1 stop8h 41mAmerican Airlines
vie. 10/34:09 pmANU - STL
1 stop8h 50mAmerican Airlines
Deal found 9/16$1,095
This Mytrip deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/912:31 pmSTL - ANU
3 stops21h 09mMultiple Airlines
mié. 11/124:20 pmANU - STL
2 stops24h 05mMultiple Airlines
Deal found 9/17$1,133

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated septiembre 17, 2025.
Use the filters below to find and compare flights from St. Louis to St. John's that are best for you.

Fly from

St. Louis

Fly to

St. John's

Route

Depart

Return

Price

St. LouisSt. John's

STL - ANU

STLANU

Lambert-St Louis

mar. 3/10

6:00 am-1:45 pm

1 stop6h 45m

St. John's V.C. Bird Intl

mar. 3/17

3:05 pm-11:40 pm

1 stop9h 35m

$637

St. LouisSt. John's

STL - ANU

STLANU

Lambert-St Louis

mar. 3/10

4:43 pm-1:20 pm

2 stops19h 37m

St. John's V.C. Bird Intl

mar. 3/17

2:10 pm-11:37 pm

1 stop10h 27m

$675

St. LouisSt. John's

STL - ANU

STLANU

Lambert-St Louis

dom. 11/9

6:45 pm-4:46 pm

2 stops20h 01m

St. John's V.C. Bird Intl

mié. 11/12

2:15 pm-10:27 pm

1 stop10h 12m

$705

St. LouisSt. John's

STL - ANU

STLANU

Lambert-St Louis

mié. 10/15

5:23 am-1:51 pm

1 stop7h 28m

St. John's V.C. Bird Intl

mié. 10/22

2:55 pm-11:56 pm

1 stop10h 01m

$731

St. LouisSt. John's

STL - ANU

STLANU

Lambert-St Louis

sáb. 10/18

5:09 pm-3:37 pm

2 stops21h 28m

St. John's V.C. Bird Intl

vie. 10/24

1:10 pm-8:53 am

2 stops20h 43m

$735

St. LouisSt. John's

STL - ANU

STLANU

Lambert-St Louis

jue. 2/12

7:30 am-4:05 pm

1 stop6h 35m

St. John's V.C. Bird Intl

vie. 2/20

5:15 pm-11:46 pm

1 stop8h 31m

$746

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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.

Reviews of airlines servicing St. John's

Get insights into the airlines that provide service to St. John's. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. John's. Reviews last updated septiembre 17, 2025.
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.

Entertainment

6.9

Food

6.4

Comfort

7.2

Overall

7.2

Boarding

7.5

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Entertainment

6.9

Food

6.4

Comfort

7.2

Overall

7.2

Boarding

7.5

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

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.
  • How long is the flight from St. Louis to St. John's, Saint John?

    There are many flights that can get you from St. Louis to St. John's, Saint John in 6h 45m. Fly via Delta or American Airlines to get the fastest option. Airlines will cover a distance of 2277 mi. This flight may include one or multiple stops.

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

    American Airlines, at $654, was found to be the cheapest airline from St. Louis to St. John's, Saint John.. American Airlines is priced at 18% 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

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

Discover the top airline that operate flights from St. Louis to St. John's. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$654Average$764FlexibilityNo cancel feeOn-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.