What is the cheapest airline to fly from St. Louis to Basseterre round-trip?

Currently priced at $628, American Airlines will fly you from St. Louis to Basseterre and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. American Airlines is priced at 14% lower than the current average price of a flight leaving 3 months from now.

What is the cheapest month to book a flight from St. Louis to Basseterre?

Currently, May is the cheapest month in which you can book a flight from St. Louis to Basseterre (average of $559). Flying from St. Louis to Basseterre in December is currently the most expensive (average of $677). 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 day to fly from St. Louis to Basseterre?

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

In terms of precipitation, rainfall in Basseterre ranges from 1.9 - 5.6 inches per month. September is typically the wettest month, when rainfall can reach 5.6 in. February is typically the driest time to visit Basseterre when rainfall is around 1.9 in.

If weather is an important factor for your trip to Basseterre, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

What is the cheapest day to fly round-trip from St. Louis to Basseterre?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from St. Louis to Basseterre?

December can be a great time to fly to Basseterre from St. Louis with a flight ticket averaging about $734. Cheapflights users have found deals in the month of December for as cheap as $601. The most expensive prices can be found in the month of March.

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

When flying from St. Louis to Basseterre, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 12% versus a flight in the morning.

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

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

How can I find direct flights from St. Louis to Basseterre?

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

Can I find deals for business class flights from St. Louis to Basseterre?

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

$628+ Flights from St. Louis to Basseterre

Q: How much does it cost to fly round-trip from St. Louis to Basseterre?

Airfare is below average for this route at the moment. St. Louis to Basseterre flights typically cost between $743 and $806 in September. The cheapest round-trip price found within the last 3 days was $628 on American Airlines (Sep 22-Sep 26).

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Cheap flight deals from St. Louis to Basseterre

Round-trip from	$628 (American Airlines)
Popular in	March
Cheapest in	December
Average price	$647

From Lambert-St Louis to Basseterre Robert Bradshaw Intl

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($64 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

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Find flight deals from St. Louis to Basseterre

Cheapest flights from St. Louis to Basseterre
Explore the most affordable flight options available from St. Louis to Basseterre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Mon 9/225:28 amSTL - SKB

1 stop7h 12mAmerican Airlines

Fri 9/262:42 pmSKB - STL

1 stop10h 17mAmerican Airlines

Deal found 7/28

$628

Sun 10/264:05 pmSTL - SKB

3 stops20h 05mMultiple Airlines

Thu 10/307:15 pmSKB - STL

2 stops45h 14mMultiple Airlines

Deal found 7/28

$1,339

Best flights from St. Louis to Basseterre
Discover carefully curated flight deals from St. Louis to Basseterre that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Mon 9/225:28 amSTL - SKB

1 stop7h 12mAmerican Airlines

Fri 9/262:42 pmSKB - STL

1 stop10h 17mAmerican Airlines

Deal found 7/28

$628

Sun 10/264:05 pmSTL - SKB

3 stops20h 05mMultiple Airlines

Thu 10/307:15 pmSKB - STL

2 stops45h 14mMultiple Airlines

Deal found 7/28

$1,339

Last-minute flights from St. Louis to Basseterre
Discover last-minute flight deals from St. Louis to Basseterre. Data last updated July 29, 2025 and is based on user searches.

Mon 8/116:15 amSTL - SKB

2 stops10h 34mMultiple Airlines

Thu 8/149:40 amSKB - STL

3 stops14h 05mMultiple Airlines

Deal found 7/28

$1,686

Sun 8/175:26 amSTL - SKB

1 stop6h 56mAmerican Airlines

Wed 8/202:30 pmSKB - STL

1 stop10h 29mAmerican Airlines

Deal found 7/29

$848

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBasseterre

STL - SKB

STLSKB

Lambert-St Louis

Mon 9/22

5:28 am-1:40 pm

1 stop7h 12m

Basseterre Robert Bradshaw Intl

Fri 9/26

2:42 pm-11:59 pm

1 stop10h 17m

$628

St. LouisBasseterre

STL - SKB

STLSKB

Lambert-St Louis

Sun 10/26

4:05 pm-1:10 pm

3 stops20h 05m

Basseterre Robert Bradshaw Intl

Thu 10/30

7:15 pm-3:29 pm

2 stops45h 14m

$1,339

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from St. Louis to Basseterre

Have a flexible travel schedule? Discover the best time to fly to Basseterre 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 Basseterre

How much does it cost to fly round-trip from St. Louis to Basseterre?

Reviews of airlines servicing Basseterre

See what other customers who have flown with American Airlines from St. Louis to Basseterre have to say. You can also see how each airline compares 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 Basseterre round-trip?
Currently priced at $628, American Airlines will fly you from St. Louis to Basseterre and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. American Airlines is priced at 14% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for flights from St. Louis to Basseterre that include hotel bookings?
Yes. In addition to deals on St. Louis to Basseterre flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Basseterre?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Basseterre.
Can I find deals for business class flights from St. Louis to Basseterre?
Yes. Cheapflights offers flight deals from St. Louis to Basseterre 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 Basseterre?
Currently, May is the cheapest month in which you can book a flight from St. Louis to Basseterre (average of $559). Flying from St. Louis to Basseterre in December is currently the most expensive (average of $677). 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.

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Top airline flying from St. Louis to Basseterre

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$611	Average$742	FlexibilityNo cancel fee	On-time71%

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$628+ Cheap flights from St. Louis (STL) to Basseterre (SKB)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from St. Louis to Basseterre

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Find flight deals from St. Louis to Basseterre

Cheapest flights from St. Louis to BasseterreExplore the most affordable flight options available from St. Louis to Basseterre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from St. Louis to Basseterre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from St. Louis to Basseterre

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

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Basseterre

How much does it cost to fly round-trip from St. Louis to Basseterre?

Reviews of airlines servicing Basseterre

See what other customers who have flown with American Airlines from St. Louis to Basseterre have to say. You can also see how each airline compares 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 Basseterre. 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 Basseterre round-trip?

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

How can I find direct flights from St. Louis to Basseterre?

Can I find deals for business class flights from St. Louis to Basseterre?

What is the cheapest month to book a flight from St. Louis to Basseterre?

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 Basseterre

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

Top airline flying from St. Louis to Basseterre

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Cheapest flights from St. Louis to Basseterre
Explore the most affordable flight options available from St. Louis to Basseterre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.