$980 Cheap Flights from St. Louis (STL) to Yaounde (NSI)

View $980 flight on Tue, Jan 6, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Yaounde (NSI-Nsimalen Intl.)

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Cheap Flights from St. Louis to Yaounde (STL-NSI)

Prices were available within the past 7 days and start at $980 for one-way flights and $1,556 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Brussels Airlines
Tue, Nov 25 - Wed, Dec 3
STL
St. Louis
NSI
Yaoundé
$1,556 Roundtrip, found 2 days ago
$1,556
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Tue, Nov 25 from St. Louis to Yaoundé, returning Wed, Dec 3, priced at $1,556 found 2 days ago
Air France
Wed, Dec 24 - Wed, Jan 7
STL
St. Louis
NSI
Yaoundé
$1,653 Roundtrip, found 8 hours ago
$1,653
Roundtrip
found 8 hours ago
Select Air France flight, departing Wed, Dec 24 from St. Louis to Yaoundé, returning Wed, Jan 7, priced at $1,653 found 8 hours ago
Air France
Tue, Dec 23 - Wed, Jan 7
STL
St. Louis
NSI
Yaoundé
$1,660 Roundtrip, found 8 hours ago
$1,660
Roundtrip
found 8 hours ago
Select Air France flight, departing Tue, Dec 23 from St. Louis to Yaoundé, returning Wed, Jan 7, priced at $1,660 found 8 hours ago
KLM
Mon, Dec 22 - Wed, Jan 7
STL
St. Louis
NSI
Yaoundé
$1,778 Roundtrip, found 8 hours ago
$1,778
Roundtrip
found 8 hours ago
Select KLM flight, departing Mon, Dec 22 from St. Louis to Yaoundé, returning Wed, Jan 7, priced at $1,778 found 8 hours ago
KLM
Sat, Dec 27 - Wed, Jan 7
STL
St. Louis
NSI
Yaoundé
$1,798 Roundtrip, found 8 hours ago
$1,798
Roundtrip
found 8 hours ago
Select KLM flight, departing Sat, Dec 27 from St. Louis to Yaoundé, returning Wed, Jan 7, priced at $1,798 found 8 hours ago
United
Wed, Dec 24 - Fri, Jan 9
STL
St. Louis
NSI
Yaoundé
$1,830 Roundtrip, found 8 hours ago
$1,830
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Dec 24 from St. Louis to Yaoundé, returning Fri, Jan 9, priced at $1,830 found 8 hours ago
United
Sat, Dec 27 - Fri, Jan 9
STL
St. Louis
NSI
Yaoundé
$1,905 Roundtrip, found 8 hours ago
$1,905
Roundtrip
found 8 hours ago
Select United flight, departing Sat, Dec 27 from St. Louis to Yaoundé, returning Fri, Jan 9, priced at $1,905 found 8 hours ago
United
Mon, Dec 22 - Tue, Jan 6
STL
St. Louis
NSI
Yaoundé
$1,978 Roundtrip, found 8 hours ago
$1,978
Roundtrip
found 8 hours ago
Select United flight, departing Mon, Dec 22 from St. Louis to Yaoundé, returning Tue, Jan 6, priced at $1,978 found 8 hours ago
United
Mon, Dec 22 - Fri, Jan 9
STL
St. Louis
NSI
Yaoundé
$2,005 Roundtrip, found 8 hours ago
$2,005
Roundtrip
found 8 hours ago
Select United flight, departing Mon, Dec 22 from St. Louis to Yaoundé, returning Fri, Jan 9, priced at $2,005 found 8 hours ago
Delta
Wed, Dec 24 - Tue, Jan 6
STL
St. Louis
NSI
Yaoundé
$2,274 Roundtrip, found 6 hours ago
$2,274
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, Dec 24 from St. Louis to Yaoundé, returning Tue, Jan 6, priced at $2,274 found 6 hours ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Nsimalen Intl. Airport (NSI) cost?
Get a cheap one-way flight from $980 or cheap return flight from $1,556 from Lambert-St. Louis Intl. Airport (STL) to Nsimalen Intl. Airport (NSI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Nsimalen Intl. Airport (NSI)?
Planning your getaway for November may help you find better deals, as it's the cheapest month for flights between STL and NSI. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Nsimalen Intl. Airport (NSI)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from STL to NSI. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Nsimalen Intl. Airport (NSI)?
Direct flights from Lambert-St. Louis Intl. Airport (STL) to Nsimalen Intl. Airport (NSI) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to NSI?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Nsimalen Intl. Airport (NSI)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Nsimalen Intl. Airport (NSI) route, aim to fly before 3 PM. Later flights are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Nsimalen Intl. Airport (NSI) last-minute?
Booking your flight from STL to NSI shortly before your journey is usually more expensive. However, if there's some wiggle room with your itinerary, you could grab a cheap last-minute fare.
Is it cheaper to book a STL to NSI flight and hotel package?
Securing a STL to NSI flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our impressive range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Nsimalen Intl. Airport (NSI)?
If you reserved your STL to NSI flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Nsimalen Intl.
Airlines serving
Air France, Brussels Airlines, Delta, KLM, United
Roundtrip price
$1,556
Distance
6694 mi

Book with confidence

St. Louis to Yaounde Flights

The cheapest times to fly from St. Louis to Yaounde

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Yaounde are during the month of November. You can find some of the cheapest flights from St. Louis to Yaounde with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Yaounde

Sunday is one of the best days to book for cheap flights from St. Louis to Yaounde: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Yaounde

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Yaounde in 2025. You can also book with separate airlines for your outbound and return journeys, from $980 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Yaounde flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Yaounde airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Yaounde Flights

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*Available to One Key members.