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Cheap flights from St. Louis to Sierra Leone from $1,863

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 Sierra Leone departing on 9/28. 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
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Sierra Leone

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:30 am - 5:25 pmSTL  Lambert-St Louis-FNA Freetown Lungi Intl
26h 55m2 stops Newark Brussels Bruxelles-National
Multiple Airlines Logo
7:45 pm - 9:40 pmFNA  Freetown Lungi Intl-STL Lambert-St Louis
30h 55m3 stops Conakry Brussels Bruxelles-National Chicago O'Hare Intl
$1,863Multiple Airlines
Mon, Sep 28 - Mon, Oct 26
Brussels Airlines Logo
12:10 pm - 5:25 pmSTL  Lambert-St Louis-FNA Freetown Lungi Intl
24h 15m3 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main Brussels Bruxelles-National
Brussels Airlines Logo
7:45 pm - 9:40 pmFNA  Freetown Lungi Intl-STL Lambert-St Louis
30h 55m3 stops Conakry Brussels Bruxelles-National Chicago O'Hare Intl
$1,907Brussels Airlines
Mon, Sep 28 - Mon, Oct 26
United Airlines Logo
5:36 pm - 5:25 pmSTL  Lambert-St Louis-FNA Freetown Lungi Intl
42h 49m2 stops Chicago O'Hare Intl Brussels Bruxelles-National
United Airlines Logo
6:35 pm - 5:01 pmFNA  Freetown Lungi Intl-STL Lambert-St Louis
27h 26m3 stops Conakry Brussels Bruxelles-National Chicago O'Hare Intl
$2,201United Airlines
Fri, Oct 16 - Mon, Oct 19
United Airlines Logo
5:36 pm - 5:25 pmSTL  Lambert-St Louis-FNA Freetown Lungi Intl
42h 49m2 stops Chicago O'Hare Intl Brussels Bruxelles-National
United Airlines Logo
6:35 pm - 5:01 pmFNA  Freetown Lungi Intl-STL Lambert-St Louis
27h 26m3 stops Conakry Brussels Bruxelles-National Chicago O'Hare Intl
$2,202United Airlines
Fri, Oct 16 - Mon, Oct 19
Ethiopian Air Logo
8:30 am - 4:45 pmSTL  Lambert-St Louis-FNA Freetown Lungi Intl
51h 15m3 stops Washington, D.C. Dulles Intl Addis Ababa Bole Monrovia Roberts Intl
Ethiopian Air Logo
9:00 am - 10:12 amFNA  Freetown Lungi Intl-STL Lambert-St Louis
54h 12m4 stops Monrovia Roberts Intl Addis Ababa Bole Rome Fiumicino Washington, D.C. Dulles Intl
$4,454Ethiopian Air
Mon, Sep 28 - Mon, Oct 26
Ethiopian Air Logo
8:30 am - 4:45 pmSTL  Lambert-St Louis-FNA Freetown Lungi Intl
51h 15m4 stops Washington, D.C. Dulles Intl Lome Addis Ababa Bole Monrovia Roberts Intl
Ethiopian Air Logo
9:00 am - 10:12 amFNA  Freetown Lungi Intl-STL Lambert-St Louis
54h 12m4 stops Monrovia Roberts Intl Addis Ababa Bole Rome Fiumicino Washington, D.C. Dulles Intl
$5,706Ethiopian Air
Mon, Sep 28 - Mon, Oct 26

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Ethiopian Air flights from St. Louis to Sierra Leone

Our best Ethiopian Air deals on St. Louis to Sierra Leone flight tickets
Ethiopian Air
Sep 28
STL8:30 amLambert-St Louis
51h 15m
3 stops
FNA4:45 pmFreetown Lungi Intl
Oct 26
FNA9:00 amFreetown Lungi Intl
54h 12m
4 stops
STL10:12 amLambert-St Louis
$4,454
Ethiopian Air
Sep 28
STL8:30 amLambert-St Louis
51h 15m
4 stops
FNA4:45 pmFreetown Lungi Intl
Oct 26
FNA9:00 amFreetown Lungi Intl
54h 12m
4 stops
STL10:12 amLambert-St Louis
$5,706

United Airlines flights from St. Louis to Sierra Leone

Our best United Airlines deals on St. Louis to Sierra Leone flight tickets
United Airlines
Oct 16
STL5:36 pmLambert-St Louis
42h 49m
2 stops
FNA5:25 pmFreetown Lungi Intl
Oct 19
FNA6:35 pmFreetown Lungi Intl
27h 26m
3 stops
STL5:01 pmLambert-St Louis
$2,201
United Airlines
Oct 16
STL5:36 pmLambert-St Louis
42h 49m
2 stops
FNA5:25 pmFreetown Lungi Intl
Oct 19
FNA6:35 pmFreetown Lungi Intl
27h 26m
3 stops
STL5:01 pmLambert-St Louis
$2,202

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Sierra Leone 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 August 8, 2026.
Use the filters below to find and compare flights from St. Louis to Sierra Leone that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisFreetown

STL Lambert-St Louis - FNA Freetown Lungi Intl

STLFNA

Lambert-St Louis

Mon 9/28

9:30 am-5:25 pm

2 stops26h 55m

Freetown Lungi Intl

Mon 10/26

7:45 pm-9:40 pm

3 stops30h 55m

$1,863
Quickest round-trip

St. LouisFreetown

STL Lambert-St Louis - FNA Freetown Lungi Intl

STLFNA

Lambert-St Louis

Mon 9/28

12:10 pm-5:25 pm

3 stops24h 15m

Freetown Lungi Intl

Mon 10/26

7:45 pm-9:40 pm

3 stops30h 55m

$1,907

St. LouisFreetown

STL Lambert-St Louis - FNA Freetown Lungi Intl

STLFNA

Lambert-St Louis

Fri 10/16

5:36 pm-5:25 pm

2 stops42h 49m

Freetown Lungi Intl

Mon 10/19

6:35 pm-5:01 pm

3 stops27h 26m

$2,201

St. LouisFreetown

STL Lambert-St Louis - FNA Freetown Lungi Intl

STLFNA

Lambert-St Louis

Fri 10/16

5:36 pm-5:25 pm

2 stops42h 49m

Freetown Lungi Intl

Mon 10/19

6:35 pm-5:01 pm

3 stops27h 26m

$2,202

St. LouisFreetown

STL Lambert-St Louis - FNA Freetown Lungi Intl

STLFNA

Lambert-St Louis

Mon 9/28

8:30 am-4:45 pm

3 stops51h 15m

Freetown Lungi Intl

Mon 10/26

9:00 am-10:12 am

4 stops54h 12m

$4,454

St. LouisFreetown

STL Lambert-St Louis - FNA Freetown Lungi Intl

STLFNA

Lambert-St Louis

Mon 9/28

8:30 am-4:45 pm

4 stops51h 15m

Freetown Lungi Intl

Mon 10/26

9:00 am-10:12 am

4 stops54h 12m

$5,706

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap St. Louis to Sierra Leone flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Sierra Leone

Fastest flight time

26h 55m

Direct flights

None
The fastest flight from St. Louis to Sierra Leone takes 26h 55m
There are no direct flights from St. Louis to Sierra Leone. There are no popular flight routes from St. Louis to Sierra Leone.
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Frequently asked questions about flying from St. Louis to Sierra Leone

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Sierra Leone?

    Prices for flights from Lambert-St Louis Airport to Sierra Leone are updated daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Sierra Leone?

    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 Sierra Leone.

  • What documentation or ID do you need to fly to Sierra Leone?

    The travel and health documents you'll need for your trip to Sierra Leone may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sierra Leone. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from St. Louis to Sierra Leone

  • How do I get Price Alerts for flights from St. Louis to Sierra Leone?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to St. Louis from Sierra Leone. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from St. Louis to Sierra Leone with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Sierra Leone?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sierra Leone from St. Louis.

Can I find flights from St. Louis to Sierra Leone with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sierra Leone from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Sierra Leone?

Once all potential St. Louis to Sierra Leone flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Sierra Leone right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Sierra Leone from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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