$609+ Cheap flights from Chicago (CHI) to Sierra Leone
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — FNA
Aug 13 — Aug 201
Round-trip
1 adult, Economy
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Best
Last-minute
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Cheapest flights from Chicago to Sierra LeoneExplore the most affordable flight options available from Chicago to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 14, 2026.
Explore the most affordable flight options available from Chicago to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 14, 2026.
This oojo deal was found by Cheapflights users on 7/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/299:45 am
ORD
- FNA
2 stops25h 00m
Ethiopian Air
Mon 1/259:00 am
FNA
- ORD
3 stops28h 40m
Ethiopian Air
Deal found 7/11![Ethiopian Air logo]()
$1,438
This KAYAK deal was found by Cheapflights users on 7/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:45 am
ORD
- FNA
2 stops25h 00m
Ethiopian Air
Thu 1/219:00 am
FNA
- ORD
3 stops28h 40m
Ethiopian Air
Deal found 7/9![Ethiopian Air logo]()
$1,481
This United deal was found by Cheapflights users on 7/12. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 pm
ORD
- FNA
1 stop18h 25m
Multiple Airlines
Mon 10/126:35 pm
FNA
- ORD
2 stops22h 25m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$1,535
This Turkish Airlines deal was found by Cheapflights users on 7/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:45 am
ORD
- FNA
2 stops30h 35m
Turkish Airlines
Tue 1/191:20 am
FNA
- ORD
2 stops38h 40m
Turkish Airlines
Deal found 7/9![Turkish Airlines logo]()
$1,545
This KAYAK deal was found by Cheapflights users on 7/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:45 am
ORD
- FNA
2 stops25h 00m
Ethiopian Air
Mon 1/188:05 am
FNA
- ORD
4 stops29h 35m
Ethiopian Air
Deal found 7/9![Ethiopian Air logo]()
$1,548
This KAYAK deal was found by Cheapflights users on 7/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:45 am
ORD
- FNA
2 stops25h 00m
Ethiopian Air
Tue 1/199:00 am
FNA
- ORD
3 stops28h 40m
Ethiopian Air
Deal found 7/9![Ethiopian Air logo]()
$1,556
Best flights from Chicago to Sierra LeoneDiscover carefully curated flight deals from Chicago to Sierra Leone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 14, 2026.
Discover carefully curated flight deals from Chicago to Sierra Leone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 14, 2026.
This oojo deal was found by Cheapflights users on 7/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/299:45 am
ORD
- FNA
2 stops25h 00m
Ethiopian Air
Mon 1/259:00 am
FNA
- ORD
3 stops28h 40m
Ethiopian Air
Deal found 7/13![Ethiopian Air logo]()
$1,442
This United deal was found by Cheapflights users on 7/12. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 pm
ORD
- FNA
1 stop18h 25m
Multiple Airlines
Mon 10/126:35 pm
FNA
- ORD
2 stops22h 25m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$1,535
This Turkish Airlines deal was found by Cheapflights users on 7/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:45 am
ORD
- FNA
2 stops30h 35m
Turkish Airlines
Tue 1/191:20 am
FNA
- ORD
2 stops38h 40m
Turkish Airlines
Deal found 7/9![Turkish Airlines logo]()
$1,545
This Turkish Airlines deal was found by Cheapflights users on 7/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:15 pm
ORD
- FNA
2 stops22h 05m
Turkish Airlines
Tue 1/191:20 am
FNA
- ORD
2 stops38h 40m
Turkish Airlines
Deal found 7/9![Turkish Airlines logo]()
$1,615
This Trip.com deal was found by Cheapflights users on 7/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:15 am
ORD
- FNA
2 stops25h 30m
Ethiopian Air
Sun 8/309:00 am
FNA
- ORD
3 stops28h 15m
Ethiopian Air
Deal found 7/11![Ethiopian Air logo]()
$1,623
This Expedia deal was found by Cheapflights users on 7/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:00 pm
ORD
- FNA
1 stop18h 15m
Multiple Airlines
Sun 8/306:45 pm
FNA
- ORD
3 stops24h 59m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$1,970
This Ethiopian Air deal was found by Cheapflights users on 7/10. 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 Ethiopian Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:15 am
ORD
- FNA
3 stops25h 10m
Ethiopian Air
Mon 8/319:00 am
FNA
- ORD
3 stops28h 15m
Ethiopian Air
Deal found 7/10![Ethiopian Air logo]()
$1,923
This BusinessClass deal was found by Cheapflights users on 7/13. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/295:50 pm
ORD
- FNA
1 stop18h 35m
Multiple Airlines
Mon 1/257:45 pm
FNA
- ORD
3 stops26h 35m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$1,974
Last-minute flights from Chicago to Sierra LeoneDiscover last-minute flight deals from Chicago to Sierra Leone. Data last updated July 14, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Sierra Leone. Data last updated July 14, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 7/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:15 am
ORD
- FNA
2 stops25h 30m
Ethiopian Air
Sun 8/309:00 am
FNA
- ORD
3 stops28h 15m
Ethiopian Air
Deal found 7/9![Ethiopian Air logo]()
$1,611
This Expedia deal was found by Cheapflights users on 7/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:27 pm
ORD
- FNA
2 stops53h 58m
Multiple Airlines
Sun 8/305:25 am
FNA
- ORD
2 stops39h 52m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$1,892
This Gotogate deal was found by Cheapflights users on 7/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:15 am
ORD
- FNA
3 stops25h 10m
Multiple Airlines
Mon 8/319:00 am
FNA
- ORD
3 stops28h 15m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$1,833
This Gotogate deal was found by Cheapflights users on 7/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:15 am
ORD
- FNA
3 stops25h 10m
Ethiopian Air
Mon 8/319:00 am
FNA
- ORD
3 stops28h 15m
Ethiopian Air
Deal found 7/10![Ethiopian Air logo]()
$1,909
One-way flights from Chicago to Sierra LeoneSearch for one-way flight options from Chicago to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated July 14, 2026.
Search for one-way flight options from Chicago to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated July 14, 2026.
This oojo deal was found by Cheapflights users on 7/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
ORD
- FNA
2 stops41h 25m
Royal Air Maroc
Deal found 7/12![Royal Air Maroc logo]()
$609
This oojo deal was found by Cheapflights users on 7/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:15 am
ORD
- FNA
2 stops25h 30m
Ethiopian Air
Deal found 7/9![Ethiopian Air logo]()
$719
This FlightHub deal was found by Cheapflights users on 7/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:27 pm
ORD
- FNA
2 stops53h 58m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$736
This Flightnetwork deal was found by Cheapflights users on 7/14. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:15 am
ORD
- FNA
2 stops25h 30m
Ethiopian Air
Deal found 7/14![Ethiopian Air logo]()
$847
This United Airlines deal was found by Cheapflights users on 7/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:00 pm
ORD
- FNA
1 stop18h 15m
United Airlines
Deal found 7/9![United Airlines logo]()
$881
This BusinessClass deal was found by Cheapflights users on 7/12. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 pm
ORD
- FNA
1 stop18h 15m
Brussels Airlines
Deal found 7/12![Brussels Airlines logo]()
$907
This SWISS deal was found by Cheapflights users on 7/12. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:20 pm
ORD
- FNA
2 stops46h 05m
SWISS
Deal found 7/12![SWISS logo]()
$925
This Flightnetwork deal was found by Cheapflights users on 7/10. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:05 am
ORD
- FNA
2 stops25h 20m
Air Canada
Deal found 7/10![Air Canada logo]()
$933
This Brussels Airlines deal was found by Cheapflights users on 7/10. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:00 pm
ORD
- FNA
1 stop18h 25m
Brussels Airlines
Deal found 7/10![Brussels Airlines logo]()
$937
This Air Canada deal was found by Cheapflights users on 7/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:50 am
ORD
- FNA
3 stops26h 25m
Air Canada
Deal found 7/12![Air Canada logo]()
$947
Find flight deals from Chicago to Sierra Leone
Keep the following information in mind while searching for Chicago to Sierra Leone flight deals. Data was last updated July 14, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,438 (oojo) |
One-way from | $576 (oojo) |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago 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, Cheapflights users made 2,558,603 searches. Data last updated July 14, 2026.
Use the filters below to find and compare flights from Chicago to Sierra Leone that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoFreetown
ORD - FNA
ORDFNA
Chicago O'Hare Intl
Sun 11/29
9:45 am-4:45 pm
2 stops25h 00m
Freetown Lungi Intl
Mon 1/25
9:00 am-7:40 am
3 stops28h 40m
$1,442
Quickest round-trip
ChicagoFreetown
ORD - FNA
ORDFNA
Chicago O'Hare Intl
Tue 10/6
6:00 pm-5:25 pm
1 stop18h 25m
Freetown Lungi Intl
Mon 10/12
6:35 pm-12:00 pm
2 stops22h 25m
$1,535
ChicagoFreetown
ORD - FNA
ORDFNA
Chicago O'Hare Intl
Wed 11/25
11:45 am-12:20 am
2 stops30h 35m
Freetown Lungi Intl
Tue 1/19
1:20 am-10:00 am
2 stops38h 40m
$1,545
ChicagoFreetown
ORD - FNA
ORDFNA
Chicago O'Hare Intl
Fri 11/27
8:15 pm-12:20 am
2 stops22h 05m
Freetown Lungi Intl
Tue 1/19
1:20 am-10:00 am
2 stops38h 40m
$1,615
ChicagoFreetown
ORD - FNA
ORDFNA
Chicago O'Hare Intl
Sun 8/23
10:15 am-4:45 pm
2 stops25h 30m
Freetown Lungi Intl
Sun 8/30
9:00 am-8:15 am
3 stops28h 15m
$1,623
ChicagoFreetown
ORD - FNA
ORDFNA
Chicago O'Hare Intl
Mon 8/24
10:15 am-4:25 pm
3 stops25h 10m
Freetown Lungi Intl
Mon 8/31
9:00 am-8:15 am
3 stops28h 15m
$1,923
ChicagoFreetown
ORD - FNA
ORDFNA
Chicago O'Hare Intl
Sun 8/23
6:00 pm-5:15 pm
1 stop18h 15m
Freetown Lungi Intl
Sun 8/30
6:45 pm-2:44 pm
3 stops24h 59m
$1,970
ChicagoFreetown
ORD - FNA
ORDFNA
Chicago O'Hare Intl
Sun 11/29
5:50 pm-6:25 pm
1 stop18h 35m
Freetown Lungi Intl
Mon 1/25
7:45 pm-4:20 pm
3 stops26h 35m
$1,974
Cheapest one-way
ChicagoFreetown
ORD - FNA
ORDFNA
Chicago O'Hare Intl
Sun 8/30
10:15 am-4:45 pm
2 stops25h 30m
$719
ChicagoFreetown
ORD - FNA
ORDFNA
Chicago O'Hare Intl
Fri 8/28
10:15 am-4:45 pm
2 stops25h 30m
$847
Showing 1-10 of 14 resultsSorted by cheapest first
Best time to book a flight from Chicago to Sierra Leone
Have a flexible travel schedule? Discover the best time to fly to Sierra Leone from Chicago with our price prediction graph.
ORD-FNA
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 Chicago to Sierra Leone
CHI-SL0
ORD-FNA
No data available for this route at this time. Please check back soon.
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