$872+ Cheap flights from Boston (BOS) 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — FNA
May 27 — Jun 31
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Sierra Leone 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
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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 Boston to Sierra Leone
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to Sierra LeoneExplore the most affordable flight options available from Boston to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 27, 2026.
Explore the most affordable flight options available from Boston to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 27, 2026.
This Air Canada deal was found by Cheapflights users on 4/22. 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 10/283:20 pm
BOS
- FNA
2 stops23h 05m
Air Canada
Sun 11/18:10 pm
FNA
- BOS
3 stops29h 07m
Air Canada
Deal found 4/22![Air Canada logo]()
$1,582
This Gotogate deal was found by Cheapflights users on 4/26. 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.
Thu 6/255:45 am
BOS
- FNA
2 stops31h 40m
Multiple Airlines
Thu 7/166:35 pm
FNA
- BOS
3 stops29h 20m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,594
This United Airlines deal was found by Cheapflights users on 4/24. 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.
Mon 6/82:40 pm
BOS
- FNA
2 stops22h 45m
United Airlines
Mon 6/156:35 pm
FNA
- BOS
3 stops28h 39m
United Airlines
Deal found 4/24![United Airlines logo]()
$1,611
This Turkish Airlines deal was found by Cheapflights users on 4/22. 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 10/289:00 pm
BOS
- FNA
2 stops23h 25m
Turkish Airlines
Sat 10/311:25 am
FNA
- BOS
2 stops22h 40m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$1,680
This BusinessClass deal was found by Cheapflights users on 4/27. 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.
Fri 5/298:05 pm
BOS
- FNA
2 stops41h 20m
Brussels Airlines
Fri 6/196:45 pm
FNA
- BOS
3 stops33h 14m
Brussels Airlines
Deal found 4/27![Brussels Airlines logo]()
$1,681
This Air Canada deal was found by Cheapflights users on 4/24. 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.
Mon 6/810:45 am
BOS
- FNA
3 stops26h 40m
Air Canada
Mon 6/156:35 pm
FNA
- BOS
3 stops24h 12m
Air Canada
Deal found 4/24![Air Canada logo]()
$1,723
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Wed 12/27:10 am
BOS
- FNA
2 stops30h 15m
United Airlines
Sun 12/68:10 pm
FNA
- BOS
3 stops28h 28m
United Airlines
Deal found 4/26![United Airlines logo]()
$1,785
This KAYAK deal was found by Cheapflights users on 4/24. 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.
Tue 7/145:45 pm
BOS
- FNA
2 stops43h 30m
Multiple Airlines
Sun 8/166:45 pm
FNA
- BOS
3 stops29h 10m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,798
This KAYAK deal was found by Cheapflights users on 4/25. 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.
Tue 7/148:05 pm
BOS
- FNA
2 stops41h 10m
Brussels Airlines
Sun 8/166:45 pm
FNA
- BOS
3 stops26h 55m
Brussels Airlines
Deal found 4/25![Brussels Airlines logo]()
$1,831
This Ovago deal was found by Cheapflights users on 4/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2910:14 am
BOS
- FNA
2 stops38h 11m
Multiple Airlines
Fri 6/195:25 am
FNA
- BOS
2 stops22h 34m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,844
This United Airlines deal was found by Cheapflights users on 4/25. 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 12/136:30 pm
BOS
- FNA
2 stops43h 10m
United Airlines
Sun 12/278:10 pm
FNA
- BOS
3 stops25h 15m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,870
Best flights from Boston to Sierra LeoneDiscover carefully curated flight deals from Boston to Sierra Leone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 27, 2026.
Discover carefully curated flight deals from Boston to Sierra Leone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 27, 2026.
This United Airlines deal was found by Cheapflights users on 4/24. 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.
Mon 6/82:40 pm
BOS
- FNA
2 stops22h 45m
United Airlines
Mon 6/156:35 pm
FNA
- BOS
3 stops28h 39m
United Airlines
Deal found 4/24![United Airlines logo]()
$1,611
This Brussels Airlines deal was found by Cheapflights users on 4/27. 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.
Fri 5/292:15 pm
BOS
- FNA
3 stops47h 10m
Brussels Airlines
Fri 6/196:45 pm
FNA
- BOS
3 stops26h 55m
Brussels Airlines
Deal found 4/27![Brussels Airlines logo]()
$1,784
This KAYAK deal was found by Cheapflights users on 4/24. 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.
Tue 7/145:45 pm
BOS
- FNA
2 stops43h 30m
Multiple Airlines
Sun 8/166:45 pm
FNA
- BOS
3 stops29h 10m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,798
This oojo deal was found by Cheapflights users on 4/24. 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.
Mon 6/85:45 am
BOS
- FNA
3 stops30h 40m
Ethiopian Air
Mon 6/159:00 am
FNA
- BOS
4 stops33h 43m
Ethiopian Air
Deal found 4/24![Ethiopian Air logo]()
$2,298
This KAYAK deal was found by Cheapflights users on 4/25. 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.
Tue 7/148:05 pm
BOS
- FNA
2 stops41h 10m
Brussels Airlines
Sun 8/166:45 pm
FNA
- BOS
3 stops26h 55m
Brussels Airlines
Deal found 4/25![Brussels Airlines logo]()
$1,831
This Ovago deal was found by Cheapflights users on 4/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2910:14 am
BOS
- FNA
2 stops38h 11m
Multiple Airlines
Fri 6/195:25 am
FNA
- BOS
2 stops22h 34m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,844
This oojo deal was found by Cheapflights users on 4/24. 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.
Sat 5/235:45 am
BOS
- FNA
4 stops55h 00m
Ethiopian Air
Sat 6/208:05 am
FNA
- BOS
3 stops19h 54m
Ethiopian Air
Deal found 4/24![Ethiopian Air logo]()
$2,346
Last-minute flights from Boston to Sierra LeoneDiscover last-minute flight deals from Boston to Sierra Leone. Data last updated April 27, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Sierra Leone. Data last updated April 27, 2026 and is based on user searches.
This BusinessClass deal was found by Cheapflights users on 4/26. 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.
Mon 4/275:45 am
BOS
- FNA
3 stops30h 40m
Multiple Airlines
Mon 5/48:05 am
FNA
- BOS
3 stops19h 54m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,953
This KAYAK deal was found by Cheapflights users on 4/23. 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.
Mon 4/275:45 am
BOS
- FNA
3 stops30h 40m
Multiple Airlines
Thu 4/308:05 am
FNA
- BOS
3 stops20h 35m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$2,071
This oojo deal was found by Cheapflights users on 4/23. 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.
Mon 4/275:45 am
BOS
- FNA
4 stops55h 00m
Ethiopian Air
Thu 4/308:05 am
FNA
- BOS
3 stops27h 48m
Ethiopian Air
Deal found 4/23![Ethiopian Air logo]()
$2,307
This KAYAK deal was found by Cheapflights users on 4/26. 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.
Mon 4/275:45 am
BOS
- FNA
3 stops30h 40m
Ethiopian Air
Mon 5/49:00 am
FNA
- BOS
4 stops33h 26m
Ethiopian Air
Deal found 4/26![Ethiopian Air logo]()
$2,402
This oojo deal was found by Cheapflights users on 4/24. 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.
Sat 5/235:45 am
BOS
- FNA
3 stops31h 00m
Ethiopian Air
Sat 6/208:05 am
FNA
- BOS
3 stops19h 54m
Ethiopian Air
Deal found 4/24![Ethiopian Air logo]()
$1,885
This FlightHub deal was found by Cheapflights users on 4/24. 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.
Sat 5/2311:05 pm
BOS
- FNA
2 stops37h 20m
Multiple Airlines
Sat 6/208:05 am
FNA
- BOS
2 stops34h 05m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$2,391
This BusinessClass deal was found by Cheapflights users on 4/27. 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.
Fri 5/298:05 pm
BOS
- FNA
2 stops41h 20m
Brussels Airlines
Fri 6/196:45 pm
FNA
- BOS
3 stops33h 14m
Brussels Airlines
Deal found 4/27![Brussels Airlines logo]()
$1,681
This Ovago deal was found by Cheapflights users on 4/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2910:14 am
BOS
- FNA
2 stops38h 11m
Multiple Airlines
Fri 6/195:25 am
FNA
- BOS
2 stops22h 34m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,844
One-way flights from Boston to Sierra LeoneSearch for one-way flight options from Boston to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated April 27, 2026.
Search for one-way flight options from Boston to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated April 27, 2026.
This KAYAK deal was found by Cheapflights users on 4/26. 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.
Sat 5/29:20 am
BOS
- FNA
2 stops28h 05m
Lufthansa
Deal found 4/26![Lufthansa logo]()
$872
This Ovago deal was found by Cheapflights users on 4/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:30 pm
BOS
- FNA
2 stops24h 55m
Austrian Airlines
Deal found 4/27![Austrian Airlines logo]()
$873
This KAYAK deal was found by Cheapflights users on 4/27. 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.
Sat 5/25:20 pm
BOS
- FNA
2 stops20h 05m
SWISS
Deal found 4/27![SWISS logo]()
$906
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/25:45 am
BOS
- FNA
3 stops31h 00m
Ethiopian Air
Deal found 4/27![Ethiopian Air logo]()
$1,027
This SmartFares deal was found by Cheapflights users on 4/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/205:20 pm
BOS
- FNA
2 stops20h 05m
SWISS
Deal found 4/25![SWISS logo]()
$1,077
This KAYAK deal was found by Cheapflights users on 4/25. 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.
Sat 6/206:50 pm
BOS
- FNA
3 stops42h 25m
Austrian Airlines
Deal found 4/25![Austrian Airlines logo]()
$1,123
This oojo deal was found by Cheapflights users on 4/25. 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.
Sat 6/209:30 am
BOS
- FNA
4 stops51h 15m
Ethiopian Air
Deal found 4/25![Ethiopian Air logo]()
$1,492
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/209:49 pm
BOS
- FNA
1 stop26h 11m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$2,626
Find flight deals from Boston to Sierra Leone
Keep the following information in mind while searching for Boston to Sierra Leone flight deals. Data was last updated April 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,594 (Gotogate) |
One-way from | $872 (KAYAK) |
Popular in | July |
Cheapest in | March |
Average price | $1,501 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston 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 April 27, 2026.
Use the filters below to find and compare flights from Boston to Sierra Leone that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BostonFreetown
BOS - FNA
BOSFNA
Boston Logan Intl
Mon 6/8
2:40 pm-5:25 pm
2 stops22h 45m
Freetown Lungi Intl
Mon 6/15
6:35 pm-7:14 pm
3 stops28h 39m
$1,611
BostonFreetown
BOS - FNA
BOSFNA
Boston Logan Intl
Fri 5/29
2:15 pm-5:25 pm
3 stops47h 10m
Freetown Lungi Intl
Fri 6/19
6:45 pm-5:40 pm
3 stops26h 55m
$1,784
BostonFreetown
BOS - FNA
BOSFNA
Boston Logan Intl
Tue 7/14
5:45 pm-5:15 pm
2 stops43h 30m
Freetown Lungi Intl
Sun 8/16
6:45 pm-7:55 pm
3 stops29h 10m
$1,798
BostonFreetown
BOS - FNA
BOSFNA
Boston Logan Intl
Tue 7/14
8:05 pm-5:15 pm
2 stops41h 10m
Freetown Lungi Intl
Sun 8/16
6:45 pm-5:40 pm
3 stops26h 55m
$1,831
BostonFreetown
BOS - FNA
BOSFNA
Boston Logan Intl
Fri 5/29
10:14 am-4:25 am
2 stops38h 11m
Freetown Lungi Intl
Fri 6/19
5:25 am-11:59 pm
2 stops22h 34m
$1,844
BostonFreetown
BOS - FNA
BOSFNA
Boston Logan Intl
Mon 6/8
5:45 am-4:25 pm
3 stops30h 40m
Freetown Lungi Intl
Mon 6/15
9:00 am-2:43 pm
4 stops33h 43m
$2,298
BostonFreetown
BOS - FNA
BOSFNA
Boston Logan Intl
Sat 5/23
5:45 am-4:45 pm
4 stops55h 00m
Freetown Lungi Intl
Sat 6/20
8:05 am-11:59 pm
3 stops19h 54m
$2,346
Cheapest one-way
BostonFreetown
BOS - FNA
BOSFNA
Boston Logan Intl
Sat 5/2
9:20 am-5:25 pm
2 stops28h 05m
$872
BostonFreetown
BOS - FNA
BOSFNA
Boston Logan Intl
Sat 5/2
12:30 pm-5:25 pm
2 stops24h 55m
$873
Quickest one-way
BostonFreetown
BOS - FNA
BOSFNA
Boston Logan Intl
Sat 5/2
5:20 pm-5:25 pm
2 stops20h 05m
$906
Showing 1-10 of 15 resultsSorted by cheapest first
Best time to book a flight from Boston to Sierra Leone
Have a flexible travel schedule? Discover the best time to fly to Sierra Leone from Boston with our price prediction graph.
BOS-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 Boston to Sierra Leone
BOS-SL0
BOS-FNA
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Sierra Leone
Get insights into the airlines that provide service to Sierra Leone. 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 Sierra Leone. Reviews last updated April 27, 2026.
Peruse reviews from past customers who have flown with Turkish Airlines,United Airlines, andBrussels Airlines from Boston to Sierra Leone to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.5
Entertainment
7.5
Boarding
7.3
Crew
7.8
Comfort
7.3
Overall
7.4
Reviews
1 / 20
8.0
ExcellentCathy,Mar 2026
DFW - ATH
Food
7.5
Entertainment
7.5
Boarding
7.3
Crew
7.8
Comfort
7.3
Overall
7.4
Reviews
1 / 20
8.0
ExcellentCathy,Mar 2026
DFW - ATH
Food
7.5
Entertainment
7.5
Boarding
7.3
Crew
7.8
Comfort
7.3
Overall
7.4
Reviews
1 / 20
8.0
ExcellentCathy,Mar 2026
DFW - ATH
Food
7.5
Entertainment
7.5
Boarding
7.3
Crew
7.8
Comfort
7.3
Overall
7.4
Reviews
1 / 20
8.0
ExcellentCathy,Mar 2026
DFW - ATH
Related info for your journey
Find useful and relevant information for your journey from Boston to Sierra Leone. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Boston to Sierra Leone
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Sierra Leone by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to Sierra Leone by cabin class
Find flights from Boston to Sierra Leone, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and Sierra Leone flights
Browse other Boston and Sierra Leone flight options. Last updated on April 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Boston to Sierra Leone
Discover the top 3 airlines that operate flights from Boston to Sierra Leone. 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 April 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,315 | Average$1,475 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,370 | Average$1,562 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,376 | Average$1,614 | FlexibilityNo cancel fee | On-timeN/A |