$640+ Cheap flights from Boston (BOS) to Sierra Leone
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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — FNA
Oct 7 — Oct 141
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 September 7, 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 September 7, 2026.
This BusinessClass deal was found by Cheapflights users on 9/6. 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 12/47:15 am -
3 stops28h 05m
Mon 12/148:00 am -
3 stops20h 49m
Deal found 9/6![Multiple Airlines logo]()
$1,544
This Ovago deal was found by Cheapflights users on 9/5. 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.
Mon 10/58:25 pm -
3 stops39h 55m
Mon 10/128:00 am -
3 stops20h 09m
Deal found 9/5![Multiple Airlines logo]()
$1,551
This Gotogate deal was found by Cheapflights users on 9/4. 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.
Tue 10/135:50 am -
2 stops31h 35m
Mon 11/237:45 pm -
3 stops24h 08m
Deal found 9/4![Multiple Airlines logo]()
$1,572
This oojo deal was found by Cheapflights users on 9/2. 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.
Tue 12/13:42 pm -
3 stops19h 38m
Sun 12/207:55 am -
3 stops30h 22m
Deal found 9/2![Ethiopian Air logo]()
$1,605
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Thu 10/299:00 am -
2 stops29h 40m
Mon 11/27:45 pm -
3 stops26h 39m
Deal found 9/3![United Airlines logo]()
$1,610
This Ovago deal was found by Cheapflights users on 9/6. 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.
Thu 12/312:00 pm -
3 stops23h 20m
Sat 12/128:00 am -
3 stops20h 49m
Deal found 9/6![Multiple Airlines logo]()
$1,645
This oojo deal was found by Cheapflights users on 9/2. 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 12/28:33 pm -
3 stops38h 47m
Sun 12/207:55 am -
3 stops30h 22m
Deal found 9/2![Ethiopian Air logo]()
$1,669
This oojo deal was found by Cheapflights users on 9/4. 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.
Tue 12/18:07 pm -
2 stops51h 13m
Sun 12/205:20 am -
2 stops23h 21m
Deal found 9/4![Royal Air Maroc logo]()
$1,681
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 September 7, 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 September 7, 2026.
This oojo deal was found by Cheapflights users on 9/2. 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.
Tue 12/13:42 pm -
3 stops19h 38m
Sun 12/207:55 am -
3 stops30h 22m
Deal found 9/2![Ethiopian Air logo]()
$1,605
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 10/297:31 am -
2 stops31h 09m
Mon 11/27:45 pm -
3 stops26h 39m
Deal found 9/4![United Airlines logo]()
$1,610
This oojo deal was found by Cheapflights users on 9/2. 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 12/211:10 am -
2 stops36h 10m
Sun 12/205:20 am -
2 stops34h 25m
Deal found 9/2![Royal Air Maroc logo]()
$1,682
This oojo deal was found by Cheapflights users on 9/3. 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.
Tue 12/18:07 pm -
2 stops51h 13m
Sun 12/205:20 am -
2 stops23h 21m
Deal found 9/3![Royal Air Maroc logo]()
$1,682
This oojo deal was found by Cheapflights users on 9/5. 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 10/58:25 pm -
3 stops39h 55m
Mon 10/129:00 am -
4 stops33h 55m
Deal found 9/5![Ethiopian Air logo]()
$1,723
Last-minute flights from Boston to Sierra LeoneDiscover last-minute flight deals from Boston to Sierra Leone. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Sierra Leone. Data last updated September 7, 2026 and is based on user searches.
This Ovago deal was found by Cheapflights users on 9/5. 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.
Mon 10/58:25 pm -
3 stops39h 55m
Mon 10/128:00 am -
3 stops20h 09m
Deal found 9/5![Multiple Airlines logo]()
$1,551
This oojo deal was found by Cheapflights users on 9/5. 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 10/58:25 pm -
3 stops39h 55m
Mon 10/129:00 am -
4 stops33h 55m
Deal found 9/5![Ethiopian Air logo]()
$1,723
This Gotogate deal was found by Cheapflights users on 9/4. 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.
Tue 10/135:50 am -
2 stops31h 35m
Mon 11/237:45 pm -
3 stops24h 08m
Deal found 9/4![Multiple Airlines logo]()
$1,572
This oojo deal was found by Cheapflights users on 9/4. 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.
Tue 10/135:45 am -
3 stops31h 00m
Mon 11/239:00 am -
4 stops34h 32m
Deal found 9/4![Ethiopian Air logo]()
$2,093
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Thu 10/299:00 am -
2 stops29h 40m
Mon 11/27:45 pm -
3 stops26h 39m
Deal found 9/3![United Airlines logo]()
$1,610
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 September 7, 2026.
Search for one-way flight options from Boston to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Justfly.com deal was found by Cheapflights users on 9/3. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/138:10 pm -
2 stops52h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$640
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Sun 10/411:35 pm -
3 stops27h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$846
This Ovago deal was found by Cheapflights users on 9/5. 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.
Sun 10/43:35 pm -
2 stops21h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Brussels Airlines logo]()
$899
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,544 (BusinessClass) |
One-way from | $640 (Justfly.com) |
Popular in | January |
Cheapest in | November |
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 7,457,451 searches. Data last updated September 7, 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
BostonFreetown
BOS Boston Logan Intl - FNA Freetown Lungi Intl
BOSFNA
Boston Logan Intl
Tue 10/13
8:10 pm-4:25 am
2 stops52h 15m
Freetown Lungi Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$640
Quickest round-trip
BostonFreetown
BOS Boston Logan Intl - FNA Freetown Lungi Intl
BOSFNA
Boston Logan Intl
Sun 10/4
3:35 pm-5:15 pm
2 stops21h 40m
Freetown Lungi Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$899
BostonFreetown
BOS Boston Logan Intl - FNA Freetown Lungi Intl
BOSFNA
Boston Logan Intl
Tue 12/1
3:42 pm-4:20 pm
3 stops19h 38m
Freetown Lungi Intl
Sun 12/20
7:55 am-9:17 am
3 stops30h 22m
$1,605
BostonFreetown
BOS Boston Logan Intl - FNA Freetown Lungi Intl
BOSFNA
Boston Logan Intl
Thu 10/29
7:31 am-6:40 pm
2 stops31h 09m
Freetown Lungi Intl
Mon 11/2
7:45 pm-5:24 pm
3 stops26h 39m
$1,610
BostonFreetown
BOS Boston Logan Intl - FNA Freetown Lungi Intl
BOSFNA
Boston Logan Intl
Wed 12/2
11:10 am-4:20 am
2 stops36h 10m
Freetown Lungi Intl
Sun 12/20
5:20 am-10:45 am
2 stops34h 25m
$1,682
BostonFreetown
BOS Boston Logan Intl - FNA Freetown Lungi Intl
BOSFNA
Boston Logan Intl
Tue 12/1
8:07 pm-4:20 am
2 stops51h 13m
Freetown Lungi Intl
Sun 12/20
5:20 am-11:41 pm
2 stops23h 21m
$1,682
BostonFreetown
BOS Boston Logan Intl - FNA Freetown Lungi Intl
BOSFNA
Boston Logan Intl
Mon 10/5
8:25 pm-4:20 pm
3 stops39h 55m
Freetown Lungi Intl
Mon 10/12
9:00 am-2:55 pm
4 stops33h 55m
$1,723
Sorted 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 September 7, 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.
Entertainment
7.5
Boarding
7.3
Crew
7.8
Comfort
7.3
Food
7.5
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Entertainment
7.5
Boarding
7.3
Crew
7.8
Comfort
7.3
Food
7.5
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Entertainment
7.5
Boarding
7.3
Crew
7.8
Comfort
7.3
Food
7.5
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Entertainment
7.5
Boarding
7.3
Crew
7.8
Comfort
7.3
Food
7.5
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
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.
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.
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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 September 7, 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 7,457,451 searches. Data last updated September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,315 | Average$1,475 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,370 | Average$1,794 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,412 | Average$1,604 | FlexibilityNo cancel fee | On-timeN/A |