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Sierra Leone

$671+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — FNA
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
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Cheap 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 August 13, 2025.

Round-trip from

$1,389
(United Airlines)

One-way from

$671
(Kiwi.com)
From Boston Logan Intl to Sierra Leone
Search Deals
One-way flight from Boston Logan Intl to Sierra Leone
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Find flight deals from Boston to Sierra Leone

Cheapest flights from Boston to Sierra Leone
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 August 13, 2025.

This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/289:30 amBOS - FNA
2 stops27h 55mUnited Airlines
Sun 12/288:05 pmFNA - BOS
3 stops30h 39mUnited Airlines
Deal found 8/11$1,389
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/277:12 pmBOS - FNA
2 stops42h 13mUnited Airlines
Thu 12/257:45 pmFNA - BOS
3 stops33h 09mUnited Airlines
Deal found 8/11$1,395
This oojo deal was found by Cheapflights users on 8/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:00 pmBOS - FNA
2 stops23h 25mTurkish Airlines
Thu 11/271:50 amFNA - BOS
2 stops21h 15mTurkish Airlines
Deal found 8/10$1,411
This SWISS deal was found by Cheapflights users on 8/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/239:40 pmBOS - FNA
2 stops39h 45mSWISS
Thu 12/257:45 pmFNA - BOS
3 stops29h 35mSWISS
Deal found 8/11$1,414
This Brussels Airlines deal was found by Cheapflights users on 8/11. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/298:05 pmBOS - FNA
2 stops41h 20mBrussels Airlines
Thu 12/257:45 pmFNA - BOS
3 stops27h 50mBrussels Airlines
Deal found 8/11$1,434
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2312:10 pmBOS - FNA
2 stops25h 15mUnited Airlines
Sun 12/288:05 pmFNA - BOS
3 stops32h 49mUnited Airlines
Deal found 8/11$1,436
This Turkish Airlines deal was found by Cheapflights users on 8/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/159:35 pmBOS - FNA
2 stops22h 55mTurkish Airlines
Sat 10/181:30 amFNA - BOS
2 stops22h 10mTurkish Airlines
Deal found 8/11$1,561
This oojo deal was found by Cheapflights users on 8/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:30 amBOS - FNA
3 stops30h 55mEthiopian Air
Thu 10/29:00 amFNA - BOS
4 stops42h 59mEthiopian Air
Deal found 8/10$1,645
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:40 pmBOS - FNA
2 stops22h 45mUnited Airlines
Mon 12/297:45 pmFNA - BOS
3 stops26h 32mUnited Airlines
Deal found 8/11$1,663
This SWISS deal was found by Cheapflights users on 8/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/235:05 pmBOS - FNA
2 stops20h 20mSWISS
Mon 12/297:45 pmFNA - BOS
3 stops29h 35mSWISS
Deal found 8/11$1,688
This oojo deal was found by Cheapflights users on 8/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/252:45 pmBOS - FNA
3 stops46h 00mMultiple Airlines
Thu 10/28:05 amFNA - BOS
3 stops19h 54mMultiple Airlines
Deal found 8/10$1,707

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 August 13, 2025.
Use the filters below to find and compare flights from Boston to Sierra Leone that are best for you.

Fly from

Boston

Fly to

Sierra Leone

Route

Depart

Return

Price

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Mon 8/25

7:45 am-5:25 pm

2 stops29h 40m

Freetown Lungi Intl

Thu 12/25

7:45 pm-9:44 pm

3 stops30h 59m

$1,389

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Mon 9/29

2:36 pm-5:25 pm

2 stops22h 49m

Freetown Lungi Intl

Fri 10/3

6:45 pm-6:56 pm

3 stops28h 11m

$1,389

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Thu 8/28

9:30 am-5:25 pm

2 stops27h 55m

Freetown Lungi Intl

Thu 12/25

7:45 pm-11:54 pm

3 stops33h 09m

$1,389

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Thu 8/28

9:30 am-5:25 pm

2 stops27h 55m

Freetown Lungi Intl

Wed 12/31

8:05 pm-9:44 pm

3 stops30h 39m

$1,389

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Thu 8/28

9:30 am-5:25 pm

2 stops27h 55m

Freetown Lungi Intl

Sun 12/28

8:05 pm-9:44 pm

3 stops30h 39m

$1,389

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Thu 8/28

1:00 pm-5:25 pm

2 stops24h 25m

Freetown Lungi Intl

Tue 12/30

8:05 pm-6:13 pm

3 stops27h 08m

$1,389

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Wed 8/27

7:12 pm-5:25 pm

2 stops42h 13m

Freetown Lungi Intl

Wed 12/31

8:05 pm-9:44 pm

3 stops30h 39m

$1,395

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Sun 8/24

4:27 pm-5:25 pm

2 stops44h 58m

Freetown Lungi Intl

Thu 12/25

7:45 pm-11:54 pm

3 stops33h 09m

$1,395

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Wed 8/27

7:12 pm-5:25 pm

2 stops42h 13m

Freetown Lungi Intl

Thu 12/25

7:45 pm-11:54 pm

3 stops33h 09m

$1,395

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Wed 8/27

7:12 pm-5:25 pm

2 stops42h 13m

Freetown Lungi Intl

Sun 12/28

8:05 pm-11:54 pm

3 stops32h 49m

$1,395

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 21 results
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2
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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.
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

What is the cheapest time of day to fly from BOS to SL?

Find hourly flight availability from Boston to Sierra Leone. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 13, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Sierra Leone as you normally would.

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 August 13, 2025.
Peruse reviews from past customers who have flown with Turkish Airlines, Brussels Airlines, and Ethiopian Air 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.
Turkish Airlines
7.3
Good
3,942 reviews

Boarding

7.3

Entertainment

7.4

Food

7.4

Comfort

7.3

Overall

7.3

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
Turkish Airlines
7.3
Good
3,942 reviews
Turkish Airlines
7.3
Good
3,942 reviews

Boarding

7.3

Entertainment

7.4

Food

7.4

Comfort

7.3

Overall

7.3

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
Brussels Airlines
7.3
Good
350 reviews
Turkish Airlines
7.3
Good
3,942 reviews

Boarding

7.3

Entertainment

7.4

Food

7.4

Comfort

7.3

Overall

7.3

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
Ethiopian Air
7.2
Good
824 reviews
Turkish Airlines
7.3
Good
3,942 reviews

Boarding

7.3

Entertainment

7.4

Food

7.4

Comfort

7.3

Overall

7.3

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.

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.

  • What airport do you fly from for flights from Boston to Sierra Leone?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to Sierra Leone.

  • Can I find deals for flights from Boston to Sierra Leone that include hotel bookings?

    Yes. In addition to deals on Boston to Sierra Leone flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Sierra Leone?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Sierra Leone.

  • Can I find deals for business class flights from Boston to Sierra Leone?

    Yes. Cheapflights offers flight deals from Boston to Sierra Leone by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Sierra Leone?

    Currently, February is the cheapest month in which you can book a flight from Boston to Sierra Leone (average of $1,174). Flying from Boston to Sierra Leone in December is currently the most expensive (average of $1,886). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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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 August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$1,385Average$1,461FlexibilityNo cancel feeOn-time77%
Brussels AirlinesCheapest$1,426Average$1,704FlexibilityNo cancel feeOn-timeN/A
Ethiopian AirCheapest$1,491Average$1,855FlexibilityNo cancel feeOn-time72%

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