How long is the flight from Boston to Sierra Leone?

Departing from Boston to Sierra Leone will take you 22h 30m. Airlines will cover a distance of 4188 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

In terms of precipitation, rainfall in Sierra Leone ranges from 0.0 - 23.2 inches per month. July is typically the wettest month, when rainfall can reach 23.2 in. January is typically the driest time to visit Sierra Leone when rainfall is around 0.0 in.

If weather is an important factor for your trip to Sierra Leone, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 77.0 F).

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.

$1,290+ Flights from Boston to Sierra Leone

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Cheap 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 December 14, 2025.

Sun 12/217:15 pmBOS - FNA

2 stops28h 05mBritish Airways

Sun 1/115:20 amFNA - BOS

2 stops21h 35mBritish Airways

Deal found 12/12

$2,894

Thu 12/186:55 pmBOS - FNA

3 stops40h 50mMultiple Airlines

Wed 1/148:05 amFNA - BOS

3 stops20h 44mMultiple Airlines

Deal found 12/12

$2,942

Sun 12/215:20 amBOS - FNA

3 stops30h 25mEthiopian Air

Sun 1/119:00 amFNA - BOS

4 stops43h 49mEthiopian Air

Deal found 12/12

$3,448

Thu 12/185:30 amBOS - FNA

2 stops17h 50mRoyal Air Maroc

Wed 1/145:20 amFNA - BOS

2 stops39h 28mRoyal Air Maroc

Deal found 12/14

$3,572

Thu 12/186:55 pmBOS - FNA

3 stops40h 50mMultiple Airlines

Sat 1/38:05 amFNA - BOS

3 stops20h 49mMultiple Airlines

Deal found 12/13

$3,663

Thu 12/184:35 pmBOS - FNA

3 stops43h 10mMultiple Airlines

Sun 1/45:20 amFNA - BOS

2 stops61h 50mMultiple Airlines

Deal found 12/13

$3,782

Thu 12/187:44 pmBOS - FNA

2 stops41h 56mUnited Airlines

Wed 1/148:10 pmFNA - BOS

3 stops45h 36mUnited Airlines

Deal found 12/14

$3,871

Best flights from Boston to Sierra Leone
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 December 14, 2025.

Wed 4/159:50 pmBOS - FNA

2 stops22h 30mTurkish Airlines

Tue 4/281:20 amFNA - BOS

2 stops22h 35mTurkish Airlines

Deal found 12/11

$1,290

Wed 1/289:30 amBOS - FNA

2 stops27h 55mUnited Airlines

Wed 2/48:10 pmFNA - BOS

3 stops26h 09mUnited Airlines

Deal found 12/14

$1,349

Sat 4/45:05 pmBOS - FNA

2 stops20h 20mSWISS

Sun 5/36:45 pmFNA - BOS

3 stops24h 45mSWISS

Deal found 12/14

$1,399

Wed 4/158:05 pmBOS - FNA

2 stops41h 20mBrussels Airlines

Sun 5/36:45 pmFNA - BOS

3 stops26h 55mBrussels Airlines

Deal found 12/11

$1,438

Mon 1/121:30 pmBOS - FNA

2 stops24h 10mUnited Airlines

Wed 2/188:10 pmFNA - BOS

3 stops30h 38mUnited Airlines

Deal found 12/14

$1,349

Sat 4/189:50 pmBOS - FNA

2 stops22h 30mTurkish Airlines

Tue 4/281:20 amFNA - BOS

2 stops22h 35mTurkish Airlines

Deal found 12/11

$1,380

Tue 4/145:05 pmBOS - FNA

2 stops20h 20mSWISS

Wed 4/296:45 pmFNA - BOS

3 stops53h 10mSWISS

Deal found 12/11

$1,420

Sun 1/117:07 pmBOS - FNA

2 stops42h 33mUnited Airlines

Wed 2/188:10 pmFNA - BOS

3 stops30h 38mUnited Airlines

Deal found 12/14

$1,354

Fri 4/179:50 pmBOS - FNA

2 stops22h 30mTurkish Airlines

Thu 4/301:20 amFNA - BOS

2 stops22h 35mTurkish Airlines

Deal found 12/11

$1,421

Mon 4/139:30 amBOS - FNA

2 stops27h 55mUnited Airlines

Sun 5/36:45 pmFNA - BOS

3 stops33h 09mUnited Airlines

Deal found 12/11

$1,390

Wed 2/49:30 amBOS - FNA

2 stops27h 55mUnited Airlines

Sat 2/148:10 pmFNA - BOS

3 stops30h 38mUnited Airlines

Deal found 12/13

$1,399

Mon 4/139:30 amBOS - FNA

2 stops27h 55mUnited Airlines

Wed 4/296:45 pmFNA - BOS

3 stops33h 09mUnited Airlines

Deal found 12/11

$1,420

Last-minute flights from Boston to Sierra Leone
Discover last-minute flight deals from Boston to Sierra Leone. Data last updated December 14, 2025 and is based on user searches.

Thu 1/87:07 pmBOS - FNA

2 stops42h 33mUnited Airlines

Wed 2/188:10 pmFNA - BOS

3 stops28h 27mUnited Airlines

Deal found 12/14

$1,476

Thu 1/84:20 pmBOS - FNA

2 stops45h 20mBrussels Airlines

Tue 2/178:10 pmFNA - BOS

3 stops27h 25mBrussels Airlines

Deal found 12/14

$1,520

Thu 1/85:45 amBOS - FNA

3 stops29h 40mEthiopian Air

Mon 2/168:05 amFNA - BOS

3 stops35h 07mEthiopian Air

Deal found 12/14

$1,527

Fri 1/99:30 amBOS - FNA

2 stops28h 10mUnited Airlines

Wed 2/188:10 pmFNA - BOS

3 stops28h 27mUnited Airlines

Deal found 12/14

$1,470

Sat 1/104:20 pmBOS - FNA

2 stops21h 20mMultiple Airlines

Tue 2/178:10 pmFNA - BOS

3 stops29h 10mMultiple Airlines

Deal found 12/14

$1,480

Sat 1/104:20 pmBOS - FNA

2 stops21h 20mBrussels Airlines

Wed 2/188:10 pmFNA - BOS

3 stops27h 25mBrussels Airlines

Deal found 12/14

$1,506

Sat 1/102:27 pmBOS - FNA

3 stops20h 58mMultiple Airlines

Mon 2/168:05 amFNA - BOS

3 stops35h 07mMultiple Airlines

Deal found 12/14

$1,541

Sun 1/117:07 pmBOS - FNA

2 stops42h 33mUnited Airlines

Wed 2/188:10 pmFNA - BOS

3 stops30h 38mUnited Airlines

Deal found 12/14

$1,354

Sun 1/118:40 pmBOS - FNA

2 stops41h 00mBrussels Airlines

Tue 2/178:10 pmFNA - BOS

3 stops27h 25mBrussels Airlines

Deal found 12/14

$1,490

Mon 1/121:30 pmBOS - FNA

2 stops24h 10mUnited Airlines

Wed 2/188:10 pmFNA - BOS

3 stops30h 38mUnited Airlines

Deal found 12/14

$1,349

Mon 1/1210:10 pmBOS - FNA

2 stops39h 30mSWISS

Tue 2/178:10 pmFNA - BOS

3 stops29h 10mSWISS

Deal found 12/14

$1,425

Mon 1/122:20 pmBOS - FNA

2 stops23h 20mBrussels Airlines

Sun 2/158:10 pmFNA - BOS

3 stops27h 25mBrussels Airlines

Deal found 12/14

$1,534

Find flight deals from Boston to Sierra Leone

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,290 (FlightHub)

Provider with most accurate pricing for Boston Logan Intl-Freetown Lungi Intl flight deals.

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From Boston Logan Intl to Sierra Leone

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Cheapflights Fare Finder

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

Price

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Wed 4/15

9:50 pm-12:20 am

2 stops22h 30m

Freetown Lungi Intl

Tue 4/28

1:20 am-7:55 pm

2 stops22h 35m

$1,290

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Wed 1/28

9:30 am-6:25 pm

2 stops27h 55m

Freetown Lungi Intl

Wed 2/4

8:10 pm-5:19 pm

3 stops26h 09m

$1,349

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Mon 1/12

1:30 pm-6:40 pm

2 stops24h 10m

Freetown Lungi Intl

Wed 2/18

8:10 pm-9:48 pm

3 stops30h 38m

$1,349

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Sun 1/11

7:07 pm-6:40 pm

2 stops42h 33m

Freetown Lungi Intl

Wed 2/18

8:10 pm-9:48 pm

3 stops30h 38m

$1,354

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Sat 4/18

9:50 pm-12:20 am

2 stops22h 30m

Freetown Lungi Intl

Tue 4/28

1:20 am-7:55 pm

2 stops22h 35m

$1,380

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Mon 4/13

9:30 am-5:25 pm

2 stops27h 55m

Freetown Lungi Intl

Sun 5/3

6:45 pm-11:54 pm

3 stops33h 09m

$1,390

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Sat 4/4

5:05 pm-5:25 pm

2 stops20h 20m

Freetown Lungi Intl

Sun 5/3

6:45 pm-3:30 pm

3 stops24h 45m

$1,399

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Wed 2/4

9:30 am-6:25 pm

2 stops27h 55m

Freetown Lungi Intl

Sat 2/14

8:10 pm-9:48 pm

3 stops30h 38m

$1,399

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Tue 4/14

5:05 pm-5:25 pm

2 stops20h 20m

Freetown Lungi Intl

Wed 4/29

6:45 pm-7:55 pm

3 stops53h 10m

$1,420

BostonFreetown

BOS - FNA

BOSFNA

Boston Logan Intl

Mon 4/13

9:30 am-5:25 pm

2 stops27h 55m

Freetown Lungi Intl

Wed 4/29

6:45 pm-11:54 pm

3 stops33h 09m

$1,420

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 12 results

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?

One of the essential ways to save on airfare from Boston to Sierra Leone is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 29% on airfare.

Reviews of airlines servicing Sierra Leone

Peruse reviews from past customers who have flown with United Airlines, Turkish Airlines, and Brussels 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.

United Airlines

7.4

Good

9,092 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

United Airlines

7.4

Good

9,092 reviews

United Airlines

7.4

Good

9,092 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Turkish Airlines

7.3

Good

4,094 reviews

United Airlines

7.4

Good

9,092 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Brussels Airlines

7.2

Good

375 reviews

United Airlines

7.4

Good

9,092 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Ethiopian Air

7.2

Good

907 reviews

United Airlines

7.4

Good

9,092 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

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.
How long is the flight from Boston to Sierra Leone?
Departing from Boston to Sierra Leone will take you 22h 30m. Airlines will cover a distance of 4188 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Boston to Sierra Leone

Airline	Cheapest	Average	Flexibility	On-time
Turkish Airlines	Cheapest$1,191	Average$1,651	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$1,368	Average$1,488	FlexibilityNo cancel fee	On-time69%
Brussels Airlines	Cheapest$1,426	Average$1,658	FlexibilityNo cancel fee	On-timeN/A
Ethiopian Air	Cheapest$1,610	Average$1,843	FlexibilityNo cancel fee	On-time72%

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$1,290+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Sierra Leone with Cheapflights

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Cheap flight deals from Boston to Sierra Leone

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 December 14, 2025.

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 December 14, 2025.

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 December 14, 2025.

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

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

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.

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 December 14, 2025.

Reviews of airlines servicing Sierra Leone

Peruse reviews from past customers who have flown with United Airlines, Turkish Airlines, and Brussels 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.

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?

How long is the flight from Boston to Sierra Leone?

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

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

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

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.

Alternative routes for Boston to Sierra Leone

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Boston to Sierra Leone

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Book with Flexibility

Travel Smart

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 December 14, 2025.