$739 Find Cheap Flights from Boston to Sierra Leone

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Sierra Leone departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Boston to Sierra Leone Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Sierra Leone that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Sierra Leone

Mon, May 11 - Sun, May 24
Turkish Airlines Logo
9:50 pm - 12:25 am
BOS
-
FNA
22h 35m
2 stops
Turkish Airlines Logo
1:25 am - 7:55 pm
FNA
-
BOS
22h 30m
2 stops
$1,491Turkish Airlines
Wed, May 6 - Tue, May 19
Ethiopian Air Logo
5:45 am - 4:25 pm
BOS
-
FNA
30h 40m
3 stops
Ethiopian Air Logo
8:05 am - 6:11 pm
FNA
-
BOS
38h 06m
3 stops
$1,511Ethiopian Air
Mon, May 11 - Sun, May 24
Turkish Airlines Logo
9:50 pm - 12:25 am
BOS
-
FNA
22h 35m
2 stops
Turkish Airlines Logo
1:25 am - 7:55 pm
FNA
-
BOS
22h 30m
2 stops
$1,514Turkish Airlines
Sat, Aug 22 - Sun, Sep 6
Turkish Airlines Logo
9:50 pm - 12:25 am
BOS
-
FNA
22h 35m
2 stops
Turkish Airlines Logo
1:25 am - 7:55 pm
FNA
-
BOS
22h 30m
2 stops
$1,560Turkish Airlines
Wed, May 6 - Tue, May 19
United Airlines Logo
7:27 pm - 5:25 pm
BOS
-
FNA
41h 58m
2 stops
United Airlines Logo
6:45 pm - 6:11 pm
FNA
-
BOS
27h 26m
3 stops
$1,566United Airlines
Tue, Jun 23 - Thu, Jul 23
Brussels Airlines Logo
11:00 am - 5:25 pm
BOS
-
FNA
26h 25m
2 stops
Brussels Airlines Logo
6:35 pm - 5:40 pm
FNA
-
BOS
27h 05m
3 stops
$1,569Brussels Airlines
Sat, Aug 22 - Mon, Sep 7
SWISS Logo
5:20 pm - 5:25 pm
BOS
-
FNA
20h 05m
2 stops
SWISS Logo
6:35 pm - 3:10 pm
FNA
-
BOS
48h 35m
3 stops
$1,581SWISS
Sat, Aug 22 - Mon, Sep 7
Ethiopian Air Logo
5:45 am - 4:25 pm
BOS
-
FNA
30h 40m
3 stops
Ethiopian Air Logo
8:05 am - 2:45 pm
FNA
-
BOS
34h 40m
3 stops
$1,582Ethiopian Air
Wed, May 6 - Tue, May 19
Ethiopian Air Logo
5:45 am - 4:25 pm
BOS
-
FNA
30h 40m
3 stops
Ethiopian Air Logo
9:00 am - 7:04 pm
FNA
-
BOS
38h 04m
4 stops
$1,658Ethiopian Air
Thu, Apr 30 - Thu, May 21
Multiple Airlines Logo
8:30 am - 4:25 pm
BOS
-
FNA
27h 55m
3 stops
Multiple Airlines Logo
8:05 am - 8:17 am
FNA
-
BOS
28h 12m
3 stops
$1,671Multiple Airlines
Booking Insights

KAYAK's insights & trends for Boston to Sierra Leone flights

Get data-powered insights and trends into flights from Boston to Sierra Leone to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Boston to Sierra Leone?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Boston to Sierra Leone were found on Turkish Airlines ($1,514) and United Airlines ($1,566).

Good to know

Low seasonOctober
Cheapest flight$739
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Boston to Freetown

FAQs - booking Sierra Leone flights

  • How does KAYAK find such low prices on flights from Boston to Sierra Leone?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Sierra Leone.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Sierra Leone?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to Sierra Leone is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Sierra Leone?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Boston to Sierra Leone with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Sierra Leone?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Boston to Sierra Leone up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Boston to Sierra Leone

 
Need help choosing which airline to fly with from Boston to Sierra Leone? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9455 reviews
7.7Boarding
7.3Comfort
6.6Food
8.1Crew
7.1Entertainment
Airline reviews

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

8.0 ExcellentLaba, Mar 2026
DEN - YEG
Read more United Airlines reviews

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Business class seats felt very cramped compared to other airlines.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

The desk crew at the LAX crew could do better. A girl named Mahesi was very abrasive and unfriendly. She needs a better customer service uproar.

It was peaceful excited We enjoyed it always Turkish peaceful excited

Istanbul to Lahore flight was less than standard for international business class cabins. Seat did not were not flat and it did not operate easily. I had to push buttons hard repeatedly to operate the seat. I was in 5A seat

IAH to Istanbul was outstanding across the board. The flight from Istanbul to Male was good, not great.

the cabin was kept too hot. couldn't sleep as a result

It was an amazing experience. Flight crew's service, hospitality, and the food were phenomenal. I don't think I'd want to try any other airline company after this. I would definitely recommend to friends and family. Thank you Turkish Airlines !

Business Class pods are horrible. If you're petite, you might be able to sleep on the uncomfortable seat and bed. Crew and food are fantastic.

I have travelled many times on Turkish, but they always board at least 30-40 minutes past the stated time. If informed properly, passengers can choose to spend more time in the .lounge instead of standing around by the gate waiting to board. The new lounge at DFW was a big disappointment. The aircraft itself was a shock. In the past I have flown this sector with regular business class seating configuration of 1-2-1, The 2-3-2 seating is very disappointing after paying such high prices for tickets. The DFW to Istanbul segment was slightly better, but the Istanbul to Delhi segment was no better than premium economy. I will try to travel more on airlines which give business class passengers more value for their money.

Good overall. Seat spacing a bit tight between IST and ISB.

Excellent staff despite some trying passenger situations. Very impressed with their good attitudes and kindness.

Unfriendly, 8 hours delayed, no lounge access even flying business. Don’t fly Brussels

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

Too cramped up for the better seats I paid for.

I didn’t like my seat in my return flight from Montreal to Orlando at all; considering I paid extra for better seats. That middle seat was cramped up way too much.

Suitcase didn’t arrive to Stockholm. Chairs y comfy and not even water is offered

Bad baggage and people management at boarding forcing me to dispatch my bad despite being the perfect size and respecting everything perfectly, whereas many did not and many free empty spots on the plane as usual… making me loose time and my planned bus at arrival to go to Geneva. Costing me 100 euros extra! So Brussels airlines needs to refund me

I never board the flight. My visa was delayed and when I tried calling Kayak, no one answer and I still have not heard from anyone.

All great. Very efficient. Good emails that kept us in the know

Original flight was canceled, booked another one and find out when checking I was on the waiting list. Horrible experience

Actually this is my first time using airline I was in every single thing that happened throughout our journey, the appearance of the plane inside furnished about the seating the flight attendants and many many more I was so excited throughout thank you Brussels Airlines for the great service.

Everything you need to know for your flight from Boston to Sierra Leone

Information on your arrival and departure airports