$799 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 6/23. 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

Thu, Oct 29 - Mon, Nov 2
Air Canada Logo
3:20 pm - 6:40 pm
BOS
-
FNA
23h 20m
2 stops
Air Canada Logo
7:45 pm - 2:37 pm
FNA
-
BOS
23h 52m
3 stops
$1,602Air Canada
Sun, Nov 29 - Tue, Dec 29
Multiple Airlines Logo
4:05 pm - 6:25 pm
BOS
-
FNA
21h 20m
2 stops
Multiple Airlines Logo
8:10 pm - 8:20 pm
FNA
-
BOS
29h 10m
3 stops
$1,670Multiple Airlines
Sun, Nov 29 - Tue, Dec 29
Ethiopian Air Logo
11:30 am - 4:25 pm
BOS
-
FNA
23h 55m
3 stops
Ethiopian Air Logo
8:05 am - 8:44 am
FNA
-
BOS
29h 39m
3 stops
$1,712Ethiopian Air
Thu, Dec 3 - Sun, Dec 27
Royal Air Maroc Logo
7:50 pm - 4:20 am
BOS
-
FNA
51h 30m
2 stops
Royal Air Maroc Logo
5:20 am - 7:41 am
FNA
-
BOS
55h 21m
2 stops
$1,899Royal Air Maroc
Thu, Dec 3 - Sun, Dec 27
Ethiopian Air Logo
7:35 pm - 4:45 pm
BOS
-
FNA
40h 10m
3 stops
Ethiopian Air Logo
8:05 am - 11:17 pm
FNA
-
BOS
20h 12m
3 stops
$1,929Ethiopian Air
Sun, Jun 28 - Mon, Jul 13
Multiple Airlines Logo
5:10 am - 4:45 pm
BOS
-
FNA
31h 35m
3 stops
Multiple Airlines Logo
8:05 am - 11:59 pm
FNA
-
BOS
19h 54m
3 stops
$1,944Multiple Airlines
Sun, Jun 28 - Mon, Jul 13
United Airlines Logo
8:00 am - 5:15 pm
BOS
-
FNA
29h 15m
2 stops
United Airlines Logo
6:35 pm - 11:59 pm
FNA
-
BOS
33h 24m
3 stops
$1,966United Airlines
Sun, Jul 12 - Thu, Jul 16
Ethiopian Air Logo
8:00 am - 4:25 pm
BOS
-
FNA
28h 25m
3 stops
Ethiopian Air Logo
8:05 am - 8:17 am
FNA
-
BOS
28h 12m
3 stops
$1,980Ethiopian Air
Sat, Jun 27 - Sat, Jul 11
Multiple Airlines Logo
5:45 am - 4:25 pm
BOS
-
FNA
30h 40m
3 stops
Multiple Airlines Logo
8:05 am - 11:59 pm
FNA
-
BOS
19h 54m
3 stops
$2,007Multiple Airlines
Sun, Jun 28 - Mon, Jul 13
Multiple Airlines Logo
5:10 am - 4:45 pm
BOS
-
FNA
31h 35m
3 stops
Multiple Airlines Logo
8:05 am - 11:59 pm
FNA
-
BOS
19h 54m
3 stops
$2,013Multiple 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.

What is the cheapest month to fly from Boston to Sierra Leone?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Sierra Leone, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Sierra Leone is September, when tickets cost $0 (return) on average. On the other hand, the most expensive months are August and January, when the average cost of round-trip tickets is $1,615 and $1,614 respectively.

Good to know

Low seasonMarch
Cheapest flight$799
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 7% 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
Turkish AirlinesOverall score based on 4410 reviews
7.3Boarding
7.8Crew
7.5Food
7.3Comfort
7.5Entertainment
Airline reviews

Entertainment system is okay, flight attendants were ok. Leg space very narrow, I couldn’t get what I wanted to eat, dinner nor breakfast.

6.0 GoodAnonymous, Jun 2026
SFO - IST
Read more Turkish Airlines reviews

Entertainment system is okay, flight attendants were ok. Leg space very narrow, I couldn’t get what I wanted to eat, dinner nor breakfast.

Excellent experience with business class area. Staff was attentive and food was amazing. Only one bathroom for business class which was logistically difficult for the staff while preparing meals. Need to offer fluids with meals. I did not get enough water to drink. But overall I rate it 5 star.

On time, great food, good drink selection! Only down was alcohol-free lounge. Lufthansa had a much better offering!

Be honest of what you sell: This was sold as Business Class on all three legs, while the JetBlue plane didn't even have business class seats, and wanted $164 for extra legroom seats.

Seat assignments for family traveling with 2 children. Loud crowd during sleep time

It was crowded… the bathrooms dirty and smelly. The seats have been made even smaller.

delayed to take off from detroit by 3 hours lost baggage in istanbul and now in venice without baggage

Seats were very tight with poor legroom - and I am average height. During the 12 hour flight, tiny paper cups of drinks we're only offered during the super and breakfast services, with the crew nowhere to be seen in between. One of the bathrooms was out of order, leading to long lines waiting to use the remaining two available to the economy class passengers.

short flight but we still got a very nice lunch and the crew did an excellent job in taking care of us

For that price on Business class, I expected to have the pod seats. These were configured as 2/3/2 and my seat mate talked half the flight with a friend across the isle, loudly. Very uncouth.

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Flight cancelled instead of leaving Friday am now, maybe, leaving Sunday

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Everything was better but france airlines more better than them

Good leg room for people of all sizes. Pleasent crew.

WE didint profit of food , but for the other think all was good

Spacious and clean aircraft. Good food. Economy will always be squeezed but thankfully I had an aisle seat for stretching exercises. Good selection of movies, particularly Spike Lee joint.

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

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

Information on your arrival and departure airports