$1,529 Find Cheap Flights from Boston to Sierra Leone

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Sierra Leone departing on 10/23. 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

Fri, Oct 23 - Fri, Oct 30
Royal Air Maroc Logo
8:10 pm - 4:20 am
BOS
-
FNA
28h 10m
2 stops
Royal Air Maroc Logo
5:20 am - 7:52 am
FNA
-
BOS
30h 32m
2 stops
$1,529Royal Air Maroc
Tue, Oct 20 - Tue, Oct 27
Air Canada Logo
5:50 am - 5:25 pm
BOS
-
FNA
31h 35m
2 stops
Air Canada Logo
8:10 pm - 4:57 pm
FNA
-
BOS
24h 47m
3 stops
$1,602Air Canada
Thu, Nov 5 - Fri, Feb 5
Royal Air Maroc Logo
8:30 pm - 4:20 am
BOS
-
FNA
50h 50m
2 stops
Royal Air Maroc Logo
5:20 am - 7:57 am
FNA
-
BOS
31h 37m
2 stops
$1,609Royal Air Maroc
Fri, Oct 23 - Fri, Oct 30
Brussels Airlines Logo
3:35 pm - 6:40 pm
BOS
-
FNA
47h 05m
3 stops
Brussels Airlines Logo
8:10 pm - 4:57 pm
FNA
-
BOS
24h 47m
3 stops
$1,622Brussels Airlines
Thu, Nov 5 - Fri, Feb 5
United Airlines Logo
10:44 am - 6:40 pm
BOS
-
FNA
26h 56m
2 stops
United Airlines Logo
8:10 pm - 5:28 pm
FNA
-
BOS
26h 18m
3 stops
$1,712United Airlines
Thu, Nov 5 - Fri, Feb 5
Multiple Airlines Logo
12:30 pm - 4:25 pm
BOS
-
FNA
22h 55m
3 stops
Multiple Airlines Logo
8:05 am - 11:17 pm
FNA
-
BOS
20h 12m
3 stops
$1,746Multiple Airlines
Sun, Sep 27 - Sat, Oct 3
Ethiopian Air Logo
5:45 am - 4:45 pm
BOS
-
FNA
31h 00m
3 stops
Ethiopian Air Logo
8:05 am - 11:59 pm
FNA
-
BOS
19h 54m
3 stops
$1,798Ethiopian Air
Thu, Oct 22 - Fri, Oct 30
Multiple Airlines Logo
6:55 am - 4:25 am
BOS
-
FNA
17h 30m
2 stops
Multiple Airlines Logo
5:20 am - 11:48 pm
FNA
-
BOS
22h 28m
2 stops
$1,822Multiple Airlines
Wed, Jul 22 - Thu, Aug 6
United Airlines Logo
5:45 am - 5:15 pm
BOS
-
FNA
31h 30m
2 stops
United Airlines Logo
6:35 pm - 11:59 pm
FNA
-
BOS
33h 24m
3 stops
$1,863United Airlines
Fri, Jul 24 - Thu, Aug 6
United Airlines Logo
6:05 pm - 5:25 pm
BOS
-
FNA
43h 20m
2 stops
United Airlines Logo
6:35 pm - 11:59 pm
FNA
-
BOS
33h 24m
3 stops
$1,869United 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$1,529
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 6% 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
7.5Entertainment
7.5Food
7.3Comfort
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.

I paid for a confirmed upgraded aisle seat and was moved to a center seat in the back of the plane at the last minute.

Smooth travel. Immediate update prior flight delay so I can arrange myself properly without too rush.

Everything was the best it could be. Crew found me with pre- ordered food. Excellent experience!

Improve the food offerings and cabin seating. My wife would prefer to fly another airline, even with a connection for a more comfortable trip. A 737-8 should not be scheduled for a 6 hour segment, which turned into 7.5 hours due to the origin ground delay.

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

The flight was delayed, they didn’t even have water for the toilets or for drinks

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

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