Find flights
When to book
Airlines
FAQs

Cheap flights from Sierra Leone to London Heathrow Airport from £469

FNA — LHR
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sierra Leone to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Sierra Leone to Heathrow

Mon 21/1205:20 -
1 stop10h 10m
Mon 11/117:15 -
1 stop11h 05m
Deal found 28/10£679
Thu 12/1107:55 -
2 stops31h 35m
Thu 19/1117:25 -
2 stops24h 05m
Deal found 26/10£730
Wed 18/1120:10 -
2 stops13h 55m
Wed 17/206:50 -
1 stop11h 50m
Deal found 26/10£776
Fri 6/1118:30 -
2 stops21h 00m
Sat 14/1117:25 -
2 stops24h 05m
Deal found 28/10£788
Wed 18/1120:10 -
3 stops16h 50m
Wed 17/206:50 -
1 stop11h 50m
Deal found 26/10£791
Mon 21/1219:45 -
2 stops21h 20m
Mon 11/106:50 -
1 stop11h 35m
Deal found 28/10£796
Sun 15/1118:30 -
2 stops21h 00m
Fri 20/1117:25 -
2 stops46h 55m
Deal found 29/10£797
Mon 21/1219:45 -
2 stops21h 20m
Mon 11/118:40 -
2 stops24h 00m
Deal found 28/10£806
Wed 4/1107:55 -
2 stops31h 35m
Mon 23/1117:25 -
2 stops24h 05m
Deal found 29/10£812
Wed 4/1107:55 -
2 stops31h 35m
Tue 17/1117:25 -
2 stops46h 55m
Deal found 26/10£818
Tue 22/1220:10 -
2 stops20h 55m
Fri 8/113:45 -
2 stops52h 55m
Deal found 27/10£824

Find flight deals from Sierra Leone to Heathrow

Round-trip from

£679

One-way from

£469

Popular in

August

Cheapest in

December

Average price

£884
Royal Air Maroc
  • Royal Air Maroc
  • 21/12-11/1
  • 2 total stops
  • 21h 15m total
  • Sierra Leone to London
Search Deals
Royal Air Maroc
  • Royal Air Maroc
  • 24/3-31/12
  • 1 total stop
  • 11h 40m total
  • Sierra Leone to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Sat 26/12

05:20-15:45

1 stop10h 25m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£474

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Sun 27/12

05:20-15:45

1 stop10h 25m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£485

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Wed 9/12

05:20-17:00

1 stop11h 40m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£486

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Fri 26/3

05:20-15:50

1 stop10h 30m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£496

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Sun 6/12

18:30-15:30

2 stops21h 00m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£520

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Tue 1/12

18:30-15:30

2 stops21h 00m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£520

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Sun 27/12

07:55-15:30

2 stops31h 35m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£522

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Wed 9/12

07:55-15:30

2 stops31h 35m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£522

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Wed 18/11

07:55-15:30

2 stops31h 35m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£522

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Wed 2/12

07:55-15:30

2 stops31h 35m

London Heathrow

Wed 31/12

00:00-23:00

Nonstop0h 00m

£543

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Sierra Leone to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Sierra Leone with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Sierra Leone to London Heathrow Airport

What is the cheapest month to book a flight from Sierra Leone to London Heathrow Airport?

Currently, June is the cheapest month in which you can book a flight from Sierra Leone to London Heathrow Airport (average of £649). Flying from Sierra Leone to London Heathrow Airport in August is currently the most expensive (average of £1,806). 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.

Reviews of airlines servicing Heathrow

Check out reviews from past customers who have flown with Brussels Airlines,Ethiopian Air, andRoyal Air Maroc from Sierra Leone to London Heathrow Airport 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.
Brussels Airlines
7.3
Good
438 reviews
Check prices

Crew

7.9

Comfort

7.1

Entertainment

6.2

Food

6.4

Boarding

7.4

Overall

7.3

Reviews

1 / 20
8.0
Excellent

Courtney,Jul 2026

MXP - YUL

For a flight this long, the airline needs to use a plane with lay flat seats. It greatly and negatively impacted the experience. The BIG complaint I have about the flight was the temperature. I was wearing a jogging suit with a t-shirt under, I also had my jacket on my legs and the one blanket I could get onboard over the top of my body with a hood on my head and I was freezing! The reason I could only get one blanket is everyone else was also freezing and also requested blankets. I hope this stops!
Brussels Airlines
7.3
Good
438 reviews
Brussels Airlines
7.3
Good
438 reviews
Check prices

Crew

7.9

Comfort

7.1

Entertainment

6.2

Food

6.4

Boarding

7.4

Overall

7.3

Reviews

1 / 20
8.0
Excellent

Courtney,Jul 2026

MXP - YUL

For a flight this long, the airline needs to use a plane with lay flat seats. It greatly and negatively impacted the experience. The BIG complaint I have about the flight was the temperature. I was wearing a jogging suit with a t-shirt under, I also had my jacket on my legs and the one blanket I could get onboard over the top of my body with a hood on my head and I was freezing! The reason I could only get one blanket is everyone else was also freezing and also requested blankets. I hope this stops!
Ethiopian Air
7.1
Good
1,043 reviews
Brussels Airlines
7.3
Good
438 reviews
Check prices

Crew

7.9

Comfort

7.1

Entertainment

6.2

Food

6.4

Boarding

7.4

Overall

7.3

Reviews

1 / 20
8.0
Excellent

Courtney,Jul 2026

MXP - YUL

For a flight this long, the airline needs to use a plane with lay flat seats. It greatly and negatively impacted the experience. The BIG complaint I have about the flight was the temperature. I was wearing a jogging suit with a t-shirt under, I also had my jacket on my legs and the one blanket I could get onboard over the top of my body with a hood on my head and I was freezing! The reason I could only get one blanket is everyone else was also freezing and also requested blankets. I hope this stops!
Royal Air Maroc
6.2
Okay
622 reviews
Brussels Airlines
7.3
Good
438 reviews
Check prices

Crew

7.9

Comfort

7.1

Entertainment

6.2

Food

6.4

Boarding

7.4

Overall

7.3

Reviews

1 / 20
8.0
Excellent

Courtney,Jul 2026

MXP - YUL

For a flight this long, the airline needs to use a plane with lay flat seats. It greatly and negatively impacted the experience. The BIG complaint I have about the flight was the temperature. I was wearing a jogging suit with a t-shirt under, I also had my jacket on my legs and the one blanket I could get onboard over the top of my body with a hood on my head and I was freezing! The reason I could only get one blanket is everyone else was also freezing and also requested blankets. I hope this stops!

Related info for your journey

  • How long is the flight from Sierra Leone to London Heathrow Airport?

    Airlines like Royal Air Maroc, Kenya Airways, and Brussels Airlines fly from Sierra Leone to London Heathrow Airport in about 10h 10m. The time it takes to get you to your destination can typically vary by up to 21h 25m. The distance between Sierra Leone and London Heathrow Airport is about 3046 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Sierra Leone to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as £467 on Royal Air Maroc. Other airlines that offer cheap prices include Brussels Airlines from £504 and SWISS from £536 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sierra Leone to Heathrow 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 Sierra Leone to London Heathrow Airport?

    Currently, June is the cheapest month in which you can book a flight from Sierra Leone to London Heathrow Airport (average of £649). Flying from Sierra Leone to London Heathrow Airport in August is currently the most expensive (average of £1,806). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Luton
Milton Keynes
Slough
Wembley
Gatwick
Ilford
Hayes
Croydon
Northampton
Barnet
Eastbourne
Brentford
Southend-on-Sea
Southall
Enfield
Watford
Kingston upon Thames
Dagenham
Dover

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Sierra Leone to Heathrow

OR Tambo to Heathrow flights
Lagos to Heathrow flights
Lagos to Gatwick flights
OR Tambo to Gatwick flights
Cairo to Heathrow flights
OR Tambo to Stansted flights
OR Tambo to London City flights
Cape Town to Heathrow flights
Jomo Kenyatta Intl to Heathrow flights
Accra to Heathrow flights
Abuja to Heathrow flights
Lagos to Stansted flights
Lanseria to Heathrow flights
OR Tambo to Luton flights
Lagos to London City flights
Port Louis to Gatwick flights
Casablanca to Gatwick flights
Casablanca to Heathrow flights
Accra to Gatwick flights
Cape Town to Gatwick flights
Marrakech to Heathrow flights
Cairo to Stansted flights
Cape Town to Stansted flights
Cairo to Gatwick flights
Algiers to Heathrow flights
Jomo Kenyatta Intl to Gatwick flights
Tunis to Heathrow flights
Algiers to Gatwick flights
Lagos to Luton flights
Jomo Kenyatta Intl to Stansted flights
Marrakech to Stansted flights
Cairo to London City flights
Marrakech to Gatwick flights
Cape Town to London City flights
Cairo to Luton flights
Abuja to Stansted flights
Accra to London City flights
Accra to Stansted flights
Abuja to Gatwick flights
Jomo Kenyatta Intl to London City flights
Algiers to Stansted flights
Marrakech to Luton flights
Casablanca to Stansted flights
Port Louis to Heathrow flights
Algiers to London City flights
Rabat to Heathrow flights
Algiers to Luton flights
Port Louis to Stansted flights
Marrakech to London City flights
Agadir to Gatwick flights

Top 3 airlines flying from Sierra Leone to Heathrow

AirlineCheapestAverageFlexibilityOn-time
Royal Air MarocCheapest£649Average£728FlexibilityNo cancel feeOn-time75%
Search Royal Air Maroc flights
Brussels AirlinesCheapest£682Average£786FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Ethiopian AirCheapest£1,686Average£1,806FlexibilityNo cancel feeOn-time72%
Search Ethiopian Air flights

Fly with Cheapflights

How does Cheapflights help users find flights from Sierra Leone to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sierra Leone to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Sierra Leone to Heathrow?

Cheapflights helps you find that perfect flight to Heathrow from Sierra Leone by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Sierra Leone to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sierra Leone to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Sierra Leone to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Sierra Leone to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.