How long is the flight from Washington, D.C. to Sierra Leone?

Airlines like United Airlines and Brussels Airlines fly from Washington, D.C. to Sierra Leone in about 24h 37m. The time it takes to get you to your destination can typically vary by up to 38m. Washington, D.C. and Sierra Leone are separated by a distance of 4463 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines to fly from Washington, D.C. to Sierra Leone one-way?

The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $666. However, be on the lookout for offers from SWISS and Brussels Airlines, as they are both options that can get you from Washington, D.C. to Sierra Leone for a low price.

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 are the most popular routes from Washington, D.C. to Sierra Leone?

When deciding which route to take from Washington, D.C. to Sierra Leone consider Washington, D.C. Dulles Intl - Freetown Lungi Intl, Washington, D.C. Reagan-National - Freetown Lungi Intl or Baltimore/Washington - Freetown Lungi Intl as they are the most popular.

What are the most popular airlines that fly from Washington, D.C. to Sierra Leone?

Consider Royal Air Maroc, Ethiopian Air or Turkish Airlines when booking your flight. These represent the most popular airlines when flying from Washington, D.C. to Sierra Leone.

What is the cheapest time of day to fly from WAS to SL?

When flying from Washington, D.C. to Sierra Leone, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Washington, D.C. to Sierra Leone that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Sierra Leone flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Sierra Leone?

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

Can I find deals for business class flights from Washington, D.C. to Sierra Leone?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

$624+ Cheap Flights from Washington, D.C. to Sierra Leone

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Washington, D.C. to Sierra Leone with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Washington, D.C. to Sierra Leone

Cheapest

Best

Last-minute

One-way

Cheapest flights from Washington, D.C. to Sierra Leone
Explore the most affordable flight options available from Washington, D.C. to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

Mon 8/319:00 pm -

1 stop27h 25m

Wed 9/165:25 am -

1 stop17h 35m

Deal found 8/10

$1,204

Wed 10/2810:05 pm -

1 stop26h 15m

Fri 11/65:20 am -

1 stop18h 45m

Deal found 8/10

$1,214

Sat 10/3111:00 am -

2 stops25h 45m

Mon 11/168:00 am -

2 stops16h 05m

Deal found 8/7

$1,223

Wed 9/309:00 pm -

1 stop27h 25m

Wed 11/115:20 am -

1 stop18h 45m

Deal found 8/11

$1,232

Mon 10/269:50 pm -

2 stops14h 30m

Wed 11/48:00 am -

2 stops16h 05m

Deal found 8/10

$1,249

Wed 9/239:20 pm -

2 stops15h 00m

Mon 10/58:00 am -

2 stops15h 30m

Deal found 8/9

$1,252

Mon 9/219:20 pm -

2 stops15h 00m

Mon 9/288:00 am -

2 stops15h 30m

Deal found 8/7

$1,264

Mon 9/289:00 pm -

1 stop27h 25m

Sun 10/255:20 am -

1 stop18h 45m

Deal found 8/7

$1,273

Fri 11/209:05 pm -

1 stop26h 15m

Fri 11/275:20 am -

1 stop18h 45m

Deal found 8/9

$1,287

Mon 12/78:50 pm -

2 stops14h 30m

Wed 1/68:00 am -

2 stops16h 05m

Deal found 8/7

$1,289

Wed 12/309:05 pm -

1 stop26h 15m

Mon 2/85:30 pm -

3 stops54h 35m

Deal found 8/9

$1,295

Tue 10/2711:00 am -

2 stops25h 45m

Thu 11/59:00 am -

3 stops28h 00m

Deal found 8/10

$1,300

Best flights from Washington, D.C. to Sierra Leone
Discover carefully curated flight deals from Washington, D.C. to Sierra Leone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.

Mon 2/111:05 am -

2 stops26h 35m

Mon 2/227:45 pm -

3 stops24h 39m

Deal found 8/8

$1,438

Mon 10/266:45 pm -

1 stop19h 55m

Fri 11/138:10 pm -

2 stops23h 20m

Deal found 8/6

$1,475

Sun 9/2712:38 pm -

2 stops24h 37m

Wed 10/76:45 pm -

2 stops23h 30m

Deal found 8/6

$1,480

Mon 10/266:45 pm -

1 stop19h 55m

Wed 11/118:10 pm -

2 stops23h 20m

Deal found 8/6

$1,475

Mon 9/2812:38 pm -

2 stops24h 47m

Fri 11/138:10 pm -

2 stops23h 20m

Deal found 8/11

$1,500

Tue 9/85:45 pm -

1 stop19h 40m

Tue 9/156:45 pm -

2 stops23h 35m

Deal found 8/9

$1,476

Tue 9/293:30 pm -

2 stops21h 55m

Tue 11/108:10 pm -

3 stops28h 05m

Deal found 8/11

$1,510

Thu 11/54:00 pm -

2 stops21h 40m

Mon 11/97:45 pm -

3 stops31h 14m

Deal found 8/8

$1,799

Mon 9/282:59 pm -

2 stops22h 26m

Wed 11/118:10 pm -

3 stops28h 05m

Deal found 8/11

$1,510

Sun 11/223:30 pm -

2 stops21h 55m

Mon 11/307:45 pm -

3 stops24h 39m

Deal found 8/11

$1,627

Mon 9/282:59 pm -

2 stops22h 26m

Thu 11/128:10 pm -

3 stops28h 05m

Deal found 8/11

$1,510

Sun 11/2212:34 pm -

2 stops24h 51m

Mon 11/307:45 pm -

3 stops30h 12m

Deal found 8/11

$1,634

Mon 9/215:45 pm -

1 stop19h 40m

Mon 9/286:35 pm -

2 stops23h 40m

Deal found 8/9

$1,515

Sun 9/275:45 pm -

1 stop19h 30m

Sun 11/88:10 pm -

2 stops23h 20m

Deal found 8/11

$1,515

Wed 9/235:45 pm -

1 stop19h 30m

Sun 9/276:45 pm -

2 stops23h 30m

Deal found 8/8

$1,515

Mon 8/311:00 pm -

2 stops24h 25m

Wed 9/166:45 pm -

3 stops27h 37m

Deal found 8/10

$1,525

Mon 8/312:00 pm -

2 stops23h 25m

Wed 9/166:45 pm -

3 stops29h 24m

Deal found 8/10

$1,525

Tue 9/812:10 pm -

2 stops25h 15m

Tue 9/156:45 pm -

3 stops30h 44m

Deal found 8/11

$1,529

Fri 9/258:30 pm -

3 stops27h 55m

Fri 10/26:45 pm -

3 stops31h 30m

Deal found 8/11

$2,634

Mon 10/263:30 pm -

2 stops23h 10m

Fri 11/68:10 pm -

3 stops27h 52m

Deal found 8/10

$1,529

Fri 11/205:31 pm -

2 stops44h 09m

Fri 11/278:10 pm -

3 stops30h 32m

Deal found 8/9

$2,754

Sat 10/316:10 am -

2 stops32h 30m

Mon 11/167:45 pm -

3 stops30h 57m

Deal found 8/10

$1,634

Sun 11/2910:10 am -

2 stops27h 15m

Fri 2/58:10 pm -

3 stops26h 13m

Deal found 8/7

$2,772

Sat 10/318:30 am -

2 stops30h 10m

Mon 11/167:45 pm -

3 stops27h 30m

Deal found 8/10

$1,634

Wed 9/308:30 pm -

2 stops27h 30m

Tue 11/108:10 pm -

2 stops25h 55m

Deal found 8/11

$2,821

Fri 10/28:10 pm -

2 stops41h 15m

Sun 11/88:10 pm -

3 stops44h 55m

Deal found 8/11

$1,739

Sun 12/65:11 pm -

2 stops44h 29m

Mon 2/17:45 pm -

3 stops30h 12m

Deal found 8/7

$2,347

Sat 12/121:10 pm -

2 stops24h 30m

Fri 1/88:10 pm -

3 stops29h 47m

Deal found 8/8

$2,435

Wed 9/236:05 am -

2 stops31h 10m

Mon 10/196:35 pm -

3 stops27h 08m

Deal found 8/8

$2,438

Sat 1/910:45 am -

3 stops26h 55m

Fri 1/298:10 pm -

3 stops26h 13m

Deal found 8/6

$2,439

Last-minute flights from Washington, D.C. to Sierra Leone
Discover last-minute flight deals from Washington, D.C. to Sierra Leone. Data last updated August 11, 2026 and is based on user searches.

Mon 8/179:00 pm -

1 stop27h 25m

Wed 9/95:25 am -

1 stop17h 35m

Deal found 8/7

$1,313

Fri 8/219:00 pm -

1 stop27h 25m

Fri 9/255:25 am -

1 stop17h 35m

Deal found 8/8

$1,214

Mon 8/319:00 pm -

1 stop27h 25m

Wed 9/165:25 am -

1 stop17h 35m

Deal found 8/10

$1,204

Mon 9/219:20 pm -

2 stops15h 00m

Mon 9/288:00 am -

2 stops15h 30m

Deal found 8/7

$1,264

Wed 9/239:20 pm -

2 stops15h 00m

Mon 10/58:00 am -

2 stops15h 30m

Deal found 8/9

$1,252

Wed 9/239:40 am -

2 stops27h 35m

Mon 10/196:35 pm -

3 stops25h 05m

Deal found 8/8

$1,482

Mon 9/289:00 pm -

1 stop27h 25m

Sun 10/255:20 am -

1 stop18h 45m

Deal found 8/7

$1,273

Mon 9/289:00 pm -

1 stop27h 25m

Fri 11/135:20 am -

1 stop18h 45m

Deal found 8/11

$1,365

Tue 9/2910:55 am -

2 stops25h 50m

Mon 11/98:00 am -

2 stops16h 05m

Deal found 8/11

$1,372

Wed 9/309:00 pm -

1 stop27h 25m

Wed 11/115:20 am -

1 stop18h 45m

Deal found 8/11

$1,232

Wed 9/309:20 pm -

2 stops15h 00m

Mon 11/98:00 am -

2 stops16h 05m

Deal found 8/11

$1,306

Wed 9/309:20 pm -

2 stops15h 00m

Tue 11/109:00 am -

3 stops28h 00m

Deal found 8/11

$1,350

One-way flights from Washington, D.C. to Sierra Leone
Search for one-way flight options from Washington, D.C. to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.

Mon 8/179:00 pm -

1 stop27h 25m

Deal found 8/8

$624

Mon 8/176:10 am -

2 stops42h 15m

Deal found 8/8

$685

Mon 8/175:40 pm -

2 stops19h 45m

Deal found 8/8

$737

Sat 11/216:20 pm -

2 stops43h 05m

Deal found 8/9

$751

Sat 11/215:31 pm -

2 stops43h 54m

Deal found 8/9

$752

Fri 11/206:00 am -

2 stops41h 20m

Deal found 8/9

$761

Mon 8/171:00 pm -

2 stops24h 25m

Deal found 8/8

$802

Mon 11/306:00 am -

2 stops41h 20m

Deal found 8/9

$809

Fri 11/205:31 pm -

2 stops44h 09m

Deal found 8/9

$1,008

Thu 12/101:10 pm -

3 stops46h 35m

Deal found 8/8

$1,010

Mon 8/179:20 pm -

3 stops39h 25m

Deal found 8/8

$1,050

Tue 12/227:30 am -

2 stops30h 10m

Deal found 8/8

$1,053

Find flight deals from Washington, D.C. to Sierra Leone

Most accurate provider	Ovago 3 stars
Most trusted provider	Ovago 3 stars
Round-trip from	$1,204 (Gotogate)
One-way from	$624 (oojo)
Popular in	December
Cheapest in	February
Average price	$1,344

Provider with most accurate pricing for Washington, D.C. (WAS)-Freetown Lungi Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Freetown Lungi Intl flights.

Search Deals

From Washington, D.C. (WAS) to Sierra Leone

Search Deals

One-way flight from Washington, D.C. (WAS) to Sierra Leone

Search Deals

Highest demand for flights based on searches. 3% potential increase in price ($49 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Sierra Leone that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Freetown

DCA Washington, D.C. Reagan-National - FNA Freetown Lungi Intl

DCAFNA

Washington, D.C. Reagan-National

Mon 2/1

11:05 am-6:40 pm

2 stops26h 35m

Freetown Lungi Intl

Mon 2/22

7:45 pm-3:24 pm

3 stops24h 39m

$1,438

Washington, D.C.Freetown

IAD Washington, D.C. Dulles Intl - FNA Freetown Lungi Intl

IADFNA

Washington, D.C. Dulles Intl

Mon 10/26

6:45 pm-6:40 pm

1 stop19h 55m

Freetown Lungi Intl

Fri 11/13

8:10 pm-2:30 pm

2 stops23h 20m

$1,475

Washington, D.C.Freetown

IAD Washington, D.C. Dulles Intl - FNA Freetown Lungi Intl

IADFNA

Washington, D.C. Dulles Intl

Mon 10/26

6:45 pm-6:40 pm

1 stop19h 55m

Freetown Lungi Intl

Wed 11/11

8:10 pm-2:30 pm

2 stops23h 20m

$1,475

Washington, D.C.Freetown

IAD Washington, D.C. Dulles Intl - FNA Freetown Lungi Intl

IADFNA

Washington, D.C. Dulles Intl

Tue 9/8

5:45 pm-5:25 pm

1 stop19h 40m

Freetown Lungi Intl

Tue 9/15

6:45 pm-2:20 pm

2 stops23h 35m

$1,476

Washington, D.C.Freetown

IAD Washington, D.C. Dulles Intl - FNA Freetown Lungi Intl

IADFNA

Washington, D.C. Dulles Intl

Sun 9/27

12:38 pm-5:15 pm

2 stops24h 37m

Freetown Lungi Intl

Wed 10/7

6:45 pm-2:15 pm

2 stops23h 30m

$1,480

Washington, D.C.Freetown

IAD Washington, D.C. Dulles Intl - FNA Freetown Lungi Intl

IADFNA

Washington, D.C. Dulles Intl

Mon 9/28

12:38 pm-5:25 pm

2 stops24h 47m

Freetown Lungi Intl

Fri 11/13

8:10 pm-2:30 pm

2 stops23h 20m

$1,500

Washington, D.C.Freetown

DCA Washington, D.C. Reagan-National - FNA Freetown Lungi Intl

DCAFNA

Washington, D.C. Reagan-National

Tue 9/29

3:30 pm-5:25 pm

2 stops21h 55m

Freetown Lungi Intl

Tue 11/10

8:10 pm-7:15 pm

3 stops28h 05m

$1,510

Washington, D.C.Freetown

DCA Washington, D.C. Reagan-National - FNA Freetown Lungi Intl

DCAFNA

Washington, D.C. Reagan-National

Mon 9/28

2:59 pm-5:25 pm

2 stops22h 26m

Freetown Lungi Intl

Wed 11/11

8:10 pm-7:15 pm

3 stops28h 05m

$1,510

Washington, D.C.Freetown

DCA Washington, D.C. Reagan-National - FNA Freetown Lungi Intl

DCAFNA

Washington, D.C. Reagan-National

Mon 9/28

2:59 pm-5:25 pm

2 stops22h 26m

Freetown Lungi Intl

Thu 11/12

8:10 pm-7:15 pm

3 stops28h 05m

$1,510

Washington, D.C.Freetown

IAD Washington, D.C. Dulles Intl - FNA Freetown Lungi Intl

IADFNA

Washington, D.C. Dulles Intl

Mon 9/21

5:45 pm-5:25 pm

1 stop19h 40m

Freetown Lungi Intl

Mon 9/28

6:35 pm-2:15 pm

2 stops23h 40m

$1,515

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/8

Showing 1-10 of 54 resultsSorted by cheapest first

...

Best time to book a flight from Washington, D.C. to Sierra Leone

Have a flexible travel schedule? Discover the best time to fly to Sierra Leone from Washington, D.C. with our price prediction graph.

IAD-FNA

DCA-FNA

BWI-FNA

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 Washington, D.C. to Sierra Leone

WAS-SL0

IAD-FNA

DCA-FNA

BWI-FNA

What is the cheapest month to book a flight from Washington, D.C. to Sierra Leone?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Sierra Leone (average of $1,170). Flying from Washington, D.C. to Sierra Leone in July is currently the most expensive (average of $2,013). 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.

How far ahead should I book a flight from Washington, D.C. to Sierra Leone?

The best time to book flights from Washington, D.C. to Sierra Leone is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Sierra Leone

Read reviews from past customers who have flown United Airlines,Brussels Airlines, andEthiopian Air from Washington, D.C. to Sierra Leone. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,104 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

United Airlines

7.4

Good

10,104 reviews

United Airlines

7.4

Good

10,104 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Brussels Airlines

7.3

Good

430 reviews

United Airlines

7.4

Good

10,104 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Ethiopian Air

7.2

Good

1,025 reviews

United Airlines

7.4

Good

10,104 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Royal Air Maroc

6.2

Okay

625 reviews

United Airlines

7.4

Good

10,104 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

How long is the flight from Washington, D.C. to Sierra Leone?
Airlines like United Airlines and Brussels Airlines fly from Washington, D.C. to Sierra Leone in about 24h 37m. The time it takes to get you to your destination can typically vary by up to 38m. Washington, D.C. and Sierra Leone are separated by a distance of 4463 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines to fly from Washington, D.C. to Sierra Leone one-way?
The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $666. However, be on the lookout for offers from SWISS and Brussels Airlines, as they are both options that can get you from Washington, D.C. to Sierra Leone for a low price.
What are the most popular routes from Washington, D.C. to Sierra Leone?
When deciding which route to take from Washington, D.C. to Sierra Leone consider Washington, D.C. Dulles Intl - Freetown Lungi Intl, Washington, D.C. Reagan-National - Freetown Lungi Intl or Baltimore/Washington - Freetown Lungi Intl as they are the most popular.
Can I find deals for flights from Washington, D.C. to Sierra Leone that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Sierra Leone flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Sierra Leone?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Sierra Leone.
Can I find deals for business class flights from Washington, D.C. to Sierra Leone?
Yes. Cheapflights offers flight deals from Washington, D.C. 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.
What is the cheapest month to book a flight from Washington, D.C. to Sierra Leone?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Sierra Leone (average of $1,170). Flying from Washington, D.C. to Sierra Leone in July is currently the most expensive (average of $2,013). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Flights by cabin class

Other flight options

Popular flights

Top destinations

Alternative routes for Washington, D.C. to Sierra Leone

Dulles Intl to Accra flights

Dulles Intl to Lagos flights

Dulles Intl to Cairo flights

Reagan-National to Accra flights

Dulles Intl to Jomo Kenyatta Intl flights

Dulles Intl to Cape Town flights

Dulles Intl to Casablanca flights

Dulles Intl to Marrakech flights

Dulles Intl to Addis Ababa flights

Dulles Intl to OR Tambo flights

Dulles Intl to Douala flights

Dulles Intl to Freetown flights

Reagan-National to Freetown flights

Dulles Intl to Dakar flights

Dulles Intl to Monrovia flights

Dulles Intl to Tunis flights

Dulles Intl to Entebbe flights

Dulles Intl to Yaoundé flights

Dulles Intl to Abuja flights

Reagan-National to Dakar flights

Dulles Intl to Zanzibar flights

Dulles Intl to Dar Es Salaam flights

Dulles Intl to Abidjan flights

Dulles Intl to Banjul flights

Dulles Intl to Harare flights

Dulles Intl to Port Harcourt flights

Dulles Intl to Lomé flights

Reagan-National to Abuja flights

Dulles Intl to Agadir flights

Top 6 airlines flying from Washington, D.C. to Sierra Leone

Airline	Cheapest	Average	Flexibility	On-time
Royal Air Maroc	Cheapest$1,091	Average$1,599	FlexibilityNo cancel fee	On-time75%
Turkish Airlines	Cheapest$1,092	Average$1,280	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$1,209	Average$1,508	FlexibilityNo cancel fee	On-time69%
Brussels Airlines	Cheapest$1,218	Average$1,562	FlexibilityNo cancel fee	On-timeN/A
Ethiopian Air	Cheapest$1,271	Average$1,699	FlexibilityNo cancel fee	On-time72%
SWISS	Cheapest$1,322	Average$1,609	FlexibilityNo cancel fee	On-time79%

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.

$624+ Cheap flights from Washington, D.C. (WAS) to Sierra Leone

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Sierra Leone with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Washington, D.C. to Sierra Leone

Cheapest flights from Washington, D.C. to Sierra LeoneExplore the most affordable flight options available from Washington, D.C. to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

Explore the most affordable flight options available from Washington, D.C. to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

Best flights from Washington, D.C. to Sierra LeoneDiscover carefully curated flight deals from Washington, D.C. to Sierra Leone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.

Discover carefully curated flight deals from Washington, D.C. to Sierra Leone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.

Last-minute flights from Washington, D.C. to Sierra LeoneDiscover last-minute flight deals from Washington, D.C. to Sierra Leone. Data last updated August 11, 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to Sierra Leone. Data last updated August 11, 2026 and is based on user searches.

One-way flights from Washington, D.C. to Sierra LeoneSearch for one-way flight options from Washington, D.C. to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.

Search for one-way flight options from Washington, D.C. to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.

Find flight deals from Washington, D.C. to Sierra Leone

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Sierra Leone that are best for you.

Best time to book a flight from Washington, D.C. to Sierra Leone

Have a flexible travel schedule? Discover the best time to fly to Sierra Leone from Washington, D.C. with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Washington, D.C. to Sierra Leone?

How far ahead should I book a flight from Washington, D.C. to Sierra Leone?

The best time to book flights from Washington, D.C. to Sierra Leone is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Sierra Leone

Related info for your journey

How long is the flight from Washington, D.C. to Sierra Leone?

What are the cheapest airlines to fly from Washington, D.C. to Sierra Leone one-way?

What are the most popular routes from Washington, D.C. to Sierra Leone?

Can I find deals for flights from Washington, D.C. to Sierra Leone that include hotel bookings?

How can I find direct flights from Washington, D.C. to Sierra Leone?

Can I find deals for business class flights from Washington, D.C. to Sierra Leone?

What is the cheapest month to book a flight from Washington, D.C. 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 Washington, D.C. to Sierra Leone

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

Complete your trip

Complete your trip to Sierra Leone by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Washington, D.C. to Sierra Leone by cabin class

Find flights from Washington, D.C. to Sierra Leone, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Washington, D.C. and Sierra Leone flights

Browse other Washington, D.C. and Sierra Leone flight options. Last updated on August 11, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Washington, D.C. to Sierra Leone flights

Consider these flights traveling from Washington, D.C. to Sierra Leone.

Top 6 airlines flying from Washington, D.C. to Sierra Leone

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Washington, D.C. to Sierra Leone
Explore the most affordable flight options available from Washington, D.C. to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

Best flights from Washington, D.C. to Sierra Leone
Discover carefully curated flight deals from Washington, D.C. to Sierra Leone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.

Last-minute flights from Washington, D.C. to Sierra Leone
Discover last-minute flight deals from Washington, D.C. to Sierra Leone. Data last updated August 11, 2026 and is based on user searches.

One-way flights from Washington, D.C. to Sierra Leone
Search for one-way flight options from Washington, D.C. to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.