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

One-way options have recently been found by users for as low as $590 on Royal Air Maroc. Other airlines that offer cheap prices include United Airlines from $728 and Turkish Airlines from $770 one-way.

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 airlines that fly from Washington, D.C. Dulles Intl Airport to Sierra Leone?

Royal Air Maroc, Ethiopian Air and SWISS are the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Sierra Leone.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Sierra Leone?

Find a great deal and save up to 21% by booking at least 58 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Washington, D.C. Dulles Intl Airport to Sierra Leone within the next two weeks, with the cheapest ticket starting at $1,285.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Sierra Leone?

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, March can be a great choice for travel to Sierra Leone. Flights to Sierra Leone from Washington, D.C. Dulles Intl Airport in March are about $1,551 on average during March, but can be found for as low as $1,058.

Can I find deals for flights from Dulles Intl to Sierra Leone that include hotel bookings?

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

How can I find direct flights from Dulles Intl to Sierra Leone?

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

Can I find deals for business class flights from Dulles Intl to Sierra Leone?

Yes. Cheapflights offers flight deals from Dulles Intl 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.

$1,317+ Flights from Washington, D.C. Dulles Intl Airport to Sierra Leone

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Cheap flight deals from Dulles Intl to Sierra Leone

Round-trip from	$1,147 (oojo)
One-way from	$590 (oojo)
Popular in	August
Cheapest in	March
Average price	$1,513

From Washington, D.C. Dulles Intl to Sierra Leone

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One-way flight from Washington, D.C. Dulles Intl to Sierra Leone

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Highest demand for flights based on searches. 14% potential increase in price ($255 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($70 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Dulles Intl to Sierra Leone

Cheapest flights from Dulles Intl to Sierra Leone
Explore the most affordable flight options available from Dulles Intl to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.

Sun 9/285:45 pmIAD - FNA

1 stop19h 40mBrussels Airlines

Sun 11/28:05 pmFNA - IAD

2 stops23h 30mBrussels Airlines

Deal found 6/25

$1,136

Wed 9/39:05 pmIAD - FNA

1 stop26h 50mRoyal Air Maroc

Wed 10/16:50 amFNA - IAD

1 stop16h 15mRoyal Air Maroc

Deal found 6/25

$1,147

Sun 11/3010:00 amIAD - FNA

2 stops25h 45mEthiopian Air

Sun 12/219:00 amFNA - IAD

3 stops28h 00mEthiopian Air

Deal found 6/25

$1,166

Wed 9/35:22 pmIAD - FNA

3 stops44h 03mMultiple Airlines

Wed 10/16:45 pmFNA - IAD

3 stops25h 33mMultiple Airlines

Deal found 6/25

$1,215

Mon 10/68:20 amIAD - FNA

2 stops29h 05mUnited Airlines

Fri 10/106:45 pmFNA - IAD

3 stops25h 41mUnited Airlines

Deal found 6/24

$1,223

Mon 10/65:45 pmIAD - FNA

2 stops43h 40mSWISS

Fri 10/106:45 pmFNA - IAD

3 stops49h 30mSWISS

Deal found 6/23

$1,248

Wed 11/129:10 pmIAD - FNA

1 stop22h 15mTurkish Airlines

Thu 12/111:50 amFNA - IAD

1 stop22h 25mTurkish Airlines

Deal found 6/26

$1,665

Fri 7/255:12 pmIAD - FNA

3 stops44h 13mAir Canada

Fri 8/86:45 pmFNA - IAD

3 stops30h 40mAir Canada

Deal found 6/25

$1,729

Best flights from Dulles Intl to Sierra Leone
Discover carefully curated flight deals from Dulles Intl to Sierra Leone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 26, 2025.

Wed 9/39:05 pmIAD - FNA

1 stop26h 50mRoyal Air Maroc

Wed 10/16:50 amFNA - IAD

1 stop16h 15mRoyal Air Maroc

Deal found 6/25

$1,147

Mon 9/15:37 pmIAD - FNA

2 stops43h 48mMultiple Airlines

Sun 9/146:45 pmFNA - IAD

2 stops22h 45mMultiple Airlines

Deal found 6/24

$1,209

Mon 9/15:35 pmIAD - FNA

1 stop19h 50mBrussels Airlines

Sun 9/146:45 pmFNA - IAD

2 stops22h 45mBrussels Airlines

Deal found 6/24

$1,222

Wed 9/36:40 pmIAD - FNA

2 stops42h 45mUnited Airlines

Wed 10/16:45 pmFNA - IAD

2 stops23h 40mUnited Airlines

Deal found 6/25

$1,224

Wed 9/38:45 pmIAD - FNA

2 stops40h 40mSWISS

Wed 10/16:45 pmFNA - IAD

1 stop23h 40mSWISS

Deal found 6/25

$1,253

Sat 8/210:55 amIAD - FNA

2 stops25h 50mEthiopian Air

Mon 9/18:05 amFNA - IAD

2 stops16h 00mEthiopian Air

Deal found 6/25

$1,449

Mon 9/19:40 pmIAD - FNA

2 stops22h 45mTurkish Airlines

Sat 9/131:25 amFNA - IAD

2 stops22h 20mTurkish Airlines

Deal found 6/24

$1,713

Fri 7/255:12 pmIAD - FNA

3 stops44h 13mAir Canada

Fri 8/86:45 pmFNA - IAD

3 stops30h 40mAir Canada

Deal found 6/25

$1,729

Last-minute flights from Dulles Intl to Sierra Leone
Discover last-minute flight deals from Dulles Intl to Sierra Leone. Data last updated June 26, 2025 and is based on user searches.

Tue 7/110:55 amIAD - FNA

2 stops25h 50mEthiopian Air

Thu 7/249:00 amFNA - IAD

3 stops27h 55mEthiopian Air

Deal found 6/24

$1,657

Fri 7/45:45 pmIAD - FNA

2 stops43h 40mMultiple Airlines

Fri 8/16:45 pmFNA - IAD

2 stops22h 45mMultiple Airlines

Deal found 6/24

$1,683

Fri 7/49:40 pmIAD - FNA

2 stops22h 50mTurkish Airlines

Thu 7/311:30 amFNA - IAD

2 stops38h 15mTurkish Airlines

Deal found 6/24

$1,959

Thu 7/105:35 pmIAD - FNA

1 stop19h 50mUnited Airlines

Sun 8/106:45 pmFNA - IAD

2 stops22h 45mUnited Airlines

Deal found 6/23

$1,687

Thu 7/105:35 pmIAD - FNA

1 stop19h 50mBrussels Airlines

Sun 8/106:45 pmFNA - IAD

1 stop22h 45mBrussels Airlines

Deal found 6/23

$1,727

Mon 7/149:50 pmIAD - FNA

2 stops14h 35mMultiple Airlines

Wed 7/238:05 amFNA - IAD

2 stops16h 00mMultiple Airlines

Deal found 6/25

$1,478

Mon 7/149:05 pmIAD - FNA

2 stops28h 55mRoyal Air Maroc

Sun 7/206:50 amFNA - IAD

1 stop16h 15mRoyal Air Maroc

Deal found 6/24

$1,536

Mon 7/148:45 pmIAD - FNA

2 stops40h 40mSWISS

Wed 7/236:45 pmFNA - IAD

3 stops49h 30mSWISS

Deal found 6/25

$1,549

Mon 7/149:40 pmIAD - FNA

1 stop22h 50mTurkish Airlines

Tue 7/221:30 amFNA - IAD

1 stop38h 15mTurkish Airlines

Deal found 6/25

$1,957

Fri 7/255:12 pmIAD - FNA

3 stops44h 13mAir Canada

Fri 8/86:45 pmFNA - IAD

3 stops30h 40mAir Canada

Deal found 6/25

$1,729

One-way flights from Dulles Intl to Sierra Leone
Search for one-way flight options from Dulles Intl to Sierra Leone. Find affordable one-way fares based on user searches. Data last updated June 26, 2025.

Fri 7/259:05 pmIAD - FNA

2 stops28h 55mRoyal Air Maroc

Deal found 6/26

$590

Wed 7/1610:19 pmIAD - FNA

2 stops39h 06mUnited Airlines

Deal found 6/24

$728

Wed 7/1610:20 pmIAD - FNA

3 stops53h 15mMultiple Airlines

Deal found 6/24

$757

Fri 7/251:30 pmIAD - FNA

1 stop31h 00mTurkish Airlines

Deal found 6/24

$770

Fri 7/255:12 pmIAD - FNA

3 stops44h 13mAir Canada

Deal found 6/26

$1,053

Mon 6/305:35 pmIAD - FNA

1 stop19h 50mBrussels Airlines

Deal found 6/26

$1,373

Mon 6/309:50 pmIAD - FNA

2 stops38h 35mEthiopian Air

Deal found 6/26

$1,467

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Freetown

IAD - FNA

IADFNA

Washington, D.C. Dulles Intl

Wed 9/3

9:05 pm-3:55 am

1 stop26h 50m

Freetown Lungi Intl

Wed 10/1

6:50 am-7:05 pm

1 stop16h 15m

$1,147

Washington, D.C.Freetown

IAD - FNA

IADFNA

Washington, D.C. Dulles Intl

Mon 9/1

5:37 pm-5:25 pm

2 stops43h 48m

Freetown Lungi Intl

Sun 9/14

6:45 pm-1:30 pm

2 stops22h 45m

$1,209

Washington, D.C.Freetown

IAD - FNA

IADFNA

Washington, D.C. Dulles Intl

Mon 9/1

5:35 pm-5:25 pm

1 stop19h 50m

Freetown Lungi Intl

Sun 9/14

6:45 pm-1:30 pm

2 stops22h 45m

$1,222

Washington, D.C.Freetown

IAD - FNA

IADFNA

Washington, D.C. Dulles Intl

Wed 9/3

6:40 pm-5:25 pm

2 stops42h 45m

Freetown Lungi Intl

Wed 10/1

6:45 pm-2:25 pm

2 stops23h 40m

$1,224

Washington, D.C.Freetown

IAD - FNA

IADFNA

Washington, D.C. Dulles Intl

Wed 9/3

8:45 pm-5:25 pm

2 stops40h 40m

Freetown Lungi Intl

Wed 10/1

6:45 pm-2:25 pm

1 stop23h 40m

$1,253

Washington, D.C.Freetown

IAD - FNA

IADFNA

Washington, D.C. Dulles Intl

Sat 8/2

10:55 am-4:45 pm

2 stops25h 50m

Freetown Lungi Intl

Mon 9/1

8:05 am-8:05 pm

2 stops16h 00m

$1,449

Washington, D.C.Freetown

IAD - FNA

IADFNA

Washington, D.C. Dulles Intl

Mon 9/1

9:40 pm-12:25 am

2 stops22h 45m

Freetown Lungi Intl

Sat 9/13

1:25 am-7:45 pm

2 stops22h 20m

$1,713

Washington, D.C.Freetown

IAD - FNA

IADFNA

Washington, D.C. Dulles Intl

Fri 7/25

5:12 pm-5:25 pm

3 stops44h 13m

Freetown Lungi Intl

Fri 8/8

6:45 pm-9:25 pm

3 stops30h 40m

$1,729

Washington, D.C.Freetown

IAD - FNA

IADFNA

Washington, D.C. Dulles Intl

Fri 7/25

9:05 pm-6:00 am

2 stops28h 55m

$590

Washington, D.C.Freetown

IAD - FNA

IADFNA

Washington, D.C. Dulles Intl

Wed 7/16

10:19 pm-5:25 pm

2 stops39h 06m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/26

Showing 1-10 of 15 results

Best time to book a flight from Dulles Intl to Sierra Leone

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

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. Dulles Intl Airport to Sierra Leone

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sierra Leone (average of $1,174). Flying from Washington, D.C. Dulles Intl Airport to Sierra Leone in December is currently the most expensive (average of $1,886). 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.

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

When flying from Washington, D.C. Dulles Intl Airport 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.

Reviews of airlines servicing Sierra Leone

See what other customers who have flown with SWISS, United Airlines, and Brussels Airlines from Washington, D.C. Dulles Intl Airport to Sierra Leone have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

SWISS

7.5

Good

1,649 reviews

Reviews

1 / 20

10.0

Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight

SWISS

7.5

Good

1,649 reviews

SWISS

7.5

Good

1,649 reviews

Reviews

1 / 20

10.0

Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight

United Airlines

7.4

Good

8,838 reviews

SWISS

7.5

Good

1,649 reviews

Reviews

1 / 20

10.0

Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight

Brussels Airlines

7.4

Good

358 reviews

SWISS

7.5

Good

1,649 reviews

Reviews

1 / 20

10.0

Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight

Turkish Airlines

7.3

Good

3,876 reviews

SWISS

7.5

Good

1,649 reviews

Reviews

1 / 20

10.0

Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight

Ethiopian Air

7.2

Good

785 reviews

SWISS

7.5

Good

1,649 reviews

Reviews

1 / 20

10.0

Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight

Related info for your journey

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Sierra Leone one-way?
One-way options have recently been found by users for as low as $590 on Royal Air Maroc. Other airlines that offer cheap prices include United Airlines from $728 and Turkish Airlines from $770 one-way.
Can I find deals for flights from Dulles Intl to Sierra Leone that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Sierra Leone flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Sierra Leone?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Sierra Leone.
Can I find deals for business class flights from Dulles Intl to Sierra Leone?
Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Sierra Leone?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sierra Leone (average of $1,174). Flying from Washington, D.C. Dulles Intl Airport to Sierra Leone in December is currently the most expensive (average of $1,886). 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

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Top 6 airlines flying from Dulles Intl to Sierra Leone

Airline	Cheapest	Average	Flexibility	On-time
Turkish Airlines	Cheapest$1,049	Average$1,162	FlexibilityNo cancel fee	On-time77%
Ethiopian Air	Cheapest$1,109	Average$1,848	FlexibilityNo cancel fee	On-time72%
Royal Air Maroc	Cheapest$1,112	Average$1,315	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$1,202	Average$1,682	FlexibilityNo cancel fee	On-time69%
Brussels Airlines	Cheapest$1,232	Average$1,573	FlexibilityNo cancel fee	On-timeN/A
SWISS	Cheapest$1,254	Average$1,591	FlexibilityNo cancel fee	On-time79%

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$590+ Cheap flights from Dulles Intl (IAD) 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl 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 Dulles Intl to Sierra Leone

Keep the following information in mind while searching for Dulles Intl to Sierra Leone flight deals. Data was last updated June 26, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to Sierra Leone

Cheapest flights from Dulles Intl to Sierra LeoneExplore the most affordable flight options available from Dulles Intl to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.

Explore the most affordable flight options available from Dulles Intl to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Dulles Intl to Sierra Leone

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

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Sierra Leone

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

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

Find hourly flight availability from Dulles Intl to Sierra Leone. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 26, 2025.

Reviews of airlines servicing Sierra Leone

See what other customers who have flown with SWISS, United Airlines, and Brussels Airlines from Washington, D.C. Dulles Intl Airport to Sierra Leone have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Sierra Leone. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

Can I find deals for flights from Dulles Intl to Sierra Leone that include hotel bookings?

How can I find direct flights from Dulles Intl to Sierra Leone?

Can I find deals for business class flights from Dulles Intl to Sierra Leone?

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

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

Top 6 airlines flying from Dulles Intl to Sierra Leone

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Cheapest flights from Dulles Intl to Sierra Leone
Explore the most affordable flight options available from Dulles Intl to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.