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Sierra Leone

$1,014+ Cheap flights from Illinois 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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FNA
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Illinois to Sierra Leone

Keep the following information in mind while searching for Illinois to Sierra Leone flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,180
(SWISS)

One-way from

$1,014
(SWISS)
Provider with most accurate pricing for Chicago (CHI)-Freetown Lungi Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Freetown Lungi Intl flights.
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From Illinois to Sierra Leone
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One-way flight from Illinois to Sierra Leone
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Find flight deals from Illinois to Sierra Leone

Cheapest flights from Illinois to Sierra Leone
Explore the most affordable flight options available from Illinois to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This SWISS deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/187:05 pmORD - FNA
2 stops41h 20mSWISS
Wed 6/186:45 pmFNA - ORD
3 stops47h 05mSWISS
Deal found 4/30$1,180
This Orbitz deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/187:05 pmORD - FNA
2 stops41h 20mMultiple Airlines
Wed 6/186:45 pmFNA - ORD
2 stops22h 10mMultiple Airlines
Deal found 4/30$1,669
This Air Canada deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/189:05 pmORD - FNA
3 stops39h 20mAir Canada
Wed 6/186:45 pmFNA - ORD
3 stops24h 56mAir Canada
Deal found 4/30$1,673
This oojo deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1810:15 amORD - FNA
3 stops25h 10mEthiopian Air
Wed 6/189:00 amFNA - ORD
4 stops43h 30mEthiopian Air
Deal found 4/30$2,340
This oojo deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:30 pmORD - FNA
2 stops50h 50mRoyal Air Maroc
Sat 1/35:20 amFNA - ORD
2 stops38h 03mRoyal Air Maroc
Deal found 4/29$4,363
This business-class.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:30 amORD - FNA
3 stops28h 00mKenya Airways
Sat 11/229:20 amFNA - ORD
3 stops33h 58mKenya Airways
Deal found 4/29$5,938
This AranGrant deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:45 pmORD - FNA
2 stops27h 35mBritish Airways
Sun 1/45:20 amFNA - ORD
2 stops40h 05mBritish Airways
Deal found 4/29$7,281
This Justfly.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:55 pmORD - FNA
1 stop18h 20mBrussels Airlines
Sat 11/227:35 pmFNA - ORD
2 stops22h 35mBrussels Airlines
Deal found 4/29$10,833

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Sierra Leone that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from Illinois to Sierra Leone that are best for you.

Fly from

Illinois

Fly to

Sierra Leone

Route

Depart

Return

Price

ChicagoFreetown

ORD - FNA

ORDFNA

Chicago O'Hare Intl

Sun 5/18

7:05 pm-5:25 pm

2 stops41h 20m

Freetown Lungi Intl

Wed 6/18

6:45 pm-12:50 pm

3 stops47h 05m

$1,180

ChicagoFreetown

ORD - FNA

ORDFNA

Chicago O'Hare Intl

Sun 5/18

7:05 pm-5:25 pm

2 stops41h 20m

Freetown Lungi Intl

Wed 6/18

6:45 pm-11:55 am

2 stops22h 10m

$1,669

ChicagoFreetown

ORD - FNA

ORDFNA

Chicago O'Hare Intl

Sun 5/18

9:05 pm-5:25 pm

3 stops39h 20m

Freetown Lungi Intl

Wed 6/18

6:45 pm-2:41 pm

3 stops24h 56m

$1,673

ChicagoFreetown

ORD - FNA

ORDFNA

Chicago O'Hare Intl

Sun 5/18

10:15 am-4:25 pm

3 stops25h 10m

Freetown Lungi Intl

Wed 6/18

9:00 am-11:30 pm

4 stops43h 30m

$2,340

ChicagoFreetown

ORD - FNA

ORDFNA

Chicago O'Hare Intl

Fri 6/13

2:20 pm-5:25 pm

2 stops46h 05m

$1,014

ChicagoFreetown

ORD - FNA

ORDFNA

Chicago O'Hare Intl

Fri 6/13

11:25 am-12:25 am

1 stop32h 00m

$1,599

ChicagoFreetown

ORD - FNA

ORDFNA

Chicago O'Hare Intl

Fri 6/13

7:20 pm-5:30 pm

3 stops41h 10m

$2,180

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Best time to book a flight from Illinois to Sierra Leone

Have a flexible travel schedule? Discover the best time to fly to Sierra Leone from Illinois 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 Illinois to Sierra Leone

Rainfall in Sierra Leone by month

Plan your trip to Sierra Leone by taking into account the average rainfall totals by month.

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.

Temperature in Sierra Leone by month

Plan your trip to Sierra Leone by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Sierra Leone

Get insights into the airlines that provide service to Sierra Leone. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sierra Leone. Reviews last updated May 1, 2025.
SWISS
7.5
Good
1,588 reviews

Food

7.0

Comfort

7.4

Crew

8.2

Entertainment

6.7

Overall

7.5

Boarding

7.6

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.
SWISS
7.5
Good
1,588 reviews
SWISS
7.5
Good
1,588 reviews

Food

7.0

Comfort

7.4

Crew

8.2

Entertainment

6.7

Overall

7.5

Boarding

7.6

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.
Turkish Airlines
7.3
Good
3,790 reviews
SWISS
7.5
Good
1,588 reviews

Food

7.0

Comfort

7.4

Crew

8.2

Entertainment

6.7

Overall

7.5

Boarding

7.6

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.
Ethiopian Air
7.2
Good
769 reviews
SWISS
7.5
Good
1,588 reviews

Food

7.0

Comfort

7.4

Crew

8.2

Entertainment

6.7

Overall

7.5

Boarding

7.6

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.
Air Canada
7.0
Good
9,245 reviews
SWISS
7.5
Good
1,588 reviews

Food

7.0

Comfort

7.4

Crew

8.2

Entertainment

6.7

Overall

7.5

Boarding

7.6

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.

Related info for your journey

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Sierra Leone?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Sierra Leone (average of $1,174). Flying from Illinois 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

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