Cheap flights from Sierra Leone to Illinois from $1,262

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sierra Leone to Illinois departing on 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Sierra Leone to Illinois

Recent round-trip flight deals from Sierra Leone to Illinois

Enter your travel dates to find the best prices.
Ethiopian Air Logo
9:00 am - 8:15 am
FNA
-
ORD
28h 15m3 stops
Ethiopian Air Logo
2:27 pm - 4:45 pm
ORD
-
FNA
45h 18m3 stops
$2,427Ethiopian Air
Thu, Apr 23 - Mon, Apr 27
Ethiopian Air Logo
9:00 am - 8:15 am
FNA
-
ORD
28h 15m3 stops
Ethiopian Air Logo
10:15 am - 4:25 pm
ORD
-
FNA
25h 10m2 stops
$2,532Ethiopian Air
Thu, Apr 23 - Mon, Apr 27
Ethiopian Air Logo
9:00 am - 8:15 am
FNA
-
ORD
28h 15m3 stops
Ethiopian Air Logo
2:27 pm - 4:45 pm
ORD
-
FNA
45h 18m4 stops
$2,563Ethiopian Air
Thu, Apr 23 - Mon, Apr 27
Ethiopian Air Logo
9:00 am - 2:22 pm
FNA
-
ORD
34h 22m4 stops
Ethiopian Air Logo
2:27 pm - 4:45 pm
ORD
-
FNA
45h 18m4 stops
$3,003Ethiopian Air
Thu, Apr 23 - Mon, Apr 27

Ethiopian Air flights from Sierra Leone to Illinois

Our best Ethiopian Air deals on Sierra Leone to Illinois flight tickets
Ethiopian Air
Apr 23
FNA9:00 amFreetown Lungi Intl
28h 15m
3 stops
ORD8:15 amChicago O'Hare Intl
Apr 27
ORD2:27 pmChicago O'Hare Intl
45h 18m
3 stops
FNA4:45 pmFreetown Lungi Intl
Ethiopian Air
Apr 23
FNA9:00 amFreetown Lungi Intl
28h 15m
3 stops
ORD8:15 amChicago O'Hare Intl
Apr 27
ORD10:15 amChicago O'Hare Intl
25h 10m
2 stops
FNA4:25 pmFreetown Lungi Intl
Ethiopian Air
Apr 23
FNA9:00 amFreetown Lungi Intl
28h 15m
3 stops
ORD8:15 amChicago O'Hare Intl
Apr 27
ORD2:27 pmChicago O'Hare Intl
45h 18m
4 stops
FNA4:45 pmFreetown Lungi Intl

Brussels Airlines flights from Sierra Leone to Illinois

Our best Brussels Airlines deals on Sierra Leone to Illinois flight tickets
Brussels Airlines
Dec 23
FNA8:10 pmFreetown Lungi Intl
22h 00m
2 stops
ORD12:10 pmChicago O'Hare Intl
Jan 24
ORD5:55 pmChicago O'Hare Intl
18h 45m
1 stop
FNA6:40 pmFreetown Lungi Intl
Brussels Airlines
Dec 23
FNA8:10 pmFreetown Lungi Intl
22h 00m
2 stops
ORD12:10 pmChicago O'Hare Intl
Jan 24
ORD9:02 amChicago O'Hare Intl
27h 38m
2 stops
FNA6:40 pmFreetown Lungi Intl
Brussels Airlines
Dec 23
FNA8:10 pmFreetown Lungi Intl
33h 34m
3 stops
ORD11:44 pmChicago O'Hare Intl
Jan 24
ORD1:00 pmChicago O'Hare Intl
23h 40m
2 stops
FNA6:40 pmFreetown Lungi Intl

momondo Fare Finder

 
Customize your flight search to find flights from Sierra Leone to Illinois 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Sierra Leone to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

FreetownChicago

FNA - ORD

FNAORD

Freetown Lungi Intl

Thu 4/23

9:00 am-8:15 am

3 stops28h 15m

Chicago O'Hare Intl

Mon 4/27

2:27 pm-4:45 pm

3 stops45h 18m

$2,427

FreetownChicago

FNA - ORD

FNAORD

Freetown Lungi Intl

Thu 4/23

9:00 am-8:15 am

3 stops28h 15m

Chicago O'Hare Intl

Mon 4/27

10:15 am-4:25 pm

2 stops25h 10m

$2,532

FreetownChicago

FNA - ORD

FNAORD

Freetown Lungi Intl

Thu 4/23

9:00 am-8:15 am

3 stops28h 15m

Chicago O'Hare Intl

Mon 4/27

2:27 pm-4:45 pm

4 stops45h 18m

$2,563

FreetownChicago

FNA - ORD

FNAORD

Freetown Lungi Intl

Thu 4/23

9:00 am-2:22 pm

4 stops34h 22m

Chicago O'Hare Intl

Mon 4/27

2:27 pm-4:45 pm

4 stops45h 18m

$3,003

FreetownChicago

FNA - ORD

FNAORD

Freetown Lungi Intl

Thu 1/8

5:20 am-2:57 pm

2 stops39h 37m

$1,262

FreetownChicago

FNA - ORD

FNAORD

Freetown Lungi Intl

Thu 1/8

5:20 am-11:35 am

3 stops36h 15m

$1,351

FreetownChicago

FNA - ORD

FNAORD

Freetown Lungi Intl

Tue 1/6

5:20 am-2:57 pm

2 stops39h 37m

$1,477

FreetownChicago

FNA - ORD

FNAORD

Freetown Lungi Intl

Fri 1/9

5:20 am-2:57 pm

2 stops39h 37m

$1,490

FreetownChicago

FNA - ORD

FNAORD

Freetown Lungi Intl

Fri 1/9

5:05 pm-2:45 pm

3 stops51h 40m

$1,513

FreetownChicago

FNA - ORD

FNAORD

Freetown Lungi Intl

Wed 1/7

5:20 am-8:30 pm

3 stops45h 10m

$1,660

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Sierra Leone to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Sierra Leone to Illinois is on a Sunday when prices can be found for as low as $1,493. Flights from Sierra Leone to Illinois on a Tuesday will generally be more expensive and average around $2,142. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Cheap Sierra Leone to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sierra Leone to Illinois

Fastest flight time

28h 15m

Direct flights

None
The fastest flight from Sierra Leone to Illinois takes 28h 15m
There are no direct flights from Sierra Leone to Illinois. There are no popular flight routes from Sierra Leone to Illinois.
  • When did momondo last update prices for flights from Sierra Leone to Illinois?

    Prices for flights from Sierra Leone to Illinois were last updated today.

  • How old do you have to be to fly from Sierra Leone to Illinois?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sierra Leone to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Sierra Leone to Illinois?

It is quick and easy to find Sierra Leone to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from Sierra Leone to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Sierra Leone which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Sierra Leone to Illinois?

Once all potential Sierra Leone to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Sierra Leone to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Sierra Leone and alert you when they change.

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1 adult
Sat 1/17
Sat 1/24

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