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$368+ Cheap flights from Illinois to Sri Lanka

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CMB
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Illinois to Sri Lanka

Keep the following information in mind while searching for Illinois to Sri Lanka flight deals. Data was last updated October 30, 2025.

Round-trip from

$993
(oojo)

One-way from

$368
(FlightHub)

Popular in

December

Cheapest in

October

Average price

$938
From Illinois to Sri Lanka
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One-way flight from Illinois to Sri Lanka
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Highest demand for flights based on searches. 15% potential increase in price ($231 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Illinois to Sri Lanka

Cheapest flights from Illinois to Sri Lanka
Explore the most affordable flight options available from Illinois to Sri Lanka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/162:50 pmORD - CMB
2 stops24h 25mAmerican Airlines
Thu 12/114:15 amCMB - ORD
1 stop21h 45mAmerican Airlines
Deal found 10/28$1,016
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/282:50 pmORD - CMB
2 stops24h 25mAmerican Airlines
Thu 12/43:25 amCMB - ORD
1 stop22h 35mAmerican Airlines
Deal found 10/28$1,056
This oojo deal was found by Cheapflights users on 10/28. 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.
Fri 11/281:10 pmORD - CMB
1 stop38h 35mEtihad Airways
Fri 12/59:50 amCMB - ORD
1 stop33h 15mEtihad Airways
Deal found 10/28$1,065
This FlightHub deal was found by Cheapflights users on 10/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:30 pmORD - CMB
1 stop30h 20mAir India
Sun 12/145:05 pmCMB - ORD
2 stops29h 55mAir India
Deal found 10/29$1,089
This oojo deal was found by Cheapflights users on 10/29. 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.
Fri 11/71:30 pmORD - CMB
1 stop30h 20mAir India
Sun 11/238:20 amCMB - ORD
2 stops38h 40mAir India
Deal found 10/29$1,097
This Etihad Airways deal was found by Cheapflights users on 10/28. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:10 pmORD - CMB
1 stop26h 10mEtihad Airways
Sun 12/149:35 pmCMB - ORD
1 stop21h 30mEtihad Airways
Deal found 10/28$1,102
This FlightHub deal was found by Cheapflights users on 10/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/84:06 pmORD - CMB
2 stops36h 54mQatar Airways
Mon 11/177:30 pmCMB - ORD
1 stop30h 30mQatar Airways
Deal found 10/29$1,126
This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:50 pmORD - CMB
2 stops22h 40mMultiple Airlines
Thu 11/139:20 amCMB - ORD
3 stops33h 45mMultiple Airlines
Deal found 10/27$1,135
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1611:30 pmORD - CMB
2 stops28h 55mMultiple Airlines
Fri 12/1210:15 pmCMB - ORD
2 stops31h 40mMultiple Airlines
Deal found 10/28$1,139
This Qatar Airways deal was found by Cheapflights users on 10/28. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:47 amBMI - CMB
2 stops32h 38mQatar Airways
Tue 11/44:15 amCMB - BMI
2 stops24h 37mQatar Airways
Deal found 10/28$1,863

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Sri Lanka 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 October 30, 2025.
Use the filters below to find and compare flights from Illinois to Sri Lanka that are best for you.

Fly from

Illinois

Fly to

Sri Lanka

Route

Depart

Return

Price

ChicagoColombo

ORD - CMB

ORDCMB

Chicago O'Hare Intl

Wed 1/14

8:00 am-1:55 am

2 stops30h 25m

Colombo Bandaranaike Intl

Thu 2/12

4:15 am-2:30 pm

1 stop21h 45m

$1,077

ChicagoColombo

ORD - CMB

ORDCMB

Chicago O'Hare Intl

Tue 1/13

8:00 am-2:45 am

2 stops31h 15m

Colombo Bandaranaike Intl

Fri 2/6

4:15 am-2:30 pm

1 stop21h 45m

$1,117

ChicagoColombo

ORD - CMB

ORDCMB

Chicago O'Hare Intl

Fri 1/9

8:00 am-2:45 am

2 stops31h 15m

Colombo Bandaranaike Intl

Wed 2/11

3:25 am-2:30 pm

1 stop22h 35m

$1,117

ChicagoColombo

ORD - CMB

ORDCMB

Chicago O'Hare Intl

Fri 1/9

8:00 am-1:55 am

2 stops30h 25m

Colombo Bandaranaike Intl

Mon 2/9

11:15 am-2:30 pm

1 stop38h 45m

$1,119

ChicagoColombo

ORD - CMB

ORDCMB

Chicago O'Hare Intl

Wed 1/14

8:00 am-2:45 am

2 stops31h 15m

Colombo Bandaranaike Intl

Sat 3/28

10:15 am-3:05 pm

1 stop39h 20m

$1,119

ChicagoColombo

ORD - CMB

ORDCMB

Chicago O'Hare Intl

Tue 3/17

8:05 pm-9:45 am

1 stop27h 10m

Colombo Bandaranaike Intl

Wed 4/8

10:30 am-5:43 pm

2 stops41h 43m

$1,155

ChicagoColombo

ORD - CMB

ORDCMB

Chicago O'Hare Intl

Sun 1/18

1:10 pm-8:20 pm

1 stop19h 40m

Colombo Bandaranaike Intl

Wed 1/21

9:35 pm-7:35 am

1 stop21h 30m

$1,157

ChicagoColombo

ORD - CMB

ORDCMB

Chicago O'Hare Intl

Tue 3/17

6:45 pm-9:45 am

2 stops28h 30m

Colombo Bandaranaike Intl

Mon 4/6

3:35 am-3:05 pm

1 stop22h 00m

$1,157

ChicagoColombo

ORD - CMB

ORDCMB

Chicago O'Hare Intl

Wed 3/18

7:45 am-9:45 am

2 stops39h 30m

Colombo Bandaranaike Intl

Tue 4/7

4:35 am-3:05 pm

1 stop21h 00m

$1,158

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Tue 1/13

7:04 am-11:30 pm

2 stops28h 56m

Colombo Bandaranaike Intl

Wed 2/4

12:45 am-9:15 pm

2 stops32h 00m

$1,167

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 22 results
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Best time to book a flight from Illinois to Sri Lanka

Have a flexible travel schedule? Discover the best time to fly to Sri Lanka 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 Sri Lanka

What is the cheapest month to book a flight from Illinois to Sri Lanka?

Currently, September is the cheapest month in which you can book a flight from Illinois to Sri Lanka (average of $623). Flying from Illinois to Sri Lanka in June is currently the most expensive (average of $1,244). 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 IL to LK?

Find hourly flight availability from Illinois to Sri Lanka. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

When flying from Illinois to Sri Lanka, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 23% versus a flight in the morning.

What is the cheapest day to fly from Illinois to Sri Lanka?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Sri Lanka. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Sri Lanka flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

  • How long is the flight from Illinois to Sri Lanka?

    For as low as $1,077, Qatar Airways can have you in Sri Lanka from Illinois in 30h 25m. The distance from Illinois to Sri Lanka is about 8947 mi.

  • Can I find deals for flights from Illinois to Sri Lanka that include hotel bookings?

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

  • How can I find direct flights from Illinois to Sri Lanka?

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

  • Can I find deals for business class flights from Illinois to Sri Lanka?

    Yes. Cheapflights offers flight deals from Illinois to Sri Lanka 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 Sri Lanka?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Sri Lanka (average of $623). Flying from Illinois to Sri Lanka in June is currently the most expensive (average of $1,244). 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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Alternative routes for Illinois to Sri Lanka

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Top 10 airlines flying from Illinois to Sri Lanka

Discover the top 10 airlines that operate flights from Illinois to Sri Lanka. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$623Average$782FlexibilityNo cancel feeOn-time72%
Air IndiaCheapest$692Average$923FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$816Average$928FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$953Average$1,431FlexibilityNo cancel feeOn-time68%
Etihad AirwaysCheapest$990Average$1,465FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$1,013Average$1,580FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$1,025Average$1,080FlexibilityNo cancel feeOn-time71%
SriLankan AirlinesCheapest$1,124Average$1,360FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,183Average$1,758FlexibilityNo cancel feeOn-time75%
IndiGoCheapest$1,205Average$1,401FlexibilityNo cancel feeOn-time80%

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