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$790+ Cheap flights from Illinois to Monrovia (ROB)

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ROB
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Find flight deals from Illinois to Monrovia

Cheapest flights from Illinois to Monrovia
Explore the most affordable flight options available from Illinois to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:55 pmORD - ROB
1 stop18h 50mBrussels Airlines
Wed 11/1910:45 pmROB - ORD
1 stop19h 25mBrussels Airlines
Deal found 11/2$1,181
This Gurufare deal was found by Cheapflights users on 11/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:50 pmORD - ROB
2 stops41h 55mMultiple Airlines
Sun 12/710:45 pmROB - ORD
1 stop19h 25mMultiple Airlines
Deal found 11/1$1,239
This CheapOair deal was found by Cheapflights users on 11/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:50 pmORD - ROB
2 stops23h 55mMultiple Airlines
Wed 11/1910:45 pmROB - ORD
1 stop19h 25mMultiple Airlines
Deal found 11/2$1,244
This Gurufare deal was found by Cheapflights users on 11/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:50 pmORD - ROB
2 stops41h 55mSWISS
Sun 12/710:45 pmROB - ORD
2 stops23h 35mSWISS
Deal found 11/1$1,259
This Gurufare deal was found by Cheapflights users on 11/2. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:50 pmORD - ROB
3 stops44h 25mSWISS
Wed 11/1910:45 pmROB - ORD
2 stops23h 35mSWISS
Deal found 11/2$1,268
This FlightHub deal was found by Cheapflights users on 10/31. 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.
Tue 12/212:50 pmORD - ROB
3 stops26h 25mMultiple Airlines
Fri 12/128:05 pmROB - ORD
3 stops50h 15mMultiple Airlines
Deal found 10/31$1,283
This Ovago deal was found by Cheapflights users on 10/31. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/69:45 amORD - ROB
1 stop23h 00mEthiopian Air
Sun 12/2811:05 amROB - ORD
2 stops26h 35mEthiopian Air
Deal found 10/31$1,340
This Ovago deal was found by Cheapflights users on 11/1. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:09 pmORD - ROB
3 stops48h 26mBritish Airways
Tue 1/203:05 amROB - ORD
2 stops43h 55mBritish Airways
Deal found 11/1$1,349

Cheap flight deals from Illinois to Monrovia

Keep the following information in mind while searching for Illinois to Monrovia flight deals. Data was last updated November 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,022
(Gotogate)

One-way from

$790
(Gurufare)

Popular in

May

Cheapest in

October

Average price

$1,382
Provider with most accurate pricing for Chicago (CHI)-Monrovia Roberts Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Monrovia Roberts Intl flights.
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From Illinois to Monrovia Roberts Intl
Search Deals
One-way flight from Illinois to Monrovia Roberts Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($265 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($70 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Monrovia 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 November 2, 2025.
Use the filters below to find and compare flights from Illinois to Monrovia that are best for you.

Fly from

Illinois

Fly to

Monrovia

Route

Depart

Return

Price

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Tue 1/13

5:55 pm-9:15 pm

2 stops21h 20m

Monrovia Roberts Intl

Wed 1/28

10:45 pm-12:10 pm

1 stop19h 25m

$1,029

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Mon 1/12

5:55 pm-9:15 pm

2 stops21h 20m

Monrovia Roberts Intl

Tue 1/27

10:45 pm-12:10 pm

1 stop19h 25m

$1,029

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Tue 1/13

5:55 pm-9:15 pm

2 stops21h 20m

Monrovia Roberts Intl

Tue 1/27

10:45 pm-12:10 pm

1 stop19h 25m

$1,029

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Mon 1/12

5:55 pm-9:15 pm

2 stops21h 20m

Monrovia Roberts Intl

Wed 1/28

10:45 pm-12:10 pm

1 stop19h 25m

$1,029

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Tue 2/10

5:55 pm-9:15 pm

2 stops21h 20m

Monrovia Roberts Intl

Wed 3/4

10:45 pm-12:10 pm

1 stop19h 25m

$1,030

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Mon 2/9

5:55 pm-9:15 pm

2 stops21h 20m

Monrovia Roberts Intl

Wed 3/4

10:45 pm-12:10 pm

1 stop19h 25m

$1,030

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Fri 11/7

5:55 pm-9:15 pm

2 stops21h 20m

$790

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Fri 11/7

6:50 pm-9:15 pm

3 stops44h 25m

$900

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

Best time to book a flight from Illinois to Monrovia

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

What is the cheapest time of day to fly from IL to ROB?

Find hourly flight availability from Illinois to Monrovia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2025.

When flying from Illinois to Monrovia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 18% versus a flight at noon.

How much does it cost to fly round-trip from Illinois to Monrovia?

Related info for your journey

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

  • What airport do you fly into for flights to Monrovia from Illinois?

    Monrovia Roberts Intl (ROB) is the airport you will fly into if you book a flight from Illinois to Monrovia. It is only a 30.2 mi journey from Roberts Intl (ROB) to Monrovia’s city center.

  • How long is the flight from Illinois to Monrovia?

    United Airlines can get you from Illinois to Monrovia in just under 21h 20m. Your travel time can differ by up to . Illinois and Monrovia are separated by a distance of 5288 mi.

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

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

  • How can I find direct flights from Illinois to Monrovia?

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

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

    Yes. Cheapflights offers flight deals from Illinois to Monrovia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 3 airlines flying from Illinois to Monrovia

Discover the top 3 airlines that operate flights from Illinois to Monrovia. 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$996Average$1,496FlexibilityNo cancel feeOn-timeN/A
Ethiopian AirCheapest$1,155Average$1,409FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$1,170Average$2,549FlexibilityNo cancel feeOn-time69%

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