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Monrovia

$1,079+ Cheap flights from Illinois to Monrovia (ROB)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ROB
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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Cheap 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 December 8, 2025.

This Ovago deal was found by Cheapflights users on 12/8. 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 12/308:45 pmORD - ROB
3 stops49h 50mBritish Airways
Tue 1/203:05 amROB - ORD
2 stops42h 20mBritish Airways
Deal found 12/8$1,325
This Ovago deal was found by Cheapflights users on 12/8. 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.
Mon 12/295:40 pmORD - ROB
2 stops28h 55mBritish Airways
Sun 1/185:35 amROB - ORD
2 stops39h 20mBritish Airways
Deal found 12/8$1,556
This Ovago deal was found by Cheapflights users on 12/7. 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 12/309:45 amORD - ROB
1 stop23h 00mEthiopian Air
Tue 1/2011:05 amROB - ORD
2 stops26h 35mEthiopian Air
Deal found 12/7$1,597
This Ovago deal was found by Cheapflights users on 12/7. 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.
Mon 12/296:50 pmORD - ROB
3 stops44h 25mSWISS
Sun 1/1810:45 pmROB - ORD
2 stops47h 35mSWISS
Deal found 12/7$1,617
This FlightHub deal was found by Cheapflights users on 12/6. 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 12/305:55 pmORD - ROB
2 stops21h 20mBrussels Airlines
Wed 1/2110:45 pmROB - ORD
2 stops44h 00mBrussels Airlines
Deal found 12/6$1,690

Find flight deals from Illinois to Monrovia

Keep the following information in mind while searching for Illinois to Monrovia flight deals. Data was last updated December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,079
(United Airlines)

Popular in

May

Cheapest in

October

Average price

$1,842
Provider with most accurate pricing for Chicago (CHI)-Monrovia Roberts Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Monrovia Roberts Intl flights.
Search Deals
From Illinois to Monrovia Roberts Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($268 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($70 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 8, 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 2/24

5:55 pm-9:15 pm

2 stops21h 20m

Monrovia Roberts Intl

Wed 4/1

9:10 pm-2:22 pm

2 stops46h 12m

$1,079

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Wed 3/4

6:25 pm-6:45 pm

2 stops42h 20m

Monrovia Roberts Intl

Wed 3/18

10:45 pm-11:44 pm

2 stops29h 59m

$1,133

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Thu 3/5

5:55 pm-6:45 pm

1 stop18h 50m

Monrovia Roberts Intl

Fri 4/3

9:10 pm-3:55 pm

2 stops47h 45m

$1,180

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Tue 1/13

5:55 pm-9:15 pm

2 stops21h 20m

Monrovia Roberts Intl

Fri 2/13

8:05 pm-4:20 pm

3 stops50h 15m

$1,247

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Tue 1/13

9:45 am-2:45 pm

1 stop23h 00m

Monrovia Roberts Intl

Fri 2/13

7:30 am-11:10 pm

3 stops21h 40m

$1,550

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Mon 12/29

5:40 pm-4:35 am

2 stops28h 55m

Monrovia Roberts Intl

Sun 1/18

5:35 am-2:55 pm

2 stops39h 20m

$1,556

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Tue 12/30

9:45 am-2:45 pm

1 stop23h 00m

Monrovia Roberts Intl

Tue 1/20

11:05 am-2:25 pm

3 stops33h 20m

$1,681

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Fri 12/12

8:36 am-4:35 am

2 stops37h 59m

$1,261

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Wed 12/17

7:40 pm-4:35 am

3 stops50h 55m

$1,282

ChicagoMonrovia

ORD - ROB

ORDROB

Chicago O'Hare Intl

Sun 12/14

7:40 pm-4:35 am

3 stops50h 55m

$1,296

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 15 results
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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 December 8, 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.

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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Alternative routes for Illinois to Monrovia

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$996Average$1,496FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,029Average$2,154FlexibilityNo cancel feeOn-time69%
Ethiopian AirCheapest$1,155Average$1,406FlexibilityNo cancel feeOn-time72%

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