In terms of precipitation, rainfall in Mostar ranges from 2.0 - 8.3 inches per month. November is typically the wettest month, when rainfall can reach 8.3 in. July is typically the driest time to visit Mostar when rainfall is around 2.0 in.

If weather is an important factor for your trip to Mostar, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Mostar as you normally would.

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

Mostar (OMO), located 4.6 mi from the city center, is the airport you fly into when you book flights from Illinois to Mostar.

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

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

How can I find direct flights from Illinois to Mostar?

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

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

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

$976+ Flights from Illinois to Mostar

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Cheap flight deals from Illinois to Mostar

Cheapest flights from Illinois to Mostar
Explore the most affordable flight options available from Illinois to Mostar. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

Sun 3/2212:20 pm

ORD

OMO

2 stops20h 10m

Multiple Airlines

Sun 3/293:10 pm

OMO

ORD

2 stops38h 46m

Multiple Airlines

Deal found 1/21

$976

Thu 8/2010:35 am

ORD

OMO

2 stops20h 50m

Multiple Airlines

Wed 9/301:20 pm

OMO

ORD

2 stops35h 55m

Multiple Airlines

Deal found 1/20

$1,142

Best flights from Illinois to Mostar
Discover carefully curated flight deals from Illinois to Mostar that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 21, 2026.

Sun 3/2212:20 pm

ORD

OMO

2 stops20h 10m

Multiple Airlines

Sun 3/293:10 pm

OMO

ORD

2 stops38h 46m

Multiple Airlines

Deal found 1/21

$976

One-way flights from Illinois to Mostar
Search for one-way flight options from Illinois to Mostar. Find affordable one-way fares based on user searches. Data last updated January 21, 2026.

Mon 3/167:10 pm

ORD

OMO

2 stops13h 40m

Multiple Airlines

Deal found 1/19

$14,364

Find flight deals from Illinois to Mostar

Round-trip from	$976 (oojo)

From Illinois to Mostar

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Fly from

Fly to

Route

Depart

Return

Price

ChicagoMostar

ORD - OMO

ORDOMO

Chicago O'Hare Intl

Sun 3/22

12:20 pm-2:30 pm

2 stops20h 10m

Mostar

Sun 3/29

3:10 pm-10:56 pm

2 stops38h 46m

$976

ChicagoMostar

ORD - OMO

ORDOMO

Chicago O'Hare Intl

Mon 3/16

7:10 pm-2:50 pm

2 stops13h 40m

$14,364

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Best time to book a flight from Illinois to Mostar

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

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

Currently, October is the cheapest month in which you can book a flight from Illinois to Mostar (average of $511). Flying from Illinois to Mostar in June is currently the most expensive (average of $915). 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.

Related info for your journey

What airport do you fly into for flights to Mostar from Illinois?
Mostar (OMO), located 4.6 mi from the city center, is the airport you fly into when you book flights from Illinois to Mostar.
Can I find deals for flights from Illinois to Mostar that include hotel bookings?
Yes. In addition to deals on Illinois to Mostar flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Illinois to Mostar?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Mostar.
Can I find deals for business class flights from Illinois to Mostar?
Yes. Cheapflights offers flight deals from Illinois to Mostar 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 Mostar?
Currently, October is the cheapest month in which you can book a flight from Illinois to Mostar (average of $511). Flying from Illinois to Mostar in June is currently the most expensive (average of $915). 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.

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$976+ Cheap flights from Illinois to Mostar (OMO)

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 3/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Mostar with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Illinois to Mostar

Cheapest flights from Illinois to MostarExplore the most affordable flight options available from Illinois to Mostar. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

Explore the most affordable flight options available from Illinois to Mostar. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

Find flight deals from Illinois to Mostar

Keep the following information in mind while searching for Illinois to Mostar flight deals. Data was last updated January 21, 2026.

Round-trip from

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Use the filters below to find and compare flights from Illinois to Mostar that are best for you.

Best time to book a flight from Illinois to Mostar

Have a flexible travel schedule? Discover the best time to fly to Mostar from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Mostar

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

Related info for your journey

Find useful and relevant information for your journey from Illinois to Mostar. 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 Mostar from Illinois?

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

How can I find direct flights from Illinois to Mostar?

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

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

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Cheapest flights from Illinois to Mostar
Explore the most affordable flight options available from Illinois to Mostar. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.