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Cheap flights from Romania to Illinois from $339

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Romania to Illinois departing on 1/16. 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 Romania to Illinois

Recent round-trip flight deals from Romania to Illinois

Enter your travel dates to find the best prices.
SWISS Logo
10:50 am - 4:20 pmCLJ-ORD
13h 30m1 stop
SWISS Logo
6:50 pm - 10:05 amORD-CLJ
31h 15m1 stop
$650SWISS
Find Deal
Thu, Dec 4 - Tue, Feb 10
Multiple Airlines Logo
10:50 am - 4:20 pmCLJ-ORD
13h 30m1 stop
Multiple Airlines Logo
9:50 pm - 12:55 amORD-CLJ
19h 05m1 stop
$653Multiple Airlines
Find Deal
Thu, Dec 4 - Wed, Feb 11
Lufthansa Logo
6:00 am - 6:25 pmSBZ-ORD
20h 25m1 stop
Lufthansa Logo
6:00 pm - 1:45 pmORD-SBZ
11h 45m1 stop
$657Lufthansa
Find Deal
Sat, Nov 22 - Sat, Feb 7
LOT Logo
2:35 pm - 8:00 pmOTP-ORD
13h 25m1 stop
LOT Logo
9:55 pm - 5:40 pmORD-OTP
11h 45m1 stop
$662LOT
Find Deal
Sat, Jan 17 - Sat, Feb 21
Lufthansa Logo
6:00 am - 6:25 pmCLJ-ORD
20h 25m1 stop
Lufthansa Logo
9:50 pm - 12:55 amORD-CLJ
19h 05m1 stop
$662Lufthansa
Find Deal
Sat, Nov 22 - Sun, Dec 7
United Airlines Logo
6:00 am - 9:17 pmSBZ-ORD
23h 17m2 stops
United Airlines Logo
2:18 pm - 1:45 pmORD-SBZ
15h 27m2 stops
$662United Airlines
Find Deal
Sat, Nov 22 - Sat, Feb 7
LOT Logo
8:20 am - 8:00 pmOTP-ORD
19h 40m1 stop
LOT Logo
9:55 pm - 5:40 pmORD-OTP
11h 45m1 stop
$664LOT
Find Deal
Fri, Jan 16 - Sat, Feb 21
United Airlines Logo
5:55 am - 11:10 amOTP-ORD
13h 15m1 stop
United Airlines Logo
6:15 pm - 11:50 pmORD-OTP
21h 35m2 stops
$665United Airlines
Find Deal
Fri, Nov 21 - Sun, Dec 7
Lufthansa Logo
6:00 am - 6:25 pmCLJ-ORD
20h 25m1 stop
Lufthansa Logo
9:50 pm - 12:55 amORD-CLJ
19h 05m1 stop
$666Lufthansa
Find Deal
Wed, Nov 26 - Mon, Dec 8
British Airways Logo
8:05 am - 6:45 pmOTP-ORD
18h 40m1 stop
British Airways Logo
9:15 pm - 12:30 amORD-OTP
19h 15m1 stop
$693British Airways
Find Deal
Sat, Jan 31 - Sat, May 23

Lufthansa flights from Romania to Illinois

Our best Lufthansa deals on Romania to Illinois flight tickets
Lufthansa
Nov 22
SBZ6:00 amSibiu
20h 25m
1 stop
ORD6:25 pmChicago O'Hare Intl
Feb 7
ORD6:00 pmChicago O'Hare Intl
11h 45m
1 stop
SBZ1:45 pmSibiu
$657
Find similar
Lufthansa
Nov 22
CLJ6:00 amCluj Napoca
20h 25m
1 stop
ORD6:25 pmChicago O'Hare Intl
Dec 7
ORD9:50 pmChicago O'Hare Intl
19h 05m
1 stop
CLJ12:55 amCluj Napoca
$662
Find similar
Lufthansa
Nov 26
CLJ6:00 amCluj Napoca
20h 25m
1 stop
ORD6:25 pmChicago O'Hare Intl
Dec 7
ORD9:50 pmChicago O'Hare Intl
19h 05m
1 stop
CLJ12:55 amCluj Napoca
$666
Find similar

United Airlines flights from Romania to Illinois

Our best United Airlines deals on Romania to Illinois flight tickets
United Airlines
Nov 22
SBZ6:00 amSibiu
23h 17m
2 stops
ORD9:17 pmChicago O'Hare Intl
Feb 7
ORD2:18 pmChicago O'Hare Intl
15h 27m
2 stops
SBZ1:45 pmSibiu
$662
Find similar
United Airlines
Nov 21
OTP5:55 amBucharest Otopeni Intl
13h 15m
1 stop
ORD11:10 amChicago O'Hare Intl
Dec 7
ORD6:15 pmChicago O'Hare Intl
21h 35m
2 stops
OTP11:50 pmBucharest Otopeni Intl
$665
Find similar
United Airlines
Nov 20
OTP2:45 pmBucharest Otopeni Intl
13h 20m
1 stop
ORD8:05 pmChicago O'Hare Intl
Dec 3
ORD2:24 pmChicago O'Hare Intl
15h 36m
2 stops
OTP2:00 pmBucharest Otopeni Intl
$666
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Romania 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 November 5, 2025.
Use the filters below to find and compare flights from Romania to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cluj NapocaChicago

CLJ - ORD

CLJORD

Cluj Napoca

Thu 12/4

10:50 am-4:20 pm

1 stop13h 30m

Chicago O'Hare Intl

Tue 2/10

6:50 pm-10:05 am

1 stop31h 15m

$650

Cluj NapocaChicago

CLJ - ORD

CLJORD

Cluj Napoca

Thu 12/4

10:50 am-4:20 pm

1 stop13h 30m

Chicago O'Hare Intl

Wed 2/11

9:50 pm-12:55 am

1 stop19h 05m

$653

SibiuChicago

SBZ - ORD

SBZORD

Sibiu

Sat 11/22

6:00 am-6:25 pm

1 stop20h 25m

Chicago O'Hare Intl

Sat 2/7

6:00 pm-1:45 pm

1 stop11h 45m

$657

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 1/17

2:35 pm-8:00 pm

1 stop13h 25m

Chicago O'Hare Intl

Sat 2/21

9:55 pm-5:40 pm

1 stop11h 45m

$662

Cluj NapocaChicago

CLJ - ORD

CLJORD

Cluj Napoca

Sat 11/22

6:00 am-6:25 pm

1 stop20h 25m

Chicago O'Hare Intl

Sun 12/7

9:50 pm-12:55 am

1 stop19h 05m

$662

SibiuChicago

SBZ - ORD

SBZORD

Sibiu

Sat 11/22

6:00 am-9:17 pm

2 stops23h 17m

Chicago O'Hare Intl

Sat 2/7

2:18 pm-1:45 pm

2 stops15h 27m

$662

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Fri 1/16

8:20 am-8:00 pm

1 stop19h 40m

Chicago O'Hare Intl

Sat 2/21

9:55 pm-5:40 pm

1 stop11h 45m

$664

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Fri 11/21

5:55 am-11:10 am

1 stop13h 15m

Chicago O'Hare Intl

Sun 12/7

6:15 pm-11:50 pm

2 stops21h 35m

$665

Cluj NapocaChicago

CLJ - ORD

CLJORD

Cluj Napoca

Wed 11/26

6:00 am-6:25 pm

1 stop20h 25m

Chicago O'Hare Intl

Mon 12/8

9:50 pm-12:55 am

1 stop19h 05m

$666

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 1/31

8:05 am-6:45 pm

1 stop18h 40m

Chicago O'Hare Intl

Sat 5/23

9:15 pm-12:30 am

1 stop19h 15m

$693

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Romania 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 month to fly to Illinois?

The cheapest month to fly to Illinois from Romania is in February. Flight prices, which tend to average around $605, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $618.

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

The cheapest day to depart from Romania to Illinois is on a Tuesday when prices can be found for as low as $676. Flights from Romania to Illinois on a Saturday will generally be more expensive and average around $767. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Romania to Illinois during this time can be as low as $511. Flights in the evening are often more expensive with an average ticket price of $802.

What is the cheapest Romania to Illinois flight route?

Fly from Bucharest Otopeni Intl to Chicago O'Hare Intl for the best Romania - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Romania when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $700 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Romania for as low as $634 on momondo.

What cabin class options are available on Romania to Illinois flights?

There is only 1 cabin class available to choose from on Romania to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Romania to Illinois flights?

No. A direct flight is the cheapest option for a flight between Romania to Illinois.

Cheap Romania to Illinois flight deals and tips

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

Direct flights

None
There are no direct flights from Romania to Illinois. There are no popular flight routes from Romania to Illinois.
Search flight deals

  • When did momondo last update prices for flights from Romania to Illinois?

    Prices for flights from Romania to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Romania to Illinois?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Romania 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.

Best airlines flying from Romania to Illinois

Compare and see reviews for airlines that fly from Romania to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Turkish AirlinesPriceFrom $493Free CancellationRating
7.3
4,035 reviews
Search Turkish Airlines flights
American AirlinesPriceFrom $548Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
LufthansaPriceFrom $554Free CancellationRating
6.8
7,553 reviews
Search Lufthansa flights
SWISSPriceFrom $565Free CancellationRating
7.5
1,777 reviews
Search SWISS flights
KLMPriceFrom $570Free CancellationRating
7.7
1,405 reviews
Search KLM flights
United AirlinesPriceFrom $571Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
LOTPriceFrom $573Free CancellationRating
7.6
1,133 reviews
Search LOT flights
British AirwaysPriceFrom $581Free CancellationRating
6.7
7,496 reviews
Search British Airways flights
Air FrancePriceFrom $581Free CancellationRating
7.4
1,482 reviews
Search Air France flights
DeltaPriceFrom $623Free CancellationRating
7.9
8,004 reviews
Search Delta flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Romania.

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

All flight searches from Romania to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Romania to Illinois?

Once you have performed a search for Romania to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Romania 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 Romania and alert you when they change.

An easier way to manage your Illinois trip

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