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Cheap flights from Bucharest Otopeni Intl Airport to Illinois from $357

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Bucharest Otopeni Intl Airport to Illinois departing on 9/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Bucharest Otopeni Intl Airport to Illinois

Cheap round-trip flights

Scandinavian Airlines Logo
9:25 pm - 4:10 pmOTP-ORD
26h 45m1 stop
Scandinavian Airlines Logo
7:15 pm - 8:35 pmORD-OTP
17h 20m1 stop
$539Scandinavian Airlines
Find Deal
sáb., oct. 4 - sáb., oct. 18
Scandinavian Airlines Logo
9:25 pm - 4:10 pmOTP-ORD
26h 45m1 stop
Scandinavian Airlines Logo
7:15 pm - 8:35 pmORD-OTP
17h 20m1 stop
$541Scandinavian Airlines
Find Deal
sáb., oct. 4 - sáb., oct. 18
Scandinavian Airlines Logo
9:25 pm - 4:10 pmOTP-ORD
26h 45m1 stop
Scandinavian Airlines Logo
7:15 pm - 8:35 pmORD-OTP
17h 20m1 stop
$546Scandinavian Airlines
Find Deal
sáb., oct. 4 - sáb., oct. 11
British Airways Logo
4:10 pm - 1:50 pmOTP-ORD
29h 40m1 stop
British Airways Logo
4:03 pm - 11:00 pmORD-OTP
22h 57m2 stops
$634British Airways
Find Deal
dom., nov. 30 - lun., dic. 15
British Airways Logo
8:00 am - 3:25 pmOTP-ORD
15h 25m1 stop
British Airways Logo
9:45 pm - 11:45 pmORD-OTP
18h 00m1 stop
$635British Airways
Find Deal
vie., nov. 21 - sáb., nov. 29
LOT Logo
6:30 pm - 12:05 pmOTP-ORD
25h 35m1 stop
LOT Logo
9:40 pm - 1:50 amORD-OTP
20h 10m1 stop
$651LOT
Find Deal
sáb., sep. 20 - sáb., oct. 11
LOT Logo
5:35 am - 3:10 pmOTP-ORD
17h 35m1 stop
LOT Logo
9:40 pm - 5:45 pmORD-OTP
12h 05m1 stop
$654LOT
Find Deal
dom., oct. 12 - dom., oct. 19
KLM Logo
6:00 pm - 3:20 pmOTP-ORD
28h 20m1 stop
KLM Logo
4:25 pm - 1:00 pmORD-OTP
12h 35m1 stop
$666KLM
Find Deal
jue., oct. 30 - vie., nov. 21
Lufthansa Logo
2:50 pm - 1:55 pmOTP-STL
31h 05m1 stop
Lufthansa Logo
11:49 am - 12:20 pmSTL-OTP
16h 31m2 stops
$675Lufthansa
Find Deal
sáb., nov. 15 - lun., nov. 24
Lufthansa Logo
2:50 pm - 1:55 pmOTP-STL
31h 05m1 stop
Lufthansa Logo
6:43 pm - 6:35 pmSTL-OTP
15h 52m2 stops
$676Lufthansa
Find Deal
sáb., nov. 15 - dom., nov. 23

Scandinavian Airlines flights from Bucharest Otopeni Intl Airport to Illinois

Our best Scandinavian Airlines deals on Bucharest Otopeni Intl Airport to Illinois flight tickets
Scandinavian Airlines
Oct 4
OTP9:25 pmBucharest Otopeni Intl
26h 45m
1 stop
ORD4:10 pmChicago O'Hare Intl
Oct 18
ORD7:15 pmChicago O'Hare Intl
17h 20m
1 stop
OTP8:35 pmBucharest Otopeni Intl
$539
Find similar
Scandinavian Airlines
Oct 4
OTP9:25 pmBucharest Otopeni Intl
26h 45m
1 stop
ORD4:10 pmChicago O'Hare Intl
Oct 18
ORD7:15 pmChicago O'Hare Intl
17h 20m
1 stop
OTP8:35 pmBucharest Otopeni Intl
$541
Find similar
Scandinavian Airlines
Oct 4
OTP9:25 pmBucharest Otopeni Intl
26h 45m
1 stop
ORD4:10 pmChicago O'Hare Intl
Oct 11
ORD7:15 pmChicago O'Hare Intl
17h 20m
1 stop
OTP8:35 pmBucharest Otopeni Intl
$546
Find similar

Delta flights from Bucharest Otopeni Intl Airport to Illinois

Our best Delta deals on Bucharest Otopeni Intl Airport to Illinois flight tickets
Delta
Sep 5
OTP7:00 amBucharest Otopeni Intl
15h 10m
1 stop
ORD2:10 pmChicago O'Hare Intl
Sep 13
ORD10:40 amChicago O'Hare Intl
18h 00m
2 stops
OTP12:40 pmBucharest Otopeni Intl
$656
Find similar
Delta
Sep 5
OTP7:00 amBucharest Otopeni Intl
22h 56m
2 stops
ORD9:56 pmChicago O'Hare Intl
Sep 13
ORD10:40 amChicago O'Hare Intl
18h 00m
2 stops
OTP12:40 pmBucharest Otopeni Intl
$662
Find similar
Delta
Sep 12
OTP6:30 amBucharest Otopeni Intl
16h 30m
1 stop
ORD3:00 pmChicago O'Hare Intl
Nov 14
ORD10:35 amChicago O'Hare Intl
19h 15m
2 stops
OTP1:50 pmBucharest Otopeni Intl
$665
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Bucharest Otopeni Intl Airport 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 agosto 28, 2025.
Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

sáb. 10/4

9:25 pm-4:10 pm

1 stop26h 45m

Chicago O'Hare Intl

sáb. 10/18

7:15 pm-8:35 pm

1 stop17h 20m

$539

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

sáb. 10/4

9:25 pm-4:10 pm

1 stop26h 45m

Chicago O'Hare Intl

sáb. 10/18

7:15 pm-8:35 pm

1 stop17h 20m

$541

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

sáb. 10/4

9:25 pm-4:10 pm

1 stop26h 45m

Chicago O'Hare Intl

sáb. 10/11

7:15 pm-8:35 pm

1 stop17h 20m

$546

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

dom. 11/30

4:10 pm-1:50 pm

1 stop29h 40m

Chicago O'Hare Intl

lun. 12/15

4:03 pm-11:00 pm

2 stops22h 57m

$634

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

vie. 11/21

8:00 am-3:25 pm

1 stop15h 25m

Chicago O'Hare Intl

sáb. 11/29

9:45 pm-11:45 pm

1 stop18h 00m

$635

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

sáb. 9/20

6:30 pm-12:05 pm

1 stop25h 35m

Chicago O'Hare Intl

sáb. 10/11

9:40 pm-1:50 am

1 stop20h 10m

$651

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

dom. 10/12

5:35 am-3:10 pm

1 stop17h 35m

Chicago O'Hare Intl

dom. 10/19

9:40 pm-5:45 pm

1 stop12h 05m

$654

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

jue. 10/30

6:00 pm-3:20 pm

1 stop28h 20m

Chicago O'Hare Intl

vie. 11/21

4:25 pm-1:00 pm

1 stop12h 35m

$666

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

sáb. 11/15

2:50 pm-1:55 pm

1 stop31h 05m

Lambert-St Louis

lun. 11/24

11:49 am-12:20 pm

2 stops16h 31m

$675

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

sáb. 11/15

2:50 pm-1:55 pm

1 stop31h 05m

Lambert-St Louis

dom. 11/23

6:43 pm-6:35 pm

2 stops15h 52m

$676

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 Bucharest Otopeni Intl Airport 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 Bucharest Otopeni Intl Airport is in March. Flight prices, which tend to average around $575, 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 March, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $591.

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

The cheapest day to depart from Bucharest Otopeni Intl Airport to Illinois is on a Tuesday when prices can be found for as low as $676. Flights from Bucharest Otopeni Intl Airport 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 Bucharest Otopeni Intl Airport 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.

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

You are more likely to see cheaper flights to Illinois from Bucharest Otopeni Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $685 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Bucharest Otopeni Intl Airport for as low as $596 on momondo.

Cheap Bucharest Otopeni Intl Airport to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bucharest Otopeni Intl Airport to Illinois

Direct flights

None
There are no direct flights from Bucharest Otopeni Intl Airport to Illinois. There are no popular flight routes from Bucharest Otopeni Intl Airport to Illinois.
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  • When did momondo last update prices for flights from Bucharest Otopeni Intl Airport to Illinois?

    Prices for flights from Bucharest Otopeni Intl Airport to Illinois were last updated today.

  • How many operators does momondo search for flights from Bucharest Otopeni Intl Airport to Illinois?

  • How old do you have to be to fly from Bucharest Otopeni Intl Airport to Illinois?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Bucharest Otopeni Intl Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Bucharest Otopeni Intl Airport to Illinois

Compare and see reviews for airlines that fly from Bucharest Otopeni Intl Airport to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Turkish AirlinesPriceFrom $336Free CancellationRating
7.3
3,954 reviews
Search Turkish Airlines flights
American AirlinesPriceFrom $548Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
KLMPriceFrom $570Free CancellationRating
7.8
1,382 reviews
Search KLM flights
United AirlinesPriceFrom $571Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights
British AirwaysPriceFrom $581Free CancellationRating
6.7
7,316 reviews
Search British Airways flights
Air FrancePriceFrom $581Free CancellationRating
7.4
1,469 reviews
Search Air France flights
LOTPriceFrom $583Free CancellationRating
7.6
1,112 reviews
Search LOT flights
LufthansaPriceFrom $592Free CancellationRating
6.8
7,368 reviews
Search Lufthansa flights
DeltaPriceFrom $604Free CancellationRating
7.9
7,977 reviews
Search Delta flights

Why use momondo?

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

It is quick and easy to find Bucharest to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

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

momondo does allow users to show only those flights to Illinois from Bucharest which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Bucharest.

I’m not ready to book a flight from Bucharest to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Bucharest to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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