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Cheap flights from Illinois to Bucharest from $273

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Bucharest departing on 5/18. 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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0 bags

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Find the cheapest flights from Illinois to Bucharest

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:31 pm - 11:10 pm
ORD
-
OTP
20h 39m
2 stops
Multiple Airlines Logo
9:35 am - 12:22 am
OTP
-
ORD
22h 47m
1 stop
$499Multiple Airlines
Wed, Mar 25 - Wed, Apr 8
Turkish Airlines Logo
11:50 am - 8:50 am
ORD
-
OTP
13h 00m
1 stop
Turkish Airlines Logo
3:30 pm - 11:05 am
OTP
-
ORD
26h 35m
1 stop
$518Turkish Airlines
Mon, Mar 2 - Mon, Mar 16
Lufthansa Logo
10:50 pm - 6:35 pm
ORD
-
OTP
12h 45m
1 stop
Lufthansa Logo
2:50 pm - 9:05 pm
OTP
-
ORD
13h 15m
1 stop
$522Lufthansa
Mon, Mar 16 - Mon, Mar 23
Lufthansa Logo
10:50 pm - 6:35 pm
ORD
-
OTP
12h 45m
1 stop
Lufthansa Logo
1:50 pm - 7:55 pm
OTP
-
ORD
14h 05m
1 stop
$523Lufthansa
Tue, Mar 24 - Tue, Apr 7
Lufthansa Logo
9:50 pm - 6:35 pm
ORD
-
OTP
12h 45m
1 stop
Lufthansa Logo
2:50 pm - 8:05 pm
OTP
-
ORD
13h 15m
1 stop
$524Lufthansa
Wed, Feb 18 - Fri, Feb 27
Turkish Airlines Logo
8:20 pm - 8:30 pm
ORD
-
OTP
16h 10m
1 stop
Turkish Airlines Logo
10:10 am - 6:25 pm
OTP
-
ORD
16h 15m
1 stop
$527Turkish Airlines
Fri, Feb 20 - Fri, Mar 6
British Airways Logo
8:53 am - 12:50 am
STL
-
OTP
31h 57m
2 stops
British Airways Logo
6:10 pm - 7:30 pm
OTP
-
STL
33h 20m
1 stop
$536British Airways
Sun, Apr 19 - Tue, Apr 28
British Airways Logo
8:53 am - 12:50 am
STL
-
OTP
31h 57m
2 stops
British Airways Logo
6:10 pm - 10:14 pm
OTP
-
STL
36h 04m
2 stops
$539British Airways
Sun, Apr 19 - Tue, Apr 28
Delta Logo
6:40 pm - 10:50 pm
MDW
-
OTP
20h 10m
2 stops
Delta Logo
6:00 am - 5:37 pm
OTP
-
MDW
19h 37m
2 stops
$581Delta
Mon, Feb 16 - Thu, Feb 26
Delta Logo
1:10 pm - 1:00 pm
MDW
-
OTP
16h 50m
2 stops
Delta Logo
6:00 am - 10:31 pm
OTP
-
MDW
23h 31m
2 stops
$622Delta
Tue, Mar 17 - Tue, Mar 24

British Airways flights from Illinois to Bucharest Otopeni Intl Airport

Our best British Airways deals on Illinois to Bucharest Otopeni Intl Airport flight tickets
British Airways
Apr 19
STL8:53 amLambert-St Louis
31h 57m
2 stops
OTP12:50 amBucharest Otopeni Intl
Apr 28
OTP6:10 pmBucharest Otopeni Intl
33h 20m
1 stop
STL7:30 pmLambert-St Louis
$536
British Airways
Apr 19
STL8:53 amLambert-St Louis
31h 57m
2 stops
OTP12:50 amBucharest Otopeni Intl
Apr 28
OTP6:10 pmBucharest Otopeni Intl
36h 04m
2 stops
STL10:14 pmLambert-St Louis
$539
British Airways
May 4
ORD4:08 pmChicago O'Hare Intl
25h 12m
2 stops
OTP1:20 amBucharest Otopeni Intl
May 18
OTP3:40 pmBucharest Otopeni Intl
34h 35m
1 stop
ORD6:15 pmChicago O'Hare Intl
$563

Lufthansa flights from Illinois to Bucharest Otopeni Intl Airport

Our best Lufthansa deals on Illinois to Bucharest Otopeni Intl Airport flight tickets
Lufthansa
Mar 16
ORD10:50 pmChicago O'Hare Intl
12h 45m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Mar 23
OTP2:50 pmBucharest Otopeni Intl
13h 15m
1 stop
ORD9:05 pmChicago O'Hare Intl
$522
Lufthansa
Mar 24
ORD10:50 pmChicago O'Hare Intl
12h 45m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Apr 7
OTP1:50 pmBucharest Otopeni Intl
14h 05m
1 stop
ORD7:55 pmChicago O'Hare Intl
$523
Lufthansa
Feb 18
ORD9:50 pmChicago O'Hare Intl
12h 45m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Feb 27
OTP2:50 pmBucharest Otopeni Intl
13h 15m
1 stop
ORD8:05 pmChicago O'Hare Intl
$524

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Bucharest Otopeni Intl Airport 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 January 31, 2026.
Use the filters below to find and compare flights from Illinois to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 3/25

7:31 pm-11:10 pm

2 stops20h 39m

Bucharest Otopeni Intl

Wed 4/8

9:35 am-12:22 am

1 stop22h 47m

$499

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 3/2

11:50 am-8:50 am

1 stop13h 00m

Bucharest Otopeni Intl

Mon 3/16

3:30 pm-11:05 am

1 stop26h 35m

$518

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 3/16

10:50 pm-6:35 pm

1 stop12h 45m

Bucharest Otopeni Intl

Mon 3/23

2:50 pm-9:05 pm

1 stop13h 15m

$522

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 3/24

10:50 pm-6:35 pm

1 stop12h 45m

Bucharest Otopeni Intl

Tue 4/7

1:50 pm-7:55 pm

1 stop14h 05m

$523

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 2/18

9:50 pm-6:35 pm

1 stop12h 45m

Bucharest Otopeni Intl

Fri 2/27

2:50 pm-8:05 pm

1 stop13h 15m

$524

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 2/20

8:20 pm-8:30 pm

1 stop16h 10m

Bucharest Otopeni Intl

Fri 3/6

10:10 am-6:25 pm

1 stop16h 15m

$527

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 4/19

8:53 am-12:50 am

2 stops31h 57m

Bucharest Otopeni Intl

Tue 4/28

6:10 pm-7:30 pm

1 stop33h 20m

$536

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 4/19

8:53 am-12:50 am

2 stops31h 57m

Bucharest Otopeni Intl

Tue 4/28

6:10 pm-10:14 pm

2 stops36h 04m

$539

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Mon 2/16

6:40 pm-10:50 pm

2 stops20h 10m

Bucharest Otopeni Intl

Thu 2/26

6:00 am-5:37 pm

2 stops19h 37m

$581

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Tue 3/17

1:10 pm-1:00 pm

2 stops16h 50m

Bucharest Otopeni Intl

Tue 3/24

6:00 am-10:31 pm

2 stops23h 31m

$622

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 Bucharest from

How to get the cheapest flight ticket from Illinois to Bucharest Otopeni Intl Airport

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 Bucharest Otopeni Intl Airport?

If you aren’t able to travel during the month of January, then book flights to Bucharest Otopeni Intl Airport from Illinois during November instead. Flights to Bucharest Otopeni Intl Airport in November, while not as cheap as those in January, still average around $560.

What is the cheapest day to depart on your flight to Bucharest Otopeni Intl Airport?

Our data shows that Monday is the least expensive day to fly to Bucharest Otopeni Intl Airport. Tickets to fly out on this day can be as low as $829. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Bucharest Otopeni Intl Airport for around $952.

What is the cheapest Illinois to Bucharest Otopeni Intl flight route?

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

How far in advance should I book a flight to Bucharest Otopeni Intl Airport?

You are more likely to see cheaper flights to Bucharest Otopeni Intl Airport from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Bucharest Otopeni Intl Airport for around $727 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bucharest Otopeni Intl Airport from Illinois for as low as $673 on momondo.

What cabin class options are available on Illinois to Bucharest Otopeni Intl flights?

There are 2 cabin classes available to choose from on Illinois to Bucharest Otopeni Intl 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 Illinois to Bucharest Otopeni Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Illinois to Bucharest Otopeni Intl Airport.

Cheap Illinois to Bucharest Otopeni Intl Airport flight deals and tips

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

Best Price Found

$419

Fastest flight time

9h 50m

Direct flights

Mon and Fri
The best one-way flight to Bucharest Otopeni Intl Airport from Illinois in the past 72 hours is $419. The best round-trip flight deal from Illinois to Bucharest Otopeni Intl Airport found on momondo in the last 72 hours is $844.
The fastest flight from Illinois to Bucharest Otopeni Intl Airport takes 9h 50m
Direct flights go from Illinois to Bucharest Otopeni Intl Airport on Monday and Friday. The only airline offering direct flights is HiSky.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Bucharest Otopeni Intl Airport?

    Prices for flights from Illinois to Bucharest Otopeni Intl Airport refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Bucharest Otopeni Intl Airport.

  • What documentation or ID do you need to fly to Bucharest Otopeni Intl Airport?

    The travel and health documents required for your trip to Bucharest Otopeni Intl Airport 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 Bucharest Otopeni Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Illinois to Bucharest Otopeni Intl Airport?

Best airlines flying from Illinois to Bucharest Otopeni Intl Airport

Compare and see reviews for airlines that fly from Illinois to Bucharest Otopeni Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $326Free CancellationRating
7.3
1,676 reviews
Search Scandinavian Airlines flights
Turkish AirlinesPriceFrom $503Free CancellationRating
7.3
4,212 reviews
Search Turkish Airlines flights
Austrian AirlinesPriceFrom $517Free CancellationRating
7.5
896 reviews
Search Austrian Airlines flights
KLMPriceFrom $541Free CancellationRating
7.7
1,444 reviews
Search KLM flights
British AirwaysPriceFrom $553Free CancellationRating
6.7
7,706 reviews
Search British Airways flights
LufthansaPriceFrom $566Free CancellationRating
6.8
7,758 reviews
Search Lufthansa flights
Air FrancePriceFrom $569Free CancellationRating
7.4
1,528 reviews
Search Air France flights
DeltaPriceFrom $575Free CancellationRating
7.9
8,129 reviews
Search Delta flights
LOTPriceFrom $576Free CancellationRating
7.5
1,175 reviews
Search LOT flights
United AirlinesPriceFrom $578Free CancellationRating
7.4
9,218 reviews
Search United Airlines flights

Traveling to a place near Bucharest?

Book flights to Bucharest if you plan to visit one of these locations
Otopeni

Why use momondo?

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

It is quick and easy to find Illinois to Bucharest 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 Bucharest that suits you.

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

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

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

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 Bucharest from Illinois.

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

If you are simply researching potential flights to Bucharest, momondo offers a useful price alert feature which will track prices for flights to Bucharest from Illinois and alert you when they change.

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