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Cheap flights from Chicago O'Hare Intl Airport to Bucharest from $344

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Bucharest departing on 3/30. 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 Chicago O'Hare Intl Airport to Bucharest

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
9:50 pm - 6:35 pmORD-OTP
12h 45m1 stop
Lufthansa Logo
5:55 am - 11:10 amOTP-ORD
13h 15m1 stop
$520Lufthansa
Find Deal
Mon, Dec 8 - Mon, Dec 15
Lufthansa Logo
9:50 pm - 6:35 pmORD-OTP
12h 45m1 stop
Lufthansa Logo
5:55 am - 1:10 pmOTP-ORD
15h 15m1 stop
$521Lufthansa
Find Deal
Sun, Jan 18 - Sun, Feb 1
Lufthansa Logo
9:50 pm - 1:05 amORD-OTP
19h 15m1 stop
Lufthansa Logo
5:55 am - 11:10 amOTP-ORD
13h 15m1 stop
$523Lufthansa
Find Deal
Tue, Jan 13 - Tue, Jan 27
Turkish Airlines Logo
11:25 am - 8:10 amORD-OTP
12h 45m1 stop
Turkish Airlines Logo
9:30 am - 6:15 pmOTP-ORD
16h 45m1 stop
$528Turkish Airlines
Find Deal
Wed, Apr 1 - Wed, Apr 29
Turkish Airlines Logo
11:50 am - 8:50 amORD-OTP
13h 00m1 stop
Turkish Airlines Logo
9:55 pm - 11:05 amOTP-ORD
20h 10m1 stop
$529Turkish Airlines
Find Deal
Mon, Feb 23 - Mon, Mar 9
Lufthansa Logo
4:20 pm - 2:05 pmORD-OTP
13h 45m1 stop
Lufthansa Logo
5:55 am - 11:10 amOTP-ORD
13h 15m1 stop
$530Lufthansa
Find Deal
Mon, Jan 12 - Tue, Jan 27
Lufthansa Logo
10:50 pm - 6:35 pmORD-OTP
12h 45m1 stop
Lufthansa Logo
5:55 am - 12:55 pmOTP-ORD
15h 00m1 stop
$533Lufthansa
Find Deal
Thu, Mar 26 - Thu, Apr 9
Multiple Airlines Logo
6:30 pm - 1:05 amORD-OTP
22h 35m2 stops
Multiple Airlines Logo
9:45 pm - 5:20 pmOTP-ORD
27h 35m2 stops
$534Multiple Airlines
Find Deal
Mon, Jan 12 - Mon, Jan 26
Lufthansa Logo
4:20 pm - 2:10 pmORD-OTP
13h 50m1 stop
Lufthansa Logo
1:05 pm - 6:25 pmOTP-ORD
13h 20m1 stop
$535Lufthansa
Find Deal
Fri, Jan 9 - Fri, Jan 16
Multiple Airlines Logo
5:15 am - 11:50 pmORD-OTP
34h 35m3 stops
Multiple Airlines Logo
7:10 pm - 10:37 pmOTP-ORD
35h 27m2 stops
$536Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 28

Lufthansa flights from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport

Our best Lufthansa deals on Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport flight tickets
Lufthansa
Dec 8
ORD9:50 pmChicago O'Hare Intl
12h 45m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Dec 14
OTP2:50 pmBucharest Otopeni Intl
13h 15m
1 stop
ORD8:05 pmChicago O'Hare Intl
$520
Find similar
Lufthansa
Jan 13
ORD9:50 pmChicago O'Hare Intl
19h 15m
1 stop
OTP1:05 amBucharest Otopeni Intl
Jan 27
OTP5:55 amBucharest Otopeni Intl
13h 15m
1 stop
ORD11:10 amChicago O'Hare Intl
$523
Find similar
Lufthansa
Dec 7
ORD9:50 pmChicago O'Hare Intl
19h 15m
1 stop
OTP1:05 amBucharest Otopeni Intl
Dec 15
OTP2:50 pmBucharest Otopeni Intl
13h 15m
1 stop
ORD8:05 pmChicago O'Hare Intl
$557
Find similar

SWISS flights from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport

Our best SWISS deals on Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport flight tickets
SWISS
Apr 27
ORD7:05 pmChicago O'Hare Intl
12h 15m
1 stop
OTP3:20 pmBucharest Otopeni Intl
May 11
OTP6:30 amBucharest Otopeni Intl
17h 25m
1 stop
ORD3:55 pmChicago O'Hare Intl
$537
Find similar
SWISS
Dec 2
ORD9:05 pmChicago O'Hare Intl
19h 25m
2 stops
OTP12:30 amBucharest Otopeni Intl
Feb 4
OTP6:30 amBucharest Otopeni Intl
17h 50m
1 stop
ORD4:20 pmChicago O'Hare Intl
$544
Find similar
SWISS
Jan 12
ORD6:50 pmChicago O'Hare Intl
13h 00m
1 stop
OTP3:50 pmBucharest Otopeni Intl
Jan 26
OTP6:30 amBucharest Otopeni Intl
14h 15m
1 stop
ORD12:45 pmChicago O'Hare Intl
$545
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 November 25, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport 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

Mon 12/8

9:50 pm-6:35 pm

1 stop12h 45m

Bucharest Otopeni Intl

Mon 12/15

5:55 am-11:10 am

1 stop13h 15m

$520

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 1/18

9:50 pm-6:35 pm

1 stop12h 45m

Bucharest Otopeni Intl

Sun 2/1

5:55 am-1:10 pm

1 stop15h 15m

$521

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 1/13

9:50 pm-1:05 am

1 stop19h 15m

Bucharest Otopeni Intl

Tue 1/27

5:55 am-11:10 am

1 stop13h 15m

$523

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 4/1

11:25 am-8:10 am

1 stop12h 45m

Bucharest Otopeni Intl

Wed 4/29

9:30 am-6:15 pm

1 stop16h 45m

$528

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 2/23

11:50 am-8:50 am

1 stop13h 00m

Bucharest Otopeni Intl

Mon 3/9

9:55 pm-11:05 am

1 stop20h 10m

$529

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 1/12

4:20 pm-2:05 pm

1 stop13h 45m

Bucharest Otopeni Intl

Tue 1/27

5:55 am-11:10 am

1 stop13h 15m

$530

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 3/26

10:50 pm-6:35 pm

1 stop12h 45m

Bucharest Otopeni Intl

Thu 4/9

5:55 am-12:55 pm

1 stop15h 00m

$533

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 1/12

6:30 pm-1:05 am

2 stops22h 35m

Bucharest Otopeni Intl

Mon 1/26

9:45 pm-5:20 pm

2 stops27h 35m

$534

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 1/9

4:20 pm-2:10 pm

1 stop13h 50m

Bucharest Otopeni Intl

Fri 1/16

1:05 pm-6:25 pm

1 stop13h 20m

$535

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 1/14

5:15 am-11:50 pm

3 stops34h 35m

Bucharest Otopeni Intl

Wed 1/28

7:10 pm-10:37 pm

2 stops35h 27m

$536

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 Chicago O'Hare Intl Airport 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 November, then book flights to Bucharest Otopeni Intl Airport from Chicago O'Hare Intl Airport during February instead. Flights to Bucharest Otopeni Intl Airport in February, while not as cheap as those in November, still average around $549.

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

Our data shows that Friday is the least expensive day to fly to Bucharest Otopeni Intl Airport. Tickets to fly out on this day can be as low as $808. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport for around $931.

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

Our most recent data shows that the best time of day to fly to Bucharest Otopeni Intl Airport is in the morning. Flights from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport during this time can be as low as $607. In the afternoon is when there is more demand to fly to Bucharest Otopeni Intl Airport, so prices are often more expensive at around $872 per ticket.

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 Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Bucharest Otopeni Intl Airport for around $737 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 Chicago O'Hare Intl Airport for as low as $634 on momondo.

How have Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport flight prices changed over time?

As of November 2025, prices for Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport flights are approximately 45% more expensive when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport (ORD to OTP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport

Best Price Found

$827

Fastest flight time

12h 45m

Direct flights

None
The best flight deal from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport found on momondo in the last 72 hours is $827
The fastest flight from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport takes 12h 45m
There are no direct flights from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport. There are no popular flight routes from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport.
Search flight deals

  • How far is Chicago O'Hare Intl to Bucharest Otopeni Intl by plane?

    Bucharest Otopeni Intl is 5198.3 mi away from Chicago O'Hare Intl. A reasonable flight in good conditions will take 12h 15m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport refresh daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport.

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

    The travel and health documents you'll need for your trip to Bucharest Otopeni Intl Airport 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 Bucharest Otopeni Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport?

  • What is the most popular airline from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport?

Best airlines flying from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $385Free CancellationRating
7.4
1,589 reviews
Search Scandinavian Airlines flights
Turkish AirlinesPriceFrom $503Free CancellationRating
7.3
4,059 reviews
Search Turkish Airlines flights
Austrian AirlinesPriceFrom $517Free CancellationRating
7.6
874 reviews
Search Austrian Airlines flights
LOTPriceFrom $538Free CancellationRating
7.5
1,140 reviews
Search LOT flights
KLMPriceFrom $539Free CancellationRating
7.7
1,422 reviews
Search KLM flights
LufthansaPriceFrom $570Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights
British AirwaysPriceFrom $570Free CancellationRating
6.7
7,539 reviews
Search British Airways flights
United AirlinesPriceFrom $593Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
SWISSPriceFrom $597Free CancellationRating
7.5
1,794 reviews
Search SWISS flights
Air FrancePriceFrom $618Free CancellationRating
7.4
1,497 reviews
Search Air France flights

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