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Cheap flights from Chicago O'Hare Intl Airport to Bucharest from $311

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 11/19. 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 - 1:05 amORD-OTP
19h 15m1 stop
Lufthansa Logo
5:55 am - 1:10 pmOTP-ORD
15h 15m1 stop
$527Lufthansa
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Tue, Dec 9 - Tue, Dec 16
Multiple Airlines Logo
5:20 pm - 3:50 pmORD-OTP
14h 30m1 stop
Multiple Airlines Logo
4:50 pm - 2:20 pmOTP-ORD
29h 30m1 stop
$534Multiple Airlines
Find Deal
Fri, Jan 9 - Fri, Jan 16
Delta Logo
5:20 pm - 10:50 pmORD-OTP
21h 30m1 stop
Delta Logo
6:00 am - 2:20 pmOTP-ORD
16h 20m1 stop
$535Delta
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Mon, Nov 24 - Sun, Dec 7
Multiple Airlines Logo
1:00 pm - 12:20 pmORD-OTP
15h 20m2 stops
Multiple Airlines Logo
6:05 am - 2:55 pmOTP-ORD
16h 50m2 stops
$538Multiple Airlines
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Wed, Jan 21 - Wed, Feb 4
United Airlines Logo
8:15 pm - 6:35 pmORD-OTP
38h 20m2 stops
United Airlines Logo
5:55 am - 1:10 pmOTP-ORD
15h 15m1 stop
$539United Airlines
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Sun, Nov 23 - Sun, Dec 7
Multiple Airlines Logo
9:50 pm - 1:05 amORD-OTP
19h 15m1 stop
Multiple Airlines Logo
5:50 am - 8:00 pmOTP-ORD
22h 10m2 stops
$540Multiple Airlines
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Thu, Nov 13 - Thu, Nov 27
Turkish Airlines Logo
11:50 am - 8:50 amORD-OTP
13h 00m1 stop
Turkish Airlines Logo
10:10 am - 6:25 pmOTP-ORD
16h 15m1 stop
$546Turkish Airlines
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Sat, Nov 8 - Thu, Nov 13
SWISS Logo
6:50 pm - 3:50 pmORD-OTP
13h 00m1 stop
SWISS Logo
4:35 pm - 4:20 pmOTP-ORD
31h 45m1 stop
$548SWISS
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Mon, Nov 17 - Wed, Dec 3
United Airlines Logo
10:35 pm - 6:25 pmORD-OTP
11h 50m1 stop
United Airlines Logo
2:50 pm - 2:55 pmOTP-ORD
32h 05m2 stops
$565United Airlines
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Sun, Nov 23 - Tue, Dec 2
LOT Logo
9:55 pm - 5:40 pmORD-OTP
11h 45m1 stop
LOT Logo
8:20 am - 7:55 pmOTP-ORD
19h 35m2 stops
$655LOT
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Tue, Nov 18 - Mon, Dec 1

Turkish Airlines flights from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport

Our best Turkish Airlines deals on Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport flight tickets
Turkish Airlines
Nov 8
ORD11:50 amChicago O'Hare Intl
13h 00m
1 stop
OTP8:50 amBucharest Otopeni Intl
Nov 13
OTP10:10 amBucharest Otopeni Intl
16h 15m
1 stop
ORD6:25 pmChicago O'Hare Intl
$546
Find similar
Turkish Airlines
Nov 2
ORD11:50 amChicago O'Hare Intl
13h 00m
1 stop
OTP8:50 amBucharest Otopeni Intl
Nov 7
OTP9:50 pmBucharest Otopeni Intl
28h 35m
1 stop
ORD6:25 pmChicago O'Hare Intl
$822
Find similar
Turkish Airlines
Oct 26
ORD12:50 pmChicago O'Hare Intl
12h 55m
1 stop
OTP8:45 amBucharest Otopeni Intl
Oct 30
OTP3:30 pmBucharest Otopeni Intl
26h 35m
1 stop
ORD11:05 amChicago O'Hare Intl
$864
Find similar

United Airlines flights from Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport

Our best United Airlines deals on Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport flight tickets
United Airlines
Nov 23
ORD8:15 pmChicago O'Hare Intl
38h 20m
2 stops
OTP6:35 pmBucharest Otopeni Intl
Dec 7
OTP5:55 amBucharest Otopeni Intl
15h 15m
1 stop
ORD1:10 pmChicago O'Hare Intl
$539
Find similar
United Airlines
Nov 23
ORD10:35 pmChicago O'Hare Intl
11h 50m
1 stop
OTP6:25 pmBucharest Otopeni Intl
Dec 2
OTP2:50 pmBucharest Otopeni Intl
32h 05m
2 stops
ORD2:55 pmChicago O'Hare Intl
$565
Find similar
United Airlines
Nov 17
ORD9:50 pmChicago O'Hare Intl
12h 45m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Nov 27
OTP5:50 amBucharest Otopeni Intl
21h 40m
2 stops
ORD7:30 pmChicago O'Hare Intl
$568
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 October 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

Tue 12/9

9:50 pm-1:05 am

1 stop19h 15m

Bucharest Otopeni Intl

Tue 12/16

5:55 am-1:10 pm

1 stop15h 15m

$527

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 1/9

5:20 pm-3:50 pm

1 stop14h 30m

Bucharest Otopeni Intl

Fri 1/16

4:50 pm-2:20 pm

1 stop29h 30m

$534

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 11/24

5:20 pm-10:50 pm

1 stop21h 30m

Bucharest Otopeni Intl

Sun 12/7

6:00 am-2:20 pm

1 stop16h 20m

$535

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 1/21

1:00 pm-12:20 pm

2 stops15h 20m

Bucharest Otopeni Intl

Wed 2/4

6:05 am-2:55 pm

2 stops16h 50m

$538

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 11/23

8:15 pm-6:35 pm

2 stops38h 20m

Bucharest Otopeni Intl

Sun 12/7

5:55 am-1:10 pm

1 stop15h 15m

$539

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 11/13

9:50 pm-1:05 am

1 stop19h 15m

Bucharest Otopeni Intl

Thu 11/27

5:50 am-8:00 pm

2 stops22h 10m

$540

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sat 11/8

11:50 am-8:50 am

1 stop13h 00m

Bucharest Otopeni Intl

Thu 11/13

10:10 am-6:25 pm

1 stop16h 15m

$546

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 11/17

6:50 pm-3:50 pm

1 stop13h 00m

Bucharest Otopeni Intl

Wed 12/3

4:35 pm-4:20 pm

1 stop31h 45m

$548

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 11/23

10:35 pm-6:25 pm

1 stop11h 50m

Bucharest Otopeni Intl

Tue 12/2

2:50 pm-2:55 pm

2 stops32h 05m

$565

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 11/18

9:55 pm-5:40 pm

1 stop11h 45m

Bucharest Otopeni Intl

Mon 12/1

8:20 am-7:55 pm

2 stops19h 35m

$655

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 January, 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 January, still average around $539.

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 $712 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 October 2025, prices for Chicago O'Hare Intl Airport to Bucharest Otopeni Intl Airport flights are approximately 10% cheaper 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

$829

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 $829
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 11h 45m.

  • 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
1,542 reviews
Search Scandinavian Airlines flights
Turkish AirlinesPriceFrom $504Free CancellationRating
7.3
4,028 reviews
Search Turkish Airlines flights
Austrian AirlinesPriceFrom $517Free CancellationRating
7.6
861 reviews
Search Austrian Airlines flights
LOTPriceFrom $538Free CancellationRating
7.6
1,136 reviews
Search LOT flights
LufthansaPriceFrom $553Free CancellationRating
6.8
7,529 reviews
Search Lufthansa flights
British AirwaysPriceFrom $570Free CancellationRating
6.7
7,474 reviews
Search British Airways flights
Air FrancePriceFrom $580Free CancellationRating
7.4
1,479 reviews
Search Air France flights
KLMPriceFrom $582Free CancellationRating
7.7
1,406 reviews
Search KLM flights
SWISSPriceFrom $587Free CancellationRating
7.5
1,772 reviews
Search SWISS flights
DeltaPriceFrom $591Free CancellationRating
7.9
7,995 reviews
Search Delta flights

Traveling to a place near Bucharest?

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