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Cheap flights from Chicago O'Hare Intl Airport to Bucharest from $247

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 10/1. 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

Turkish Airlines Logo
11:50 am - 8:30 pmORD-OTP
24h 40m1 stop
Turkish Airlines Logo
3:30 pm - 10:05 amOTP-ORD
26h 35m1 stop
$550Turkish Airlines
Find Deal
Mon, Dec 29 - Wed, Feb 25
Turkish Airlines Logo
11:45 pm - 8:10 amORD-OTP
24h 25m1 stop
Turkish Airlines Logo
3:55 pm - 9:40 amOTP-ORD
25h 45m1 stop
$554Turkish Airlines
Find Deal
Mon, Sep 15 - Fri, Oct 17
LOT Logo
9:40 pm - 5:45 pmORD-OTP
12h 05m1 stop
LOT Logo
6:25 pm - 9:00 pmOTP-ORD
33h 35m1 stop
$556LOT
Find Deal
Tue, Oct 7 - Fri, Oct 31
Lufthansa Logo
9:40 pm - 6:35 pmORD-OTP
12h 55m1 stop
Lufthansa Logo
5:55 am - 1:10 pmOTP-ORD
15h 15m1 stop
$563Lufthansa
Find Deal
Tue, Oct 14 - Sat, Nov 8
LOT Logo
9:40 pm - 5:45 pmORD-OTP
12h 05m1 stop
LOT Logo
8:20 am - 9:00 pmOTP-ORD
19h 40m1 stop
$564LOT
Find Deal
Wed, Oct 22 - Sat, Nov 1
British Airways Logo
6:45 pm - 3:10 pmORD-OTP
12h 25m1 stop
British Airways Logo
4:45 pm - 1:50 pmOTP-ORD
29h 05m1 stop
$577British Airways
Find Deal
Fri, Jan 9 - Fri, Jan 16
British Airways Logo
4:55 pm - 2:05 pmORD-OTP
13h 10m1 stop
British Airways Logo
8:00 am - 6:45 pmOTP-ORD
18h 45m1 stop
$582British Airways
Find Deal
Sun, Oct 12 - Thu, Nov 6
United Airlines Logo
9:50 pm - 6:35 pmORD-OTP
12h 45m1 stop
United Airlines Logo
5:55 am - 7:30 pmOTP-ORD
21h 35m2 stops
$584United Airlines
Find Deal
Mon, Nov 17 - Tue, Dec 2
United Airlines Logo
9:40 pm - 6:35 pmORD-OTP
12h 55m1 stop
United Airlines Logo
5:55 am - 1:10 pmOTP-ORD
15h 15m1 stop
$585United Airlines
Find Deal
Wed, Oct 15 - Mon, Nov 3
Lufthansa Logo
9:40 pm - 6:35 pmORD-OTP
12h 55m1 stop
Lufthansa Logo
7:20 pm - 6:26 pmOTP-ORD
30h 06m2 stops
$619Lufthansa
Find Deal
Fri, Oct 10 - Fri, Oct 31

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
Dec 29
ORD11:50 amChicago O'Hare Intl
24h 40m
1 stop
OTP8:30 pmBucharest Otopeni Intl
Feb 25
OTP3:30 pmBucharest Otopeni Intl
26h 35m
1 stop
ORD10:05 amChicago O'Hare Intl
$550
Find similar
Turkish Airlines
Sep 15
ORD11:45 pmChicago O'Hare Intl
24h 25m
1 stop
OTP8:10 amBucharest Otopeni Intl
Oct 17
OTP3:55 pmBucharest Otopeni Intl
25h 45m
1 stop
ORD9:40 amChicago O'Hare Intl
$554
Find similar
Turkish Airlines
Sep 8
ORD11:45 pmChicago O'Hare Intl
24h 25m
1 stop
OTP8:10 amBucharest Otopeni Intl
Sep 22
OTP9:30 amBucharest Otopeni Intl
16h 25m
1 stop
ORD5:55 pmChicago O'Hare Intl
$573
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 17
ORD9:50 pmChicago O'Hare Intl
12h 45m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Dec 2
OTP5:55 amBucharest Otopeni Intl
21h 35m
2 stops
ORD7:30 pmChicago O'Hare Intl
$584
Find similar
United Airlines
Oct 15
ORD9:40 pmChicago O'Hare Intl
12h 55m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Nov 3
OTP5:55 amBucharest Otopeni Intl
15h 15m
1 stop
ORD1:10 pmChicago O'Hare Intl
$585
Find similar
United Airlines
Nov 19
ORD3:20 pmChicago O'Hare Intl
19h 20m
1 stop
OTP6:40 pmBucharest Otopeni Intl
Dec 2
OTP5:55 amBucharest Otopeni Intl
13h 15m
1 stop
ORD11:10 amChicago O'Hare Intl
$588
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 August 20, 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 12/29

11:50 am-8:30 pm

1 stop24h 40m

Bucharest Otopeni Intl

Wed 2/25

3:30 pm-10:05 am

1 stop26h 35m

$550

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 9/15

11:45 pm-8:10 am

1 stop24h 25m

Bucharest Otopeni Intl

Fri 10/17

3:55 pm-9:40 am

1 stop25h 45m

$554

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 10/7

9:40 pm-5:45 pm

1 stop12h 05m

Bucharest Otopeni Intl

Fri 10/31

6:25 pm-9:00 pm

1 stop33h 35m

$556

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 10/14

9:40 pm-6:35 pm

1 stop12h 55m

Bucharest Otopeni Intl

Sat 11/8

5:55 am-1:10 pm

1 stop15h 15m

$563

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 10/22

9:40 pm-5:45 pm

1 stop12h 05m

Bucharest Otopeni Intl

Sat 11/1

8:20 am-9:00 pm

1 stop19h 40m

$564

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 1/9

6:45 pm-3:10 pm

1 stop12h 25m

Bucharest Otopeni Intl

Fri 1/16

4:45 pm-1:50 pm

1 stop29h 05m

$577

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 10/12

4:55 pm-2:05 pm

1 stop13h 10m

Bucharest Otopeni Intl

Thu 11/6

8:00 am-6:45 pm

1 stop18h 45m

$582

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 11/17

9:50 pm-6:35 pm

1 stop12h 45m

Bucharest Otopeni Intl

Tue 12/2

5:55 am-7:30 pm

2 stops21h 35m

$584

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 10/15

9:40 pm-6:35 pm

1 stop12h 55m

Bucharest Otopeni Intl

Mon 11/3

5:55 am-1:10 pm

1 stop15h 15m

$585

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 10/10

9:40 pm-6:35 pm

1 stop12h 55m

Bucharest Otopeni Intl

Fri 10/31

7:20 pm-6:26 pm

2 stops30h 06m

$619

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 February, then book flights to Bucharest Otopeni Intl Airport from Chicago O'Hare Intl Airport during January instead. Flights to Bucharest Otopeni Intl Airport in January, while not as cheap as those in February, still average around $538.

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

Our data shows that Tuesday is the least expensive day to fly to Bucharest Otopeni Intl Airport. Tickets to fly out on this day can be as low as $718. 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. At noon is when there is more demand to fly to Bucharest Otopeni Intl Airport, so prices are often more expensive at around $905 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 $728 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 August 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

Direct flights

None
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 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
1,471 reviews
Search Scandinavian Airlines flights
Turkish AirlinesPriceFrom $503Free CancellationRating
7.3
3,949 reviews
Search Turkish Airlines flights
Austrian AirlinesPriceFrom $517Free CancellationRating
7.6
830 reviews
Search Austrian Airlines flights
LOTPriceFrom $536Free CancellationRating
7.6
1,110 reviews
Search LOT flights
British AirwaysPriceFrom $544Free CancellationRating
6.7
7,289 reviews
Search British Airways flights
LufthansaPriceFrom $545Free CancellationRating
6.8
7,337 reviews
Search Lufthansa flights
Air FrancePriceFrom $580Free CancellationRating
7.4
1,469 reviews
Search Air France flights
KLMPriceFrom $582Free CancellationRating
7.8
1,388 reviews
Search KLM flights
SWISSPriceFrom $587Free CancellationRating
7.6
1,699 reviews
Search SWISS flights
United AirlinesPriceFrom $588Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights

Traveling to a place near Bucharest?

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

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