OTP - ORD

$393 Find Cheap Flights from Bucharest to Chicago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bucharest to O'Hare Intl departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bucharest to Chicago.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bucharest to Chicago.
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$746
Typical prices: $767-$678
Delta
Thu 9/24Mon 10/12
OTP - ORD • 2 stops
Cheapest one-way
$393
Overall average: $615
Multiple Airlines
Wed 9/16
OTP - ORD • 3 stops
Nonstop flights
2 days a week
Thu, Sun
You can fly direct with HiSky. Average duration is 10h 50m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top airlines
Cheapest • from $746 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $444 (round-trip)
Shortest trip • 13h 12m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 15% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to O'Hare Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Bucharest to O'Hare Intl (OTP-ORD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bucharest to O'Hare Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Bucharest to O'Hare Intl

Thu, Sep 24 - Mon, Oct 12
Delta Logo
7:05 am - 8:24 pm
OTP
-
ORD
21h 19m
2 stops
Delta Logo
12:15 pm - 12:45 pm
ORD
-
OTP
16h 30m
2 stops
$746Delta
Fri, Sep 25 - Sun, Oct 11
Delta Logo
7:05 am - 6:41 pm
OTP
-
ORD
19h 36m
2 stops
Delta Logo
7:00 am - 12:45 pm
ORD
-
OTP
21h 45m
2 stops
$770Delta
Tue, Sep 22 - Mon, Oct 12
Delta Logo
6:00 am - 5:41 pm
OTP
-
ORD
19h 41m
2 stops
Delta Logo
7:00 am - 12:45 pm
ORD
-
OTP
21h 45m
2 stops
$776Delta
Mon, Jun 15 - Thu, Sep 24
Austrian Airlines Logo
6:55 pm - 1:20 pm
OTP
-
ORD
26h 25m
1 stop
Austrian Airlines Logo
12:55 pm - 6:05 pm
ORD
-
OTP
21h 10m
2 stops
$777Austrian Airlines
Thu, Oct 1 - Thu, Oct 22
Lufthansa Logo
6:05 am - 12:55 pm
OTP
-
ORD
14h 50m
1 stop
Lufthansa Logo
3:35 pm - 1:10 am
ORD
-
OTP
25h 35m
1 stop
$784Lufthansa
Tue, Sep 29 - Tue, Oct 20
Lufthansa Logo
1:50 pm - 12:55 pm
OTP
-
ORD
31h 05m
1 stop
Lufthansa Logo
9:40 pm - 1:10 am
ORD
-
OTP
19h 30m
1 stop
$785Lufthansa
Fri, Jun 26 - Sun, Jul 12
Lufthansa Logo
6:05 am - 11:00 am
OTP
-
ORD
12h 55m
1 stop
Lufthansa Logo
9:40 pm - 1:10 am
ORD
-
OTP
19h 30m
1 stop
$786Lufthansa
Sun, Sep 27 - Sun, Oct 18
SWISS Logo
4:10 pm - 12:35 pm
OTP
-
ORD
28h 25m
1 stop
SWISS Logo
2:20 pm - 3:20 pm
ORD
-
OTP
17h 00m
1 stop
$791SWISS
Thu, Jun 25 - Thu, Jul 9
Lufthansa Logo
6:05 am - 7:55 pm
OTP
-
ORD
21h 50m
1 stop
Lufthansa Logo
9:40 pm - 1:10 am
ORD
-
OTP
19h 30m
1 stop
$793Lufthansa
Tue, Sep 29 - Tue, Oct 20
SWISS Logo
4:10 pm - 12:35 pm
OTP
-
ORD
28h 25m
1 stop
SWISS Logo
2:40 pm - 3:20 pm
ORD
-
OTP
16h 40m
1 stop
$794SWISS
Booking Insights

KAYAK's insights & trends for Bucharest to O'Hare Intl flights

Get data-powered insights and trends into flights from Bucharest to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport departing in September.

What’s the cheapest day of the week to fly from Bucharest to Chicago?

The average price of all round-trip flights from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.

When flying from Bucharest to Chicago, you should consider leaving on a Saturday and avoid Thursdays if you are looking for the best rates. For your return to Bucharest, you’ll find the best rates on Sundays and the most expensive ones on Fridays.

What is the cheapest month to fly from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport is February, where tickets cost $659 (return) on average. On the other hand, the most expensive months are August and April, where the average cost of round-trip tickets is $883 and $855 respectively.

Can I save money by flying with a layover from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $736, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport, you should book around 2 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$393
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Bucharest to Chicago

When to book flights from Bucharest to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Bucharest to O'Hare Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Bucharest to Chicago flights

  • How many flights are there between Bucharest Otopeni Intl Airport and Chicago O'Hare Intl Airport per day?

    There is a maximum of 1 nonstop flight a day that takes off from Bucharest Otopeni Intl Airport and lands in Chicago O'Hare Intl Airport, with an average flight time of 10h 50m. The most common departure time is 9:00 am and most flights take off in the morning. Each week, there are 2 flights.

  • What is the cheapest flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport?

    In the last 7 days, the lowest price for a flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport was $393 for a one-way ticket and $746 for a round-trip.

  • Do I need a passport to fly between Bucharest and Chicago?

    Yes

  • Which airports will I be using when flying from Bucharest to Chicago?

    Bucharest airport is called Bucharest Otopeni Intl and the only airport in Chicago is Chicago O'Hare Intl.

  • Which aircraft models fly most regularly from Bucharest to Chicago?

    The Airbus A330 is the aircraft model that flies most regularly on the Bucharest to Chicago flight route.

  • Which airline alliances offer flights from Bucharest to Chicago?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Bucharest and Chicago, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Bucharest to Chicago?

    You can catch a nonstop flight from Bucharest to Chicago on Thursday, and Sunday.

  • Which is the best airline for flights from Bucharest to Chicago, KLM or LOT?

    The two airlines most popular with KAYAK users for flights from Bucharest to Chicago are KLM and LOT. With an average price for the route of $838 and an overall rating of 7.8, KLM is the most popular choice. LOT is also a great choice for the route, with an average price of $779 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Bucharest to Chicago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Bucharest to Chicago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Bucharest to Chicago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Bucharest is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Bucharest to Chicago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Bucharest with another airline. Booking your flights between Bucharest and ORD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Bucharest to Chicago?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Bucharest up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $418 or less one-way and $855 or less round-trip.

Prefer to fly direct from Bucharest to Chicago?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Bucharest Otopeni Intl to Chicago O'Hare Intl.
Find which airlines fly direct from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct departures

Bucharest Otopeni Intl to Chicago O'Hare Intl

Thursday

HiSky

HiSky

Sunday

HiSky

HiSky

See more direct flights

Direct returns

Chicago O'Hare Intl to Bucharest Otopeni Intl

Thursday

HiSky

HiSky

Sunday

HiSky

HiSky

See more direct flights

Reviews of the top 5 airlines serving from Bucharest to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from Bucharest to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Bucharest to O'Hare Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1519 reviews
8.4Crew
7.3Food
7.8Boarding
7.7Comfort
7.2Entertainment
Airline reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

10.0 ExcellentGeorge, May 2026
OTP - AMS
Read more KLM reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

Outstanding even though the 330 was one of the oldest in the fleet. The difference was the attentiveness and responsiveness of a really experienced flight attendant. For airline food great variety of interesting choices and good tastes supported by a good wine selection.

Brand new plane lots of room the snack was very flavourful and enjoyable

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

The flight was delayed. The aircraft was unclean. Promised seat was not given due to change in Aircraft. Not one crew on ground was in a position to give any response. Amsterdam Airport is AVIODABLE Over crowded. Over Expensive. Poor Services.

It was really nice journey i personally recommend klm flight

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Empty seats next to me - wish it had been for a longer flight!!

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

Amazing crew, delicious food and drink selection. 12hr felt more like a 4hrs. Comfortable beds. Can’t wait for the new business class cabin

Flying business class saves you. Once you get out of the terminal and onto the plane, it’s fine. The traffic at the gate is a horror. No organization at all. The fact that Business class is promised early boarding is a myth.

Every time I fly LOT, I swear I will never do it again. And changing planes in Warsaw is a horror. Not even remotely organized. I can only feel sorry for the staff who have to put up with it.

My information was stolen, and someone used my card to purchase airline tickets. Everything has been submitted to my bank, and the police. Thank you!!

The seat was paid for but given for some different person .

Good in general, but i think the chair is not comfortable for traveling more than 2 hours ..

Krakow airport is very disorganized. nice seats. friendly crew. long legs had screens. short leg did not

Stuck on a plane for 6 hours due to a technical or mechanical issue.

Horrible communication, flight boarded then we sat on plane for almost 5 hours as the runway was barely covered in snow with no plows in sight and the as we tried to taxi there was a major equipment failure due to poor push off technique causing all passengers to be taken off the flight to ultimately have the flight cancelled. There was barely any communication to passengers as to what was happening or what to do next to get placed on another flight. Arriving to my final destination a whole day later having to take a connecting flight through Lisbon to ultimately end up in New York instead of a direct flight as none available for the next day. Never flying LOT airlines again!

The seats are very narrow. Communication regarding bids for better seating could be better

Be honest of what you sell: This was sold as Business Class on all three legs, while the JetBlue plane didn't even have business class seats, and wanted $164 for extra legroom seats.

Great food, and lots of it. They made us come to the gate two hours before the flight and you were stuck in the enclosure until you boarded with no bathroom or food or drink. My seat in business class was very claustrophobic, I could barely get into it and a large board blocked the window and made it even more claustrophobic

Turkish Business Class is a wonderful experience, and the best inflight dining experience I’ve had to date.

The crew was amazing and the food was really good too

Some of the best service I’ve ever seen on an international flight! The staff were super friendly and accommodating. The food was excellent with lots of choices and attention to detail. The seats are kind of old and narrow, but I have wide shoulders. The only area for improvement was making the cabin a little cooler.

It was fantastic. I really enjoyed it. It’s comfortable the flight attendant. Respect you anything you ask for they gave you except the water.

We were experiencing delayed for 4 hours and of course they took us to Turkish airlines lounge but we could not rested up since there is no bedroom. It was tiring and long day for us🙏 Especially we didn’t fly until 5:45am morning for Miami🙏😢

On Turkish it is all about the food and the service. I am overwhelmed with the quality and variety of the dining service offered on business class. I prefer the updated A350 to the older B777 cabin layout, but both are comfortable. Flights left and arrived on time with updates from the captain. I will definitely fly with them again.

Excellent service. Friendly and attentive flight attendants, can lay back in business class and be pretty comfortable, and delicious food. Flight on time departing and arriving.

I will say the same as my previous comment. Great job over all! From 1-10, ten be the best… I will give 9!

The legroom was lacking and the entertainment system lacked adequate selection of older films. Modern films are generally not very good.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Everything could have been better. What needed to be wrong with United went wrong

It was good. The seats in economy weren’t bad

Very good. Comfortable and I felt well taken care of from start to finish

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

I don’t understand how they charge as much as they do for such a poor experience

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Business class lounge for my gate was closed and no email was sent, causing me to walk back and forth to different gates, etc for over 20 minutes one way. Flight entertainment was mediocre with very poor choices especially for business class cabin. Original flight was cancelled and rebooking was difficult and no reason given for cancellation.

Very comfortable flight and simple and directed one way and back. Amazing price.

We loved our flight attendant, Emma from Scotland, the meal and entertainment offerings were wonderful, the flight was smooth, and enough leg room to stretch. We would fly with you again!

Los Angeles to London. 25th of April 2026. Business class. I was flying backwards with a complete stranger snoring next to me. In Business class. Males and females, strangers lying next to each other. Seats were backwards. I paid for comfort. I got dizziness and stress.

24 hour delays aren’t even heard in 3rd world countries with archaic transportation systems. I’m never flying American Airlines again.

Long line with check in at the DIA British Airway counter.

The flights were on time. Cabin crew were nice. The food was terrible! Checking in was not easy using my phone.

Crew were fantastic and the aircraft was extremely comfortable, but outdated. Headphone jacks were worn out and sound normally only came out of one ear unless positioned just right.

Departure was delayed leading to late arrival, 25 min wait for a gate. Basically, missed all our connections & had to be rebooted, which was a very long process.

Good flight, no turbulence. I felt safe and comfortable which is really important when I am just a passenger.

Everything you need to know for your flight from Bucharest to O'Hare Intl

Information on your arrival and departure airports