OTP - ORD

$309 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 5/27. 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.
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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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Cheap Flights from Bucharest to Chicago

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bucharest to Chicago 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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Bucharest to O'Hare Intl.
Discover the best prices for you by selecting your travel dates on KAYAK.
Scandinavian Airlines Logo
9:25 pm - 4:10 pmOTP-ORD
26h 45m1 stop
Scandinavian Airlines Logo
7:15 pm - 8:35 pmORD-OTP
17h 20m1 stop
$462Scandinavian Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 11
Scandinavian Airlines Logo
9:25 pm - 11:47 pmOTP-ORD
34h 22m2 stops
Scandinavian Airlines Logo
7:15 pm - 8:35 pmORD-OTP
17h 20m1 stop
$500Scandinavian Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 11
Scandinavian Airlines Logo
9:25 pm - 1:23 pmOTP-ORD
47h 58m2 stops
Scandinavian Airlines Logo
7:15 pm - 8:00 pmORD-OTP
16h 45m1 stop
$502Scandinavian Airlines
Find Deal
Sun, Jun 15 - Tue, Sep 16
LOT Logo
5:35 am - 7:40 pmOTP-ORD
22h 05m1 stop
LOT Logo
4:55 pm - 1:50 amORD-OTP
24h 55m1 stop
$594LOT
Find Deal
Fri, Sep 26 - Fri, Oct 10
LOT Logo
5:35 am - 7:40 pmOTP-ORD
22h 05m1 stop
LOT Logo
9:40 pm - 5:45 pmORD-OTP
12h 05m1 stop
$595LOT
Find Deal
Fri, May 23 - Sat, Jun 7
KLM Logo
1:45 pm - 2:10 pmOTP-ORD
32h 25m1 stop
KLM Logo
4:20 pm - 3:25 pmORD-OTP
15h 05m1 stop
$626KLM
Find Deal
Tue, Jun 17 - Tue, Sep 16
British Airways Logo
8:25 am - 9:16 amOTP-ORD
32h 51m2 stops
British Airways Logo
5:00 pm - 1:25 amORD-OTP
24h 25m1 stop
$649British Airways
Find Deal
Wed, Jun 25 - Thu, Sep 4
British Airways Logo
9:15 pm - 11:55 amOTP-ORD
22h 40m1 stop
British Airways Logo
5:00 pm - 2:30 pmORD-OTP
13h 30m1 stop
$658British Airways
Find Deal
Thu, Jun 5 - Thu, Jul 10
Lufthansa Logo
6:40 pm - 2:55 pmOTP-ORD
28h 15m1 stop
Lufthansa Logo
9:40 pm - 12:55 amORD-OTP
19h 15m1 stop
$763Lufthansa
Find Deal
Fri, Jun 20 - Tue, Sep 2
Lufthansa Logo
6:05 am - 12:30 pmOTP-ORD
14h 25m1 stop
Lufthansa Logo
9:40 pm - 6:35 pmORD-OTP
12h 55m1 stop
$777Lufthansa
Find Deal
Tue, Jun 10 - Tue, Jul 8
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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.

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 Tuesday and avoid Saturdays if you are looking for the best rates. For your return to Bucharest, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

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 November, where tickets cost $595 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $833 and $831 respectively.

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 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonNovember
High seasonDecember
Cheapest flight$309
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 1% 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

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

    In the last 3 days, the lowest price for a flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport was $309 for a one-way ticket and $462 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?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Bucharest to Chicago?

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

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

    The two airlines most popular with KAYAK users for flights from Bucharest to Chicago are Delta and KLM. With an average price for the route of $634 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $698 and an overall rating of 7.8.

  • 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.

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 1334 reviews
7.8Boarding
7.2Food
7.7Comfort
7.1Entertainment
8.4Crew
Airline reviews

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

8.0 ExcellentShereen, Apr 2025AMS - YUL
Read more KLM reviews

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

The customer service rep on chat refused carrying golf set at no charge that is customary for LOT and others. I wanted yo carry just ONE club not even full set! Web check in was nightmare. Most horrible lounge at warsaw. To call it business class is a BIG exaggeration. Rude staff warsaw to nyc. Seats uncomfortable and not flat as is now customary. Bad content and entertainment system.

It was was okay but the seat was stiff and hard to sit on it!!

Seats were so uncomfortable, my butt hurts so much, I wish they have more cushions,it really was horrible, Except that, Stewarts were polite food was decent

The 737 lacked business-class seating. It was basically economy plus but with the middle seats left unsold. There were no TV screens but good food and service.

Plane is super outdated, seats not that comfortable for business class. Lounge also out dated. They need to catch up to 2024. Don’t think I’d ever fly again.

Everything was good, flight was smooth and on time Like service

Boarding was impossible to navigate. Had mobility issues and a business class ticket, but still boarded almost at the end of the queue because there was absolutely no organization or assistance.

Aircraft was new. Food so so, especially vegetarian was very disappointing.

Very courteous staff. Abnoxious passenger in front of me who reclined her seat all the way without warning and without considering the person behind her. My flight ORD-WAW was so much more pleasant because of the courtesy of the passenger in front of me.

LOT told me on my first flight that I had missed boarding my second flight and told us to go to a service desk to reschedule. We then were told our flight was still boarding and that we had to run through the Warsaw airport to catch it which is just a long long runway airport. The workers at the airport were not helpful at all and you have to go through two passport checkpoints. I have asthma and was almost dead when I got on the plane and no one helped or gave us water or even acknowledged us. The flight was fine - the crew members are not friendly so it’s a very functional flight at best. Also my bag didn’t make it to my final destination.

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Crew professional. Easy bag drop off. On time. Good entertainment.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

Per usual, flight status, staff courtesy and professionalism were excellent

The only thing is if Wi-Fi is available after you land and taxi to the gate. It takes forever to get to the gate, and having the Wi-Fi continue would be great to bide the time at least 5 minutes before you arrive at the entrance. That is my only comment; otherwise, everything was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

Seating was horrible. Small seats. Access to flight information and extras very iser unfriendly. Kept losing internet after paying for it. Staff in madison was as unprofessional and unhelpful.

Delayed due to no crew. On a major holiday travel day.

Other than being delayed 5.5 hours and having to get a hotel because I missed my connecting flight, it was an okay flight. No in-flight Wi-Fi or entertainment.

I wish seats were not reclinable. It's so claustrophobic when the person in front of you spends most of a nine hour flight leaned all the way back. The crew was really nice though and the dinner (red Thai curry) was pretty compelling.

Our flights were severely delayed, then canceled and we had to fly out next day with no sleep accommodation help. This led to our baggage being lost and the service reps after baggage couldn’t be bothered to help. They kept sending us to different counters when we were at the right counter to begin with. The only saving grace was the angel woman supervisor with blond hair who helped us put in a missing baggage claim.

The boarding system was all bogus - employees at the boarding gate were not sound like proffesional or may be possibly rational

I got an email in the morning of the flight 1/7, from Kayak, that I was rebooked from UA 906 to LH 430. Nobody at Lufthansa ot United knew about this. I went to both counters. at the airport. Also, Cheap Flights, who I booked the ticket through, did not know. I ended up staying on the United flight. But this was very disturbing, since I got a very late notice that I was rebooked to an earlier flight, I hurried to the airport to find out after a lot of inquiring that this was a mistake. Not a good Kayak experience.

After living in Europe for five years and flying with Lufthansa and KLM airlines, I’ve realized that United Airlines is now a budget carrier. The flight attendant are not friendly. The seats are not comfortable. And everything comes at a cost. I will be flying with KLM and Skyteam like Delta to the US going forward no doubt. United Airlines is not what it once was:

Delayed take off but I think they waited for passengers.

I had to fly United where the flight crew was atrocious

Flight was delayed for no reason and I missed my connection. This added another day of travel and I missed an event I was traveling home for.

I traveled with my sister, however ,we booked a flight separately, and we don't sitting next to each other. The staff on the board where on the top of this unit they find us sitting together. Ty lufthansa team. U are the best

Courtesy of waitress. Could improve on time management and check-in

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

Too much long line at the TSA and Security. Prepare for long walk for baggage claim.

Crew very helpful and friendly. Food is so so. Main meal is not always the best. Did have a choice of a snack part way which was either a cookie, corn snack, or similar. Second kind of meal was basically like a pizza pastry that really wasn’t a favorite but probably a European snack? Screens and selections of movies, tv and such were good. No WI-Fi unless you buy so no free texting or such on the long flight but I think that might be any overseas flight.

The boarding process was quite loud and chaotic. The flight attendants kept barking over the PA system about people needing to only stow large items in the overhead bins. During the one and only service, I was hit by the service cart. At the same time, a passenger was returning from the bathroom and the crew definitely saw him but stopped a few seats short of allowing him to sit down before starting service and made him wait a good 10 minutes before passing his seat and allowing him to sit down, after which he had to ask for his snack and beverage or he would have been passed over. Neither flight attendant thanked passengers as they left; in fact, I did not see them again once the plane door was opened.

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

The seats in row 31 are terrible and small and uncomfortable. Don't ever sit there. The window seat is so close to the curve of the plane is so annoying. I paid extra for this seat and I hated all 10 hours in it.

Food was terrible , crew were excellent , IFE was dire . Overall comfortable seat and cabin. Nothing special .

If my tv wasn’t broken and I wasn’t in a seat that didn’t allow for sleeping

Delayed flight due to lack of crew caused me to miss my connection

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