OTP - ORD

$393 Find Cheap Flights from Bucharest to Chicago O'Hare Airport

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 5/2. 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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Everything you should know

Cheapest round-trip
$664
Typical prices: $624-$736
Lufthansa
Wed 12/10Thu 2/12
OTP - ORD • 1 stop
Cheapest one-way
$393
Typical prices: $439-$705
Multiple Airlines
Sat 5/2
OTP - ORD • 3 stops
Top airlines
Lufthansa
Cheapest • from $664 (round-trip)
KLM
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 12% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Wed, Dec 10 - Thu, Feb 12
Lufthansa Logo
6:05 am - 8:05 pmOTP-ORD
22h 00m1 stop
Lufthansa Logo
9:50 pm - 6:35 pmORD-OTP
12h 45m1 stop
$664Lufthansa
Find Deal
Fri, Jan 16 - Sat, Feb 21
LOT Logo
2:35 pm - 8:00 pmOTP-ORD
13h 25m1 stop
LOT Logo
9:55 pm - 5:40 pmORD-OTP
11h 45m1 stop
$665LOT
Find Deal
Fri, Nov 21 - Mon, Jun 1
Air Canada Logo
5:55 am - 8:00 amOTP-ORD
34h 05m2 stops
Air Canada Logo
7:00 am - 3:20 pmORD-OTP
24h 20m2 stops
$666Air Canada
Find Deal
Tue, Dec 9 - Fri, Jan 9
United Airlines Logo
5:55 am - 3:20 pmOTP-ORD
17h 25m1 stop
United Airlines Logo
3:20 pm - 2:10 pmORD-OTP
14h 50m1 stop
$667United Airlines
Find Deal
Wed, Dec 24 - Thu, Jan 8
British Airways Logo
3:50 pm - 1:50 pmOTP-ORD
30h 00m1 stop
British Airways Logo
9:45 pm - 3:10 pmORD-OTP
33h 25m1 stop
$693British Airways
Find Deal
Sat, Jan 31 - Sat, May 23
American Airlines Logo
8:05 am - 11:27 pmOTP-ORD
23h 22m2 stops
American Airlines Logo
11:55 am - 2:00 pmORD-OTP
18h 05m2 stops
$708American Airlines
Find Deal
Wed, Feb 18 - Sun, Feb 22
American Airlines Logo
8:05 am - 5:00 pmOTP-ORD
16h 55m1 stop
American Airlines Logo
9:45 pm - 7:35 pmORD-OTP
13h 50m1 stop
$717American Airlines
Find Deal
Fri, Nov 21 - Tue, Jun 2
British Airways Logo
8:20 pm - 6:45 pmOTP-ORD
30h 25m1 stop
British Airways Logo
7:05 pm - 1:25 amORD-OTP
22h 20m1 stop
$722British Airways
Find Deal
Fri, Nov 21 - Sat, Nov 29
Delta Logo
6:00 am - 9:27 pmOTP-ORD
23h 27m2 stops
Delta Logo
11:15 am - 12:05 pmORD-OTP
16h 50m2 stops
$739Delta
Find Deal
Mon, Nov 24 - Fri, Dec 12
Lufthansa Logo
5:55 am - 11:10 amOTP-ORD
13h 15m1 stop
Lufthansa Logo
6:45 pm - 11:50 pmORD-OTP
21h 05m2 stops
$741Lufthansa
Find Deal
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 December.

What’s the cheapest day of the week to fly from Bucharest to Chicago O'Hare Airport?

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 O'Hare Airport, 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 Fridays 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 September, where tickets cost $619 (return) on average. On the other hand, the most expensive months are August and October, where the average cost of round-trip tickets is $809 and $783 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 3 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$393
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 2% increase in price.
Flight from Bucharest to Chicago O'Hare Airport

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 O'Hare Airport 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 $393 for a one-way ticket and $664 for a round-trip.

  • Do I need a passport to fly between Bucharest and Chicago O'Hare Airport?

    Yes

  • Which airports will I be using when flying from Bucharest to Chicago O'Hare Airport?

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

  • Which aircraft models fly most regularly from Bucharest to Chicago O'Hare Airport?

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

  • Which airline alliances offer flights from Bucharest to Chicago O'Hare Airport?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Bucharest and Chicago O'Hare Airport, with SkyTeam 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 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $740 and an overall rating of 7.7.

  • How does KAYAK find such low prices on flights from Bucharest to Chicago O'Hare Airport?

    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 O'Hare Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport 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 O'Hare Airport?

    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 O'Hare Airport 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 O'Hare Airport?

    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 O'Hare Airport from Bucharest up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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.
7.7
KLMOverall score based on 1404 reviews
7.3Food
8.4Crew
7.7Comfort
7.8Boarding
7.1Entertainment
Airline reviews

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

2.0 MediocreElizabeth, Oct 2025CDG - AMS
Read more KLM reviews

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

The service was great. However the lounge only gets passing grade

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.

Flight was delayed for a hour from Warsaw, not sure why. When we landed in Chicago, plane was still on the runway for about half a hour. Took a while to get off.

No WiFi and ok comfort in business class. Home safe I guess that’s all that really matters.

The flight itself was pleasant and on time. Crew was very good. However, breakfast food was barely acceptable. Unfortunately this satisfies the recent industry standards. I asked for a sandwich with ham (another choice was cheese), but received a sandwich with roast beef.

Delay rushed to the next plane and bags didn’t arrive in chicago

Boarding could've been improved a bit, the rest is excellent.

Agents helping disable person doesnt know connections to Poland and after 9 agents helping and 2hours ,we made it to proper terminal. Polish Dreamliner its Polish nightmare liner with so narrow seats and no room under front seat for bag and feet,in economy class.To upgrade, to higher standart cost an arm and leg ,even there are empty seats No good experience overall

Checking in took very long for whatever reason. Flight comfort these days is always poor so… Crew was great thought!

The seats are small and the movie selection was disappointing. However, the food was excellent and the cabin crew was attentive and kind.

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!!

They can my date of travel and let me standard in Istanbul for three days stop over and only pay for one day in a hotel with only one breakfast for three days.

the flight was cancelled and I was rebooked twice, once 26 hours later, then another 24 hours later. In total the flight was delayed for 40 hours. Never again will I use kayak or Turkish Airlines for my travel.

it was a terrible experience. after 4 hours at the gate the flight was cancelled. the airline offered to rebook the flight for 26 hours later. Our team was travelling for an international competition. They missed the competition because the airline delayed them for over 30 hours. We already left the airport but the next morning we received an email stating that we were rebooked for a flight which was another 24 hours later after the already rebooked flight. We bought a ticket on Kayak. The reservation was delivered with a logo Airfareassist. I used Kayak services for over 20 years and assumed that I was dealing with a legitimate organization. Once the flight was postponed for over 40 hours, I learned that Airfareassist is a 3rd party agency whom kayak routes business to without notifying me, the customer. While I was entitled for a full refund, which was confirmed by the airline, Airfareassist only offered a partial refund and kept the difference. Kayak has failed to do a due diligence on the 3rd parties they do business with. As a result I will never do business with kayak again and am filing a complaint with the BBB and the Secretary of Transportation. This is a pure fraud and its unacceptable.

Worst experience with boarding once we left the wheel chair even traveling business we had to wait with all the crowd for the bus to take us to the plane then climb the stairs with our bags When you pay extra for comfort and convenience and you don’t get any is disappointing

Food is very turkish. No regard for other natinalities taste and preference. The entertainment can be improved- it was the same menu on 10/8/25 and 10/25/25. The boarding is the worst in the airline industry- I suggest you ask your staff to and watch how other airlines do it.

The best airline for international travel in terms of value you get in business class (service/cost)

I liked the overall flight experience. However, Turkish officials could do a better job at guiding non-Turkish speakers to their connecting flight gates in such a huge & vast airport.

Very small and cramped aisles and seats. Food was poor but the fresh hot roll and hummus was good. No cans of soda given but they had small bottles of water. Crew was nice and pleasant and kept bathroom clean.

We couldn’t fly to Chicago on our booked flight. The flight was overbooked.

Small seat space for 13 hours flight, they charged for baggage , very bad quality of food,

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.

Food was poor quality and the screens for entertainment didn’t work properly

It was a short flight, everything was good with it.

I darted through the Frankfurt airport to make my connecting flight. I asked if it was a possibility to upgrade and the agent did. This was the kindest gesture and it made up for the previous delayed flight and distress/anxiety of anticipating that Zi was going to miss my Frankfurt-Chicago connection. I cannot express my gratitude for the upgrade.. I am 5feet 10 inches do the leg space was amazing.

I meant this flight was not good, the one from Tirana to Frankfurt was better!

I was very grateful for Lufthansa's role in organizing mobility support. The touchscreen on my seat was faulty: slow, stained (I couldn't get it clean), and glitchy. This made selecting movies extremely time consuming, and twice I had to start all over from the beginning.

The crew was the best I’ve ever encountered. Business class was spacious, immaculate, and very modern.

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.

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

Great flight. One unique individual assisting in business class who should have not been there. Need more generic meals, not British centric.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

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

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