$371 Find Cheap Flights from Bucharest to Illinois

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 Illinois departing on 4/18. 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 Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bucharest to Illinois.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bucharest to Illinois.
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Flight Deals

Book Cheap Bucharest to Illinois Plane Tickets

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

Tue, Apr 28 - Mon, May 4
LOT Logo
6:30 pm - 7:50 pm
OTP
-
ORD
33h 20m
1 stop
LOT Logo
9:50 pm - 1:50 pm
ORD
-
OTP
32h 00m
1 stop
$590LOT
Tue, Apr 28 - Tue, Jul 14
LOT Logo
5:35 am - 7:50 pm
OTP
-
ORD
22h 15m
1 stop
LOT Logo
9:50 pm - 1:50 am
ORD
-
OTP
20h 00m
1 stop
$604LOT
Sat, Apr 4 - Sun, Apr 19
LOT Logo
5:35 am - 7:50 pm
OTP
-
ORD
22h 15m
1 stop
LOT Logo
5:10 pm - 1:50 am
ORD
-
OTP
24h 40m
1 stop
$619LOT
Tue, Mar 31 - Mon, Apr 6
Delta Logo
7:05 am - 5:54 pm
OTP
-
MDW
18h 49m
2 stops
Delta Logo
1:10 pm - 5:20 pm
MDW
-
OTP
20h 10m
2 stops
$704Delta
Wed, Apr 1 - Tue, Apr 7
Delta Logo
7:05 am - 5:54 pm
OTP
-
MDW
18h 49m
2 stops
Delta Logo
9:30 am - 12:45 pm
MDW
-
OTP
19h 15m
2 stops
$768Delta
Sat, Jun 6 - Wed, Aug 5
United Airlines Logo
6:05 am - 3:46 pm
OTP
-
STL
17h 41m
2 stops
United Airlines Logo
3:30 pm - 12:50 pm
STL
-
OTP
13h 20m
1 stop
$777United Airlines
Mon, Apr 27 - Mon, May 4
Lufthansa Logo
6:05 am - 3:48 pm
OTP
-
STL
17h 43m
2 stops
Lufthansa Logo
1:24 pm - 12:00 pm
STL
-
OTP
14h 36m
2 stops
$789Lufthansa
Sat, Jun 6 - Wed, Aug 5
United Airlines Logo
6:05 am - 12:06 pm
OTP
-
STL
38h 01m
2 stops
United Airlines Logo
3:30 pm - 12:50 pm
STL
-
OTP
13h 20m
1 stop
$793United Airlines
Sat, Jun 6 - Wed, Aug 5
Lufthansa Logo
1:55 pm - 1:25 pm
OTP
-
STL
31h 30m
1 stop
Lufthansa Logo
3:30 pm - 12:50 pm
STL
-
OTP
13h 20m
1 stop
$1,001Lufthansa
Sat, Jun 6 - Wed, Aug 5
British Airways Logo
8:00 pm - 7:30 pm
OTP
-
STL
31h 30m
1 stop
British Airways Logo
9:35 pm - 12:20 am
STL
-
OTP
18h 45m
1 stop
$1,096British Airways
Booking Insights

KAYAK's insights & trends for Bucharest to Illinois flights

Get data-powered insights and trends into flights from Bucharest to Illinois 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 Illinois?

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 Illinois departing in April.

What is the cheapest Bucharest Otopeni Intl Airport to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Bucharest Otopeni Intl Airport found in the last 72 hours was to Chicago, at $380 round-trip. The most popular route is from Bucharest Otopeni Intl Airport (OTP) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $380.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Bucharest Otopeni Intl Airport to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $469 on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $469.

Can I save money by flying with a layover from Bucharest Otopeni Intl Airport to Illinois?

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $722 on average.

What is the cheapest month to fly from Bucharest Otopeni Intl Airport to Illinois?

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 Illinois, 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 Illinois is April, when tickets cost $635 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $831 and $812 respectively.

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

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

For Bucharest to Illinois, Saturday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Illinois back to Bucharest, the best deals are generally found on Monday, with Friday being the most expensive.

How far in advance should I book a flight from Bucharest Otopeni Intl Airport to Illinois?

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 Illinois, 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 Illinois, you should book around 2 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$371
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Bucharest to Chicago

FAQs - booking Illinois flights

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

    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 Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Bucharest to Illinois 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 Illinois?

    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 from Bucharest to Illinois with an airline and back with another airline.

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

    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 from Bucharest to Illinois 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 Illinois

 
See real verified KAYAK customer reviews for airlines flying from Bucharest to Illinois. 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 Illinois? 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 1471 reviews
7.1Entertainment
7.6Comfort
7.3Food
7.8Boarding
8.4Crew
Airline reviews

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

10.0 Excellentsmit, Mar 2026
BLR - AMS
Read more KLM reviews

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

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!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

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

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

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

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

Smooth flight, excellent crew and good food. Not enough space; sitting are too small.

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.

Very poor. Seats like economy class, food unbeatable, no charging, no entertainment, no WiFi, boarding by bus - no justification for calling and pricing this as business class

Boarding was delayed for an unknown reason for more than an hour. While the airplane was at the gate, the boarding time was moved by 10-20 minutes every 15 minutes. No entertainment on the plane.

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.

They never clean the toilet, and the food is worse

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Chargers didn’t work, no entertainment and we had to wait for taxiing for easily 40 minutes after arriving early. Bags were late too!

No real complaints. The in flight food was much better than I expected. The in flight entertainment was excellent.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Horrible Flight significantly delayed. Not due to united issue. But trying to rebook connection flight and get information about overnight accommodation was difficult. Agent did not seem to care or have any interest to help.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

This Japanese airline provides great service and very helpful in assisting their passengers.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Extremely bad BAD BAD BAD. NEVER TURKISH AIRLINES EVER AGAIN..PIRATES COMPANY.

Typically great service from Turkish with comfortable seat and amenitie, good food and great attention from staff.

Delicious food, comfortable and clean plane. It's a little cramped in the hall in front of the gate.

Very hot cabin made long flight uncomfortable, even in business class! Food was great. Istanbul business lounge had great food but too few bathrooms and seating . They also need more electric outlets for charging devices. Appreciate the ability to go through fast track lines w business class

The crew on this flight provided exceptional business class service to me.

The staff at the boarding or the rudest uninformative and no English whatsoever they’re very rude as if they are envious of you travelling I don’t understand how could someone would be this rude and this out of touch and cold

You charged me for luggage although the airline does not- you charged me for seat when customers can pick their own seat at checkout in I travel to Europe slot and I will not use kayak again

They oversold the tickets by one which was my ticket so I didn’t have a ticket till last second

Not good. I was supposed to be in Mint but got in economy class

Requested food options were always finished. Supplied food items were good but of course not the desired choices.

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Everything you need to know for your flight from Bucharest to Illinois

Information on your arrival and departure airports