$378 Find Cheap Flights from Bucharest to Illinois

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bucharest to Illinois departing on 4/19. 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

Sun, Apr 19 - Sat, May 9
Turkish Airlines Logo
9:35 pm - 6:15 pm
OTP
-
ORD
28h 40m1 stop
Turkish Airlines Logo
7:50 pm - 8:15 pm
ORD
-
OTP
16h 25m1 stop
$588Turkish Airlines
Tue, Mar 24 - Tue, May 5
Turkish Airlines Logo
10:10 am - 7:25 pm
OTP
-
ORD
16h 15m1 stop
Turkish Airlines Logo
7:50 pm - 12:05 pm
ORD
-
OTP
32h 15m1 stop
$592Turkish Airlines
Mon, Jan 26 - Thu, Jan 29
Turkish Airlines Logo
10:10 am - 6:25 pm
OTP
-
ORD
16h 15m1 stop
Turkish Airlines Logo
8:20 pm - 8:30 pm
ORD
-
OTP
16h 10m1 stop
$603Turkish Airlines
Thu, Jan 22 - Fri, Jan 30
Delta Logo
6:00 am - 5:29 pm
OTP
-
MDW
19h 29m2 stops
Delta Logo
9:50 am - 1:50 pm
MDW
-
OTP
20h 00m2 stops
$731Delta
Sun, Feb 1 - Tue, Mar 31
Delta Logo
6:00 am - 6:36 pm
OTP
-
MDW
20h 36m2 stops
Delta Logo
10:45 am - 12:45 pm
MDW
-
OTP
18h 00m2 stops
$732Delta
Sun, Mar 1 - Mon, Mar 16
KLM Logo
8:35 am - 6:40 pm
OTP
-
MDW
18h 05m2 stops
KLM Logo
6:34 pm - 3:25 pm
MDW
-
OTP
13h 51m2 stops
$737KLM
Wed, Jan 21 - Sun, Jan 25
Lufthansa Logo
6:05 am - 1:55 pm
OTP
-
STL
15h 50m1 stop
Lufthansa Logo
3:50 pm - 2:05 pm
STL
-
OTP
14h 15m1 stop
$943Lufthansa
Wed, Jan 21 - Sun, Jan 25
Lufthansa Logo
6:05 am - 1:55 pm
OTP
-
STL
15h 50m1 stop
Lufthansa Logo
11:22 am - 12:20 pm
STL
-
OTP
16h 58m2 stops
$946Lufthansa
Wed, Jan 28 - Sat, Jan 31
United Airlines Logo
6:05 am - 1:55 pm
OTP
-
STL
15h 50m1 stop
United Airlines Logo
8:30 am - 2:05 pm
STL
-
OTP
21h 35m2 stops
$953United Airlines
Wed, Jan 28 - Sat, Jan 31
United Airlines Logo
6:05 am - 1:55 pm
OTP
-
STL
15h 50m1 stop
United Airlines Logo
9:57 am - 2:05 pm
STL
-
OTP
20h 08m2 stops
$956United Airlines
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 $457 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 $457.

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.

No, with an average price for the route of $667, prices are generally cheapest when you fly direct.

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 March, when tickets cost $571 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $837 and $811 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 3 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$588
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly with an average 13% 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.

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

    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.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Bucharest to the following destinations at these prices or less: Chicago $249 one-way - $462 round-trip

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.
7.7
KLMOverall score based on 1434 reviews
7.6Comfort
7.1Entertainment
8.4Crew
7.8Boarding
7.2Food
Airline reviews

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.

4.0 OkayShereen, Dec 2025
Read more KLM reviews

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

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

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.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

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.

During the flight, the fleas biting me in the plane.

The airport staff never announced that boarding has started. Both at iad or Islamabad or Istanbul.

Very bad experience with turkish airline tk 0001. Very uncomfortable seats and food ran out and crew was not helpful

The airline could improve its business class seats and privacy in line with its competitors.

To be prepared for being treated with disrespect by the ground crew.

Seats too much and for the price we paid eve thought economy we still had to pay $169 to check a ba that’s ridiculous and also my daughter needed water so she can take her medicine we push the boton for the attendant to get us water they never came we push it 3 times no one came and ask what we needed . Am not happy with the service at all I will not fly with TK anymore

Boarding experience was a mess- both to and from Istanbul airport. No one knew anything. They asked everyone to line up according to their sit numbers- it was unbelievable. Business class had a separate line, but it was hard to find- I had to go through all that mess before finding it. Would not recommend

Excellent food and service on my international flight. Most notable is the food provided by Turkish even for coach passengers is very good.

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.

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.

Overall, the service was excellent, the crew verry professional, and departures and arrivals were perfect.

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

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

very small seats the scree did not work. I could not watch anything for 9 hours.

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.

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything. Employees offered to help me because I had to use a cane.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

Great seat in premium economy, great food and drinks throughout lots of in flight entertainment. 1 hour 40 min delayed flying out , 2 1/2 hour wait at passport control in tampa

Plane was extremely delayed, but not all of it was BA fault (some was). Worst part was lack of room - this had as much space as an Allegiant flight. I thought transatlantic usually gave you an extra inch or two, but not this one. Entertainment system sporadically worked and didn’t have great options. Overhead bins are old and tiny, not as good as aunties new planes.

My seat cushion was poor. The cushion was compressed and was uncomfortable for such a long flight.

Besides having a LONG layover in Philadelphia to begin with, our flight was delayed and left late. We spent 7 hours in the Philadelphia airport after being in the air 7 hours from Portugal to Philly. It turned into a 24 hour day of travel which was exhausting. I know you can't help weather but our layover was difficult as my husband is handicapped. The staff was EXTREMELY helpful with his wheelchair tho!!

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

Information on your arrival and departure airports