$453 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 9/12. 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, Sep 29 - Wed, Oct 21
Delta Logo
6:00 am - 4:11 pm
OTP
-
MDW
18h 11m
2 stops
Delta Logo
12:30 pm - 1:00 pm
MDW
-
OTP
16h 30m
2 stops
$783Delta
Wed, Dec 16 - Tue, Jan 12
Delta Logo
6:00 am - 4:50 pm
OTP
-
MDW
18h 50m
2 stops
Delta Logo
1:00 pm - 2:10 pm
MDW
-
OTP
17h 10m
2 stops
$787Delta
Wed, Dec 16 - Tue, Jan 12
Delta Logo
6:00 am - 4:50 pm
OTP
-
MDW
18h 50m
2 stops
Delta Logo
1:00 pm - 2:10 pm
MDW
-
OTP
17h 10m
2 stops
$788Delta
Wed, Aug 5 - Wed, Aug 26
LOT Logo
6:30 pm - 3:05 pm
OTP
-
ORD
28h 35m
2 stops
LOT Logo
9:50 pm - 5:45 pm
ORD
-
OTP
11h 55m
1 stop
$794LOT
Thu, Aug 20 - Fri, Sep 11
KLM Logo
7:05 am - 2:15 pm
OTP
-
ORD
15h 10m
1 stop
KLM Logo
4:20 pm - 12:55 am
ORD
-
OTP
24h 35m
1 stop
$805KLM
Wed, Jul 15 - Wed, Aug 19
LOT Logo
6:30 pm - 3:05 pm
OTP
-
ORD
28h 35m
2 stops
LOT Logo
5:10 pm - 11:15 pm
ORD
-
OTP
22h 05m
2 stops
$806LOT
Wed, Jul 8 - Sun, Jul 12
British Airways Logo
4:15 pm - 4:28 pm
OTP
-
STL
32h 13m
2 stops
British Airways Logo
9:40 pm - 12:50 am
STL
-
OTP
19h 10m
1 stop
$1,023British Airways
Thu, Oct 8 - Mon, Oct 12
British Airways Logo
8:15 am - 11:41 pm
OTP
-
STL
23h 26m
2 stops
British Airways Logo
6:51 pm - 1:20 am
STL
-
OTP
22h 29m
2 stops
$1,077British Airways
Mon, Jul 6 - Fri, Jul 10
Lufthansa Logo
6:05 am - 7:26 pm
OTP
-
STL
21h 21m
2 stops
Lufthansa Logo
1:13 pm - 1:10 pm
STL
-
OTP
15h 57m
2 stops
$1,097Lufthansa
Wed, Jul 8 - Sun, Jul 12
Lufthansa Logo
6:05 am - 1:25 pm
OTP
-
STL
15h 20m
1 stop
Lufthansa Logo
3:30 pm - 4:30 pm
STL
-
OTP
17h 00m
1 stop
$1,196Lufthansa
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 August.

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 5 days was to Chicago, at $868 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 5 days was $868.

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 $770 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 $770.

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 $736, 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 June, when tickets cost $118 (return) on average. On the other hand, the most expensive months are September and November, when the average cost of round-trip tickets is $630 and $616 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 Tuesday, 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 27% 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$453
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 16% 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 1530 reviews
7.8Boarding
8.4Crew
7.7Comfort
7.2Entertainment
7.3Food
Airline reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

8.0 ExcellentAnonymous, Jun 2026
LHR - AMS
Read more KLM reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

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

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

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

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

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.

Issue with boarding, group of passengers on a religious trip coming back to NYC kept trying to change seats, even standing when the plane was pushing back. Crew/Pilot kept very good composure, some passengers got aggravated and started venting out loud but this group created a serious security risk. Crew/Pilot should've been more stringent and called in security or remove them from the flight.

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!!

I have flown over 2million miles. Great flight but bizarre boarding process. They must have paged half the passengers to the desk for documentation check before boarding anyone. Overall great value.

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

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!

Nice, it was nice to have a free night's stay because our layover was over 18 hours.

Could have been better. Bag rechecking could have been eliminated. Gate location and direction need to be clearly stated.

Older plane with finicky seats. Crew often seem to focus on "pet" clients and over extend services to some over others. I get less attention since I'm not a regular business class client. Regardless, I've paid the money and would expect equal attention.

Our flight attendant was stellar with great anticipation and attention to details. Food was very good, and overall flight, though very long, was really good.

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.

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.

Impossible charge phone inside airplane. Entertainment system does not support charging at all. Everything else is perfect

This airline cancelled 3 of my tickets and did not even notify me of the cancellation therefoe my advice is to stay awaway!!

The flights that i booked with them were totally unreliable as they cancelled and/or switched itinereis left and right so I definitely could not recommend them. It was as also imppossible to contact them for anything-hence my poor rating

It was an hour late, but these days, that's not a big deal All went well, can't complain

Just fine. Flight was full, so that's not easy, but in general, it was a fine experience, no problems

No real business class on this plane, I had to ask for the food 1.5hrs after take off, super warm beer, very very poor service

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

Information on your arrival and departure airports