Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Bucharest from $221

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Bucharest departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Bucharest

Cheap round-trip flights

Austrian Airlines Logo
4:20 pm - 12:30 pmORD-OTP
12h 10m1 stop
Austrian Airlines Logo
6:40 am - 6:31 pmOTP-ORD
19h 51m2 stops
$534Austrian Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 15
LOT Logo
9:55 pm - 5:40 pmORD-OTP
11h 45m1 stop
LOT Logo
6:25 pm - 7:55 pmOTP-ORD
33h 30m2 stops
$535LOT
Find Deal
Thu, Jan 8 - Sun, Jan 18
Turkish Airlines Logo
7:50 pm - 8:10 amORD-OTP
28h 20m1 stop
Turkish Airlines Logo
10:10 am - 6:25 pmOTP-ORD
16h 15m1 stop
$542Turkish Airlines
Find Deal
Thu, Oct 23 - Thu, Nov 6
Turkish Airlines Logo
11:50 am - 8:50 amORD-OTP
13h 00m1 stop
Turkish Airlines Logo
10:10 am - 6:25 pmOTP-ORD
16h 15m1 stop
$543Turkish Airlines
Find Deal
Thu, Nov 6 - Thu, Nov 13
Multiple Airlines Logo
4:20 pm - 12:30 pmORD-OTP
12h 10m1 stop
Multiple Airlines Logo
4:40 pm - 4:20 pmOTP-ORD
31h 40m1 stop
$548Multiple Airlines
Find Deal
Sat, Dec 6 - Fri, Jan 16
Multiple Airlines Logo
6:50 pm - 3:50 pmORD-OTP
13h 00m1 stop
Multiple Airlines Logo
5:50 am - 2:55 pmOTP-ORD
17h 05m2 stops
$551Multiple Airlines
Find Deal
Thu, Nov 6 - Thu, Nov 13
Delta Logo
5:20 pm - 10:50 pmORD-OTP
21h 30m1 stop
Delta Logo
1:55 pm - 3:20 pmOTP-ORD
32h 25m1 stop
$570Delta
Find Deal
Sun, Feb 15 - Thu, Mar 12
Delta Logo
10:35 am - 1:50 pmORD-OTP
19h 15m2 stops
Delta Logo
6:05 am - 3:10 pmOTP-ORD
17h 05m1 stop
$574Delta
Find Deal
Fri, Nov 14 - Fri, Nov 21
British Airways Logo
10:45 pm - 11:45 pmORD-OTP
18h 00m1 stop
British Airways Logo
8:20 pm - 2:50 pmOTP-ORD
25h 30m1 stop
$583British Airways
Find Deal
Thu, Mar 19 - Fri, Mar 27
British Airways Logo
5:49 pm - 7:30 pmSTL-OTP
17h 41m2 stops
British Airways Logo
8:05 am - 9:48 pmOTP-STL
20h 43m2 stops
$734British Airways
Find Deal
Thu, Mar 5 - Wed, Mar 11

Lufthansa flights from Illinois to Bucharest Otopeni Intl Airport

Our best Lufthansa deals on Illinois to Bucharest Otopeni Intl Airport flight tickets
Lufthansa
Nov 14
STL6:43 pmLambert-St Louis
15h 52m
2 stops
OTP6:35 pmBucharest Otopeni Intl
Nov 19
OTP6:05 amBucharest Otopeni Intl
15h 50m
1 stop
STL1:55 pmLambert-St Louis
$601
Find similar
Lufthansa
Mar 2
STL6:45 pmLambert-St Louis
15h 50m
2 stops
OTP6:35 pmBucharest Otopeni Intl
Mar 13
OTP5:55 amBucharest Otopeni Intl
16h 00m
1 stop
STL2:55 pmLambert-St Louis
$618
Find similar
Lufthansa
Oct 19
STL3:30 pmLambert-St Louis
13h 45m
1 stop
OTP1:15 pmBucharest Otopeni Intl
Nov 4
OTP7:25 pmBucharest Otopeni Intl
26h 30m
1 stop
STL1:55 pmLambert-St Louis
$620
Find similar

Air France flights from Illinois to Bucharest Otopeni Intl Airport

Our best Air France deals on Illinois to Bucharest Otopeni Intl Airport flight tickets
Air France
Nov 7
STL3:59 pmLambert-St Louis
15h 51m
2 stops
OTP3:50 pmBucharest Otopeni Intl
Nov 14
OTP6:05 amBucharest Otopeni Intl
19h 04m
2 stops
STL5:09 pmLambert-St Louis
$654
Find similar
Air France
Oct 6
MDW6:23 pmChicago Midway
17h 47m
2 stops
OTP8:10 pmBucharest Otopeni Intl
Oct 9
OTP6:30 amBucharest Otopeni Intl
19h 55m
2 stops
MDW6:25 pmChicago Midway
$1,954
Find similar
Air France
Oct 5
MDW10:35 amChicago Midway
17h 35m
2 stops
OTP12:10 pmBucharest Otopeni Intl
Oct 8
OTP6:30 amBucharest Otopeni Intl
19h 13m
2 stops
MDW5:43 pmChicago Midway
$1,955
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Bucharest Otopeni Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 23, 2025.
Use the filters below to find and compare flights from Illinois to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sat 11/8

4:20 pm-12:30 pm

1 stop12h 10m

Bucharest Otopeni Intl

Sat 11/15

6:40 am-6:31 pm

2 stops19h 51m

$534

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 1/8

9:55 pm-5:40 pm

1 stop11h 45m

Bucharest Otopeni Intl

Sun 1/18

6:25 pm-7:55 pm

2 stops33h 30m

$535

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 10/23

7:50 pm-8:10 am

1 stop28h 20m

Bucharest Otopeni Intl

Thu 11/6

10:10 am-6:25 pm

1 stop16h 15m

$542

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 11/6

11:50 am-8:50 am

1 stop13h 00m

Bucharest Otopeni Intl

Thu 11/13

10:10 am-6:25 pm

1 stop16h 15m

$543

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sat 12/6

4:20 pm-12:30 pm

1 stop12h 10m

Bucharest Otopeni Intl

Fri 1/16

4:40 pm-4:20 pm

1 stop31h 40m

$548

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 11/6

6:50 pm-3:50 pm

1 stop13h 00m

Bucharest Otopeni Intl

Thu 11/13

5:50 am-2:55 pm

2 stops17h 05m

$551

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 2/15

5:20 pm-10:50 pm

1 stop21h 30m

Bucharest Otopeni Intl

Thu 3/12

1:55 pm-3:20 pm

1 stop32h 25m

$570

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 11/14

10:35 am-1:50 pm

2 stops19h 15m

Bucharest Otopeni Intl

Fri 11/21

6:05 am-3:10 pm

1 stop17h 05m

$574

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 3/19

10:45 pm-11:45 pm

1 stop18h 00m

Bucharest Otopeni Intl

Fri 3/27

8:20 pm-2:50 pm

1 stop25h 30m

$583

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Thu 3/5

5:49 pm-7:30 pm

2 stops17h 41m

Bucharest Otopeni Intl

Wed 3/11

8:05 am-9:48 pm

2 stops20h 43m

$734

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Bucharest from

How to get the cheapest flight ticket from Illinois to Bucharest Otopeni Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

If you aren’t able to travel during the month of January, then book flights to Bucharest Otopeni Intl Airport from Illinois during October instead. Flights to Bucharest Otopeni Intl Airport in October, while not as cheap as those in January, still average around $578.

What is the cheapest day to depart on your flight to Bucharest Otopeni Intl Airport?

Our data shows that Tuesday is the least expensive day to fly to Bucharest Otopeni Intl Airport. Tickets to fly out on this day can be as low as $718. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Bucharest Otopeni Intl Airport for around $931.

What is the cheapest time of day to depart on your flight to Bucharest Otopeni Intl Airport?

Our most recent data shows that the best time of day to fly to Bucharest Otopeni Intl Airport is in the morning. Flights from Illinois to Bucharest Otopeni Intl Airport during this time can be as low as $607. At noon is when there is more demand to fly to Bucharest Otopeni Intl Airport, so prices are often more expensive at around $905 per ticket.

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

You are more likely to see cheaper flights to Bucharest Otopeni Intl Airport from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Bucharest Otopeni Intl Airport for around $719 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bucharest Otopeni Intl Airport from Illinois for as low as $634 on momondo.

Cheap Illinois to Bucharest Otopeni Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Bucharest Otopeni Intl Airport

Direct flights

None
There are no direct flights from Illinois to Bucharest Otopeni Intl Airport. There are no popular flight routes from Illinois to Bucharest Otopeni Intl Airport.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Bucharest Otopeni Intl Airport?

    Prices for flights from Illinois to Bucharest Otopeni Intl Airport refresh daily.

  • How many operators does momondo search for flights from Illinois to Bucharest Otopeni Intl Airport?

  • How old do you have to be to fly from Illinois to Bucharest Otopeni Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Bucharest Otopeni Intl Airport.

  • What documentation or ID do you need to fly to Bucharest Otopeni Intl Airport?

    The travel and health documents required for your trip to Bucharest Otopeni Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bucharest Otopeni Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Illinois to Bucharest Otopeni Intl Airport

Compare and see reviews for airlines that fly from Illinois to Bucharest Otopeni Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $385Free CancellationRating
7.4
1,492 reviews
Search Scandinavian Airlines flights
Turkish AirlinesPriceFrom $503Free CancellationRating
7.3
3,977 reviews
Search Turkish Airlines flights
Austrian AirlinesPriceFrom $517Free CancellationRating
7.6
853 reviews
Search Austrian Airlines flights
LufthansaPriceFrom $534Free CancellationRating
6.8
7,421 reviews
Search Lufthansa flights
LOTPriceFrom $538Free CancellationRating
7.6
1,117 reviews
Search LOT flights
British AirwaysPriceFrom $544Free CancellationRating
6.7
7,391 reviews
Search British Airways flights
Air FrancePriceFrom $580Free CancellationRating
7.4
1,466 reviews
Search Air France flights
KLMPriceFrom $582Free CancellationRating
7.8
1,387 reviews
Search KLM flights
SWISSPriceFrom $587Free CancellationRating
7.6
1,742 reviews
Search SWISS flights
United AirlinesPriceFrom $588Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Traveling to a place near Bucharest?

Book flights to Bucharest if you plan to visit one of these locations
Otopeni

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Bucharest?

It is quick and easy to find Illinois to Bucharest flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bucharest that suits you.

Can I find flights from Illinois to Bucharest with flexible booking policies on momondo?

All flight searches from Illinois to Bucharest on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Illinois to Bucharest?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bucharest from Illinois.

I’m not ready to book a flight from Illinois to Bucharest right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Bucharest, momondo offers a useful price alert feature which will track prices for flights to Bucharest from Illinois and alert you when they change.

An easier way to manage your Bucharest Otopeni Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 10/23
Thu 10/30
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Bucharest