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

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 Illinois to Bucharest.

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

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

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

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

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

$269 CHEAP FLIGHTS from Illinois to Bucharest (OTP)

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Flight Deals

Cheap Flights from Illinois to Bucharest

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Illinois to Bucharest

Sun, Mar 28 - Sun, Apr 11

11:20 am - 8:35 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

13h 15m1 stop Istanbul

3:55 pm - 9:35 amOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

25h 40m1 stop Istanbul

$558Turkish Airlines

Sat, Dec 5 - Fri, Dec 18

5:30 pm - 3:05 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

13h 35m1 stop Belgrade Nikola Tesla

4:30 am - 4:50 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

20h 20m1 stop Belgrade Nikola Tesla

$622Air Serbia

Sat, Nov 28 - Thu, Dec 10

5:20 pm - 3:05 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

13h 45m1 stop Belgrade Nikola Tesla

4:30 am - 2:45 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

18h 15m1 stop Belgrade Nikola Tesla

$623Air Serbia

Fri, Feb 26 - Fri, Mar 12

8:15 pm - 8:40 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

28h 25m1 stop Istanbul

9:35 pm - 11:00 amOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

21h 25m1 stop Istanbul

$638Turkish Airlines

Wed, Dec 2 - Fri, Dec 11

6:30 pm - 1:30 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

23h 00m2 stops Reykjavik Keflavik Intl Rome Fiumicino

7:40 am - 5:20 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 40m2 stops Rome Fiumicino Reykjavik Keflavik Intl

$676Multiple Airlines

Fri, Nov 27 - Thu, Dec 10

8:10 pm - 1:55 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

33h 45m2 stops Lisbon Humberto Delgado Milan Malpensa

4:30 am - 2:45 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

18h 15m1 stop Belgrade Nikola Tesla

$679Multiple Airlines

Tue, Jan 26 - Tue, Feb 9

6:50 pm - 3:50 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

13h 00m1 stop Zurich

4:40 pm - 4:15 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

31h 35m1 stop Zurich

$692SWISS

Fri, Feb 26 - Fri, Mar 12

9:50 pm - 11:25 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

17h 35m1 stop Warsaw Frederic Chopin

8:20 am - 7:55 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

19h 35m1 stop Warsaw Frederic Chopin

$693LOT

Fri, Mar 5 - Wed, Mar 10

9:50 pm - 5:45 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

11h 55m1 stop Warsaw Frederic Chopin

8:20 am - 7:55 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

19h 35m1 stop Warsaw Frederic Chopin

$693LOT

Sun, Apr 18 - Thu, May 6

7:05 pm - 1:05 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

22h 00m1 stop Zurich

6:20 am - 3:55 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 35m1 stop Zurich

$699SWISS

Recent last minute flight deals from Illinois to Bucharest

Thu, Nov 5 - Thu, Nov 12

11:45 am - 8:15 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

24h 30m1 stop Istanbul

3:35 pm - 10:00 amOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

26h 25m1 stop Istanbul

$742Turkish Airlines

Thu, Nov 5 - Thu, Nov 12

7:10 pm - 11:30 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

20h 20m2 stops Kastrup Copenhagen Amsterdam Schiphol

4:50 pm - 4:45 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

31h 55m2 stops Amsterdam Schiphol Kastrup Copenhagen

$845Scandinavian Airlines

Wed, Nov 4 - Wed, Nov 11

7:10 pm - 11:30 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

20h 20m2 stops Kastrup Copenhagen Amsterdam Schiphol

4:50 pm - 4:45 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

31h 55m2 stops Amsterdam Schiphol Kastrup Copenhagen

$846Scandinavian Airlines

Wed, Nov 4 - Wed, Nov 11

9:50 pm - 6:30 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

12h 40m1 stop Munich Franz Josef Strauss

2:40 pm - 8:05 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

13h 25m1 stop Frankfurt am Main

$888Lufthansa

Wed, Nov 4 - Wed, Nov 11

6:50 pm - 1:15 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

22h 25m1 stop Zurich

6:00 am - 3:02 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 02m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$940Multiple Airlines

Thu, Nov 5 - Thu, Nov 12

6:50 pm - 3:50 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

13h 00m1 stop Zurich

6:00 am - 3:02 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 02m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$979Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

3:40 pm - 1:00 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

25h 20m2 stops Montreal Pierre Elliott Trudeau Intl Lyon-Saint Exupéry

6:30 pm - 5:20 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

30h 50m3 stops Warsaw Frederic Chopin Kastrup Copenhagen Reykjavik Keflavik Intl

$1,024Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

7:05 am - 11:25 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

32h 20m3 stops Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle Warsaw Frederic Chopin

2:35 pm - 1:10 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

30h 35m3 stops Warsaw Frederic Chopin Paris Charles de Gaulle Frankfurt am Main

$1,036Multiple Airlines

Thu, Nov 5 - Thu, Nov 12

11:45 am - 4:00 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

20h 15m2 stops Istanbul Chișinău Intl

5:35 am - 5:20 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

19h 45m3 stops Warsaw Frederic Chopin Brussels Bruxelles-National Reykjavik Keflavik Intl

$1,118Multiple Airlines

Useful Info

Low season	February
High season	July
Cheapest flight	$269

Best time to beat the crowds with an average 26% drop in price.

Most popular time to fly with an average 24% increase in price.

Flight from Chicago O'Hare Airport to Bucharest

How does KAYAK find such low prices on flights from Illinois to Bucharest?
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 Illinois to Bucharest.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Bucharest?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bucharest from 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 Illinois to Bucharest?
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 Bucharest with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Bucharest?
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 Bucharest from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.