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Find cheap flights from Illinois to Southeast Europe from $238

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Illinois to Southeast Europe departing on 4/23. 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
0 bags
Sun 4/28
Sun 5/5

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In the last 7 days travelers have searched 46,342,885 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

July

Cheapest flight

$238
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 43% increase in price.
Flight from Chicago O'Hare Airport to Sofia

FAQs for booking flights from Illinois to Southeast Europe

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

    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 Southeast Europe.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Southeast Europe 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 Southeast Europe?

    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 Southeast Europe 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 Southeast Europe?

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

See more FAQs

Book cheap flights from Illinois to Southeast Europe

Recent round-trip flight deals

4/9Tue
1 stopTurkish Airlines
12h 45mORD-OTP
4/18Thu
1 stopTurkish Airlines
20h 00mOTP-ORD
$535
4/29Mon
1 stopBritish Airways
12h 20mORD-ZAG
5/13Mon
1 stopBritish Airways
30h 00mZAG-ORD
$536
4/18Thu
1 stopSWISS
30h 25mORD-SJJ
4/22Mon
1 stopSWISS
32h 25mSJJ-ORD
$539
4/29Mon
1 stop
19h 50mORD-SJJ
5/13Mon
1 stop
14h 10mSJJ-ORD
$541
4/11Thu
1 stopLufthansa
14h 55mORD-SKP
5/22Wed
1 stopLufthansa
13h 00mSKP-ORD
$543
4/27Sat
1 stop
20h 45mORD-SKP
5/20Mon
1 stop
15h 55mSKP-ORD
$545
4/17Wed
1 stopAustrian Airlines
23h 50mORD-SJJ
5/5Sun
1 stopAustrian Airlines
14h 10mSJJ-ORD
$549
4/11Thu
1 stopAustrian Airlines
24h 55mORD-SKP
4/20Sat
1 stopAustrian Airlines
31h 40mSKP-ORD
$551
4/27Sat
1 stopLufthansa
16h 45mORD-SKP
5/20Mon
1 stopLufthansa
28h 40mSKP-ORD
$560
4/18Thu
1 stopSWISS
30h 25mORD-SJJ
5/2Thu
2 stopsSWISS
32h 20mSJJ-ORD
$564

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Recent one-way flight deals

4/23Tue
2 stops
32h 31mORD-SOF
$238
4/2Tue
2 stops
33h 55mORD-SOF
$265
4/24Wed
1 stopAustrian Airlines
12h 35mORD-SKP
$464
5/1Wed
1 stopAustrian Airlines
14h 40mORD-SJJ
$466
4/3Wed
1 stopAir Serbia
18h 50mORD-SJJ
$475
8/12Mon
1 stopLufthansa
14h 05mORD-ZAG
$475
4/15Mon
1 stopLufthansa
14h 55mORD-SKP
$475
4/28Sun
1 stopSWISS
11h 30mORD-SJJ
$476
5/13Mon
1 stopSWISS
30h 55mORD-SJJ
$477
5/1Wed
nonstopAir Serbia
9h 40mORD-BEG
$1,002

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Last minute flights from Illinois to Southeast Europe

Last minute flight, train and bus deals

3/30Sat
multi-stopLufthansa
15h 55mORD-SKP
4/8Mon
multi-stopLufthansa
20h 00mSKP-ORD
$562
3/30Sat
multi-stopAustrian Airlines
23h 40mORD-SJJ
4/7Sun
multi-stopAustrian Airlines
29h 35mSJJ-ORD
$563
4/3Wed
multi-stopTurkish Airlines
16h 00mORD-ZAG
4/10Wed
multi-stopTurkish Airlines
27h 05mZAG-ORD
$568
4/3Wed
multi-stopAir Canada
13h 05mORD-ZAG
4/10Wed
multi-stopAir Canada
15h 31mZAG-ORD
$572
4/1Mon
multi-stop
13h 45mORD-SJJ
4/13Sat
multi-stop
40h 55mSJJ-ORD
$584
4/3Wed
multi-stopBritish Airways
36h 28mORD-ZAG
4/10Wed
multi-stopBritish Airways
31h 20mZAG-ORD
$587
3/31Sun
multi-stopBritish Airways
19h 30mORD-OTP
4/8Mon
multi-stopBritish Airways
17h 40mOTP-ORD
$601
4/2Tue
multi-stopTurkish Airlines
28h 05mORD-SOF
4/18Thu
multi-stopTurkish Airlines
25h 55mSOF-ORD
$632
3/30Sat
multi-stop
55h 45mORD-SJJ
4/7Sun
multi-stop
29h 35mSJJ-ORD
$653
4/2Tue
multi-stopAir Canada
19h 10mORD-SOF
4/13Sat
multi-stopAir Canada
21h 36mSOF-ORD
$711

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Flights to Southeast Europe

Return flight deals:

Southeast Europe - Illinois

Cabin classes:

$235
$229
$226
$28

Browse destinations:

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