$303 Find Cheap Flights from Illinois to Bulgaria

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Useful Info
Useful Info

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$303
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Chicago O'Hare Airport to Sofia

FAQs for booking flights from Illinois to Bulgaria

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

    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 Bulgaria.

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

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

    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 Illinois to Bulgaria 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 Illinois to Bulgaria?

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

  • What is the cheapest day to fly to Bulgaria?

    Based on KAYAK data, the cheapest day to fly to Bulgaria is Thursday where round-trip tickets can be as cheap as $885. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $1,047 on average.

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

    The cheapest time of day to fly to Bulgaria is generally in the morning, when round-trip flights cost $751 on average. Morning departures are around 29% cheaper than evening flights, on average. The most expensive time of day to fly to Bulgaria is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,107.

  • What is the cheapest month to fly from Illinois to Bulgaria?

    The cheapest month for flights from Illinois to Bulgaria is November, when tickets cost $578 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,181 and $1,076 respectively.

  • How far in advance should I book a flight from Illinois to Bulgaria?

    To get a below average price on the flight from Illinois to Bulgaria, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

  • How long is the flight to Bulgaria?

    An average nonstop flight from Illinois to Bulgaria takes 13h 38m, covering a distance of 5301 miles. The shortest route is Chicago O'Hare Intl Airport (ORD) to Sofia (SOF) with an average flight time of 11h 40m.

  • What are the most popular destinations in Bulgaria?

    Based on KAYAK flight searches, the most popular destination is Sofia (89% of total searches to Bulgaria). The next most popular destinations are Varna (8%) and Burgas (3%).

Book cheap flights from Illinois to Bulgaria

Recent round-trip flight deals

10/27Mon
1 stopAmerican Airlines
12h 20mORD-SOF
11/10Mon
1 stopAmerican Airlines
28h 30mSOF-ORD
$555
10/27Mon
2 stopsAmerican Airlines
17h 53mORD-SOF
11/10Mon
1 stopAmerican Airlines
31h 35mSOF-ORD
$559
10/27Mon
2 stopsBritish Airways
17h 09mORD-SOF
11/10Mon
2 stopsBritish Airways
32h 12mSOF-ORD
$571
8/18Mon
1 stopUnited Airlines
17h 20mORD-SOF
8/26Tue
2 stopsUnited Airlines
37h 03mSOF-ORD
$599
8/18Mon
2 stopsUnited Airlines
22h 55mORD-SOF
8/26Tue
2 stopsUnited Airlines
37h 03mSOF-ORD
$602
8/16Sat
1 stopAir Serbia
19h 35mORD-SOF
9/7Sun
1 stopAir Serbia
32h 35mSOF-ORD
$609
8/18Mon
1 stop
12h 35mORD-SOF
8/26Tue
1 stop
13h 55mSOF-ORD
$610
7/23Wed
1 stopAir Serbia
15h 05mORD-SOF
11/19Wed
1 stopAir Serbia
13h 10mSOF-ORD
$614
8/6Wed
1 stop
11h 45mORD-SOF
8/26Tue
1 stop
15h 55mSOF-ORD
$618
7/29Tue
1 stopBritish Airways
19h 45mORD-SOF
9/26Fri
2 stopsBritish Airways
26h 53mSOF-ORD
$657

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Recent one-way flight deals

7/9Wed
3 stops
41h 50mORD-SOF
$303
7/30Wed
1 stopAir Serbia
15h 05mORD-SOF
$370
7/31Thu
1 stopTurkish Airlines
16h 35mORD-SOF
$394
8/1Fri
1 stopTurkish Airlines
13h 10mORD-SOF
$413
7/29Tue
2 stopsAir Canada
26h 00mORD-SOF
$490
7/30Wed
2 stopsKLM
16h 14mMDW-SOF
$496
8/29Fri
2 stopsSWISS
20h 20mORD-SOF
$565
7/9Wed
1 stopSWISS
11h 45mORD-SOF
$572
8/29Fri
2 stopsKLM
16h 55mMDW-SOF
$681
6/9Mon
2 stopsAir Canada
25h 10mORD-SOF
$749

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Last minute flights from Illinois to Bulgaria

Last minute flight, train and bus deals

5/5Mon
multi-stop
31h 30mORD-SOF
5/20Tue
multi-stop
21h 52mSOF-ORD
$701
5/5Mon
multi-stopSWISS
31h 30mORD-SOF
5/19Mon
multi-stopSWISS
28h 40mSOF-ORD
$713
5/5Mon
multi-stop
17h 40mORD-SOF
5/19Mon
multi-stop
32h 25mSOF-ORD
$720
5/5Mon
multi-stopLOT
32h 15mORD-SOF
5/19Mon
multi-stopLOT
28h 15mSOF-ORD
$727
5/3Sat
multi-stopUnited Airlines
16h 50mORD-SOF
5/16Fri
multi-stopUnited Airlines
13h 20mSOF-ORD
$749
5/1Thu
multi-stopUnited Airlines
17h 20mORD-SOF
5/21Wed
multi-stopUnited Airlines
21h 57mSOF-ORD
$789
5/1Thu
multi-stopAir Canada
20h 35mORD-SOF
5/21Wed
multi-stopAir Canada
21h 57mSOF-ORD
$795
5/3Sat
multi-stopLufthansa
16h 30mORD-SOF
5/9Fri
multi-stopLufthansa
25h 55mSOF-ORD
$878
5/2Fri
multi-stopLOT
17h 00mORD-SOF
5/5Mon
multi-stopLOT
33h 00mSOF-ORD
$982
5/3Sat
multi-stopLufthansa
13h 05mORD-SOF
5/10Sat
multi-stopLufthansa
14h 40mSOF-ORD
$14,173

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Everything you need to know for your flight to Bulgaria

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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