
Keep the following information in mind while searching for Illinois to Sofia flight deals. Data was last updated October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $675 (Kissandfly.com) |
One-way from | $306 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $791 |
Fly from
Fly to
Route
Depart
Return
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Sun 11/15
8:10 pm-5:00 pm
2 stops36h 50m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Wed 11/4
7:00 pm-9:50 am
3 stops54h 50m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Wed 11/18
7:00 pm-9:35 pm
3 stops42h 35m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Mon 11/23
6:30 pm-7:10 pm
3 stops40h 40m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Mon 11/23
8:15 pm-8:55 pm
1 stop16h 40m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Sat 11/7
8:05 pm-9:15 pm
2 stops41h 10m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Fri 11/6
8:10 pm-8:10 pm
3 stops40h 00m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Wed 11/18
6:50 pm-3:25 pm
1 stop12h 35m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Mon 11/23
11:56 am-1:15 pm
2 stops17h 19m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Wed 1/27
11:25 am-1:15 pm
2 stops17h 50m
Sofia
Wed 2/17
6:25 am-3:20 pm
1 stop16h 55m
Everything you need to know about your flight from Illinois to Sofia
Find useful and relevant information for your journey from Illinois to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$451 | Average$1,036 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$526 | Average$745 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$573 | Average$846 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$583 | Average$895 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$586 | Average$989 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$610 | Average$1,055 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$612 | Average$985 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$614 | Average$868 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$616 | Average$1,030 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$726 | Average$875 | FlexibilityNo cancel fee | On-timeN/A |