Find Cheap Flights from Chicago to Sofia (CHI - SOF)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Chicago to Sofia

(Round-trip)
Depart: Sun Oct 1 2017 Return: Wed Oct 25 2017 Trip spans 25 days
Multiple Airlines
Multiple Airlines
ORD
SOF
32h 00m
2 stops
SOF
ORD
36h 05m
2 stops
Depart: Sun Oct 1 2017 Return: Sun Oct 22 2017 Trip spans 22 days
Turkish Airlines
Turkish Airlines
ORD
SOF
27h 25m
1 stop
SOF
ORD
27h 55m
1 stop
Depart: Mon Dec 25 2017 Return: Fri Jan 19 2018 Trip spans 26 days
LOT Polish Airlines
LOT Polish Airlines
ORD
SOF
20h 00m
1 stop
SOF
ORD
22h 05m
1 stop
Depart: Tue Sep 19 2017 Return: Mon Oct 9 2017 Trip spans 21 days
KLM
KLM
MDW
SOF
18h 35m
2 stops
SOF
MDW
21h 37m
2 stops
Depart: Tue Sep 26 2017 Return: Tue Oct 31 2017 Trip spans 36 days
Turkish Airlines
Turkish Airlines
ORD
SOF
15h 05m
1 stop
SOF
ORD
28h 40m
1 stop
Depart: Tue Sep 26 2017 Return: Mon Oct 16 2017 Trip spans 21 days
Multiple Airlines
Multiple Airlines
ORD
SOF
30h 30m
1 stop
SOF
ORD
31h 00m
1 stop
Depart: Mon Jan 1 2018 Return: Sat Jan 20 2018 Trip spans 20 days
LOT Polish Airlines
LOT Polish Airlines
ORD
SOF
20h 00m
1 stop
SOF
ORD
33h 55m
1 stop
Depart: Tue Sep 26 2017 Return: Mon Oct 16 2017 Trip spans 21 days
KLM
KLM
MDW
SOF
18h 35m
2 stops
SOF
MDW
21h 37m
2 stops
Depart: Sat Sep 16 2017 Return: Mon Oct 2 2017 Trip spans 17 days
LOT Polish Airlines
LOT Polish Airlines
ORD
SOF
11h 50m
1 stop
SOF
ORD
29h 00m
1 stop
Depart: Mon Oct 2 2017 Return: Mon Oct 23 2017 Trip spans 22 days
Multiple Airlines
Multiple Airlines
MDW
SOF
15h 15m
2 stops
SOF
MDW
21h 37m
2 stops
Depart: Sun Oct 1 2017 Return: Mon Oct 16 2017 Trip spans 16 days
KLM
KLM
MDW
SOF
17h 22m
2 stops
SOF
MDW
21h 37m
2 stops
Depart: Tue Dec 5 2017 Return: Tue Jan 9 2018 Trip spans 36 days
KLM
KLM
MDW
SOF
17h 08m
2 stops
SOF
MDW
18h 45m
2 stops
Depart: Tue Aug 22 2017 Return: Fri Sep 22 2017 Trip spans 32 days
Multiple Airlines
Multiple Airlines
ORD
SOF
24h 20m
2 stops
SOF
ORD
36h 45m
2 stops
Depart: Sun Dec 10 2017 Return: Fri Dec 29 2017 Trip spans 20 days
KLM
KLM
MDW
SOF
17h 40m
2 stops
SOF
MDW
18h 25m
2 stops
Depart: Mon Jan 1 2018 Return: Sat Jan 20 2018 Trip spans 20 days
KLM
KLM
MDW
SOF
19h 00m
2 stops
SOF
MDW
21h 25m
2 stops
Depart: Fri Aug 25 2017 Return: Mon Sep 25 2017 Trip spans 32 days
KLM
KLM
MDW
SOF
17h 30m
2 stops
SOF
MDW
18h 30m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Chicago
only $588
only $706
Destination

Sofia
$588