Find Cheap Flights from Chicago O'Hare International to Sofia (ORD - 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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Chicago O'Hare International to Sofia

(Round-trip)
Depart: Sun Sep 3 2017 Return: Tue Sep 19 2017 Trip spans 17 days
Qatar Airways
Qatar Airways
ORD
3:45p
SOF
7:15a
39h 30m
1 stop
SOF
4:15p
ORD
6:35p
26h 20m
1 stop
Depart: Tue May 30 2017 Return: Tue Jun 20 2017 Trip spans 22 days
SWISS
SWISS
ORD
3:10p
SOF
9:40p
30h 30m
1 stop
SOF
5:05p
ORD
7:25p
26h 20m
1 stop
Depart: Sat May 27 2017 Return: Wed May 31 2017 Trip spans 5 days
Lufthansa
Lufthansa
ORD
12:05p
SOF
10:05a
22h 00m
1 stop
SOF
2:05a
ORD
10:25p
20h 20m
1 stop
Depart: Mon May 29 2017 Return: Sun Jun 4 2017 Trip spans 7 days
Austrian Airlines
Austrian Airlines
ORD
12:30p
SOF
11:00a
22h 30m
1 stop
SOF
9:40a
ORD
5:55p
32h 15m
1 stop
Depart: Tue Jul 25 2017 Return: Thu Aug 24 2017 Trip spans 31 days
Major Airline
Major Airline
ORD
2:05p
SOF
10:40a
20h 35m
1 stop
SOF
9:40a
ORD
3:55p
30h 15m
2 stops
Depart: Fri Jul 21 2017 Return: Fri Aug 25 2017 Trip spans 36 days
Alitalia
Alitalia
ORD
11:05a
SOF
6:15a
19h 10m
1 stop
SOF
2:35p
ORD
5:10p
26h 35m
1 stop
Depart: Thu Jun 1 2017 Return: Thu Jun 22 2017 Trip spans 22 days
British Airways
British Airways
ORD
5:00a
SOF
1:25a
20h 25m
1 stop
SOF
10:30a
ORD
3:15p
28h 45m
1 stop
Depart: Sun Aug 27 2017 Return: Wed Sep 6 2017 Trip spans 11 days
Air Serbia
Air Serbia
ORD
11:25a
SOF
3:30a
16h 05m
2 stops
SOF
12:00p
ORD
3:45p
27h 45m
2 stops
Depart: Sun Aug 20 2017 Return: Fri Sep 22 2017 Trip spans 34 days
Turkish Airlines
Turkish Airlines
ORD
5:40p
SOF
8:45a
15h 05m
1 stop
SOF
6:00a
ORD
9:35p
15h 35m
1 stop
Depart: Sun Jul 2 2017 Return: Wed Aug 2 2017 Trip spans 32 days
American Airlines
American Airlines
ORD
5:05a
SOF
1:25a
20h 20m
1 stop
SOF
10:25a
ORD
2:20p
27h 55m
1 stop
Depart: Mon Jun 19 2017 Return: Mon Jul 3 2017 Trip spans 15 days
$1031
Select
KLM
KLM
ORD
12:00p
SOF
4:05a
16h 05m
2 stops
SOF
6:40p
ORD
4:23p
21h 43m
2 stops
Depart: Sat Jun 17 2017 Return: Tue Jul 11 2017 Trip spans 25 days
$1311
Select
LOT Polish Airlines
LOT Polish Airlines
ORD
5:25p
SOF
1:35p
20h 10m
1 stop
SOF
1:40a
ORD
9:05p
19h 25m
1 stop
Depart: Wed Sep 20 2017 Return: Wed Oct 4 2017 Trip spans 15 days
Qatar Airways
Qatar Airways
ORD
3:45p
SOF
7:15a
39h 30m
1 stop
SOF
4:15p
ORD
6:35p
26h 20m
1 stop
Depart: Tue Aug 1 2017 Return: Fri Sep 15 2017 Trip spans 46 days
Lufthansa
Lufthansa
ORD
6:35p
SOF
10:05a
15h 30m
1 stop
SOF
2:05a
ORD
6:30p
16h 25m
1 stop
Depart: Mon Jul 24 2017 Return: Sat Aug 26 2017 Trip spans 34 days
SWISS
SWISS
ORD
10:45a
SOF
8:25a
21h 40m
1 stop
SOF
11:40a
ORD
4:25p
28h 45m
1 stop
Depart: Wed Sep 27 2017 Return: Wed Oct 11 2017 Trip spans 15 days
Qatar Airways
Qatar Airways
ORD
3:45p
SOF
7:15a
39h 30m
1 stop
SOF
4:15p
ORD
6:35p
26h 20m
1 stop
Depart: Wed Jul 26 2017 Return: Thu Aug 24 2017 Trip spans 30 days
Alitalia
Alitalia
ORD
11:05a
SOF
6:15a
19h 10m
1 stop
SOF
3:05p
ORD
5:10p
26h 05m
1 stop
Depart: Fri Jun 2 2017 Return: Fri Jun 23 2017 Trip spans 22 days
British Airways
British Airways
ORD
5:05a
SOF
1:10a
20h 05m
1 stop
SOF
10:30a
ORD
2:20p
27h 50m
1 stop
Depart: Fri Jul 28 2017 Return: Sun Aug 27 2017 Trip spans 31 days
Lufthansa
Lufthansa
ORD
12:05p
SOF
10:05a
22h 00m
1 stop
SOF
3:25p
ORD
10:25p
31h 00m
1 stop
Depart: Mon Jul 31 2017 Return: Sat Sep 2 2017 Trip spans 34 days
SWISS
SWISS
ORD
3:10p
SOF
8:25a
17h 15m
1 stop
SOF
11:40a
ORD
7:25p
31h 45m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Chicago
$665
Destination

Sofia
$665