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: Wed Sep 6 2017 Return: Wed Sep 27 2017 Trip spans 22 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 Jul 4 2017 Return: Wed Jul 19 2017 Trip spans 16 days
British Airways
British Airways
ORD
6:25p
SOF
1:25a
31h 00m
1 stop
SOF
10:25a
ORD
5:25p
31h 00m
1 stop
Depart: Sun May 21 2017 Return: Mon Jun 5 2017 Trip spans 16 days
Lufthansa
Lufthansa
ORD
5:20p
SOF
10:35a
17h 15m
1 stop
SOF
8:55a
ORD
10:25p
13h 30m
1 stop
Depart: Mon Jul 24 2017 Return: Thu Aug 24 2017 Trip spans 32 days
SWISS
SWISS
ORD
10:45a
SOF
8:25a
21h 40m
1 stop
SOF
6:20a
ORD
7:25p
13h 05m
1 stop
Depart: Wed Jun 14 2017 Return: Tue Jun 20 2017 Trip spans 7 days
American Airlines
American Airlines
ORD
5:05a
SOF
1:25a
20h 20m
1 stop
SOF
10:30a
ORD
2:20p
27h 50m
1 stop
Depart: Fri Aug 4 2017 Return: Fri Sep 8 2017 Trip spans 36 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 Jun 11 2017 Return: Wed Jul 19 2017 Trip spans 39 days
Major Airline
Major Airline
ORD
11:50p
SOF
8:15p
20h 25m
2 stops
SOF
6:10a
ORD
9:39p
15h 29m
2 stops
Depart: Sat Jun 3 2017 Return: Fri Jul 7 2017 Trip spans 35 days
Air France
Air France
ORD
1:32p
SOF
4:05a
14h 33m
2 stops
SOF
3:10a
ORD
5:55p
14h 45m
2 stops
Depart: Sat Jul 29 2017 Return: Tue Sep 5 2017 Trip spans 39 days
KLM
KLM
ORD
12:00p
SOF
4:05a
16h 05m
2 stops
SOF
3:10a
ORD
12:18a
21h 08m
2 stops
Depart: Fri Oct 6 2017 Return: Fri Oct 20 2017 Trip spans 15 days
LOT Polish Airlines
LOT Polish Airlines
ORD
5:25p
SOF
5:15a
11h 50m
1 stop
SOF
1:40a
ORD
11:35p
21h 55m
1 stop
Depart: Wed May 3 2017 Return: Wed Jun 28 2017 Trip spans 57 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: Fri May 19 2017 Return: Thu Jun 8 2017 Trip spans 21 days
Iberia
Iberia
ORD
12:25p
SOF
11:45a
23h 20m
1 stop
SOF
2:35a
ORD
6:00p
15h 25m
1 stop
Depart: Thu Jun 8 2017 Return: Wed Jul 5 2017 Trip spans 28 days
United
United
ORD
7:15a
SOF
12:15a
17h 00m
2 stops
SOF
2:05a
ORD
6:20p
16h 15m
1 stop
Depart: Thu May 18 2017 Return: Tue Jun 6 2017 Trip spans 20 days
Austrian Airlines
Austrian Airlines
ORD
12:30p
SOF
5:50a
17h 20m
1 stop
SOF
2:45p
ORD
5:55p
27h 10m
1 stop
Depart: Thu Jun 1 2017 Return: Thu Jun 15 2017 Trip spans 15 days
Alitalia
Alitalia
ORD
11:05a
SOF
5:40a
18h 35m
1 stop
SOF
3:05p
ORD
5:10p
26h 05m
1 stop
Depart: Sun Sep 10 2017 Return: Wed Sep 20 2017 Trip spans 11 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 Jul 25 2017 Return: Wed Sep 6 2017 Trip spans 44 days
Lufthansa
Lufthansa
ORD
5:20p
SOF
6:30a
13h 10m
1 stop
SOF
2:05a
ORD
10:25p
20h 20m
1 stop
Depart: Mon Jul 31 2017 Return: Thu Aug 31 2017 Trip spans 32 days
SWISS
SWISS
ORD
10:45a
SOF
8:25a
21h 40m
1 stop
SOF
6:20a
ORD
7:25p
13h 05m
1 stop
Depart: Sat May 20 2017 Return: Fri Jun 9 2017 Trip spans 21 days
British Airways
British Airways
ORD
5:00a
SOF
1:25a
20h 25m
1 stop
SOF
10:30a
ORD
2:20p
27h 50m
1 stop
Depart: Mon Jun 19 2017 Return: Tue Jun 27 2017 Trip spans 9 days
American Airlines
American Airlines
ORD
5:05a
SOF
1:25a
20h 20m
1 stop
SOF
10:30a
ORD
2:20p
27h 50m
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
$663
Destination

Sofia
$663