Find Cheap Flights to Bulgaria

Depart
Return
1 adult
Cabin Economy
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
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The price shown for each flight will be the average for all passengers including any infants.
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(Round-trip)
Depart: Wed Sep 13 2017 Return: Mon Sep 18 2017 Trip spans 6 days
$579
Select
Turkish Airlines
Turkish Airlines
BOS
→
SOF
14h 10m
1 stop
SOF
→
BOS
27h 35m
1 stop
Depart: Tue Aug 1 2017 Return: Thu Sep 7 2017 Trip spans 38 days
$617
Select
Lufthansa
Lufthansa
BOS
→
SOF
19h 20m
1 stop
SOF
→
BOS
19h 30m
1 stop
Depart: Tue Aug 29 2017 Return: Sun Sep 17 2017 Trip spans 20 days
$622
Select
Air Serbia
Air Serbia
JFK
→
SOF
17h 50m
1 stop
SOF
→
JFK
27h 00m
1 stop
Depart: Wed Jan 3 2018 Return: Fri Jan 19 2018 Trip spans 17 days
$639
Select
Aeroflot
Aeroflot
JFK
→
SOF
34h 05m
1 stop
SOF
→
JFK
28h 10m
1 stop
Depart: Mon Dec 25 2017 Return: Wed Jan 10 2018 Trip spans 17 days
$666
Select
Qatar Airways
Qatar Airways
JFK
→
SOF
24h 50m
1 stop
SOF
→
JFK
25h 25m
1 stop
Depart: Mon Sep 4 2017 Return: Tue Oct 17 2017 Trip spans 44 days
$675
Select
SWISS
SWISS
EWR
→
SOF
19h 00m
1 stop
SOF
→
EWR
23h 00m
1 stop
Depart: Tue Nov 28 2017 Return: Fri Dec 29 2017 Trip spans 32 days
$717
Select
Air Canada
Air Canada
LGA
→
SOF
21h 10m
2 stops
SOF
→
LGA
34h 40m
2 stops
Depart: Wed Oct 18 2017 Return: Mon Oct 30 2017 Trip spans 13 days
$726
Select
KLM
KLM
MDW
→
SOF
15h 45m
2 stops
SOF
→
MDW
18h 40m
2 stops
Depart: Tue Jan 2 2018 Return: Thu Jan 18 2018 Trip spans 17 days
$727
Select
LOT Polish Airlines
LOT Polish Airlines
EWR
→
SOF
20h 00m
1 stop
SOF
→
EWR
22h 00m
1 stop
Depart: Fri Sep 8 2017 Return: Sat Sep 23 2017 Trip spans 16 days
$732
Select
Norwegian
Norwegian
JFK
→
BOJ
15h 30m
1 stop
BOJ
→
JFK
27h 50m
1 stop
Depart: Tue Aug 29 2017 Return: Thu Oct 12 2017 Trip spans 45 days
$733
Select
American Airlines
American Airlines
LGA
→
SOF
15h 40m
2 stops
SOF
→
LGA
24h 29m
2 stops
Depart: Thu Aug 3 2017 Return: Tue Aug 29 2017 Trip spans 27 days
$749
Select
Alitalia
Alitalia
ORD
→
SOF
13h 10m
1 stop
SOF
→
ORD
29h 10m
2 stops
Depart: Sat Sep 16 2017 Return: Sun Oct 1 2017 Trip spans 16 days
$751
Select
British Airways
British Airways
ORD
→
SOF
20h 15m
1 stop
SOF
→
ORD
30h 55m
1 stop
Depart: Mon Aug 28 2017 Return: Mon Sep 18 2017 Trip spans 22 days
$766
Select
Delta
Delta
DCA
→
SOF
37h 13m
2 stops
SOF
→
DCA
27h 27m
2 stops
Depart: Sun Dec 17 2017 Return: Sat Jan 6 2018 Trip spans 21 days
$991
Select
United
United
SFO
→
SOF
32h 20m
2 stops
SOF
→
SFO
24h 11m
2 stops
Depart: Wed Oct 4 2017 Return: Mon Oct 16 2017 Trip spans 13 days
$1033
Select
Austrian Airlines
Austrian Airlines
EWR
→
VAR
12h 00m
1 stop
VAR
→
EWR
31h 20m
1 stop
Depart: Mon Oct 23 2017 Return: Thu Nov 2 2017 Trip spans 11 days
$591
Select
Turkish Airlines
Turkish Airlines
BOS
→
SOF
26h 30m
1 stop
SOF
→
BOS
28h 35m
1 stop
Depart: Sat Sep 16 2017 Return: Sun Oct 1 2017 Trip spans 16 days
$1265
Select
Air France
Air France
MDW
→
SOF
15h 15m
2 stops
SOF
→
MDW
16h 49m
2 stops
Depart: Thu Jul 27 2017 Return: Tue Aug 8 2017 Trip spans 13 days
$653
Select
Lufthansa
Lufthansa
BOS
→
SOF
19h 15m
1 stop
SOF
→
BOS
30h 15m
1 stop
Depart: Fri Nov 17 2017 Return: Sat Nov 25 2017 Trip spans 9 days
$597
Select
Turkish Airlines
Turkish Airlines
BOS
→
SOF
27h 20m
1 stop
SOF
→
BOS
16h 05m
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.

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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.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin
San Francisco
$991
New York
only $717
only $622
Chicago
only $749
only $726
Newark
$675
Washington
$766
Boston
$579
Destination
Varna
$1033
Sofia
$579
Burgas
$732