Boston Logan Intl
Sofia
2 stops
17h 30mMultiple Airlines
Chicago O'Hare Intl
Sofia
2 stops
34h 45mairBaltic
Chicago O'Hare Intl
Sofia
2 stops
21h 00mTAP AIR PORTUGAL
Chicago O'Hare Intl
Sofia
1 stop
32h 15mLOT
Boston Logan Intl
Sofia
1 stop
27h 40mTurkish Airlines
Boston Logan Intl
Sofia
1 stop
34h 55mMultiple Airlines
Chicago O'Hare Intl
Sofia
1 stop
15h 50mSofia
Chicago O'Hare Intl
1 stop
20h 30mTurkish Airlines
New York John F Kennedy Intl
Sofia
2 stops
17h 55mSofia
New York John F Kennedy Intl
2 stops
25h 55mMultiple Airlines
Newark
Sofia
1 stop
12h 20mSofia
Newark
1 stop
30h 15mLufthansa
New York John F Kennedy Intl
Sofia
1 stop
30h 35mSofia
New York John F Kennedy Intl
2 stops
30h 50mSWISS
Newark
Sofia
2 stops
15h 00mSofia
Newark
1 stop
26h 10mAustrian Airlines
Chicago O'Hare Intl
Sofia
1 stop
17h 15mSofia
Chicago O'Hare Intl
2 stops
31h 40mBritish Airways
January
$3,095
February
$3,256
March
$3,453
April
$3,751
May
$3,407
June
$1,787
July
$2,604
August
$3,243
September
$3,438
October
$3,128
November
$3,084
December
$2,653
June is currently the cheapest month to fly business class to Bulgaria. At this moment in time April is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.