Cheapest return flights from Boston to Sofia in July from $659

Best time to book flights for Boston (BOS) to Sofia (SOF) flights at AirHint

AirHint found the following cheapest return flights from Boston (BOS) to Sofia (SOF) in July 2025 (see full year).

Return flights

05 Jul - 20 Aug ITA Airways
17 Jul - 12 Aug SWISS
28 Jul - 30 Aug SWISS
29 Jul - 30 Aug SWISS
30 Jul - 31 Aug Lufthansa
05 Jul - 23 Aug Fly Play
01 Jul - 15 Jul Icelandair
25 Jul - 16 Aug Icelandair
19 Jul - 02 Aug Icelandair
18 Jul - 10 Aug ITA Airways

Also check the deals for one-way flights from Boston to Sofia in July.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Sofia

Cheap car rent in Sofia