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Cheap flights from Islip, NY (ISP) to Bulgaria

ISP — SOF
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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Cheap flight deals from Islip to Bulgaria

Keep the following information in mind while searching for Islip to Bulgaria flight deals. Data was last updated August 1, 2025.

Popular in

December

Cheapest in

November

Average price

$736
Highest demand for flights based on searches. 4% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Cheapflights Insights

Everything you need to know about your flight from Islip to Bulgaria

What is the cheapest month to book a flight from Islip, New York to Bulgaria?

Currently, November is the cheapest month in which you can book a flight from Islip, New York to Bulgaria (average of $632). Flying from Islip, New York to Bulgaria in June is currently the most expensive (average of $1,187). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Islip to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Islip to Bulgaria?

    Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly out of when you book flights from Islip to Bulgaria.

  • Can I find deals for flights from Islip to Bulgaria that include hotel bookings?

    Yes. In addition to deals on Islip to Bulgaria flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Bulgaria?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Bulgaria.

  • Can I find deals for business class flights from Islip to Bulgaria?

    Yes. Cheapflights offers flight deals from Islip to Bulgaria by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Islip, New York to Bulgaria?

    Currently, November is the cheapest month in which you can book a flight from Islip, New York to Bulgaria (average of $632). Flying from Islip, New York to Bulgaria in June is currently the most expensive (average of $1,187). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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