Cheap flights from Islip to Pittsburgh
Cheapest current fares: $272 in August 2026 on connecting flights.
Cheapest month-by-month fares
Lowest available fare per calendar month from Islip (ISP) to Pittsburgh (PIT). Refreshed daily.
Islip (ISP) → Pittsburgh (PIT)
- August 2026 $272
Frequently asked questions
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What is the cheapest month to fly from Islip to Pittsburgh?
Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Islip (ISP) to Pittsburgh (PIT), with fares starting from $272.
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What is the lowest current fare from ISP to PIT?
The lowest currently-listed fare from Islip (ISP) to Pittsburgh (PIT) is $272 on 2026-08-17.
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Is there a direct flight from Islip to Pittsburgh?
There is currently no non-stop service from ISP to PIT. Most travellers connect through a hub airport. See our route page for current stopover options.
Related guides for this route
Sibling pages — full route detail, airport overviews, visa context, per-airline routes.