Nonstop route
Baltimore to Islip nonstop
Yes — Southwest flies BWI to ISP nonstop year-round — about 5× daily.
BWIBaltimore
✈
ISPIslip
5× daily32 flights a week
Year-round32/wk Jun vs 20.3/wk Jan
$125–$300typical one-way · median $175
220miles nonstop
Affiliate disclosure
Ready to compare fares?
Fares are what people actually paid: half of the 712 tickets in the US DOT fare survey for this route sold between $125 and $300 one way, median $175. That survey runs a couple of quarters behind, so treat it as the shape of the route's pricing rather than today's quote.
Nonstop Scout may earn revenue from outbound flight-search links.