Flights from Islip to Ontario

Did you mean Flights from Ontario to Islip?

Islip

United States

ISP

Long Island Mac Arthur Airport

Ontario

United States

ONT

Ontario International Airport

Route: Published service includes stops
Distance: 2,459 miles
Marketing airlines: 1 airline
Aircraft: 1 aircraft type
Dates: Feb 11 – Mar 8, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Departure window: 2026-10-23 – 2026-11-21.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

Islip to Ontario route overview

Long Island Mac Arthur Airport (ISP) serves Islip; Ontario International Airport (ONT) serves Ontario.

The airports are 2,459 miles apart by great-circle distance.

Roame's current schedule feed lists service with stops from ISP to ONT, but no nonstop service.

Marketing airlines listed in the current schedule, including codeshare sellers, are Southwest Airlines (WN). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Feb 11 – Mar 8, 2027.

Marketing airlines on the Islip to Ontario route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Aircraft flying from ISP to ONT

Frequently asked questions

Which airports serve the Islip to Ontario route?

Long Island Mac Arthur Airport (ISP) is the origin airport and Ontario International Airport (ONT) is the destination airport.

How far is Ontario from Islip?

ISP and ONT are approximately 2,459 miles apart by great-circle distance.

Are there direct flights from ISP to ONT?

No. Roame's current schedule feed lists service with stops from ISP to ONT, but no nonstop service.

Which airlines market flights from ISP to ONT?

Which aircraft fly from ISP to ONT?

Aircraft listed in the current schedule include Boeing 737-800 Winglets (73H).