$185 Cheap Flights from Ontario (ONT) to Islip (ISP)

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to MacArthur Airport (ISP)

Cheap Flights from Ontario to Islip (ONT-ISP)

Prices were available within the past 7 days and start at $185 for one-way flights and $386 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Southwest Airlines
Southwest Airlines
Southwest Airlines
Southwest Airlines
Southwest Airlines
Southwest Airlines
Southwest Airlines
Southwest Airlines
JetBlue Airways

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to MacArthur Airport (ISP) cost?
Grab a cheap one-way flight from $185 or cheap return flight from $386 from Los Angeles - Ontario Intl. Airport (ONT) to MacArthur Airport (ISP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to MacArthur Airport (ISP)?
The cheapest month to fly from ONT to ISP is November, when there's less demand. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to MacArthur Airport (ISP)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from ONT to ISP. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to MacArthur Airport (ISP)?
You'll have to take a flight with a layover when traveling from Los Angeles - Ontario Intl. Airport (ONT) to MacArthur Airport (ISP). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from ONT to ISP?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to MacArthur Airport (ISP)?
To touch down at MacArthur Airport (ISP) on schedule, select a flight that leaves from Los Angeles - Ontario Intl. Airport (ONT) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Los Angeles - Ontario Intl. Airport (ONT) to MacArthur Airport (ISP) last-minute?
Last-minute fares from ONT to ISP are typically more expensive. To secure the best prices, start searching for flights as soon as possible. That being said, if you're flexible with your travel dates, it's possible to find a cheap ticket just before your departure.
Is it cheaper to book an ONT to ISP flight and hotel package?
Booking an ONT to ISP flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Select from our extensive range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to MacArthur Airport (ISP)?
Typically, you're able to cancel or reschedule your ONT to ISP flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want further information, go to our Customer Service portal.

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
MacArthur
Airlines serving
Southwest Airlines
Roundtrip price
$385
Distance
2458 mi

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