$293 Cheap Flights from Ontario (ONT) to Ithaca (ITH)

View $293 flight on Mon, Feb 16, 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Ithaca, NY (ITH-Tompkins Regional)

Cheap Flights from Ontario to Ithaca (ONT-ITH)

Prices were available within the past 7 days and start at $293 for one-way flights and $319 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Apr 14 - Tue, Apr 28
ONT
Ontario
ITH
Ithaca
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Apr 14 from Ontario to Ithaca, returning Tue, Apr 28, priced at $319 found 1 day ago
Delta
Fri, May 1 - Wed, May 13
ONT
Ontario
ITH
Ithaca
$344 Roundtrip, found 1 day ago
$344
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, May 1 from Ontario to Ithaca, returning Wed, May 13, priced at $344 found 1 day ago
Delta
Tue, Apr 21 - Fri, May 8
ONT
Ontario
ITH
Ithaca
$359 Roundtrip, found 1 day ago
$359
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Apr 21 from Ontario to Ithaca, returning Fri, May 8, priced at $359 found 1 day ago
Delta
Mon, Apr 27 - Wed, May 13
ONT
Ontario
ITH
Ithaca
$369 Roundtrip, found 1 day ago
$369
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Apr 27 from Ontario to Ithaca, returning Wed, May 13, priced at $369 found 1 day ago
Delta
Tue, Mar 3 - Tue, Mar 17
ONT
Ontario
ITH
Ithaca
$377 Roundtrip, found 22 hours ago
$377
Roundtrip
found 22 hours ago
Select Delta flight, departing Tue, Mar 3 from Ontario to Ithaca, returning Tue, Mar 17, priced at $377 found 22 hours ago
Delta
Tue, Apr 28 - Wed, May 13
ONT
Ontario
ITH
Ithaca
$384 Roundtrip, found 1 day ago
$384
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Apr 28 from Ontario to Ithaca, returning Wed, May 13, priced at $384 found 1 day ago
Delta
Fri, May 1 - Tue, May 12
ONT
Ontario
ITH
Ithaca
$394 Roundtrip, found 1 day ago
$394
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, May 1 from Ontario to Ithaca, returning Tue, May 12, priced at $394 found 1 day ago
Delta
Tue, Apr 7 - Mon, Apr 20
ONT
Ontario
ITH
Ithaca
$399 Roundtrip, found 1 day ago
$399
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Apr 7 from Ontario to Ithaca, returning Mon, Apr 20, priced at $399 found 1 day ago
Delta
Mon, Mar 9 - Tue, Mar 17
ONT
Ontario
ITH
Ithaca
$402 Roundtrip, found 22 hours ago
$402
Roundtrip
found 22 hours ago
Select Delta flight, departing Mon, Mar 9 from Ontario to Ithaca, returning Tue, Mar 17, priced at $402 found 22 hours ago
United
Sat, Apr 18 - Mon, Apr 27
ONT
Ontario
ITH
Ithaca
$459 Roundtrip, found 1 day ago
$459
Roundtrip
found 1 day ago
Select United flight, departing Sat, Apr 18 from Ontario to Ithaca, returning Mon, Apr 27, priced at $459 found 1 day ago
Flights from Ontario (ONT) to Ithaca (ITH)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Tompkins Regional
Airlines serving
Delta, United
Roundtrip price
$319
Distance
2281 mi

Ontario to Ithaca Flights

The cheapest times to fly from Ontario to Ithaca

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ontario to Ithaca are during the month of April. You can find some of the cheapest flights from Ontario to Ithaca with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Ithaca

Sunday is one of the best days to book for cheap flights from Ontario to Ithaca: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ontario to Ithaca

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ontario to Ithaca in 2025. You can also book with separate airlines for your outbound and return journeys, from $293 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ontario to Ithaca flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ontario to Ithaca airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Tompkins Regional Airport (ITH) cost?
Grab a cheap one-way flight from $293 or cheap return flight from $319 from Los Angeles - Ontario Intl. Airport (ONT) to Tompkins Regional Airport (ITH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to Tompkins Regional Airport (ITH)?
April is the most affordable month to fly from ONT to ITH. Planning your trip for the off-season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to Tompkins Regional Airport (ITH)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ONT to ITH flight.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Tompkins Regional Airport (ITH)?
Nonstop flights from Los Angeles - Ontario Intl. Airport (ONT) to Tompkins Regional Airport (ITH) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ONT to ITH?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can change depending on the time of year, carrier and other factors.*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 Tompkins Regional Airport (ITH)?
To avoid possible delays on the Los Angeles - Ontario Intl. Airport (ONT) to Tompkins Regional Airport (ITH) route, aim to fly before 3 PM. Flights after this time are 22% more likely to be canceled.**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 Tompkins Regional Airport (ITH) last-minute?
Holding off until just before your departure to book a ticket from ONT to ITH generally means paying more. While it's possible to find some last-minute discounts, they're not always guaranteed. Allow some flexibility in your schedule for the best chance of snagging a bargain.
Is it cheaper to book an ONT to ITH flight and hotel package?
Opting for an ONT to ITH flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our extensive range of stays and then add car rentals, flights and activities 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 Tompkins Regional Airport (ITH)?
In most instances, you can modify or cancel your ONT to ITH flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you need more details, visit our Customer Service portal.

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*Available to One Key members.