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$349+ Cheap flights from Ithaca to Ontario (ITH - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
ITH — ONT
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Ithaca to Ontario

Cheapest flights from Ithaca to Ontario
Explore the most affordable flight options available from Ithaca to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This United Airlines deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:00 amITH - ONT
2 stops9h 38mUnited Airlines
Fri 12/266:04 amONT - ITH
2 stops14h 40mUnited Airlines
Deal found 12/22$1,802

Find flight deals from Ithaca to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Ithaca (ITH) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$387
(Delta)

One-way from

$349
(United Airlines)

Popular in

June

Cheapest in

August

Average price

$718
Provider with most accurate pricing for Ithaca Tompkins County-Ontario flight deals.
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Provider most trusted by Cheapflights users for Ithaca Tompkins County-Ontario flights.
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From Ithaca Tompkins County to Ontario
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One-way flight from Ithaca Tompkins County to Ontario
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Highest demand for flights based on searches. 10% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ithaca to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Ithaca to Ontario that are best for you.

Fly from

Ithaca

Fly to

Ontario

Route

Depart

Return

Price

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Wed 2/11

5:29 am-9:05 pm

2 stops18h 36m

Ontario

Tue 2/17

10:20 pm-2:23 pm

2 stops13h 03m

$387

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Wed 2/11

5:29 am-9:05 pm

2 stops18h 36m

Ontario

Wed 2/18

10:20 pm-2:23 pm

2 stops13h 03m

$387

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Tue 1/27

6:00 am-12:47 pm

2 stops9h 47m

Ontario

Sat 1/31

6:00 am-11:44 pm

2 stops14h 44m

$439

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Wed 1/14

6:00 am-12:47 pm

2 stops9h 47m

Ontario

Wed 1/28

6:00 am-11:44 pm

2 stops14h 44m

$469

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Thu 1/29

7:45 pm-11:18 am

2 stops18h 33m

Ontario

Sat 2/7

5:05 am-6:41 pm

2 stops10h 36m

$613

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Thu 4/2

10:30 am-8:36 pm

2 stops13h 06m

Ontario

Tue 4/14

7:00 am-11:59 pm

2 stops13h 59m

$648

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Wed 1/21

6:00 am-5:43 pm

2 stops14h 43m

$349

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Thu 1/15

6:00 am-12:47 pm

2 stops9h 47m

$444

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Wed 1/7

5:29 am-4:12 pm

2 stops13h 43m

$462

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Fri 1/9

5:29 am-4:12 pm

2 stops13h 43m

$462

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 12 results
1
2
  • Most accurate provider: When it comes to deals on Ithaca-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ithaca-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ithaca-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ithaca-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ithaca-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ithaca to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Ithaca with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ithaca to Ontario

What is the cheapest month to book a flight from Ithaca to Ontario?

Currently, April is the cheapest month in which you can book a flight from Ithaca to Ontario (average of $139). Flying from Ithaca to Ontario in June is currently the most expensive (average of $270). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Ithaca to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ithaca to Ontario?

    A quick flight from Ithaca to Ontario can take about 9h 47m. Delta provides one of the quickest options available for as low as $439. The distance from Ithaca to Ontario is about 2281 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Ithaca to Ontario that include hotel bookings?

    Yes. In addition to deals on Ithaca to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ithaca to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ithaca to Ontario.

  • Can I find deals for business class flights from Ithaca to Ontario?

    Yes. Cheapflights offers flight deals from Ithaca to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ithaca to Ontario?

    Currently, April is the cheapest month in which you can book a flight from Ithaca to Ontario (average of $139). Flying from Ithaca to Ontario in June is currently the most expensive (average of $270). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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