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$311+ 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
ITH — ONT
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$449
(United Airlines)

One-way from

$311
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$448
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. 13% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sat 10/410:28 amITH - ONT
2 stops12h 56mUnited Airlines
Tue 10/76:36 pmONT - ITH
2 stops12h 04mUnited Airlines
Deal found 9/16$449
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/110:28 amITH - ONT
2 stops15h 24mUnited Airlines
Sun 10/56:27 pmONT - ITH
2 stops12h 13mUnited Airlines
Deal found 9/16$524
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 12/37:57 pmITH - ONT
2 stops19h 20mUnited Airlines
Tue 12/165:05 amONT - ITH
2 stops10h 33mUnited Airlines
Deal found 9/17$542
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 10/26:10 amITH - ONT
2 stops14h 30mUnited Airlines
Mon 10/66:27 pmONT - ITH
2 stops12h 13mUnited Airlines
Deal found 9/17$682
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 11/267:40 pmITH - ONT
2 stops19h 52mUnited Airlines
Sun 11/309:35 pmONT - ITH
2 stops47h 08mUnited Airlines
Deal found 9/15$1,067

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 September 17, 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

Sat 10/4

10:28 am-8:24 pm

2 stops12h 56m

Ontario

Tue 10/7

6:36 pm-9:40 am

2 stops12h 04m

$449

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Wed 10/1

10:28 am-10:52 pm

2 stops15h 24m

Ontario

Sun 10/5

6:27 pm-9:40 am

2 stops12h 13m

$524

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Wed 12/3

7:57 pm-12:17 pm

2 stops19h 20m

Ontario

Tue 12/16

5:05 am-6:38 pm

2 stops10h 33m

$542

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Thu 10/2

6:10 am-5:40 pm

2 stops14h 30m

Ontario

Mon 10/6

6:27 pm-9:40 am

2 stops12h 13m

$682

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Sun 2/15

5:55 am-9:14 pm

2 stops18h 19m

Ontario

Sun 2/22

10:30 pm-11:21 pm

2 stops21h 51m

$771

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Fri 2/13

7:50 pm-10:57 pm

2 stops30h 07m

Ontario

Sat 2/21

6:00 am-11:30 pm

2 stops14h 30m

$786

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Sat 2/14

2:00 pm-11:38 am

2 stops24h 38m

Ontario

Sun 2/22

10:30 pm-11:21 pm

2 stops21h 51m

$804

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Sat 2/14

5:55 am-9:14 pm

2 stops18h 19m

Ontario

Sat 2/21

10:30 pm-1:19 pm

2 stops11h 49m

$818

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Sun 2/15

5:55 am-9:14 pm

2 stops18h 19m

Ontario

Sat 2/21

10:30 pm-1:19 pm

2 stops11h 49m

$818

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Fri 2/13

5:55 am-11:38 am

2 stops32h 43m

Ontario

Sun 2/22

10:30 pm-11:21 pm

2 stops21h 51m

$834

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 18 results
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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, August is the cheapest month in which you can book a flight from Ithaca to Ontario (average of $246). Flying from Ithaca to Ontario in March is currently the most expensive (average of $327). 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 12h 56m. United Airlines provides one of the quickest options available for as low as $449. The distance from Ithaca to Ontario is about 2281 mi.

  • 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, August is the cheapest month in which you can book a flight from Ithaca to Ontario (average of $246). Flying from Ithaca to Ontario in March is currently the most expensive (average of $327). 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.

See more FAQs

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