HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ithaca

$323+ Cheap flights from Ontario to Ithaca (ONT - ITH)

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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ITH
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Ithaca with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Ithaca

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Ithaca (ITH). 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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$363
(Delta)

One-way from

$323
(Delta)

Popular in

May

Cheapest in

September

Average price

$618
Provider with most accurate pricing for Los Angeles-Ithaca Tompkins County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Ithaca Tompkins County flights.
Search Deals
From Ontario to Ithaca Tompkins County
Search Deals
One-way flight from Ontario to Ithaca Tompkins County
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($110 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Ontario to Ithaca

Cheapest flights from Ontario to Ithaca
Explore the most affordable flight options available from Ontario to Ithaca. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This United Airlines deal was found by Cheapflights users on 11/24. 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 12/35:05 amONT - ITH
2 stops10h 33mUnited Airlines
Wed 12/107:57 pmITH - ONT
2 stops19h 21mUnited Airlines
Deal found 11/24$677
This United Airlines deal was found by Cheapflights users on 11/25. 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 12/106:00 amONT - ITH
2 stops9h 38mUnited Airlines
Sun 12/146:10 amITH - ONT
2 stops9h 22mUnited Airlines
Deal found 11/25$798
This United Airlines deal was found by Cheapflights users on 11/24. 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 11/265:05 amONT - ITH
2 stops10h 23mUnited Airlines
Mon 12/17:40 pmITH - ONT
2 stops19h 37mUnited Airlines
Deal found 11/24$928
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Fri 11/285:05 amONT - ITH
2 stops10h 23mUnited Airlines
Sun 11/307:40 pmITH - ONT
2 stops30h 11mUnited Airlines
Deal found 11/25$1,048

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Ithaca 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 November 26, 2025.
Use the filters below to find and compare flights from Ontario to Ithaca that are best for you.

Fly from

Ontario

Fly to

Ithaca

Route

Depart

Return

Price

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Wed 1/28

10:30 pm-1:56 pm

2 stops12h 26m

Ithaca Tompkins County

Sat 1/31

2:36 pm-10:44 pm

2 stops35h 08m

$363

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Sun 1/11

10:30 pm-1:56 pm

2 stops12h 26m

Ithaca Tompkins County

Sat 1/24

5:25 am-9:05 pm

2 stops18h 40m

$417

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Sun 1/11

10:30 pm-1:56 pm

2 stops12h 26m

Ithaca Tompkins County

Wed 1/21

5:29 am-9:05 pm

2 stops18h 36m

$417

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Wed 1/14

10:30 pm-1:56 pm

2 stops12h 26m

Ithaca Tompkins County

Wed 1/21

5:29 am-9:05 pm

2 stops18h 36m

$452

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Wed 1/14

10:30 pm-1:56 pm

2 stops12h 26m

Ithaca Tompkins County

Fri 1/23

5:29 am-9:05 pm

2 stops18h 36m

$452

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Wed 1/14

10:30 pm-1:56 pm

2 stops12h 26m

Ithaca Tompkins County

Sat 1/24

5:25 am-9:05 pm

2 stops18h 40m

$452

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Mon 1/12

10:30 pm-1:56 pm

2 stops12h 26m

Ithaca Tompkins County

Fri 1/23

5:29 am-9:05 pm

2 stops18h 36m

$462

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Mon 1/12

10:30 pm-1:56 pm

2 stops12h 26m

Ithaca Tompkins County

Wed 1/21

5:29 am-9:05 pm

2 stops18h 36m

$462

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Mon 1/12

10:30 pm-1:56 pm

2 stops12h 26m

Ithaca Tompkins County

Sat 1/24

5:25 am-9:05 pm

2 stops18h 40m

$462

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Sun 1/11

10:30 pm-1:56 pm

2 stops12h 26m

Ithaca Tompkins County

Thu 1/22

5:29 am-9:05 pm

2 stops18h 36m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Ontario to Ithaca

Have a flexible travel schedule? Discover the best time to fly to Ithaca from Ontario 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 Ontario to Ithaca

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Ithaca (average of $160). Flying from Ontario to Ithaca in December is currently the most expensive (average of $294). 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 Ontario to Ithaca. 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 Ontario to Ithaca?

    There are many flights that can get you from Ontario to Ithaca in 12h 26m. Fly via Delta to get the fastest option. The distance between Ontario and Ithaca is about 2281 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Ithaca 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 Ontario to Ithaca?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Ithaca (average of $160). Flying from Ontario to Ithaca in December is currently the most expensive (average of $294). 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

Traveling to a place near Ithaca?

Book flights to Ithaca if you plan to visit one of these locations
Cortland

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Ithaca

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
Los Angeles to Newark flights
San Francisco to John F Kennedy Intl flights
Los Angeles to LaGuardia flights
San Francisco to Newark flights
San Francisco to LaGuardia flights
Ontario to John F Kennedy Intl flights
San Diego to John F Kennedy Intl flights
Burbank to LaGuardia flights
Ontario to Newark flights
San Diego to Newark flights
Santa Ana to John F Kennedy Intl flights
Las Vegas to John F Kennedy Intl flights
Santa Ana to LaGuardia flights
Ontario to LaGuardia flights
Las Vegas to Newark flights
San Diego to LaGuardia flights
Santa Ana to Newark flights
San Jose to John F Kennedy Intl flights
Burbank to John F Kennedy Intl flights
San Jose to Newark flights
Sacramento to Newark flights
Burbank to Newark flights
San Jose to LaGuardia flights
Las Vegas to LaGuardia flights
Sacramento to John F Kennedy Intl flights
Oakland to Newark flights
Oakland to John F Kennedy Intl flights
Los Angeles to White Plains flights
Sacramento to LaGuardia flights
Long Beach to John F Kennedy Intl flights
San Francisco to White Plains flights
Los Angeles to Buffalo flights
Los Angeles to Islip flights
Palm Springs to John F Kennedy Intl flights
Fresno to John F Kennedy Intl flights
Fresno to LaGuardia flights
Fresno to Newark flights
Palm Springs to Newark flights
Long Beach to Newark flights
Reno to Newark flights
San Francisco to Buffalo flights
Reno to John F Kennedy Intl flights
Palm Springs to LaGuardia flights
Oakland to LaGuardia flights
Los Angeles to Albany flights
Reno to LaGuardia flights
San Diego to White Plains flights
San Francisco to Rochester flights
San Jose to White Plains flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.