Cheap Flights from Ontario International to Rochester

Compare Ontario International to Rochester flight deals

Find the cheapest month or even day of the year to fly to Rochester

Book the best Rochester fare with no extra fees

Find the cheapest month to fly from Ontario International to Rochester

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Rochester flights are currently cheapest in October.

Ontario International to Rochester: Alternative routes

Compare routes from Ontario International to Rochester below. You may find an airport to fly into that's cheaper, faster, or easier than Rochester.

Ontario to Rochester: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 460
Cheapest month to flyOctober

Finding cheap flights from Ontario International to Rochester: Frequently asked questions

The best price we found for a return flight from Ontario International to Rochester is ر.ق.‏ 987. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Ontario International to Rochester. But we found flights with one or more stops from ر.ق.‏ 987.
As of August 2025, there are no flights flying from Ontario International to Rochester.
The cheapest month to fly from Ontario International to Rochester is usually January.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Rochester Airport on Monday, 26 January 2026.
No airlines currently offer direct flights between Ontario International Airport and Rochester Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Rochester but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Rochester is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Southwest Airlines offers the cheapest flight tickets to Rochester.

Travelling from Ontario International Airport (ONT) to Greater Rochester International Airport (ROC): what you need to know

  • Arrive at the airport on time so you don't miss your ONT to ROC flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • Flying during a peak month like August? Public holidays and other popular seasons can result in longer queues at security. Play things extra safe and arrive up to four hours ahead of international flights and two hours before domestic departures.

  • We make it simple to book a flight with a stopover. To see all your options for tickets from Ontario International Airport to Greater Rochester International Airport, deselect 'Direct flights only.' Then, pick a flight that has a stop long enough to explore the city of your choice. Some great stopovers between ONT and ROC include:

    • Harry Reid Airport (formerly McCarran Airport)

    • Hartsfield-Jackson Atlanta International Airport

    • Chicago Midway International Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Greater Rochester International Airport (ROC)

  • ر.ق.‏ 460 is the lowest price for a one-way Ontario International Airport to Greater Rochester International Airport flight. A return flight starts from ر.ق.‏ 987. These fares can change based on availability and demand.

  • To score cheap tickets from ONT to ROC, book early. Airlines typically offer their most competitively priced fares when flights are first made available.

  • Finding cheap flights from Ontario International Airport to Greater Rochester International Airport is easier if you're flexible with your trip dates. Use the 'Whole month' function to see the best prices across the month and score a great deal.

  • Save time searching for cheap flights from ONT to ROC by creating a Price Alert. You'll get an email or notification through the app when a new low fare is offered.

  • Select your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Ontario International Airport to Greater Rochester International Airport.

Handy information about Ontario International Airport (ONT)

  • ONT's address is 2900 E. Airport Drive.

  • 83.6% of flights departing from Ontario International Airport land at their destination on time. Given its strong on-time performance, disruptions are unlikely when setting off from ONT.

  • Ontario International Airport is around 6 kilometres from central Ontario. If you're ride-sharing, catching a cab or driving from the centre, it'll take 10 minutes or so to get there, depending on the traffic.

  • Planning to catch public transport? Expect a trip time of around 1 hour 30 minutes.

  • Looking for a handy hotel near ONT? If you've booked an early flight from Ontario International Airport to Greater Rochester International Airport, these accommodation options will have you moments from check-in:

Arriving at Greater Rochester International Airport (ROC)

Getting from Greater Rochester International Airport (ROC) to central Rochester

  • The address for ROC is 1200 Brooks Avenue.

  • Greater Rochester International Airport is approximately 13 kilometres from the centre of Rochester. Driving there takes about 15 minutes.

  • Getting there on public transport typically takes 1 hour 35 minutes.

When to fly to Greater Rochester International Airport (ROC)

  • It's time to plan your trip dates for your flight from Ontario International Airport to Greater Rochester International Airport. August is the most popular month to head to Rochester. If you'd like a more relaxed vibe, go in April.

  • Book your flight from Ontario International Airport to Greater Rochester International Airport for July if you'd like to go to Rochester during its warmest month. You can expect temperatures of between 15ºC and 28ºC.

  • Search for cheap tickets from ONT to ROC in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between -11ºC and 3ºC on average.

Explore more of United States

  • Rochester has loads to offer, but there are so many other parts of United States waiting to be discovered. About 402 kilometres south-east of Rochester, a trip to New York will keep you busy. Start with leading attractions like Statue of Liberty, Central Park and Empire State Building.

  • Philadelphia is another favourite destination in United States and is around 418 kilometres south-east of Rochester. No journey is complete without a visit to Liberty Bell, Independence Hall and Philadelphia Museum of Art.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.