Cheap Flights from Redmond to Ontario International

Compare Redmond to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals from Redmond to Ontario International

Looking for a cheap last-minute deal or the best return flight from Redmond Airport to Ontario International Airport? If you want to travel next month, return fares start from Rs71,882. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Redmond to Ontario International

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

Redmond to Ontario: Flight information

The things to know before you go.
Cheapest flight foundRs29,843
Cheapest month to flyJune

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

The best price we found for a return flight from Redmond to Ontario International is Rs71,654. 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 Redmond to Ontario International. But we found flights with one or more stops from Rs71,654.
As of May 2026, there are no flights flying from Redmond to Ontario International.
The cheapest month to fly from Redmond to Ontario International is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Redmond Airport to Ontario International Airport on Friday, 29 May 2026.
No airlines currently offer direct flights between Redmond Airport and Ontario International 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 Ontario International 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 Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Ontario International.

Flying from Roberts Field Airport (RDM) to Ontario International Airport (ONT): what you need to know

  • Redmond and Ontario share the UTC-7 timezone. This means you won't have to adjust your watch after you land.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Show up at the airport on time to board your RDM to ONT flight.

  • During popular months like July, you'll want to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead for an international flight whenever you're travelling during a high season in general.

  • If you want to include a stop along the way, simply deselect 'Direct flights only' when searching for your ticket from Roberts Field Airport to Ontario International Airport. These are the most popular stopovers between RDM and ONT:

    • Phoenix Sky Harbour International Airport

    • Seattle-Tacoma International Airport

    • San Francisco International Airport

How to find the cheapest flights from Roberts Field Airport (RDM) to Ontario International Airport (ONT)

  • Currently, Rs29,843 is the lowest price we've found for a one-way Roberts Field Airport to Ontario International Airport flight. The best price for a return plane ticket is Rs71,654. Remember that fares can change due to demand at the time of booking.

  • To score cheap tickets from RDM to ONT, book ahead. Airlines generally offer their best fares when flights are first released.

  • Finding cheap flights from Roberts Field Airport to Ontario International Airport is more likely if you can be flexible with your dates. Use the 'Whole month' search function to see the lowest prices throughout the month and bag a great deal.

  • Snapping up cheap flights from RDM to ONT couldn't be easier with Price Alerts. Simply create one of these automatic alerts and we'll let you know when a new deal comes up.

  • Secure the ideal flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Roberts Field Airport to Ontario International Airport, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Roberts Field Airport (RDM)

  • 76.41% of flights leaving from Roberts Field Airport make it to their destination on time.

  • To get to Roberts Field Airport from central Redmond, it'll take about 10 minutes if you're going by car. Of course, this depends on traffic conditions. It's approximately 3 kilometres from the airport to the city centre.

  • The trip when using public transport usually takes 50 minutes.

  • Get your travels off to a relaxed start by staying near RDM. Whether you're taking an early flight from Roberts Field Airport to Ontario International Airport or just don't like being rushed, these hotels are perfect:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • ONT is located at 2900 E. Airport Drive.

  • From Ontario International Airport, Ontario is approximately 6 kilometres away. It takes around 10 minutes to get to the centre driving.

  • Getting there by public transport takes about 1 hour 30 minutes.

When to fly to Ontario International Airport (ONT)

  • The quietest month for a flight from Roberts Field Airport to Ontario International Airport is May, while August is the most popular. Pick the best time to go to Ontario based on whether you prefer a more relaxed vibe or a faster pace.

  • The warmest month in Ontario is August, with the temperature ranging between 15ºC and 35ºC. Book your flights from Roberts Field Airport to Ontario International Airport in this month if this is the type of weather you enjoy.

  • Search for cheap tickets from RDM to ONT in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between 4ºC and 23ºC on average.

Explore more of United States

  • Ontario has plenty to offer, but there are so many other parts of United States you'll want to see. About 56 kilometres west of Ontario, a visit to Los Angeles will keep you busy. Start with leading sights like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Around 153 kilometres south of Ontario, San Diego is another essential stop in United States. Start your sightseeing at San Diego Zoo, USS Midway Museum and SeaWorld San Diego.

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