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Cheap Flights from Ontario International (ONT) to Redmond (RDM)

Compare Ontario International to Redmond flight deals

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

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Flight deals from Ontario International to Redmond

Looking for a cheap last-minute deal or the best return flight from Ontario International to Redmond? Find the lowest prices on one-way and return tickets right here.
Redmond.£192 per passenger.Departing Tue, 24 Mar, returning Fri, 27 Mar.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Tue, 24 Mar, arriving in Redmond.Inbound indirect flight with United, departs from Redmond on Fri, 27 Mar, arriving in Ontario International.Price includes taxes and charges.From £192, select.
Redmond.£203 per passenger.Departing Wed, 3 Jun, returning Sat, 6 Jun.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Wed, 3 Jun, arriving in Redmond.Inbound indirect flight with Alaska Airlines, departs from Redmond on Sat, 6 Jun, arriving in Ontario International.Price includes taxes and charges.From £203, select.
Redmond.£240 per passenger.Departing Tue, 31 Mar, returning Sat, 4 Apr.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Tue, 31 Mar, arriving in Redmond.Inbound indirect flight with United, departs from Redmond on Sat, 4 Apr, arriving in Ontario International.Price includes taxes and charges.From £240, select.
Redmond.£245 per passenger.Departing Mon, 6 Jul, returning Sun, 12 Jul.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Mon, 6 Jul, arriving in Redmond.Inbound indirect flight with Alaska Airlines, departs from Redmond on Sun, 12 Jul, arriving in Ontario International.Price includes taxes and charges.From £245, select.
Redmond.£352 per passenger.Departing Sat, 28 Feb, returning Fri, 6 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Sat, 28 Feb, arriving in Redmond.Inbound indirect flight with Delta, departs from Redmond on Fri, 6 Mar, arriving in Ontario International.Price includes taxes and charges.From £352, select.

Find the cheapest month to fly from Ontario International to Redmond

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Redmond flights are currently cheapest in March.
Feb
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Mar
from £192
Apr
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May
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Jun
from £203
Jul
from £245
Aug
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Sep
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Oct
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Nov
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Dec
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Jan
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Ontario International to Redmond: Alternative routes

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

Redmond

2 miles from central Redmond
ClosestCheapest
from £192
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Ontario to Redmond: Flight information

The things to know before you go.
Cheapest flight found£192
Cheapest month to flyMarch

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

The best price we found for a return flight from Ontario International to Redmond is £192. 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 Redmond. But we found flights with one or more stops from £192.
As of February 2026, there are no flights flying from Ontario International to Redmond.
The cheapest month to fly from Ontario International to Redmond is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Redmond Airport on Tuesday, 24 March 2026.
No airlines currently offer direct flights between Ontario International Airport and Redmond 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 Redmond 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 Redmond is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Redmond.

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

  • Your ONT to RDM flight won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Be prepared for longer queues during popular months such as August. Arriving up to four hours in advance for an international flight and two hours for a domestic departure is a smart move.

  • Think about adding a stopover when booking your ticket from Ontario International Airport to Roberts Field Airport. Just uncheck 'Direct flights only' to break up your trip, or visit a new city along the way. Check out these options between ONT and RDM:

    • San Francisco International Airport

    • Salt Lake City International Airport

    • Seattle-Tacoma International Airport

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

  • Right now, £154 is the cheapest price we've found for a one-way Ontario International Airport to Roberts Field Airport flight. The best price for a return plane ticket is £192. Bear in mind that fares could change due to demand at the time of booking.

  • To pick up cheap tickets from ONT to RDM, book early. Airlines generally offer their most competitively priced fares when flights are first released.

  • If you're flexible with your travel plans, use the 'Whole month' search function. It'll give you the lowest price across each month when searching for a flight from Ontario International Airport to Roberts Field Airport.

  • You don't need to check every day to see if fares have dropped when you create a Price Alert. We'll send you an update the moment the price changes on cheap flights from ONT to RDM.

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

Handy information about Ontario International Airport (ONT)

  • You'll find ONT at 2900 E. Airport Drive.

  • 83.6% of flights departing from Ontario International Airport arrive at their destination according to schedule. Given its strong on-time performance, you're unlikely to be delayed when setting off from ONT.

  • Ontario International Airport is about 4 miles from central Ontario. If you're driving, catching a cab or ride-sharing from the centre, it'll take 10 minutes or so to arrive, depending on the traffic.

  • The journey on public transport takes about 1 hour 30 minutes.

  • Taking an early flight from Ontario International Airport to Roberts Field Airport? Avoid the hassle of rushing to the airport (and sneak in some extra snooze time) by choosing one of these stays close to ONT:

Arriving at Roberts Field Airport (RDM)

  • The last thing you want is a long journey to your hotel if you're arriving on a late Ontario International Airport to Roberts Field Airport flight. Book one of these accommodation options near RDM instead:

  • Get your adventure underway by picking up a Roberts Field Airport rental car. Grab a set of wheels from Avis, Budget or Hertz and explore beyond Redmond's main sights.

  • Secure the lowest price by reserving your ride from Roberts Field Airport around one week before your trip.

Getting from Roberts Field Airport (RDM) to central Redmond

  • Roberts Field Airport to central Redmond has a drive time of about 10 minutes. It's approximately 2 miles away.

  • It'll take around 50 minutes if you're travelling on public transport.

When to fly to Roberts Field Airport (RDM)

  • The quietest month for a flight from Ontario International Airport to Roberts Field Airport is May, while July is the most popular. Pick the best time to go to Redmond based on whether you prefer a more fast-paced or easygoing experience.

  • The warmest month in Redmond is July, with temperatures ranging between 10ºC (50ºF) and 32ºC (90ºF). Book your flights from Ontario International Airport to Roberts Field Airport in this month if this is the type of weather you enjoy.

  • Look for cheap tickets from ONT to RDM in December if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between -10ºC (14ºF) and 8ºC (46ºF) on average.

Explore more of United States

  • Redmond has plenty to offer, but there are so many other parts of United States just waiting to be discovered. Around 240 miles north of Redmond, a trip to Seattle will keep you on the go. Don't miss top attractions like Greyhound: Bus Station, LMN Architects and Boeing Radiation Effects Lab.

  • Around 110 miles north-west of Redmond, Portland is another favourite stop in United States. No visit is complete without checking out Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

Plan the rest of your trip from Ontario to Redmond

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