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Cheap Flights from Ontario International to Phoenix

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      Travellers and cabin class, 1 Adult, Economy

      Compare Ontario International to Phoenix flight deals

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

      Book the best Phoenix fare with no extra fees

      Flight deals from Ontario International to Phoenix

      Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Phoenix? If you want to travel next month, return fares start from Rs32,575. Find the lowest prices on one-way and return tickets right here.
      Phoenix.Rs16,214 per passenger.Departing Wed, 4 Nov.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 4 Nov, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From Rs16,214, select.
      Phoenix.Rs16,214 per passenger.Departing Wed, 30 Sep.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 30 Sep, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From Rs16,214, select.
      Phoenix.Rs16,297 per passenger.Departing Wed, 28 Oct.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 28 Oct, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From Rs16,297, select.
      Phoenix.Rs16,297 per passenger.Departing Wed, 2 Dec.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 2 Dec, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From Rs16,297, select.
      Phoenix.Rs17,895 per passenger.Departing Mon, 31 Aug.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Mon, 31 Aug, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From Rs17,895, select.
      Phoenix.Rs26,433 per passenger.Departing Tue, 28 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Tue, 28 Jul, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From Rs26,433, select.
      Phoenix.Rs27,345 per passenger.Departing Wed, 13 Jan.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 13 Jan, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From Rs27,345, select.
      Phoenix.Rs27,345 per passenger.Departing Tue, 9 Feb.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Tue, 9 Feb, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From Rs27,345, select.
      Phoenix.Rs32,978 per passenger.Departing Fri, 5 Mar.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Fri, 5 Mar, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From Rs32,978, select.
      Phoenix.Rs52,910 per passenger.Departing Thu, 30 Jul.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Thu, 30 Jul, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From Rs52,910, select.

      Find the cheapest month to fly from Ontario International to Phoenix

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Phoenix flights are currently cheapest in September.
      Jul
      from Rs26,433
      Aug
      from Rs17,895
      Sep
      from Rs16,214
      Oct
      from Rs16,297
      Nov
      from Rs16,214
      Dec
      from Rs16,297
      Jan
      from Rs27,345
      Feb
      from Rs27,345
      Mar
      from Rs32,978
      Apr
      Find prices
      May
      Find prices
      Jun
      Find prices

      Direct flights from Ontario International to Phoenix

      Alternative Ontario International to Phoenix routes

      Looking for the cheapest, fastest or easiest route from Ontario International to Phoenix? You could fly into the following airports instead.

      Phoenix Sky Harbor

      6km from central Phoenix
      ClosestCheapest
      from Rs16,214
      Search flights

      Phoenix Scottsdale Municipal

      24km from central Phoenix
      Search flights

      Phoenix-Deer Valley

      27km from central Phoenix
      Search flights

      Phoenix-Mesa Gateway

      42km from central Phoenix
      from Rs32,032
      Search flights

      Ontario to Phoenix: Flight information

      The things to know before you go.
      Cheapest flight foundRs16,208
      Cheapest month to flySeptember
      Average flight time1 hr, 20 mins
      Most popular airlineSouthwest Airlines
      Average flights per week90

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

      There are 4 airports in Phoenix: Phoenix Sky Harbor, Phoenix Scottsdale Municipal, Phoenix-Deer Valley, and Phoenix-Mesa Gateway.
      The best price we found for a return flight from Ontario International to Phoenix is Rs32,415. 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.
      1 hour and 20 minutes is the average flight time from Ontario International to Phoenix.
      Southwest Airlines, American Airlines and British Airways fly direct from Ontario International to Phoenix.
      As of July 2026, there are 90 flights per week flying from Ontario International to Phoenix.
      The cheapest month to fly from Ontario International to Phoenix is usually December.
      If you're flying from Ontario International Airport, the cheapest airport near Phoenix is Phoenix Sky Harbor – which is 6.0 km away from the centre of Phoenix. We've found flights into this airport from Rs32,415.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Phoenix on Saturday, 12 December 2026.
      Yes – the average flight time is 1 hour and 20 minutes.
      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 Phoenix 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 Phoenix is around 40 days in advance, so don’t leave your flight to the last minute.

      In July, the average temperature is usually around 33°C. July is typically the warmest month in Phoenix, when it usually averages around 40°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 4°C. The rainiest month is August.
      Currently, Southwest Airlines offers the cheapest flight tickets to Phoenix.

      Travelling from Ontario International Airport (ONT) to Phoenix: what you need to know

      • Hop on a direct flight from Ontario International Airport to Phoenix and you'll be in the air for around 1 hour 15 minutes.

      • The timezone in Phoenix is UTC-7. The city is one hour ahead of Ontario, where Ontario International Airport is located.

      • Ontario International Airport (ONT) to Phoenix Sky Harbour International Airport (PHX) is the most popular route, with 55 weekly departures to pick from. If you have things to do before heading off, the last flight from ONT to PHX is with Southwest Airlines at 20:50. Go for the first departure operated by Southwest Airlines at 05:15 if you want to get on your way earlier.

      • For a relaxed start to your ONT to Phoenix flight, leave plenty of time for things like baggage drop and finding your gate. Arriving two hours before international departures and an hour before domestic flights is the standard rule.

      • During popular months like July, it's a good idea to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead for an international flight whenever you're flying during peak periods in general.

      • Start your trip at ONT and travel straight to Phoenix Sky Harbour International Airport (PHX). That will be your arrival point when searching for Ontario International Airport to Phoenix tickets.

      • American Airlines is a popular carrier that offers direct flights from Ontario International Airport to Phoenix.

      • Located around 5 kilometres from the centre of Ontario, ONT can be reached in about 15 minutes by car (depending on traffic). The journey on public transport takes roughly 45 minutes.

      • Planning to catch an early flight from Ontario International Airport to Phoenix? Avoid the stress of rushing to the airport (and sneak in some extra precious sleep) by choosing one of these stays near ONT:

      • Ontario International Airport scores high marks for on-time performance. 83% of flights that take off from ONT reach their destination without delay.

      • The address for ONT is 2900 E. Airport Drive.

      How to find the cheapest flights from Ontario International Airport (ONT) to Phoenix

      • Rs16,214 is currently the lowest price for a one-way Ontario International Airport to Phoenix flight. A return plane ticket starts from Rs32,429. These prices may change depending on demand and availability.

      • Booking early is often the key to scoring a cheap flight from ONT to Phoenix. Prices tend to rise as demand increases, so the nearer your departure date, the more you'll likely spend.

      • Finding cheap tickets from Ontario International Airport to Phoenix is more likely if you're flexible with your dates. Use the 'Whole month' tool to get the best prices across every month and bag an epic deal.

      • There's no need to keep looking every day to find out if fares have dropped when you set up a Price Alert. We'll update you the moment there's an updated deal for cheap flights from ONT to Phoenix.

      • Tailor your trip with filters. Pick your preferred arrival and departure times, total journey duration and airlines. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' flights from Ontario International Airport to Phoenix.

      Airports in Phoenix

      Phoenix Sky Harbour International Airport (PHX)

      • The distance from Phoenix Sky Harbour International Airport (PHX) to central Phoenix is roughly 5 kilometres. It'll take you about 10 minutes to reach the centre driving.

      • If you're using public transport, expect a journey time of about 25 minutes.

      • If you're arriving on a late flight from Ontario International Airport to Phoenix, few things beat the convenience of staying near the terminal. Grab your bags from the carousel and then be showered and resting soon after at one of these accommodation options near PHX:

      • For the best deal, reserve your vehicle from Phoenix Sky Harbour International Airport around one week in advance of your flight from ONT to Phoenix.

      • The street address for PHX is 3400 Sky Harbour Boulevard.

      Phoenix-Mesa Gateway Airport (AZA)

      • Phoenix-Mesa Gateway Airport (AZA) is roughly 32 kilometres from the centre of Phoenix. After your flight from Ontario International Airport to Phoenix, it'll take you around 30 minutes to get to the heart of the city in a taxi or ride-share.

      • If you travel by public transport, you'll reach the centre in 1 hour 15 minutes or so.

      • After stepping off your ONT to Phoenix flight, tuck yourself in at a hotel near AZA. These are some great accommodation options that'll help you get into relaxation mode:

      • Get exactly what you want. Securing your ride from AZA two weeks ahead of time often means more savings and a wider choice of vehicles.

      • Phoenix-Mesa Gateway Airport can be found at 6033 S. Sossaman Rd..

      Best time to go to Phoenix

      • March is the busiest month for flights from Ontario International Airport to Phoenix. To escape the crowds, visit Phoenix in October.

      • Lock in a Ontario International Airport to Phoenix plane ticket with a departure in July if you're eager to experience the city during its warmest month. You can expect temperatures to range from 27ºC to 45ºC.

      • Search for cheap tickets from ONT to Phoenix in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 4ºC and 21ºC on average.

      More about Phoenix

      Explore more of the United States

      • San Diego is just one of the many cities in the United States waiting to be discovered once you've taken in the sights of Phoenix. Around 483 kilometres away to the west, popular attractions include San Diego Zoo, San Diego Balboa Park and USS Midway Museum.

      • Las Vegas is another essential stop in the United States and is around 418 kilometres northwest of Phoenix. No trip is complete without a visit to Ciudad del Pecado o Las Vegas, Las Vegas Strip and Fountains of Bellagio.

      Plan the rest of your trip from Ontario to Phoenix

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.