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102 € Cheap Flights from Ontario International to Phoenix Sky Harbor

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      Travellers and cabin class, 1 Adult, Economy

      Compare Ontario International to Phoenix Sky Harbor flight deals

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

      Book the best Phoenix Sky Harbor fare with no extra fees

      Flight deals from Ontario International to Phoenix Sky Harbor

      Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Phoenix Sky Harbor Airport? If you want to travel next month, return fares start from 102 €. Find the lowest prices on one-way and return tickets right here.
      Phoenix.102 € per passenger.Departing Tue, 3 Nov, returning Wed, 4 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Tue, 3 Nov, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Wed, 4 Nov, arriving in Ontario International.Price includes taxes and charges.From 102 €, select.
      Phoenix.102 € per passenger.Departing Tue, 25 Aug, returning Tue, 1 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Tue, 25 Aug, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Tue, 1 Sep, arriving in Ontario International.Price includes taxes and charges.From 102 €, select.
      Phoenix.102 € per passenger.Departing Sat, 12 Dec, returning Tue, 15 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Sat, 12 Dec, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Tue, 15 Dec, arriving in Ontario International.Price includes taxes and charges.From 102 €, select.
      Phoenix.102 € per passenger.Departing Thu, 1 Oct, returning Tue, 13 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Thu, 1 Oct, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Tue, 13 Oct, arriving in Ontario International.Price includes taxes and charges.From 102 €, select.
      Phoenix.102 € per passenger.Departing Thu, 26 Nov, returning Wed, 2 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Thu, 26 Nov, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Wed, 2 Dec, arriving in Ontario International.Price includes taxes and charges.From 102 €, select.
      Phoenix.102 € per passenger.Departing Tue, 27 Oct, returning Tue, 10 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Tue, 27 Oct, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Tue, 10 Nov, arriving in Ontario International.Price includes taxes and charges.From 102 €, select.
      Phoenix.102 € per passenger.Departing Wed, 19 Aug, returning Wed, 19 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 19 Aug, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Wed, 19 Aug, arriving in Ontario International.Price includes taxes and charges.From 102 €, select.
      Phoenix.102 € per passenger.Departing Thu, 3 Sep, returning Thu, 3 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Thu, 3 Sep, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Thu, 3 Sep, arriving in Ontario International.Price includes taxes and charges.From 102 €, select.
      Phoenix.102 € per passenger.Departing Wed, 23 Sep, returning Mon, 12 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 23 Sep, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Mon, 12 Oct, arriving in Ontario International.Price includes taxes and charges.From 102 €, select.
      Phoenix.114 € per passenger.Departing Mon, 17 Aug, returning Sat, 12 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Mon, 17 Aug, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Sat, 12 Dec, arriving in Ontario International.Price includes taxes and charges.From 114 €, select.
      Phoenix.137 € per passenger.Departing Wed, 14 Oct, returning Wed, 3 Feb.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 14 Oct, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Wed, 3 Feb, arriving in Ontario International.Price includes taxes and charges.From 137 €, select.
      Phoenix.154 € per passenger.Departing Sat, 5 Dec, returning Tue, 5 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Sat, 5 Dec, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Tue, 5 Jan, arriving in Ontario International.Price includes taxes and charges.From 154 €, select.
      Phoenix.154 € per passenger.Departing Tue, 10 Nov, returning Fri, 1 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Tue, 10 Nov, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Fri, 1 Jan, arriving in Ontario International.Price includes taxes and charges.From 154 €, select.
      Phoenix.172 € per passenger.Departing Tue, 26 Jan, returning Wed, 10 Feb.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Tue, 26 Jan, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Wed, 10 Feb, arriving in Ontario International.Price includes taxes and charges.From 172 €, select.
      Phoenix.183 € per passenger.Departing Fri, 8 Jan, returning Sat, 16 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Fri, 8 Jan, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Sat, 16 Jan, arriving in Ontario International.Price includes taxes and charges.From 183 €, select.
      Phoenix.183 € per passenger.Departing Sat, 13 Feb, returning Tue, 16 Feb.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Sat, 13 Feb, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Tue, 16 Feb, arriving in Ontario International.Price includes taxes and charges.From 183 €, select.

      Find the cheapest month to fly from Ontario International to Phoenix Sky Harbor

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Phoenix Sky Harbor flights are currently cheapest in August.
      Jul
      from 249 €
      Aug
      from 102 €
      Sep
      from 102 €
      Oct
      from 102 €
      Nov
      from 102 €
      Dec
      from 102 €
      Jan
      from 183 €
      Feb
      from 183 €
      Mar
      Find prices
      Apr
      Find prices
      May
      Find prices
      Jun
      Find prices

      Direct flights from Ontario International to Phoenix Sky Harbor

      Ontario International to Phoenix Sky Harbor: Alternative routes

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

      Phoenix Sky Harbor

      6km from central Phoenix
      ClosestCheapest
      from 102 €
      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 257 €
      Search flights

      Ontario to Phoenix: Flight information

      The things to know before you go.
      Cheapest flight found102 €
      Cheapest month to flyDecember
      Average flight time1 hr, 20 mins
      Most popular airlineSouthwest Airlines
      Average flights per week90

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

      The best price we found for a return flight from Ontario International to Phoenix Sky Harbor is 102 €. 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 Sky Harbor.
      Southwest Airlines, American Airlines and British Airways fly direct from Ontario International to Phoenix Sky Harbor.
      As of July 2026, there are 90 flights per week flying from Ontario International to Phoenix Sky Harbor.
      The cheapest month to fly from Ontario International to Phoenix Sky Harbor is usually December.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Phoenix Sky Harbor Airport 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 Sky Harbor 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.

      Currently, Southwest Airlines offers the cheapest flight tickets to Phoenix Sky Harbor.

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

      • Hop on a direct flight from Ontario International Airport to Phoenix Sky Harbour Airport and you'll be in the air for an average of 1 hour 20 minutes.

      • The timezone in Phoenix is UTC-7, which is one hour ahead of Ontario.

      • Flights from ONT to PHX start at 05:15 — the earliest with Southwest Airlines. The last departure is at 20:50 with Southwest Airlines. Overall, there are 49 weekly Ontario International Airport to Phoenix Sky Harbour Airport flights.

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

      • During popular months such as July, it's a good idea to get to the airport well in advance. Arrive two hours before domestic departures and four hours ahead of an international flight when you travel during peak periods in general.

      • Flying into Phoenix (and then exploring more of the United States!) is a breeze with American Airlines. This popular airline has direct flights from Ontario International Airport to Phoenix Sky Harbour Airport.

      • The airline with the highest number of bookings on this route is American Airlines.

      • American Airlines stands out as the most punctual carrier for ONT to PHX flights, with 85.46% of services arriving on schedule.

      • Consider adding a stopover when booking your ticket from Ontario International Airport to Phoenix Sky Harbour Airport. Simply uncheck 'Direct flights only' to break up your journey, or perhaps see a new city along the way. Check out these options between ONT and PHX:

        • Harry Reid International Airport

        • Sacramento International Airport

        • Oakland Metropolitan Oak Airport

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

      • The cheapest price we've found for a one-way Ontario International Airport to Phoenix Sky Harbour Airport flight is 51 €. A return ticket right now is 102 €. Depending on the availability when you book, these fares may change.

      • It's a good idea to book ahead of time if you're looking for cheap tickets from ONT to PHX. That's because flight prices are based on demand, which tends to increase closer to the date of departure.

      • May is the cheapest month for flights from Ontario International Airport to Phoenix Sky Harbour Airport. If you prefer to fly at a different time of year, the 'Whole month' tool will give you the lowest airfares across every month.

      • Finding cheap flights from ONT to PHX is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as a new discounted fare appears.

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

      Handy information about Ontario International Airport (ONT)

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

      • 83% of flights departing from Ontario International Airport touch down at their destination according to schedule. With its strong on-time performance, you're unlikely to face delays when taking off from ONT.

      • Ontario International Airport is around 10 kilometres from central Ontario. If you're catching a taxi, ride-sharing or driving from the centre, it'll take you 15 minutes or so to get there, depending on the traffic.

      • The trip on public transport will take about 45 minutes.

      • Looking for a convenient hotel close to ONT? If you're boarding an early flight from Ontario International Airport to Phoenix Sky Harbour Airport, these accommodation options will put you moments from your check-in counter:

      Arriving at Phoenix Sky Harbour Airport (PHX)

      Getting from Phoenix Sky Harbour Airport (PHX) to central Phoenix

      • The address for PHX is 3400 Sky Harbour Boulevard.

      • Phoenix Sky Harbour Airport to central Phoenix has a drive time of about 10 minutes. It's approximately 5 kilometres away.

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

      When to fly to Phoenix Sky Harbour Airport (PHX)

      • The quietest month for a flight from Ontario International Airport to Phoenix Sky Harbour Airport is March, while April is the busiest. Choose the ideal time to go to Phoenix based on whether you prefer a more relaxed vibe or a faster pace.

      • The warmest month in Phoenix is July, with temperatures ranging between 27ºC (81ºF) and 45ºC (113ºF). Book your flights from Ontario International Airport to Phoenix Sky Harbour Airport in this month if you like this kind of weather.

      • January has average temperatures of between 4ºC (39ºF) and 21ºC (70ºF). Look for cheap tickets from ONT to PHX around that time if you want to travel in cooler conditions.

      Explore more of the United States

      • San Diego is just one of the many places in the United States waiting to be explored after you've experienced Phoenix. Around 483 kilometres away to the west, top sights here include San Diego Zoo, San Diego Balboa Park and USS Midway Museum.

      • Las Vegas is another must-experience destination in the United States and is around 418 kilometres north-west of Phoenix. No journey is complete without dropping by 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.