Cheap Flights from Santa Ana John Wayne (SNA) to Ontario International (ONT)

Compare Santa Ana John Wayne 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

Compare flight deals from Santa Ana John Wayne to Ontario International from £74

Looking for a cheap last-minute deal or the best return flight from Santa Ana John Wayne to Ontario International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Santa Ana John Wayne to Ontario International

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

Santa Ana to Ontario: Flight information

The things to know before you go.
Cheapest flight found£74
Cheapest month to flyMay

Finding cheap flights from Santa Ana John Wayne to Ontario International: Frequently asked questions

The best price we found for a return flight from Santa Ana John Wayne to Ontario International is £146. 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 Santa Ana John Wayne to Ontario International. But we found flights with one or more stops from £146.
As of April 2026, there are no flights flying from Santa Ana John Wayne to Ontario International.
The cheapest month to fly from Santa Ana John Wayne to Ontario International is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Santa Ana John Wayne Airport to Ontario International Airport on Friday, 26 June 2026.
No airlines currently offer direct flights between Santa Ana John Wayne 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, Spirit Airlines offers the cheapest flight tickets to Ontario International.

Travelling from John Wayne Airport (SNA) to Ontario International Airport (ONT): what you need to know

  • Santa Ana and Ontario are in the UTC-7 timezone. This means you won't have to adjust your watch after you land.

  • To ensure you catch your SNA to ONT flight, leave plenty of time for things like check-in and baggage drop. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • During popular months such as July, you'll want to get to the airport earlier than normal. Arrive two hours before a domestic departure and four hours ahead of international flights when you travel during a high season in general.

  • If you want to split up your journey, just uncheck 'Direct flights only' when searching for your ticket from John Wayne Airport to Ontario International Airport. These are the top stopovers between SNA and ONT:

    • Harry Reid Airport (formerly McCarran Airport)

    • Norman Y. Mineta San Jose International Airport

    • Phoenix Sky Harbour International Airport

How to find the cheapest flights from John Wayne Airport (SNA) to Ontario International Airport (ONT)

  • At the moment, £74 is the lowest price we've found for a one-way John Wayne Airport to Ontario International Airport flight. The best price for a return ticket is £147. Keep in mind that fares can change due to demand at the time of booking.

  • It's usually smart to book in advance if you want to find cheap tickets from SNA to ONT. That's because airlines adjust prices based on demand, which tends to rise closer to departure.

  • If you're willing to be flexible with your trip dates, try using the 'Whole month' tool. It'll give you the cheapest price across every month when searching for a flight from John Wayne Airport to Ontario International Airport.

  • You don't need to check back in every day to find out if fares have gone down when you set up a Price Alert. We'll send you an update the moment there's a new deal on cheap flights from SNA to ONT.

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

Handy information about John Wayne Airport (SNA)

  • SNA's address is 18601 Airport Way.

  • John Wayne Airport scores top marks for on-time performance. 81.53% of flights that depart SNA arrive at their destination on time.

  • To reach John Wayne Airport from central Santa Ana, it'll take about 15 minutes by car. Of course, this depends on traffic. It's approximately 5 miles from the airport to the city centre.

  • Taking public transport? Expect a journey time of around 1 hour 5 minutes.

  • Get your travels off to a leisurely start by staying near SNA. Whether you're boarding an early flight from John Wayne 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

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

  • From Ontario International Airport, Ontario is approximately 4 miles away. It takes around 10 minutes to reach the centre by car.

  • It takes roughly 1 hour 30 minutes if you're travelling by public transport.

When to fly to Ontario International Airport (ONT)

  • August is the busiest month for flights from John Wayne Airport to Ontario International Airport. To skip the crowds, go to Ontario in May.

  • When reserving your flight from John Wayne Airport to Ontario International Airport, think about the type of weather you like. August is the warmest month in Ontario, with temperatures ranging from 15ºC (59ºF) to 35ºC (95ºF).

  • Search for cheap tickets from SNA to ONT in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 23ºC (73ºF) on average.

Explore more of United States

  • Los Angeles is just one of the many cities in United States waiting to be discovered after you've seen Ontario. Around 35 miles away to the west, its best attractions include Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Around 95 miles south of Ontario, San Diego is another essential stop in United States. No visit is complete without checking out 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.