411 € Cheap Flights from Walla Walla to Ontario International

Compare Walla Walla 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 Walla Walla to Ontario International

Looking for a cheap last-minute deal or the best return flight from Walla Walla Airport to Ontario International Airport? If you want to travel next month, return fares start from 411 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Walla Walla to Ontario International

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

Walla Walla to Ontario: Flight information

The things to know before you go.
Cheapest flight found411 €
Cheapest month to flyAugust

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

The best price we found for a return flight from Walla Walla to Ontario International is 411 €. 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 Walla Walla to Ontario International. But we found flights with one or more stops from 411 €.
As of July 2026, there are no flights flying from Walla Walla to Ontario International.
The cheapest month to fly from Walla Walla to Ontario International is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Walla Walla Airport to Ontario International Airport on Tuesday, 18 August 2026.
No airlines currently offer direct flights between Walla Walla 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, Alaska Airlines offers the cheapest flight tickets to Ontario International.

Flying from Walla Walla Airport (ALW) to Ontario International Airport (ONT): what you need to know

  • Ontario's timezone is UTC-8, which is the same as Walla Walla.

  • To ensure you get on your ALW to ONT flight, allow plenty of time to check in and find your gate. Arriving two hours ahead of international departures and an hour before domestic flights is the general travel rule.

  • Travelling during a peak month such as August? School holidays and other high seasons can mean longer queues at security. Play it safe and get there up to four hours ahead of an international flight and two hours before a domestic departure.

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

  • At the moment, 466 € is the lowest price we've seen for a one-way Walla Walla Airport to Ontario International Airport flight. The best price for a return ticket is 411 €. Keep in mind that fares could change due to availability at the time of booking.

  • It's usually best to book ahead of time if you want to get cheap tickets from ALW to ONT. That's because airlines adjust prices based on demand, which tends to rise closer to departure.

  • If you can be flexible with your trip dates, try using the 'Whole month' search function. It'll show you the cheapest price in each month when searching for your flight from Walla Walla Airport to Ontario International Airport.

  • You won't have to check back in every day to find out if fares have gone down when you create a Price Alert. We'll let you know the moment there's a better deal on cheap flights from ALW to ONT.

  • Find the right flight for you with the help of the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Walla Walla Airport to Ontario International Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and journey duration.

Handy information about Walla Walla Airport (ALW)

  • 83% of flights departing from Walla Walla Airport land at their destination as planned. With its strong on-time stats, you're unlikely to face delays when setting off from ALW.

  • Walla Walla Airport is around 8 kilometres from central Walla Walla. If you're catching a taxi, ride-sharing or driving from the centre, it'll take you 10 minutes or so to get there, depending on the traffic.

  • Planning to catch public transport? Expect a journey time of around 30 minutes.

  • Searching for a convenient hotel near ALW? If you're catching an early flight from Walla Walla Airport to Ontario International Airport, these stays will have you moments from check-in:

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 10 kilometres away. It takes around 15 minutes to get to the centre driving.

  • Getting to the centre by public transport will take you roughly 45 minutes.

When to fly to Ontario International Airport (ONT)

  • July is the most popular month for flights from Walla Walla Airport to Ontario International Airport. For smaller crowds, travel to Ontario in March.

  • Book your flight from Walla Walla Airport to Ontario International Airport for August if you'd like to visit Ontario during its warmest month. You can expect temperatures of between 16ºC (61ºF) and 36ºC (97ºF).

  • Search for cheap tickets from ALW to ONT in February if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 4ºC (39ºF) and 24ºC (75ºF) on average.

Explore more of the United States

  • Ontario is always a good idea, but there are so many other parts of the United States waiting to be explored. Around 56 kilometres west of Ontario, a visit to Los Angeles will keep your itinerary packed. Start with popular sights like Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

  • Around 153 kilometres south of Ontario, San Diego is another essential stop in the United States. Get a taste of what this destination has to offer at San Diego Zoo, San Diego Balboa Park and USS Midway Museum.

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