Cheap Flights to Ontario: Ontario Flight Deals

View €314 flight on Mon, 27 Apr 2026Opens in a new window

Popular airlines to Ontario

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Cheap round-trip flights to Ontario

Prices were available within the past 7 days and start at €314 for one-way flights and €455 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, 3 Feb - Tue, 10 Feb
LHR
London
ONT
Ontario
€455 Return, found 4 days ago
€455
Return
found 4 days ago
Select British Airways flight, departing Tue, 3 Feb from London to Ontario, returning Tue, 10 Feb, priced at €455 found 4 days ago
American Airlines
Thu, 5 Feb - Wed, 11 Feb
VNO
Vilnius
ONT
Ontario
€562 Return, found 2 days ago
€562
Return
found 2 days ago
Select American Airlines flight, departing Thu, 5 Feb from Vilnius to Ontario, returning Wed, 11 Feb, priced at €562 found 2 days ago
Aer Lingus
Fri, 23 Jan - Mon, 26 Jan
DUB
Dublin
SNA
Orange County
€569 Return, found 1 day ago
€569
Return
found 1 day ago
Select Aer Lingus flight, departing Fri, 23 Jan from Dublin to Orange County, returning Mon, 26 Jan, priced at €569 found 1 day ago
Iberia
Tue, 7 Apr - Tue, 14 Apr
DUB
Dublin
ONT
Ontario
€580 Return, found 5 days ago
€580
Return
found 5 days ago
Select Iberia flight, departing Tue, 7 Apr from Dublin to Ontario, returning Tue, 14 Apr, priced at €580 found 5 days ago
Lufthansa
Thu, 15 Jan - Tue, 20 Jan
DUB
Dublin
SNA
Orange County
€585 Return, found 6 days ago
€585
Return
found 6 days ago
Select Lufthansa flight, departing Thu, 15 Jan from Dublin to Orange County, returning Tue, 20 Jan, priced at €585 found 6 days ago

Find the cheapest month to fly from Columbus (CMH) to Ontario (ONT)

August is typically the cheapest month to fly

From €171 - €621 per traveller.

Expedia.ie is an online travel company that specialises in securing the best prices for flights to Ontario. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to Ontario. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to Ontario, or are just on the lookout for the best flights to Ontario, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in Ontario to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Frequently asked questions

What is the name of Ontario's airport?
Ontario is served by more than one airport, but most visitors choose to touch down at John Wayne Airport (SNA).
How far is John Wayne Airport (SNA) from central Ontario?
SNA is 48 kilometres from downtown Ontario, so expect a bit of a commute into the city centre.
What airport is best to fly into Ontario?
With a range of airports in one place, travellers are spoiled when flying into Ontario. If you touchdown at SNA, you'll be 48 kilometres from the downtown area. There's also Los Angeles - Ontario Intl. Airport (ONT) (5 kilometres away) and LGB (56 kilometres away).
How many airlines fly to Ontario?
Ontario is serviced by 16 air carriers from at least 46 worldwide airports.
Which airlines fly to Ontario?
Southwest Airlines, American Airlines and Frontier Airlines fly the most frequently to Ontario. The majority of flights begin in Phoenix, with Southwest Airlines having the most services on this route.
How many nonstop flights are there to Ontario?
Organising an amazing Ontario getaway is easy when there are 1,614 nonstop flights each week to choose from.
Where are the most popular flights to Ontario departing from?
Travellers often depart from Phoenix, Las Vegas and Denver airports when going to Ontario.
How long is the flight to Ontario Airport?
If it's Phoenix you're departing, you'll be airborne for around 1 hour and 24 minutes before you touchdown in Ontario. Runway to runway from Las Vegas takes around 1 hour and 11 minutes and from Denver, the average flight time is 2 hours and 33 minutes.
How to book the cheapest flight to Ontario?
We've all come across those lucky jet-setters who manage to score wonderfully cheap plane tickets every time they fly. Would you like to know how to do it for your Ontario holiday? Don't wait until the last possible moment to lock in your flight. Another excellent way to score an unbeatable deal is to compare all options. If your destination has more than one airport, be sure to research the cost of flying into a smaller terminal. Last but not least, another simple way to save some cash is be ready to book fast. If you stumble on an amazing deal, don't think twice — snap it up while you can.
Do you have any tips for my flight to Ontario?
If you're poorly prepared, air travel can be daunting. But there's no need to worry. Follow these handy hints and enjoy a comfortable start to your time in Ontario. What to pack in your hand luggage:

  • A plane trip can be a cruisy experience if you bring the right things. First of all you'll need toiletry items, such as deodorant, toothpaste and a toothbrush, a fresh change of clothes and a good read. Next, find a spot in your hand luggage for your phone, tablet and chargers, your important medications and maybe a blow-up neck pillow as well. Lastly, remember to take your passport, travel documents and your credit cards.

Do not pack the following items in your hand luggage:

  • While the list of restricted items can differ between airlines, the general guide to follow is nothing sharp, flammable or explosive. This includes things like screwdrivers, pocket knives, spray paint and fireworks. Sporting equipment like ski poles, and items that could injure passengers, such as firearms and ammunition, won't be allowed on board either.

What to wear on a flight:

  • Your goal here is to feel as comfortable as possible. Choose a pair of slip-on shoes, dress in loose, natural fibers and remember to bring a sweater in case you get chilly in the cabin.
  • Caused by sustained periods of immobility, deep vein thrombosis (DVT) is a blood clot condition that can affect some passengers during long-haul flights. Reduce the risks by drinking water, keeping your feet and legs moving and wearing compression tights or socks.

How to get through airport security fast when flying to Ontario?
The secret is to be organised before you arrive at airport security. That way, you'll be boarding that plane to Ontario in next to no time. Follow these tips and get your holiday off to a flying start:

  • First things first. Your travel documents and ID will need to be inspected by airport security. Have them easily accessible so you don't hold up the line.
  • The X-ray machine comes next. Empty your pockets and remove anything that is likely to beep. This includes things like headphones or earphones, as well as bulky coats or jackets. They'll need to be placed on the conveyor belt for screening.
  • All electronic gadgets, including your phone and tablet, are also required to be scanned separately.
  • Remove all liquids and gels from your carry-on bag. They often need to be sent through the X-ray machine separately. Each product should be in a container no larger than 3.4 ounces (100 millilitres) and everything must fit in a quart-size (one litre), clear zip-lock bag.
  • The right choice of footwear can save you valuable minutes. Boots and heavy shoes are often required to be removed and X-rayed separately. Slip-on sneakers are usually not.
  • Sharp items such as knives and scissors are not allowed on board. They'll be seized at security, so pack them in your checked suitcase.

Flights to Ontario information
Destination airport
Los Angeles - Ontario Intl.
Destination airport IATA code
ONT
Destination city name
Ontario
Return price
€455

Trending flights to Ontario

Prices were available within the past 7 days and start at €314 for one-way flights and €455 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sun, 8 Feb - Mon, 16 Feb
DUB
Dublin
SNA
Orange County
€525 Return, found 2 days ago
€525
Return
found 2 days ago
Select British Airways flight, departing Sun, 8 Feb from Dublin to Orange County, returning Mon, 16 Feb, priced at €525 found 2 days ago

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