Cheap Flights to Ontario

View AU$115 flight on Sat, 21 Feb 2026Opens in a new window

Popular airlines to Ontario

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Cheap Tickets to Ontario

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, 21 Feb - Sat, 28 Feb
SFO
San Francisco
BOI
Boise
AU$229 Return, found 2 days ago
AU$229
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat, 21 Feb from San Francisco to Boise, returning Sat, 28 Feb, priced at AU$229 found 2 days ago
Delta
Sat, 17 Jan - Sun, 18 Jan
LAX
Los Angeles
BOI
Boise
AU$260 Return, found 1 day ago
AU$260
Return
found 1 day ago
Select Delta flight, departing Sat, 17 Jan from Los Angeles to Boise, returning Sun, 18 Jan, priced at AU$260 found 1 day ago
American Airlines
Tue, 13 Jan - Wed, 21 Jan
LAX
Los Angeles
BOI
Boise
AU$304 Return, found 6 days ago
AU$304
Return
found 6 days ago
Select American Airlines flight, departing Tue, 13 Jan from Los Angeles to Boise, returning Wed, 21 Jan, priced at AU$304 found 6 days ago
Hawaiian Airlines
Wed, 24 Dec - Wed, 7 Jan
SFO
San Francisco
BOI
Boise
AU$333 Return, found 3 days ago
AU$333
Return
found 3 days ago
Select Hawaiian Airlines flight, departing Wed, 24 Dec from San Francisco to Boise, returning Wed, 7 Jan, priced at AU$333 found 3 days ago
United
Sat, 17 Jan - Sun, 18 Jan
LAX
Los Angeles
BOI
Boise
AU$368 Return, found 1 day ago
AU$368
Return
found 1 day ago
Select United flight, departing Sat, 17 Jan from Los Angeles to Boise, returning Sun, 18 Jan, priced at AU$368 found 1 day ago

Find the cheapest month to fly from Columbus (CMH) to Boise (BOI)

September is typically the cheapest month to fly

From AU$324 - AU$892 per traveller.

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Ontario Flights

Have the time of your life in Ontario

Flying to Ontario is now easier than ever when you use Expedia to book your trip. We’ve got an extensive catalogue of Ontario flight deals, giving you the greatest number of options to choose from. Whether you prefer to fly on weekdays or weekends, in the morning or at night, a quick search on Expedia.com.au will help you find cheap tickets to Ontario in seconds. We even make it simple for you to stick with a certain airline if you’re trying to rack up frequent flyer points.

Tips for flying and packing light

If it’s been a while since you’ve travelled, you might be due for a refresher when it comes to flying. That’s where our helpful blog, Out There Starts Here, comes in. Wondering whether to pack for fine dining or more casual eats? Or whether you really need to bring a jacket? Written by seasoned travel experts, the articles on our blog provide you with the latest details about certain destinations, so you know just what to expect. Check out some of our recent articles for the smartest ways to see the sights.

Fly for less when you bundle airfare and accommodation

Our already low airfares are even more affordable when you bundle your flights with a stay at one of the hotels in Ontario. By booking all of your travel plans with us, you’ll save time and money, and enjoy the convenience of having all of your arrangements in one place.

Get the power of planning in the palm of your hand

Booking your trip to Ontario, Oregon has never been easier than when you use our mobile app to plan your dream getaway. The Expedia App is available on both Android and iOS, allowing you to reserve flights and hotels at any time of day, no matter what kind of phone you use. You’ll also get exclusive offers, receive flight updates, and can earn extra points. Wherever you are, the Expedia App helps you get where you want to be.

Join the Expedia Rewards Program

If you enjoy the finer things in life, sign up for our rewards program to receive exclusive benefits when you book with us. Expedia Rewards opens the door to member-only deals, +VIP Access hotel benefits, and earning Expedia Rewards points, that you can redeem your way. You’ll also get access to Unreal Deals that could save you the price of a plane ticket to Ontario when bundled with your accommodation.

What are you waiting for?

Expedia.com.au helps you find cheap flights to Ontario AU$229. So why wait another second to begin planning your trip? Start your search right now, and you could be boarding the next Ontario-bound flight. Bon voyage!

Frequently asked questions

What is the name of Ontario's airport?
Ontario has one main airport, Boise Airport (BOI).
What airport is best to fly into Ontario?
A flight to Ontario means hitting the tarmac at Boise Airport (BOI). Hop off the plane, grab your baggage and you'll be 80 kilometres from the downtown streets.
How many airlines fly to Ontario?
There are 7 air carriers that fly into Ontario from 24 airports across the globe.
Which airlines fly to Ontario?
Alaska Airlines and Delta frequently fly into Ontario. Catching an Alaska Airlines flight from Seattle is one of the most popular ways to get there.
How many nonstop flights are there to Ontario?
With 515 nonstop flights running each week, you'll be arriving in Ontario before you can ask, "Are we there yet?"
Where are the most popular flights to Ontario departing from?
Flights to Ontario from Seattle, Denver and Phoenix airports are in high demand.
How long is the flight to Ontario Airport?
If it's Seattle you're leaving behind, you'll be in the sky for around 1 hour and 25 minutes before you touchdown in Ontario. Tarmac to tarmac from Denver typically takes 2 hours and 8 minutes and from Phoenix, it's 2 hours and 18 minutes.
How to book the cheapest flight to Ontario?
Don't leave booking your flight to Ontario until the last possible moment. That's one move frequent travellers use to get the best prices. Booking in advance means more choices and less expensive flights. Another great way to score a bargain is to shop around. If where you're headed has a few airports, research the cost of flying into a less busy terminal. Lastly, be prepared to lock in your seat quickly if you stumble on a real bargain. It might not be available for long! With a bit of know-how and a little good fortune, the perfect airfare will be yours.
Do you have any tips for my flight to Ontario?
We've rounded up all the info you need to make your flight as pain-free as possible. Follow our insider tips and you'll be breezing through the airport and discovering Ontario in no time at all. What to pack in your hand luggage:

  • A plane trip can be a comfortable experience if you pack the right things. First things first, you'll need toiletry items, such as deodorant and a toothbrush, a clean set of clothes and a few magazines. Next, find a spot in your carry-on bag for your phone and charger, any daily medications and perhaps a blow-up neck pillow as well. Lastly, don't forget to take your passport, travel documents and your bank cards.

Do not pack the following items in your hand luggage:

  • Double-check that you don't have sharp objects (like a knife or scissors) hiding in one of the zippers of your hand luggage. Other banned items include explosive or flammable products, such as fuel and matches, and gels and liquids in containers with a capacity of more than 3.4 ounces (100 millilitres).

What to wear on a flight:

  • Comfort should be your main concern when choosing what to wear on your flight. Loose, breathable clothing is a sensible option, as are flat, closed-toe shoes.
  • Caused by sustained periods of immobility, deep vein thrombosis (DVT) is a blood clot condition that can affect passengers on long-distance flights. Lower your risks by staying hydrated, keeping your legs and feet moving and wearing compression socks to help your circulation.

How to get through airport security fast when flying to Ontario?
It's all about being organised. We've compiled some handy tips and tricks for a fuss-free trip through security. Look out Ontario, here you come:

  • First things first. Your boarding pass and passport will need to be inspected by airport security. Have them close by so you don't have to dig around for them.
  • The X-ray machine comes next. Remove anything on you that is likely to set off the alarm. This includes items like earphones or headphones, as well as heavy jackets or coats. They'll all need to go on the X-ray conveyor belt.
  • Your electronic devices like laptops and phones will also have to go on a tray to be scanned. Don't worry, you'll be back online before you know it.
  • Any gels or liquids, such as lip balm or cologne, that you want to take on board need to be in containers no larger than 3.4 ounces (100 millilitres). Also, everything must fit inside a quart-size (one litre), zip-lock bag.
  • The right choice of footwear can save you several precious minutes. Hiking or heavy-style boots are often required to be removed and separately scanned. Slip-on sneakers are usually not.
  • Sharp items such as knives and scissors are not allowed in the cabin. They'll be confiscated at security, so pack them safely away in your checked luggage.

Flights to Ontario information
Destination airport
Boise
Destination airport IATA code
BOI
Destination city name
Boise
Return price
AU$228

Trending flights to Ontario

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 12 Mar - Mon, 23 Mar
BNE
Brisbane
BOI
Boise
AU$1,166 Return, found 1 day ago
AU$1,166
Return
found 1 day ago
Select American Airlines flight, departing Thu, 12 Mar from Brisbane to Boise, returning Mon, 23 Mar, priced at AU$1,166 found 1 day ago

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