Beginning of main content
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5

Search over 321,000 hotels worldwide and 400 airlines worldwide.

Secure incredible value with Expedia's Price Guarantee.

No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheap PDX to ONT Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Orange County

$149.60

Long Beach

$136.40

Los Angeles

$136.40

Burbank

$114.90

Cheap PDX to ONT Flights

Question : Have you considered flying into John Wayne Airport instead of Ontario International Airport?
Answer : Ontario International Airport is a great airport, but there is a cheaper option – John Wayne Airport. It’s just 30 miles away and flights are being booked 16% cheaper over the coming two months.

Question : How long does it take to get from PDX to ONT?
Answer : If you're able to take the fastest direct flight (which is offered by Alaska Airlines), you will be able to leave PDX at 6:35 AM PST and get to ONT at 8:45 AM PST (two hours and 10 minutes).

Question : Which airline is offering the cheapest flight from PDX to ONT?
Answer : Alaska Airlines is your best bet for finding that coveted low fare. They're offering fares as low as $106, while prices for other flights are as high as $851.

Question : How often are flights late from Portland International Airport (PDX) to Ontario International Airport (ONT)?
Answer : The Portland to Ontario route has an 81% on-time rate, ranking in the top half of the world in getting their passengers to their destinations on schedule. When there is a delay, it averages less than half an hour.

Question : What's the likelihood of you being delayed on this route?
Answer : The best measurement of overall promptness combines both on-time percentage and total delay minutes. PDX to ONT currently has 4 stars out of 5, earning it one of the best performances in the world. You can fly worry-free on this route.

Question : Which airline has been the most dependable in getting passengers to their destination on time?
Answer : The current leader is Alaska Airlines with a 100% on-time rate. Stick to Alaska Airlines and you won't spend more time in airports than you have to. Perfection is hard to come by, so hopefully it continues.

Question : Is the price you found a good deal?
Answer : Flight prices change more than the majority of routes in the United States for PDX to ONT. They vary from $106 to $851. The further out you book a route, the more likely you are to save.

Portland to Los Angeles Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Portland to Los Angeles will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Los Angeles.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with PDX to ONT flights that won’t make your bank account wince. Ready to temporarily leave behind Portland for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to ONT with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.