Cheap Flights from Ontario (ONT) to Petersburg (PSG)

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Petersburg, AK (PSG)

Cheap Flights from Ontario to Petersburg (ONT-PSG)

Prices were available within the past 7 days and start at for one-way flights and $703 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sun, Dec 21 - Sun, Jan 4
ONT
Ontario
PSG
Petersburg
$703 Roundtrip, found 4 days ago
$703
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Dec 21 from Ontario to Petersburg, returning Sun, Jan 4, priced at $703 found 4 days ago
Alaska Airlines
Tue, Aug 25 - Wed, Sep 2
ONT
Ontario
PSG
Petersburg
$768 Roundtrip, found 3 days ago
$768
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Ontario to Petersburg, returning Wed, Sep 2, priced at $768 found 3 days ago
Alaska Airlines
Fri, Nov 14 - Tue, Nov 25
ONT
Ontario
PSG
Petersburg
$876 Roundtrip, found 4 days ago
$876
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Nov 14 from Ontario to Petersburg, returning Tue, Nov 25, priced at $876 found 4 days ago
Alaska Airlines
Tue, Aug 25 - Wed, Sep 2
ONT
Ontario
PSG
Petersburg
$923 Roundtrip, found 3 days ago
$923
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Ontario to Petersburg, returning Wed, Sep 2, priced at $923 found 3 days ago
Alaska Airlines
Tue, Aug 25 - Wed, Sep 2
ONT
Ontario
PSG
Petersburg
$932 Roundtrip, found 3 days ago
$932
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Ontario to Petersburg, returning Wed, Sep 2, priced at $932 found 3 days ago
Alaska Airlines
Tue, Aug 25 - Wed, Sep 2
ONT
Ontario
PSG
Petersburg
$1,320 Roundtrip, found 3 days ago
$1,320
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Ontario to Petersburg, returning Wed, Sep 2, priced at $1,320 found 3 days ago
Flights from Ontario (ONT) to Petersburg (PSG)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Petersburg
Roundtrip price
$703
Distance
1729 mi

Ontario to Petersburg Flights

The cheapest times to fly from Ontario to Petersburg

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ontario to Petersburg are during the month of December. You can find some of the cheapest flights from Ontario to Petersburg with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Petersburg

Sunday is one of the best days to book for cheap flights from Ontario to Petersburg: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ontario to Petersburg

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ontario to Petersburg in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ontario to Petersburg flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ontario to Petersburg airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Petersburg Airport (PSG) cost?
Secure a cheap one-way flight or cheap return flight from $703 from Los Angeles - Ontario Intl. Airport (ONT) to Petersburg Airport (PSG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to Petersburg Airport (PSG)?
December is the most affordable month to fly from ONT to PSG. Traveling outside of peak seasons is often the key to finding a great deal.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to Petersburg Airport (PSG)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from ONT to PSG. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Petersburg Airport (PSG)?
Direct flights from Los Angeles - Ontario Intl. Airport (ONT) to Petersburg Airport (PSG) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ONT to PSG?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on a range of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to Petersburg Airport (PSG)?
To avoid potential delays on the Los Angeles - Ontario Intl. Airport (ONT) to Petersburg Airport (PSG) route, aim to travel before 3 PM. Later departures have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Los Angeles - Ontario Intl. Airport (ONT) to Petersburg Airport (PSG) last-minute?
Last-minute bookings from ONT to PSG are typically more expensive. For the lowest prices, start looking for flights well ahead of time. That being said, if you're flexible with your travel plans, you may land a cheap fare right before your journey.
Is it cheaper to book an ONT to PSG flight and hotel package?
You'll typically save money by booking an ONT to PSG flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your preferred accommodations and flights, you can add extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Petersburg Airport (PSG)?
Typically, it's possible to cancel or reschedule your ONT to PSG flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.