$185 Cheap Flights from Ontario (ONT) to Flagstaff (FLG)

View $185 flight on Tue, Dec 16, 2025Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Flagstaff Pulliam Field (FLG)

Cheap Flights from Ontario to Flagstaff (ONT-FLG)

Prices were available within the past 7 days and start at $185 for one-way flights and $306 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Dec 23 - Fri, Dec 26
ONT
Ontario
FLG
Flagstaff
$306 Roundtrip, found 1 day ago
$306
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Dec 23 from Ontario to Flagstaff, returning Fri, Dec 26, priced at $306 found 1 day ago
American Airlines
Tue, Dec 23 - Fri, Dec 26
ONT
Ontario
FLG
Flagstaff
$336 Roundtrip, found 1 day ago
$336
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Dec 23 from Ontario to Flagstaff, returning Fri, Dec 26, priced at $336 found 1 day ago
American Airlines
Mon, Dec 8 - Wed, Dec 10
ONT
Ontario
FLG
Flagstaff
$346 Roundtrip, found 5 days ago
$346
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Dec 8 from Ontario to Flagstaff, returning Wed, Dec 10, priced at $346 found 5 days ago
American Airlines
Sat, Dec 27 - Wed, Dec 31
ONT
Ontario
FLG
Flagstaff
$356 Roundtrip, found 1 day ago
$356
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Dec 27 from Ontario to Flagstaff, returning Wed, Dec 31, priced at $356 found 1 day ago
American Airlines
Tue, Dec 23 - Fri, Dec 26
ONT
Ontario
FLG
Flagstaff
$366 Roundtrip, found 1 day ago
$366
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Dec 23 from Ontario to Flagstaff, returning Fri, Dec 26, priced at $366 found 1 day ago
American Airlines
Tue, Mar 17 - Fri, Mar 20
ONT
Ontario
FLG
Flagstaff
$376 Roundtrip, found 5 days ago
$376
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Mar 17 from Ontario to Flagstaff, returning Fri, Mar 20, priced at $376 found 5 days ago
American Airlines
Fri, Dec 19 - Tue, Dec 23
ONT
Ontario
FLG
Flagstaff
$386 Roundtrip, found 22 hours ago
$386
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Fri, Dec 19 from Ontario to Flagstaff, returning Tue, Dec 23, priced at $386 found 22 hours ago
American Airlines
Tue, Mar 24 - Thu, Mar 26
ONT
Ontario
FLG
Flagstaff
$396 Roundtrip, found 3 days ago
$396
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Mar 24 from Ontario to Flagstaff, returning Thu, Mar 26, priced at $396 found 3 days ago
American Airlines
Sat, Dec 20 - Mon, Jan 5
ONT
Ontario
FLG
Flagstaff
$406 Roundtrip, found 6 hours ago
$406
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Dec 20 from Ontario to Flagstaff, returning Mon, Jan 5, priced at $406 found 6 hours ago
American Airlines
Sun, Jan 4 - Sat, Jan 10
ONT
Ontario
FLG
Flagstaff
$415 Roundtrip, found 5 days ago
$415
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Jan 4 from Ontario to Flagstaff, returning Sat, Jan 10, priced at $415 found 5 days ago

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Find the cheapest month to fly from Ontario (ONT) to Flagstaff (FLG)

August is typically the cheapest month to fly

From $285 - $520 per traveler.

Alternative airports near Flagstaff

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Flagstaff Pulliam Field FLG. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $396
FLG
Flagstaff Pulliam Field
CheapestClosest
Average driving time to city center9 min
Flights from $396
Flights from Ontario (ONT) to Flagstaff (FLG)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Flagstaff Pulliam Field
Airlines serving
American Airlines
Roundtrip price
$305
Distance
344 mi

Ontario to Flagstaff Flights

The cheapest times to fly from Ontario to Flagstaff

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 Flagstaff are during the month of December. You can find some of the cheapest flights from Ontario to Flagstaff with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Flagstaff

Sunday is one of the best days to book for cheap flights from Ontario to Flagstaff: 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 Flagstaff

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 Flagstaff in 2025. You can also book with separate airlines for your outbound and return journeys, from $185 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 Flagstaff 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 Flagstaff 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 Flagstaff Pulliam Field Airport (FLG) cost?
Grab a cheap one-way flight from $185 or cheap return flight from $306 from Los Angeles - Ontario Intl. Airport (ONT) to Flagstaff Pulliam Field Airport (FLG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to Flagstaff Pulliam Field Airport (FLG)?
December is the most affordable month to fly from ONT to FLG. Traveling outside of peak seasons is often the key to finding better fares.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to Flagstaff Pulliam Field Airport (FLG)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ONT to FLG flight.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Flagstaff Pulliam Field Airport (FLG)?
There aren't any daily direct flights from Los Angeles - Ontario Intl. Airport (ONT) to Flagstaff Pulliam Field Airport (FLG). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from ONT to FLG?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on various factors, including the carrier and season.*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 Flagstaff Pulliam Field Airport (FLG)?
Select a flight from Los Angeles - Ontario Intl. Airport (ONT) to Flagstaff Pulliam Field Airport (FLG) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Flagstaff Pulliam Field Airport (FLG) last-minute?
Booking your ticket from ONT to FLG just before your trip is usually more expensive. But if you're flexible with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book an ONT to FLG flight and hotel package?
You can save money by booking an ONT to FLG flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've selected your preferred flights and accommodations, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Flagstaff Pulliam Field Airport (FLG)?
Typically, you're able to cancel or reschedule your ONT to FLG flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want further details, go to our Customer Service portal.

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*Available to One Key members.