FLG - ONT

$685 Find Cheap Flights from Flagstaff to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$685
Typical prices: $305-$509
American Airlines
Sun 11/25Thu 11/29
FLG - ONT • 1 stop
Cheapest one-way
$689
Typical prices: $367-$385
Alaska Airlines
Tue 12/25
FLG - ONT • 2 stops
When to travel
February
Cheapest • 14% price drop
January
Most popular
Good to know
+1
Good to know
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Cheap Flights from Flagstaff to Ontario (FLG-ONT)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Flagstaff to Ontario

Wed, Nov 25 - Sun, Nov 29
American Airlines Logo
7:15 pm - 9:52 pmFLG  Flagstaff Pulliam-ONT Ontario
3h 37m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:20 am - 12:09 pmONT  Ontario-FLG Flagstaff Pulliam
4h 49m1 stop Phoenix Sky Harbor Intl
$685American Airlines
Wed, Nov 25 - Sun, Nov 29
American Airlines Logo
12:40 pm - 3:35 pmFLG  Flagstaff Pulliam-ONT Ontario
3h 55m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:20 am - 12:09 pmONT  Ontario-FLG Flagstaff Pulliam
4h 49m1 stop Phoenix Sky Harbor Intl
$685American Airlines
Wed, Nov 25 - Sun, Nov 29
American Airlines Logo
7:15 pm - 9:52 pmFLG  Flagstaff Pulliam-ONT Ontario
3h 37m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:20 am - 12:09 pmONT  Ontario-FLG Flagstaff Pulliam
4h 49m1 stop Phoenix Sky Harbor Intl
$806American Airlines
Booking Insights

Price, demand and travel trends for Flagstaff to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Flagstaff to Ontario?

Round-trip flights from Flagstaff to Ontario typically range from $305 to $509. The lowest price found in the past 5 days was $685, on American Airlines.

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Key details for Flagstaff to Ontario flights

Cheapest flight

$685
The most popular month to fly with an average 20% increase in travelers.
Round-trip flight from Flagstaff to Ontario

When to book flights from Flagstaff to Ontario

Are your dates flexible? Find out the best times to travel from Flagstaff to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Flagstaff to Ontario flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Flagstaff to Ontario?

    Only Economy Class is available on flights from Flagstaff to Ontario.

  • Do I need a passport to fly from Flagstaff to Ontario?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Flagstaff to Ontario flight?

    Round-trip flights from Flagstaff to Ontario range from $305 to $509, with an average of $355 over the past 12 months. Anything below $305 counts as a good deal.

  • Have flight prices from Flagstaff to Ontario changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $685 to $806. That means the highest observed fare was about 17% higher than the lowest one.

  • How are flight prices from Flagstaff to Ontario looking right now?

    One-way fares from Flagstaff to Ontario are currently higher than usual. Average one-way flight prices are about $689, which is 87% above the typical average for this route.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

  • Which airports can I use when flying from Flagstaff to Ontario?

    Flights from Flagstaff to Ontario usually depart from Flagstaff Pulliam (FLG) and arrive at Ontario (ONT).

  • Which airports do connecting flights from Flagstaff to Ontario pass through?

    Most connecting flights from Flagstaff to Ontario pass through Phoenix Sky Harbor Intl (PHX), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Flagstaff to Ontario?

    Yes. Flexible dates can save you up to 61% on flights from Flagstaff to Ontario. Friday is the cheapest departure day at $305 round-trip on average, while Sunday is the most expensive at $774, a difference of $469.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Your guide to booking Flagstaff to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Sunday. On this route, Friday flights average $305, about $469 less than Sunday fares (61% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Flagstaff to Ontario trip for February. Fares historically average $305 round-trip in that month - typically $469 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

    • Ontario Airport Inn
    • Azure Hotel & Suites, Trademark Collection by Wyndham
    • La Quinta Inn & Suites by Wyndham Ontario Airport

More options for your flight from Flagstaff to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario