FLG - ONT

$251 Find Cheap Flights from Flagstaff to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Flagstaff to Ontario departing on 6/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Flagstaff to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Flagstaff to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$376
American Airlines
Thu 4/23Sun 4/26
FLG - ONT • 1 stop
Cheapest one-way
$251
American Airlines
Sat 6/6
FLG - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Flagstaff and Ontario. You'll need at least 1 connection.
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We hope you love your trip to Ontario!
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Flight Deals

Cheap Flights from Flagstaff to Ontario (FLG-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Flagstaff to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Flagstaff to Ontario

Thu, Apr 23 - Sun, Apr 26
American Airlines Logo
5:01 pm - 9:59 pm
FLG
-
ONT
4h 58m
1 stop
American Airlines Logo
7:35 pm - 10:57 pm
ONT
-
FLG
3h 22m
1 stop
$376American Airlines
Fri, Apr 24 - Tue, Apr 28
American Airlines Logo
5:01 pm - 9:59 pm
FLG
-
ONT
4h 58m
1 stop
American Airlines Logo
12:19 pm - 4:31 pm
ONT
-
FLG
4h 12m
1 stop
$406American Airlines
Tue, Apr 21 - Sat, Apr 25
American Airlines Logo
11:41 am - 4:22 pm
FLG
-
ONT
4h 41m
1 stop
American Airlines Logo
12:19 pm - 4:31 pm
ONT
-
FLG
4h 12m
1 stop
$456American Airlines
Fri, May 29 - Sat, Jun 6
American Airlines Logo
6:27 pm - 9:57 pm
FLG
-
ONT
3h 30m
1 stop
American Airlines Logo
6:10 am - 9:55 am
ONT
-
FLG
3h 45m
1 stop
$466American Airlines
Fri, May 29 - Sun, Jun 7
American Airlines Logo
6:27 pm - 9:57 pm
FLG
-
ONT
3h 30m
1 stop
American Airlines Logo
1:10 pm - 5:50 pm
ONT
-
FLG
4h 40m
1 stop
$496American Airlines
Mon, Jun 1 - Thu, Jun 4
American Airlines Logo
1:48 pm - 6:22 pm
FLG
-
ONT
4h 34m
1 stop
American Airlines Logo
6:10 am - 9:55 am
ONT
-
FLG
3h 45m
1 stop
$506American Airlines
Sat, May 30 - Sat, Jun 6
American Airlines Logo
6:50 am - 12:05 pm
FLG
-
ONT
5h 15m
1 stop
American Airlines Logo
6:10 am - 11:13 am
ONT
-
FLG
5h 03m
1 stop
$516American Airlines
Fri, May 29 - Mon, Jun 1
American Airlines Logo
6:27 pm - 9:57 pm
FLG
-
ONT
3h 30m
1 stop
American Airlines Logo
6:10 am - 11:13 am
ONT
-
FLG
5h 03m
1 stop
$521American Airlines
Sun, May 31 - Sat, Jun 6
American Airlines Logo
6:27 pm - 9:57 pm
FLG
-
ONT
3h 30m
1 stop
American Airlines Logo
6:10 am - 11:13 am
ONT
-
FLG
5h 03m
1 stop
$536American Airlines
Sat, May 30 - Sun, Jun 7
American Airlines Logo
6:50 am - 12:05 pm
FLG
-
ONT
5h 15m
1 stop
American Airlines Logo
1:10 pm - 5:50 pm
ONT
-
FLG
4h 40m
1 stop
$546American Airlines
Booking Insights

Good to know

Low seasonAugust
Cheapest flight$251
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 24% lower on average.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Flagstaff to Ontario

  • What is the cheapest flight from Flagstaff to Ontario?

    In the last 3 days, the lowest price for a flight from Flagstaff to Ontario was $251 for a one-way ticket and $376 for a round-trip.

  • Do I need a passport to fly between Flagstaff and Ontario?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Flagstaff to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Flagstaff to Ontario?

    oneworld is the only airline alliance operating flights between Flagstaff and Ontario.

  • How does KAYAK find such low prices on flights from Flagstaff to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Flagstaff to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Flagstaff to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Flagstaff is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Flagstaff to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Flagstaff with another airline. Booking your flights between Flagstaff and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Flagstaff to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Flagstaff up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Flagstaff to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Flagstaff to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Flagstaff to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11560 reviews
7.5Boarding
6.4Food
7.9Crew
6.9Entertainment
7.2Comfort
Airline reviews

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

4.0 OkayJohn, Apr 2026
DCA - LAX
Read more American Airlines reviews

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Delayed for mechanical and no updates on what was happening and how long the delay might be.

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Everything you need to know for your flight from Flagstaff to Ontario

Information on your arrival and departure airports

Flagstaff (FLG)
Ontario (ONT)