ONT - FLG

$215 Find Cheap Flights from Ontario to Flagstaff

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Flagstaff departing on 4/13. 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 Flagstaff

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

Cheapest round-trip
$306
American Airlines
Mon 4/13Wed 4/15
ONT - FLG • 1 stop
Cheapest one-way
$215
American Airlines
Mon 4/13
ONT - FLG • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Ontario and Flagstaff. You'll need at least 1 connection.
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Flight Deals

Cheap Flights from Ontario to Flagstaff (ONT-FLG)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Flagstaff 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 Ontario to Flagstaff

Mon, Apr 13 - Wed, Apr 15
American Airlines Logo
7:35 pm - 10:57 pm
ONT
-
FLG
3h 22m
1 stop
American Airlines Logo
11:41 am - 4:22 pm
FLG
-
ONT
4h 41m
1 stop
$306American Airlines
Fri, Mar 13 - Tue, Mar 17
American Airlines Logo
7:59 pm - 11:07 pm
ONT
-
FLG
3h 08m
1 stop
American Airlines Logo
12:21 pm - 4:22 pm
FLG
-
ONT
4h 01m
1 stop
$356American Airlines
Tue, Mar 17 - Thu, Mar 19
American Airlines Logo
7:59 pm - 11:07 pm
ONT
-
FLG
3h 08m
1 stop
American Airlines Logo
6:00 am - 11:33 am
FLG
-
ONT
5h 33m
1 stop
$366American Airlines
Tue, Jul 21 - Tue, Jul 28
American Airlines Logo
1:10 pm - 5:44 pm
ONT
-
FLG
4h 34m
1 stop
American Airlines Logo
6:27 pm - 9:51 pm
FLG
-
ONT
3h 24m
1 stop
$396American Airlines
Mon, Mar 30 - Sat, Apr 4
American Airlines Logo
7:59 pm - 11:07 pm
ONT
-
FLG
3h 08m
1 stop
American Airlines Logo
6:00 am - 11:36 am
FLG
-
ONT
5h 36m
1 stop
$414American Airlines
Fri, Mar 13 - Wed, Mar 18
American Airlines Logo
7:59 pm - 11:07 pm
ONT
-
FLG
3h 08m
1 stop
American Airlines Logo
4:50 pm - 10:19 pm
FLG
-
ONT
5h 29m
1 stop
$416American Airlines
Sun, Mar 15 - Wed, Mar 18
American Airlines Logo
7:59 pm - 11:07 pm
ONT
-
FLG
3h 08m
1 stop
American Airlines Logo
4:50 pm - 10:19 pm
FLG
-
ONT
5h 29m
1 stop
$446American Airlines
Fri, Mar 13 - Sat, Mar 21
American Airlines Logo
7:59 pm - 11:07 pm
ONT
-
FLG
3h 08m
1 stop
American Airlines Logo
4:50 pm - 10:07 pm
FLG
-
ONT
5h 17m
1 stop
$466American Airlines
Mon, Aug 10 - Tue, Aug 18
American Airlines Logo
7:02 pm - 10:51 pm
ONT
-
FLG
3h 49m
1 stop
American Airlines Logo
6:07 pm - 9:39 pm
FLG
-
ONT
3h 32m
1 stop
$471American Airlines
Tue, Jul 7 - Tue, Jul 14
American Airlines Logo
6:15 am - 9:49 am
ONT
-
FLG
3h 34m
1 stop
American Airlines Logo
6:27 pm - 9:51 pm
FLG
-
ONT
3h 24m
1 stop
$476American Airlines
Booking Insights

Good to know

Cheapest flight$215
Flight from Ontario to Flagstaff

When to book flights from Ontario to Flagstaff

Are your dates flexible? Find out the best times to travel from Ontario to Flagstaff 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 Ontario to Flagstaff

  • What is the cheapest flight from Ontario to Flagstaff?

    In the last 3 days, the lowest price for a flight from Ontario to Flagstaff was $215 for a one-way ticket and $306 for a round-trip.

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

    No, a passport isn't needed to fly from Ontario to Flagstaff. However, local authorities might ask for an official ID.

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

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

  • Which airline alliances offer flights from Ontario to Flagstaff?

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

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

    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 Ontario to Flagstaff.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Flagstaff from Ontario 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 Ontario to Flagstaff?

    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 Flagstaff with an airline and back to Ontario with another airline. Booking your flights between Ontario and FLG 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 Ontario to Flagstaff?

    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 Flagstaff from Ontario 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 Ontario to Flagstaff

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Flagstaff. 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 Ontario to Flagstaff? 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.
7.2
American AirlinesOverall score based on 11334 reviews
6.4Food
7.5Boarding
8.0Crew
7.2Comfort
6.9Entertainment
Airline reviews

I like that the flight attendant was very attentive and helpful. The meal menu could have more of an variety of food choices.

10.0 ExcellentDonald, Feb 2026
CLT - PHX
Read more American Airlines reviews

I like that the flight attendant was very attentive and helpful. The meal menu could have more of an variety of food choices.

The flight was fine, once we got underway. It was more than hour delayed

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

It would be nice to have some low carb options in the snacks.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

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

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

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

Information on your arrival and departure airports

Ontario (ONT)
Flagstaff (FLG)