Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

ONT - FLG

Find cheap flights from Ontario to Flagstaff from $243

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 10/19. 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
0 bags
Sat 6/8
Sat 6/15

Search 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
In the last 7 days travelers have searched 43,895,468 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
6:45 am - 11:14 amONT-FLG
4h 29m1 stop
5:40 am - 8:45 amFLG-ONT
3h 05m1 stop
$381American Airlines
Find Deal
Thu, May 30 - Mon, Jun 3
6:15 am - 11:13 amONT-FLG
4h 58m1 stop
8:21 am - 8:39 amFLG-ONT
24h 18m1 stop
$416American Airlines
Find Deal
Thu, Jul 11 - Mon, Jul 15
4:36 pm - 9:29 pmONT-FLG
4h 53m1 stop
8:21 am - 8:47 amFLG-ONT
48h 26m1 stop
$417American Airlines
Find Deal
Sat, Jun 22 - Sun, Jun 23
10:34 am - 4:20 pmONT-FLG
5h 46m1 stop
6:46 am - 11:37 amFLG-ONT
5h 51m1 stop
$525American Airlines
Find Deal
Tue, Oct 29 - Tue, Nov 12
6:30 am - 9:44 amONT-FLG
3h 14m1 stop
11:47 am - 3:51 pmFLG-ONT
4h 04m1 stop
$526American Airlines
Find Deal
Tue, Jun 11 - Tue, Jun 18
6:30 am - 9:44 amONT-FLG
3h 14m1 stop
6:15 pm - 9:40 pmFLG-ONT
3h 25m1 stop
$548American Airlines
Find Deal
Fri, Jun 7 - Fri, Jun 14
6:30 am - 9:44 amONT-FLG
3h 14m1 stop
6:15 pm - 9:40 pmFLG-ONT
3h 25m1 stop
$549American Airlines
Find Deal
Thu, Jun 6 - Thu, Jun 13
6:30 am - 9:44 amONT-FLG
3h 14m1 stop
11:47 am - 3:51 pmFLG-ONT
4h 04m1 stop
$571American Airlines
Find Deal
Sat, Jun 8 - Sat, Jun 15
6:15 am - 9:38 amONT-FLG
3h 23m1 stop
11:50 am - 11:44 amFLG-ONT
23h 54m1 stop
$794Alaska Airlines
Find Deal
Fri, Oct 18 - Fri, Oct 18
6:15 am - 9:38 amONT-FLG
3h 23m1 stop
1:07 pm - 9:44 pmFLG-ONT
8h 37m2 stops
$974Alaska Airlines
Find Deal
Fri, Oct 18 - Fri, Oct 18

Flights from Ontario to Flagstaff - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Flagstaff to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ontario to Flagstaff?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Flagstaff, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Flagstaff is January, where tickets cost $372 on average. On the other hand, the most expensive months are May and July, where the average cost of tickets is $589 and $578 respectively.

How far in advance should I book a flight from Ontario to Flagstaff?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Flagstaff, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Flagstaff, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 27 days before departure.

Which airlines provide the cheapest flights from Ontario to Flagstaff?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Ontario to Flagstaff were found on American Airlines ($381) and Alaska Airlines ($794). American Airlines proposed the cheapest one-way flight at $243.

Good to know

Low season

June

High season

May

Cheapest flight

$243
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 3% increase in price.
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 $243 for a one-way ticket and $381 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.

See more FAQs

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.
7.3
American AirlinesOverall score based on 14665 reviews
7.6Boarding
7.2Comfort
7.1Entertainment
8.0Crew
6.6Food
Airline reviews

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

2.0 MediocreAnonymous, May 2024LAS - PHX
Read more about American Airlines reviews

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American Airlines continues to price it can provide the least comfortable passenger experience in the air. This legacy carrier rivals the budgets for both terrible seats and inadequate amenities. I am a 5’7” woman who is not wider than a coach seat (even on these narrow bodied aircraft). My 3.5 hour flight was terribly uncomfortable because the leg room is inadequate (my knees hit the seat on front of me even when it was not reclined); the seat barely reclines; and the foam padding is worn thin to the extent one can feel the metal supports of the seat. Add to this the fact that the aisle is super narrow, so that the drink cart literally scrapes the arm rest of the aisle seat. It’s basically torture.

Plane took off without me, my stepdad and a dozen other passengers. It went from an hour delay to boarding in 15 montures without notifying anyone. Names were not called overhead. Now I’m missing a day of work and stuck in Charolette overnight paying for a hotel and Ubers out of pocket

Flight from SBP to DFW 1. They rerouted us through PHX 2. Delayed flight out of SBP for 3 hrs so we missed our connection Downgrade on rerouted flight. Back of the plane, center seats, didn't sit together 4. Return flight out of DFW same exact thing. Delayed, missed connection, Downgrade + they lost our luggage! A complete mess.

after boarding on phx to sjd, crew discovered that one of the megaphones was either out of date or not working. It took 90 minutes to get a replacement and do the "paperwork." That is really unacceptable. Why wasn't the megaphone problem discovered before boarding? Is it part of normal maintenance check? who is responsible for checking. How can paperwork take that long? Fortunately, SJD was final destination for most travelers so very few if any passengers had to miss connections.

Flight From PHX to CVG was on time, very professional staff

Excellent- plan was barely populated. I cannot remember a flight where I was able/encouraged to stretch out!

Flight attendants used to be nice to people. And any flight over 5 hours should have some kind of food other than tiny pretzels and one drink comped.

just overall disappointing, not a treat to travel these days....paying for Main Cabin Extra was not worth it.

The usual wait at Columbus once you land to get to an open gate (20 minutes) and then the usual 30 minutes for your luggage to appear.

Book cheap flights from Ontario to Flagstaff

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Flagstaff found on KAYAK in the last 72 hours.
10/19Sat
1 stopAmerican Airlines
16h 53mONT-FLG
$243
10/17Thu
1 stopAmerican Airlines
16h 53mONT-FLG
$324
5/22Wed
1 stopAmerican Airlines
3h 06mONT-FLG
$363
10/19Sat
2 stopsAlaska Airlines
14h 01mONT-FLG
$459
5/28Tue
2 stopsAlaska Airlines
21h 31mONT-FLG
$496
5/15Wed
1 stopAmerican Airlines
4h 29mONT-FLG
$557
5/15Wed
2 stopsAlaska Airlines
12h 31mONT-FLG
$565
10/17Thu
2 stopsAlaska Airlines
18h 16mONT-FLG
$670
5/28Tue
1 stopAmerican Airlines
3h 06mONT-FLG
$757

Search by stops

Search by airline

Search by price

Last minute flights from Ontario to Flagstaff

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Flagstaff that are departing in the next 10 days.
5/14Tue
multi-stopAmerican Airlines
4h 47mONT-FLG
5/15Wed
multi-stopAmerican Airlines
3h 49mFLG-ONT
$717
5/10Fri
multi-stopAmerican Airlines
3h 06mONT-FLG
5/17Fri
multi-stopAmerican Airlines
6h 07mFLG-ONT
$718
5/10Fri
multi-stopAmerican Airlines
3h 06mONT-FLG
5/12Sun
multi-stopAmerican Airlines
3h 49mFLG-ONT
$767
5/11Sat
multi-stopAmerican Airlines
3h 17mONT-FLG
5/14Tue
multi-stopAmerican Airlines
3h 49mFLG-ONT
$768
5/13Mon
multi-stopAmerican Airlines
3h 06mONT-FLG
5/19Sun
multi-stopAmerican Airlines
3h 49mFLG-ONT
$863
5/14Tue
multi-stopAmerican Airlines
4h 47mONT-FLG
5/15Wed
multi-stopAmerican Airlines
8h 12mFLG-ONT
$1,198
5/11Sat
multi-stopAmerican Airlines
4h 29mONT-FLG
5/13Mon
multi-stopAmerican Airlines
8h 12mFLG-ONT
$1,228
5/11Sat
multi-stopAmerican Airlines
3h 06mONT-FLG
5/14Tue
multi-stopAmerican Airlines
8h 12mFLG-ONT
$1,229
5/10Fri
multi-stopAmerican Airlines
3h 06mONT-FLG
5/12Sun
multi-stopAmerican Airlines
8h 12mFLG-ONT
$1,428
5/13Mon
multi-stopAmerican Airlines
3h 06mONT-FLG
5/19Sun
multi-stopAmerican Airlines
8h 12mFLG-ONT
$1,499

Search by stops

Search by airline

Search by price

Ontario - Flagstaff Flights

Departure:

Ontario (undefined)United States

Destination:

Flagstaff (FLG)United States

Return flight deals:

Flagstaff - Ontario

Cabin classes: