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Flagstaff

$424+ Cheap flights from Ontario to Flagstaff (ONT - FLG)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FLG
Sep 10 — Sep 171
Thu 9/10
Thu 9/17
1 adult, Economy
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Cheap flight deals from Ontario to Flagstaff

Cheapest flights from Ontario to Flagstaff
Explore the most affordable flight options available from Ontario to Flagstaff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

This American Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:30 am -
1 stop4h 40m
Tue 11/1711:16 am -
1 stop6h 03m
Deal found 8/9$424
This American Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:29 pm -
1 stop4h 10m
Mon 10/196:20 pm -
1 stop4h 33m
Deal found 8/10$454
This American Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:30 am -
1 stop3h 14m
Sun 11/2212:40 pm -
1 stop3h 57m
Deal found 8/9$484
This American Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:29 pm -
1 stop4h 10m
Sun 10/1810:34 am -
1 stop4h 42m
Deal found 8/9$504
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:59 pm -
1 stop5h 21m
Tue 8/257:00 am -
1 stop5h 03m
Deal found 8/11$506
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:15 am -
1 stop4h 56m
Sun 8/236:27 pm -
1 stop3h 28m
Deal found 8/11$566
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:59 pm -
1 stop5h 21m
Sat 8/221:52 pm -
1 stop4h 23m
Deal found 8/11$659

Find flight deals from Ontario to Flagstaff

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Flagstaff (FLG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$424
(American Airlines)

Popular in

March

Cheapest in

October

Average price

$473
Provider with most accurate pricing for Ontario-Flagstaff Pulliam flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Flagstaff Pulliam flights.
Search Deals
From Ontario to Flagstaff Pulliam
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Flagstaff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 11, 2026.
Use the filters below to find and compare flights from Ontario to Flagstaff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioFlagstaff

ONT Ontario - FLG Flagstaff Pulliam

ONTFLG

Ontario

Tue 11/10

6:30 am-12:10 pm

1 stop4h 40m

Flagstaff Pulliam

Tue 11/17

11:16 am-4:19 pm

1 stop6h 03m

$424

OntarioFlagstaff

ONT Ontario - FLG Flagstaff Pulliam

ONTFLG

Ontario

Tue 10/13

4:29 pm-8:39 pm

1 stop4h 10m

Flagstaff Pulliam

Mon 10/19

6:20 pm-10:53 pm

1 stop4h 33m

$454
Quickest round-trip

OntarioFlagstaff

ONT Ontario - FLG Flagstaff Pulliam

ONTFLG

Ontario

Thu 11/19

6:30 am-10:44 am

1 stop3h 14m

Flagstaff Pulliam

Sun 11/22

12:40 pm-3:37 pm

1 stop3h 57m

$484

OntarioFlagstaff

ONT Ontario - FLG Flagstaff Pulliam

ONTFLG

Ontario

Tue 10/13

4:29 pm-8:39 pm

1 stop4h 10m

Flagstaff Pulliam

Sun 10/18

10:34 am-3:16 pm

1 stop4h 42m

$504
Cheapest one-way
Quickest one-way

OntarioFlagstaff

ONT Ontario - FLG Flagstaff Pulliam

ONTFLG

Ontario

Fri 9/18

7:59 pm-3:00 pm

2 stops19h 01m

$511

OntarioFlagstaff

ONT Ontario - FLG Flagstaff Pulliam

ONTFLG

Ontario

Sat 9/19

3:14 pm-9:28 pm

2 stops30h 14m

$522

OntarioFlagstaff

ONT Ontario - FLG Flagstaff Pulliam

ONTFLG

Ontario

Fri 8/28

6:05 pm-6:20 pm

2 stops24h 15m

$527

OntarioFlagstaff

ONT Ontario - FLG Flagstaff Pulliam

ONTFLG

Ontario

Sat 8/22

4:50 pm-8:14 pm

2 stops27h 24m

$579

OntarioFlagstaff

ONT Ontario - FLG Flagstaff Pulliam

ONTFLG

Ontario

Sat 12/26

4:01 pm-3:35 pm

2 stops22h 34m

$881

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Sorted by cheapest first

Compare providers for flights from Ontario to Flagstaff

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Flagstaff in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Flagstaff flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Flagstaff flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Flagstaff flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Flagstaff flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Flagstaff flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Flagstaff

Have a flexible travel schedule? Discover the best time to fly to Flagstaff from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Flagstaff

Get insights into the airlines that provide service to Flagstaff. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Flagstaff. Reviews last updated August 11, 2026.
See what other customers who have flown with American Airlines from Ontario to Flagstaff have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,903 reviews

Crew

7.9

Boarding

7.5

Food

6.4

Comfort

7.2

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
6.0
Good

Kristin,Jul 2026

DCA - PHX

We got delayed because of filling up more gas then a storm hit after that so we sat in the plane for 1.5 hours more. It was hot while we waited.
American Airlines
7.1
Good
11,903 reviews
American Airlines
7.1
Good
11,903 reviews

Crew

7.9

Boarding

7.5

Food

6.4

Comfort

7.2

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
6.0
Good

Kristin,Jul 2026

DCA - PHX

We got delayed because of filling up more gas then a storm hit after that so we sat in the plane for 1.5 hours more. It was hot while we waited.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Flagstaff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Flagstaff?

    There are many flights that can get you from Ontario to Flagstaff in 4h 40m. Fly via American Airlines to get the fastest option. The distance between Ontario and Flagstaff is about 345 mi.

  • What is the cheapest airline to fly from Ontario to Flagstaff round-trip?

    American Airlines, at $305, was found to be the cheapest airline from Ontario to Flagstaff.. American Airlines is priced at 34% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Ontario to Flagstaff that include hotel bookings?

    Yes. In addition to deals on Ontario to Flagstaff flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Flagstaff?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Flagstaff.

  • Can I find deals for business class flights from Ontario to Flagstaff?

    Yes. Cheapflights offers flight deals from Ontario to Flagstaff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Flagstaff?

Book flights to Flagstaff if you plan to visit one of these locations
Winslow
Williams

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Top airline flying from Ontario to Flagstaff

Discover the top airline that operate flights from Ontario to Flagstaff. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$305Average$465FlexibilityNo cancel feeOn-time71%

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