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Flagstaff

$205+ Cheap flights from Ontario to Flagstaff (ONT - FLG)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FLG
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$426
(American Airlines)

One-way from

$205
(American Airlines)

Popular in

December

Cheapest in

April

Average price

$470
From Ontario to Flagstaff Pulliam
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One-way flight from Ontario to Flagstaff Pulliam
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Highest demand for flights based on searches. 8% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 7/106:15 amONT - FLG
1 stop5h 11mAmerican Airlines
Thu 7/176:04 pmFLG - ONT
1 stop3h 34mAmerican Airlines
Deal found 6/10$426

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 June 12, 2025.
Use the filters below to find and compare flights from Ontario to Flagstaff that are best for you.

Fly from

Ontario

Fly to

Flagstaff

Route

Depart

Return

Price

OntarioFlagstaff

ONT - FLG

ONTFLG

Ontario

Thu 7/10

6:15 am-11:26 am

1 stop5h 11m

Flagstaff Pulliam

Thu 7/17

6:04 pm-9:38 pm

1 stop3h 34m

$426

OntarioFlagstaff

ONT - FLG

ONTFLG

Ontario

Mon 9/8

6:10 am-9:58 am

1 stop3h 48m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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.

Cheapflights Insights

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

What is the cheapest month to book a flight from Ontario to Flagstaff?

Currently, January is the cheapest month in which you can book a flight from Ontario to Flagstaff (average of $567). Flying from Ontario to Flagstaff in March is currently the most expensive (average of $661). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to FLG?

Find hourly flight availability from Ontario to Flagstaff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s typically best to fly out from Ontario to Flagstaff in the morning. Doing so could potentially save you 3% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Flagstaff by month

Plan your trip to Flagstaff by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Flagstaff ranges from 0.4 - 2.7 inches per month. August is typically the wettest month, when rainfall can reach 2.7 in. June is typically the driest time to visit Flagstaff when rainfall is around 0.4 in.

Temperature in Flagstaff by month

Plan your trip to Flagstaff by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Flagstaff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 12, 2025.
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Crew

8.0

Overall

7.2

Comfort

7.2

Boarding

7.5

Food

6.5

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Crew

8.0

Overall

7.2

Comfort

7.2

Boarding

7.5

Food

6.5

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

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.

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

    American Airlines, at $426, was found to be the cheapest airline from Ontario to Flagstaff.. American Airlines is priced at 25% 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.

  • What is the cheapest month to book a flight from Ontario to Flagstaff?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Flagstaff (average of $567). Flying from Ontario to Flagstaff in March is currently the most expensive (average of $661). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ontario?

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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$363Average$550FlexibilityNo cancel feeOn-time71%

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