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Ontario

$181+ Cheap flights from Flagstaff to Ontario (FLG - ONT)

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
FLG — ONT
Mar 16 — Mar 231
Mon 3/16
Mon 3/23
1 adult, Economy
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Cheap flight deals from Flagstaff to Ontario

Cheapest flights from Flagstaff to Ontario
Explore the most affordable flight options available from Flagstaff to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.

This American Airlines deal was found by Cheapflights users on 2/13. 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 3/51:21 pm
FLG
-
ONT
1 stop4h 01m
American Airlines
Mon 3/97:59 pm
ONT
-
FLG
1 stop3h 08m
American Airlines
Deal found 2/13$336
This American Airlines deal was found by Cheapflights users on 2/12. 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 2/261:21 pm
FLG
-
ONT
1 stop4h 01m
American Airlines
Thu 2/267:05 pm
ONT
-
FLG
1 stop3h 54m
American Airlines
Deal found 2/12$440
This American Airlines deal was found by Cheapflights users on 2/12. 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 2/265:50 pm
FLG
-
ONT
1 stop5h 17m
American Airlines
Fri 2/275:02 pm
ONT
-
FLG
1 stop5h 57m
American Airlines
Deal found 2/12$446
This American Airlines deal was found by Cheapflights users on 2/12. 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 2/205:50 pm
FLG
-
ONT
1 stop5h 17m
American Airlines
Tue 2/246:15 am
ONT
-
FLG
1 stop5h 36m
American Airlines
Deal found 2/12$466
This American Airlines deal was found by Cheapflights users on 2/12. 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 2/205:50 pm
FLG
-
ONT
1 stop5h 17m
American Airlines
Sun 2/225:02 pm
ONT
-
FLG
1 stop5h 57m
American Airlines
Deal found 2/12$496
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Mon 2/231:21 pm
FLG
-
ONT
1 stop4h 01m
American Airlines
Mon 2/237:05 pm
ONT
-
FLG
1 stop3h 54m
American Airlines
Deal found 2/12$510
This American Airlines deal was found by Cheapflights users on 2/12. 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 2/217:00 am
FLG
-
ONT
1 stop5h 36m
American Airlines
Mon 2/2312:18 pm
ONT
-
FLG
1 stop4h 01m
American Airlines
Deal found 2/12$516
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Sun 2/221:21 pm
FLG
-
ONT
1 stop4h 01m
American Airlines
Sun 2/227:05 pm
ONT
-
FLG
1 stop3h 54m
American Airlines
Deal found 2/12$540
This American Airlines deal was found by Cheapflights users on 2/12. 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 2/217:00 am
FLG
-
ONT
1 stop5h 36m
American Airlines
Sun 2/225:02 pm
ONT
-
FLG
1 stop5h 57m
American Airlines
Deal found 2/12$546
This American Airlines deal was found by Cheapflights users on 2/13. 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 3/61:21 pm
FLG
-
ONT
1 stop4h 01m
American Airlines
Mon 3/97:59 pm
ONT
-
FLG
1 stop3h 08m
American Airlines
Deal found 2/13$556
This American Airlines deal was found by Cheapflights users on 2/12. 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 2/217:00 am
FLG
-
ONT
1 stop5h 36m
American Airlines
Wed 2/257:05 pm
ONT
-
FLG
1 stop3h 54m
American Airlines
Deal found 2/12$566
This American Airlines deal was found by Cheapflights users on 2/11. 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 2/271:21 pm
FLG
-
ONT
1 stop4h 01m
American Airlines
Fri 2/277:05 pm
ONT
-
FLG
1 stop3h 54m
American Airlines
Deal found 2/11$656

Find flight deals from Flagstaff to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Flagstaff (FLG) to Ontario (ONT). 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 February 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$336
(American Airlines)

One-way from

$181
(American Airlines)

Popular in

April

Cheapest in

August

Average price

$305
Provider with most accurate pricing for Flagstaff Pulliam-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Flagstaff Pulliam-Ontario flights.
Search Deals
From Flagstaff Pulliam to Ontario
Search Deals
One-way flight from Flagstaff Pulliam to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Flagstaff to Ontario 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 February 14, 2026.
Use the filters below to find and compare flights from Flagstaff to Ontario that are best for you.

Fly from

Flagstaff

Fly to

Ontario

Route

Depart

Return

Price

FlagstaffOntario

FLG - ONT

FLGONT

Flagstaff Pulliam

Thu 3/5

1:21 pm-4:22 pm

1 stop4h 01m

Ontario

Mon 3/9

7:59 pm-11:07 pm

1 stop3h 08m

$336

FlagstaffOntario

FLG - ONT

FLGONT

Flagstaff Pulliam

Thu 2/26

1:21 pm-4:22 pm

1 stop4h 01m

Ontario

Thu 2/26

7:05 pm-11:59 pm

1 stop3h 54m

$440

FlagstaffOntario

FLG - ONT

FLGONT

Flagstaff Pulliam

Thu 2/26

5:50 pm-10:07 pm

1 stop5h 17m

Ontario

Fri 2/27

5:02 pm-11:59 pm

1 stop5h 57m

$446

FlagstaffOntario

FLG - ONT

FLGONT

Flagstaff Pulliam

Tue 3/3

1:21 pm-4:22 pm

1 stop4h 01m

Ontario

Thu 3/5

7:05 pm-11:59 pm

1 stop3h 54m

$446

FlagstaffOntario

FLG - ONT

FLGONT

Flagstaff Pulliam

Tue 2/24

7:00 am-11:28 am

1 stop5h 28m

Ontario

Tue 2/24

5:02 pm-8:56 pm

1 stop2h 54m

$466

FlagstaffOntario

FLG - ONT

FLGONT

Flagstaff Pulliam

Tue 2/24

7:00 am-11:28 am

1 stop5h 28m

Ontario

Fri 2/27

5:02 pm-11:59 pm

1 stop5h 57m

$466

FlagstaffOntario

FLG - ONT

FLGONT

Flagstaff Pulliam

Wed 2/25

7:00 am-11:28 am

1 stop5h 28m

Ontario

Fri 2/27

12:18 pm-5:19 pm

1 stop4h 01m

$466

FlagstaffOntario

FLG - ONT

FLGONT

Flagstaff Pulliam

Wed 2/25

5:50 pm-10:19 pm

1 stop5h 29m

Ontario

Thu 2/26

7:05 pm-11:59 pm

1 stop3h 54m

$466

FlagstaffOntario

FLG - ONT

FLGONT

Flagstaff Pulliam

Tue 2/24

1:21 pm-4:22 pm

1 stop4h 01m

Ontario

Thu 2/26

12:18 pm-5:19 pm

1 stop4h 01m

$466

FlagstaffOntario

FLG - ONT

FLGONT

Flagstaff Pulliam

Tue 2/24

7:00 am-11:28 am

1 stop5h 28m

Ontario

Wed 2/25

6:15 am-12:51 pm

1 stop5h 36m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 20 results
1
2

Compare providers for flights from Flagstaff to Ontario

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 Flagstaff to Ontario in February.
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 Flagstaff-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Flagstaff-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Flagstaff-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Flagstaff-Ontario 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 Flagstaff-Ontario 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 Flagstaff to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Flagstaff 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 Flagstaff to Ontario

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

Currently, June is the cheapest month in which you can book a flight from Flagstaff to Ontario (average of $193). Flying from Flagstaff to Ontario in October is currently the most expensive (average of $248). 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.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated February 14, 2026.
Read reviews from past customers who have flown American Airlines from Flagstaff to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,288 reviews

Comfort

7.2

Food

6.4

Crew

8.0

Boarding

7.5

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
4.0
Okay

Amanda,Sep 2023

PHX - OGG

The flight attendants only came thru twice for drink service the entire 6 hour flight. The first was 90 minutes in and the second was an hour before landing. It feels like it should be more.
American Airlines
7.2
Good
11,288 reviews
American Airlines
7.2
Good
11,288 reviews

Comfort

7.2

Food

6.4

Crew

8.0

Boarding

7.5

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
4.0
Okay

Amanda,Sep 2023

PHX - OGG

The flight attendants only came thru twice for drink service the entire 6 hour flight. The first was 90 minutes in and the second was an hour before landing. It feels like it should be more.

Related info for your journey

Find useful and relevant information for your journey from Flagstaff to Ontario. 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 Flagstaff to Ontario?

    There are many flights that can get you from Flagstaff to Ontario in 4h 01m. Fly via American Airlines to get the fastest option. The distance from Flagstaff to Ontario is about 345 mi.

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

    Flying on American Airlines is currently your cheapest option to Ontario, with prices starting at $285. American Airlines is currently priced 24% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Flagstaff to Ontario 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 Flagstaff to Ontario?

    Currently, June is the cheapest month in which you can book a flight from Flagstaff to Ontario (average of $193). Flying from Flagstaff to Ontario in October is currently the most expensive (average of $248). 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

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Alternative routes for Flagstaff to Ontario

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Top airline flying from Flagstaff to Ontario

Discover the top airline that operate flights from Flagstaff to Ontario. 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 February 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$285Average$315FlexibilityNo cancel feeOn-time71%

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