$373+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FLG
Jun 5 — Jun 121
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Ontario to Flagstaff with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Flagstaff
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to FlagstaffExplore 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 May 6, 2026.
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 May 6, 2026.
This American Airlines deal was found by Cheapflights users on 5/5. 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 9/124:59 pm
ONT
- FLG
1 stop5h 40m
American Airlines
Wed 9/168:37 am
FLG
- ONT
1 stop6h 19m
American Airlines
Deal found 5/5![American Airlines logo]()
$414
This American Airlines deal was found by Cheapflights users on 5/2. 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 8/116:15 am
ONT
- FLG
1 stop3h 30m
American Airlines
Tue 8/187:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 5/2![American Airlines logo]()
$416
This American Airlines deal was found by Cheapflights users on 5/3. 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.
Wed 12/212:55 pm
ONT
- FLG
1 stop4h 37m
American Airlines
Mon 12/77:05 pm
FLG
- ONT
1 stop3h 55m
American Airlines
Deal found 5/3![American Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 5/1. 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 6/66:10 am
ONT
- FLG
1 stop3h 45m
American Airlines
Sun 6/76:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/1![American Airlines logo]()
$445
This American Airlines deal was found by Cheapflights users on 5/2. 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 7/76:10 am
ONT
- FLG
1 stop5h 04m
American Airlines
Wed 8/57:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 5/2![American Airlines logo]()
$484
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/236:10 am
ONT
- FLG
1 stop3h 45m
American Airlines
Tue 5/261:48 pm
FLG
- ONT
1 stop4h 34m
American Airlines
Deal found 5/2![American Airlines logo]()
$488
This American Airlines deal was found by Cheapflights users on 5/2. 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 7/96:10 am
ONT
- FLG
1 stop5h 04m
American Airlines
Wed 8/57:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 5/2![American Airlines logo]()
$514
This American Airlines deal was found by Cheapflights users on 5/2. 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 7/76:10 am
ONT
- FLG
1 stop5h 04m
American Airlines
Sun 8/96:27 pm
FLG
- ONT
1 stop3h 24m
American Airlines
Deal found 5/2![American Airlines logo]()
$534
This American Airlines deal was found by Cheapflights users on 5/2. 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 7/96:10 am
ONT
- FLG
1 stop5h 04m
American Airlines
Thu 8/67:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 5/2![American Airlines logo]()
$544
This American Airlines deal was found by Cheapflights users on 5/2. 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 7/66:10 am
ONT
- FLG
1 stop5h 04m
American Airlines
Wed 8/57:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 5/2![American Airlines logo]()
$546
This American Airlines deal was found by Cheapflights users on 5/4. 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.
Wed 5/276:10 am
ONT
- FLG
1 stop5h 03m
American Airlines
Sun 5/316:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/4![American Airlines logo]()
$549
This American Airlines deal was found by Cheapflights users on 5/5. 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 5/147:35 pm
ONT
- FLG
1 stop3h 22m
American Airlines
Fri 5/226:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/5![American Airlines logo]()
$556
Best flights from Ontario to FlagstaffDiscover carefully curated flight deals from Ontario to Flagstaff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 6, 2026.
Discover carefully curated flight deals from Ontario to Flagstaff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 6, 2026.
This American Airlines deal was found by Cheapflights users on 5/5. 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 9/124:59 pm
ONT
- FLG
1 stop5h 40m
American Airlines
Wed 9/168:37 am
FLG
- ONT
1 stop6h 19m
American Airlines
Deal found 5/5![American Airlines logo]()
$414
This American Airlines deal was found by Cheapflights users on 5/1. 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 6/66:10 am
ONT
- FLG
1 stop3h 45m
American Airlines
Sun 6/76:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/1![American Airlines logo]()
$445
This American Airlines deal was found by Cheapflights users on 5/2. 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 7/116:10 am
ONT
- FLG
1 stop3h 37m
American Airlines
Sat 8/87:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 5/2![American Airlines logo]()
$484
This American Airlines deal was found by Cheapflights users on 5/2. 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 7/96:10 am
ONT
- FLG
1 stop5h 04m
American Airlines
Wed 8/57:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 5/2![American Airlines logo]()
$514
This American Airlines deal was found by Cheapflights users on 5/4. 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.
Wed 5/276:10 am
ONT
- FLG
1 stop5h 03m
American Airlines
Sun 5/316:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/4![American Airlines logo]()
$549
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/291:10 pm
ONT
- FLG
1 stop4h 40m
American Airlines
Sun 5/316:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/2![American Airlines logo]()
$556
This American Airlines deal was found by Cheapflights users on 5/2. 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 7/121:10 pm
ONT
- FLG
1 stop4h 39m
American Airlines
Thu 8/66:27 pm
FLG
- ONT
1 stop3h 24m
American Airlines
Deal found 5/2![American Airlines logo]()
$576
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/1612:19 pm
ONT
- FLG
1 stop4h 12m
American Airlines
Mon 5/185:01 pm
FLG
- ONT
1 stop4h 58m
American Airlines
Deal found 5/2![American Airlines logo]()
$587
This American Airlines deal was found by Cheapflights users on 5/4. 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 5/216:10 am
ONT
- FLG
1 stop5h 03m
American Airlines
Sun 5/246:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/4![American Airlines logo]()
$608
This American Airlines deal was found by Cheapflights users on 5/2. 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 7/66:10 am
ONT
- FLG
1 stop5h 04m
American Airlines
Fri 8/77:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 5/2![American Airlines logo]()
$639
This American Airlines deal was found by Cheapflights users on 5/2. 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 7/76:10 am
ONT
- FLG
1 stop5h 04m
American Airlines
Mon 8/107:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 5/2![American Airlines logo]()
$641
Last-minute flights from Ontario to FlagstaffDiscover last-minute flight deals from Ontario to Flagstaff. Data last updated May 6, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Flagstaff. Data last updated May 6, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/87:35 pm
ONT
- FLG
1 stop3h 22m
American Airlines
Sat 5/911:41 am
FLG
- ONT
1 stop4h 41m
American Airlines
Deal found 5/1![American Airlines logo]()
$692
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/126:15 am
ONT
- FLG
1 stop4h 56m
American Airlines
Wed 5/2011:41 am
FLG
- ONT
1 stop4h 41m
American Airlines
Deal found 5/2![American Airlines logo]()
$566
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/1212:19 pm
ONT
- FLG
1 stop4h 12m
American Airlines
Tue 5/196:21 am
FLG
- ONT
1 stop5h 13m
American Airlines
Deal found 5/2![American Airlines logo]()
$579
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/126:15 am
ONT
- FLG
1 stop4h 56m
American Airlines
Mon 5/185:01 pm
FLG
- ONT
1 stop4h 58m
American Airlines
Deal found 5/2![American Airlines logo]()
$587
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/126:15 am
ONT
- FLG
1 stop4h 56m
American Airlines
Sun 5/1711:41 am
FLG
- ONT
1 stop4h 41m
American Airlines
Deal found 5/2![American Airlines logo]()
$682
This American Airlines deal was found by Cheapflights users on 5/5. 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 5/147:35 pm
ONT
- FLG
1 stop3h 22m
American Airlines
Fri 5/226:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/5![American Airlines logo]()
$556
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/147:35 pm
ONT
- FLG
1 stop3h 22m
American Airlines
Tue 5/196:21 am
FLG
- ONT
1 stop5h 13m
American Airlines
Deal found 5/2![American Airlines logo]()
$600
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/144:52 pm
ONT
- FLG
1 stop6h 05m
American Airlines
Sun 5/1711:41 am
FLG
- ONT
1 stop4h 41m
American Airlines
Deal found 5/2![American Airlines logo]()
$703
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/154:52 pm
ONT
- FLG
1 stop6h 05m
American Airlines
Mon 5/185:01 pm
FLG
- ONT
1 stop4h 58m
American Airlines
Deal found 5/1![American Airlines logo]()
$608
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/236:10 am
ONT
- FLG
1 stop3h 45m
American Airlines
Tue 5/261:48 pm
FLG
- ONT
1 stop4h 34m
American Airlines
Deal found 5/2![American Airlines logo]()
$488
This American Airlines deal was found by Cheapflights users on 5/4. 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.
Wed 5/276:10 am
ONT
- FLG
1 stop5h 03m
American Airlines
Sun 5/316:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/4![American Airlines logo]()
$549
This American Airlines deal was found by Cheapflights users on 5/1. 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 6/66:10 am
ONT
- FLG
1 stop3h 45m
American Airlines
Sun 6/76:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/1![American Airlines logo]()
$445
One-way flights from Ontario to FlagstaffSearch for one-way flight options from Ontario to Flagstaff. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
Search for one-way flight options from Ontario to Flagstaff. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
This American Airlines deal was found by Cheapflights users on 5/5. 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 6/236:10 am
ONT
- FLG
1 stop5h 03m
American Airlines
Deal found 5/5![American Airlines logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 5/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/314:18 pm
ONT
- FLG
2 stops27h 40m
Alaska Airlines
Deal found 5/3![Alaska Airlines logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 5/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/84:18 pm
ONT
- FLG
2 stops27h 56m
Alaska Airlines
Deal found 5/5![Alaska Airlines logo]()
$464
This Alaska Airlines deal was found by Cheapflights users on 5/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/611:15 am
ONT
- FLG
2 stops30h 35m
Alaska Airlines
Deal found 5/2![Alaska Airlines logo]()
$500
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 May 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $414 (American Airlines) |
One-way from | $373 (American Airlines) |
Popular in | March |
Cheapest in | June |
Average price | $548 |
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 May 6, 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
Cheapest round-trip
OntarioFlagstaff
ONT - FLG
ONTFLG
Ontario
Sat 9/12
4:59 pm-10:39 pm
1 stop5h 40m
Flagstaff Pulliam
Wed 9/16
8:37 am-2:56 pm
1 stop6h 19m
$414
Quickest round-trip
OntarioFlagstaff
ONT - FLG
ONTFLG
Ontario
Sat 6/6
6:10 am-9:55 am
1 stop3h 45m
Flagstaff Pulliam
Sun 6/7
6:27 pm-9:57 pm
1 stop3h 30m
$445
OntarioFlagstaff
ONT - FLG
ONTFLG
Ontario
Sat 7/11
6:10 am-9:47 am
1 stop3h 37m
Flagstaff Pulliam
Sat 8/8
7:00 am-12:03 pm
1 stop5h 03m
$484
OntarioFlagstaff
ONT - FLG
ONTFLG
Ontario
Thu 7/9
6:10 am-11:14 am
1 stop5h 04m
Flagstaff Pulliam
Wed 8/5
7:00 am-12:03 pm
1 stop5h 03m
$514
OntarioFlagstaff
ONT - FLG
ONTFLG
Ontario
Wed 5/27
6:10 am-11:13 am
1 stop5h 03m
Flagstaff Pulliam
Sun 5/31
6:27 pm-9:57 pm
1 stop3h 30m
$549
OntarioFlagstaff
ONT - FLG
ONTFLG
Ontario
Fri 5/29
1:10 pm-5:50 pm
1 stop4h 40m
Flagstaff Pulliam
Sun 5/31
6:27 pm-9:57 pm
1 stop3h 30m
$556
OntarioFlagstaff
ONT - FLG
ONTFLG
Ontario
Sun 7/12
1:10 pm-5:49 pm
1 stop4h 39m
Flagstaff Pulliam
Thu 8/6
6:27 pm-9:51 pm
1 stop3h 24m
$576
OntarioFlagstaff
ONT - FLG
ONTFLG
Ontario
Sat 5/16
12:19 pm-4:31 pm
1 stop4h 12m
Flagstaff Pulliam
Mon 5/18
5:01 pm-9:59 pm
1 stop4h 58m
$587
OntarioFlagstaff
ONT - FLG
ONTFLG
Ontario
Thu 5/21
6:10 am-11:13 am
1 stop5h 03m
Flagstaff Pulliam
Sun 5/24
6:27 pm-9:57 pm
1 stop3h 30m
$608
OntarioFlagstaff
ONT - FLG
ONTFLG
Ontario
Mon 7/6
6:10 am-11:14 am
1 stop5h 04m
Flagstaff Pulliam
Fri 8/7
7:00 am-12:03 pm
1 stop5h 03m
$639
Showing 1-10 of 14 resultsSorted 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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
ONT-FLG
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
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 May 6, 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.
Boarding
7.5
Crew
7.9
Entertainment
6.9
Overall
7.1
Food
6.4
Comfort
7.2
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Boarding
7.5
Crew
7.9
Entertainment
6.9
Overall
7.1
Food
6.4
Comfort
7.2
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
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.
Traveling to a place near Flagstaff?
Book flights to Flagstaff if you plan to visit one of these locationsWinslow
Williams
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Ontario
Popular flights
Alternative routes for Ontario to Flagstaff
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Flagstaff by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Flagstaff by cabin class
Find flights from Ontario to Flagstaff, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Flagstaff flights
Browse other Ontario and Flagstaff flight options. Last updated on May 6, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on May 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 May 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$335 | Average$445 | FlexibilityNo cancel fee | On-time71% |