$85+ Cheap flights from Ontario to Monterey (ONT - MRY)
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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MRY
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Monterey 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
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Cheapest flights from Ontario to MontereyExplore the most affordable flight options available from Ontario to Monterey. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Ontario to Monterey. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:17 pm -
1 stop5h 42m
Mon 12/73:30 pm -
1 stop5h 08m
Deal found 10/25![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/141:35 pm -
1 stop3h 43m
Mon 11/162:25 pm -
1 stop3h 31m
Deal found 10/25![United Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:17 pm -
1 stop5h 17m
Sat 11/142:25 pm -
1 stop3h 36m
Deal found 10/26![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:17 pm -
1 stop5h 17m
Sat 11/710:05 am -
1 stop5h 28m
Deal found 10/29![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:00 am -
1 stop4h 55m
Sat 11/2110:05 am -
1 stop5h 28m
Deal found 10/28![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:35 pm -
1 stop5h 44m
Mon 11/162:25 pm -
1 stop5h 50m
Deal found 10/26![United Airlines logo]()
$434
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/134:17 pm -
1 stop3h 02m
Sun 11/158:20 am -
1 stop4h 09m
Deal found 10/29![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/71:35 pm -
1 stop3h 43m
Tue 11/102:25 pm -
1 stop5h 50m
Deal found 10/26![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:35 pm -
1 stop5h 44m
Mon 11/96:30 am -
1 stop5h 59m
Deal found 10/28![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:25 am -
1 stop3h 39m
Mon 11/28:20 am -
1 stop4h 09m
Deal found 10/26![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:32 pm -
1 stop7h 40m
Sun 11/112:19 pm -
1 stop3h 14m
Deal found 10/28![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/811:20 am -
1 stop3h 35m
Fri 12/1112:17 pm -
1 stop5h 19m
Deal found 10/27![United Airlines logo]()
$507
Best flights from Ontario to MontereyDiscover carefully curated flight deals from Ontario to Monterey that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Ontario to Monterey that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:17 pm -
1 stop5h 42m
Mon 12/73:30 pm -
1 stop5h 08m
Deal found 10/25![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/141:35 pm -
1 stop3h 43m
Mon 11/162:25 pm -
1 stop3h 31m
Deal found 10/25![United Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
1 stop4h 35m
Thu 12/36:30 am -
1 stop3h 08m
Deal found 10/29![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:00 am -
1 stop4h 55m
Sat 11/2110:05 am -
1 stop5h 28m
Deal found 10/25![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/241:05 pm -
1 stop4h 43m
Mon 1/48:19 am -
1 stop3h 39m
Deal found 10/25![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:40 pm -
1 stop3h 19m
Sun 12/1312:17 pm -
1 stop5h 19m
Deal found 10/26![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1411:20 am -
1 stop3h 35m
Sat 1/1612:00 pm -
1 stop3h 18m
Deal found 10/29![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/166:00 am -
1 stop5h 16m
Mon 1/187:00 am -
1 stop2h 57m
Deal found 10/27![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/204:17 pm -
1 stop3h 02m
Sun 11/228:20 am -
1 stop4h 09m
Deal found 10/26![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/186:27 pm -
1 stop3h 31m
Tue 1/58:25 am -
1 stop3h 55m
Deal found 10/25![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/16:00 am -
1 stop3h 19m
Sat 4/32:39 pm -
1 stop5h 28m
Deal found 10/28![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:35 pm -
1 stop5h 44m
Mon 11/162:25 pm -
1 stop5h 50m
Deal found 10/28![United Airlines logo]()
$449
Last-minute flights from Ontario to MontereyDiscover last-minute flight deals from Ontario to Monterey. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Monterey. Data last updated October 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:25 am -
1 stop3h 39m
Mon 11/28:20 am -
1 stop4h 09m
Deal found 10/26![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:17 pm -
1 stop5h 17m
Sat 11/710:05 am -
1 stop5h 28m
Deal found 10/29![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:00 am -
1 stop4h 55m
Sun 11/88:20 am -
1 stop4h 09m
Deal found 10/29![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/71:35 pm -
1 stop3h 43m
Tue 11/102:25 pm -
1 stop5h 50m
Deal found 10/26![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/71:35 pm -
1 stop3h 43m
Mon 11/92:25 pm -
1 stop3h 31m
Deal found 10/29![United Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:17 pm -
1 stop5h 17m
Sat 11/142:25 pm -
1 stop3h 36m
Deal found 10/26![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:25 am -
1 stop3h 34m
Mon 11/1612:19 pm -
1 stop3h 14m
Deal found 10/27![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:35 pm -
1 stop5h 44m
Mon 11/162:25 pm -
1 stop5h 50m
Deal found 10/26![United Airlines logo]()
$434
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/134:17 pm -
1 stop3h 02m
Sun 11/158:20 am -
1 stop4h 09m
Deal found 10/29![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/141:35 pm -
1 stop3h 43m
Mon 11/162:25 pm -
1 stop3h 31m
Deal found 10/25![United Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:00 am -
1 stop4h 55m
Sat 11/2110:05 am -
1 stop5h 28m
Deal found 10/28![United Airlines logo]()
$419
One-way flights from Ontario to MontereySearch for one-way flight options from Ontario to Monterey. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Ontario to Monterey. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This WAYA deal was found by Cheapflights users on 10/26. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1810:23 am -
1 stop9h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$85
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:35 pm -
1 stop3h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![United Airlines logo]()
$299
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 1/67:10 am -
2 stops10h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Alaska Airlines logo]()
$312
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/296:00 am -
1 stop4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:25 am -
1 stop3h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/36:00 am -
1 stop5h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![United Airlines logo]()
$429
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Sun 1/38:59 pm -
2 stops19h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Alaska Airlines logo]()
$466
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 11/137:13 pm -
2 stops19h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Alaska Airlines logo]()
$498
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 11/65:59 pm -
2 stops22h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Alaska Airlines logo]()
$605
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 11/712:02 pm -
2 stops11h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Alaska Airlines logo]()
$642
Find flight deals from Ontario to Monterey
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Monterey (MRY). 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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $141 (Kiwi.com) |
One-way from | $85 (WAYA) |
Popular in | April |
Cheapest in | November |
Average price | $368 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Monterey 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 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Ontario to Monterey that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioMonterey
ONT Ontario - MRY Monterey Regional
ONTMRY
Ontario
Wed 11/25
1:35 pm-5:18 pm
1 stop3h 43m
Monterey Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
OntarioMonterey
ONT Ontario - MRY Monterey Regional
ONTMRY
Ontario
Tue 1/19
5:00 am-1:01 pm
1 stop8h 01m
Monterey Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
OntarioMonterey
ONT Ontario - MRY Monterey Regional
ONTMRY
Ontario
Fri 12/18
6:00 am-11:12 am
1 stop5h 12m
Monterey Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
OntarioMonterey
ONT Ontario - MRY Monterey Regional
ONTMRY
Ontario
Wed 1/6
9:45 am-2:55 pm
1 stop5h 10m
Monterey Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
OntarioMonterey
ONT Ontario - MRY Monterey Regional
ONTMRY
Ontario
Sat 1/2
6:00 am-11:12 am
1 stop5h 12m
Monterey Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
Quickest round-trip
OntarioMonterey
ONT Ontario - MRY Monterey Regional
ONTMRY
Ontario
Thu 12/10
6:40 pm-9:59 pm
1 stop3h 19m
Monterey Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
OntarioMonterey
ONT Ontario - MRY Monterey Regional
ONTMRY
Ontario
Tue 11/17
4:17 pm-9:34 pm
1 stop5h 17m
Monterey Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
OntarioMonterey
ONT Ontario - MRY Monterey Regional
ONTMRY
Ontario
Wed 12/2
11:20 am-2:55 pm
1 stop3h 35m
Monterey Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
OntarioMonterey
ONT Ontario - MRY Monterey Regional
ONTMRY
Ontario
Fri 12/11
6:00 am-11:42 am
1 stop5h 42m
Monterey Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
OntarioMonterey
ONT Ontario - MRY Monterey Regional
ONTMRY
Ontario
Mon 11/9
4:17 pm-8:31 pm
1 stop4h 14m
Monterey Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$329
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Ontario to Monterey
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 Monterey in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Monterey flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Monterey flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Monterey flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Monterey 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-Monterey 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 Monterey
Have a flexible travel schedule? Discover the best time to fly to Monterey from Ontario with our price prediction graph.
ONT-MRY
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 Monterey
Get insights into the airlines that provide service to Monterey. 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 Monterey. Reviews last updated October 30, 2026.
Get a feel of what it's like to fly with United Airlines from Ontario to Monterey by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Overall
7.3
Crew
8.1
Food
6.7
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
Entertainment
7.1
Overall
7.3
Crew
8.1
Food
6.7
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
Related info for your journey
Find useful and relevant information for your journey from Ontario to Monterey. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Monterey
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Ontario and Monterey flights
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Top airline flying from Ontario to Monterey
Discover the top airline that operate flights from Ontario to Monterey. 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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$264 | Average$396 | FlexibilityNo cancel fee | On-time69% |