Flight information for Ontario to San Diego
(ONT to SAN)
Find info about flight duration, direct flights, and airports for your flight from Ontario to San Diego
| Best Price Found | $244 | The best flight deal from Ontario to San Diego found on momondo in the last 72 hours is $244 |
| Fastest flight time | 0h 46m | The fastest flight from Ontario to San Diego takes 0h 46m |
| Direct flights | None | There are no direct flights from Ontario to San Diego. Popular non-direct route for this connection is Ontario Airport - San Diego Airport. |
| Airports in San Diego | 2 airports | There are 2 airports near San Diego: San Diego (SAN), San Diego Carlsbad-Palomar (CLD) |
How to get the cheapest flight ticket from Ontario to San Diego
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart Ontario for San Diego?
Friday
The cheapest day of the week is typically Friday. The most expensive is typically Friday
When is the cheapest time to fly from Ontario to San Diego?
in the morning
Ontario to San Diego flights are approximately 0% more expensive in the morning than in the morning
What is the cheapest Ontario to San Diego flight route?
Ontario - San Diego
Fly from Ontario to San Diego for the best Ontario - San Diego flight prices
Easily compare round-trip flights from Ontario to San Diego
Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Ontario to San Diego by changing tabs
Multiple Airlines![Multiple Airlines]()
Nov 8![Multiple Airlines]()
Nov 12
ONT7:17 amOntario
5h 38m
1 stop
SAN12:55 pmSan Diego
SAN3:00 amSan Diego
25h 20m
1 stop
ONT4:20 amOntario
Frontier![Frontier]()
Dec 22![Frontier]()
Dec 28
ONT9:35 amOntario
6h 52m
1 stop
SAN4:27 pmSan Diego
SAN3:09 amSan Diego
25h 07m
1 stop
ONT4:16 amOntario
United Airlines![United Airlines]()
Dec 11![United Airlines]()
Dec 12
ONT1:00 amOntario
14h 29m
1 stop
SAN3:29 pmSan Diego
SAN1:15 amSan Diego
18h 00m
1 stop
ONT7:15 pmOntario
Alaska Airlines![Alaska Airlines]()
Jan 5![Alaska Airlines]()
Jan 5
ONT1:00 amOntario
9h 44m
1 stop
SAN10:44 amSan Diego
SAN3:15 pmSan Diego
13h 59m
1 stop
ONT5:14 amOntario
American Airlines![American Airlines]()
Dec 4![American Airlines]()
Dec 6
ONT1:30 amOntario
11h 25m
1 stop
SAN12:55 pmSan Diego
SAN11:07 amSan Diego
16h 36m
1 stop
ONT3:43 amOntario
Find the cheapest one-way flights from Ontario to San Diego
If you're looking for one-way flights from Ontario to San Diego, view some of our deals below provided by Alaska Airlines, Frontier and Linear Air Taxi
Search last-minute flights to San Diego from Ontario
Find and compare flight prices for your last-minute flight from Ontario to San Diego
Frontier![Frontier]()
Nov 1![Frontier]()
Nov 2
ONT8:22 amOntario
11h 07m
1 stop
SAN7:29 pmSan Diego
SAN9:27 amSan Diego
7h 53m
1 stop
ONT5:20 pmOntario
Multiple Airlines![Multiple Airlines]()
Oct 30![Multiple Airlines]()
Oct 31
ONT1:45 amOntario
9h 42m
1 stop
SAN11:27 amSan Diego
SAN2:30 amSan Diego
9h 58m
2 stops
ONT12:28 pmOntario
Frontier![Frontier]()
Nov 2![Frontier]()
Nov 5
ONT8:08 amOntario
11h 21m
1 stop
SAN7:29 pmSan Diego
SAN2:25 amSan Diego
12h 23m
1 stop
ONT2:48 pmOntario
American Airlines![American Airlines]()
Nov 2![American Airlines]()
Nov 5
ONT5:14 amOntario
8h 17m
1 stop
SAN1:31 pmSan Diego
SAN8:35 amSan Diego
9h 18m
1 stop
ONT5:53 pmOntario
Frontier![Frontier]()
Oct 30![Frontier]()
Nov 1
ONT5:56 amOntario
6h 54m
1 stop
SAN12:50 pmSan Diego
SAN6:04 amSan Diego
8h 59m
1 stop
ONT3:03 pmOntario
Are airlines flying from Ontario to San Diego offering flexible cancellation due to COVID-19?
Some of our partner airlines flying from Ontario to San Diego are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are American Airlines, Linear Air Taxi, and United Airlines. You can search for the full list of airlines like American Airlines that are offering this flexibility.
How far is Ontario to San Diego by plane?
A flight from Ontario to San Diego will travel around 97.3 mi. By plane, this route typically takes 3h 55m.
Can I fly to San Diego from Ontario right now?
Information is based on travel restrictions for travel to San Diego within the United States
Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter San Diego.
COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to San Diego.
Quarantine requirements
Visitors from Ontario are not required to quarantine after entering San Diego.
Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter San Diego.
COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to San Diego.
Quarantine requirements
Visitors from Ontario are not required to quarantine after entering San Diego.
Can I fly back to Ontario from San Diego?
Returning to Ontario from San Diego
COVID-19 testing requirements
Visitors from San Diego must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ontario.
Quarantine requirements
Visitors from San Diego are not required to quarantine after entering Ontario.
COVID-19 testing requirements
Visitors from San Diego must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ontario.
Quarantine requirements
Visitors from San Diego are not required to quarantine after entering Ontario.