Cheap flights Ontario — San Diego (ONT — SAN)

Good to know - Cheap tickets Ontario — San Diego

Cheapest flight found $42
Minimal flight time 25m
Flight distance 155 km
Most popular airline American Airlines

Airfare Ontario – San Diego by month

Here you can find out in what months how much a ticket Ontario – San Diego costs to buy cheap plane tickets.

Month One-way Round-trip
April 2026
January 2026
December 2025
November 2025
October 2025
September 2025
August 2025
July 2025
June 2025
May 2025
April 2025
March 2025

Remember that the optimal time for booking air tickets is 59 days before the departure date, this is the average time at which air tickets were sold at the lowest prices.

Schedule of direct flights Ontario — San Diego

Departure Arrival Flight days Flight Airlines Flight time Airports
01:50 02:25 sat American Airlines 35m Ontario International Airport — Montgomery Field Select dates
04:21 04:46 sat FX1889 FedEx 25m Ontario International Airport — San Diego International Airport Select dates
08:56 09:59 fri American Airlines 1h 3m Ontario International Airport — San Diego International Airport Select dates
All routes

Sales of tickets from Ontario to San Diego in the last 48 hours

2025-08-06 one-way

Dynamics airfare Ontario — San Diego by month for the last year

according to LowCost.Club for the last year

The airfare depends on the departure date. Our chart shows the low season prices on route Ontario — San Diego

The graph shows that booking flights Ontario — San Diego is best planned for October and flights Ontario — San Diego — Ontario in the month of January.

Flights Ontario — San Diego

The selection of cheap flights Ontario — San Diego

Here you can find and purchase the cheapest flights Ontario — San Diego from $42 and Ontario — San Diego — Ontario from $51.

The price of the flight Ontario — San Diego (United States) — Ontario from $51 (round-trip).

The average price of the flight Ontario — San Diego (United States) — Ontario $349 (round-trip).

Low cost flights Ontario — San Diego (ONT — SAN)

The distance between Ontario and San Diego 96 miles (or 155 kilometres).

The time difference between Ontario and San Diego is 0 h.

Minimal flight time from Ontario to San Diego 25m.

LowCostClub always do a comparison of airfares Ontario — San Diego with several airlines (include American Airlines, FedEx). They will always give you all available options so you can find the cheapest flight to San Diego. In addition, you can choose the platform where you want to place your orders. There are also special offers for air tickets Ontario — San Diego. Last week, for instance, the cheapest round-trip prices stood at $51 while the cheapest one-way price that was available within the last week cost $42

Routes from nearby cities to San Diego

A flight from a neighbouring city can help you save money on plane tickets.

The most frequent flight to San Diego is from Los Angeles. The cheapest airfare can be purchased with a flight from Las Vegas from $19. The nearest airports from Ontario with a flight to San Diego are in Tijuana.

Popular International routes from Ontario

Popular routes from San Diego

If you are going to fly from San Diego, then study the popular flights. The most popular flights from San Diego:

Popular domestic routes from Ontario

FAQ about Ontario — San Diego

Yes, you can fly from Ontario to San Diego. Ontario has 2 airports (Ontario International Airport, International Heliport) for flights. American Airlines, FedEx depart from Ontario on fri, sat. There are non-direct flights through Alaska Horizon, Ameriflight, Delta Connection, Frontier (Cortez the Green Turtle Livery), Hawaiian Airlines, JetBlue, National Airlines, NetJets, Southwest Airlines, Spirit Airlines, United Express, UPS, West Air.

A direct flight lasts an average of 25m, during which time the aircraft covers a distance of 155 km.

The price of flights Ontario — San Diego starts from $42.

Planes fly Ontario — San Diego 2 times a week on the following days: fri, sat

In Ontario — Ontario International Airport, International Heliport. In San Diego — Montgomery Field, Miramar MS, North Island NAS, San Diego International Airport, Brown Field Municipalcipal, Gillespie Field, McClellan-Palomar Airport.

The following flights fly between Ontario and San Diego: FX1889

High season is considered to be August and the cheapest month is October. Enter your preferred airports (or cities) and dates into the search form above to unlock the latest Ontario — San Diego flight deals.

The following airlines have direct flights Ontario — San Diego: American Airlines, FedEx.

All the following airlines flights Ontario — San Diego: Alaska Horizon, American Airlines, Ameriflight, Delta Connection, FedEx, Frontier (Cortez the Green Turtle Livery), Hawaiian Airlines, JetBlue, National Airlines, NetJets, Southwest Airlines, Spirit Airlines, United Express, UPS, West Air.

Low price calendar

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