Cheap flights from Los Angeles, CA to Ontario, CA

Flights starting at £36. Choose between Frontier Airlines, Spirit Airlines, or Alaska Airlines to find the best price.

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Tips to know when travelling to Ontario

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Travelers usually depart from Los Angeles International, Los Angeles, CA - Downtown LA, Los Angeles, CA Bus Station, Los Angeles - Westwood Amtrak, or Los Angeles, CA - Jefferson USC when they travel from Los Angeles to Ontario. Book your trip to arrive at Ontario International, or Montclair (Ontario). The most popular airlines for this route are Frontier Airlines, Spirit Airlines, Alaska Airlines, JetBlue Airways, and Southern Airways Express. Los Angeles and Ontario have 182 direct flights per week.

Check-in for a flight from Los Angeles to Ontario

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
JetBlue AirwaysJBUB6NoOpens 24 days before flight
Closes 2 hours before flight
Southern Airways ExpressFDY9XYesNo

Ontario travel tips

1) Experience Lebanese food in Ontario
2) Prefer Scandia to Disneyland in Ontario to avoid crowds
3) Buy some rare plants at the Rancho Santa Ana Botanic Gardens near Ontario

Weather in Ontario

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January18°C7°C
February18°C7°C
March20°C8°C
April23°C10°C
May25°C13°C
June29°C16°C
July33°C19°C
August33°C20°C
September32°C18°C
October27°C15°C
November22°C10°C
December17°C7°C
Hottest Month
33°C
August
Coldest month
7°C
February
Sunny days
339
days per year

14 day forecast

Sunday
18 Feb
17°C9°C
25 Feb
20°C12°C
Monday
19 Feb
91%
13°C12°C
26 Feb
79%
13°C10°C
Tuesday
20 Feb
85%
13°C11°C
27 Feb
87%
13°C6°C
Wednesday
21 Feb
80%
15°C9°C
28 Feb
15°C6°C
Thursday
22 Feb
18°C8°C
29 Feb
17°C8°C
Friday
23 Feb
21°C9°C
1 Mar
20°C9°C
Saturday
24 Feb
21°C13°C
2 Mar
23°C12°C

Frequently asked questions

What are the most popular routes to and from Los Angeles?
What are the most popular routes to and from Ontario?
What airports are near Los Angeles?
What airports are near Ontario?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Los Angeles and Ontario?
What is Virtual Interlining and how do I use it?
Which airlines fly between Los Angeles and Ontario?
When's the best time to travel between Los Angeles and Ontario?
What flights operate between Los Angeles and Ontario?
How many airports are there near Los Angeles?
How many airports are there near Ontario?
What time do nonstop (direct) flights between Los Angeles and Ontario depart?
What time do nonstop (direct) flights between Los Angeles and Ontario arrive?
What time do flights between Los Angeles and Ontario depart?
What time do flights between Los Angeles and Ontario arrive?

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