Fly from
Budget
£97 - £271
Route
Depart
Return
Price
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Tue 9/4
Nonstop1h 28m
Ontario
Mon 15/4
1 stop17h 02m
Seattle/Tacoma IntlOntario
SEA - ONT
SEAONT
Seattle/Tacoma Intl
Wed 17/4
Nonstop2h 45m
Ontario
Sat 20/4
Nonstop2h 53m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Thu 28/3
Nonstop1h 27m
Ontario
Sat 30/3
Nonstop1h 30m
Seattle/Tacoma IntlOntario
SEA - ONT
SEAONT
Seattle/Tacoma Intl
Wed 10/4
Nonstop2h 38m
Ontario
Fri 19/4
Nonstop2h 46m
Seattle/Tacoma IntlOntario
SEA - ONT
SEAONT
Seattle/Tacoma Intl
Fri 26/4
Nonstop2h 45m
Ontario
Sat 4/5
Nonstop2h 53m
San FranciscoOntario
SFO - ONT
SFOONT
San Francisco
Sat 22/6
1 stop5h 42m
Ontario
Tue 25/6
Nonstop1h 26m
Seattle/Tacoma IntlOntario
SEA - ONT
SEAONT
Seattle/Tacoma Intl
Wed 1/5
Nonstop2h 42m
Ontario
Tue 7/5
Nonstop2h 47m
Seattle/Tacoma IntlOntario
SEA - ONT
SEAONT
Seattle/Tacoma Intl
Fri 19/4
Nonstop2h 33m
Ontario
Sat 20/4
Nonstop2h 45m
Fort LauderdaleOntario
FLL - ONT
FLLONT
Fort Lauderdale
Fri 12/4
1 stop12h 42m
Ontario
Sun 14/4
1 stop11h 27m
Currently, January is the cheapest month in which you can book a flight to Ontario (average of £0). Flying to Ontario in August will prove the most costly (average of £935). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.
LAX Temperature | 14 - 23 °C |
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If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.
At just 3.7km (2.3 miles) east of downtown Ontario, Ontario International Airport is a small but well-equipped alternative to Los Angeles Airport and John Wayne Airport for passengers flying to California.
The number of flights to Ontario International Airport has been declining steadily in recent years (there were 4.8 million passengers in 2010, but the terminals are built to handle twice that) – some say due to the lack of direct flights to major destinations, in comparison with other airports nearby. However, those who use the airport agree that it is a convenient alternative, well connected to nearby air fields and towns, easy to get in and out of, clean and with good basic facilities.
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario.
Yes, we can. To see specific flights to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Yes, Cheapflights offers price alerts on Ontario flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.