Fly from
Fly to
Route
Depart
Return
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Thu 10/2
8:59 pm-12:26 am
Nonstop2h 27m
Denver Intl
Sun 10/5
6:00 am-7:23 am
Nonstop2h 23m
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Fri 10/3
8:59 pm-12:26 am
Nonstop2h 27m
Denver Intl
Sun 10/5
6:00 am-7:23 am
Nonstop2h 23m
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Thu 10/9
9:35 pm-10:40 pm
Nonstop1h 05m
Las Vegas Harry Reid Intl
Thu 10/16
10:00 pm-11:00 pm
Nonstop1h 00m
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Sun 10/5
9:05 pm-10:10 pm
Nonstop1h 05m
Las Vegas Harry Reid Intl
Wed 10/8
7:20 am-8:25 am
Nonstop1h 05m
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Sat 11/1
6:00 am-7:24 am
Nonstop1h 24m
San Francisco
Mon 11/3
9:30 pm-10:51 pm
Nonstop1h 21m
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Tue 10/7
9:36 am-10:55 am
Nonstop1h 19m
San Francisco
Tue 10/14
10:45 am-12:13 pm
Nonstop1h 28m
OntarioPortland
ONT - PDX
ONTPDX
Ontario
Tue 10/28
4:35 pm-10:27 pm
1 stop5h 52m
Portland
Tue 11/4
5:40 am-12:14 pm
1 stop6h 34m
OntarioPortland
ONT - PDX
ONTPDX
Ontario
Sat 10/11
11:48 am-7:19 pm
1 stop7h 31m
Portland
Wed 10/15
5:25 pm-10:41 pm
1 stop5h 16m
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Sat 2/14
11:55 pm-11:23 am
1 stop8h 28m
Newark
Sat 2/21
6:49 pm-11:43 pm
1 stop7h 54m
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Tue 11/4
6:20 am-4:55 pm
1 stop7h 35m
Newark
Wed 11/5
6:39 am-12:03 pm
1 stop8h 24m
Prices for flights from Ontario Airport to Worldwide were last updated today.
There are 9 operators available for flights from Ontario Airport to Worldwide as of September 2025.
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Worldwide.
The required travel and health documents for your Worldwide trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Worldwide. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Based on momondo bookings for flights between Ontario and Worldwide, the leading plane model is Airbus A320neo, making up 14.60% of the total bookings. Other popular models include Airbus A321neo with 10.75%, Boeing 737-800 Passenger/BBJ2 (winglets) with 10.50%, and Boeing 737 MAX 8 with 8.54%.
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Worldwide from Ontario.
Yes. All flights to Worldwide from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.
Once you have performed a search for Ontario to Worldwide flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
If you are not ready to book a flight from Ontario to Worldwide now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Worldwide and let you know when they change.