When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 45 days in advance, which can save you up to 76% on flights from Ontario to USA compared to booking the week you need them. Waiting 45 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $378. For sooner than that we have options available in the next 3 days from $537.
January can be a great time to fly to USA from Ontario with a flight ticket averaging about $338. Cheapflights users have found deals in the month of January for as cheap as $122. The most expensive prices can be found in the month of December.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to USA as you normally would.
Fly from
Fly to
Budget
$38 - $120
Route
Depart
Return
Price
OntarioLas Vegas Harry Reid Intl
ONT - LAS
ONTLAS
Ontario
Wed 5/1
Nonstop1h 09m
Las Vegas Harry Reid Intl
Wed 5/8
Nonstop1h 03m
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Sat 5/4
Nonstop1h 28m
San Francisco
Tue 5/7
Nonstop1h 29m
OntarioLas Vegas Harry Reid Intl
ONT - LAS
ONTLAS
Ontario
Wed 5/1
Nonstop1h 09m
Las Vegas Harry Reid Intl
Wed 5/1
Nonstop1h 02m
OntarioLas Vegas Harry Reid Intl
ONT - LAS
ONTLAS
Ontario
Sun 4/28
Nonstop1h 10m
Las Vegas Harry Reid Intl
Thu 5/2
Nonstop1h 02m
OntarioLas Vegas Harry Reid Intl
ONT - LAS
ONTLAS
Ontario
Mon 4/29
Nonstop1h 09m
Las Vegas Harry Reid Intl
Thu 5/2
Nonstop1h 02m
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Tue 4/30
Nonstop1h 27m
San Francisco
Tue 5/7
Nonstop1h 29m
OntarioLas Vegas Harry Reid Intl
ONT - LAS
ONTLAS
Ontario
Mon 5/13
Nonstop1h 09m
Las Vegas Harry Reid Intl
Wed 5/15
Nonstop1h 04m
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Sat 5/18
Nonstop1h 28m
San Francisco
Tue 5/21
Nonstop1h 24m
OntarioLas Vegas Harry Reid Intl
ONT - LAS
ONTLAS
Ontario
Fri 5/3
1 stop14h 07m
Las Vegas Harry Reid Intl
Sun 5/5
Nonstop1h 03m
No data available for this route at this time. Please check back soon.
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
22%of flight departures | Early morningMidnight to 6 am |
---|---|
54%of flight departures | Morning6 am to noon |
15%of flight departures | AfternoonNoon to 6 pm |
9%of flight departures | Evening6 pm to midnight |
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