Find Cheap Flights from Oslo & other airports to Ontario (OSL - ONT)

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Sat 12/16
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Looking for a cheap flight? 25% of our users found flights on this route for $444 or less.

FAQs for Booking Oslo & other airports to Ontario Flights

How long does a flight from Oslo & other airports to Ontario take?
An average nonstop flight takes 29h 15m, covering a distance of 5307 miles.
Which airlines provide the cheapest flights from Oslo & other airports to Ontario?
In the past 3 days, the cheapest round-trip tickets were found on British Airways ($486)
Do I need a passport to fly between Oslo & other airports and Ontario?

Book cheap flights from Oslo & other airports to Ontario (round-trip)

Fri, May 18
29h 15m
Sat, May 26
45h 30m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13871 reviews
Okay 5.6

Good food and service once on flight and again fixed connections before landing

Terrible boarding experience. Rude gate workers and almost two hour delay because of it

Excellent 8.0

Able to stretch legs.

Quality of food served London to Los Angeles needs to be taken to a higher level.

Excellent 10.0

A bit late getting started but very nice after that.

Must you charge for tea?

Mediocre 2.0

Ticket price

It's third time British airways lost our baggage. Come on BA, you can do better than this!

Excellent 10.0

Service and Care with sense of humor! I have sat in both business and economy, and while I prefer the room in business, I still feel the service is just as wonderful in economy. I got all I asked for including bubbly in economy! I like to stay awake on the way back to the US and asked for two coffee's and a bubbly, a ginger and an OJ just before dinner & refills on cafe. Of course I thought I was pushing it to ask for it all at once, but they laughed, proceeded to fill my wishes and with a good sense of humor asked If I wanted anything else! I actually got everything I asked for! Super!

I pre bought my seat and chose an aisle. The plane was changed and I ended up in a window seat within the same row I had chosen on the other plane lay out. I prefer the aisle as I like to get up a lot and hate to annoy others who may prefer not to get up every time I do. I was lucky that the flight had plenty of empty seats and was able to move to an aisle after asking. What happens on a full flight? I would have been really upset. What is the point of pre-booking one' s seat? If the plane is changed, BA ought to take care to make sure a pre-booked seat gets a window/aisle near the row they chose. I suspect that is more important than the row on a long flight.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.