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

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Looking for a cheap flight? 25% of our users found flights on this route for $752 or less.

FAQs for Booking Ontario to Oslo & other airports Flights

How long does a flight from Ontario to Oslo & other airports take?
An average nonstop flight takes 19h 45m, covering a distance of 5307 miles.
Which airlines provide the cheapest flights from Ontario to Oslo & other airports?
In the past 3 days, the cheapest round-trip tickets were found on British Airways ($512)
Do I need a passport to fly between Ontario and Oslo & other airports?
Yes.
What’s the cheapest day of the week to fly Ontario to Oslo & other airports?
For Ontario to Oslo & other airports, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Oslo & other airports back to Ontario, the best deals are generally found on Thursday, with Wednesday being the most expensive.

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

Airports
Origin
Ontario
$512
only
$512
Destination
Oslo
$512
only
$512
Wed, Apr 18
ONT
OSL
24h 48m
Sun, May 13
OSL
ONT
21h 05m
Trip: 26 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14842 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
JFK
LHR
Okay 4.6

The re-routed , 5 hr late, flight (to Gatwick) was comfortable but we were left to track down BA reps to get a hotel voucher at 01:30 with the airport shut down.

Abandoned at Gatwick after midnight.

BCN
LHR
Excellent 10.0

Nice, smooth, quick flight.

DEN
LHR
Excellent 8.3

Entertainment, blanket

Not enough leg room, chocolate dessert

SOF
LHR
Excellent 10.0

Everything

LHR
SFO
Excellent 9.6

The drinks were great, however the food specifically the salmon meal (Great Britain breakfast) seemed to be missing something. The stewardess mentioned my partner to have the chicken as there was only a portion of the meal. But, I paid £24 for the meal. Although, the vegan and veggie meals were great!

Next time I will pay more attention to the two row seating and pay for seats in that area of the plane. Other than that, good service.

Sat, May 26
ONT
OSL
20h 58m
Sat, Jun 2
OSL
ONT
24h 23m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14842 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
SOF
LHR
Excellent 10.0

Everything

LHR
LAX
Excellent 10.0

The crew made your needs a top priority which was nice. This trip was my first time flying British Airways, I normally fly United, but the price was too good to pass up. I will definitely be using BA in the future from now on. Overall a great experience!

None! All pros!

LAX
LHR
Mediocre 3.3

My husband and I paid a combined $100 to reserve seats on our flight from LAX to London. When we got to check-in at LAX airport we did not get our reserved seats. Everything had been changed around. We did not even have seats next to each other. Upon complaining at arrival in London (there was no time at LAX to deal with this, as usual that airport was one chaotic mess) we were given a British Airways business card with a phone number that did not work/had been disconnected. I would like to get the $100 reservation fee back. Thank you.

DEN
LHR
Excellent 8.3

Entertainment, blanket

Not enough leg room, chocolate dessert

LHR
AUS
Okay 4.6

The movie and television options were fairly good.

I usually enjoy the BA flight from London to Austin, but this flight was extremely uncomfortable. The seats were cramped, and when the woman in front of me leaned her seat back, I didn't have enough space on my tray table to even keep a laptop fully open. The food (chicken casserole) was also terrible, and the airline ran out of other lunch options by the time they got to the back row where I was seated.

Sat, Mar 24
ONT
OSL
48h 40m
Sun, Apr 1
OSL
ONT
29h 45m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14842 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
BWI
Okay 5.6

Boarding was seamless and straightforward

Crew - Mostly men that looked like they hated their jobs. They were mostly unfriendly, and getting any of them to crack a smile was like pulling teeth.

JFK
LHR
Okay 4.6

The re-routed , 5 hr late, flight (to Gatwick) was comfortable but we were left to track down BA reps to get a hotel voucher at 01:30 with the airport shut down.

Abandoned at Gatwick after midnight.

LHR
AUS
Okay 4.6

The movie and television options were fairly good.

I usually enjoy the BA flight from London to Austin, but this flight was extremely uncomfortable. The seats were cramped, and when the woman in front of me leaned her seat back, I didn't have enough space on my tray table to even keep a laptop fully open. The food (chicken casserole) was also terrible, and the airline ran out of other lunch options by the time they got to the back row where I was seated.

LHR
SFO
Excellent 9.6

The drinks were great, however the food specifically the salmon meal (Great Britain breakfast) seemed to be missing something. The stewardess mentioned my partner to have the chicken as there was only a portion of the meal. But, I paid £24 for the meal. Although, the vegan and veggie meals were great!

Next time I will pay more attention to the two row seating and pay for seats in that area of the plane. Other than that, good service.

LHR
LAX
Excellent 10.0

The crew made your needs a top priority which was nice. This trip was my first time flying British Airways, I normally fly United, but the price was too good to pass up. I will definitely be using BA in the future from now on. Overall a great experience!

None! All pros!

Wed, Jan 24
ONT
OSL
19h 45m
Wed, Jan 31
OSL
ONT
34h 26m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14842 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
SFO
Excellent 9.6

The drinks were great, however the food specifically the salmon meal (Great Britain breakfast) seemed to be missing something. The stewardess mentioned my partner to have the chicken as there was only a portion of the meal. But, I paid £24 for the meal. Although, the vegan and veggie meals were great!

Next time I will pay more attention to the two row seating and pay for seats in that area of the plane. Other than that, good service.

LAX
LHR
Mediocre 3.3

My husband and I paid a combined $100 to reserve seats on our flight from LAX to London. When we got to check-in at LAX airport we did not get our reserved seats. Everything had been changed around. We did not even have seats next to each other. Upon complaining at arrival in London (there was no time at LAX to deal with this, as usual that airport was one chaotic mess) we were given a British Airways business card with a phone number that did not work/had been disconnected. I would like to get the $100 reservation fee back. Thank you.

LHR
AUS
Okay 4.6

The movie and television options were fairly good.

I usually enjoy the BA flight from London to Austin, but this flight was extremely uncomfortable. The seats were cramped, and when the woman in front of me leaned her seat back, I didn't have enough space on my tray table to even keep a laptop fully open. The food (chicken casserole) was also terrible, and the airline ran out of other lunch options by the time they got to the back row where I was seated.

LHR
LAX
Excellent 10.0

The crew made your needs a top priority which was nice. This trip was my first time flying British Airways, I normally fly United, but the price was too good to pass up. I will definitely be using BA in the future from now on. Overall a great experience!

None! All pros!

DEN
LHR
Excellent 8.3

Entertainment, blanket

Not enough leg room, chocolate dessert

Tue, May 1
ONT
OSL
23h 40m
Sun, May 6
OSL
ONT
24h 23m
Trip: 6 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14842 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LAX
LHR
Mediocre 3.3

My husband and I paid a combined $100 to reserve seats on our flight from LAX to London. When we got to check-in at LAX airport we did not get our reserved seats. Everything had been changed around. We did not even have seats next to each other. Upon complaining at arrival in London (there was no time at LAX to deal with this, as usual that airport was one chaotic mess) we were given a British Airways business card with a phone number that did not work/had been disconnected. I would like to get the $100 reservation fee back. Thank you.

LHR
AUS
Okay 4.6

The movie and television options were fairly good.

I usually enjoy the BA flight from London to Austin, but this flight was extremely uncomfortable. The seats were cramped, and when the woman in front of me leaned her seat back, I didn't have enough space on my tray table to even keep a laptop fully open. The food (chicken casserole) was also terrible, and the airline ran out of other lunch options by the time they got to the back row where I was seated.

JFK
LHR
Okay 4.6

The re-routed , 5 hr late, flight (to Gatwick) was comfortable but we were left to track down BA reps to get a hotel voucher at 01:30 with the airport shut down.

Abandoned at Gatwick after midnight.

LHR
SFO
Excellent 9.6

The drinks were great, however the food specifically the salmon meal (Great Britain breakfast) seemed to be missing something. The stewardess mentioned my partner to have the chicken as there was only a portion of the meal. But, I paid £24 for the meal. Although, the vegan and veggie meals were great!

Next time I will pay more attention to the two row seating and pay for seats in that area of the plane. Other than that, good service.

DEN
LHR
Excellent 8.3

Entertainment, blanket

Not enough leg room, chocolate dessert

Sun, Feb 4
ONT
OSL
23h 25m
Sun, Feb 11
OSL
ONT
21h 43m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14842 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
AUS
Okay 4.6

The movie and television options were fairly good.

I usually enjoy the BA flight from London to Austin, but this flight was extremely uncomfortable. The seats were cramped, and when the woman in front of me leaned her seat back, I didn't have enough space on my tray table to even keep a laptop fully open. The food (chicken casserole) was also terrible, and the airline ran out of other lunch options by the time they got to the back row where I was seated.

LAS
LHR
Excellent 10.0

cheaper pricing

no mention of visa entry to US when I booked my trip !! caused me all sorts of problems .... you must make double and triple check that when booking a ticket to a country that requires a visa it is a 'click to accept' thanks

BCN
LHR
Excellent 10.0

Nice, smooth, quick flight.

LAX
LHR
Mediocre 3.3

My husband and I paid a combined $100 to reserve seats on our flight from LAX to London. When we got to check-in at LAX airport we did not get our reserved seats. Everything had been changed around. We did not even have seats next to each other. Upon complaining at arrival in London (there was no time at LAX to deal with this, as usual that airport was one chaotic mess) we were given a British Airways business card with a phone number that did not work/had been disconnected. I would like to get the $100 reservation fee back. Thank you.

LHR
BWI
Okay 5.6

Boarding was seamless and straightforward

Crew - Mostly men that looked like they hated their jobs. They were mostly unfriendly, and getting any of them to crack a smile was like pulling teeth.

Sun, Jun 17
ONT
OSL
24h 53m
Sat, Jul 7
OSL
ONT
24h 23m
Trip: 21 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14842 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
SOF
LHR
Excellent 10.0

Everything

LAX
LHR
Mediocre 3.3

My husband and I paid a combined $100 to reserve seats on our flight from LAX to London. When we got to check-in at LAX airport we did not get our reserved seats. Everything had been changed around. We did not even have seats next to each other. Upon complaining at arrival in London (there was no time at LAX to deal with this, as usual that airport was one chaotic mess) we were given a British Airways business card with a phone number that did not work/had been disconnected. I would like to get the $100 reservation fee back. Thank you.

BCN
LHR
Excellent 10.0

Nice, smooth, quick flight.

LHR
BWI
Okay 5.6

Boarding was seamless and straightforward

Crew - Mostly men that looked like they hated their jobs. They were mostly unfriendly, and getting any of them to crack a smile was like pulling teeth.

LHR
LAX
Excellent 10.0

The crew made your needs a top priority which was nice. This trip was my first time flying British Airways, I normally fly United, but the price was too good to pass up. I will definitely be using BA in the future from now on. Overall a great experience!

None! All pros!

Sat, Apr 21
ONT
OSL
35h 24m
Tue, Apr 24
OSL
ONT
33h 50m
Trip: 4 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14842 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
BWI
Okay 5.6

Boarding was seamless and straightforward

Crew - Mostly men that looked like they hated their jobs. They were mostly unfriendly, and getting any of them to crack a smile was like pulling teeth.

BOS
LHR
Good 6.0

Airline accommodated the delay with free room and meal voucher.

Flight was delayed 24 hours. Text message was sent on route that the flight was on time. Mechanical problems.

SOF
LHR
Excellent 10.0

Everything

BCN
LHR
Excellent 10.0

Nice, smooth, quick flight.

LHR
SFO
Excellent 9.6

The drinks were great, however the food specifically the salmon meal (Great Britain breakfast) seemed to be missing something. The stewardess mentioned my partner to have the chicken as there was only a portion of the meal. But, I paid £24 for the meal. Although, the vegan and veggie meals were great!

Next time I will pay more attention to the two row seating and pay for seats in that area of the plane. Other than that, good service.

*
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Ontario to Oslo & other airports Flight Information

Flights Arrive in Oslo & other airports
Flights Depart from Ontario
Flight Price $512
Distance 5307 miles
Airlines British Airways