Find Cheap Flights from United Kingdom to Ontario

Search hundreds of travel sites at once for deals on flights to Ontario

Sat 11/18
Sat 11/25
Any month
Compare vs. KAYAK |

Book cheap flights from United Kingdom to Ontario (round-trip)

Airports
Origin
London
$880
only
$880
Manchester
$768
only
$768
Destination
Ontario
$768
only
$768
Mon, Jan 22
MAN
ONT
49h 27m
Sat, Jan 27
ONT
MAN
40h 23m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Feb 23
MAN
ONT
21h 43m
Mon, Mar 5
ONT
MAN
19h 33m
Trip: 11 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
CPT
LHR
Good 6.6

Your staff were truly excellent, helpful and engaging.

My TV worked only intermittently and I therefore could not relax and enjoy the entertainment...

LHR
DEN
Excellent 8.0

I liked the fact that the customer service on board was pretty spectacular & very clean bathrooms.

It was extremely warm throughout the flight and the seats weren’t too comfortable.

DEN
LHR
Good 6.3

food was good

IFE was not good the equipment is very old and selection is limited

LHR
DEN
Excellent 10.0

plane was not full so plenty of room to move around etc

LHR
HYD
Excellent 8.0

The food on the flight was good.

The wheelchair assistance was very bad as no one turned up with a wheelchair. The airways really need to improve their service and make sure that whey they offering wheelchair assistance they in fact do it. This has happened serveral times that no one turned up at the London airport.

Fri, Feb 2
LHR
ONT
19h 23m
Mon, Feb 5
ONT
LHR
16h 25m
$1037
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1468 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.5
AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

AMS
SFO
Excellent 10.0

Loved the service...everything was excellent

The bus class seat was a bit narrow at the feet

JNB
AMS
Excellent 9.6

Comfort economy well worth the extra.

Tue, Apr 17
LHR
ONT
21h 16m
Tue, May 1
ONT
LHR
20h 00m
$1126
Trip: 15 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 920 reviews
Overall
8.1
Boarding
8.3
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.8
LAX
LHR
Mediocre 2.0

No one would update that the flight was delayed. They would not even communicate as to why delayed and would not put us in a different flight. Absolutely no customer service. Disappointed and would not fly jet airways again . I missed my conference lecture today as I was late.

No communication, nor will they tell you why it's late . Nor will they move you to another flight even wen requested

LHR
SFO
Good 6.0

Service is super fast

LHR
LAX
Excellent 9.6

The crew was friendly and professional, the food was good and offered frequently due to the long flight time (10.5 hours). The plane was comfortable even though nearly full. Overall, it was a good experience and I would definitely fly with Virgin Atlantic again.

LAX
SYD
Excellent 10.0

Met expectations.

Things out of your control - time !!

SEA
LHR
Excellent 8.6

Reasonably comfortable for a long jet ride. Helpful and considerate flight attendants.

The strange windows that kept it looking like night out until 30 minutes before we landed. I prefer the natural light to help readjust my time zones.

Tue, Dec 12
MAN
ONT
18h 15m
Wed, Dec 27
ONT
MAN
25h 25m
Trip: 16 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
BOS
LHR
Excellent 8.0

The food on the flight was good and the wheelchair assistance was good too.

LHR
DEN
Excellent 8.0

I liked the fact that the customer service on board was pretty spectacular & very clean bathrooms.

It was extremely warm throughout the flight and the seats weren’t too comfortable.

ORD
LHR
Good 6.6

Excellent vegan meal selection!

No Wifi, average movie selection, cramped space, 2+ hour delay (half of which was spent sitting on plane).

CPT
LHR
Good 6.6

Your staff were truly excellent, helpful and engaging.

My TV worked only intermittently and I therefore could not relax and enjoy the entertainment...

VIE
LHR
Excellent 8.0

punctuality

trapped on this plane for over 3 hours and they can't even spring for a lousy soda and bag of crisps.

Wed, Jan 10
MAN
ONT
18h 01m
Mon, Jan 22
ONT
MAN
17h 45m
Trip: 13 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
DEN
Excellent 8.0

I liked the fact that the customer service on board was pretty spectacular & very clean bathrooms.

It was extremely warm throughout the flight and the seats weren’t too comfortable.

LHR
DEN
Excellent 10.0

Everything

DEN
LHR
Good 6.3

food was good

IFE was not good the equipment is very old and selection is limited

CPT
LHR
Good 6.6

Your staff were truly excellent, helpful and engaging.

My TV worked only intermittently and I therefore could not relax and enjoy the entertainment...

LHR
BUD
Mediocre 2.6

Only card why?? No free food??

Sat, Feb 3
LHR
ONT
22h 31m
Mon, Feb 5
ONT
LHR
16h 25m
$1037
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1468 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.5
AMS
SFO
Excellent 10.0

Loved the service...everything was excellent

The bus class seat was a bit narrow at the feet

DMM
AMS
Okay 4.3

staff was fine

old old plane, very uncomfortable. Tiny bad screen made movies pointless

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

SVO
AMS
Okay 5.2

KLM can't seem to figure out the order of boarding the plane. Should be business - priority - everyone else. Instead they do priority first, and that's usually two-thirds of the passengers. Also, really tired of the fake business class on these flights...

MUC
AMS
Good 7.6

Great food

Sears we're toooo small

Mon, Jan 15
MAN
ONT
30h 41m
Fri, Jan 26
ONT
MAN
16h 15m
Trip: 12 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
BOS
LHR
Excellent 8.0

The food on the flight was good and the wheelchair assistance was good too.

LHR
BOS
Okay 5.6

Were very nice and accomodating

Entertainment only worked sporadiaclly, crew tried toreaet it numerous times

VIE
LHR
Excellent 8.0

punctuality

trapped on this plane for over 3 hours and they can't even spring for a lousy soda and bag of crisps.

LHR
DEN
Excellent 8.0

I liked the fact that the customer service on board was pretty spectacular & very clean bathrooms.

It was extremely warm throughout the flight and the seats weren’t too comfortable.

LHR
BUD
Mediocre 2.6

Only card why?? No free food??

Tue, Jan 16
MAN
ONT
18h 06m
Fri, Jan 26
ONT
MAN
16h 15m
Trip: 11 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
DEN
LHR
Good 6.3

food was good

IFE was not good the equipment is very old and selection is limited

LAS
LHR
Excellent 8.0

The flight was great. Business class is the way to go if it’s in your budget. However, the British Airways photos of business class does not quite reflect reality. It’s just a regular seat with more leg room.

ORD
LHR
Good 6.6

Excellent vegan meal selection!

No Wifi, average movie selection, cramped space, 2+ hour delay (half of which was spent sitting on plane).

CPT
LHR
Good 6.6

Your staff were truly excellent, helpful and engaging.

My TV worked only intermittently and I therefore could not relax and enjoy the entertainment...

LHR
BUD
Mediocre 2.6

Only card why?? No free food??

Thu, Dec 14
LHR
ONT
17h 33m
Wed, Dec 20
ONT
LHR
21h 45m
$1248
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 29
LHR
ONT
21h 16m
Mon, Jun 11
ONT
LHR
20h 00m
$1250
Trip: 14 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 920 reviews
Overall
8.1
Boarding
8.3
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.8
SFO
LHR
Good 7.6

food was good, and tvs in the seats.

wifi didnt work, was the whole reason i took this airline. most international flights are cold it was very hot

LHR
LAX
Excellent 9.6

The crew was friendly and professional, the food was good and offered frequently due to the long flight time (10.5 hours). The plane was comfortable even though nearly full. Overall, it was a good experience and I would definitely fly with Virgin Atlantic again.

BOS
LHR
Excellent 8.3

The food was AMAZING. No, seriously. Everything we had was great.

LHR
JNB
Mediocre 2.0

We were told over the phone that we could bring our kayaks with us to Africa but the airport staff denied not only our kayaks, but also our paddles which were in a standard ski bag. Their excuse was that both the kayaks and paddle bags were 2 inches too long. .. TWO INCHES!!!!!! We had record of the person we talked to and the time and date, but none of that seemed to matter. It caused A HUGE INCONVENIENCE for us since we are in Zambia for 6 weeks without our gear to paddle one of the most challenging rivers in the world... the Zambezi. Now we are constantly trying to acquire the proper equipment with very little success. We run a nonprofit called the Montana Kayak Academy which provides free whitewater instruction to youth between 8 &18 yrs old and we will be sure to tell everyone we know to NOT TRAVEL WITH EITHER VIRGIN ATLANTIC OR BRITISH AIRWAYS.... EVER!!! VERY DISAPPOINTED! !!!!!!!!!!!!!!!!!

SEA
LHR
Excellent 8.6

Reasonably comfortable for a long jet ride. Helpful and considerate flight attendants.

The strange windows that kept it looking like night out until 30 minutes before we landed. I prefer the natural light to help readjust my time zones.

Mon, Jan 8
MAN
ONT
30h 41m
Fri, Jan 19
ONT
MAN
16h 40m
Trip: 12 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
CPT
LHR
Good 6.6

Your staff were truly excellent, helpful and engaging.

My TV worked only intermittently and I therefore could not relax and enjoy the entertainment...

LHR
BOS
Okay 5.6

Were very nice and accomodating

Entertainment only worked sporadiaclly, crew tried toreaet it numerous times

ORD
LHR
Good 6.6

Excellent vegan meal selection!

No Wifi, average movie selection, cramped space, 2+ hour delay (half of which was spent sitting on plane).

LAS
LHR
Excellent 8.0

The flight was great. Business class is the way to go if it’s in your budget. However, the British Airways photos of business class does not quite reflect reality. It’s just a regular seat with more leg room.

LHR
DEN
Excellent 10.0

Everything

Fri, Jan 12
MAN
ONT
31h 43m
Wed, Jan 31
ONT
MAN
16h 45m
Trip: 20 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
CPT
LHR
Good 6.6

Your staff were truly excellent, helpful and engaging.

My TV worked only intermittently and I therefore could not relax and enjoy the entertainment...

LHR
BUD
Mediocre 2.6

Only card why?? No free food??

LHR
BOS
Okay 5.6

Were very nice and accomodating

Entertainment only worked sporadiaclly, crew tried toreaet it numerous times

LHR
HYD
Excellent 8.0

The food on the flight was good.

The wheelchair assistance was very bad as no one turned up with a wheelchair. The airways really need to improve their service and make sure that whey they offering wheelchair assistance they in fact do it. This has happened serveral times that no one turned up at the London airport.

LAS
LHR
Excellent 8.0

The flight was great. Business class is the way to go if it’s in your budget. However, the British Airways photos of business class does not quite reflect reality. It’s just a regular seat with more leg room.

Tue, May 8
LHR
ONT
19h 13m
Mon, May 28
ONT
LHR
15h 29m
$1338
Trip: 21 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1468 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.5
DMM
AMS
Okay 4.0

OLD OLD plane with hard seats and tiny screens

AMS
IAH
Good 7.3

Per usual, KLM can't seem to figure out the order of boarding the plane. Should be business - priority - everyone else. Instead they do priority first, and that's usually two-thirds of the passengers. Strange choice of in-flight movies; no accounting for taste, I guess.

JNB
AMS
Excellent 9.6

Comfort economy well worth the extra.

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

Sat, Dec 23
LHR
ONT
26h 53m
Sat, Dec 30
ONT
LHR
17h 25m
$1358
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 6
LHR
ONT
21h 16m
Fri, Apr 27
ONT
LHR
15h 40m
$1376
Trip: 22 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 920 reviews
Overall
8.1
Boarding
8.3
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.8
LHR
LAX
Excellent 9.6

The crew was friendly and professional, the food was good and offered frequently due to the long flight time (10.5 hours). The plane was comfortable even though nearly full. Overall, it was a good experience and I would definitely fly with Virgin Atlantic again.

LAX
LHR
Excellent 10.0

Seat is very comfortable

SFO
LHR
Excellent 10.0

Efficient, friendly, on-time!

BOS
LHR
Excellent 8.3

The food was AMAZING. No, seriously. Everything we had was great.

SYD
LAX
Excellent 9.0

After 14 hours the seats were like sitting on spikes

Tue, Dec 26
LHR
ONT
21h 29m
Thu, Jan 25
ONT
LHR
15h 40m
Trip: 31 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
DEN
Excellent 10.0

plane was not full so plenty of room to move around etc

DEN
LHR
Good 6.3

food was good

IFE was not good the equipment is very old and selection is limited

LHR
BOS
Okay 5.6

Were very nice and accomodating

Entertainment only worked sporadiaclly, crew tried toreaet it numerous times

ORD
LHR
Good 6.6

Excellent vegan meal selection!

No Wifi, average movie selection, cramped space, 2+ hour delay (half of which was spent sitting on plane).

CPT
LHR
Good 6.6

Your staff were truly excellent, helpful and engaging.

My TV worked only intermittently and I therefore could not relax and enjoy the entertainment...

Wed, May 9
LHR
ONT
18h 56m
Mon, May 28
ONT
LHR
15h 29m
$1338
Trip: 20 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1468 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.5
DMM
AMS
Okay 4.3

staff was fine

old old plane, very uncomfortable. Tiny bad screen made movies pointless

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

SVO
AMS
Okay 5.2

KLM can't seem to figure out the order of boarding the plane. Should be business - priority - everyone else. Instead they do priority first, and that's usually two-thirds of the passengers. Also, really tired of the fake business class on these flights...

ATL
CLE
Okay 4.0

OLD plane without comfort or entertainment

LHR
AMS
Good 7.6

I was pleasantly surprised they had a snack service on such a short flight. The flight attendants were very friendly

Amsterdam customs is the most disorganized I have ever seen. With the number of tourists entering the country you would think they would have done something about it. There were only 2 customs agents!! One for all passports and 1 for all passports. We were in the customs hall longer than we were in flight!

Mon, May 14
LHR
ONT
18h 56m
Mon, May 28
ONT
LHR
15h 29m
$1338
Trip: 15 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1468 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.5
DMM
AMS
Okay 4.0

OLD OLD plane with hard seats and tiny screens

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

JNB
AMS
Excellent 9.6

Comfort economy well worth the extra.

AMS
SFO
Excellent 10.0

Loved the service...everything was excellent

The bus class seat was a bit narrow at the feet

Wed, Feb 14
MAN
ONT
20h 03m
Sat, Feb 24
ONT
MAN
16h 30m
Trip: 11 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
BOS
LHR
Excellent 8.0

The food on the flight was good and the wheelchair assistance was good too.

LHR
DEN
Excellent 8.0

I liked the fact that the customer service on board was pretty spectacular & very clean bathrooms.

It was extremely warm throughout the flight and the seats weren’t too comfortable.

LHR
HYD
Excellent 8.0

The food on the flight was good.

The wheelchair assistance was very bad as no one turned up with a wheelchair. The airways really need to improve their service and make sure that whey they offering wheelchair assistance they in fact do it. This has happened serveral times that no one turned up at the London airport.

LHR
BUD
Mediocre 2.6

Only card why?? No free food??

DEN
LHR
Good 6.3

food was good

IFE was not good the equipment is very old and selection is limited

*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.