Find Cheap Flights from Europe to Ontario

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Thu 11/23
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Book cheap flights from Europe to Ontario (round-trip)

Airports
Origin
Oslo
$426
only
$426
Milan
$501
only
$501
Dublin
$612
only
$612
Paris
$535
only
$535
Venice
$480
only
$480
Destination
Ontario
$426
only
$426
Sat, May 5
OSL
ONT
20h 33m
Sat, May 19
ONT
OSL
23h 35m
Trip: 15 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
SFO
LHR
Excellent 10.0

Everything

ATH
LHR
Okay 5.0

Not much.

Pay for food on BA? They didn't even offer free water.

LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

LHR
PHX
Good 7.0

Wheelchair was not provided at London and Phoenix locations.

MAD
LHR
Mediocre 2.0

Got us (but not our bags) to Seattle. Wanted ro charge for water--are you kidding me??

Abysmally awful customer service--way beyond rude and not at all helpful.

Fri, Dec 8
DUB
ONT
31h 23m
Wed, Dec 13
ONT
DUB
18h 15m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Fri, May 18
OSL
ONT
34h 43m
Sat, May 26
ONT
OSL
21h 30m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
MAD
LHR
Mediocre 2.0

Got us (but not our bags) to Seattle. Wanted ro charge for water--are you kidding me??

Abysmally awful customer service--way beyond rude and not at all helpful.

LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

ATH
LHR
Okay 5.0

Not much.

Pay for food on BA? They didn't even offer free water.

SFO
LHR
Excellent 10.0

Everything

LIN
LHR
Excellent 10.0

excellent, efficient, clean, professional

partnering with American Airlines is a crime and an offense.

Sat, Apr 28
VCE
ONT
21h 05m
Sat, May 12
ONT
VCE
20h 58m
Trip: 15 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
CDG
Good 6.0

You charged me for coffe after flying all night

SEA
LHR
Okay 4.0

The flight was cancelled, it was very difficult for me to do all rearrangements.

MAD
LHR
Mediocre 2.0

Got us (but not our bags) to Seattle. Wanted ro charge for water--are you kidding me??

Abysmally awful customer service--way beyond rude and not at all helpful.

LIN
LHR
Excellent 10.0

excellent, efficient, clean, professional

partnering with American Airlines is a crime and an offense.

LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

Sat, Apr 21
VCE
ONT
24h 23m
Sun, Apr 29
ONT
VCE
26h 06m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LIN
LHR
Excellent 10.0

excellent, efficient, clean, professional

partnering with American Airlines is a crime and an offense.

LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

TLV
LHR
Good 6.0

The new flight procedures informational film at the beginning of the flight (BA/Comic Relief)

The flight was to Heathrow which was not prepared to accept us at all. We waited 45 minutes in passport control. I expect BA to make sure the port of destination is prepared to receive its passengers

LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

SFO
LHR
Excellent 10.0

Everything

Tue, Mar 27
VCE
ONT
21h 05m
Fri, Apr 6
ONT
VCE
24h 10m
Trip: 11 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LIN
LHR
Excellent 10.0

excellent, efficient, clean, professional

partnering with American Airlines is a crime and an offense.

LHR
PHX
Good 7.0

Wheelchair was not provided at London and Phoenix locations.

LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

SEA
LHR
Okay 4.0

The flight was cancelled, it was very difficult for me to do all rearrangements.

LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

Fri, Jan 12
LIN
ONT
21h 18m
Sat, Jan 20
ONT
LIN
18h 20m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
SFO
LHR
Excellent 10.0

Everything

ATH
LHR
Okay 5.0

Not much.

Pay for food on BA? They didn't even offer free water.

LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

SEA
LHR
Okay 4.0

The flight was cancelled, it was very difficult for me to do all rearrangements.

LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

Thu, Dec 7
OSL
ONT
19h 45m
Tue, Dec 12
ONT
OSL
19h 45m
Trip: 6 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
SJC
Good 6.3

delay too long

SEA
LHR
Okay 4.0

The flight was cancelled, it was very difficult for me to do all rearrangements.

LOS
LHR
Excellent 10.0

On time

SFO
LHR
Excellent 10.0

Everything

TLV
LHR
Good 6.0

The new flight procedures informational film at the beginning of the flight (BA/Comic Relief)

The flight was to Heathrow which was not prepared to accept us at all. We waited 45 minutes in passport control. I expect BA to make sure the port of destination is prepared to receive its passengers

Sun, May 13
VCE
ONT
24h 23m
Tue, May 22
ONT
VCE
21h 00m
Trip: 10 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
SJC
Good 6.3

delay too long

LOS
LHR
Excellent 10.0

On time

LHR
PHX
Good 7.0

Wheelchair was not provided at London and Phoenix locations.

MAD
LHR
Mediocre 2.0

Got us (but not our bags) to Seattle. Wanted ro charge for water--are you kidding me??

Abysmally awful customer service--way beyond rude and not at all helpful.

ATH
LHR
Okay 5.0

Not much.

Pay for food on BA? They didn't even offer free water.

Sat, May 19
VCE
ONT
21h 05m
Fri, Jun 1
ONT
VCE
27h 43m
Trip: 14 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

LHR
SJC
Good 6.3

delay too long

TLV
LHR
Good 6.0

The new flight procedures informational film at the beginning of the flight (BA/Comic Relief)

The flight was to Heathrow which was not prepared to accept us at all. We waited 45 minutes in passport control. I expect BA to make sure the port of destination is prepared to receive its passengers

ATH
LHR
Okay 5.0

Not much.

Pay for food on BA? They didn't even offer free water.

LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

Fri, Jan 12
CDG
ONT
18h 08m
Mon, Jan 15
ONT
CDG
20h 10m
Trip: 4 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
SFO
LHR
Excellent 10.0

Everything

MAD
LHR
Mediocre 2.0

Got us (but not our bags) to Seattle. Wanted ro charge for water--are you kidding me??

Abysmally awful customer service--way beyond rude and not at all helpful.

LHR
PHX
Good 7.0

Wheelchair was not provided at London and Phoenix locations.

ATH
LHR
Okay 5.0

Not much.

Pay for food on BA? They didn't even offer free water.

TLV
LHR
Good 6.0

The new flight procedures informational film at the beginning of the flight (BA/Comic Relief)

The flight was to Heathrow which was not prepared to accept us at all. We waited 45 minutes in passport control. I expect BA to make sure the port of destination is prepared to receive its passengers

Wed, Jan 17
CDG
ONT
16h 06m
Sat, Jan 27
ONT
CDG
17h 50m
Trip: 11 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
PHX
Good 7.0

Wheelchair was not provided at London and Phoenix locations.

LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

LHR
SJC
Good 6.3

delay too long

LIN
LHR
Excellent 10.0

excellent, efficient, clean, professional

partnering with American Airlines is a crime and an offense.

LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

Fri, Jan 19
CDG
ONT
18h 08m
Sun, Jan 28
ONT
CDG
17h 50m
Trip: 10 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

LHR
CDG
Good 6.0

You charged me for coffe after flying all night

LHR
SJC
Good 6.3

delay too long

LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

MAD
LHR
Mediocre 2.0

Got us (but not our bags) to Seattle. Wanted ro charge for water--are you kidding me??

Abysmally awful customer service--way beyond rude and not at all helpful.

Sun, Jan 21
CDG
ONT
18h 08m
Sun, Jan 28
ONT
CDG
17h 50m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
SEA
LHR
Okay 4.0

The flight was cancelled, it was very difficult for me to do all rearrangements.

LHR
SJC
Good 6.3

delay too long

LIN
LHR
Excellent 10.0

excellent, efficient, clean, professional

partnering with American Airlines is a crime and an offense.

TLV
LHR
Good 6.0

The new flight procedures informational film at the beginning of the flight (BA/Comic Relief)

The flight was to Heathrow which was not prepared to accept us at all. We waited 45 minutes in passport control. I expect BA to make sure the port of destination is prepared to receive its passengers

ATH
LHR
Okay 5.0

Not much.

Pay for food on BA? They didn't even offer free water.

Sat, Dec 16
CDG
ONT
18h 16m
Fri, Dec 29
ONT
CDG
16h 50m
Trip: 14 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

LOS
LHR
Excellent 10.0

On time

LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

MAD
LHR
Mediocre 2.0

Got us (but not our bags) to Seattle. Wanted ro charge for water--are you kidding me??

Abysmally awful customer service--way beyond rude and not at all helpful.

ATH
LHR
Okay 5.0

Not much.

Pay for food on BA? They didn't even offer free water.

Sun, Dec 17
CDG
ONT
21h 34m
Fri, Dec 29
ONT
CDG
16h 50m
Trip: 13 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
SEA
LHR
Okay 4.0

The flight was cancelled, it was very difficult for me to do all rearrangements.

LIN
LHR
Excellent 10.0

excellent, efficient, clean, professional

partnering with American Airlines is a crime and an offense.

SFO
LHR
Excellent 10.0

Everything

TLV
LHR
Good 6.0

The new flight procedures informational film at the beginning of the flight (BA/Comic Relief)

The flight was to Heathrow which was not prepared to accept us at all. We waited 45 minutes in passport control. I expect BA to make sure the port of destination is prepared to receive its passengers

LHR
CDG
Good 6.0

You charged me for coffe after flying all night

Mon, Dec 18
CDG
ONT
21h 34m
Fri, Dec 29
ONT
CDG
16h 50m
Trip: 12 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
TLV
LHR
Good 6.0

The new flight procedures informational film at the beginning of the flight (BA/Comic Relief)

The flight was to Heathrow which was not prepared to accept us at all. We waited 45 minutes in passport control. I expect BA to make sure the port of destination is prepared to receive its passengers

LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

LHR
PHX
Good 7.0

Wheelchair was not provided at London and Phoenix locations.

MAD
LHR
Mediocre 2.0

Got us (but not our bags) to Seattle. Wanted ro charge for water--are you kidding me??

Abysmally awful customer service--way beyond rude and not at all helpful.

LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

Fri, May 18
VCE
ONT
24h 23m
Fri, Jun 1
ONT
VCE
27h 43m
Trip: 15 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

SFO
LHR
Excellent 10.0

Everything

SEA
LHR
Okay 4.0

The flight was cancelled, it was very difficult for me to do all rearrangements.

LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

TLV
LHR
Good 6.0

The new flight procedures informational film at the beginning of the flight (BA/Comic Relief)

The flight was to Heathrow which was not prepared to accept us at all. We waited 45 minutes in passport control. I expect BA to make sure the port of destination is prepared to receive its passengers

Thu, Jan 18
CDG
ONT
21h 33m
Sun, Jan 28
ONT
CDG
20h 35m
Trip: 11 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
ATH
LHR
Okay 5.0

Not much.

Pay for food on BA? They didn't even offer free water.

SEA
LHR
Okay 4.0

The flight was cancelled, it was very difficult for me to do all rearrangements.

LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

LHR
PHX
Good 7.0

Wheelchair was not provided at London and Phoenix locations.

TLV
LHR
Good 6.0

The new flight procedures informational film at the beginning of the flight (BA/Comic Relief)

The flight was to Heathrow which was not prepared to accept us at all. We waited 45 minutes in passport control. I expect BA to make sure the port of destination is prepared to receive its passengers

Sat, Jan 20
CDG
ONT
19h 31m
Sun, Jan 28
ONT
CDG
17h 50m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
TLV
LHR
Good 6.0

The new flight procedures informational film at the beginning of the flight (BA/Comic Relief)

The flight was to Heathrow which was not prepared to accept us at all. We waited 45 minutes in passport control. I expect BA to make sure the port of destination is prepared to receive its passengers

LIN
LHR
Excellent 10.0

excellent, efficient, clean, professional

partnering with American Airlines is a crime and an offense.

LOS
LHR
Excellent 10.0

On time

ATH
LHR
Okay 5.0

Not much.

Pay for food on BA? They didn't even offer free water.

LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

*
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