Find Cheap Flights from Dublin to Ontario (DUB - ONT)

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Looking for a cheap flight? 25% of our users found flights on this route for $596 or less.

FAQs for Booking Dublin to Ontario Flights

How long does a flight from Dublin to Ontario take?
An average nonstop flight takes 18h 56m, covering a distance of 5137 miles.
Which airlines provide the cheapest flights from Dublin to Ontario?
In the past 3 days, the cheapest round-trip tickets were found on British Airways ($482)
Do I need a passport to fly between Dublin and Ontario?
Yes.
What’s the cheapest day of the week to fly Dublin to Ontario?
For Dublin to Ontario, Wednesday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Ontario back to Dublin, the best deals are generally found on Tuesday, with Friday being the most expensive.

Book cheap flights from Dublin to Ontario (round-trip)

Airports
Origin
Dublin
$482
only
$482
Destination
Ontario
$482
only
$482
Wed, Feb 7
DUB
ONT
18h 56m
Wed, Feb 21
ONT
DUB
18h 15m
Trip: 15 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14905 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
IAD
LHR
Good 6.0

General sense of management and professionalism, punctuality.

Lack of attention to detail and general frugality

LHR
JFK
Excellent 8.0

Flight wasn’t full so it was great to be able to stretch out!

One older cabin female attendant was quite arrogant - otherwise all good!

PHL
BWI
Excellent 8.5

Very rapid flight. Landed far before scheduled arrival(at least 25 minutes). Checked baggage was delivered before schedule arrival time. Crew was pleasant/helpful.

Flight was changed from what was originally scheduled and purchased. I was informed of the change after the purchase before traveling. Thus I had 4 1/2 hours between flights.

LHR
JFK
Mediocre 3.6

Nothing about wheelchairs

When arrived they don't take wheelchairs

LHR
NBO
Okay 5.0

Boarding, friendly people in London and Hamburg

Flight attendants, plane, food

Tue, Apr 24
DUB
ONT
20h 31m
Wed, May 2
ONT
DUB
19h 49m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14905 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
SEA
LHR
Excellent 8.0

Quality of food

LHR
NBO
Okay 5.0

Boarding, friendly people in London and Hamburg

Flight attendants, plane, food

LHR
TLV
Okay 5.6

the staff

aircraft, food, entertainment

PHL
BWI
Excellent 8.5

Very rapid flight. Landed far before scheduled arrival(at least 25 minutes). Checked baggage was delivered before schedule arrival time. Crew was pleasant/helpful.

Flight was changed from what was originally scheduled and purchased. I was informed of the change after the purchase before traveling. Thus I had 4 1/2 hours between flights.

ORD
LHR
Excellent 9.3

the first flight from Chicago to London was great. very good aircraft.

Mon, May 21
DUB
ONT
20h 20m
Wed, May 30
ONT
DUB
19h 48m
Trip: 10 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14905 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
NBO
Okay 5.0

Boarding, friendly people in London and Hamburg

Flight attendants, plane, food

PHL
BWI
Excellent 8.5

Very rapid flight. Landed far before scheduled arrival(at least 25 minutes). Checked baggage was delivered before schedule arrival time. Crew was pleasant/helpful.

Flight was changed from what was originally scheduled and purchased. I was informed of the change after the purchase before traveling. Thus I had 4 1/2 hours between flights.

LHR
TLV
Okay 5.6

the staff

aircraft, food, entertainment

ORD
LHR
Excellent 9.3

the first flight from Chicago to London was great. very good aircraft.

LHR
JFK
Excellent 8.0

Flight wasn’t full so it was great to be able to stretch out!

One older cabin female attendant was quite arrogant - otherwise all good!

Thu, Jul 5
DUB
ONT
20h 20m
Mon, Jul 16
ONT
DUB
19h 48m
Trip: 12 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14905 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
NBO
Okay 5.0

Boarding, friendly people in London and Hamburg

Flight attendants, plane, food

LHR
JFK
Excellent 8.0

Flight wasn’t full so it was great to be able to stretch out!

One older cabin female attendant was quite arrogant - otherwise all good!

SEA
LHR
Excellent 8.0

Quality of food

LHR
FCO
Excellent 10.0

Friendly crew. Good day in the skies.

ORD
LHR
Excellent 9.3

the first flight from Chicago to London was great. very good aircraft.

Tue, Jul 31
DUB
ONT
20h 20m
Wed, Aug 22
ONT
DUB
17h 23m
Trip: 23 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14905 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
AUH
LHR
Excellent 10.0

I arrived safely and on time

Audio plug for my seat was broken, but I slept so it worked out Kay.

PHL
BWI
Excellent 8.5

Very rapid flight. Landed far before scheduled arrival(at least 25 minutes). Checked baggage was delivered before schedule arrival time. Crew was pleasant/helpful.

Flight was changed from what was originally scheduled and purchased. I was informed of the change after the purchase before traveling. Thus I had 4 1/2 hours between flights.

LHR
JFK
Mediocre 3.6

Nothing about wheelchairs

When arrived they don't take wheelchairs

IAD
LHR
Good 6.0

General sense of management and professionalism, punctuality.

Lack of attention to detail and general frugality

ORD
LHR
Excellent 9.3

the first flight from Chicago to London was great. very good aircraft.

Dublin to Ontario Flight Information

Flights Arrive in Ontario
Flights Depart from Dublin
Flight Price $482
Distance 5137 miles
Airlines British Airways
*
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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.