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Cheap flights from Dublin to Los Angeles from $374

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Los Angeles departing on 8/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Dublin to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
11:30 am - 10:35 pm
DUB
-
ONT
19h 05m
1 stop
JetBlue Logo
11:24 pm - 9:00 am
ONT
-
DUB
25h 36m
1 stop
$666JetBlue
Thu, Aug 20 - Sat, Aug 29
British Airways Logo
8:50 am - 11:55 pm
DUB
-
ONT
23h 05m
2 stops
British Airways Logo
2:56 pm - 7:40 pm
ONT
-
DUB
20h 44m
2 stops
$692British Airways
Thu, Dec 3 - Sun, Dec 6
British Airways Logo
8:50 am - 11:55 pm
DUB
-
ONT
23h 05m
2 stops
British Airways Logo
2:56 pm - 7:40 pm
ONT
-
DUB
20h 44m
2 stops
$693British Airways
Thu, Dec 3 - Sun, Dec 6
British Airways Logo
8:50 am - 10:19 pm
DUB
-
ONT
21h 29m
2 stops
British Airways Logo
2:56 pm - 4:50 pm
ONT
-
DUB
17h 54m
2 stops
$694British Airways
Thu, Dec 3 - Sun, Dec 6
KLM Logo
9:45 am - 6:18 pm
DUB
-
ONT
16h 33m
1 stop
KLM Logo
7:00 am - 7:45 am
ONT
-
DUB
16h 45m
1 stop
$705KLM
Wed, Nov 4 - Sun, Nov 8
Iberia Logo
12:40 pm - 6:57 pm
DUB
-
ONT
14h 17m
1 stop
Iberia Logo
7:20 am - 7:15 am
ONT
-
DUB
16h 55m
1 stop
$710Iberia
Thu, Oct 15 - Mon, Oct 26
American Airlines Logo
12:40 pm - 6:47 pm
DUB
-
ONT
14h 07m
1 stop
American Airlines Logo
12:37 pm - 9:45 am
ONT
-
DUB
13h 08m
1 stop
$711American Airlines
Tue, Sep 1 - Thu, Sep 10
Multiple Airlines Logo
11:00 am - 7:57 pm
DUB
-
ONT
16h 57m
1 stop
Multiple Airlines Logo
12:00 pm - 8:45 am
ONT
-
DUB
12h 45m
1 stop
$712Multiple Airlines
Wed, Sep 30 - Mon, Oct 12
JetBlue Logo
11:30 am - 10:35 pm
DUB
-
ONT
19h 05m
1 stop
JetBlue Logo
11:24 pm - 9:00 am
ONT
-
DUB
25h 36m
1 stop
$741JetBlue
Fri, Aug 21 - Sat, Aug 29
American Airlines Logo
12:40 pm - 6:47 pm
DUB
-
ONT
14h 07m
1 stop
American Airlines Logo
12:33 pm - 9:45 am
ONT
-
DUB
13h 12m
1 stop
$745American Airlines
Tue, Aug 25 - Tue, Sep 1

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United Airlines flights from Dublin to Ontario

Our best United Airlines deals on Dublin to Ontario flight tickets
United Airlines
Nov 25
DUB10:40 amDublin
20h 26m
2 stops
ONT11:06 pmOntario
Jan 9
ONT5:00 amOntario
18h 30m
2 stops
DUB7:30 amDublin
$755
United Airlines
Jul 4
DUB11:35 amDublin
19h 16m
1 stop
ONT10:51 pmOntario
Jul 26
ONT6:10 amOntario
17h 35m
2 stops
DUB7:45 amDublin
$906
United Airlines
Jul 17
DUB11:35 amDublin
19h 02m
2 stops
ONT10:37 pmOntario
Jul 26
ONT6:10 amOntario
17h 35m
2 stops
DUB7:45 amDublin
$944

KLM flights from Dublin to Ontario

Our best KLM deals on Dublin to Ontario flight tickets
KLM
Nov 4
DUB9:45 amDublin
16h 33m
1 stop
ONT6:18 pmOntario
Nov 8
ONT7:00 amOntario
16h 45m
1 stop
DUB7:45 amDublin
$705
KLM
Sep 30
DUB11:00 amDublin
16h 57m
1 stop
ONT7:57 pmOntario
Oct 12
ONT1:00 pmOntario
15h 40m
2 stops
DUB12:40 pmDublin
$824
KLM
Sep 17
DUB11:00 amDublin
19h 26m
1 stop
ONT10:26 pmOntario
Oct 8
ONT7:00 amOntario
18h 15m
2 stops
DUB9:15 amDublin
$829

momondo Fare Finder

 
Customize your flight search to find flights from Dublin to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 19, 2026.
Use the filters below to find and compare flights from Dublin to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 8/20

11:30 am-10:35 pm

1 stop19h 05m

Ontario

Sat 8/29

11:24 pm-9:00 am

1 stop25h 36m

$666

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 12/3

8:50 am-11:55 pm

2 stops23h 05m

Ontario

Sun 12/6

2:56 pm-7:40 pm

2 stops20h 44m

$692

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 12/3

8:50 am-11:55 pm

2 stops23h 05m

Ontario

Sun 12/6

2:56 pm-7:40 pm

2 stops20h 44m

$693

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 12/3

8:50 am-10:19 pm

2 stops21h 29m

Ontario

Sun 12/6

2:56 pm-4:50 pm

2 stops17h 54m

$694

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 11/4

9:45 am-6:18 pm

1 stop16h 33m

Ontario

Sun 11/8

7:00 am-7:45 am

1 stop16h 45m

$705

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 10/15

12:40 pm-6:57 pm

1 stop14h 17m

Ontario

Mon 10/26

7:20 am-7:15 am

1 stop16h 55m

$710
Quickest round-trip

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 9/1

12:40 pm-6:47 pm

1 stop14h 07m

Ontario

Thu 9/10

12:37 pm-9:45 am

1 stop13h 08m

$711

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 9/30

11:00 am-7:57 pm

1 stop16h 57m

Ontario

Mon 10/12

12:00 pm-8:45 am

1 stop12h 45m

$712

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 8/21

11:30 am-10:35 pm

1 stop19h 05m

Ontario

Sat 8/29

11:24 pm-9:00 am

1 stop25h 36m

$741

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 8/25

12:40 pm-6:47 pm

1 stop14h 07m

Ontario

Tue 9/1

12:33 pm-9:45 am

1 stop13h 12m

$745

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

How to get the cheapest flight ticket from Dublin to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Dublin to Ontario flights?

You could potentially save up to 36% on your flight if you consider stops on a Dublin to Ontario flight.

When to book flights from Dublin to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Dublin to Ontario (DUB to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dublin to Ontario

Fastest flight time

15h 18m

Direct flights

None
The fastest flight from Dublin to Ontario takes 15h 18m
There are no direct flights from Dublin to Ontario. There are no popular flight routes from Dublin to Ontario.
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Frequently asked questions about flying from Dublin to Ontario

  • How far is Dublin to Ontario by plane?

    Ontario is 5136.8 mi away from Dublin. By plane, this route typically takes 15h 18m.

  • When did momondo last update prices for flights from Dublin Airport to Ontario Airport?

    Prices for flights from Dublin Airport to Ontario Airport refresh daily.

  • How old do you have to be to fly from Dublin Airport to Ontario Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dublin Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Dublin to Ontario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Dublin to Ontario for you.

Can I find flights from Dublin to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Dublin to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from Dublin to Ontario?

momondo helps you find the best flight between Dublin and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Dublin to Ontario right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Dublin to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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