ONT - DUB

$307 Find Cheap Flights from Ontario to Dublin - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$556
Typical prices: $835-$1,152
KLM
Sun 12/2Sat 12/8
ONT - DUB • 1 stop
Cheapest one-way
$307
Typical prices: $666-$798
KLM
Fri 1/26
ONT - DUB • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Ontario and Dublin. You'll need to take a connecting flight to reach the destination.
Insights
Insights
Top layover airports
Dallas/Fort Worth (DFW)
Cheapest • Avg $1,131 (round-trip)
Atlanta Hartsfield-Jackson (ATL)
Shortest trip • 14h 57m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Ontario to Dublin (ONT-DUB)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Dublin

Wed, Nov 11 - Fri, Nov 20
KLM Logo
7:05 am - 7:45 amONT  Ontario-DUB Dublin
16h 40m1 stop Atlanta Hartsfield-Jackson
KLM Logo
9:40 am - 9:57 pmDUB  Dublin-ONT Ontario
20h 17m1 stop Atlanta Hartsfield-Jackson
$556KLM
Mon, Nov 16 - Wed, Nov 25
KLM Logo
7:05 am - 7:45 amONT  Ontario-DUB Dublin
16h 40m1 stop Atlanta Hartsfield-Jackson
KLM Logo
9:40 am - 8:54 pmDUB  Dublin-ONT Ontario
19h 14m1 stop Atlanta Hartsfield-Jackson
$556KLM
Wed, Nov 11 - Fri, Nov 20
Delta Logo
7:05 am - 7:45 amONT  Ontario-DUB Dublin
16h 40m1 stop Atlanta Hartsfield-Jackson
Delta Logo
9:40 am - 9:57 pmDUB  Dublin-ONT Ontario
20h 17m1 stop Atlanta Hartsfield-Jackson
$556Delta
Wed, Nov 11 - Thu, Nov 19
Delta Logo
7:05 am - 7:45 amONT  Ontario-DUB Dublin
16h 40m1 stop Atlanta Hartsfield-Jackson
Delta Logo
9:40 am - 9:57 pmDUB  Dublin-ONT Ontario
20h 17m1 stop Atlanta Hartsfield-Jackson
$556Delta
Wed, Dec 2 - Tue, Dec 8
Multiple Airlines Logo
7:05 am - 7:45 amONT  Ontario-DUB Dublin
16h 40m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
9:40 am - 8:59 pmDUB  Dublin-ONT Ontario
19h 19m1 stop Atlanta Hartsfield-Jackson
$556Multiple Airlines
Wed, Dec 2 - Tue, Dec 8
KLM Logo
7:05 am - 7:45 amONT  Ontario-DUB Dublin
16h 40m1 stop Atlanta Hartsfield-Jackson
KLM Logo
9:40 am - 8:59 pmDUB  Dublin-ONT Ontario
19h 19m1 stop Atlanta Hartsfield-Jackson
$556KLM
Wed, Dec 2 - Thu, Dec 10
Delta Logo
7:05 am - 7:45 amONT  Ontario-DUB Dublin
16h 40m1 stop Atlanta Hartsfield-Jackson
Delta Logo
9:40 am - 9:56 pmDUB  Dublin-ONT Ontario
20h 16m1 stop Atlanta Hartsfield-Jackson
$556Delta
Sun, Nov 8 - Thu, Nov 19
KLM Logo
6:00 am - 7:55 amONT  Ontario-DUB Dublin
17h 55m2 stops Salt Lake City Minneapolis St Paul
KLM Logo
9:40 am - 9:57 pmDUB  Dublin-ONT Ontario
20h 17m1 stop Atlanta Hartsfield-Jackson
$560KLM
Sun, Nov 1 - Sun, Nov 8
American Airlines Logo
6:00 am - 7:10 amONT  Ontario-DUB Dublin
17h 10m1 stop Dallas/Fort Worth
American Airlines Logo
11:30 am - 10:09 pmDUB  Dublin-ONT Ontario
18h 39m2 stops Philadelphia Phoenix Sky Harbor Intl
$746American Airlines
Sun, Oct 11 - Wed, Oct 21
American Airlines Logo
12:43 pm - 9:45 amONT  Ontario-DUB Dublin
13h 02m1 stop Dallas/Fort Worth
American Airlines Logo
12:40 pm - 6:44 pmDUB  Dublin-ONT Ontario
14h 04m1 stop Dallas/Fort Worth
$872American Airlines
Booking Insights

Price, demand and travel trends for Ontario to Dublin flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Ontario to Dublin with more confidence.

How much is a round-trip flight from Ontario to Dublin?

Round-trip flights from Ontario to Dublin start at $556. Prices are below average for this route right now, with typical round-trip fares ranging from $835 to $1,152. The lowest price found in the past 5 days was $556 on KLM.

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Key details for Ontario to Dublin flights

Cheapest flight

$307
Flight from Ontario to Dublin

When to book flights from Ontario to Dublin

Are your dates flexible? Find out the best times to travel from Ontario to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to Dublin flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Ontario to Dublin?

    Flights from Ontario to Dublin usually depart from Ontario (ONT) and arrive at Dublin (DUB).

  • What cabin classes can I book on flights from Ontario to Dublin?

    Two cabin classes are available on flights from Ontario to Dublin:

    • Economy Class
    • Premium Economy Class

  • Which airports do connecting flights from Ontario to Dublin pass through?

    One-stop flights from Ontario to Dublin most commonly connect through:

    • Dallas/Fort Worth (DFW) - 56% of one-stop connections
    • New York John F Kennedy Intl (JFK) - 15% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 15% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 12% of one-stop connections

    Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Ontario to Dublin?

    Yes. Being flexible with your travel dates can save you up to 54% on the Ontario to Dublin route. Tuesday is the cheapest departure day at $564 round-trip on average, while Friday is the most expensive at $1,205, a difference of $641. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Dublin?

    Some of the most popular sights in Dublin are St. Stephen's Green, Aviva Stadium and Croke Park. These are among the most viewed places in Dublin on KAYAK.

  • How long is a flight from Ontario to Dublin?

    A nonstop flight from Ontario to Dublin takes 0h 00m, covering 5,132 miles.

  • Do I need a passport to fly from Ontario to Dublin?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Ontario to Dublin looking right now?

    One-way fares from Ontario to Dublin are currently lower than usual. Average one-way flight prices are about $340, which is 50% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Ontario to Dublin?

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 14h 01m, compared with 14h 57m via Atlanta Hartsfield-Jackson (ATL) and 16h 03m via San Francisco (SFO).

  • What is the time difference between Ontario and Dublin?

    Dublin is 8 hours ahead of Ontario (Irish Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Dublin Airport (DUB)?

    Dublin Airport (DUB) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:
    • Budget
    • Sixt
    • Easirent
    • Europcar
    • Thrifty

  • How much should I expect to pay for a Ontario to Dublin flight?

    Round-trip flights from Ontario to Dublin range from $835 to $1,152, with an average of $968 over the past 12 months. Anything below $835 counts as a good deal.

Your guide to booking Ontario to Dublin flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Ontario to Dublin

Complete your trip to Dublin with a hotel stay or car rental

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