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Cheap flights from Ontario (ONT) to Dublin (DUB) from $440

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — DUB
May 1 — May 81
From?
To?
Wed 5/1
Wed 5/8
1 adult, Economy
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Cheap flight deals from Ontario to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 26, 2024.

Popular in

June

Cheapest in

November

Round-trip from

$505

One-way from

$443
High demand for flights, 32% potential price rise
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Best time to find cheap flights, 36% potential price drop
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From Ontario to Dublin
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One-way flight from Ontario to Dublin
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What is the cheapest day to fly round-trip from Ontario to Dublin?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 30% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Ontario to Dublin?

To save up to 47% on this flight, we recommend booking at least 32 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to Dublin from $876 1-2 weeks out and tickets from $1,020 for flights departing within the next 72 hours.

What is the cheapest month to fly from Ontario to Dublin?

Flights from Ontario to Dublin lean towards being more expensive in June. Prices are generally better when you fly from Ontario to Dublin in January, with the cheapest ticket starting at $394.

When is the cheapest time to fly from Ontario to Dublin (ONT - DUB)?

One of the essential ways to save on airfare from Ontario to Dublin is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 23% on airfare.

Cheap Delta flights from Ontario to Dublin

Explore cheap flight options specifically provided by Delta for the route between Ontario and Dublin. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Take a look at some of the lowest-priced Delta flights heading from Ontario to Dublin. Be sure to come back soon if the deals available don't appeal to you at this time.
Thu 5/1610:00 pmONT - DUB
2 stops28h 45mDelta
Mon 5/2010:00 amDUB - ONT
2 stops20h 47mDelta
Deal found 4/25$727
Sun 5/266:50 amONT - DUB
2 stops26h 05mDelta
Sun 6/910:00 amDUB - ONT
2 stops21h 00mDelta
Deal found 4/26$813
Wed 5/226:00 amONT - DUB
1 stop18h 45mDelta
Wed 5/2910:00 amDUB - ONT
2 stops18h 06mDelta
Deal found 4/25$846
Tue 6/117:05 amONT - DUB
1 stop17h 40mDelta
Sun 6/239:10 amDUB - ONT
2 stops21h 50mDelta
Deal found 4/26$877
Mon 7/2912:04 pmONT - DUB
1 stop12h 41mDelta
Wed 8/711:00 amDUB - ONT
1 stop19h 12mDelta
Deal found 4/25$881
Thu 5/96:00 amONT - DUB
1 stop18h 45mDelta
Wed 5/2211:00 amDUB - ONT
1 stop17h 06mDelta
Deal found 4/25$911
Thu 5/96:00 amONT - DUB
1 stop18h 45mDelta
Wed 5/2210:00 amDUB - ONT
2 stops18h 06mDelta
Deal found 4/25$916

Cheap United Airlines flights from Ontario to Dublin

Explore cheap flight options specifically provided by United Airlines for the route between Ontario and Dublin. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Browse through some of the cheapest United Airlines flights traveling from Ontario to Dublin. Ensure the flight price, dates, time, and airline match your criteria before you book.
Wed 10/237:18 amONT - DUB
3 stops19h 02mUnited Airlines
Wed 10/308:00 amDUB - ONT
2 stops35h 33mUnited Airlines
Deal found 4/25$697
Sun 10/207:18 amONT - DUB
2 stops19h 02mUnited Airlines
Fri 11/2911:50 amDUB - ONT
2 stops18h 15mUnited Airlines
Deal found 4/24$755
Wed 7/246:20 amONT - DUB
2 stops16h 45mUnited Airlines
Wed 8/711:35 amDUB - ONT
2 stops19h 10mUnited Airlines
Deal found 4/25$854
Mon 5/206:00 amONT - DUB
3 stops20h 20mUnited Airlines
Thu 5/2311:35 amDUB - ONT
2 stops18h 52mUnited Airlines
Deal found 4/25$970
Wed 6/195:15 amONT - DUB
2 stops21h 55mUnited Airlines
Wed 6/2610:15 amDUB - ONT
2 stops42h 33mUnited Airlines
Deal found 4/25$981
Sun 5/56:00 amONT - DUB
2 stops17h 05mUnited Airlines
Fri 5/1711:35 amDUB - ONT
2 stops19h 29mUnited Airlines
Deal found 4/25$1,046

Cheap Ontario to Dublin flights in April & May 2024

Find cheap flight options from Ontario to Dublin specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,117 searches. Prices were last updated on April 26, 2024.
These are some of the best deals we've found on flights to Dublin in 2024 at this time. Check back regularly for other flight deals.
Thu 5/96:00 amONT - DUB
1 stop18h 45mDelta
Wed 5/2211:00 amDUB - ONT
1 stop17h 06mDelta
Deal found 4/25$722
Thu 5/1610:00 pmONT - DUB
2 stops28h 45mDelta
Mon 5/2010:00 amDUB - ONT
2 stops20h 47mDelta
Deal found 4/25$727
Sun 5/197:31 amONT - DUB
1 stop18h 14mIberia
Wed 5/2912:40 pmDUB - ONT
1 stop15h 28mIberia
Deal found 4/25$782
Sun 5/266:00 amONT - DUB
1 stop18h 45mKLM
Sun 6/911:00 amDUB - ONT
1 stop16h 42mKLM
Deal found 4/25$791
Sun 5/266:00 amONT - DUB
1 stop18h 45mKLM
Sun 6/910:00 amDUB - ONT
2 stops17h 42mKLM
Deal found 4/25$796
Mon 5/206:00 amONT - DUB
1 stop18h 45mKLM
Thu 5/2311:00 amDUB - ONT
1 stop17h 06mKLM
Deal found 4/25$812
Sun 5/266:50 amONT - DUB
2 stops26h 05mDelta
Sun 6/910:00 amDUB - ONT
2 stops21h 00mDelta
Deal found 4/26$813
Mon 5/205:45 amONT - DUB
2 stops19h 00mKLM
Thu 5/2310:00 amDUB - ONT
2 stops18h 06mKLM
Deal found 4/25$817
Fri 5/312:53 pmONT - DUB
1 stop12h 52mAmerican Airlines
Thu 5/1612:40 pmDUB - ONT
1 stop13h 42mAmerican Airlines
Deal found 4/26$835

Ontario to Dublin 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Dublin in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
These are some of the best deals we've found on flights to Dublin in 2024 at this time. Check back regularly for other flight deals.
Sun 11/106:02 amONT - DUB
2 stops16h 58mUnited Airlines
Wed 11/209:00 amDUB - ONT
2 stops20h 21mUnited Airlines
Deal found 4/26$570
Thu 12/57:00 amONT - DUB
1 stop18h 25mDelta
Mon 12/912:20 pmDUB - ONT
1 stop18h 08mDelta
Deal found 4/24$587
Thu 12/512:45 pmONT - DUB
1 stop12h 40mDelta
Mon 12/910:45 amDUB - ONT
2 stops19h 43mDelta
Deal found 4/25$592
Thu 11/710:59 pmONT - DUB
2 stops25h 46mDelta
Mon 11/116:00 amDUB - ONT
2 stops24h 33mDelta
Deal found 4/25$609
Thu 12/56:00 amONT - DUB
2 stops22h 40mDelta
Mon 12/910:45 amDUB - ONT
2 stops19h 43mDelta
Deal found 4/24$621
Mon 11/46:02 amONT - DUB
2 stops16h 58mUnited Airlines
Wed 11/139:00 amDUB - ONT
2 stops20h 21mUnited Airlines
Deal found 4/24$644
Wed 10/237:18 amONT - DUB
3 stops19h 02mUnited Airlines
Wed 10/308:00 amDUB - ONT
2 stops35h 33mUnited Airlines
Deal found 4/25$697
Thu 12/56:00 amONT - DUB
3 stops19h 55mUnited Airlines
Mon 12/99:00 amDUB - ONT
2 stops19h 17mUnited Airlines
Deal found 4/25$705
Sun 11/35:34 amONT - DUB
2 stops19h 16mBritish Airways
Sun 11/173:15 pmDUB - ONT
2 stops34h 33mBritish Airways
Deal found 4/25$712

Ontario to Dublin flights leaving soon

Find last-minute flight options from Ontario to Dublin for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Check out these flights departing soon from Ontario to Dublin. Tip: verify your flight details before completing your reservation.
Fri 5/312:53 pmONT - DUB
1 stop12h 52mAmerican Airlines
Thu 5/1612:40 pmDUB - ONT
1 stop13h 42mAmerican Airlines
Deal found 4/26$835
Thu 5/210:46 amONT - DUB
1 stop14h 59mIberia
Thu 5/1612:40 pmDUB - ONT
1 stop15h 28mIberia
Deal found 4/24$841
Fri 5/36:10 amONT - DUB
2 stops17h 35mDelta
Thu 5/1611:00 amDUB - ONT
1 stop17h 06mDelta
Deal found 4/26$846
Sun 5/57:43 amONT - DUB
1 stop18h 02mIberia
Thu 5/912:40 pmDUB - ONT
1 stop15h 28mIberia
Deal found 4/25$893
Wed 5/112:53 pmONT - DUB
1 stop12h 52mAmerican Airlines
Wed 5/811:45 amDUB - ONT
1 stop15h 14mAmerican Airlines
Deal found 4/24$1,040
Sun 5/56:00 amONT - DUB
2 stops17h 05mUnited Airlines
Fri 5/1711:35 amDUB - ONT
2 stops19h 29mUnited Airlines
Deal found 4/25$1,046
Sun 5/510:29 amONT - DUB
2 stops16h 36mMultiple Airlines
Thu 5/912:15 pmDUB - ONT
2 stops19h 44mMultiple Airlines
Deal found 4/25$1,187
Sat 5/410:15 amONT - DUB
2 stops16h 50mMultiple Airlines
Fri 5/2412:15 pmDUB - ONT
2 stops19h 43mMultiple Airlines
Deal found 4/25$1,222
Sun 5/510:29 amONT - DUB
2 stops16h 36mMultiple Airlines
Fri 5/2412:15 pmDUB - ONT
2 stops19h 43mMultiple Airlines
Deal found 4/25$1,224

One-way flights to Dublin from Ontario

Search for one-way flight options from Ontario to Dublin. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Users in need of a one-way flight from Ontario to Dublin can choose from these deals. Users can also find round-trip Ontario to Dublin flights by using the search form above.
Thu 8/226:00 amONT - DUB
2 stops20h 20mUnited Airlines
Deal found 4/26$440
Wed 7/1712:04 pmONT - DUB
1 stop12h 41mAir France
Deal found 4/25$443
Tue 9/35:15 amONT - DUB
3 stops19h 15mAir Canada
Deal found 4/26$449
Sat 9/71:35 pmONT - DUB
2 stops34h 40mAir Canada
Deal found 4/25$471
Fri 9/65:00 pmONT - DUB
2 stops15h 40mDelta
Deal found 4/26$472
Tue 9/37:00 amONT - DUB
1 stop17h 45mDelta
Deal found 4/26$528
Sun 8/186:20 amONT - DUB
2 stops42h 10mAir Canada
Deal found 4/24$550
Sun 9/15:00 pmONT - DUB
2 stops15h 40mDelta
Deal found 4/26$557
Tue 8/206:00 amONT - DUB
2 stops20h 20mUnited Airlines
Deal found 4/24$610

Find flights from Ontario to Dublin within your budget

Customize your flight search to find flights from Ontario to Dublin 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, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$697 - $791

Route

Depart

Return

Price

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 10/23

3 stops19h 02m

Dublin

Wed 10/30

2 stops35h 33m

$697

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 10/23

1 stop22h 00m

Dublin

Wed 10/30

1 stop17h 02m

$717

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 10/23

1 stop22h 00m

Dublin

Wed 10/30

2 stops17h 33m

$720

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 9/9

1 stop14h 55m

Dublin

Mon 9/23

1 stop18h 46m

$722

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Thu 5/16

2 stops28h 45m

Dublin

Mon 5/20

2 stops20h 47m

$727

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 9/11

1 stop13h 00m

Dublin

Wed 9/18

2 stops20h 31m

$729

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Thu 9/12

1 stop14h 55m

Dublin

Thu 9/19

2 stops18h 22m

$731

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Thu 8/22

2 stops21h 40m

Dublin

Wed 8/28

2 stops18h 16m

$749

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Sun 5/26

1 stop18h 45m

Dublin

Sun 6/9

1 stop16h 42m

$791

Flights are sorted by cheapest first

Deals found on 4/25

When is the best time to book a flight from Ontario to Dublin?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Dublin. Price data was last updated on January 28, 2024.
The best time to book flights from Ontario to Dublin is 59 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Ontario to Dublin?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Dublin. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Dublin flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Dublin by month

Plan your trip from Ontario to Dublin by taking into account the cheapest months to travel. The average price of a one-way flight from Ontario to Dublin is currently $502 while a round-trip flight costs $731. Price data was last updated on April 21, 2024.

Currently, November is the cheapest month in which you can book a flight from Ontario to Dublin (average of $505). Flying from Ontario to Dublin in June is currently the most expensive (average of $990). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$527

February

$530

March

$573

April

$668

May

$697

June

$990

July

$989

August

$832

September

$711

October

$616

November

$505

December

$506

Temperature and rainfall in Dublin by month

Plan your trip to Dublin by taking into account the average temperature and rainfall totals by month.

DUB

Temperature

41 - 60.8 °F

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated April 26, 2024.
See what other customers who have flown with Delta, United Airlines and British Airways from Ontario to Dublin have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,966 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta
8.1
Very good
10,966 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

KLM
7.9
Good
1,626 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

JetBlue
7.6
Good
4,606 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Air France
7.6
Good
1,809 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

United Airlines
7.4
Good
11,228 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from Ontario to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Ontario to Dublin for under $700 on Cheapflights?

    Yes, there are multiple flights from Ontario to Dublin for under $700. The cheapest flight booked recently is on United Airlines for just $697, but on average you can expect to pay $769.

  • Are there last-minute flights available from Ontario to Dublin for under $900?

    There are currently 19+ open flights from Ontario to Dublin within the next 7 days for less than $900.

  • What are the cheapest airlines flying from Ontario to Dublin round-trip?

    Cheapflights users have booked flights from Ontario to Dublin round-trip from $697. Other airlines that can offer you cheap pricing are American Airlines, from $717, and Iberia, from $722. Users have found that United Airlines is 14% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Ontario to Dublin one-way?

    One-way options have recently been found by users for as low as $440 on United Airlines. Other airlines that offer cheap prices include Air France from $443 and Air Canada from $449 one-way.

  • What are the most popular airlines that fly from Ontario to Dublin?

    American Airlines, British Airways and Delta are the most popular airlines when flying from Ontario to Dublin.

  • What does ONT to DUB mean?

    This is defined as Ontario Airport (ONT) and Dublin Airport (DUB). Codes like Dublin Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Ontario to Dublin that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Dublin flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Dublin with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Dublin flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ontario to Dublin that include hotel bookings?

    Yes. In addition to deals on Ontario to Dublin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Dublin.

  • Can I find deals for business class flights from Ontario to Dublin?

    Yes. Cheapflights offers flight deals from Ontario to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to Dublin that allow pets onboard?

    Many airlines flying from Ontario to Dublin offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Dublin?

    Yes, you can often find last-minute deals on Ontario to Dublin flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Dublin flight deals updated?

    The Ontario to Dublin flight deals you see on this page were last updated on 4/26.

See more FAQs

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Top 5 airlines flying from Ontario to Dublin

Discover the top 5 airlines that operate flights from Ontario to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$505Average$788FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
KLMCheapest$508Average$637FlexibilityNo cancel feeOn-time75%
Search KLM flights
American AirlinesCheapest$544Average$864FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest$549Average$872FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest$704Average$901FlexibilityNo cancel feeOn-time77%
Search Iberia flights
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Search flights from Ontario to Dublin by cabin class

Find flights from Ontario to Dublin, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Business Class
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Economy Class

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Dublin?

Cheapflights makes it easy to find Ontario to Dublin flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Dublin?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to Dublin.

Can Cheapflights find flights from Ontario to Dublin with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Dublin, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario to Dublin become cheaper?

Of course! You can now track prices for flights from Ontario to Dublin and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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