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Cheap flights from Ontario (ONT) to Ireland from $387

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 7/18. 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 12 — May 191
From?
To?
Sun 5/12
Sun 5/19
1 adult, Economy
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How far in advance should I book a flight from Ontario to Ireland?

To save on the cost of your flight from Ontario to Ireland, book at least 53 days before your planned departure. Booking around this time can save you about 78% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $836 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,140.

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

Flights from Ontario to Ireland lean towards being more expensive in July. Prices are generally better when you fly from Ontario to Ireland in February, with the cheapest ticket starting at $396.

When is the cheapest time to fly from Ontario to Ireland (ONT - IE)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Ireland as you normally would.

Cheap KLM flights from Ontario to Ireland

Explore cheap flight options specifically provided by KLM for the route between Ontario and Ireland. 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 2,749,864 searches. Data last updated May 7, 2024.
Take a peek at the cheapest KLM flights we've detected traveling from Ontario to Ireland. Be sure to come back soon if the deals available don't appeal to you at this time.
Sat 10/2612:45 pmONT - DUB
1 stop13h 40mKLM
Wed 11/612:20 pmDUB - ONT
1 stop18h 08mKLM
Deal found 5/6$696
Sun 6/1611:30 amONT - DUB
1 stop13h 15mKLM
Tue 8/2011:00 amDUB - ONT
1 stop16h 05mKLM
Deal found 5/5$849
Thu 8/112:04 pmONT - DUB
1 stop12h 41mKLM
Mon 8/1211:00 amDUB - ONT
1 stop16h 05mKLM
Deal found 5/7$936
Wed 6/1211:30 amONT - DUB
1 stop13h 15mKLM
Mon 6/1711:00 amDUB - ONT
1 stop16h 42mKLM
Deal found 5/7$977
Mon 7/111:30 amONT - DUB
1 stop13h 15mKLM
Mon 7/811:00 amDUB - ONT
1 stop16h 42mKLM
Deal found 5/7$997
Sun 6/3011:30 amONT - DUB
1 stop13h 15mKLM
Mon 7/2911:00 amDUB - ONT
1 stop16h 42mKLM
Deal found 5/6$1,008
Thu 7/411:30 amONT - DUB
1 stop13h 15mKLM
Sat 7/1311:00 amDUB - ONT
1 stop16h 42mKLM
Deal found 5/7$1,009

Cheap American Airlines flights from Ontario to Ireland

Explore cheap flight options specifically provided by American Airlines for the route between Ontario and Ireland. 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 2,749,864 searches. Data last updated May 7, 2024.
Browse through some of the cheapest American Airlines flights traveling from Ontario to Ireland. Check back soon if you're not seeing flights that suit your needs.
Tue 10/12:52 pmONT - DUB
2 stops16h 53mAmerican Airlines
Tue 10/811:45 amDUB - ONT
1 stop18h 15mAmerican Airlines
Deal found 5/7$714
Tue 10/14:45 pmONT - DUB
2 stops16h 10mAmerican Airlines
Tue 10/811:45 amDUB - ONT
2 stops19h 41mAmerican Airlines
Deal found 5/7$718
Tue 10/110:50 amONT - DUB
1 stop14h 55mAmerican Airlines
Tue 10/811:45 amDUB - ONT
1 stop18h 15mAmerican Airlines
Deal found 5/7$721
Sun 9/12:39 pmONT - DUB
2 stops17h 06mAmerican Airlines
Wed 9/411:45 amDUB - ONT
1 stop18h 15mAmerican Airlines
Deal found 5/5$804
Sun 9/88:41 amONT - DUB
2 stops16h 19mAmerican Airlines
Sat 9/1412:00 pmDUB - ONT
2 stops18h 00mAmerican Airlines
Deal found 5/7$813
Thu 8/812:46 pmONT - DUB
2 stops14h 54mAmerican Airlines
Thu 8/1511:45 amDUB - ONT
2 stops20h 04mAmerican Airlines
Deal found 5/5$852
Thu 8/810:46 amONT - DUB
1 stop14h 59mAmerican Airlines
Sat 8/179:30 amDUB - ONT
2 stops17h 18mAmerican Airlines
Deal found 5/6$854
Thu 7/2510:48 amONT - DUB
1 stop14h 57mAmerican Airlines
Sun 8/117:30 amDUB - ONT
2 stops18h 57mAmerican Airlines
Deal found 5/6$858
Wed 7/246:15 amONT - DUB
2 stops14h 45mAmerican Airlines
Sat 8/108:55 amDUB - ONT
2 stops19h 26mAmerican Airlines
Deal found 5/6$860

Cheap Ontario to Ireland flights in May & June 2024

Find cheap flight options from Ontario to Ireland specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,749,864 searches. Prices were last updated on May 7, 2024.
These are some of the best deals we've found on flights to Ireland in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Mon 5/206:00 amONT - DUB
2 stops18h 15mMultiple Airlines
Mon 5/279:50 amDUB - ONT
2 stops34h 43mMultiple Airlines
Deal found 5/6$812
Mon 5/205:15 amONT - DUB
2 stops17h 50mUnited Airlines
Mon 5/2711:35 amDUB - ONT
2 stops32h 58mUnited Airlines
Deal found 5/6$837
Sun 6/95:15 amONT - DUB
2 stops21h 55mUnited Airlines
Fri 6/219:50 amDUB - ONT
2 stops34h 43mUnited Airlines
Deal found 5/6$838
Mon 5/272:50 pmONT - DUB
2 stops16h 55mAmerican Airlines
Mon 6/311:45 amDUB - ONT
1 stop15h 14mAmerican Airlines
Deal found 5/6$841
Sun 6/162:44 pmONT - DUB
2 stops18h 21mBritish Airways
Tue 8/2012:40 pmDUB - ONT
1 stop14h 08mBritish Airways
Deal found 5/5$842
Sun 5/268:50 pmONT - DUB
2 stops27h 25mMultiple Airlines
Thu 6/69:50 amDUB - ONT
2 stops18h 58mMultiple Airlines
Deal found 5/6$844
Mon 5/272:50 pmONT - DUB
2 stops16h 55mAmerican Airlines
Mon 6/311:45 amDUB - ONT
2 stops20h 11mAmerican Airlines
Deal found 5/6$845
Sun 5/2611:30 pmONT - DUB
1 stop21h 30mAmerican Airlines
Sun 6/911:45 amDUB - ONT
1 stop19h 14mAmerican Airlines
Deal found 5/7$847
Mon 5/276:00 amONT - DUB
1 stop19h 45mAmerican Airlines
Mon 6/311:45 amDUB - ONT
1 stop15h 14mAmerican Airlines
Deal found 5/6$848

Ontario to Ireland 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Ireland in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 7, 2024.
These are some of the best deals we've found on flights to Ireland in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 11/1212:45 pmONT - DUB
1 stop12h 40mKLM
Wed 11/2012:20 pmDUB - ONT
1 stop15h 02mKLM
Deal found 5/6$565
Tue 11/1212:51 pmONT - DUB
2 stops18h 09mBritish Airways
Wed 11/207:10 amDUB - ONT
2 stops18h 38mBritish Airways
Deal found 5/6$567
Wed 11/1310:59 pmONT - DUB
1 stop26h 26mDelta
Wed 11/2012:20 pmDUB - ONT
1 stop18h 08mDelta
Deal found 5/6$581
Thu 12/512:45 pmONT - DUB
1 stop12h 40mDelta
Mon 12/912:20 pmDUB - ONT
1 stop18h 08mDelta
Deal found 5/6$587
Thu 12/512:45 pmONT - DUB
1 stop12h 40mDelta
Mon 12/910:45 amDUB - ONT
2 stops19h 43mDelta
Deal found 5/6$592
Wed 11/137:00 amONT - DUB
2 stops17h 05mDelta
Wed 11/2012:20 pmDUB - ONT
1 stop18h 08mDelta
Deal found 5/6$595
Thu 11/76:00 amONT - DUB
2 stops26h 00mDelta
Mon 11/1112:20 pmDUB - ONT
1 stop15h 02mDelta
Deal found 5/6$605
Thu 11/711:59 pmONT - DUB
2 stops31h 06mBritish Airways
Mon 11/117:25 pmDUB - ONT
2 stops36h 42mBritish Airways
Deal found 5/6$606
Thu 11/712:45 pmONT - DUB
1 stop12h 40mKLM
Mon 11/1112:20 pmDUB - ONT
1 stop18h 08mKLM
Deal found 5/6$631

Ontario to Ireland flights leaving soon

Find last-minute flight options from Ontario to Ireland 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 2,749,864 searches. Data last updated May 7, 2024.
Check out these flights departing soon from Ontario to Ireland. Users should examine the flight details to ensure there are no surprises.
Mon 5/206:00 amONT - DUB
2 stops18h 15mMultiple Airlines
Mon 5/279:50 amDUB - ONT
2 stops34h 43mMultiple Airlines
Deal found 5/6$812
Mon 5/205:15 amONT - DUB
2 stops17h 50mUnited Airlines
Mon 5/2711:35 amDUB - ONT
2 stops32h 58mUnited Airlines
Deal found 5/6$837
Wed 5/86:00 amONT - DUB
2 stops18h 15mAir Canada
Tue 5/149:50 amDUB - ONT
2 stops34h 50mAir Canada
Deal found 5/7$895
Sat 5/1810:42 amONT - DUB
2 stops37h 33mMultiple Airlines
Sun 6/210:15 amDUB - ONT
2 stops34h 18mMultiple Airlines
Deal found 5/5$937
Mon 5/207:31 amONT - DUB
1 stop18h 14mIberia
Mon 5/2711:00 amDUB - ONT
2 stops20h 56mIberia
Deal found 5/6$955
Tue 5/211:36 pmONT - DUB
2 stops34h 39mAir Canada
Fri 5/319:50 amDUB - ONT
2 stops34h 43mAir Canada
Deal found 5/7$980
Mon 5/2010:34 amONT - DUB
1 stop15h 11mAmerican Airlines
Mon 5/2712:40 pmDUB - ONT
1 stop13h 42mAmerican Airlines
Deal found 5/6$1,049
Mon 5/2012:50 pmONT - DUB
1 stop12h 55mIberia
Mon 5/2712:40 pmDUB - ONT
1 stop13h 42mIberia
Deal found 5/6$1,053
Wed 5/812:53 pmONT - DUB
2 stops17h 57mBritish Airways
Tue 5/1412:40 pmDUB - ONT
1 stop19h 16mBritish Airways
Deal found 5/7$1,114

One-way flights to Ireland from Ontario

Search for one-way flight options from Ontario to Ireland. 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 2,749,864 searches. Data last updated May 7, 2024.
If you're seeking multiple options on one-way flights from Ontario to Ireland, be sure to check out these deals, which are updated often. Those seeking round-trip flights from Ontario to Ireland should utilize the search form at the the top of the page.
Thu 7/1812:49 amONT - DUB
2 stops26h 16mMultiple Airlines
Deal found 5/6$387
Fri 7/1910:59 pmONT - DUB
3 stops54h 31mMultiple Airlines
Deal found 5/6$435
Mon 9/910:49 amONT - DUB
2 stops15h 31mUnited Airlines
Deal found 5/6$439
Mon 7/296:00 amONT - DUB
2 stops20h 20mUnited Airlines
Deal found 5/6$441
Thu 8/112:04 pmONT - DUB
1 stop12h 41mKLM
Deal found 5/6$443
Mon 7/2912:04 pmONT - DUB
1 stop12h 41mAir France
Deal found 5/6$446
Thu 10/36:02 amONT - DUB
2 stops18h 13mMultiple Airlines
Deal found 5/5$449
Thu 10/310:59 pmONT - DUB
1 stop25h 46mDelta
Deal found 5/5$454
Sun 8/251:35 pmONT - DUB
2 stops34h 40mAir Canada
Deal found 5/7$465

Find flights from Ontario to Ireland within your budget

Customize your flight search to find flights from Ontario to Ireland 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 2,749,864 searches. Data last updated May 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$696 - $912

Route

Depart

Return

Price

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Sat 10/26

1 stop13h 40m

Dublin

Wed 11/6

1 stop18h 08m

$696

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Tue 10/1

2 stops16h 53m

Dublin

Tue 10/8

1 stop18h 15m

$714

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Tue 10/1

2 stops18h 03m

Dublin

Mon 10/14

1 stop18h 46m

$715

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Tue 10/1

2 stops16h 10m

Dublin

Tue 10/8

2 stops19h 41m

$718

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Thu 10/3

1 stop13h 00m

Dublin

Mon 10/7

1 stop17h 02m

$722

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Tue 10/1

3 stops19h 43m

Dublin

Tue 10/8

2 stops19h 21m

$726

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 10/2

2 stops15h 15m

Dublin

Tue 10/15

2 stops19h 56m

$727

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 9/9

1 stop13h 00m

Dublin

Thu 9/19

2 stops18h 22m

$731

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Sun 5/26

2 stops19h 00m

Dublin

Sun 6/9

2 stops34h 30m

$912

Flights are sorted by cheapest first

Deals found on 5/6

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated May 7, 2024.
See what other customers who have flown with KLM, American Airlines and United Airlines from Ontario to Ireland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,810 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

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
10,810 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

Reviews

1 / 10

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

KLM
7.9
Good
1,598 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

Reviews

1 / 10

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

Air France
7.5
Good
1,779 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

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
11,073 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

Reviews

1 / 10

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

American Airlines
7.3
Good
14,686 reviews
Delta
8.1
Very good
10,810 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Food

7.4

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 Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Ireland?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ireland from Ontario.

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

    Yes, there are multiple flights from Ontario to Ireland for under $700. The cheapest flight booked recently is on KLM for just $696, but on average you can expect to pay $728.

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

    There are currently 20+ open flights from Ontario to Ireland within the next 7 days for less than $900.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $439. However, be on the lookout for offers from KLM and Air France, as they are both options that can get you from Ontario to Ireland for a low price.

  • What are the most popular routes from Ontario to Ireland?

    When deciding which route to take from Ontario to Ireland consider Ontario - Dublin, Ontario - Shannon or Ontario - Cork as they are the most popular.

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

    The most popular airlines flying from Ontario to Ireland are American Airlines, British Airways and Delta. Something to consider prior to booking your flight.

  • What does ONT to DUB mean?

    Ontario Airport is ONT and Dublin Airport is DUB. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Shannon Airport (SNN), Cork Airport (ORK), Milltown (Kerry) Kerry Airport (KIR), Knock Intl Airport (NOC), Galway Airport (GWY) are some additional IATA codes for airports related to your trip.

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

    The amount of baggage you can bring on your Ontario to Ireland 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 Ireland with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Ireland 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 Ireland that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Ireland 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 Ireland that allow pets onboard?

    Many airlines flying from Ontario to Ireland 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 Ireland?

    Yes, you can often find last-minute deals on Ontario to Ireland 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 Ireland flight deals updated?

    The Ontario to Ireland flight deals you see on this page were last updated on 5/6.

See more FAQs

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Alternative routes for Ontario to Ireland
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Top 5 airlines flying from Ontario to Ireland

Discover the top 5 airlines that operate flights from Ontario to Ireland. 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 2,749,864 searches. Data last updated May 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$505Average$803FlexibilityNo 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$709Average$855FlexibilityNo cancel feeOn-time77%
Search Iberia flights
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Ontario to Kerry flights

Search flights from Ontario to Ireland by cabin class

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

Cheapflights helps you search for flights from Ontario to Ireland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Ontario to Ireland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

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

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

Yes, Cheapflights offers price alerts on Ontario to Ireland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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