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Ireland

$173+ Cheap flights from the United States to Ireland

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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — DUB
Jul 1 — Jul 81
Tue 7/1
Tue 7/8
1 adult, Economy
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Cheap flight deals from USA to Ireland

Keep the following information in mind while searching for USA to Ireland flight deals. Data was last updated June 26, 2025.

Round-trip from

$390
(United Airlines)

One-way from

$177
(FlightHub)

Popular in

June

Cheapest in

January

Average price

$738

Good round-trip deal

$439 or less

Good one-way deal

$401 or less
From USA to Ireland
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One-way flight from USA to Ireland
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Highest demand for flights based on searches. 12% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from USA to Ireland.
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Price to beat on a one-way flight from USA to Ireland.
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Find flight deals from USA to Ireland

Cheapest flights from USA to Ireland
Explore the most affordable flight options available from USA to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.

This United Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/103:20 pmBOS - DUB
1 stop11h 25mUnited Airlines
Sun 8/178:50 amDUB - BOS
1 stop10h 24mUnited Airlines
Deal found 6/26$391
This FlightHub deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/275:30 pmBOS - DUB
Nonstop6h 00mAer Lingus
Tue 9/24:45 pmDUB - BOS
Nonstop7h 00mAer Lingus
Deal found 6/26$392
This United Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/258:16 pmEWR - DUB
2 stops30h 59mUnited Airlines
Sun 8/38:50 amDUB - EWR
1 stop20h 00mUnited Airlines
Deal found 6/25$394
This Booking.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/115:30 pmEWR - DUB
Nonstop6h 25mAer Lingus
Mon 9/221:25 pmDUB - EWR
Nonstop7h 35mAer Lingus
Deal found 6/25$395
This Air France deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1311:30 pmJFK - DUB
1 stop10h 30mAir France
Thu 8/211:15 pmDUB - JFK
Nonstop7h 40mAir France
Deal found 6/26$397
This Delta deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/249:32 amEWR - DUB
2 stops20h 13mDelta
Sun 8/3111:00 amDUB - EWR
1 stop17h 04mDelta
Deal found 6/26$397
This Delta deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/305:20 pmBOS - DUB
1 stop9h 55mDelta
Tue 8/123:00 pmDUB - BOS
Nonstop7h 20mDelta
Deal found 6/24$397
This Icelandair deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1511:35 pmBOS - DUB
1 stop8h 40mIcelandair
Fri 9/1912:15 pmDUB - BOS
1 stop11h 35mIcelandair
Deal found 6/25$398
This Icelandair deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/118:25 pmEWR - DUB
1 stop9h 40mIcelandair
Wed 10/2212:15 pmDUB - EWR
1 stop11h 55mIcelandair
Deal found 6/24$399
This Air Canada deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/21:55 pmEWR - DUB
1 stop12h 15mAir Canada
Sat 11/89:00 amDUB - EWR
2 stops15h 58mAir Canada
Deal found 6/25$400
This CheapOair deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/35:40 pmBOS - DUB
2 stops32h 30mAir Canada
Sat 11/89:00 amDUB - BOS
2 stops29h 38mAir Canada
Deal found 6/24$400
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/98:25 pmJFK - DUB
1 stop9h 40mIcelandair
Fri 10/1712:15 pmDUB - JFK
1 stop11h 55mIcelandair
Deal found 6/25$402

Cheapflights Fare Finder

Customize your flight search to find flights from USA 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 2,558,603 searches. Data last updated June 26, 2025.
Use the filters below to find and compare flights from the United States to Ireland that are best for you.

Fly from

USA

Fly to

Ireland

Route

Depart

Return

Price

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 8/10

3:20 pm-7:45 am

1 stop11h 25m

Dublin

Sun 8/17

8:50 am-2:14 pm

1 stop10h 24m

$391

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 8/27

5:30 pm-4:30 am

Nonstop6h 00m

Dublin

Tue 9/2

4:45 pm-6:45 pm

Nonstop7h 00m

$392

NewarkDublin

EWR - DUB

EWRDUB

Newark

Fri 7/25

7:39 am-8:15 am

2 stops19h 36m

Dublin

Sun 8/3

8:50 am-11:50 pm

1 stop20h 00m

$394

NewarkDublin

EWR - DUB

EWRDUB

Newark

Thu 9/11

5:30 pm-4:55 am

Nonstop6h 25m

Dublin

Mon 9/22

1:25 pm-4:00 pm

Nonstop7h 35m

$395

New YorkDublin

JFK - DUB

JFKDUB

New York John F Kennedy Intl

Wed 8/13

11:30 pm-3:00 pm

1 stop10h 30m

Dublin

Thu 8/21

1:15 pm-3:55 pm

Nonstop7h 40m

$397

NewarkDublin

EWR - DUB

EWRDUB

Newark

Sun 8/24

9:32 am-10:45 am

2 stops20h 13m

Dublin

Sun 8/31

11:00 am-11:04 pm

1 stop17h 04m

$397

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 7/30

5:20 pm-8:15 am

1 stop9h 55m

Dublin

Tue 8/12

3:00 pm-5:20 pm

Nonstop7h 20m

$397

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 9/15

11:35 pm-1:15 pm

1 stop8h 40m

Dublin

Fri 9/19

12:15 pm-6:50 pm

1 stop11h 35m

$398

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 11/3

5:40 pm-7:10 am

2 stops32h 30m

Dublin

Sat 11/8

9:00 am-9:38 am

2 stops29h 38m

$400

New YorkDublin

JFK - DUB

JFKDUB

New York John F Kennedy Intl

Wed 8/13

10:55 pm-5:15 pm

1 stop13h 20m

Dublin

Fri 8/22

11:45 am-9:59 pm

1 stop15h 14m

$402

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Showing 1-10 of 60 results
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Best time to book a flight from USA to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from USA with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United States to Ireland

What is the cheapest month to book a flight from USA to Ireland?

Currently, November is the cheapest month in which you can book a flight from USA to Ireland (average of $509). Flying from USA to Ireland in June is currently the most expensive (average of $937). 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.

What is the cheapest time of day to fly from US to IE?

Find hourly flight availability from USA to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 26, 2025.

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

Weekly flight availability from USA to Ireland

Explore weekly flight availability from USA to Ireland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 26, 2025.

The most flights from US0 to IE0 are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

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 June 26, 2025.
See what other customers who have flown with Delta, Alaska Airlines, and Porter Airlines from the United States 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
8.0
Very good
7,963 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Alaska Airlines
8.0
Very good
10,000 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Porter Airlines
8.0
Very good
293 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,365 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
805 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • How popular is this USA to Ireland flight route?

    Within the past month, 48 users have taken a look at flights from United States to Ireland.

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

    $177 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on TAP AIR PORTUGAL and Air Canada, with prices starting from $210 and $216, respectively.

  • Can I find deals for flights from USA to Ireland that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from USA 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.

  • What is the cheapest month to book a flight from USA to Ireland?

    Currently, November is the cheapest month in which you can book a flight from USA to Ireland (average of $509). Flying from USA to Ireland in June is currently the most expensive (average of $937). 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.

See more FAQs

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Alternative routes for USA to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Gatwick flights
Newark to Charles de Gaulle flights
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Newark to Leonardo da Vinci/Fiumicino flights
Newark to Orly flights
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Newark to Athens flights
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LaGuardia to Heathrow flights
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Seattle to Heathrow flights
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O'Hare Intl to Charles de Gaulle flights
Newark to Istanbul flights
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O'Hare Intl to Leonardo da Vinci/Fiumicino flights
Boston to Gatwick flights
John F Kennedy Intl to Frederic Chopin flights
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Dulles Intl to Charles de Gaulle flights
Boston to Leonardo da Vinci/Fiumicino flights
Boston to Lisbon flights
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Newark to Lisbon flights
San Francisco to Heathrow flights
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Los Angeles to Leonardo da Vinci/Fiumicino flights
Boston to Charles de Gaulle flights
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Dallas/Fort Worth to Frankfurt flights

Top 10 airlines flying from USA to Ireland

Discover the top 10 airlines that operate flights from USA 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 2,558,603 searches. Data last updated June 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$204Average$649FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$280Average$489FlexibilityNo cancel feeOn-time77%
PLAYCheapest$280Average$376FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$292Average$812FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$344Average$506FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$352Average$565FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$365Average$721FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$382Average$802FlexibilityNo cancel feeOn-time69%
IberiaCheapest$391Average$719FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$399Average$729FlexibilityNo cancel feeOn-time77%

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