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Cheap Flight Tickets to Ireland

Looking for cheap flights to Ireland that actually fit your budget?

Dates
Wed, Oct 7 – Fri, Oct 9
No. of travellers & Class
1 Traveller · Economy
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Find bargain flights to Ireland from cities across the USA. Triwize compares fares across 500+ airlines to Dublin, Shannon, and Cork. Whether you're after flights to Ireland one way or flights to Ireland direct, we help you find the best flight to Ireland price every time.

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Round trip flight deals

The card below shows the cheapest round-trip fares currently available. Updated every 24 hours. Click any to search available seats.

Enter your travel dates to find the best prices
Wed, 3 Nov - Fri, 5 Nov
Airline logo
9:45SEA
17h 00m
Non-stop
05:45SIN
Airline logo
9:00SIN
14h 10m
Non-stop
08:10SEA
$653Economy · per person
Wed, 3 Nov - Fri, 5 Nov
Airline logo
12:05LAX
16h 35m
Non-stop
7:40SIN
Airline logo
20:45SIN
16h 05m
Non-stop
21:50LAX
$857Economy · per person
Wed, 3 Nov - Fri, 5 Nov
Airline logo
7:00LAX
25h 35m
1 stop
12:10SIN
Airline logo
20:45SIN
16h 5m
Non-stop
21:50LAX
$855Economy · per person
Wed, 3 Nov - Fri, 5 Nov
Airline logo
08:37LAX
29h 38m
2 stops
05:15SIN
Airline logo
07:00SIN
19h 32m
1 stop
11:32LAX
$873Economy · per person
Wed, 3 Nov - Fri, 5 Nov
Airline logo
13:18ONT
25h 57m
2 stops
06:15SIN
Airline logo
8:45SIN
18h 27m
1 stop
12:12ONT
$878Economy · per person
Wed, 3 Nov - Fri, 5 Nov
Airline logo
06:00ONT
21h 35m
1 stop
18:35SIN
Airline logo
08:45SIN
26h 18m
1 stop
20:01ONT
$873Economy · per person
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Best Time to Book Flight Tickets to Ireland

What Is the Cheapest Month to Fly to Ireland?

January and February are widely regarded as the cheapest months to book flights to Ireland from the USA, since demand drops after the holidays. September and October are also good value, with mild weather and thinner crowds. Aim to book 2-6 months ahead for the best fares.

Dublin Ha'penny Bridge Ireland
Dublin Ireland
Wicklow Ireland
Rock of Cashel Ireland
Blarney Ireland
Kirkjufellsfoss mountain

When Are Flights to Ireland the Most Expensive?

Summer (June through August) is peak season for flights to Ireland, driven by school holidays and the best weather of the year. December sees a further spike around Christmas and New Year, and St. Patrick's Day (mid-March) causes a shorter price bump.

Everything you need to know before you book

Ireland Flight Price Guide — Month

  • Low fare months
  • Mild season
  • Peak pricing periods
price-guide-img
  • January
    PriceLow
    CrowdLow
    Best forBudget travel; post-holiday fares
    Avg RT Fare$450–650
  • February
    PriceLow
    CrowdLow
    Best forGreat value before spring
    Avg RT Fare$450–650
  • March
    PriceMed-High
    CrowdHigh
    Best forSt. Patrick's Day spike (mid-month)
    Avg RT Fare$550–800
  • April
    PriceMedium
    CrowdMedium
    Best forShoulder season; mild weather
    Avg RT Fare$500–750
  • May
    PriceMedium
    CrowdMedium
    Best forGood value before the summer surge
    Avg RT Fare$550–800
  • June
    PriceHigh
    CrowdHigh
    Best forSummer season begins
    Avg RT Fare$700–1,000
  • July
    PricePeak
    CrowdVery High
    Best forPeak summer demand
    Avg RT Fare$800–1,200+
  • August
    PricePeak
    CrowdVery High
    Best forPeak continues; book well ahead
    Avg RT Fare$750–1,100+
  • September
    PriceLow-Med
    CrowdLow-Med
    Best forPost-summer value; pleasant weather
    Avg RT Fare$450–700
  • October
    PriceLow-Med
    CrowdLow
    Best forGood fares; autumn colours
    Avg RT Fare$450–700
  • November
    PriceMedium
    CrowdMedium
    Best forShoulder season; occasional Thanksgiving-week bump
    Avg RT Fare$500–750
  • December
    PricePeak
    CrowdVery High
    Best forChristmas / New Year peak
    Avg RT Fare$700–1,100+

Why Fly to Ireland?

Dublin's city centre

Compact and easy to explore

Ireland is small enough to cross by car in a few hours, so a single trip can cover Dublin's city centre, the Cliffs of Moher, and the Ring of Kerry.

Georgian Dublin architecture

Rich history and culture

from Neolithic sites like Newgrange, older than the pyramids, to Georgian Dublin architecture and traditional music sessions in Temple Bar.

Scenic road through Ireland's green mountains

Dramatic landscapes

The Wild Atlantic Way is a 2,500km coastal driving route linking cliffs, beaches, and villages along the west coast.

People clinking glasses in a pub

Warm hospitality

Ireland is known worldwide for its friendly welcome and lively pub culture.

Ireland landscape

A gateway to Europe

Dublin is a short hop from London, Paris, Amsterdam, and other major cities, making Ireland a great base for a longer European trip.

Beautiful Irish road landscape with rainbow

Road trip country

Ireland drives on the left; renting a car with an International Driving Permit opens up the countryside beyond the cities.

Everything you need to know before you book

Quick Facts - Flights to Ireland

Everything you need to know before you book, in one place.

Cheapest Months to FlyJanuary & February
Most Expensive Months to FlyJune-August and December
How Far Ahead to Book2-6 months
Shortest Flight to Ireland~5h 55m
Boston
TBD
Dublin
Non-stop
Longest Common Nonstop Route~10h+
West Coast US
TBD
Dublin
Non-stop
Most Popular Irish AirportDublin Airport (DUB)
US Customs Pre-Clearance AirportsDublin (DUB) and Shannon (SNN)
Visa for US CitizensNot required for stays up to 90 days
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A traveller's guide

Popular Airports in Ireland—A Traveller's Guide

Your choice of Irish arrival airport can shape the entire trip. Dublin and Shannon are the two gateways with nonstop US service; smaller airports mainly connect via Europe.

  • Dublin Airport

    Dublin Airport

    DUB

    Hub Airlines

    Key Feature

    Ireland's busiest airport; two terminals; US Customs pre-clearance; most nonstop US routes

  • Shannon Airport

    Shannon Airport

    SNN

    Hub Airlines

    Key Feature

    Gateway to the West Coast (Galway, Cliffs of Moher); US Customs pre-clearance; relaxed arrivals

  • Cork Airport

    Cork Airport

    ORK

    Hub Airlines

    Key Feature

    Ireland's third-busiest airport; reached mainly via European connections

  • Belfast International / George Best Belfast City

    Belfast International / George Best Belfast City

    BFS / BHD

    Hub Airlines

    Key Feature

    Serves Northern Ireland (UK); a separate UK ETA is required for US visitors

  • Ireland West Airport Knock

    Ireland West Airport Knock

    NOC

    Hub Airlines

    Key Feature

    Regional airport in County Mayo; seasonal and connecting services

1 / 5

Major Airlines Flying to Ireland

Several major airlines operate regular service between the USA and Ireland. Below is a guide to the key players, their US gateways, and what sets each apart.

✈️
Aer Lingus
KEY HUBS
BOSJFKORDLAXSFOMCOIADDUBSNN
WHY CHOOSEIreland’s flag carrier; extensive nonstop US–Ireland network

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Dates
Departure – Return

Millions of Travellers Saving Big

Check out how Triwize has helped, from real people.

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I was planning a girls' weekend and Triwize made the booking process so simple. I even got travel credits just for booking? Like, yes please. Loved the little rewards — makes you want to travel more.

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I booked my international flight through Triwize, and I'm blown away by the service! A big thanks to Priya from their team who was super helpful.

Muskan Garg

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Amazing deal and smooth booking

This was my first time using Triwize and I was impressed. The site is clean, super easy to use, and I found a great deal flying home for the weekend. Will definitely recommend to friends!

Peter Kavinsky

Verified by Trustpilot

Frequently Asked Questions

How to book cheap flights to Ireland?

Search 2-6 months in advance for the best prices on flights to Ireland from the USA. Use flexible date search to compare fares across a range of days — flying midweek (Tuesday or Wednesday) is typically cheaper than weekend departures. Booking direct with the airline or through a certified OTA like Triwize ensures full fare rules are disclosed upfront.

Are there flights to Ireland from Boston?

Yes. Boston Logan (BOS) is one of the closest and most popular US gateways to Ireland, with year-round nonstop service to Dublin on Aer Lingus, Delta, and JetBlue. It's typically the shortest transatlantic flight to Ireland, at around 5 hours 55 minutes.

Is there a direct flight to Dublin, Ireland from the US?

Yes. Dublin Airport (DUB) receives nonstop flights from roughly two dozen US cities, including New York, Boston, Chicago, Atlanta, Los Angeles, San Francisco, and Washington DC, operated by Aer Lingus, Delta, United, American, and JetBlue.

Are there flights to Ireland from Chicago?

Yes. Chicago O'Hare (ORD) has year-round nonstop service to Dublin on Aer Lingus and United, with American Airlines operating the route seasonally.

How do I find cheap flights to Dublin, Ireland?

Search 2-6 months ahead, fly midweek, and compare Dublin against nearby Shannon. Setting a fare alert helps too — Triwize scans 500+ airlines to surface the lowest fares to Dublin as they appear.

What's the difference between flights to the Republic of Ireland and flights to Northern Ireland?

The Republic of Ireland is the independent EU nation covering most of the island; flights land at Dublin, Shannon, Cork, or Knock, and US citizens enter visa-free for up to 90 days. Northern Ireland — including Belfast — is part of the United Kingdom and has separate entry rules.

Can I fly to Ireland and land in Belfast?

Belfast is in Northern Ireland, part of the United Kingdom, not the Republic of Ireland. US citizens flying into Belfast International (BFS) or George Best Belfast City (BHD) need a UK Electronic Travel Authorisation (ETA), not an Irish visa — even though there's no passport check when crossing overland between Dublin and Belfast under the Common Travel Area.

Are there flights from Ireland to England?

Yes. Dublin to London is one of the busiest air routes in Europe, flown multiple times daily by Aer Lingus, British Airways, and Ryanair to Heathrow, Gatwick, City, Stansted, and Luton, with a flight time of around 1 hour 15 minutes.

Are there flights from Ireland to Germany?

Yes. Aer Lingus and Ryanair operate direct flights from Dublin to German cities including Frankfurt, Berlin, Munich, and Düsseldorf, with flight times of roughly 2 hours.

Are there flights from Ireland to Paris?

Yes. Aer Lingus, Air France, and Ryanair fly nonstop from Dublin to Paris (Charles de Gaulle or Beauvais), taking about 1 hour 40 minutes.

Are there flights from Ireland to Amsterdam?

Yes. Aer Lingus, KLM, and Ryanair run multiple daily nonstop flights between Dublin and Amsterdam Schiphol, with a flight time of around 1 hour 30 minutes.

Are there flights from Ireland to Oslo?

Yes. Ryanair and Norwegian operate direct flights between Dublin and Oslo, seasonally and year-round respectively, with a flight time of roughly 2 hours 30 minutes.

Do I need a visa to travel to Ireland?

It depends on your nationality. US, Canadian, Australian, New Zealand, UK, and EU/EEA passport holders can visit the Republic of Ireland visa-free for up to 90 days for tourism or business. Citizens of India, China, Nigeria, South Africa, Kenya, and many other countries need a short-stay 'C' visa from the Irish Embassy before travelling. Ireland is not part of the Schengen Area, so its visa rules are separate from the rest of the EU.

How long does an Irish short-stay visa last?

A single-journey Irish 'C' visa costs around €60 and is valid for one entry of up to 90 days. A multiple-journey visa costs around €100 and can remain valid for up to 5 years, though each individual stay is still capped at 90 days within any 180-day period.

What happens if my flight to Ireland is cancelled?

If your flight is cancelled on a route departing the EU (including Ireland) or operated by an EU carrier, you're generally entitled to a refund or rerouting, and possibly compensation, under EU Regulation 261/2004. Contact your airline immediately and keep all receipts for additional costs — these may be recoverable. Triwize's 24/7 customer support team can assist with rebooking and claims for bookings made through our platform.

How long is a flight from the USA to Ireland?

Flight times vary by departure city: around 5 hours 55 minutes from Boston, 6.5-7 hours from New York, roughly 8 hours from Chicago, and 9-10.5 hours nonstop from the West Coast.

Terms and Conditions : Fares are sourced across 500+ airlines and include all taxes, surcharges, and Triwize service fees. Displayed prices are subject to change until ticketed. Tickets are nonrefundable, nontransferable, and subject to airline restrictions; name changes are not permitted. Triwize Coins are earned on qualified bookings, hold no cash value, are non-transferable, and may be modified or discontinued at any time. See full Terms for details.