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Aer Lingus flies nonstop to Dublin from over a dozen US cities, making it one of the easiest transatlantic trips you can book. Routes operate year-round from JFK, Boston, Newark, Chicago, Philadelphia, Washington Dulles, and several other gateways. Flights from the East Coast take about 7 hours. West Coast departures run closer to 10 or 11. Dublin Airport is the airline's main hub, so connections onward to the UK and Europe are quick.
John F. Kennedy International Airport (JFK)
Aer Lingus runs up to three daily nonstop flights from JFK to Dublin during peak summer months. Flight time is around 6.5 to 7 hours eastbound. JFK is the single busiest Aer Lingus route from the US, and the airline operates from Terminal 5.
Boston Logan International Airport (BOS)
Boston gets up to three daily nonstop flights to Dublin in summer 2026, making it one of the highest-frequency Aer Lingus routes. Flight time runs about 6 hours eastbound. Strong Irish-American ties keep this route busy year-round.
Newark Liberty International Airport (EWR)
Aer Lingus operates daily nonstop service from Newark to Dublin. The flight takes roughly 7 hours. Newark is a solid alternative to JFK for travelers in northern New Jersey and parts of Connecticut.
O'Hare International Airport (ORD)
Daily nonstop flights connect Chicago O'Hare to Dublin in about 7.5 hours. Aer Lingus typically uses the A330 on this route, which means a widebody cabin with more space than the A321 used on shorter East Coast runs.
Philadelphia International Airport (PHL)
Aer Lingus flies nonstop from Philadelphia to Dublin, with service running daily in summer and several times per week in winter. Flight time is roughly 7 hours. Philly is a convenient option for travelers across the mid-Atlantic region.
Los Angeles International Airport (LAX)
The West Coast's main Aer Lingus gateway, LAX to Dublin is around 10 to 11 hours nonstop. Flights operate daily during peak season. Aer Lingus uses the A330-300 widebody on this route given the distance.
Cheapest Months to Travel
January, February, November typically offer the lowest fares, falling outside peak tourist seasons. Availability is better and pricing more competitive during these windows.
Peak Travel Seasons to Avoid
June through August and the Christmas/New Year period are the priciest windows. St. Patrick's Day week in March also sees a noticeable fare bump on Dublin routes.
Best Time to Book
Booking 6 to 10 weeks ahead tends to get the best pricing. For summer travel, 3 to 4 months in advance is safer. Aer Lingus runs sales a few times a year with transatlantic fares starting around $229 each way.
Midweek Advantage
Tuesday and Wednesday departures consistently price lower than weekend flights. Red-eye options from the US also tend to be cheaper than daytime departures.
Time Difference to Keep in Mind
Ireland operates on Greenwich Mean Time (GMT) in winter and Irish Standard Time (IST, GMT+1) in summer. That puts Dublin +5 hours ahead of New York (Eastern) and +8 hours ahead of Los Angeles (Pacific) for most of the year.
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