✈️ Flight Guide: Dublin (DUB) → Boston (BOS)

Most nonstop flights from Dublin Airport (DUB) to Boston Logan International Airport (BOS) operate from Terminal 2, where U.S. Preclearance is located. Aer Lingus typically uses Terminal 2 for check-in, security, and U.S. Customs and Border Protection (CBP) preclearance before you board. Always verify your terminal and gate in your booking and the DUB app, as operational changes can occur during the busy holiday season.

Arrive 3 to 3.5 hours before departure in December due to holiday crowds and potential weather-related queues. You will clear U.S. Preclearance at Dublin Airport, which adds time for immigration and customs checks. If you need special assistance or are checking bags, consider arriving 3.5 to 4 hours prior.

Yes, Aer Lingus typically operates nonstop Dublin (DUB) to Boston (BOS) flights year-round, including December. Some seasonal carriers reduce or pause winter service, so nonstop options may center on Aer Lingus. If nonstop seats sell out over the holidays, look at 1-stop itineraries via London, Amsterdam, Paris, or Reykjavik.

Pack warm layers for Boston’s winter: a waterproof coat, hat, gloves, thermal base layers, and non-slip footwear. Include medicine in your carry-on, a power bank, and travel adapters (U.S. uses Type A/B, 120V). Weather can be icy and windy near the harbor, so windproof gear is helpful.

Use Dublin Express or Aircoach for frequent services from the city centre, with extra capacity added around Christmas. If driving from counties like Wicklow, Meath, Kildare, or Louth, pre-book parking early as lots fill up. Allow extra buffer time for traffic and weather on the M50 and approach roads.

Irish and EU citizens need a valid passport and an approved ESTA or U.S. visa; ESTA should be obtained at least 72 hours in advance. Non-EU nationals should check U.S. entry requirements and transit rules. All passengers complete U.S. Preclearance formalities at Dublin before departure.

Most international arrivals from Dublin land at Terminal E at Boston Logan International Airport (BOS). Because you clear U.S. immigration and customs in Dublin, you typically deplane as a domestic arrival, which can speed up your exit and baggage claim in Boston.

Use the MBTA Silver Line (free from the airport) to South Station for downtown connections, or take Logan Express to Back Bay. Rideshares and taxis are plentiful but can surge in snow or during events. For Cambridge, transfer to the Red Line at South Station; for Seaport, the Silver Line continues directly.

December is festive in Boston with holiday markets, performances, and ice skating, though it’s chilly and occasionally snowy. Day trips to Salem, Providence, and Lexington/Concord offer seasonal lights and historic charm, while Cape Cod and Newport feature mansion holiday tours and coastal winter strolls.

By car, Boston Logan to Providence (RI) is about 1–1.5 hours, Worcester (MA) 1–1.5 hours, and Manchester (NH) roughly 1–1.25 hours, depending on traffic and weather. Commuter rail and bus options exist to many New England hubs, but schedules can be reduced around holidays or storms.