Cheap Flights from Dublin to Washington

The expensive stretch is the summer: fares out of Dublin climb once the school holidays begin and stay high through June and July, while Thanksgiving in the United States and the Christmas and New Year gap push prices up from the other side of the calendar. Work back from those peaks and the curve slides down through autumn and spring, with October the cheapest month to fly.

Midweek departures usually cost less than Friday or Sunday, and mid-March rewards early booking because St. Patrick's week lifts demand both ways. A couple of months of lead time normally holds the fare down.

Aer Lingus matters most here because it flies the route nonstop, and its standard transatlantic fares usually include a checked bag, meals and seat selection; the cheaper tiers on the same aircraft trim some of that, so read what the fare covers before you pay.

None of the others are no-frills operators: Icelandair, TAP Portugal, Scandinavian Airlines, Finnair, Iberia and Turkish Airlines sell full-service tickets through their home hubs — Reykjavik, Lisbon, Copenhagen, Helsinki, Madrid, Istanbul — while BA CityFlyer adds a London routing and JetBlue and American Airlines supply the US leg. What matters more is the tier: basic economy on US carriers turns the checked bag into an add-on.

Land in the evening and the choice of airport starts to matter. Reagan National sits closest to central Washington with its own metro station; Dulles lies far out among the Virginia suburbs, where the trip into town needs the metro link, a bus or a car; Baltimore is really a separate city to the north-east, with the longest transfer of the three.

Dublin softens the landing: the departure airport runs US preclearance, so you clear American immigration before you board in Ireland and step off as a domestic passenger. Collect your bags, check whether the metro still runs when you arrive, and keep a taxi as the fallback after the last train.

Currency

USD ($)

Power sockets

Type A, B · 120 V

Language

Samoan, Hawaiian, Chamorro, Carolinian, Spanish

Emergency number

911

Driving side

right

Calling code

+1

Internet domain

.us

Population of Washington

690 k (2020)

Time zone

UTC-04 (America/New_York)

Country facts: Wikidata

• Check whether the cheap combination is one ticket or two separate bookings, because a missed connection on separate ones is rebooked at your own cost.
• Price the baggage, not just the fare, since basic economy on the US carriers moves the checked bag into the paid column.
• Look at which Washington airport the ticket lands at — Baltimore, Reagan National or Dulles — because the transfer into town differs sharply.
• Sort out United States entry documents before you pay; most travellers from Ireland fly on an approved ESTA.
• Start any flexible search in October, the cheapest month in the data, and let the calendar pull the rest of your dates.