Cheap flights from Cork to Seattle

Give yourself several months of lead time; this route crosses from Ireland to the United States with a stop, seats on Aer Lingus and Lufthansa are finite, and fares tend to rise as departure closes in. March is the cheapest month here, a quiet shoulder-season window, while October, November, December and January also carry quoted fares worth comparing. July sits at the other extreme: summer is when Seattle draws the biggest crowds and when any Europe to United States route firms up. Midweek departures often price below weekend ones, and the Christmas and New Year stretch plus Thanksgiving week bring demand spikes worth sidestepping when your dates can move.

The mix is unambiguous: no low-cost carrier flies this route, so every ticket comes from a full-service airline — Aer Lingus or Lufthansa — with a connection built in. Both include onboard service and cabin baggage on the long leg as standard; where they differ is the connecting airport each uses, which reshapes total travel time, and how much the cheapest fare tier carries, since checked bags, seat selection and changes can cost extra on the basic tiers. Read the fare conditions rather than assuming the two bundle the same things.

Most itineraries reach Seattle Tacoma in the afternoon or evening because of the time difference, which changes your first moves: the light rail line into downtown still runs, but service thins as the night goes on, so with luggage or a late landing a taxi or rideshare is the simpler choice. The airport sits well south of the city as the region's main gateway, a drive rather than a walk from anywhere you are likely to stay, with rental cars, shuttles and taxis all staging there. Leave room for weekday rush hours on the ride in, and treat the transfer as part of the trip rather than an afterthought.

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 Seattle

737 k (2020)

Time zone

UTC-07 (America/Los_Angeles)

Country facts: Wikidata

• Book the whole journey as one ticket rather than two separate ones, so the carrier rebooks you when a connection fails.
• Check the connection time in both directions and keep a buffer, because a missed transfer here can cost you most of a day.
• Read the fare tier before paying, since the lowest Aer Lingus and Lufthansa economy fares can leave the checked bag out.
• Sort out the travel authorisation the United States requires for your nationality well before booking, as approval is not instant.
• Price March against July in the calendar, because the same trip can cost far less outside the summer peak.