International route
Cheap flights from Dublin to Seattle
Dublin Airport (DUB) to Seattle-Tacoma International Airport (SEA). 4,526 miles, 9h 25m nonstop.
DUB to SEA at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 4,526 milesgreat-circle
- Typical flight time
- 9h 25mnonstop, gate to gate
- Nonstop airlines
- DLEI2 airlinesDelta, Aer Lingus
- Nonstop flights per day
- 2all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Wednesday15% less than Sunday
- Time difference
- 8h behindSeattle vs Dublin
Dublin to Seattle
Round trips from $406
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 26.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppDublin to Seattle fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Dublin to Seattle
2 airlines fly nonstop with 2 departures a day combined, plus 16 more with one stop.
- EIAer LingusNonstop · 1 flight a day · first checked bag from $70
- DLDelta Air LinesSkyTeamNonstop · 1 flight a day · first checked bag from $35
- AFAir FranceSkyTeamConnecting via ORY · first checked bag from $75
- ASAlaska AirlinesoneworldConnecting via PDX, SFO, LAX, SAN · first checked bag from $35
- AAAmerican AirlinesoneworldConnecting via DFW, MIA, PHX, LAX, DCA, JFK · first checked bag from $40
- BABritish AirwaysoneworldConnecting via LHR, LGW · first checked bag from $75
- AYFinnaironeworldConnecting via HEL · first checked bag from $70
- AZITA AirwaysConnecting via FCO · first checked bag from $70
- B6JetBlueConnecting via JFK, BOS, FLL, LAX · first checked bag from $40
- KLKLM Royal Dutch AirlinesSkyTeamConnecting via AMS · first checked bag from $75
- LHLufthansaStar AllianceConnecting via FRA, MUC · first checked bag from $75
- NONorse Atlantic AirwaysLow-costConnecting via OSL · first checked bag from $80
- SKSAS Scandinavian AirlinesSkyTeamConnecting via CPH, ARN, OSL · first checked bag from $70
- LXSWISSStar AllianceConnecting via ZRH, GVA · first checked bag from $75
- TPTAP Air PortugalStar AllianceConnecting via LIS, OPO · first checked bag from $70
- UAUnited AirlinesStar AllianceConnecting via IAH, EWR, IAD, LAX · first checked bag from $40
- VSVirgin AtlanticSkyTeamConnecting via LHR, MAN · first checked bag from $75
- WSWestJetConnecting via YYZ · first checked bag from $35
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Los Angeles (LAX)AAUAB6AS4 airlines
- New York (JFK)AAB62 airlines
- London (LHR)BAVS2 airlines
- Oslo (OSL)SKNO2 airlines
- Dallas (DFW)AA1 airline
Tips for this route
- Only Delta and Aer Lingus fly this route nonstop, which keeps nonstop fares firm. A one-stop itinerary through LAX or JFK is usually cheaper if you can spare the extra three to five hours.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $406; September 2026 is the most expensive at $517 and up, a difference of $111 per traveler.
- Departing on a Wednesday averages 15% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Book 2 to 5 months ahead for the best fares; long-haul seats sell out earliest for summer and holiday travel.
- Seattle is 8 hours behind Dublin. A morning departure lands in Seattle with most of the day left; an evening flight arrives close to local dinner time.
Destination guide
Seattle: Coffee, mountains and Puget Sound
Seattle is the Pacific Northwest's gateway: Pike Place Market, the Space Needle and ferries across Puget Sound, with Mount Rainier and the Olympic Peninsula a couple of hours away. Sea-Tac is a Delta and Alaska hub with light rail downtown.
Best time to visit: July–September is dry, sunny and gorgeous — and the most expensive. May–June and late September are good compromises. October–April is gray and drizzly but cheap.
Flying the other way? Seattle to DublinFares, airlines and tips for SEA to DUB.Ready to compare live fares?
See every airline on DUB–SEA side by side with bags and seat rules spelled out.
Search Dublin to SeattleDublin to Seattle: common questions
How long is the flight from Dublin to Seattle?
A nonstop flight from Dublin (DUB) to Seattle (SEA) takes about 9h 25m gate to gate, covering 4,526 miles. Connecting itineraries add the layover, typically 2 to 5 hours more in total.
Which airlines fly nonstop from DUB to SEA?
Delta Air Lines and Aer Lingus operate nonstop flights from Dublin (DUB) to Seattle (SEA), with 2 nonstop departures a day between them. One-stop options connect through LAX, JFK and LHR.
What is the cheapest month to fly from Dublin to Seattle?
Over the next six months, January 2027 has the lowest round-trip fares from Dublin (DUB) to Seattle (SEA), starting at $406 per traveler including taxes and fees. Within any month, Wednesday departures average the lowest prices.
How far in advance should I book Dublin to Seattle flights?
Book 2 to 5 months ahead for the best fares; long-haul seats sell out earliest for summer and holiday travel. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Dublin and Seattle?
Seattle is 8 hours behind Dublin. DUB is on Europe/Dublin time and SEA on America/Los Angeles time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.