For fall travel, fly from Seattle to Dublin for $400 round-trip on Icelandair.
For example, we found seats departing Seattle SEA on Tuesday, October 30, returning from Dublin DUB on Thursday, November 8. Flights connect via Reykjavik KEF.
Other dates are available for travel October through mid-December.
Icelandair's light fare only includes carry-on luggage. Checked bag fees start at $76 each way when booked on Icelandair.com. Flying Icelandair, you can also take advantage of their free stopover program if you'd also like to spend a few days in Iceland.
If you prefer to fly nonstop, you can fly on Aer Lingus for $494 round-trip. This fare is also for fall travel and also has a fee for checked luggage.
See our Dublin DUB fare listings for a complete look at current deals to Ireland.
Need a room in Dublin? Here's what's available for the above dates on Hotelwatchdog.