$510 Cheap Aer Lingus flights Seattle (SEA) to Newquay (NQY)

Landing cheap one-way Aer Lingus flights from SEA to NQY from $510 on Expedia is easy — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly return fares from $860 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

To get cheap flights from SEA to NQY with Aer Lingus, begin searching about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another useful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

To find the earliest departure from SEA to NQY with Aer Lingus, filter your search by "Early Morning" and "Morning." Booking an early flight usually means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.

Flying from SEA to NQY with Aer Lingus comes with a range of perks, including a 4-star airline rating and a rewarding loyalty program. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to spend on select future travel purchases. That's in addition to the Aer Lingus AerClub points you can earn with Aer Lingus.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.