Cheap Flights Manchester – Seattle from £376

Flight FAQs

• Which airlines offer the cheapest flights from Manchester (MAN) to Seattle (SEA)?

  Based on Trip.com data, Icelandair offers one-way fares as low as £376 on Cheapest nonstop routes (e.g. MAN to SEA on Tue, Mar 17), while Ryanair offers Cheapest nonstop round-trips from £483 departing on Fri, Apr 3 and returning on Mon, Apr 6.

• Which airlines offer direct flights from Manchester to Seattle?

  At the moment, you can catch a direct flight from Manchester to Seattle with the following airlines, including: Aer Lingus Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Manchester to Seattle?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Manchester to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Manchester to Seattle?

  To find best deals on flights from Manchester to Seattle, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Mar 17, with one-way flights priced at just £376.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Icelandair.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from Manchester to Seattle to get the best price?

  The cheapest months to fly from Manchester to Seattle is October, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from Manchester to Seattle?

  After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Manchester to Seattle on March 25, 2026 with Icelandair, with prices starting at £457.

• Which airports can I fly through when travelling to Seattle from Manchester?

  You can land at any one of the following hubs in Seattle, with Manchester Airport to Seattle-Tacoma International Airport (MAN-SEA) is by far the most common option on this route: King County (Boeing Field) International Airport (BFI) Kenmore Air - Lake Union (LKE) Seattle-Tacoma International Airport (SEA).

• What is the time difference between Manchester and Seattle?

  The time difference between Seattle and Manchester is 8h.

• How can I change or cancel my flight ticket from Manchester to Seattle?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.