Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast Intl Airport to Seattle as you normally would.
Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Belfast Intl to Seattle. 2 airlines have flights to Seattle/Tacoma Intl from Belfast Intl on a regular basis. Booking flights from Belfast Intl to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from Belfast Intl per day.
United Airlines and British Airways are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.
While on average a flight from Belfast Intl Airport to Seattle is generally £617, our data shows the cheapest flight currently is £617. When looking at the most popular route, (Belfast Intl - Seattle/Tacoma Intl), you can expect to pay £676 for that flight.
Information is based on travel restrictions from Belfast Intl to Seattle/Tacoma Intl
Most visitors from Belfast Intl need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.
COVID-19 testing requirements
Visitors from Belfast Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Seattle/Tacoma Intl.
Quarantine requirements
Visitors from Belfast Intl are not required to quarantine after entering Seattle/Tacoma Intl.
Returning to Belfast Intl from Seattle/Tacoma Intl
COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering Belfast Intl.
Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Belfast Intl.