Cheap flights from Northern Ireland to Seattle

Return
Economy
Boston (BOS)
Seattle (SEA)
Depart
Return
Any month
Compare vs Cheapflights |

How to find the cheapest flight from
Northern Ireland to Seattle (SEA)

All the information you need to plan the best null to SEA flight in 2022: compare Northern Ireland to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
When is the cheapest time to fly from Northern Ireland to Seattle (NIR - SEA)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Northern Ireland to Seattle as you normally would.

Cheap flights from Northern Ireland to Seattle in January, February 2022

The best prices found for Northern Ireland to SEA flights in January, February
30 Jan - 31 Jan
£1,180pp
BHD
Belfast City
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
BHD
Belfast City
30 Jan - 31 Jan
£1,205pp
BHD
Belfast City
Multiple airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
BHD
Belfast City
30 Jan - 31 Jan
£1,261pp
BHD
Belfast City
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
BHD
Belfast City

Northern Ireland to Seattle 2022 flight deals

Cheap flights to Seattle from Northern Ireland found for this year
29 Aug - 19 Sep
£566pp
BHD
Belfast City
Virgin Atlantic
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
 
1 STOP
BHD
Belfast City
29 Aug - 19 Sep
£569pp
BHD
Belfast City
Virgin Atlantic
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
 
1 STOP
BHD
Belfast City
29 Aug - 18 Sep
£701pp
BHD
Belfast City
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
American Airlines
   
2 STOPS
BHD
Belfast City

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Northern Ireland</span> to <span class="emphasized">Seattle</span> flights.

Flight FAQs

From Northern Ireland to Seattle

What airport do you fly into for flights to Seattle from Northern Ireland?

Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Northern Ireland. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

Which airlines flying from Northern Ireland to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Northern Ireland to Seattle/Tacoma Intl that may be offering flexible cancellation policies are United Airlines and British Airways. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

What are the cheapest flights from Northern Ireland to Seattle?

On average you can expect to pay £563 for a flight from Northern Ireland to Seattle. The cheapest flight overall is £552 while the most popular route, (Belfast City - Seattle/Tacoma Intl) is currently priced at £1,180.

Related searches

Flights to Seattle (SEA) from Northern Ireland
Flights to Northern Ireland Flights to Seattle

Hire a Car

Car Rentals in Seattle Car Rentals in USA

COVID Restrictions

View COVID Travel Restrictions for Seattle, WA

Do I need a COVID test to fly to Seattle from Northern Ireland?

Information is based on travel restrictions from Northern Ireland to Seattle/Tacoma Intl

Most visitors from Northern Ireland need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Northern Ireland must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Northern Ireland are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to Northern Ireland from Seattle?

Returning to Northern Ireland from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 48 hours before departing to Northern Ireland.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Northern Ireland.

Hide COVID Travel Restrictions for Seattle, WA

Departure points for flights from Northern Ireland to Seattle

Select to see more specific information for flights to Seattle from all departure points in Northern Ireland.
Show more

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Northern Ireland to Seattle.
Today's exchange rate
£1 = $1.35
Average temperature for January in Seattle
9.0 °C
Avg rainfall for January in Seattle
144.0 mm

Airports servicing

Airports servicing Seattle

Home North America USA Washington Seattle Cheap flights from Northern Ireland to Seattle
  • Return
  • One-way
  • Multi-city
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First