How to get from Belfast to Seattle

No nonstop flights. The fastest way is via London: about 14h 30m including the connection. Other options: via Amsterdam and Paris. Two tickets from $576.

Flights from Belfast to Seattle

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

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Where to connect

Options with one connection, fastest first

fastest, via London
14h 30m
two tickets, via London
$576
connection options
3
straight-line distance
4,466 mi (7,188 km)
fastest
Via London
14h 30m
with the connection
Belfast to London flight 1h 20m
Connection of about 3h Arrival: London City, London Gatwick, London Heathrow, London Luton, Stansted. Departure to Seattle: London Heathrow.
London to Seattle flight 10h 10m
two ticketsfrom $576
Via Amsterdam
Netherlands
14h 48m
with the connection
Belfast to Amsterdam flight 1h 35m
Connection of about 3h
Amsterdam to Seattle flight 10h 13m
two ticketsfrom $896
Via Paris
France
15h 15m
with the connection
Belfast to Paris flight 1h 50m
Connection of about 3h
Paris to Seattle flight 10h 25m
two ticketsfrom $1,135

One ticket or two

How the options are calculated and what to keep in mind at the connection

Flight times come from the nonstop schedule (estimated from the distance where there is no schedule), with 3h allowed for the connection. The price of an option is the sum of the lowest known fares for each leg; their dates may not match, so treat it as a guide. The search shows tickets for your dates, including connections on a single ticket.

When to visit Seattle

Weather by month

Best time to visit: May, June, July, August and September, +17° to +25° by day. In November it is +10° by day and +5° at night, with 17 rainy days.

Jan
+8° +2° 16 days
Feb
+8° +2° 14 days
Mar
+11° +4° 15 days
Apr
+13° +6° 14 days
May
+17° +9° 11 days
Jun
+21° +12° 7 days
Jul
+25° +15° 1 days
Aug
+25° +15° 6 days
Sep
+21° +13° 7 days
Oct
+15° +9° 14 days
Nov
+10° +5° 17 days
Dec
+8° +4° 20 days

Daytime and night temperatures in °C, rainy days. Months with the most comfortable weather are in green. Long-term averages.

Nearest nonstop flights

The closest you can get without a connection

Frequently asked questions

Is there a nonstop flight from Belfast to Seattle?
There are no nonstop flights in the schedule. You will need a connection, the fastest is via London.
What is the fastest way to fly from Belfast to Seattle?
Via London: 1h 20m to the connection, 10h 10m after it, about 14h 30m in total with 3h for the connection.
How much does a flight from Belfast to Seattle with a connection cost?
Two nonstop tickets via London from $576. This is the sum of the lowest known prices for each leg, and their dates may not match.
Which cities can you connect in between Belfast and Seattle?
London (14h 30m total), Amsterdam (14h 48m total) and Paris (15h 15m total).
How far is Seattle from Belfast?
4,466 mi (7,188 km) in a straight line between the cities.
How much time should I allow for the connection?
The options allow 3h. On a single ticket the carrier is responsible for the connection; on separate tickets you set the margin yourself, allowing time to collect and re-check your bags.