Skip to content

United flights from Belfast to Seattle

Select journey type

Enter to select travel class and passengers

Book with confidence with United

Low fare calendar for flights from Belfast (BFS) to Seattle (SEA)

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Lowest PriceToday
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

More United deals on Belfast (BFS) to Seattle (SEA) flights

There are no flight results that match your filtered criteria based on user searches within the last 24 hours.

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Seattle

Tuesday scattered clouds
9°C 10/27/20
Wednesday broken clouds
12°C 10/28/20
Thursday overcast clouds
12°C 10/29/20
Friday light rain
11°C 10/30/20
Saturday broken clouds
10°C 10/31/20
Sunday broken clouds
10°C 11/01/20
Monday scattered clouds
13°C 11/02/20
Powered by: OpenWeatherMap.org