Skip to content
-
Skip to footer
​
United States - English
keyboard_arrow_down
Book
Prepare
Experience
AerClub
Support
Seattle to Southend-on-Sea Flights on Aer Lingus
Roundtrip*
expand_more
1 Passenger(s)
expand_more
Promo Code
expand_more
From:
close
To:
Depart Date
fc-booking-departure-date-aria-label
Jun 9 2025
today
Return Date
fc-booking-return-date-aria-label
Jun 16 2025
today
Search Flights
Home
Flights
To United Kingdom
From Seattle to Southend-on-Sea
Book Seattle to Southend-on-Sea flight deals*
From
location_on
compare_arrows
To
location_on
chevron_left
Jun 2025
No result for this month.
Check Availability
Jul 2025
No result for this month.
Check Availability
Aug 2025
No result for this month.
Check Availability
Sep 2025
No result for this month.
Check Availability
Oct 2025
No result for this month.
Check Availability
Nov 2025
No result for this month.
Check Availability
chevron_right
Displaying fares for June-2025
02
Mo
JUN
03
Tu
04
We
05
Th
06
Fr
07
Sa
08
Su
09
Mo
10
Tu
11
We
12
Th
13
Fr
14
Sa
15
Su
16
Mo
17
Tu
18
We
19
Th
20
Fr
21
Sa
22
Su
23
Mo
24
Tu
25
We
26
Th
27
Fr
28
Sa
29
Su
30
Mo
01
Tu
JUL
chevron_left
chevron_right
Explore other routes
Washington, D.C.
Miami
Orlando
Philadelphia
Hartford
Chicago
Boston
New York/Newark
New York
Los Angeles
San Francisco
Seattle
Explore Aer Lingus's Top-Pick Destinations
Dublin
Amsterdam
Rome
Paris
Lisbon
Edinburgh
Barcelona
Malaga
Manchester
Glasgow
Berlin
Faro
Munich
Bristol
Brussels
Madrid
Birmingham
Zurich
Isle of Man
Aberdeen
Frankfurt
Southampton
Leeds
Dusseldorf
London
Southend-on-Sea
Doncaster
Cardiff
Marseille
Helsinki
View More