Cheap flights from London Southend Airport to Washington, D.C. Dulles Intl Airport from £376
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/11. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Southend to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Southend (SEN) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 October 2025.
Find flight deals from Southend to Dulles Intl
Cheapest flights from Southend to Dulles IntlExplore the most affordable flight options available from Southend to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 October 2025.
Explore the most affordable flight options available from Southend to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 October 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from London Southend Airport to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonWashington, D.C.
SEN - IAD
SENIAD
London Southend
Wed 10/12
07:10-18:30
2 stops16h 20m
Washington, D.C. Dulles Intl
Wed 17/12
19:40-21:00
2 stops20h 20m
LondonWashington, D.C.
SEN - IAD
SENIAD
London Southend
Wed 19/11
07:10-17:15
2 stops15h 05m
Washington, D.C. Dulles Intl
Sat 22/11
20:30-20:50
2 stops19h 20m
LondonWashington, D.C.
SEN - IAD
SENIAD
London Southend
Tue 23/12
07:00-21:00
3 stops43h 00m
Washington, D.C. Dulles Intl
Tue 30/12
17:30-22:55
3 stops24h 25m
LondonWashington, D.C.
SEN - IAD
SENIAD
London Southend
Sat 20/12
07:15-19:30
2 stops17h 15m
Washington, D.C. Dulles Intl
Sun 4/1
21:00-14:50
2 stops12h 50m
LondonWashington, D.C.
SEN - IAD
SENIAD
London Southend
Fri 7/11
06:40-16:05
1 stop14h 25m
Washington, D.C. Dulles Intl
Fri 14/11
18:05-10:00
1 stop10h 55m
LondonWashington, D.C.
SEN - IAD
SENIAD
London Southend
Fri 19/12
06:40-19:30
2 stops17h 50m
Washington, D.C. Dulles Intl
Sat 3/1
21:00-20:10
2 stops18h 10m
LondonWashington, D.C.
SEN - IAD
SENIAD
London Southend
Fri 5/12
06:40-19:30
2 stops17h 50m
Washington, D.C. Dulles Intl
Sat 20/12
17:05-20:10
2 stops22h 05m
LondonWashington, D.C.
SEN - IAD
SENIAD
London Southend
Sat 13/12
06:30-21:00
3 stops43h 30m
Washington, D.C. Dulles Intl
Sun 4/1
18:50-10:30
1 stop10h 40m
LondonWashington, D.C.
SEN - IAD
SENIAD
London Southend
Sat 20/12
07:15-18:30
2 stops16h 15m
Washington, D.C. Dulles Intl
Sat 27/12
19:40-20:10
2 stops19h 30m
LondonWashington, D.C.
SEN - IAD
SENIAD
London Southend
Fri 19/12
06:40-19:15
2 stops17h 35m
Washington, D.C. Dulles Intl
Mon 22/12
18:05-10:15
1 stop11h 10m
Best time to book a flight from Southend to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Southend with our price prediction graph.
Related info for your journey
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Alternative routes for Southend to Dulles Intl
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How does Cheapflights help users find flights from Southend to Dulles Intl?
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Can Cheapflights find flights from Southend to Dulles Intl with no change fees?
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