Cheap flights from Southampton to Washington, D.C. Dulles Intl Airport from £375
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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Southampton to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) 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 11 julho 2025.
Round-trip from | £650 |
---|---|
One-way from | £375 |
Popular in | July |
Cheapest in | February |
Average price | £657 |
Find flight deals from Southampton to Dulles Intl
Cheapest flights from Southampton to Dulles IntlExplore the most affordable flight options available from Southampton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 julho 2025.
Explore the most affordable flight options available from Southampton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 julho 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Southampton to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 julho 2025.
Use the filters below to find and compare flights from Southampton to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SouthamptonWashington, D.C.
SOU - IAD
SOUIAD
Southampton Eastleigh
ter 19/8
18:25-15:35
1 stop26h 10m
Washington, D.C. Dulles Intl
dom 24/8
20:23-17:00
2 stops15h 37m
SouthamptonWashington, D.C.
SOU - IAD
SOUIAD
Southampton Eastleigh
sáb 23/8
09:20-19:15
2 stops14h 55m
Washington, D.C. Dulles Intl
sáb 30/8
17:25-15:00
1 stop16h 35m
SouthamptonWashington, D.C.
SOU - IAD
SOUIAD
Southampton Eastleigh
sáb 23/8
09:40-15:50
1 stop11h 10m
Washington, D.C. Dulles Intl
sáb 30/8
17:20-08:35
1 stop10h 15m
SouthamptonWashington, D.C.
SOU - IAD
SOUIAD
Southampton Eastleigh
seg 18/8
09:40-15:50
1 stop11h 10m
Washington, D.C. Dulles Intl
ter 26/8
17:20-08:05
1 stop9h 45m
SouthamptonWashington, D.C.
SOU - IAD
SOUIAD
Southampton Eastleigh
seg 15/9
08:05-15:06
3 stops36h 01m
SouthamptonWashington, D.C.
SOU - IAD
SOUIAD
Southampton Eastleigh
dom 14/9
09:10-18:55
1 stop14h 45m
SouthamptonWashington, D.C.
SOU - IAD
SOUIAD
Southampton Eastleigh
seg 8/9
09:40-18:55
1 stop14h 15m
Best time to book a flight from Southampton to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Southampton with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Southampton to Washington, D.C. Dulles Intl Airport
What is the cheapest month to book a flight from Southampton to Washington, D.C. Dulles Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Southampton to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Southampton to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £947). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Dulles Intl
Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 11 julho 2025.
See what other customers who have flown with Delta, Aer Lingus, andBritish Airways from Southampton to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Crew
Entertainment
Comfort
Food
Overall
Reviews
Michael,Jul 2025
AMS - ATL
Boarding
Crew
Entertainment
Comfort
Food
Overall
Reviews
Michael,Jul 2025
AMS - ATL
Boarding
Crew
Entertainment
Comfort
Food
Overall
Reviews
Michael,Jul 2025
AMS - ATL
Boarding
Crew
Entertainment
Comfort
Food
Overall
Reviews
Michael,Jul 2025
AMS - ATL
Related info for your journey
Find useful and relevant information for your journey from Southampton to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Southampton to Dulles Intl
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How does Cheapflights help users find flights from Southampton to Dulles Intl?
Cheapflights makes it easy to find Southampton to Dulles Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Southampton to Dulles Intl?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Southampton to Dulles Intl.
Can Cheapflights find flights from Southampton to Dulles Intl with no change fees?
Need flexible booking options for your flight to Dulles Intl from Southampton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Southampton to Dulles Intl become cheaper?
Yes, Cheapflights offers price alerts on Southampton to Dulles Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.