IAD

£496 Find Cheap Flights from Portsmouth to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portsmouth to Dulles Intl departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Portsmouth to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portsmouth to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Portsmouth to Dulles Intl

Fri, 12 Sep - Fri, 19 Sep
Aer Lingus Logo
09:40 - 18:55SOU-IAD
14h 15m1 stop
Aer Lingus Logo
17:20 - 08:40IAD-SOU
10h 20m1 stop
£567Aer Lingus
Find Deal
Thu, 28 Aug - Wed, 3 Sep
Aer Lingus Logo
09:40 - 15:50SOU-IAD
11h 10m1 stop
Aer Lingus Logo
17:20 - 08:40IAD-SOU
10h 20m1 stop
£628Aer Lingus
Find Deal
Fri, 12 Sep - Fri, 19 Sep
KLM Logo
09:20 - 15:35SOU-IAD
11h 15m1 stop
KLM Logo
17:25 - 08:45IAD-SOU
10h 20m1 stop
£639KLM
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Thu, 28 Aug - Wed, 3 Sep
Logo
09:40 - 22:10SOU-IAD
17h 30m2 stops
Logo
20:30 - 19:30IAD-SOU
18h 00m2 stops
£640
Find Deal
Fri, 12 Sep - Fri, 19 Sep
KLM Logo
09:20 - 19:37SOU-IAD
15h 17m2 stops
KLM Logo
17:25 - 08:45IAD-SOU
10h 20m1 stop
£643KLM
Find Deal
Fri, 12 Sep - Fri, 19 Sep
Virgin Atlantic Logo
09:20 - 13:53SOU-IAD
33h 33m2 stops
Virgin Atlantic Logo
20:17 - 08:45IAD-SOU
55h 28m2 stops
£652Virgin Atlantic
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Thu, 28 Aug - Wed, 3 Sep
Logo
09:20 - 15:20SOU-IAD
35h 00m3 stops
Logo
17:50 - 20:15IAD-SOU
21h 25m3 stops
£657
Find Deal
Fri, 12 Sep - Fri, 19 Sep
Logo
20:15 - 18:55SOU-IAD
27h 40m2 stops
Logo
17:20 - 17:30IAD-SOU
19h 10m2 stops
£664
Find Deal
Thu, 28 Aug - Wed, 3 Sep
KLM Logo
17:35 - 15:35SOU-IAD
27h 00m1 stop
KLM Logo
17:25 - 17:00IAD-SOU
18h 35m1 stop
£698KLM
Find Deal
Thu, 28 Aug - Wed, 3 Sep
Delta Logo
09:20 - 15:35SOU-IAD
11h 15m1 stop
Delta Logo
18:15 - 17:00IAD-SOU
17h 45m2 stops
£734Delta
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Good to know - Cheap tickets from Portsmouth to Washington Dulles Airport

Low seasonJanuary
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (25% more expensive on average)

When to book flights from Portsmouth to Dulles Intl

Are your dates flexible? Find out the best times to travel from Portsmouth to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs for booking Portsmouth to Washington Dulles Airport flights

  • How does KAYAK find such low prices on flights from Portsmouth to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portsmouth to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portsmouth to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Portsmouth is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portsmouth to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Washington Dulles Airport with an airline and back to Portsmouth with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portsmouth to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Portsmouth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Portsmouth to Dulles Intl

Information on your arrival and departure airports

Dulles Intl (IAD)

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