IAD

£504 Find Cheap Flights from Portsmouth to Washington Dulles Airport

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portsmouth to Dulles Intl departing on 25/4. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

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Everything you should know

Cheapest return fare
£504
Aer Lingus
Sat 25/4Sat 2/5
SOU - IAD • 1 stop
Cheapest one-way flight
£527
British Airways
Wed 29/4
SOU - IAD • 1 stop
Direct flights
Every day
You can fly direct with ANA, Aer Lingus, and others. Average duration is 0
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Useful Info
Flight Deals

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

Sat, 25 Apr - Sat, 2 May
Aer Lingus Logo
09:20 - 15:45
SOU
-
IAD
11h 25m
1 stop
Aer Lingus Logo
20:40 - 19:30
IAD
-
SOU
17h 50m
1 stop
£504Aer Lingus
Fri, 24 Apr - Fri, 1 May
Aer Lingus Logo
20:00 - 15:45
SOU
-
IAD
24h 45m
1 stop
Aer Lingus Logo
20:55 - 19:30
IAD
-
SOU
17h 35m
1 stop
£573Aer Lingus
Fri, 24 Apr - Fri, 1 May
Multiple Airlines Logo
08:55 - 19:25
SOU
-
IAD
15h 30m
2 stops
Multiple Airlines Logo
17:15 - 08:40
IAD
-
SOU
10h 25m
1 stop
£634Multiple Airlines
Sat, 25 Apr - Sat, 2 May
Multiple Airlines Logo
06:50 - 19:10
SOU
-
IAD
17h 20m
2 stops
Multiple Airlines Logo
20:40 - 19:30
IAD
-
SOU
17h 50m
1 stop
£636Multiple Airlines
Sun, 26 Apr - Sun, 3 May
Aer Lingus Logo
09:20 - 15:45
SOU
-
IAD
11h 25m
1 stop
Aer Lingus Logo
20:55 - 08:40
IAD
-
SOU
30h 45m
1 stop
£644Aer Lingus
Fri, 24 Apr - Fri, 1 May
Multiple Airlines Logo
06:50 - 19:25
SOU
-
IAD
17h 35m
2 stops
Multiple Airlines Logo
17:15 - 11:45
IAD
-
SOU
13h 30m
2 stops
£674Multiple Airlines
Mon, 30 Mar - Mon, 6 Apr
Aer Lingus Logo
20:00 - 15:45
SOU
-
IAD
24h 45m
1 stop
Aer Lingus Logo
17:15 - 08:40
IAD
-
SOU
10h 25m
1 stop
£699Aer Lingus
Wed, 15 Apr - Sun, 19 Apr
British Airways Logo
09:20 - 15:45
SOU
-
IAD
11h 25m
1 stop
British Airways Logo
17:15 - 08:40
IAD
-
SOU
10h 25m
1 stop
£700British Airways
Wed, 15 Apr - Sun, 19 Apr
British Airways Logo
09:20 - 15:45
SOU
-
IAD
11h 25m
1 stop
British Airways Logo
19:05 - 08:25
IAD
-
SOU
32h 20m
2 stops
£717British Airways
Wed, 15 Apr - Sun, 19 Apr
British Airways Logo
09:20 - 15:45
SOU
-
IAD
11h 25m
1 stop
British Airways Logo
17:15 - 08:40
IAD
-
SOU
10h 25m
1 stop
£729British Airways
Useful Info

Good to know - Cheap tickets from Portsmouth to Washington Dulles Airport

Low seasonJanuary
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly (23% 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)