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£512 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 14/7. 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
0 bags
Fri 14/6
Fri 21/6

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

Low season

January

High season

July

Cheapest flight

£512
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly (18% more expensive on average)
Flight from Southampton to Washington Dulles Airport

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.

See more FAQs

Prefer to fly direct from Portsmouth to Washington Dulles Airport?

Find which airlines fly direct from Portsmouth to Dulles Intl, which days they fly and book direct flights.

Direct departures

Portsmouth to Washington, D.C. Dulles Intl

Monday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Tuesday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Wednesday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Thursday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Friday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Saturday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Sunday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Portsmouth

Monday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Tuesday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Wednesday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Thursday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Friday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Saturday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Sunday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

See more direct flights
See more direct flights

Top airline flying from Portsmouth to Dulles Intl

 
Need help choosing which airline to fly with from Portsmouth to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1336 reviews
7.3Boarding
7.1Comfort
6.6Food
7.0Entertainment
8.0Crew
Airline reviews

I fly to the USA every 6wks on Ave and 99% of the time I fly Aer Lingus. If I fly BA I’m always disappointed. My only criticism is the food. I’m vegan and over the last year it’s got slightly better these last couple of flights but on the whole it’s not good! Salad and fruit salad for breakfast and that’s also the starter and desert for the lunch/dinner and the main is usually rice with fried veg 😳the pasta is pretty good though. That’s been the last 2 meals…. Everything else is fantastic.

10.0 ExcellentAnonymous, May 2024MCO - MAN
Read more about Aer Lingus reviews

I fly to the USA every 6wks on Ave and 99% of the time I fly Aer Lingus. If I fly BA I’m always disappointed. My only criticism is the food. I’m vegan and over the last year it’s got slightly better these last couple of flights but on the whole it’s not good! Salad and fruit salad for breakfast and that’s also the starter and desert for the lunch/dinner and the main is usually rice with fried veg 😳the pasta is pretty good though. That’s been the last 2 meals…. Everything else is fantastic.

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

There were a lot of empty rows. As a single passenger I should not have been seated with 2 others. The WiFi didn’t work. The Kosher meal was awful.

They should. Heck planes more often not when they are suppose to be leaving causing delays

Thankfully not a full flight so although my headphone jack wasn’t working 100% on my window seat, I was able to move to the aisle seat. Food was fine, nothing great but tasty enough. Crew were friendly and made enough rounds. Always have a decent experience with Aer Lingus

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Great hospitality and service! Seats are better cushioned then some

Great hospitality and service! Seats could always be cushioned better.

Customs is always a challenge. The customs officials were real humans, which was nice-not robots programmed on angry 😊. If you’re in a hurry to get through you’ll be stressed out. Allow yourselves plenty of time and it will be a stress free experience.

Book cheap flights from Portsmouth to Washington, D.C.

Recent return flight deals

25/9Wed
2 stopsVirgin Atlantic
17h 03mSOU-IAD
29/9Sun
1 stopVirgin Atlantic
20h 45mIAD-SOU
£681
25/9Wed
1 stopVirgin Atlantic
13h 05mSOU-IAD
29/9Sun
1 stopVirgin Atlantic
20h 45mIAD-SOU
£682
25/9Wed
1 stopVirgin Atlantic
13h 05mSOU-IAD
29/9Sun
1 stopVirgin Atlantic
20h 45mIAD-SOU
£683
25/9Wed
2 stopsDelta
19h 48mSOU-IAD
29/9Sun
2 stopsDelta
21h 20mIAD-SOU
£703
30/5Thu
2 stopsBritish Airways
16h 50mSOU-IAD
12/6Wed
2 stopsBritish Airways
14h 57mIAD-SOU
£937
27/5Mon
2 stopsBritish Airways
16h 50mSOU-IAD
3/6Mon
1 stopBritish Airways
11h 00mIAD-SOU
£1,021
28/6Fri
2 stopsBritish Airways
16h 50mSOU-IAD
3/8Sat
2 stopsBritish Airways
13h 05mIAD-SOU
£1,147
28/6Fri
2 stopsBritish Airways
16h 50mSOU-IAD
3/8Sat
1 stopBritish Airways
11h 00mIAD-SOU
£1,177
24/7Wed
2 stopsBritish Airways
17h 00mSOU-IAD
31/8Sat
2 stopsBritish Airways
15h 00mIAD-SOU
£1,239
24/7Wed
2 stopsBritish Airways
17h 00mSOU-IAD
31/8Sat
1 stopBritish Airways
11h 00mIAD-SOU
£1,240

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Recent one-way flight deals

14/7Sun
3 stops
52h 47mSOU-IAD
£512
14/7Sun
3 stops
48h 50mSOU-IAD
£524
14/7Sun
2 stops
29h 30mSOU-IAD
£563
14/7Sun
2 stops
29h 30mSOU-IAD
£564
19/8Mon
1 stopAer Lingus
14h 30mSOU-IAD
£626
14/7Sun
1 stopAer Lingus
11h 00mSOU-IAD
£800
28/9Sat
1 stopDelta
12h 40mSOU-IAD
£1,323
29/9Sun
1 stopBritish Airways
14h 30mSOU-IAD
£1,339
28/9Sat
2 stopsBritish Airways
15h 35mSOU-IAD
£1,355
31/7Wed
1 stopDelta
12h 30mSOU-IAD
£1,556

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Last minute flights from Portsmouth to Dulles Intl

Last minute flight, train and bus deals

19/5Sun
multi-stopBritish Airways
11h 00mSOU-IAD
21/5Tue
multi-stopBritish Airways
11h 00mIAD-SOU
£3,071
19/5Sun
multi-stopBritish Airways
11h 00mSOU-IAD
21/5Tue
multi-stopBritish Airways
15h 40mIAD-SOU
£3,074

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Flights to Washington Dulles Airport

Destination:

Washington Dulles Airport (IAD)United States

Cabin classes:

£351
£530
£543
£72