Cheap flights from Portsmouth to Washington

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How to find the cheapest flight from
Portsmouth to Washington (WAS)

All the information you need to plan the best null to WAS flight in 2021: compare Portsmouth to Washington flight prices with the expected peak season, weather and rainfall in Washington.
How far in advance should I book a flight from Portsmouth to Washington?

Travellers have found it’s best to book a flight 34 days in advance to save up to 27% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 34 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portsmouth to Washington 1-2 weeks in advance for as low as £553, or £646 for flights within the next 24 hours.

When is the cheapest time to fly from Portsmouth to Washington (P0R - WAS)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Washington as you normally would.

What is the cheapest month to fly from Portsmouth to Washington?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to Washington. Flights to Washington from Portsmouth in February are about £506 on average during February, but can be found for as low as £338.

Cheap flights from Portsmouth to Washington in December, January 2022

The best prices found for Portsmouth to WAS flights in December, January
22 Jan - 5 Feb
£2,857pp
SOU
Southampton Eastleigh
Delta
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Delta
   
2 STOPS
SOU
Southampton Eastleigh
22 Jan - 5 Feb
£2,858pp
SOU
Southampton Eastleigh
Delta
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Delta
 
1 STOP
SOU
Southampton Eastleigh
22 Jan - 5 Feb
£2,861pp
SOU
Southampton Eastleigh
Delta
   
2 STOPS
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Delta
   
2 STOPS
SOU
Southampton Eastleigh

One-way flights to Washington from Portsmouth

The cheapest one-way flights from Portsmouth to Washington
07:45 - 09:15
Multiple Airlines
2 stops
30h 30m
SOU - IAD
Multiple Airlines
£567
Kiwi.com
12:20 - 08:10
Aeroflot
2 stops
48h 50m
SOU - IAD
Aeroflot
£982
Bookingwiz.co.th
05:20 - 11:40
Delta
1 stop
11h 20m
SOU - IAD
Delta
£6,033
Delta

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Portsmouth</span> to <span class="emphasized">Washington</span> flights.

Flight FAQs

From Portsmouth to Washington

Can I find flights from Portsmouth to Washington for under £2,900 on Cheapflights?

Yes, there are multiple flights from Portsmouth to Washington for under £2,900. The cheapest flight booked recently is on Delta for just £2,857, but on average you can expect to pay £3,285.

What are the most reliable airlines from Portsmouth to Washington?

Consider Air Canada (96%), Austrian Airlines (96%) or Copa Airlines (96%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Washington.

What are the most popular airlines that fly from Portsmouth to Washington?

The most popular airlines flying from Portsmouth to Washington are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

What are the most popular routes from Portsmouth to Washington?

The most popular route from Portsmouth to Washington is Southampton Eastleigh - Baltimore/Washington. You may also consider Southampton Eastleigh - Washington Reagan-National or Southampton Eastleigh - Washington Dulles Intl.

What are the cheapest flights from Portsmouth to Washington?

On average you can expect to pay £964 for a flight from Portsmouth to Washington. The cheapest flight overall is £283 while the most popular route, (Southampton Eastleigh - Baltimore/Washington) is currently priced at £4,015.

COVID Restrictions

View COVID Travel Restrictions for Washington, DC

Do I need a COVID test to fly to Washington from Portsmouth?

Information is based on travel restrictions from Portsmouth to Washington

Most visitors from Portsmouth need to provide a negative COVID-19 test result and/or quarantine to enter Washington.

COVID-19 testing requirements
Visitors from Portsmouth must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Washington.

Quarantine requirements
Visitors from Portsmouth are not required to quarantine after entering Washington.

Do I need a test to fly back to Portsmouth from Washington?

Returning to Portsmouth from Washington

COVID-19 testing requirements
Visitors from Washington must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Portsmouth.

Quarantine requirements
Visitors from Washington are not required to quarantine after entering Portsmouth.

Hide COVID Travel Restrictions for Washington, DC

Destination information for Washington

Things to know before you go - useful duration and weather info for your trip from Portsmouth to Washington.
Today's exchange rate
£1 = $1.33
Average temperature for December in Washington
10.0 °C
Avg rainfall for December in Washington
80.0 mm

Airports servicing Portsmouth

Airports servicing Washington

Reagan-National (DCA)

Top 10 airlines flying from Portsmouth to Washington

The chart below displays the airlines Cheapflights users travelling from Portsmouth to Washington choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Virgin Atlantic
£282 £566 No cancel fee 72%
Search Virgin Atlantic flights
United Airlines
£293 £637 No cancel fee 69%
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British Airways
£296 £702 No cancel fee 70%
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Air Canada
£297 £534 No cancel fee 67%
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American Airlines
£306 £540 No cancel fee 71%
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Austrian Airlines
£312 £633 No cancel fee 78%
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SAS
£313 £547 No cancel fee 77%
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TAP AIR PORTUGAL
£317 £442 No cancel fee N/A
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Iberia
£340 £677 No cancel fee 77%
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Delta
£346 £684 No cancel fee N/A
Search Delta flights

Hourly flight availability from Portsmouth to Washington

See what time of day planes typically take off from Portsmouth towards Washington.
Morning 6 AM to midday 52% of flight departures
Afternoon Midday to 6 PM 47% of flight departures
Early morning Midnight to 6 AM 1% of flight departures
Evening 6 PM to midnight 0% of flight departures
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