Question 1

What is the cheapest month to book a flight from Portsmouth to Washington, D.C.?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Portsmouth to Washington, D.C. (average of £599). Flying from Portsmouth to Washington, D.C. 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.

Question 2

What is the cheapest day to fly from Portsmouth to Washington, D.C.?

Accepted Answer

Travellers seeking maximum savings on their Portsmouth to Washington, D.C. flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 3

Weekly flight availability from Portsmouth to Washington, D.C.

Accepted Answer

The most flights from P0R to WAS are scheduled on a Tuesday (27 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

Question 4

E

Accepted Answer

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Question 5

E

Accepted Answer

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Question 6

What are the most popular routes from Portsmouth to Washington, D.C.?

Accepted Answer

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

Question 7

What are the cheapest flights from Portsmouth to Washington, D.C.?

Accepted Answer

On average you can expect to pay £1,226 for a flight from Portsmouth to Washington, D.C.. The cheapest flight overall is £354 while the most popular route, (Southampton Eastleigh - Baltimore/Washington) is currently priced at £610.

Question 8

What are the most reliable airlines from Portsmouth to Washington, D.C.?

Accepted Answer

Consider United Airlines (92%), Air Canada (90%) or Austrian Airlines (90%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Washington, D.C..

Question 9

What are the most popular airlines that fly from Portsmouth to Washington, D.C.?

Accepted Answer

The most popular airlines flying from Portsmouth to Washington, D.C. are Air France, Finnair and British Airways. Something to consider prior to booking your flight.

Question 10

How far in advance should I book a flight from Portsmouth to Washington, D.C.?

Accepted Answer

Travelers have found it’s best to book a flight 50 days in advance to save up to 34% 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 50 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, D.C. 1-2 weeks in advance for as low as £544, or £706 for flights within the next 24 hours.

Question 11

What is the cheapest month to fly from Portsmouth to Washington, D.C.?

Accepted Answer

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, D.C.. Flights to Washington, D.C. from Portsmouth in February are about £552 on average during February, but can be found for as low as £229.

Question 12

What is the cheapest time of day to fly from P0R to WAS?

Accepted Answer

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

Question 13

Can I find deals for flights from Portsmouth to Washington, D.C. that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Portsmouth to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 14

How can I find direct flights from Portsmouth to Washington, D.C.?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Washington, D.C..

Question 15

Can I find deals for business class flights from Portsmouth to Washington, D.C.?

Accepted Answer

Yes. Cheapflights offers flight deals from Portsmouth to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 16

How does Cheapflights help users find flights from Portsmouth to Washington, D.C.?

Accepted Answer

Deals for Portsmouth to Washington, D.C. flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Question 17

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Washington, D.C.?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Portsmouth to Washington, D.C. by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 18

Can Cheapflights find flights from Portsmouth to Washington, D.C. with no change fees?

Accepted Answer

Certainly. Search results for flights to Washington, D.C. from Portsmouth shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Question 19

Can Cheapflights notify me if prices for flights from Portsmouth to Washington, D.C. become cheaper?

Accepted Answer

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Washington, D.C. from Portsmouth today and book when prices fit your budget.

Round-trip from	£681
One-way from	£314
Popular in	July
Cheapest in	February
Average price	£532

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest£251	Average£463	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Delta	Cheapest£322	Average£769	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Icelandair	Cheapest£351	Average£536	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
TAP AIR PORTUGAL	Cheapest£354	Average£596	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
British Airways	Cheapest£371	Average£629	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Brussels Airlines	Cheapest£385	Average£722	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
JetBlue	Cheapest£385	Average£591	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Scandinavian Airlines	Cheapest£443	Average£588	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Air France	Cheapest£444	Average£612	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Finnair	Cheapest£454	Average£637	FlexibilityNo cancel fee	On-time76%	Search Finnair flights

Cheap flights from Portsmouth to Washington, D.C. from £314

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 26/6. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Washington, D.C.

Keep the following information in mind while searching for Portsmouth to Washington, D.C. flight deals. Data was last updated 24 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portsmouth to Washington, D.C.

Cheapest flights from Portsmouth to Washington, D.C.Explore the most affordable flight options available from Portsmouth to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 April 2025.

Explore the most affordable flight options available from Portsmouth to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 April 2025.

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Best time to book a flight from Portsmouth to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Portsmouth with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Washington, D.C.

What is the cheapest month to book a flight from Portsmouth to Washington, D.C.?

What is the cheapest time of day to fly from P0R to WAS?

Find hourly flight availability from Portsmouth to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 24 April 2025.

What is the cheapest day to fly from Portsmouth to Washington, D.C.?

Use this chart to determine the cheapest time to fly return from Portsmouth to Washington, D.C.. Price data was last updated on 30 June 2024.

Weekly flight availability from Portsmouth to Washington, D.C.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the most popular routes from Portsmouth to Washington, D.C.?

What are the most reliable airlines from Portsmouth to Washington, D.C.?

What are the cheapest flights from Portsmouth to Washington, D.C.?

Can I find deals for flights from Portsmouth to Washington, D.C. that include hotel bookings?

How can I find direct flights from Portsmouth to Washington, D.C.?

Can I find deals for business class flights from Portsmouth to Washington, D.C.?

What is the cheapest month to book a flight from Portsmouth to Washington, D.C.?

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Alternative routes for Portsmouth to Washington, D.C.

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Top 10 airlines flying from Portsmouth to Washington, D.C.

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Can Cheapflights notify me if prices for flights from Portsmouth to Washington, D.C. become cheaper?

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Cheapest flights from Portsmouth to Washington, D.C.
Explore the most affordable flight options available from Portsmouth to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 April 2025.