Find flights
When to book
Airlines
FAQs

Cheap flights from Portsmouth to Washington, D.C. Reagan-National Airport from £648

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DCA
1 Apr — 8 Apr1
1 adult

Cheap flight deals from Portsmouth to Reagan-National

Keep the following information in mind while searching for Portsmouth to Reagan-National flight deals. Data was last updated 27 March 2025.

Round-trip from

£648

Popular in

July

Cheapest in

February

Average price

£526
Delta
  • Delta
  • 24/4-29/4
  • 4 total stops
  • 30h 04m total
  • Portsmouth to Washington, D.C.
Highest demand for flights based on searches. 12% potential increase in price (£62 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Average for round-trip flights in March 2025

Find flight deals from Portsmouth to Reagan-National

Cheapest flights from Portsmouth to Reagan-National
Explore the most affordable flight options available from Portsmouth to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 March 2025.

Thu 24/409:20SOU - DCA
2 stops17h 44mDelta
Tue 29/415:25DCA - SOU
2 stops12h 20mDelta
Deal found 27/3£648
Sun 11/509:10SOU - DCA
3 stops30h 09mMultiple Airlines
Sun 18/506:00DCA - SOU
3 stops32h 30mMultiple Airlines
Deal found 27/3£737

Cheapflights Fare Finder

Customise your flight search to find flights from Portsmouth to Reagan-National that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 March 2025.
Use the filters below to find and compare flights from Portsmouth to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Portsmouth

Fly to

Reagan-National

Route

Depart

Return

Price

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Thu 24/4

09:20-22:04

2 stops17h 44m

Washington, D.C. Reagan-National

Tue 29/4

15:25-08:45

2 stops12h 20m

£648

SouthamptonWashington, D.C.

SOU - DCA

SOUDCA

Southampton Eastleigh

Sun 11/5

09:10-10:19

3 stops30h 09m

Washington, D.C. Reagan-National

Sun 18/5

06:00-19:30

3 stops32h 30m

£737

Flights are sorted by cheapest return flights first.

Deals found on 27/3

Best time to book a flight from Portsmouth to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Portsmouth with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Washington, D.C. Reagan-National Airport

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

Currently, February is the cheapest month in which you can book a flight from Portsmouth to Washington, D.C. Reagan-National Airport (average of £625). Flying from Portsmouth to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £934). 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.

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

Find hourly flight availability from Portsmouth to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 March 2025.

When flying from Portsmouth to Washington, D.C. Reagan-National Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport 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. Reagan-National Airport when rainfall is around 66.0 mm.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, 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).

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Reagan-National. Reviews last updated 27 March 2025.

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find deals for flights from Portsmouth to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Portsmouth to Reagan-National flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to Reagan-National?

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

  • Can I find deals for business class flights from Portsmouth to Reagan-National?

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

  • What is the cheapest month to book a flight from Portsmouth to Washington, D.C. Reagan-National Airport?

    Currently, February is the cheapest month in which you can book a flight from Portsmouth to Washington, D.C. Reagan-National Airport (average of £625). Flying from Portsmouth to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £934). 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.

See more FAQs

Travelling to a place near Portsmouth?

Book flights to Portsmouth if you plan to visit one of these locations
Silver Spring
Arlington
Woodbridge
College Park
Laurel
Tysons

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portsmouth to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Portsmouth to Reagan-National

Discover the top 10 airlines that operate flights from Portsmouth to Reagan-National. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 March 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£287Average£588FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IcelandairCheapest£378Average£557FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£397Average£594FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
LufthansaCheapest£499Average£664FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£506Average£732FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£506Average£607FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£507Average£669FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£511Average£681FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£530Average£744FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest£579Average£763FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portsmouth to Reagan-National?

When you search for this flight from Portsmouth to Reagan-National, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Reagan-National?

Cheapflights helps you find that perfect flight to Reagan-National from Portsmouth by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Portsmouth to Reagan-National with no change fees?

Yes, we can. To see specific flights from Portsmouth to Reagan-National with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Portsmouth to Reagan-National become cheaper?

Yes, Cheapflights offers price alerts on Portsmouth to Reagan-National flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.