Cheap flights from Portsmouth to Washington

LHR — SEA
14 Aug — 21 Aug1
Return
1 adult
Economy
From?
To?
Sun 14/8
Sun 21/8

How far in advance should I book a flight from Portsmouth to State of Washington?

To save up to 21% on this flight, we recommend booking at least 50 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portsmouth to State of Washington from £649 1-2 weeks out and tickets from £735 for flights departing within the next 72 hours.

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

The best pricing can be found in the month of February. Prices to State of Washington from Portsmouth average £574. You can even find prices in February for less than £574, as users have found deals to State of Washington from as low as £401. The month of July appears to be one of the more expensive times to travel to State of Washington from Portsmouth. Flying in the targeted month can save you up to 18%.

When is the cheapest time to fly from Portsmouth to State of Washington (P0R - WA)?

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

Cheap flights from Portsmouth to Washington in August, September 2022

The best prices found for Portsmouth to Washington flights in August, September
21 Sep - 13 Oct
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

23h 35m
SEA

Seattle/Tacoma Intl

SOU

Southampton Eastleigh

2 stops

17h 50m
£644

British Airways

Pick Dates

Deal found 9/8/22

21 Sep - 9 Oct
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

23h 35m
SEA

Seattle/Tacoma Intl

SOU

Southampton Eastleigh

2 stops

16h 00m
£674

British Airways

Pick Dates

Deal found 9/8/22

20 Sep - 13 Oct
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

23h 35m
SEA

Seattle/Tacoma Intl

SOU

Southampton Eastleigh

2 stops

17h 50m
£683

British Airways

Pick Dates

Deal found 9/8/22

Portsmouth to Washington 2022 flight deals

Cheap flights to Washington from Portsmouth found for this year
21 Sep - 13 Oct
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

23h 35m
SEA

Seattle/Tacoma Intl

SOU

Southampton Eastleigh

2 stops

17h 50m
£644

British Airways

Pick Dates

Deal found 9/8/22

21 Sep - 9 Oct
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

23h 35m
SEA

Seattle/Tacoma Intl

SOU

Southampton Eastleigh

2 stops

16h 00m
£674

British Airways

Pick Dates

Deal found 9/8/22

20 Sep - 13 Oct
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

23h 35m
SEA

Seattle/Tacoma Intl

SOU

Southampton Eastleigh

2 stops

17h 50m
£683

British Airways

Pick Dates

Deal found 9/8/22

Cheap British Airways flights from Portsmouth to Washington

21 Sep - 10 Oct
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

23h 35m
SEA

Seattle/Tacoma Intl

SOU

Southampton Eastleigh

2 stops

16h 00m
£644

British Airways

Pick Dates

Deal found 9/8/22

21 Sep - 9 Oct
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

23h 35m
SEA

Seattle/Tacoma Intl

SOU

Southampton Eastleigh

2 stops

16h 00m
£674

British Airways

Pick Dates

Deal found 9/8/22

20 Sep - 13 Oct
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

23h 35m
SEA

Seattle/Tacoma Intl

SOU

Southampton Eastleigh

2 stops

17h 50m
£683

British Airways

Pick Dates

Deal found 9/8/22

One-way flights to Washington from Portsmouth

The cheapest one-way flights from Portsmouth to Washington
18 Sep
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

20h 29m
£1,904

British Airways

Pick Dates

Deal found 9/8/22

24 Sep
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

16h 35m
£1,919

British Airways

Pick Dates

Deal found 7/8/22

17 Sep
SOU

Southampton Eastleigh

SEA

Seattle/Tacoma Intl

2 stops

16h 35m
£1,920

British Airways

Pick Dates

Deal found 9/8/22

Related info for your journey

Useful info, stats and facts about Portsmouth to Washington flights.

Can I find flights from Portsmouth to State of Washington for under £700 on Cheapflights?

Yes, there are multiple flights from Portsmouth to State of Washington for under £700. The cheapest flight booked recently is on British Airways for just £644, but on average you can expect to pay £785.

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

Endeavor Airlines, American Airlines and Air Canada are the most popular airlines when flying from Portsmouth to State of Washington.

What are the most reliable airlines from Portsmouth to State of Washington?

Consider American Airlines (62%), Aer Lingus (62%) or Finnair (62%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to State of Washington.

What are the cheapest flights from Portsmouth to State of Washington?

Looking for the cheapest flight from Portsmouth to State of Washington? While on average our users pay £1,480, our data indicates the cheapest price to be £451. The most popular route (Southampton Eastleigh - Seattle/Tacoma Intl), is priced around £853.

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.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Norwegian Air UKCheapest£320Average£585FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Norwegian Air UK flights
NorwegianCheapest£352Average£481FlexibilityNo cancel feeOn-time74%COVID-19 safety
Search Norwegian flights
IcelandairCheapest£375Average£513FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Icelandair flights
American AirlinesCheapest£381Average£665FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapest£384Average£696FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
United AirlinesCheapest£385Average£709FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
LufthansaCheapest£427Average£564FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Lufthansa flights
Air CanadaCheapest£433Average£580FlexibilityNo cancel feeOn-time67%COVID-19 safety
Search Air Canada flights
FinnairCheapest£446Average£617FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Finnair flights
British AirwaysCheapest£448Average£732FlexibilityNo cancel feeOn-time70%COVID-19 safety
Search British Airways flights

Hourly flight availability from Portsmouth to Washington

See what time of day planes typically take off from Portsmouth to Washington
1%of flight departuresEarly morningMidnight to 6 am
63%of flight departuresMorning6 am to noon
36%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM