Cheap flights from Portsmouth to Washington from £476
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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Portsmouth to Washington
Keep the following information in mind while searching for Portsmouth to Washington flight deals. Data was last updated 4 July 2025.
Round-trip from | £735 |
---|---|
One-way from | £476 |
Popular in | August |
Cheapest in | January |
Average price | £719 |
Find flight deals from Portsmouth to Washington
Cheapest flights from Portsmouth to WashingtonExplore the most affordable flight options available from Portsmouth to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.
Explore the most affordable flight options available from Portsmouth to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Portsmouth to Washington 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 4 July 2025.
Use the filters below to find and compare flights from Portsmouth to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Fri 15/8
20:00-17:50
1 stop29h 50m
Seattle/Tacoma Intl
Fri 22/8
19:35-08:35
1 stop29h 00m
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Fri 15/8
09:20-22:07
2 stops20h 47m
Seattle/Tacoma Intl
Fri 22/8
07:10-08:45
2 stops17h 35m
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Fri 15/8
09:20-15:55
1 stop14h 35m
Seattle/Tacoma Intl
Fri 22/8
05:30-08:45
2 stops43h 15m
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Fri 15/8
09:40-19:21
3 stops41h 41m
Seattle/Tacoma Intl
Fri 22/8
08:40-15:45
3 stops23h 05m
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Sun 7/9
20:00-17:50
1 stop29h 50m
SouthamptonSeattle
SOU - SEA
SOUSEA
Southampton Eastleigh
Fri 15/8
16:25-19:21
3 stops34h 56m
Best time to book a flight from Portsmouth to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Portsmouth with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Portsmouth to Washington
What is the cheapest month to book a flight from Portsmouth to State of Washington?
Currently, January is the cheapest month in which you can book a flight from Portsmouth to State of Washington (average of £622). Flying from Portsmouth to State of Washington in July is currently the most expensive (average of £946). 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 WA?
Find hourly flight availability from Portsmouth to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.
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.
Weekly flight availability from Portsmouth to State of Washington
Explore weekly flight availability from Portsmouth to Washington. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 4 July 2025.
The most flights from P0R to USWA are scheduled on a Monday (22 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (11 on average).
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated 4 July 2025.
See what other customers who have flown with Delta, Virgin Atlantic, andAer Lingus from Portsmouth to Washington have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Boarding
Entertainment
Overall
Crew
Food
Reviews
Kim,May 2025
PIH - SLC
Comfort
Boarding
Entertainment
Overall
Crew
Food
Reviews
Kim,May 2025
PIH - SLC
Comfort
Boarding
Entertainment
Overall
Crew
Food
Reviews
Kim,May 2025
PIH - SLC
Comfort
Boarding
Entertainment
Overall
Crew
Food
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Portsmouth to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Portsmouth to Washington
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Portsmouth to Washington
Discover the top 10 airlines that operate flights from Portsmouth to Washington. 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 4 July 2025.
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Can Cheapflights find flights from Portsmouth to Washington with no change fees?
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