Cheap flights from Portsmouth to Boston from £459
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Portsmouth to Boston
Keep the following information in mind while searching for Portsmouth to Boston flight deals. Data was last updated 13 June 2025.
Find flight deals from Portsmouth to Boston
Cheapest flights from Portsmouth to BostonExplore the most affordable flight options available from Portsmouth to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.
Explore the most affordable flight options available from Portsmouth to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Portsmouth to Boston 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 13 June 2025.
Use the filters below to find and compare flights from Portsmouth to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SouthamptonBoston
SOU - BOS
SOUBOS
Southampton Eastleigh
Thu 10/7
09:20-16:30
1 stop12h 10m
Boston Logan Intl
Thu 17/7
18:40-08:45
1 stop9h 05m
SouthamptonBoston
SOU - BOS
SOUBOS
Southampton Eastleigh
Thu 10/7
09:20-16:30
1 stop12h 10m
Boston Logan Intl
Thu 17/7
22:20-17:50
2 stops14h 30m
SouthamptonBoston
SOU - BOS
SOUBOS
Southampton Eastleigh
Sat 26/7
16:25-20:25
3 stops33h 00m
Boston Logan Intl
Sat 2/8
20:50-15:00
2 stops13h 10m
SouthamptonBoston
SOU - BOS
SOUBOS
Southampton Eastleigh
Sun 27/7
09:10-14:40
1 stop10h 30m
SouthamptonBoston
SOU - BOS
SOUBOS
Southampton Eastleigh
Mon 14/7
18:25-16:30
1 stop27h 05m
Best time to book a flight from Portsmouth to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Portsmouth with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Portsmouth to Boston
What is the cheapest month to book a flight from Portsmouth to Boston?
Currently, October is the cheapest month in which you can book a flight from Portsmouth to Boston (average of £10). Flying from Portsmouth to Boston in July is currently the most expensive (average of £724). 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 BOS?
Find hourly flight availability from Portsmouth to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.
When flying from Portsmouth to Boston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
What is the cheapest day to fly from Portsmouth to Boston?
Use this chart to determine the cheapest time to fly return from Portsmouth to Boston. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Portsmouth to Boston flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Portsmouth to Boston
Explore weekly flight availability from Portsmouth to Boston. 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 13 June 2025.
The most flights from P0R to BOS are scheduled on a Monday (36 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (32 on average).
Rainfall in Boston by month
Plan your trip to Boston by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 inches per month. March is typically the wettest month, when rainfall can reach 101.0 mm. July is typically the driest time to visit Boston when rainfall is around 78.0 mm.
Temperature in Boston by month
Plan your trip to Boston by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Boston, 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).
Reviews of airlines servicing Boston
Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated 13 June 2025.
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Portsmouth to Boston. 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 Boston
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Portsmouth to Boston
Discover the top 10 airlines that operate flights from Portsmouth to Boston. 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 13 June 2025.
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How does Cheapflights help users find flights from Portsmouth to Boston?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Portsmouth to Boston. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Boston?
Cheapflights simply makes it quick and affordable to book flights from Portsmouth to Boston 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.
Can Cheapflights find flights from Portsmouth to Boston with no change fees?
Yes! Cheapflights helps users easily find flights from Portsmouth to Boston with no change fees.
Can Cheapflights notify me if prices for flights from Portsmouth to Boston become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Boston from Portsmouth today and book when prices fit your budget.