Question 1

What is the cheapest month to book a flight from Portsmouth to Boston?

Accepted Answer

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.

Question 2

What is the cheapest day to fly from Portsmouth to Boston?

Accepted Answer

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.

Question 3

Weekly flight availability from Portsmouth to Boston

Accepted Answer

The most flights from P0R to BOS are scheduled on a Tuesday (36 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (28 on average).

Question 4

E

Accepted Answer

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.

Question 5

E

Accepted Answer

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).

Question 6

What are the cheapest flights from Portsmouth to Boston?

Accepted Answer

The cheapest flight price from Portsmouth to Boston is £351. On average you can expect to pay £1,453. The most popular route, (Southampton Eastleigh - Boston Logan Intl), can usually be booked for £653.

Question 7

What are the most reliable airlines from Portsmouth to Boston?

Accepted Answer

The top 3 most reliable airlines when flying from Portsmouth to Boston are KLM (92%), Air France (92%) and Delta (92%).

Question 8

What are the most popular airlines that fly from Portsmouth to Boston?

Accepted Answer

Consider American Airlines, Air Canada or Air France when booking your flight. These represent the most popular airlines when flying from Portsmouth to Boston.

Question 9

How far in advance should I book a flight from Portsmouth to Boston?

Accepted Answer

Find a great deal and save up to 34% by booking at least 11 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Portsmouth to Boston within the next two weeks, with the cheapest ticket starting at £397.

Question 10

What is the cheapest month to fly from Portsmouth to Boston?

Accepted Answer

September is one of the best times of the year to fly to Boston from Portsmouth. Prices for September average £450 per person but you can even find prices for as low as £282. The most expensive prices can be found in the month of August. Opting for a September flight can save you 27% on your journey compared to booking in August

Question 11

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

Accepted Answer

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.

Question 12

What airport do you fly into for flights to Boston from Portsmouth?

Accepted Answer

Most people fly into Boston Logan Intl (BOS) if they book a flight to Boston from Portsmouth. On average, Logan Intl has 0 inbound flights from Portsmouth per day from 17 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

Question 13

Can I find deals for flights from Portsmouth to Boston that include hotel bookings?

Accepted Answer

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

Question 14

How can I find direct flights from Portsmouth to Boston?

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 Boston.

Question 15

Can I find deals for business class flights from Portsmouth to Boston?

Accepted Answer

Yes. Cheapflights offers flight deals from Portsmouth to Boston 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 Boston?

Accepted Answer

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.

Question 17

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Boston?

Accepted Answer

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.

Question 18

Can Cheapflights find flights from Portsmouth to Boston with no change fees?

Accepted Answer

Yes! Cheapflights helps users easily find flights from Portsmouth to Boston with no change fees.

Question 19

Can Cheapflights notify me if prices for flights from Portsmouth to Boston 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 Boston from Portsmouth today and book when prices fit your budget.

Round-trip from	£545
Popular in	August
Cheapest in	September
Average price	£541

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest£7	Average£261	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
PLAY	Cheapest£256	Average£343	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
TAP AIR PORTUGAL	Cheapest£276	Average£469	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Icelandair	Cheapest£298	Average£429	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Scandinavian Airlines	Cheapest£301	Average£482	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Lufthansa	Cheapest£305	Average£423	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Air France	Cheapest£330	Average£417	FlexibilityNo cancel fee	On-time77%	Search Air France flights
KLM	Cheapest£331	Average£398	FlexibilityNo cancel fee	On-time75%	Search KLM flights
United Airlines	Cheapest£332	Average£398	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£332	Average£440	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

Cheap flights from Portsmouth to Boston from £545

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/12. 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 2 July 2025.

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Popular in

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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 2 July 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 2 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to Boston that are best for you.

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?

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 2 July 2025.

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.

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 2 July 2025.

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 2 July 2025.

Read through reviews of airlines operating flights from Portsmouth to Boston, such as Delta, KLM, andVirgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.

What airport do you fly into for flights to Boston from Portsmouth?

What are the most reliable airlines from Portsmouth to Boston?

What are the cheapest flights from Portsmouth to Boston?

Can I find deals for flights from Portsmouth to Boston that include hotel bookings?

How can I find direct flights from Portsmouth to Boston?

Can I find deals for business class flights from Portsmouth to Boston?

What is the cheapest month to book a flight from Portsmouth to Boston?

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Alternative routes for Portsmouth to Boston

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Top 10 airlines flying from Portsmouth to Boston

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How does Cheapflights help users find flights from Portsmouth to Boston?

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Boston?

Can Cheapflights find flights from Portsmouth to Boston with no change fees?

Can Cheapflights notify me if prices for flights from Portsmouth to Boston become cheaper?

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Cheapest flights from Portsmouth to Boston
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 2 July 2025.