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Portsmouth

$309+ Cheap flights from Boston (BOS) to Portsmouth, England

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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LHR
juin 17 — juin 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Boston to Portsmouth

Keep the following information in mind while searching for Boston to Portsmouth flight deals. Data was last updated juin 12, 2025.

Round-trip from

$662
(Delta)

One-way from

$309
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$1,185
From Boston Logan Intl to Portsmouth
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One-way flight from Boston Logan Intl to Portsmouth
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Highest demand for flights based on searches. 15% potential increase in price ($176 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Boston to Portsmouth

Cheapest flights from Boston to Portsmouth
Explore the most affordable flight options available from Boston to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juin 12, 2025.

This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/68:15 pmBOS - SOU
1 stop16h 35mDelta
mer. 8/209:20 amSOU - BOS
1 stop14h 05mDelta
Deal found 6/12$662
This KLM deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 8/76:45 pmBOS - SOU
1 stop9h 00mKLM
lun. 8/186:25 pmSOU - BOS
1 stop29h 00mKLM
Deal found 6/12$712
This Booking.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 7/258:15 pmBOS - SOU
1 stop31h 30mVirgin Atlantic
ven. 8/19:20 amSOU - BOS
1 stop14h 05mVirgin Atlantic
Deal found 6/10$720
This Bravofly deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 7/259:40 pmBOS - SOU
2 stops30h 05mMultiple Airlines
ven. 8/16:25 pmSOU - BOS
2 stops26h 45mMultiple Airlines
Deal found 6/10$796
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 7/2711:15 amBOS - SOU
2 stops16h 55mAer Lingus
dim. 8/38:00 pmSOU - BOS
1 stop23h 40mAer Lingus
Deal found 6/10$932
This British Airways deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/133:57 pmBOS - SOU
2 stops15h 03mBritish Airways
mer. 8/209:10 amSOU - BOS
1 stop14h 35mBritish Airways
Deal found 6/10$1,348

Cheapflights Fare Finder

Customize your flight search to find flights from Boston to Portsmouth 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 2,558,603 searches. Data last updated juin 12, 2025.
Use the filters below to find and compare flights from Boston to Portsmouth that are best for you.

Fly from

Boston

Fly to

Portsmouth

Route

Depart

Return

Price

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

mer. 8/6

8:15 pm-5:50 pm

1 stop16h 35m

Southampton Eastleigh

mer. 8/20

9:20 am-6:25 pm

1 stop14h 05m

$662

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

jeu. 8/7

6:45 pm-8:45 am

1 stop9h 00m

Southampton Eastleigh

lun. 8/18

6:25 pm-6:25 pm

1 stop29h 00m

$712

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

ven. 7/25

8:15 pm-8:45 am

1 stop31h 30m

Southampton Eastleigh

ven. 8/1

9:20 am-6:25 pm

1 stop14h 05m

$720

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

ven. 7/25

9:40 pm-8:45 am

2 stops30h 05m

Southampton Eastleigh

ven. 8/1

6:25 pm-4:10 pm

2 stops26h 45m

$796

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

dim. 7/27

11:15 am-9:10 am

2 stops16h 55m

Southampton Eastleigh

dim. 8/3

8:00 pm-2:40 pm

1 stop23h 40m

$932

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

mer. 8/13

3:57 pm-12:00 pm

2 stops15h 03m

Southampton Eastleigh

mer. 8/20

9:10 am-6:45 pm

1 stop14h 35m

$1,348

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

sam. 7/26

8:50 pm-8:40 am

3 stops54h 50m

$309

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

lun. 8/4

5:30 pm-8:40 am

1 stop10h 10m

$431

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

sam. 7/26

6:40 pm-5:00 pm

1 stop17h 20m

$433

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Boston to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Boston with our price prediction graph.
Estimated round-trip 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 Boston to Portsmouth

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

Currently, November is the cheapest month in which you can book a flight from Boston to Portsmouth (average of $661). Flying from Boston to Portsmouth in June is currently the most expensive (average of $1,108). 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 BOS to P0R?

Find hourly flight availability from Boston to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated juin 12, 2025.

When flying from Boston to Portsmouth, 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 Boston to Portsmouth?

Use this chart to determine the cheapest time to fly round-trip from Boston to Portsmouth. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Portsmouth flight should consider departing on Friday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boston to Portsmouth

Explore weekly flight availability from Boston to Portsmouth. 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 juin 12, 2025.

The most flights from BOS to P0R are scheduled on a Tuesday (36 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (27 on average).

Rainfall in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portsmouth ranges from 1.0 - 3.0 inches per month. December is typically the wettest month, when rainfall can reach 3.0 in. July is typically the driest time to visit Portsmouth when rainfall is around 1.0 in.

Temperature in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portsmouth, 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 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Portsmouth

Get insights into the airlines that provide service to Portsmouth. 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 Portsmouth. Reviews last updated juin 12, 2025.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.1
Good
1,117 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.6
Okay
7,008 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Boston to Portsmouth. 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 from for flights from Boston to Portsmouth?

    If you book a flight to Portsmouth from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 0 flights from Logan Intl to Portsmouth per day from 19 different airlines.

  • What are the most reliable airlines from Boston to Portsmouth?

    Before booking your flight to Portsmouth from Boston, check out the most reliable airlines to get you to your destination on time: KLM (89%), Delta (89%), Virgin Atlantic( 89%).

  • What are the cheapest flights from Boston to Portsmouth?

    While on average a flight from Boston to Portsmouth is generally $3,210, our data shows the cheapest flight currently is $263. When looking at the most popular route, (Boston Logan Intl - Southampton Eastleigh), you can expect to pay $663 for that flight.

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

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

  • How can I find direct flights from Boston to Portsmouth?

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Boston to Portsmouth (average of $661). Flying from Boston to Portsmouth in June is currently the most expensive (average of $1,108). 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.

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Alternative routes for Boston to Portsmouth

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Boston to Portsmouth

Discover the top 10 airlines that operate flights from Boston to Portsmouth. 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 2,558,603 searches. Data last updated juin 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$290Average$749FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$325Average$507FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$328Average$660FlexibilityNo cancel feeOn-time76%
PLAYCheapest$356Average$483FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$384Average$660FlexibilityNo cancel feeOn-time72%
KLMCheapest$387Average$804FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$390Average$604FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$391Average$659FlexibilityNo cancel feeOn-time70%
JetBlueCheapest$395Average$701FlexibilityNo cancel feeOn-time62%
DeltaCheapest$398Average$851FlexibilityNo cancel feeOn-timeN/A

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