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Portsmouth

Cheap flights from Boston (BOS) to Portsmouth, England

BOS — LHR
Nov 19 — Nov 261
Thu 11/19
Thu 11/26
1 adult, Economy
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Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Popular in

June

Cheapest in

January

Average price

$796
Provider with most accurate pricing for Boston Logan Intl-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-London (LON) flights.
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Highest demand for flights based on searches. 16% potential increase in price ($143 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Insights

Everything you need to know about your flight from Boston to Portsmouth

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

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.

Reviews of airlines servicing Portsmouth

See what other customers who have flown with Aer Lingus from Boston to Portsmouth have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,846 reviews

Food

6.7

Overall

7.3

Crew

8.1

Comfort

7.2

Entertainment

7.0

Boarding

7.5

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

BOS - SNN

Seats were very uncomfortable and mine was falling apart. My entertainment system didn’t work at all, just a black screen. It was hot in the plane, the airflow alternated between room temperature and warm. The food was gross.
Aer Lingus
7.3
Good
1,846 reviews
Aer Lingus
7.3
Good
1,846 reviews

Food

6.7

Overall

7.3

Crew

8.1

Comfort

7.2

Entertainment

7.0

Boarding

7.5

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

BOS - SNN

Seats were very uncomfortable and mine was falling apart. My entertainment system didn’t work at all, just a black screen. It was hot in the plane, the airflow alternated between room temperature and warm. The food was gross.

Related info for your journey

  • 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 16 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: Gulf Air (97%), KLM (88%), SAUDIA( 88%).

  • What are the cheapest flights from Boston to Portsmouth?

    While on average a flight from Boston to Portsmouth is generally $2,557, our data shows the cheapest flight currently is $291. When looking at the most popular route, (Boston Logan Intl - Southampton Eastleigh), you can expect to pay $720 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Boston to Portsmouth

AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$352Average$885FlexibilityNo cancel feeOn-time79%
Virgin AtlanticCheapest$406Average$816FlexibilityNo cancel feeOn-time72%
IcelandairCheapest$429Average$668FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$442Average$835FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$460Average$843FlexibilityNo cancel feeOn-time62%
LufthansaCheapest$466Average$734FlexibilityNo cancel feeOn-time76%
FinnairCheapest$479Average$712FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$481Average$724FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$497Average$764FlexibilityNo cancel feeOn-time67%
KLMCheapest$497Average$794FlexibilityNo cancel feeOn-time75%

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