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Portsmouth

Cheap flights from Boston (BOS) to Portsmouth, England

BOS — LHR
Oct 26 — Nov 21
Mon 10/26
Mon 11/2
1 adult, Economy
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Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

January

Average price

$767
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. 18% potential increase in price ($161 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in September 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
1,789 reviews

Overall

7.3

Crew

8.1

Food

6.7

Entertainment

7.0

Boarding

7.4

Comfort

7.2

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
1,789 reviews
Aer Lingus
7.3
Good
1,789 reviews

Overall

7.3

Crew

8.1

Food

6.7

Entertainment

7.0

Boarding

7.4

Comfort

7.2

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 (95%), KLM (87%), SAUDIA( 87%).

  • What are the cheapest flights from Boston to Portsmouth?

    While on average a flight from Boston to Portsmouth is generally $2,253, our data shows the cheapest flight currently is $293. When looking at the most popular route, (Boston Logan Intl - Southampton Eastleigh), you can expect to pay $583 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$412Average$795FlexibilityNo cancel feeOn-time72%
IcelandairCheapest$429Average$663FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$449Average$797FlexibilityNo cancel feeOn-time62%
Aer LingusCheapest$463Average$817FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$466Average$716FlexibilityNo cancel feeOn-time76%
FinnairCheapest$479Average$702FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$479Average$750FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$481Average$718FlexibilityNo cancel feeOn-time77%
KLMCheapest$494Average$790FlexibilityNo cancel feeOn-time75%

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