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Portsmouth

Cheap flights from Baltimore (BWI) to Portsmouth, England

BWI — LHR
Nov 13 — Nov 201
Fri 11/13
Fri 11/20
1 adult, Economy
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Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

February

Average price

$867
Provider with most accurate pricing for Washington, D.C. (WAS)-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-London (LON) flights.
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Highest demand for flights based on searches. 17% potential increase in price ($182 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($33 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 Baltimore to Portsmouth

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

When flying from Baltimore 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.

Related info for your journey

  • What airport do you fly from for flights from Baltimore to Portsmouth?

    Baltimore/Washington (BWI), located 8.5 mi from the city center, is the airport you fly out of when you book flights from Baltimore to Portsmouth. 7 airlines have flights from Baltimore/Washington to Portsmouth on a regular basis. Booking flights from Baltimore/Washington to Portsmouth should not be difficult; the airport handles an average of 0 outbound flights to Portsmouth per day.

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

    Consider Finnair (85%), American Airlines (76%) or British Airways (76%) when booking your flight. These represent the most reliable airlines when flying from Baltimore to Portsmouth.

  • What are the cheapest flights from Baltimore to Portsmouth?

    The cheapest flight price from Baltimore to Portsmouth is $369. On average you can expect to pay $1,169. The most popular route, (Baltimore/Washington - Southampton Eastleigh), can usually be booked for $1,128.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Baltimore 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 7 airlines flying from Baltimore to Portsmouth

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$462Average$862FlexibilityNo cancel feeOn-time69%
IcelandairCheapest$465Average$767FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$589Average$979FlexibilityNo cancel feeOn-time70%
FinnairCheapest$591Average$827FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$624Average$981FlexibilityNo cancel feeOn-time71%
DeltaCheapest$646Average$867FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$650Average$966FlexibilityNo cancel feeOn-time77%

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