Cheap flights from Portsmouth to Baltimore

LHR — BWI
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Portsmouth to Baltimore

Popular in

June

Cheapest in

February

Average price

£501
Highest demand for flights based on searches. 9% potential increase in price (£40 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in October 2026

Cheapflights Insights

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

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Baltimore as you normally would.

Related info for your journey

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

    For a flight from Portsmouth to Baltimore, you will be flying into Baltimore/Washington. Baltimore/Washington (BWI) is just 8.5 mi from the center of the city. Baltimore/Washington is the only Baltimore airport and it handles 0 inbound flights from Portsmouth per day. 11 airlines have flights to Baltimore/Washington from Portsmouth on a regular basis.

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

    No one likes to see their flight delayed. When booking a flight from Portsmouth to Baltimore consider choosing American Airlines (55%), Aer Lingus (55%) or Finnair (55%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portsmouth to Baltimore?

    Looking at all options, your cheapest flight can be booked for £414. While the most popular route (Southampton Eastleigh - Baltimore/Washington) can be booked for £861 on average, our data indicates £554 when flying from Portsmouth to Baltimore.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Baltimore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Alternative routes for Portsmouth to Baltimore

Top 10 airlines flying from Portsmouth to Baltimore

AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£323Average£517FlexibilityNo cancel feeOn-time72%
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KLMCheapest£379Average£573FlexibilityNo cancel feeOn-time75%
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IcelandairCheapest£394Average£536FlexibilityNo cancel feeOn-time76%
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United AirlinesCheapest£410Average£539FlexibilityNo cancel feeOn-time69%
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LufthansaCheapest£423Average£526FlexibilityNo cancel feeOn-time76%
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DeltaCheapest£445Average£617FlexibilityNo cancel feeOn-timeN/A
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British AirwaysCheapest£469Average£628FlexibilityNo cancel feeOn-time70%
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IberiaCheapest£505Average£662FlexibilityNo cancel feeOn-time77%
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American AirlinesCheapest£515Average£750FlexibilityNo cancel feeOn-time71%
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FinnairCheapest£525Average£608FlexibilityNo cancel feeOn-time76%
Search Finnair flights

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Deals for Portsmouth to Baltimore flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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