How long is the flight from Portsmouth to Baltimore?

A quick flight from Portsmouth to Baltimore can take about 28h 55m. Delta provides one of the quickest options available for as low as £496. The distance between Portsmouth and Baltimore is about 3597 mi.

In terms of precipitation, rainfall in Baltimore ranges from 74.0 - 104.0 inches per month. July is typically the wettest month, when rainfall can reach 104.0 mm. February is typically the driest time to visit Baltimore when rainfall is around 74.0 mm.

If weather is an important factor for your trip to Baltimore, 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 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

What are the cheapest flights from Portsmouth to Baltimore?

Looking at all options, your cheapest flight can be booked for £430. While the most popular route (Southampton Eastleigh - Baltimore/Washington) can be booked for £499 on average, our data indicates £697 when flying from Portsmouth to Baltimore.

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 (49%), Aer Lingus (49%) or Finnair (49%) as they are the most reliable in getting you off to your destination on time.

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.

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.

£495+ Flights from Portsmouth to Baltimore

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Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Baltimore
Explore the most affordable flight options available from Portsmouth to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Mon 22/1218:05SOU - BWI

2 stops34h 26mVirgin Atlantic

Mon 29/1217:36BWI - SOU

2 stops33h 34mVirgin Atlantic

Deal found 7/11£643

Mon 22/1218:05SOU - BWI

3 stops29h 35mMultiple Airlines

Mon 29/1219:40BWI - SOU

2 stops14h 55mMultiple Airlines

Deal found 7/11£965

Last-minute flights from Portsmouth to Baltimore
Discover last-minute flight deals from Portsmouth to Baltimore. Data last updated 7 November 2025 and is based on user searches.

Mon 22/1218:05SOU - BWI

2 stops34h 26mVirgin Atlantic

Mon 29/1217:36BWI - SOU

2 stops33h 34mVirgin Atlantic

Deal found 7/11£643

Mon 22/1218:05SOU - BWI

3 stops29h 35mMultiple Airlines

Mon 29/1219:40BWI - SOU

2 stops14h 55mMultiple Airlines

Deal found 7/11£965

Cheap flight deals from Portsmouth to Baltimore

Round-trip from	£496
One-way from	£495
Popular in	July
Cheapest in	February
Average price	£513

Delta
1/4-5/4
4 total stops
69h 10m total
Portsmouth to Baltimore

Search Deals

19/4
3 total stops
36h 25m total
Portsmouth to Baltimore

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£54 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Wed 1/4

09:20-09:15

2 stops28h 55m

Baltimore/Washington

Sun 5/4

19:45-17:00

2 stops40h 15m

£496

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Sun 19/4

12:00-19:25

3 stops36h 25m

£495

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Best time to book a flight from Portsmouth to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from Portsmouth with our price prediction graph.

Estimated return 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 Portsmouth to Baltimore

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

Currently, February is the cheapest month in which you can book a flight from Portsmouth to Baltimore (average of £233). Flying from Portsmouth to Baltimore in July is currently the most expensive (average of £490). 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 P0R to BWI?

One of the essential ways to save on airfare from Portsmouth to Baltimore is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the evening could potentially save you up to 39% on airfare.

What is the cheapest day to fly from Portsmouth to Baltimore?

Travellers seeking maximum savings on their Portsmouth to Baltimore flight should consider departing on Sunday evenings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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.
How long is the flight from Portsmouth to Baltimore?
A quick flight from Portsmouth to Baltimore can take about 28h 55m. Delta provides one of the quickest options available for as low as £496. The distance between Portsmouth and Baltimore is about 3597 mi.
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 (49%), Aer Lingus (49%) or Finnair (49%) 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 £430. While the most popular route (Southampton Eastleigh - Baltimore/Washington) can be booked for £499 on average, our data indicates £697 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.
What is the cheapest month to book a flight from Portsmouth to Baltimore?
Currently, February is the cheapest month in which you can book a flight from Portsmouth to Baltimore (average of £233). Flying from Portsmouth to Baltimore in July is currently the most expensive (average of £490). 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.

See more FAQs

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Alternative routes for Portsmouth to Baltimore

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Complete your trip

Baltimore car hire

Washington, D.C. Dulles Intl Airport car hire

Baltimore/Washington Airport car hire

Washington, D.C. Reagan-National Airport car hire

Downtown car hire

Inner Harbor car hire

West Baltimore car hire

Fells Point car hire

Mount Vernon car hire

North Baltimore car hire

East Baltimore car hire

Canton car hire

Top 10 airlines flying from Portsmouth to Baltimore

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest£274	Average£403	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Icelandair	Cheapest£354	Average£503	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
United Airlines	Cheapest£438	Average£469	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£461	Average£603	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£471	Average£641	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£471	Average£668	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Lufthansa	Cheapest£478	Average£642	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Finnair	Cheapest£489	Average£692	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
American Airlines	Cheapest£505	Average£709	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Iberia	Cheapest£523	Average£741	FlexibilityNo cancel fee	On-time77%	Search Iberia 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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Millions of users choose and trust Cheapflights to book the best flight deals from Portsmouth to Baltimore for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Portsmouth to Baltimore with no change fees?

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Cheap flights from Portsmouth to Baltimore from £495

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 19/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find flight deals from Portsmouth to Baltimore

Cheapest flights from Portsmouth to BaltimoreExplore the most affordable flight options available from Portsmouth to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Explore the most affordable flight options available from Portsmouth to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Cheap flight deals from Portsmouth to Baltimore

Keep the following information in mind while searching for Portsmouth to Baltimore flight deals. Data was last updated 7 November 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to Baltimore that are best for you.

Best time to book a flight from Portsmouth to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from Portsmouth with our price prediction graph.

Cheapflights Insights

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

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

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

Find hourly flight availability from Portsmouth to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 November 2025.

What is the cheapest day to fly from Portsmouth to Baltimore?

Use this chart to determine the cheapest time to fly return from Portsmouth to Baltimore. Price data was last updated on 16 December 2024.

Related info for your journey

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

How long is the flight from Portsmouth to Baltimore?

What are the most reliable airlines from Portsmouth to Baltimore?

What are the cheapest flights from Portsmouth to Baltimore?

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

How can I find direct flights from Portsmouth to Baltimore?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portsmouth to Baltimore

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Portsmouth to Baltimore

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How does Cheapflights help users find flights from Portsmouth to Baltimore?

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Baltimore?

Can Cheapflights find flights from Portsmouth to Baltimore with no change fees?

Can Cheapflights notify me if prices for flights from Portsmouth to Baltimore become cheaper?

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Cheapest flights from Portsmouth to Baltimore
Explore the most affordable flight options available from Portsmouth to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.