How long is the flight from Portsmouth to Baltimore?

A quick flight from Portsmouth to Baltimore can take about 18h 38m. Delta provides one of the quickest options available for as low as £739. The distance between Portsmouth and Baltimore is about 3597 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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 £411. While the most popular route (Southampton Eastleigh - Baltimore/Washington) can be booked for £498 on average, our data indicates £615 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.

£508+ Flights from Portsmouth to Baltimore

Find flight deals from Portsmouth to Baltimore

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 24 October 2025.

Sat 6/1209:25SOU - BWI

2 stops18h 38mVirgin Atlantic

Sat 13/1212:19BWI - SOU

2 stops15h 31mVirgin Atlantic

Deal found 22/10£739

Fri 5/1208:40SOU - BWI

2 stops18h 28mDelta

Fri 12/1210:28BWI - SOU

2 stops17h 22mDelta

Deal found 21/10£793

Sat 6/1217:30SOU - BWI

3 stops30h 10mMultiple Airlines

Sat 13/1206:30BWI - SOU

3 stops27h 15mMultiple Airlines

Deal found 22/10£963

Wed 22/1008:30SOU - BWI

2 stops16h 15mBritish Airways

Thu 23/1021:35BWI - SOU

2 stops13h 45mBritish Airways

Deal found 21/10£4,788

Best flights from Portsmouth to Baltimore
Discover carefully curated flight deals from Portsmouth to Baltimore that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 24 October 2025.

Wed 1/409:20SOU - BWI

2 stops30h 47mDelta

Sun 5/419:45BWI - SOU

2 stops40h 15mDelta

Deal found 22/10£508

Sat 6/1209:25SOU - BWI

2 stops18h 38mVirgin Atlantic

Sat 13/1212:19BWI - SOU

2 stops15h 31mVirgin Atlantic

Deal found 22/10£739

Sat 6/1217:30SOU - BWI

3 stops30h 10mMultiple Airlines

Sat 13/1206:30BWI - SOU

3 stops27h 15mMultiple Airlines

Deal found 22/10£963

Fri 5/1208:40SOU - BWI

2 stops18h 28mDelta

Fri 12/1210:28BWI - SOU

2 stops17h 22mDelta

Deal found 21/10£793

One-way flights from Portsmouth to Baltimore
Search for one-way flight options from Portsmouth to Baltimore. Find affordable one-way fares based on user searches. Data last updated 24 October 2025.

Mon 22/1220:50SOU - BWI

2 stops26h 55mBritish Airways

Deal found 21/10£934

Fri 31/1020:00SOU - BWI

2 stops27h 45mBritish Airways

Deal found 22/10£2,702

Tue 30/1219:55SOU - BWI

2 stops27h 50mBritish Airways

Deal found 21/10£2,706

Cheap flight deals from Portsmouth to Baltimore

Round-trip from	£505
Popular in	July
Cheapest in	February
Average price	£560

Delta
1/4-5/4
4 total stops
90h 27m total
Portsmouth to Baltimore

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£52 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 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

09:20-11:07

2 stops30h 47m

Baltimore/Washington

Sun 5/4

19:45-17:00

2 stops40h 15m

£508

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Sat 6/12

09:25-23:03

2 stops18h 38m

Baltimore/Washington

Sat 13/12

12:19-08:50

2 stops15h 31m

£739

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Fri 5/12

08:40-22:08

2 stops18h 28m

Baltimore/Washington

Fri 12/12

10:28-08:50

2 stops17h 22m

£793

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Sat 6/12

17:30-18:40

3 stops30h 10m

Baltimore/Washington

Sat 13/12

06:30-14:45

3 stops27h 15m

£963

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Mon 22/12

20:50-18:45

2 stops26h 55m

£934

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Fri 31/10

20:00-19:45

2 stops27h 45m

£2,702

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Tue 30/12

19:55-18:45

2 stops27h 50m

£2,706

Flights are sorted by cheapest return flights first.

Deals found on 21/10

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 £229). Flying from Portsmouth to Baltimore in July is currently the most expensive (average of £481). 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 18h 38m. Delta provides one of the quickest options available for as low as £739. The distance between Portsmouth and Baltimore is about 3597 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
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 £411. While the most popular route (Southampton Eastleigh - Baltimore/Washington) can be booked for £498 on average, our data indicates £615 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 £229). Flying from Portsmouth to Baltimore in July is currently the most expensive (average of £481). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Portsmouth to Baltimore

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Norwich to Reagan-National flights

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£269	Average£393	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Icelandair	Cheapest£357	Average£492	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
United Airlines	Cheapest£430	Average£460	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£451	Average£615	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£461	Average£631	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£463	Average£656	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Lufthansa	Cheapest£469	Average£630	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Finnair	Cheapest£480	Average£686	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
American Airlines	Cheapest£496	Average£696	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Iberia	Cheapest£513	Average£729	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?

Yes! Cheapflights helps users easily find flights from Portsmouth to Baltimore with no change fees.

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Not ready to book yet? You can track prices for flights from Portsmouth to Baltimore on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Portsmouth to Baltimore from £508

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/4. 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 24 October 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 24 October 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 24 October 2025.

Round-trip 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 24 October 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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?

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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 24 October 2025.