How long is the flight from Portsmouth to Baltimore?

A quick flight from Portsmouth to Baltimore can take about 18h 12m. Delta provides one of the quickest options available for as low as £481. 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 £396. While the most popular route (Southampton Eastleigh - Baltimore/Washington) can be booked for £481 on average, our data indicates £750 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 Iberia (52%), American Airlines (50%) or Finnair (47%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Portsmouth to Baltimore?

Before booking your flight from Portsmouth to Baltimore check out the most popular airlines for this route: American Airlines, Finnair or British Airways.

How far in advance should I book a flight from Portsmouth to Baltimore?

To save up to 26% on this flight, we recommend booking at least 60 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portsmouth to Baltimore from £525 1-2 weeks out and tickets from £776 for flights departing within the next 72 hours.

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

Flights from Portsmouth to Baltimore lean towards being more expensive in July. Prices are generally better when you fly from Portsmouth to Baltimore in February, with the cheapest ticket starting at £224.

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.

£360+ Flights from Portsmouth to Baltimore

Cheap flight deals from Portsmouth to Baltimore

Round-trip from	£481
One-way from	£360
Popular in	July
Cheapest in	February
Average price	£490

KLM
13/10-20/10
4 total stops
43h 04m total
Portsmouth to Baltimore

Search Deals

15/11
3 total stops
42h 24m total
Portsmouth to Baltimore

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£49 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Portsmouth to Baltimore

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 16 September 2025.

Mon 13/1017:35SOU - BWI

2 stops28h 19mKLM

Mon 20/1013:00BWI - SOU

2 stops14h 45mKLM

Deal found 15/9£481

Thu 30/1018:05SOU - BWI

3 stops29h 35mMultiple Airlines

Thu 6/1119:40BWI - SOU

2 stops19h 00mMultiple Airlines

Deal found 15/9£611

Mon 13/1008:05SOU - BWI

3 stops38h 35mMultiple Airlines

Mon 20/1018:50BWI - SOU

3 stops32h 55mMultiple Airlines

Deal found 15/9£797

Tue 16/908:40SOU - BWI

2 stops16h 05mBritish Airways

Mon 6/1021:35BWI - SOU

2 stops13h 45mBritish Airways

Deal found 15/9£1,433

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 16 September 2025.

Thu 30/1008:50SOU - BWI

2 stops18h 12mDelta

Thu 6/1118:22BWI - SOU

2 stops17h 38mDelta

Deal found 15/9£481

Mon 13/1017:35SOU - BWI

2 stops28h 19mKLM

Mon 20/1013:00BWI - SOU

2 stops14h 45mKLM

Deal found 15/9£481

Thu 30/1018:05SOU - BWI

3 stops29h 35mMultiple Airlines

Thu 6/1119:40BWI - SOU

2 stops19h 00mMultiple Airlines

Deal found 15/9£611

Mon 13/1008:05SOU - BWI

3 stops38h 35mMultiple Airlines

Mon 20/1018:50BWI - SOU

3 stops32h 55mMultiple Airlines

Deal found 15/9£797

Last-minute flights from Portsmouth to Baltimore
Discover last-minute flight deals from Portsmouth to Baltimore. Data last updated 16 September 2025 and is based on user searches.

Tue 16/908:40SOU - BWI

2 stops16h 05mBritish Airways

Mon 6/1021:35BWI - SOU

2 stops13h 45mBritish Airways

Deal found 15/9£1,433

Mon 13/1017:35SOU - BWI

2 stops28h 19mKLM

Mon 20/1013:00BWI - SOU

2 stops14h 45mKLM

Deal found 15/9£481

Mon 13/1008:05SOU - BWI

3 stops38h 35mMultiple Airlines

Mon 20/1018:50BWI - SOU

3 stops32h 55mMultiple Airlines

Deal found 15/9£797

Thu 30/1018:05SOU - BWI

3 stops29h 35mMultiple Airlines

Thu 6/1119:40BWI - SOU

2 stops19h 00mMultiple Airlines

Deal found 15/9£611

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 16 September 2025.

Sat 15/1109:30SOU - BWI

3 stops42h 24mMultiple Airlines

Deal found 15/9£360

Thu 30/1020:10SOU - BWI

2 stops27h 35mAer Lingus

Deal found 15/9£622

Thu 30/1014:45SOU - BWI

3 stops33h 00mBritish Airways

Deal found 15/9£720

Mon 19/120:30SOU - BWI

2 stops27h 15mBritish Airways

Deal found 14/9£1,049

Thu 23/1019:55SOU - BWI

2 stops28h 50mBritish Airways

Deal found 15/9£2,677

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

Thu 30/10

08:50-23:02

2 stops18h 12m

Baltimore/Washington

Thu 6/11

18:22-17:00

2 stops17h 38m

£481

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Mon 13/10

17:35-16:54

2 stops28h 19m

Baltimore/Washington

Mon 20/10

13:00-08:45

2 stops14h 45m

£481

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Thu 30/10

18:05-19:40

3 stops29h 35m

Baltimore/Washington

Thu 6/11

19:40-19:40

2 stops19h 00m

£611

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Mon 13/10

08:05-17:40

3 stops38h 35m

Baltimore/Washington

Mon 20/10

18:50-08:45

3 stops32h 55m

£797

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Sat 15/11

09:30-22:54

3 stops42h 24m

£360

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Thu 30/10

20:10-19:45

2 stops27h 35m

£622

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Thu 30/10

14:45-19:45

3 stops33h 00m

£720

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Mon 19/1

20:30-18:45

2 stops27h 15m

£1,049

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Tue 20/1

20:30-18:45

2 stops27h 15m

£1,049

SouthamptonBaltimore

SOU - BWI

SOUBWI

Southampton Eastleigh

Wed 19/11

19:55-18:45

2 stops27h 50m

£2,677

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 12 results

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 £565). Flying from Portsmouth to Baltimore in July is currently the most expensive (average of £946). 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?

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.

Weekly flight availability from Portsmouth to Baltimore

The most flights from P0R to BWI are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

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 12m. Delta provides one of the quickest options available for as low as £481. 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 Iberia (52%), American Airlines (50%) or Finnair (47%) 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 £396. While the most popular route (Southampton Eastleigh - Baltimore/Washington) can be booked for £481 on average, our data indicates £750 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 £565). Flying from Portsmouth to Baltimore in July is currently the most expensive (average of £946). 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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Newquay to Philadelphia flights

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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£268	Average£387	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Icelandair	Cheapest£350	Average£495	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
United Airlines	Cheapest£394	Average£565	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
American Airlines	Cheapest£452	Average£650	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Finnair	Cheapest£459	Average£653	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Lufthansa	Cheapest£460	Average£619	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
British Airways	Cheapest£461	Average£615	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Iberia	Cheapest£503	Average£672	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Virgin Atlantic	Cheapest£523	Average£651	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
KLM	Cheapest£524	Average£711	FlexibilityNo cancel fee	On-time75%	Search KLM flights

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

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.

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

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.

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

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 £360

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.

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 16 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 16 September 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 16 September 2025.

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 16 September 2025.

Weekly flight availability from Portsmouth to Baltimore

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?

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 16 September 2025.