How long is the flight from Portsmouth to Los Angeles?

Delta, Aer Lingus, and British Airways can get you from Portsmouth to Los Angeles in just under 17h. Your travel time can differ by up to 3h 50m. The distance from Portsmouth to Los Angeles is about 5434 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Los Angeles ranges from 0.0 - 87.0 inches per month. February is typically the wettest month, when rainfall can reach 87.0 mm. July is typically the driest time to visit Los Angeles when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Los Angeles, 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

What are the cheapest flights from Portsmouth to Los Angeles?

Looking at all options, your cheapest flight can be booked for £355. While the most popular route (Southampton Eastleigh - Los Angeles) can be booked for £478 on average, our data indicates £2,662 when flying from Portsmouth to Los Angeles.

What are the most reliable airlines from Portsmouth to Los Angeles?

No one likes to see their flight delayed. When booking a flight from Portsmouth to Los Angeles consider choosing SriLankan Airlines (89%), Aeromexico (86%) or KLM (86%) 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 Los Angeles?

The most popular airlines flying from Portsmouth to Los Angeles are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

What airport do you fly into for flights to Los Angeles from Portsmouth?

Los Angeles (LAX) is the airport you will fly into if you book a flight from Portsmouth to Los Angeles. You should not have trouble finding flights to Los Angeles from Portsmouth; the airport handles an average of 0 inbound flights from Portsmouth per day. You should also have plenty of airline options to choose from since 23 airlines have flights to the Los Angeles airport from Portsmouth. It is only a 9.4 mi journey from Los Angeles (LAX) to Los Angeles’s city center.

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

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

How can I find direct flights from Portsmouth to Los Angeles?

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

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

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

£402+ Cheap Flights from Portsmouth to Los Angeles

Q: How much does it cost for a return flight from Portsmouth to Los Angeles?

Airfare is typical for this route at the moment. Portsmouth to Los Angeles flights typically cost between £470 and £866 in November. The cheapest return flight price found within the last 3 days was £478 on Delta (1 Nov-8 Nov).

Cheap flight deals from Portsmouth to Los Angeles

Round-trip from	£478
One-way from	£402
Popular in	July
Cheapest in	February
Average price	£844

Delta
1/11-8/11
4 total stops
39h 40m total
Portsmouth to Los Angeles

Search Deals

Aer Lingus
28/11
1 total stop
17h 00m total
Portsmouth to Los Angeles

Search Deals

Highest demand for flights based on searches. 21% potential increase in price (£147 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£26 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Portsmouth to Los Angeles

Cheapest flights from Portsmouth to Los Angeles
Explore the most affordable flight options available from Portsmouth to Los Angeles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Sat 1/1109:25SOU - LAX

2 stops20h 50mDelta

Sat 8/1106:00LAX - SOU

2 stops18h 50mDelta

Deal found 17/9£478

Sat 1/1109:30SOU - LAX

1 stop17h 00mAer Lingus

Sat 8/1120:15LAX - SOU

1 stop15h 25mAer Lingus

Deal found 17/9£521

Sat 8/1109:30SOU - LAX

1 stop17h 00mBritish Airways

Sun 9/1120:15LAX - SOU

1 stop15h 25mBritish Airways

Deal found 16/9£570

Sat 1/1109:30SOU - LAX

1 stop17h 00mMultiple Airlines

Sat 8/1106:00LAX - SOU

2 stops29h 40mMultiple Airlines

Deal found 17/9£579

Sat 4/1009:20SOU - LAX

2 stops19h 00mDelta

Wed 8/1006:00LAX - SOU

2 stops18h 45mDelta

Deal found 18/9£661

Sat 4/1009:40SOU - LAX

1 stop16h 45mMultiple Airlines

Wed 8/1020:15LAX - SOU

1 stop28h 25mMultiple Airlines

Deal found 18/9£665

Thu 9/1009:40SOU - LAX

1 stop16h 45mBritish Airways

Mon 13/1017:05LAX - SOU

2 stops18h 20mBritish Airways

Deal found 16/9£699

Wed 1/1009:10SOU - LAX

1 stop17h 15mBritish Airways

Wed 8/1020:15LAX - SOU

1 stop15h 15mBritish Airways

Deal found 17/9£775

Fri 24/1009:40SOU - LAX

1 stop16h 45mAer Lingus

Fri 31/1022:00LAX - SOU

2 stops27h 45mAer Lingus

Deal found 16/9£893

Mon 29/919:55SOU - LAX

2 stops25h 30mBritish Airways

Mon 6/1020:15LAX - SOU

1 stop15h 15mBritish Airways

Deal found 16/9£898

Best flights from Portsmouth to Los Angeles
Discover carefully curated flight deals from Portsmouth to Los Angeles that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Sat 1/1109:25SOU - LAX

2 stops20h 50mDelta

Sat 8/1106:00LAX - SOU

2 stops18h 50mDelta

Deal found 17/9£478

Sat 1/1109:30SOU - LAX

1 stop17h 00mAer Lingus

Sat 8/1120:15LAX - SOU

1 stop15h 25mAer Lingus

Deal found 17/9£521

Sat 8/1109:30SOU - LAX

1 stop17h 00mBritish Airways

Sun 9/1120:15LAX - SOU

1 stop15h 25mBritish Airways

Deal found 16/9£570

Sat 1/1109:30SOU - LAX

1 stop17h 00mMultiple Airlines

Sat 8/1106:00LAX - SOU

2 stops29h 40mMultiple Airlines

Deal found 17/9£579

Sat 4/1009:20SOU - LAX

2 stops19h 00mDelta

Wed 8/1016:50LAX - SOU

1 stop31h 55mDelta

Deal found 18/9£661

Sat 1/1109:45SOU - LAX

2 stops16h 45mBritish Airways

Sat 8/1120:15LAX - SOU

3 stops37h 20mBritish Airways

Deal found 17/9£665

Sat 4/1009:40SOU - LAX

1 stop16h 45mMultiple Airlines

Wed 8/1020:15LAX - SOU

1 stop28h 25mMultiple Airlines

Deal found 18/9£665

Wed 1/1009:10SOU - LAX

1 stop17h 15mBritish Airways

Wed 8/1020:15LAX - SOU

1 stop15h 15mBritish Airways

Deal found 17/9£775

Fri 24/1020:00SOU - LAX

2 stops26h 55mAer Lingus

Fri 31/1022:00LAX - SOU

2 stops27h 45mAer Lingus

Deal found 16/9£900

Mon 29/919:55SOU - LAX

2 stops25h 30mBritish Airways

Mon 6/1020:15LAX - SOU

1 stop15h 15mBritish Airways

Deal found 16/9£898

Last-minute flights from Portsmouth to Los Angeles
Discover last-minute flight deals from Portsmouth to Los Angeles. Data last updated 18 September 2025 and is based on user searches.

Mon 29/919:55SOU - LAX

2 stops25h 30mBritish Airways

Mon 6/1020:15LAX - SOU

1 stop15h 15mBritish Airways

Deal found 16/9£898

Wed 1/1009:10SOU - LAX

1 stop17h 15mBritish Airways

Wed 8/1020:15LAX - SOU

1 stop15h 15mBritish Airways

Deal found 17/9£775

Sat 4/1009:20SOU - LAX

2 stops19h 00mDelta

Wed 8/1006:00LAX - SOU

2 stops18h 45mDelta

Deal found 18/9£661

Sat 4/1009:40SOU - LAX

1 stop16h 45mMultiple Airlines

Wed 8/1020:15LAX - SOU

1 stop28h 25mMultiple Airlines

Deal found 18/9£665

Thu 9/1009:40SOU - LAX

1 stop16h 45mBritish Airways

Mon 13/1017:05LAX - SOU

2 stops18h 20mBritish Airways

Deal found 16/9£699

Fri 24/1009:40SOU - LAX

1 stop16h 45mAer Lingus

Fri 31/1022:00LAX - SOU

2 stops27h 45mAer Lingus

Deal found 16/9£893

One-way flights from Portsmouth to Los Angeles
Search for one-way flight options from Portsmouth to Los Angeles. Find affordable one-way fares based on user searches. Data last updated 18 September 2025.

Fri 28/1109:30SOU - LAX

1 stop17h 00mAer Lingus

Deal found 17/9£402

Mon 1/1209:30SOU - LAX

1 stop17h 00mBritish Airways

Deal found 17/9£440

Thu 5/309:30SOU - LAX

1 stop17h 00mBritish Airways

Deal found 16/9£509

Wed 29/1012:25SOU - LAX

1 stop14h 05mBritish Airways

Deal found 16/9£530

Tue 28/1020:10SOU - LAX

1 stop30h 20mBritish Airways

Deal found 16/9£536

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sat 1/11

09:25-23:15

2 stops20h 50m

Los Angeles

Sat 8/11

06:00-08:50

2 stops18h 50m

£478

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sat 1/11

09:30-19:30

1 stop17h 00m

Los Angeles

Sat 8/11

20:15-19:40

1 stop15h 25m

£521

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sat 8/11

09:30-18:30

1 stop17h 00m

Los Angeles

Sun 9/11

20:15-19:40

1 stop15h 25m

£570

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sat 1/11

09:30-19:30

1 stop17h 00m

Los Angeles

Sat 8/11

06:00-19:40

2 stops29h 40m

£579

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sat 4/10

09:20-20:20

2 stops19h 00m

Los Angeles

Wed 8/10

16:50-08:45

1 stop31h 55m

£661

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sat 1/11

09:45-19:30

2 stops16h 45m

Los Angeles

Sat 8/11

20:15-17:35

3 stops37h 20m

£665

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sat 4/10

09:40-18:25

1 stop16h 45m

Los Angeles

Wed 8/10

20:15-08:40

1 stop28h 25m

£665

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 1/10

09:10-18:25

1 stop17h 15m

Los Angeles

Wed 8/10

20:15-19:30

1 stop15h 15m

£775

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Mon 29/9

19:55-13:25

2 stops25h 30m

Los Angeles

Mon 6/10

20:15-19:30

1 stop15h 15m

£898

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Fri 24/10

20:00-14:55

2 stops26h 55m

Los Angeles

Fri 31/10

22:00-08:45

2 stops27h 45m

£900

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 16 results

Best time to book a flight from Portsmouth to Los Angeles

Have a flexible travel schedule? Discover the best time to fly to Los Angeles 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 Los Angeles

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

Currently, September is the cheapest month in which you can book a flight from Portsmouth to Los Angeles (average of £573). Flying from Portsmouth to Los Angeles in July is currently the most expensive (average of £811). 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 LAX?

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

What is the cheapest day to fly from Portsmouth to Los Angeles?

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

Weekly flight availability from Portsmouth to Los Angeles

The most flights from P0R to LAX are scheduled on a Monday (53 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (47 on average).

How much does it cost for a return flight from Portsmouth to Los Angeles?

Reviews of airlines servicing Los Angeles

Read reviews from past customers who have flown with British Airways from Portsmouth to Los Angeles. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

British Airways

6.7

Okay

7,367 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

British Airways

6.7

Okay

7,367 reviews

British Airways

6.7

Okay

7,367 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

What airport do you fly into for flights to Los Angeles from Portsmouth?
Los Angeles (LAX) is the airport you will fly into if you book a flight from Portsmouth to Los Angeles. You should not have trouble finding flights to Los Angeles from Portsmouth; the airport handles an average of 0 inbound flights from Portsmouth per day. You should also have plenty of airline options to choose from since 23 airlines have flights to the Los Angeles airport from Portsmouth. It is only a 9.4 mi journey from Los Angeles (LAX) to Los Angeles’s city center.
How long is the flight from Portsmouth to Los Angeles?
Delta, Aer Lingus, and British Airways can get you from Portsmouth to Los Angeles in just under 17h. Your travel time can differ by up to 3h 50m. The distance from Portsmouth to Los Angeles is about 5434 mi. This flight may include one or multiple stops.
What are the most reliable airlines from Portsmouth to Los Angeles?
No one likes to see their flight delayed. When booking a flight from Portsmouth to Los Angeles consider choosing SriLankan Airlines (89%), Aeromexico (86%) or KLM (86%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Portsmouth to Los Angeles?
Looking at all options, your cheapest flight can be booked for £355. While the most popular route (Southampton Eastleigh - Los Angeles) can be booked for £478 on average, our data indicates £2,662 when flying from Portsmouth to Los Angeles.
Can I find deals for flights from Portsmouth to Los Angeles that include hotel bookings?
Yes. In addition to deals on Portsmouth to Los Angeles flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portsmouth to Los Angeles?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Los Angeles.
Can I find deals for business class flights from Portsmouth to Los Angeles?
Yes. Cheapflights offers flight deals from Portsmouth to Los Angeles 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 Los Angeles?
Currently, September is the cheapest month in which you can book a flight from Portsmouth to Los Angeles (average of £573). Flying from Portsmouth to Los Angeles in July is currently the most expensive (average of £811). 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

West Hollywood

Laguna Hills

Glendale

Woodland Hills

Torrance

Chino Hills

Artesia

La Puente

Cerritos

Simi Valley

Aliso Viejo

Dana Point

Calabasas

Inglewood

Vista

El Segundo

Culver City

Garden Grove

Thousand Oaks

Camarillo

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Portsmouth to Los Angeles

Heathrow to Los Angeles flights

Heathrow to San Francisco flights

Heathrow to Las Vegas flights

London City to Los Angeles flights

Gatwick to San Francisco flights

London City to San Francisco flights

Gatwick to Los Angeles flights

Gatwick to Las Vegas flights

Heathrow to San Diego flights

Heathrow to Ontario flights

Heathrow to Santa Ana flights

Stansted to Los Angeles flights

Luton to Los Angeles flights

London City to Las Vegas flights

Heathrow to Burbank flights

Heathrow to San Jose flights

Heathrow to Long Beach flights

Stansted to San Francisco flights

Heathrow to Oakland flights

Luton to San Francisco flights

Gatwick to San Jose flights

Manchester to Las Vegas flights

Gatwick to Oakland flights

Manchester to Los Angeles flights

Manchester to San Francisco flights

Gatwick to Burbank flights

Luton to Las Vegas flights

Gatwick to San Diego flights

Stansted to Las Vegas flights

Gatwick to Santa Ana flights

Manchester to Santa Ana flights

London City to San Diego flights

Manchester to Ontario flights

Edinburgh to San Francisco flights

Manchester to Burbank flights

Heathrow to Sacramento flights

London City to Oakland flights

London City to Burbank flights

Manchester to San Jose flights

Manchester to Oakland flights

Edinburgh to Los Angeles flights

Manchester to San Diego flights

Southend to San Francisco flights

Newcastle upon Tyne to Los Angeles flights

Gatwick to Sacramento flights

Edinburgh to Las Vegas flights

Edinburgh to San Diego flights

Gatwick to Ontario flights

Heathrow to Palm Springs flights

Leeds to Las Vegas flights

Other flights to Los Angeles

Top 10 airlines flying from Portsmouth to Los Angeles

Airline	Cheapest	Average	Flexibility	On-time
SWISS	Cheapest£287	Average£453	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Norse Atlantic UK	Cheapest£289	Average£522	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
Aer Lingus	Cheapest£329	Average£550	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Delta	Cheapest£331	Average£541	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Scandinavian Airlines	Cheapest£341	Average£478	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Air France	Cheapest£349	Average£457	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Brussels Airlines	Cheapest£351	Average£464	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Austrian Airlines	Cheapest£352	Average£466	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
United Airlines	Cheapest£355	Average£471	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
KLM	Cheapest£355	Average£525	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

How does Cheapflights help users find flights from Portsmouth to Los Angeles?

Deals for Portsmouth to Los Angeles 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 Los Angeles?

Millions of users choose and trust Cheapflights to book the best flight deals from Portsmouth to Los Angeles 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 Los Angeles with no change fees?

Need flexible booking options for your flight to Los Angeles from Portsmouth? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Los Angeles from Portsmouth today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Portsmouth to Los Angeles from £402

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 28/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Los Angeles

Keep the following information in mind while searching for Portsmouth to Los Angeles flight deals. Data was last updated 18 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portsmouth to Los Angeles

Cheapest flights from Portsmouth to Los AngelesExplore the most affordable flight options available from Portsmouth to Los Angeles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Explore the most affordable flight options available from Portsmouth to Los Angeles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Portsmouth to Los Angeles

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

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Los Angeles

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

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

Find hourly flight availability from Portsmouth to Los Angeles. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

What is the cheapest day to fly from Portsmouth to Los Angeles?

Use this chart to determine the cheapest time to fly return from Portsmouth to Los Angeles. Price data was last updated on 29 September 2024.

Weekly flight availability from Portsmouth to Los Angeles

How much does it cost for a return flight from Portsmouth to Los Angeles?

Reviews of airlines servicing Los Angeles

Read reviews from past customers who have flown with British Airways from Portsmouth to Los Angeles. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Los Angeles. 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 Los Angeles from Portsmouth?

How long is the flight from Portsmouth to Los Angeles?

What are the most reliable airlines from Portsmouth to Los Angeles?

What are the cheapest flights from Portsmouth to Los Angeles?

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

How can I find direct flights from Portsmouth to Los Angeles?

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

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

Travelling to a place near Los Angeles?

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 Los Angeles

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

Top 10 airlines flying from Portsmouth to Los Angeles

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portsmouth to Los Angeles?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Portsmouth to Los Angeles
Explore the most affordable flight options available from Portsmouth to Los Angeles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.