How long is the flight from Los Angeles to Portsmouth?

For as low as $1,064, Delta can have you in Portsmouth from Los Angeles in 34h 55m. The distance from Los Angeles to Portsmouth is about 5434 mi.

In terms of precipitation, rainfall in Portsmouth ranges from 1.0 - 3.0 inches per month. December is typically the wettest month, when rainfall can reach 3.0 in. July is typically the driest time to visit Portsmouth when rainfall is around 1.0 in.

If weather is an important factor for your trip to Portsmouth, 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 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

What are the cheapest flights from Los Angeles to Portsmouth?

On average you can expect to pay $3,671 for a flight from Los Angeles to Portsmouth. The cheapest flight overall is $333 while the most popular route, (Los Angeles - Southampton Eastleigh) is currently priced at $1,087.

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

Before booking your flight to Portsmouth from Los Angeles, check out the most reliable airlines to get you to your destination on time: SAUDIA (92%), Air Canada (90%), Austrian Airlines( 90%).

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

If you book a flight to Portsmouth from Los Angeles, you will be flying from Los Angeles, which is the city’s only airport. Los Angeles (LAX) is located 9.4 mi from the center of Los Angeles. There are 0 flights from Los Angeles to Portsmouth per day from 22 different airlines.

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

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

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

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

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

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

$376+ Cheap Flights from Los Angeles to Portsmouth

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Cheap flight deals from Los Angeles to Portsmouth

Cheapest

Best

Last-minute

One-way

Cheapest flights from Los Angeles to Portsmouth
Explore the most affordable flight options available from Los Angeles to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.

Fri 9/48:10 pm -

1 stop15h 20m

Mon 9/78:40 pm -

2 stops29h 45m

Deal found 8/21

$989

Mon 10/58:44 am -

2 stops46h 16m

Mon 10/129:20 am -

1 stop17h 05m

Deal found 8/21

$1,011

Mon 10/58:10 pm -

1 stop15h 20m

Mon 10/129:20 am -

1 stop17h 05m

Deal found 8/21

$1,054

Mon 11/21:50 pm -

1 stop34h 20m

Tue 2/165:30 pm -

1 stop26h 15m

Deal found 8/18

$1,064

Sun 10/1811:59 pm -

2 stops24h 36m

Thu 10/295:30 pm -

1 stop26h 15m

Deal found 8/17

$1,068

Wed 10/288:00 am -

2 stops17h 10m

Tue 2/165:30 pm -

1 stop26h 15m

Deal found 8/18

$1,069

Mon 11/21:50 pm -

1 stop34h 20m

Fri 2/198:40 am -

2 stops19h 25m

Deal found 8/18

$1,074

Wed 10/288:00 am -

2 stops17h 10m

Fri 2/198:40 am -

2 stops19h 25m

Deal found 8/18

$1,078

Sat 10/108:10 pm -

2 stops32h 15m

Sat 10/248:00 pm -

1 stop31h 40m

Deal found 8/19

$1,087

Thu 10/224:45 pm -

1 stop16h 05m

Thu 10/295:30 pm -

1 stop26h 15m

Deal found 8/17

$1,114

Sun 10/181:50 pm -

1 stop34h 45m

Mon 10/265:30 pm -

1 stop26h 15m

Deal found 8/17

$1,118

Best flights from Los Angeles to Portsmouth
Discover carefully curated flight deals from Los Angeles to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.

Mon 10/191:50 pm -

1 stop34h 55m

Wed 10/285:30 pm -

1 stop26h 15m

Deal found 8/17

$1,064

Tue 10/204:45 pm -

1 stop16h 05m

Thu 10/295:30 pm -

1 stop26h 15m

Deal found 8/17

$1,064

Mon 10/194:45 pm -

1 stop16h 05m

Thu 10/295:30 pm -

1 stop26h 15m

Deal found 8/17

$1,064

Tue 11/310:40 am -

2 stops22h 20m

Wed 2/175:30 pm -

1 stop26h 15m

Deal found 8/18

$1,069

Wed 10/288:00 am -

2 stops17h 10m

Fri 2/198:40 am -

2 stops19h 25m

Deal found 8/18

$1,078

Tue 11/31:50 pm -

1 stop34h 20m

Sun 2/145:30 pm -

1 stop26h 15m

Deal found 8/18

$1,114

Wed 10/214:45 pm -

1 stop16h 05m

Mon 10/265:30 pm -

1 stop26h 15m

Deal found 8/17

$1,118

Mon 10/194:45 pm -

1 stop16h 05m

Mon 10/265:30 pm -

1 stop26h 15m

Deal found 8/17

$1,118

Fri 10/3011:59 pm -

2 stops25h 56m

Thu 2/185:30 pm -

1 stop26h 15m

Deal found 8/18

$1,119

Mon 10/511:30 am -

2 stops21h 20m

Mon 10/129:05 am -

2 stops19h 35m

Deal found 8/21

$1,128

Tue 9/291:50 pm -

1 stop19h 00m

Sun 11/295:30 pm -

1 stop26h 15m

Deal found 8/20

$1,180

Last-minute flights from Los Angeles to Portsmouth
Discover last-minute flight deals from Los Angeles to Portsmouth. Data last updated August 21, 2026 and is based on user searches.

Wed 9/28:10 pm -

1 stop15h 20m

Sat 9/57:25 pm -

1 stop30h 05m

Deal found 8/19

$1,169

Thu 9/38:10 pm -

1 stop36h 40m

Sun 9/68:00 pm -

1 stop30h 25m

Deal found 8/21

$1,182

Fri 9/48:10 pm -

1 stop15h 20m

Mon 9/78:40 pm -

2 stops29h 45m

Deal found 8/21

$989

Wed 9/98:10 pm -

1 stop15h 20m

Tue 9/229:15 am -

1 stop17h 10m

Deal found 8/18

$1,154

Thu 9/171:50 pm -

1 stop34h 55m

Mon 9/219:05 am -

1 stop34h 45m

Deal found 8/20

$1,166

Fri 9/181:50 pm -

1 stop19h 00m

Mon 9/219:05 am -

1 stop34h 45m

Deal found 8/20

$1,192

Mon 9/284:45 pm -

1 stop32h 00m

Fri 11/275:30 pm -

1 stop26h 15m

Deal found 8/20

$1,180

Mon 9/288:25 am -

2 stops16h 10m

Sun 11/295:30 pm -

1 stop26h 15m

Deal found 8/20

$1,185

One-way flights from Los Angeles to Portsmouth
Search for one-way flight options from Los Angeles to Portsmouth. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.

Sat 10/248:55 pm -

3 stops52h 45m

Deal found 8/21

$376

Fri 10/237:50 pm -

2 stops53h 50m

Deal found 8/21

$387

Thu 10/228:44 am -

3 stops26h 46m

Deal found 8/21

$401

Tue 12/86:20 am -

2 stops17h 50m

Deal found 8/16

$415

Wed 10/289:15 pm -

1 stop15h 15m

Deal found 8/21

$417

Sat 10/2412:21 am -

3 stops33h 54m

Deal found 8/21

$428

Tue 10/277:03 pm -

2 stops38h 32m

Deal found 8/21

$438

Wed 10/282:27 pm -

2 stops22h 03m

Deal found 8/21

$446

Find flight deals from Los Angeles to Portsmouth

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$989 (Kiwi.com)
One-way from	$376 (Kiwi.com)
Popular in	June
Cheapest in	February
Average price	$876

Provider with most accurate pricing for Los Angeles-London (LON) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Los Angeles-London (LON) flights.

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From Los Angeles to Portsmouth

Search Deals

One-way flight from Los Angeles to Portsmouth

Search Deals

Highest demand for flights based on searches. 20% potential increase in price ($223 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesSouthampton

LAX Los Angeles - SOU Southampton Eastleigh

LAXSOU

Los Angeles

Mon 10/19

1:50 pm-8:45 am

1 stop34h 55m

Southampton Eastleigh

Wed 10/28

5:30 pm-12:45 pm

1 stop26h 15m

$1,064

Los AngelesSouthampton

LAX Los Angeles - SOU Southampton Eastleigh

LAXSOU

Los Angeles

Tue 10/20

4:45 pm-4:50 pm

1 stop16h 05m

Southampton Eastleigh

Thu 10/29

5:30 pm-12:45 pm

1 stop26h 15m

$1,064

Los AngelesSouthampton

LAX Los Angeles - SOU Southampton Eastleigh

LAXSOU

Los Angeles

Mon 10/19

4:45 pm-4:50 pm

1 stop16h 05m

Southampton Eastleigh

Thu 10/29

5:30 pm-12:45 pm

1 stop26h 15m

$1,064

Los AngelesSouthampton

LAX Los Angeles - SOU Southampton Eastleigh

LAXSOU

Los Angeles

Tue 11/3

10:40 am-5:00 pm

2 stops22h 20m

Southampton Eastleigh

Wed 2/17

5:30 pm-11:45 am

1 stop26h 15m

$1,069

Quickest round-trip

Los AngelesSouthampton

LAX Los Angeles - SOU Southampton Eastleigh

LAXSOU

Los Angeles

Wed 10/28

8:00 am-8:10 am

2 stops17h 10m

Southampton Eastleigh

Fri 2/19

8:40 am-8:05 pm

2 stops19h 25m

$1,078

Los AngelesSouthampton

LAX Los Angeles - SOU Southampton Eastleigh

LAXSOU

Los Angeles

Tue 11/3

1:50 pm-8:10 am

1 stop34h 20m

Southampton Eastleigh

Sun 2/14

5:30 pm-11:45 am

1 stop26h 15m

$1,114

Los AngelesSouthampton

LAX Los Angeles - SOU Southampton Eastleigh

LAXSOU

Los Angeles

Wed 10/21

4:45 pm-4:50 pm

1 stop16h 05m

Southampton Eastleigh

Mon 10/26

5:30 pm-12:45 pm

1 stop26h 15m

$1,118

Los AngelesSouthampton

LAX Los Angeles - SOU Southampton Eastleigh

LAXSOU

Los Angeles

Mon 10/19

4:45 pm-4:50 pm

1 stop16h 05m

Southampton Eastleigh

Mon 10/26

5:30 pm-12:45 pm

1 stop26h 15m

$1,118

Los AngelesSouthampton

LAX Los Angeles - SOU Southampton Eastleigh

LAXSOU

Los Angeles

Fri 10/30

11:59 pm-8:55 am

2 stops25h 56m

Southampton Eastleigh

Thu 2/18

5:30 pm-11:45 am

1 stop26h 15m

$1,119

Los AngelesSouthampton

LAX Los Angeles - SOU Southampton Eastleigh

LAXSOU

Los Angeles

Mon 10/5

11:30 am-4:50 pm

2 stops21h 20m

Southampton Eastleigh

Mon 10/12

9:05 am-8:40 pm

2 stops19h 35m

$1,128

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 22 resultsSorted by cheapest first

Best time to book a flight from Los Angeles to Portsmouth

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

LAX-SOU

Estimated round-trip 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 Los Angeles to Portsmouth

LAX-P0R

LAX-SOU

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

It’s typically best to fly out from Los Angeles to Portsmouth at noon. Doing so could potentially save you 33% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from Los Angeles to Portsmouth

The most flights from LAX to P0R are scheduled on a Monday (57 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (57 on average).

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

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

Reviews of airlines servicing Portsmouth

See what other customers who have flown with Delta from Los Angeles to Portsmouth have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,513 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

7.8

Good

8,513 reviews

Delta

7.8

Good

8,513 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly from for flights from Los Angeles to Portsmouth?
If you book a flight to Portsmouth from Los Angeles, you will be flying from Los Angeles, which is the city’s only airport. Los Angeles (LAX) is located 9.4 mi from the center of Los Angeles. There are 0 flights from Los Angeles to Portsmouth per day from 22 different airlines.
How long is the flight from Los Angeles to Portsmouth?
For as low as $1,064, Delta can have you in Portsmouth from Los Angeles in 34h 55m. The distance from Los Angeles to Portsmouth is about 5434 mi.
What are the most reliable airlines from Los Angeles to Portsmouth?
Before booking your flight to Portsmouth from Los Angeles, check out the most reliable airlines to get you to your destination on time: SAUDIA (92%), Air Canada (90%), Austrian Airlines( 90%).
What are the cheapest flights from Los Angeles to Portsmouth?
On average you can expect to pay $3,671 for a flight from Los Angeles to Portsmouth. The cheapest flight overall is $333 while the most popular route, (Los Angeles - Southampton Eastleigh) is currently priced at $1,087.
Can I find deals for flights from Los Angeles to Portsmouth that include hotel bookings?
Yes. In addition to deals on Los Angeles to Portsmouth flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Los Angeles to Portsmouth?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Los Angeles to Portsmouth.
Can I find deals for business class flights from Los Angeles to Portsmouth?
Yes. Cheapflights offers flight deals from Los Angeles to Portsmouth 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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Top 10 airlines flying from Los Angeles to Portsmouth

Airline	Cheapest	Average	Flexibility	On-time
Condor	Cheapest$280	Average$280	FlexibilityNo cancel fee	On-time76%
Brussels Airlines	Cheapest$291	Average$939	FlexibilityNo cancel fee	On-timeN/A
SWISS	Cheapest$356	Average$887	FlexibilityNo cancel fee	On-time79%
JetBlue	Cheapest$404	Average$999	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$411	Average$1,093	FlexibilityNo cancel fee	On-timeN/A
Norse Atlantic UK	Cheapest$415	Average$666	FlexibilityNo cancel fee	On-timeN/A
TAP AIR PORTUGAL	Cheapest$429	Average$569	FlexibilityNo cancel fee	On-timeN/A
Aer Lingus	Cheapest$510	Average$789	FlexibilityNo cancel fee	On-timeN/A
Finnair	Cheapest$512	Average$886	FlexibilityNo cancel fee	On-time76%
Scandinavian Airlines	Cheapest$532	Average$893	FlexibilityNo cancel fee	On-time77%

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$376+ Cheap flights from Los Angeles (LAX) to Portsmouth, England

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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Los Angeles to Portsmouth

Cheapest flights from Los Angeles to PortsmouthExplore the most affordable flight options available from Los Angeles to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.

Explore the most affordable flight options available from Los Angeles to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.

Best flights from Los Angeles to PortsmouthDiscover carefully curated flight deals from Los Angeles to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.

Discover carefully curated flight deals from Los Angeles to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.

Last-minute flights from Los Angeles to PortsmouthDiscover last-minute flight deals from Los Angeles to Portsmouth. Data last updated August 21, 2026 and is based on user searches.

Discover last-minute flight deals from Los Angeles to Portsmouth. Data last updated August 21, 2026 and is based on user searches.

One-way flights from Los Angeles to PortsmouthSearch for one-way flight options from Los Angeles to Portsmouth. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.

Search for one-way flight options from Los Angeles to Portsmouth. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.

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

Best time to book a flight from Los Angeles to Portsmouth

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

Cheapflights Insights

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

Find hourly flight availability from Los Angeles to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 21, 2026.

It’s typically best to fly out from Los Angeles to Portsmouth at noon. Doing so could potentially save you 33% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from Los Angeles to Portsmouth

The most flights from LAX to P0R are scheduled on a Monday (57 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (57 on average).

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

Use this chart to determine the cheapest time to fly round-trip from Los Angeles to Portsmouth. Price data was last updated on August 15, 2026.

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

Reviews of airlines servicing Portsmouth

See what other customers who have flown with Delta from Los Angeles to Portsmouth have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How long is the flight from Los Angeles to Portsmouth?

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

What are the cheapest flights from Los Angeles to Portsmouth?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Los Angeles to Portsmouth

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Complete your trip

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Search flights from Los Angeles to Portsmouth by cabin class

Find flights from Los Angeles to Portsmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Los Angeles and Portsmouth flights

Browse other Los Angeles and Portsmouth flight options. Last updated on August 21, 2026.

Other flights from Los Angeles

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Los Angeles to Portsmouth flights

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Top 10 airlines flying from Los Angeles to Portsmouth

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Cheapest flights from Los Angeles to Portsmouth
Explore the most affordable flight options available from Los Angeles to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.

Best flights from Los Angeles to Portsmouth
Discover carefully curated flight deals from Los Angeles to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.

Last-minute flights from Los Angeles to Portsmouth
Discover last-minute flight deals from Los Angeles to Portsmouth. Data last updated August 21, 2026 and is based on user searches.

One-way flights from Los Angeles to Portsmouth
Search for one-way flight options from Los Angeles to Portsmouth. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.