Weekly flight availability from Los Angeles to Portsmouth

The most flights from LAX to P0R are scheduled on a Monday (58 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (35 on average).

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 $2,896 for a flight from Los Angeles to Portsmouth. The cheapest flight overall is $324 while the most popular route, (Los Angeles - Southampton Eastleigh) is currently priced at $994.

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: SriLankan Airlines (93%), KLM (90%), SAUDIA( 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 24 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.

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Highest demand for flights based on searches. 16% potential increase in price ($174 potential increase over avg. RT price).

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Average for round-trip flights in October 2026

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

Prices

Airlines

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 24% on the flight price compared to flying in the morning, which is usually more expensive.

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

8,650 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

8,650 reviews

Delta

7.8

Good

8,650 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 24 different airlines.
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: SriLankan Airlines (93%), KLM (90%), SAUDIA( 90%).
What are the cheapest flights from Los Angeles to Portsmouth?
On average you can expect to pay $2,896 for a flight from Los Angeles to Portsmouth. The cheapest flight overall is $324 while the most popular route, (Los Angeles - Southampton Eastleigh) is currently priced at $994.
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
JetBlue	Cheapest$329	Average$1,041	FlexibilityNo cancel fee	On-time62%
SWISS	Cheapest$356	Average$891	FlexibilityNo cancel fee	On-time79%
Delta	Cheapest$411	Average$1,135	FlexibilityNo cancel fee	On-timeN/A
TAP AIR PORTUGAL	Cheapest$435	Average$632	FlexibilityNo cancel fee	On-timeN/A
Royal Air Maroc	Cheapest$438	Average$662	FlexibilityNo cancel fee	On-time75%
Norse Atlantic UK	Cheapest$505	Average$745	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$522	Average$909	FlexibilityNo cancel fee	On-time77%
Aer Lingus	Cheapest$541	Average$857	FlexibilityNo cancel fee	On-timeN/A

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

Find cheap flights from Los Angeles to Portsmouth with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Los Angeles to Portsmouth

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Popular in

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Cheapflights Insights

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 24% 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 (58 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (35 on average).

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?

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

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

Alternative routes for Los Angeles to Portsmouth

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

Complete your trip

Complete your trip to Portsmouth by adding a car rental and/or hotel reservation to your travel itinerary.

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 October 14, 2026.

Other flights from Los Angeles

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