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Portsmouth

$262+ Cheap flights from Pasadena, CA 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Pasadena to Portsmouth

Keep the following information in mind while searching for Pasadena to Portsmouth flight deals. Data was last updated July 31, 2025.

Round-trip from

$841
(Delta)

One-way from

$262
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$1,327
From Pasadena to Portsmouth
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One-way flight from Pasadena to Portsmouth
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Highest demand for flights based on searches. 11% potential increase in price ($149 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Pasadena to Portsmouth

Cheapest flights from Pasadena to Portsmouth
Explore the most affordable flight options available from Pasadena to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Expedia deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/78:15 pmLAX - SOU
1 stop15h 15mAer Lingus
Mon 9/159:40 amSOU - LAX
1 stop16h 45mAer Lingus
Deal found 7/28$821
This KLM deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/104:50 pmLAX - SOU
1 stop16h 10mKLM
Wed 9/179:20 amSOU - LAX
1 stop34h 30mKLM
Deal found 7/29$841
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:50 pmLAX - SOU
1 stop31h 55mDelta
Mon 9/155:35 pmSOU - LAX
1 stop26h 15mDelta
Deal found 7/28$843

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pasadena to Portsmouth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Pasadena to Portsmouth that are best for you.

Fly from

Pasadena

Fly to

Portsmouth

Route

Depart

Return

Price

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Sun 9/7

8:15 pm-7:30 pm

1 stop15h 15m

Southampton Eastleigh

Mon 9/15

9:40 am-6:25 pm

1 stop16h 45m

$821

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Wed 9/10

4:50 pm-8:45 am

1 stop31h 55m

Southampton Eastleigh

Mon 9/22

5:35 pm-2:50 pm

1 stop29h 15m

$841

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Fri 9/26

1:50 pm-8:45 am

1 stop34h 55m

Southampton Eastleigh

Wed 10/15

9:20 am-11:50 am

1 stop34h 30m

$890

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Sun 10/19

4:30 pm-8:15 am

2 stops31h 45m

$262

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Sun 10/19

8:15 pm-8:15 am

1 stop28h 00m

$441

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Wed 8/13

4:45 pm-8:45 am

1 stop32h 00m

$514

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Pasadena to Portsmouth

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

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

Currently, November is the cheapest month in which you can book a flight from Pasadena to Portsmouth (average of $661). Flying from Pasadena to Portsmouth in June is currently the most expensive (average of $1,097). 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 P4S to P0R?

Find hourly flight availability from Pasadena 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 July 31, 2025.

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

What is the cheapest day to fly from Pasadena to Portsmouth?

Use this chart to determine the cheapest time to fly round-trip from Pasadena to Portsmouth. Price data was last updated on December 16, 2024.

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

Weekly flight availability from Pasadena to Portsmouth

Explore weekly flight availability from Pasadena to Portsmouth. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 31, 2025.

The most flights from P4S to P0R are scheduled on a Monday (59 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).

Reviews of airlines servicing Portsmouth

Get insights into the airlines that provide service to Portsmouth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portsmouth. Reviews last updated July 31, 2025.
See what other customers who have flown with Delta, KLM, and Aer Lingus from Pasadena 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
8.0
Very good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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.
Aer Lingus
7.1
Good
1,192 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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

Find useful and relevant information for your journey from Pasadena to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most reliable airlines from Pasadena to Portsmouth?

    Consider KLM (89%), Air France (89%) or Delta (89%) when booking your flight. These represent the most reliable airlines when flying from Pasadena to Portsmouth.

  • What are the cheapest flights from Pasadena to Portsmouth?

    Looking at all options, your cheapest flight can be booked for $377. While the most popular route (Los Angeles - Southampton Eastleigh) can be booked for $821 on average our data indicates $3,320 when flying from Pasadena to Portsmouth.

  • Can I find deals for flights from Pasadena to Portsmouth that include hotel bookings?

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

  • How can I find direct flights from Pasadena to Portsmouth?

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

  • Can I find deals for business class flights from Pasadena to Portsmouth?

    Yes. Cheapflights offers flight deals from Pasadena 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.

  • What is the cheapest month to book a flight from Pasadena to Portsmouth?

    Currently, November is the cheapest month in which you can book a flight from Pasadena to Portsmouth (average of $661). Flying from Pasadena to Portsmouth in June is currently the most expensive (average of $1,097). 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.

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Top 10 airlines flying from Pasadena to Portsmouth

Discover the top 10 airlines that operate flights from Pasadena to Portsmouth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$272Average$1,046FlexibilityNo cancel feeOn-time60%
JetBlueCheapest$273Average$791FlexibilityNo cancel feeOn-time62%
SWISSCheapest$336Average$900FlexibilityNo cancel feeOn-time79%
Norse Atlantic UKCheapest$362Average$686FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$375Average$673FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$418Average$592FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$427Average$732FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$476Average$994FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$540Average$720FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$553Average$817FlexibilityNo cancel feeOn-time70%

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