Find flights
When to book
FAQs

Cheap flights from Portsmouth to Pasadena from £275

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
12 Feb — 19 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Pasadena

Keep the following information in mind while searching for Portsmouth to Pasadena flight deals. Data was last updated 13 January 2026.

Round-trip from

£459

One-way from

£275

Popular in

July

Cheapest in

February

Average price

£436
British Airways
  • British Airways
  • 26/2-5/3
  • 2 total stops
  • 32h 25m total
  • Portsmouth to Pasadena
Search Deals
20/4
  • 20/4
  • 2 total stops
  • 53h 30m total
  • Portsmouth to Pasadena
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (£223 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£34 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Portsmouth to Pasadena

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Pasadena
Explore the most affordable flight options available from Portsmouth to Pasadena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 January 2026.

Thu 26/209:30
SOU
-
LAX
1 stop17h 00m
British Airways
Thu 5/320:15
LAX
-
SOU
1 stop15h 25m
British Airways
Deal found 12/1£459
Mon 1/617:20
SOU
-
LAX
1 stop26h 30m
Multiple Airlines
Mon 15/621:10
LAX
-
SOU
2 stops35h 40m
Multiple Airlines
Deal found 12/1£463
Sun 25/109:30
SOU
-
LAX
1 stop17h 00m
British Airways
Thu 12/220:15
LAX
-
SOU
1 stop15h 25m
British Airways
Deal found 12/1£465
Thu 26/208:50
SOU
-
LAX
1 stop34h 55m
Virgin Atlantic
Thu 5/308:00
LAX
-
SOU
2 stops25h 00m
Virgin Atlantic
Deal found 12/1£468
Sun 25/109:30
SOU
-
LAX
1 stop17h 00m
British Airways
Sun 15/220:15
LAX
-
SOU
1 stop31h 40m
British Airways
Deal found 12/1£470
Wed 25/208:50
SOU
-
LAX
2 stops41h 45m
Virgin Atlantic
Wed 4/313:45
LAX
-
SOU
1 stop34h 35m
Virgin Atlantic
Deal found 11/1£476
Mon 26/109:30
SOU
-
LAX
1 stop17h 00m
British Airways
Wed 11/220:15
LAX
-
SOU
1 stop15h 25m
British Airways
Deal found 12/1£479
Wed 25/217:35
SOU
-
LAX
1 stop26h 10m
Delta
Wed 4/312:20
LAX
-
SOU
2 stops21h 05m
Delta
Deal found 11/1£481
Mon 26/109:30
SOU
-
LAX
1 stop17h 00m
British Airways
Fri 13/220:15
LAX
-
SOU
1 stop28h 30m
British Airways
Deal found 12/1£485
Wed 4/212:25
SOU
-
LAX
1 stop14h 05m
British Airways
Sun 8/221:00
LAX
-
SOU
2 stops27h 25m
British Airways
Deal found 11/1£486

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Pasadena 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 858,174 searches. Data last updated 13 January 2026.
Use the filters below to find and compare flights from Portsmouth to Pasadena that are best for you.

Fly from

Portsmouth

Fly to

Pasadena

Route

Depart

Return

Price

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 28/1

12:25-18:30

1 stop14h 05m

Los Angeles

Thu 12/2

20:15-19:40

1 stop15h 25m

£465

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Thu 29/1

09:30-18:30

1 stop17h 00m

Los Angeles

Thu 12/2

20:15-19:40

1 stop15h 25m

£465

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 4/2

12:25-18:30

1 stop14h 05m

Los Angeles

Sun 8/2

20:15-19:40

1 stop15h 25m

£465

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Thu 29/1

09:30-18:30

1 stop17h 00m

Los Angeles

Wed 11/2

20:15-19:40

1 stop15h 25m

£465

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sun 25/1

09:30-18:30

1 stop17h 00m

Los Angeles

Fri 13/2

20:15-08:45

1 stop28h 30m

£470

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 28/1

12:25-18:30

1 stop14h 05m

Los Angeles

Fri 13/2

20:15-08:45

1 stop28h 30m

£470

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Thu 29/1

09:30-18:30

1 stop17h 00m

Los Angeles

Fri 13/2

20:15-08:45

1 stop28h 30m

£470

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 25/2

08:50-18:35

2 stops41h 45m

Los Angeles

Wed 4/3

13:45-08:20

1 stop34h 35m

£476

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 25/2

17:35-11:45

1 stop26h 10m

Los Angeles

Wed 4/3

12:20-17:25

2 stops21h 05m

£481

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Mon 20/4

20:40-18:10

2 stops53h 30m

£275

Flights are sorted by cheapest return flights first.

Deals found on 12/1

Showing 1-10 of 19 results
1
2

Best time to book a flight from Portsmouth to Pasadena

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

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

Currently, September is the cheapest month in which you can book a flight from Portsmouth to Pasadena (average of £238). Flying from Portsmouth to Pasadena in July is currently the most expensive (average of £395). 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 P4S?

Find hourly flight availability from Portsmouth to Pasadena. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 January 2026.

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

Weekly flight availability from Portsmouth to Pasadena

Explore weekly flight availability from Portsmouth to Pasadena. 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 13 January 2026.

The most flights from P0R to P4S are scheduled on a Monday (50 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (34 on average).

Related info for your journey

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

  • How long is the flight from Portsmouth to Pasadena?

    British Airways can get you from Portsmouth to Pasadena in just under 14h 05m. Your travel time can differ by up to . The distance from Portsmouth to Pasadena is about 5434 mi.

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

    No one likes to see their flight delayed. When booking a flight from Portsmouth to Pasadena consider choosing SriLankan Airlines (97%), Air Canada (93%) or Austrian Airlines (93%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portsmouth to Pasadena?

    On average you can expect to pay £2,654 for a flight from Portsmouth to Pasadena. The cheapest flight overall is £342 while the most popular route, (Southampton Eastleigh - Los Angeles) is currently priced at £459.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Pasadena 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 Pasadena?

    Currently, September is the cheapest month in which you can book a flight from Portsmouth to Pasadena (average of £238). Flying from Portsmouth to Pasadena in July is currently the most expensive (average of £395). 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

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

Alternative routes for Portsmouth to Pasadena

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Los Angeles flights
Heathrow to Las Vegas flights
Heathrow to San Francisco flights
Gatwick to Los Angeles flights
London City to Los Angeles flights
Gatwick to Las Vegas flights
Stansted to Los Angeles flights
London City to Las Vegas flights
Gatwick to San Francisco flights
Heathrow to Ontario flights
London City to San Francisco flights
Heathrow to Santa Ana flights
Stansted to San Francisco flights
Birmingham to Las Vegas flights
Stansted to Las Vegas flights
Luton to Los Angeles flights
Manchester to Las Vegas flights
Heathrow to San Diego flights
Heathrow to San Jose flights
Manchester to Los Angeles flights
Luton to Las Vegas flights
Gatwick to Burbank flights
Heathrow to Oakland flights
Edinburgh to San Francisco flights
Luton to San Francisco flights
Gatwick to San Diego flights
London City to San Diego flights
Gatwick to San Jose flights
Gatwick to Oakland flights
Manchester to San Francisco flights
Newcastle upon Tyne to Las Vegas flights
Manchester to Ontario flights
Heathrow to Burbank flights
Edinburgh to Las Vegas flights
Birmingham to San Francisco flights
Birmingham to Los Angeles flights
Stansted to San Diego flights
Manchester to Santa Ana flights
Leeds to Las Vegas flights
Manchester to San Jose flights
Heathrow to Sacramento flights
Edinburgh to Los Angeles flights
Leeds to San Francisco flights
Leeds to Los Angeles flights
Heathrow to Palm Springs flights
Manchester to San Diego flights
Heathrow to Long Beach flights
Heathrow to Reno flights
Newcastle upon Tyne to Los Angeles flights
Heathrow to Medford flights

Top 10 airlines flying from Portsmouth to Pasadena

Discover the top 10 airlines that operate flights from Portsmouth to Pasadena. 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 858,174 searches. Data last updated 13 January 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£238Average£492FlexibilityNo cancel feeOn-time77%
Search Iberia flights
SWISSCheapest£277Average£488FlexibilityNo cancel feeOn-time79%
Search SWISS flights
FinnairCheapest£279Average£472FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Norse Atlantic UKCheapest£293Average£515FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Aer LingusCheapest£333Average£496FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£335Average£533FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£337Average£449FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air FranceCheapest£356Average£491FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£356Average£521FlexibilityNo cancel feeOn-time75%
Search KLM flights
Brussels AirlinesCheapest£356Average£483FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights

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 Pasadena?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Pasadena from Portsmouth today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portsmouth to Pasadena for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Portsmouth to Pasadena flexibly with Cheapflights today.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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.