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Cheap flights from Portsmouth to Pasadena from £357

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
26 Jun — 3 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap 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 27 May 2026.

Mon 15/609:20
SOU
-
LAX
1 stop17h 05m
Aer Lingus
Mon 20/720:10
LAX
-
SOU
1 stop15h 20m
Aer Lingus
Deal found 26/5£669
Tue 16/609:20
SOU
-
LAX
1 stop17h 05m
Aer Lingus
Mon 20/720:10
LAX
-
SOU
1 stop15h 20m
Aer Lingus
Deal found 26/5£674
Mon 15/609:20
SOU
-
LAX
1 stop17h 05m
Aer Lingus
Sat 25/720:10
LAX
-
SOU
1 stop15h 20m
Aer Lingus
Deal found 26/5£691
Wed 17/608:15
SOU
-
LAX
1 stop18h 10m
Aer Lingus
Wed 22/720:10
LAX
-
SOU
1 stop15h 20m
Aer Lingus
Deal found 26/5£692
Tue 16/609:20
SOU
-
LAX
1 stop17h 05m
Aer Lingus
Sat 25/720:10
LAX
-
SOU
1 stop15h 20m
Aer Lingus
Deal found 26/5£696
Thu 18/609:20
SOU
-
LAX
1 stop17h 05m
Aer Lingus
Mon 20/720:10
LAX
-
SOU
1 stop15h 20m
Aer Lingus
Deal found 26/5£714
Sun 11/1009:15
SOU
-
LAX
1 stop34h 35m
KLM
Tue 20/1007:00
LAX
-
SOU
2 stops17h 45m
KLM
Deal found 23/5£718
Thu 18/609:20
SOU
-
LAX
1 stop17h 05m
Aer Lingus
Sun 26/720:10
LAX
-
SOU
1 stop15h 20m
Aer Lingus
Deal found 26/5£737
Mon 23/1109:20
SOU
-
LAX
1 stop17h 10m
British Airways
Mon 14/1218:00
LAX
-
SOU
2 stops15h 40m
British Airways
Deal found 25/5£757

Find flight deals from Portsmouth to Pasadena

Keep the following information in mind while searching for Portsmouth to Pasadena flight deals. Data was last updated 27 May 2026.

Round-trip from

£669

One-way from

£357

Popular in

July

Cheapest in

January

Average price

£712
Aer Lingus
  • Aer Lingus
  • 15/6-20/7
  • 2 total stops
  • 32h 25m total
  • Portsmouth to Pasadena
Search Deals
25/8
  • 25/8
  • 3 total stops
  • 53h 10m total
  • Portsmouth to Pasadena
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (£225 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (£57 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 27 May 2026.
Use the filters below to find and compare flights from Portsmouth to Pasadena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Mon 6/7

09:20-18:25

1 stop17h 05m

Los Angeles

Mon 13/7

20:10-19:30

1 stop15h 20m

£696

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sun 11/10

17:20-11:50

1 stop26h 30m

Los Angeles

Tue 20/10

16:45-16:50

1 stop16h 05m

£718

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Mon 23/11

09:20-18:30

1 stop17h 10m

Los Angeles

Mon 14/12

18:00-17:40

2 stops15h 40m

£757

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Mon 24/8

09:20-18:25

1 stop17h 05m

Los Angeles

Mon 14/9

20:10-19:30

1 stop15h 20m

£802

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 26/8

09:20-18:25

1 stop17h 05m

Los Angeles

Wed 16/9

20:10-19:30

1 stop15h 20m

£804

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Tue 25/8

09:15-18:25

1 stop17h 10m

Los Angeles

Tue 15/9

20:10-19:30

1 stop15h 20m

£805

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Tue 16/6

17:20-11:50

1 stop26h 30m

Los Angeles

Sun 26/7

23:55-08:45

2 stops24h 50m

£848
Fastest return journey

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 17/6

09:05-14:45

1 stop13h 40m

Los Angeles

Mon 27/7

08:05-08:45

2 stops16h 40m

£848
Cheapest one-way

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sun 20/9

17:20-18:25

1 stop33h 05m

£472

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Tue 15/9

20:00-18:25

1 stop30h 25m

£474

Flights are sorted by cheapest return flights first.

Deals found on 25/5

Showing 1-10 of 17 resultsSorted by cheapest first
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 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 27 May 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 27 May 2026.

The most flights from P0R to P4S are scheduled on a Monday (53 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (53 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?

    Aer Lingus, KLM, and British Airways can get you from Portsmouth to Pasadena in just under 17h 05m. Your travel time can differ by up to 9h 25m. The distance from Portsmouth to Pasadena is about 5434 mi. This flight may include one or multiple stops.

  • 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 KLM (86%), Air France (86%) or Delta (86%) 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 £2,181 for a flight from Portsmouth to Pasadena. The cheapest flight overall is £432 while the most popular route, (Southampton Eastleigh - Los Angeles) is currently priced at £692.

  • 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.

See more FAQs

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Alternative routes for Portsmouth to Pasadena

See prices for flight routes from nearby airports that may be better suited for you.
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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 27 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£238Average£505FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Norse Atlantic UKCheapest£255Average£474FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
SWISSCheapest£296Average£431FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Scandinavian AirlinesCheapest£321Average£423FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Aer LingusCheapest£332Average£451FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£336Average£544FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Brussels AirlinesCheapest£345Average£451FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£350Average£480FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
TAP AIR PORTUGALCheapest£352Average£477FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
KLMCheapest£356Average£566FlexibilityNo cancel feeOn-time75%
Search KLM 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!

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