Heathrow

$226+ Cheap flights from Pasadena, CA to Heathrow (LHR)

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Jan 25 — Feb 11
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The best prices from Pasadena to London Heathrow are usually found in October or April, booked 83 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Pasadena to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Pasadena (P4S) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 20, 2025.

Round-trip from

$590
(Booking.com)

One-way from

$226
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$725
From Pasadena to London Heathrow
One-way flight from Pasadena to London Heathrow
High demand for flights, 20% potential price rise
Best time to find cheap flights, 3% potential price drop
Average for round-trip flights in January 2025

Find flight deals from Pasadena to Heathrow

Cheapest flights from Pasadena to Heathrow
Explore the most affordable flight options available from Pasadena to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2025.

This Booking.com deal was found by Cheapflights users on 1/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/275:40 pmLAX - LHR
2 stops19h 55mScandinavian Airlines
Tue 2/116:40 amLHR - LAX
1 stop16h 55mScandinavian Airlines
Deal found 1/20$590
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/199:55 pmLAX - LHR
Nonstop10h 30mIberia
Tue 3/253:05 pmLHR - LAX
Nonstop11h 20mIberia
Deal found 1/20$598
This CheapOair deal was found by Cheapflights users on 1/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/267:30 pmLAX - LHR
1 stop29h 40mVueling
Tue 2/119:55 amLHR - LAX
1 stop17h 10mVueling
Deal found 1/19$607
This Finnair deal was found by Cheapflights users on 1/19. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/269:30 pmLAX - LHR
Nonstop10h 30mFinnair
Tue 2/1110:20 amLHR - LAX
1 stop14h 45mFinnair
Deal found 1/19$616
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/273:25 pmLAX - LHR
Nonstop10h 20mVirgin Atlantic
Tue 2/1111:45 amLHR - LAX
1 stop32h 00mVirgin Atlantic
Deal found 1/20$619
This American Airlines deal was found by Cheapflights users on 1/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/198:35 amLAX - LHR
1 stop14h 20mAmerican Airlines
Tue 4/110:20 amLHR - LAX
1 stop14h 45mAmerican Airlines
Deal found 1/19$634
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/228:15 pmLAX - LHR
1 stop13h 35mAer Lingus
Wed 2/59:50 amLHR - LAX
1 stop16h 40mAer Lingus
Deal found 1/20$639
This Cheapflightsfares deal was found by Cheapflights users on 1/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/98:55 pmLAX - LHR
Nonstop10h 30mBritish Airways
Tue 2/1812:30 pmLHR - LAX
Nonstop11h 20mBritish Airways
Deal found 1/19$642
This Delta deal was found by Cheapflights users on 1/20. 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.
Mon 3/2411:20 pmLAX - LHR
Nonstop10h 20mDelta
Wed 4/26:30 amLHR - LAX
1 stop13h 20mDelta
Deal found 1/20$651
This Air Canada deal was found by Cheapflights users on 1/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/298:30 amLAX - LHR
1 stop17h 30mMultiple Airlines
Tue 5/66:30 amLHR - LAX
2 stops17h 38mMultiple Airlines
Deal found 1/20$662
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/37:00 pmLAX - LHR
Nonstop10h 30mUnited Airlines
Wed 2/268:55 amLHR - LAX
1 stop15h 35mUnited Airlines
Deal found 1/20$668
This Air Canada deal was found by Cheapflights users on 1/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/317:00 amLAX - LHR
2 stops19h 00mAir Canada
Thu 4/108:45 amLHR - LAX
2 stops19h 47mAir Canada
Deal found 1/20$670

Find flights from Pasadena to Heathrow within your budget

Customize your flight search to find flights from Pasadena to Heathrow 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 January 20, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 2/17

5:40 pm-9:40 pm

1 stop20h 00m

London Heathrow

Mon 2/24

9:05 pm-3:35 pm

2 stops26h 30m

$590

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 3/19

10:20 pm-4:00 pm

Nonstop10h 40m

London Heathrow

Tue 3/25

11:15 am-3:45 pm

Nonstop11h 30m

$598

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 3/4

8:55 pm-3:25 pm

Nonstop10h 30m

London Heathrow

Tue 3/11

10:20 am-6:05 pm

1 stop14h 45m

$617

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 3/3

8:15 pm-4:50 pm

1 stop12h 35m

London Heathrow

Fri 3/7

9:50 am-6:30 pm

1 stop16h 40m

$618

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 2/17

10:20 pm-4:40 pm

Nonstop10h 20m

London Heathrow

Mon 2/24

8:25 pm-11:45 am

1 stop23h 20m

$620

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 2/11

3:25 pm-9:45 am

Nonstop10h 20m

London Heathrow

Fri 3/7

11:30 am-6:32 pm

1 stop15h 02m

$644

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 4/14

10:55 pm-6:35 am

1 stop23h 40m

London Heathrow

Thu 4/24

10:15 am-7:13 pm

2 stops16h 58m

$659

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 2/12

12:10 pm-10:10 am

1 stop14h 00m

London Heathrow

Thu 2/20

8:55 am-4:30 pm

1 stop15h 35m

$668

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 2/4

7:00 am-12:50 pm

1 stop21h 50m

London Heathrow

Mon 2/10

2:50 pm-7:38 am

2 stops24h 48m

$675

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 2/3

8:55 pm-3:25 pm

Nonstop10h 30m

London Heathrow

Fri 2/14

3:05 pm-6:25 pm

Nonstop11h 20m

$683

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 29 results
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Best time to book a flight from Pasadena to Heathrow

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

Travel insights for flights from Pasadena to Heathrow

Get recent, data-driven insights about flights from Pasadena to Heathrow including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Pasadena to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Pasadena to Heathrow. Price data was last updated on January 17, 2025.

To ensure you get the cheapest price possible for a flight from Pasadena to London Heathrow Airport, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Pasadena to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Pasadena to London Heathrow Airport (average of $661). Flying from Pasadena to London Heathrow Airport in June is currently the most expensive (average of $1,137). 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 LHR?

Find hourly flight availability from Pasadena to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 20, 2025.

When flying from Pasadena to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Pasadena to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Pasadena to Heathrow. Price data was last updated on May 12, 2024.

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

Weekly flight availability from Pasadena to London Heathrow Airport

Explore weekly flight availability from Pasadena to Heathrow. 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 January 20, 2025.

The most flights from P4S to LHR are scheduled on a Monday (48 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (43 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated January 20, 2025.
Get a feel of what it's like to fly with Iberia, Finnair and British Airways from Pasadena to London by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

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

8.0
Very good
8,521 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

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

7.8
Good
1,341 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

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

7.6
Good
1,285 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

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

7.5
Good
1,599 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

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

7.5
Good
665 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

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 Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from Pasadena to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as $226 on WestJet. Other airlines that offer cheap prices include SWISS from $319 and Vueling from $330 one-way.

  • What are the most reliable airlines from Pasadena to London Heathrow Airport?

    No one likes to see their flight delayed. When booking a flight from Pasadena to London Heathrow Airport consider choosing Air Canada (90%), Austrian Airlines (90%) or United Airlines (90%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Pasadena to London Heathrow Airport?

    On average you can expect to pay $1,706 for a flight from Pasadena to London Heathrow Airport. The cheapest flight overall is $405 while the most popular route, (Los Angeles - London Heathrow) is currently priced at $483.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pasadena to Heathrow 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 London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Pasadena to London Heathrow Airport (average of $661). Flying from Pasadena to London Heathrow Airport in June is currently the most expensive (average of $1,137). 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

Traveling to a place near Pasadena?

Book flights to Pasadena if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Harrow
Luton
Wembley
Canterbury
Northampton
Gatwick
Horley
Milton Keynes
Dover
Orpington
Watford
Stratford-upon-Avon
Croydon
Borehamwood
Bromley
Folkestone
Ilford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Pasadena to Heathrow

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

Top 10 airlines flying from Pasadena to Heathrow

Discover the top 10 airlines that operate flights from Pasadena to Heathrow. 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 January 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$369Average$871FlexibilityNo cancel feeOn-time60%
Scandinavian AirlinesCheapest$419Average$600FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$455Average$760FlexibilityNo cancel feeOn-time72%
KLMCheapest$463Average$740FlexibilityNo cancel feeOn-time75%
Norse Atlantic UKCheapest$473Average$721FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$481Average$760FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$487Average$806FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$509Average$835FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$547Average$840FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$552Average$746FlexibilityNo cancel feeOn-time76%
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