How long is the flight from Pasadena to London?

Departing from Pasadena to London will take you 10h 20m. Airlines will cover a distance of 5439 mi. This flight may include one or multiple stops.

What are the cheapest airlines to fly from Pasadena to London one-way?

For one-way options, check prices for Norse Atlantic UK. According to our data, you can fly for as low as $139. Users have also found prices from $168 and $172 on TAP AIR PORTUGAL and Scandinavian Airlines, respectively.

In terms of precipitation, rainfall in London 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 when rainfall is around 1.6 in.

If weather is an important factor for your trip to London, 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).

What are the most popular routes from Pasadena to London?

When deciding which route to take from Pasadena to London consider Los Angeles - London Heathrow, Los Angeles - London Gatwick or Los Angeles - London City as they are the most popular.

What are the cheapest flights from Pasadena to London?

Looking for the cheapest flight from Pasadena to London? While on average our users pay $3,098, our data indicates the cheapest price to be $266. The most popular route (Los Angeles - London Heathrow), is priced around $419.

What are the most reliable airlines from Pasadena to London?

Consider Air Canada (90%), Austrian Airlines (90%) or United Airlines (90%) when booking your flight. These represent the most reliable airlines when flying from Pasadena to London.

What are the most popular airlines that fly from Pasadena to London?

Before booking your flight from Pasadena to London check out the most popular airlines for this route: British Airways, Virgin Atlantic or Iberia.

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

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

How can I find direct flights from Pasadena to London?

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

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

Yes. Cheapflights offers flight deals from Pasadena to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$360+ Flights from Pasadena to London

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Pasadena to London are usually found in September or October, booked 31 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Pasadena to London

Cheapest flights from Pasadena to London
Explore the most affordable flight options available from Pasadena to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Tue 12/307:30 pmLAX - LHR

1 stop14h 10mScandinavian Airlines

Sat 2/75:00 pmLHR - LAX

1 stop32h 00mScandinavian Airlines

Deal found 12/15

$628

Wed 12/317:00 pmLAX - LHR

Nonstop10h 30mMultiple Airlines

Fri 1/169:00 amLHR - LAX

1 stop15h 35mMultiple Airlines

Deal found 12/15

$631

Wed 12/317:10 pmLAX - LCY

1 stop13h 55mSWISS

Fri 1/169:20 amLCY - LAX

1 stop15h 15mSWISS

Deal found 12/15

$633

Wed 12/317:00 pmLAX - LHR

Nonstop10h 30mUnited Airlines

Tue 3/109:00 amLHR - LAX

1 stop15h 35mUnited Airlines

Deal found 12/14

$635

Mon 12/297:30 pmLAX - LHR

1 stop29h 50mScandinavian Airlines

Sun 3/1510:20 amLHR - LAX

1 stop14h 40mScandinavian Airlines

Deal found 12/13

$636

Sat 12/277:30 pmLAX - LHR

1 stop15h 00mScandinavian Airlines

Wed 1/149:55 amLHR - LAX

2 stops39h 05mScandinavian Airlines

Deal found 12/14

$638

Sun 12/2811:55 pmLAX - LHR

1 stop23h 10mDelta

Wed 1/216:30 amLHR - LAX

1 stop13h 15mDelta

Deal found 12/13

$640

Wed 12/318:20 amLAX - LHR

1 stop14h 50mAir Canada

Fri 1/166:50 amLHR - LAX

2 stops23h 10mAir Canada

Deal found 12/13

$641

Sun 12/2810:55 pmLAX - LHR

1 stop25h 35mUnited Airlines

Tue 1/206:35 amLHR - LAX

1 stop16h 40mUnited Airlines

Deal found 12/13

$642

Tue 12/307:30 pmLAX - LHR

1 stop15h 00mScandinavian Airlines

Thu 4/309:05 pmLHR - LAX

2 stops27h 45mScandinavian Airlines

Deal found 12/13

$643

Wed 12/317:10 pmLAX - LHR

1 stop14h 40mMultiple Airlines

Fri 1/94:20 pmLHR - LAX

1 stop16h 39mMultiple Airlines

Deal found 12/13

$645

Tue 12/305:40 pmLAX - LHR

Nonstop10h 40mIberia

Thu 4/306:10 amLHR - LAX

1 stop20h 00mIberia

Deal found 12/13

$646

Best flights from Pasadena to London
Discover carefully curated flight deals from Pasadena to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.

Sat 1/176:30 amLAX - STN

3 stops27h 10mMultiple Airlines

Sun 1/256:15 amSTN - LAX

2 stops21h 12mMultiple Airlines

Deal found 12/13

$627

Mon 1/2611:40 pmLAX - LHR

1 stop14h 00mJetBlue

Fri 1/3012:20 pmLHR - LAX

1 stop18h 31mJetBlue

Deal found 12/12

$638

Fri 1/97:00 pmLAX - LHR

Nonstop10h 30mUnited Airlines

Mon 1/122:30 pmLHR - LAX

1 stop29h 18mUnited Airlines

Deal found 12/12

$641

Wed 1/144:35 pmLAX - LHR

Nonstop10h 20mKLM

Mon 1/195:20 pmLHR - LAX

Nonstop11h 20mKLM

Deal found 12/13

$642

Mon 1/1210:30 pmLAX - LHR

Nonstop10h 20mDelta

Sun 1/2511:20 amLHR - LAX

Nonstop11h 15mDelta

Deal found 12/14

$644

Thu 1/221:45 pmLAX - LCY

1 stop19h 35mVirgin Atlantic

Tue 1/278:05 pmLCY - LAX

1 stop23h 40mVirgin Atlantic

Deal found 12/14

$650

Fri 3/611:14 amLAX - LHR

2 stops20h 46mScandinavian Airlines

Tue 3/107:05 amLHR - LAX

2 stops17h 55mScandinavian Airlines

Deal found 12/14

$677

Thu 3/127:55 pmLAX - LGW

2 stops17h 45mTAP AIR PORTUGAL

Mon 3/164:35 pmLGW - LAX

1 stop30h 25mTAP AIR PORTUGAL

Deal found 12/14

$677

Sun 1/117:55 pmLAX - LGW

1 stop19h 25mLEVEL

Sat 1/244:55 pmLGW - LAX

1 stop33h 15mLEVEL

Deal found 12/14

$815

Fri 1/166:10 pmLAX - LGW

1 stop16h 50mBritish Airways

Tue 1/207:40 pmLGW - LAX

2 stops35h 31mBritish Airways

Deal found 12/13

$853

Fri 2/137:10 pmLAX - LGW

1 stop14h 40mSWISS

Sun 2/226:55 amLGW - LAX

2 stops17h 40mSWISS

Deal found 12/13

$882

Sat 2/71:05 pmLAX - LGW

1 stop25h 30mTurkish Airlines

Sat 2/215:05 pmLGW - LAX

1 stop31h 45mTurkish Airlines

Deal found 12/14

$888

Tue 1/209:30 amLAX - LGW

2 stops17h 25mIcelandair

Tue 2/1011:55 amLGW - LAX

2 stops17h 41mIcelandair

Deal found 12/14

$918

Fri 3/135:15 pmLAX - STN

2 stops23h 35mMultiple Airlines

Sat 3/217:55 amSTN - LAX

2 stops20h 25mMultiple Airlines

Deal found 12/12

$628

Fri 2/137:00 pmLAX - LHR

Nonstop10h 30mUnited Airlines

Mon 2/233:20 pmLHR - LAX

Nonstop11h 25mUnited Airlines

Deal found 12/13

$642

Sun 1/181:45 pmLAX - LCY

1 stop18h 50mVirgin Atlantic

Sun 2/11:45 pmLCY - LAX

1 stop30h 00mVirgin Atlantic

Deal found 12/13

$650

Fri 1/1611:55 pmLAX - LCY

2 stops29h 20mDelta

Fri 1/2310:00 amLCY - LAX

1 stop33h 45mDelta

Deal found 12/13

$654

Mon 1/267:30 pmLAX - STN

2 stops17h 50mMultiple Airlines

Mon 2/25:00 pmSTN - LAX

3 stops32h 00mMultiple Airlines

Deal found 12/14

$629

Wed 1/141:45 pmLAX - LCY

1 stop18h 50mVirgin Atlantic

Tue 1/208:05 pmLCY - LAX

1 stop23h 40mVirgin Atlantic

Deal found 12/14

$650

Tue 1/138:00 amLAX - LCY

2 stops15h 15mDelta

Thu 1/2210:00 amLCY - LAX

1 stop33h 45mDelta

Deal found 12/13

$654

Mon 1/510:50 pmLAX - LHR

1 stop24h 35mUnited Airlines

Thu 1/151:45 pmLHR - LAX

1 stop34h 50mUnited Airlines

Deal found 12/14

$658

Thu 1/227:30 pmLAX - STN

1 stop20h 10mMultiple Airlines

Wed 1/286:00 amSTN - LAX

1 stop19h 00mMultiple Airlines

Deal found 12/14

$635

Thu 1/298:00 amLAX - LCY

2 stops15h 15mVirgin Atlantic

Tue 2/175:50 pmLCY - LAX

1 stop25h 55mVirgin Atlantic

Deal found 12/15

$654

Wed 1/77:00 pmLAX - LHR

Nonstop10h 30mUnited Airlines

Wed 1/142:30 pmLHR - LAX

1 stop14h 38mUnited Airlines

Deal found 12/14

$671

Tue 2/174:45 pmLAX - STN

2 stops22h 25mMultiple Airlines

Sun 3/15:55 amSTN - LAX

1 stop20h 15mMultiple Airlines

Deal found 12/14

$644

Thu 1/298:00 amLAX - LCY

2 stops15h 15mVirgin Atlantic

Thu 2/58:05 pmLCY - LAX

1 stop23h 40mVirgin Atlantic

Deal found 12/14

$654

Wed 3/118:00 pmLAX - LHR

Nonstop10h 30mUnited Airlines

Sun 3/298:30 amLHR - LAX

1 stop14h 39mUnited Airlines

Deal found 12/13

$714

Tue 2/244:45 pmLAX - STN

2 stops22h 25mMultiple Airlines

Sun 3/15:55 amSTN - LAX

1 stop20h 15mMultiple Airlines

Deal found 12/13

$653

Thu 1/156:25 amLAX - LCY

2 stops16h 50mVirgin Atlantic

Thu 1/225:50 pmLCY - LAX

1 stop25h 55mVirgin Atlantic

Deal found 12/15

$654

Wed 3/48:46 amLAX - LGW

2 stops18h 09mIcelandair

Mon 3/911:55 amLGW - LAX

2 stops19h 04mIcelandair

Deal found 12/13

$968

Last-minute flights from Pasadena to London
Discover last-minute flight deals from Pasadena to London. Data last updated December 15, 2025 and is based on user searches.

Sun 1/117:30 pmLAX - LHR

2 stops18h 05mScandinavian Airlines

Wed 1/2810:20 amLHR - LAX

1 stop14h 40mScandinavian Airlines

Deal found 12/14

$622

Sun 1/117:10 pmLAX - LHR

1 stop14h 40mSWISS

Mon 1/196:40 pmLHR - LAX

1 stop29h 55mSWISS

Deal found 12/13

$623

Sun 1/117:00 pmLAX - LHR

Nonstop10h 30mUnited Airlines

Sat 1/246:30 amLHR - LAX

1 stop14h 35mUnited Airlines

Deal found 12/14

$626

Mon 1/128:31 pmLAX - LGW

1 stop25h 29mMultiple Airlines

Tue 1/201:00 pmLGW - LAX

2 stops31h 50mMultiple Airlines

Deal found 12/13

$622

Mon 1/128:30 amLAX - LHR

1 stop14h 40mMultiple Airlines

Mon 1/197:40 amLHR - LAX

2 stops19h 47mMultiple Airlines

Deal found 12/14

$624

Mon 1/1211:40 amLAX - LGW

2 stops22h 10mSWISS

Mon 1/196:40 pmLGW - LAX

1 stop29h 55mSWISS

Deal found 12/14

$624

Mon 1/127:00 pmLAX - LHR

Nonstop10h 30mUnited Airlines

Mon 1/194:40 pmLHR - LAX

1 stop30h 35mUnited Airlines

Deal found 12/14

$625

Mon 1/127:10 pmLAX - LCY

1 stop13h 55mSWISS

Sun 1/255:40 pmLCY - LAX

1 stop30h 55mSWISS

Deal found 12/15

$625

Tue 1/134:45 pmLAX - LGW

1 stop33h 05mTAP AIR PORTUGAL

Tue 1/209:20 pmLGW - LAX

2 stops49h 20mTAP AIR PORTUGAL

Deal found 12/13

$627

Fri 1/1611:30 amLAX - LGW

2 stops22h 20mMultiple Airlines

Fri 1/236:40 pmLGW - LAX

1 stop29h 55mMultiple Airlines

Deal found 12/13

$626

Fri 1/2311:40 amLAX - LGW

2 stops22h 10mSWISS

Wed 1/286:40 pmLGW - LAX

1 stop29h 55mSWISS

Deal found 12/12

$623

Mon 1/268:30 amLAX - STN

3 stops31h 25mMultiple Airlines

Tue 2/34:10 pmSTN - LAX

2 stops28h 55mMultiple Airlines

Deal found 12/13

$622

One-way flights from Pasadena to London
Search for one-way flight options from Pasadena to London. Find affordable one-way fares based on user searches. Data last updated December 15, 2025.

Sat 1/1711:50 amLAX - LHR

2 stops17h 00mWestJet

Deal found 12/15

$360

Thu 1/2912:46 pmLAX - LCY

3 stops38h 09mMultiple Airlines

Deal found 12/15

$360

Wed 1/78:23 amLAX - LGW

2 stops26h 12mMultiple Airlines

Deal found 12/13

$360

Sun 1/188:20 amLAX - SEN

3 stops30h 40mMultiple Airlines

Deal found 12/13

$360

Sat 2/145:30 pmLAX - LTN

2 stops17h 55mMultiple Airlines

Deal found 12/14

$361

Thu 1/154:45 pmLAX - LHR

1 stop16h 45mTAP AIR PORTUGAL

Deal found 12/15

$361

Wed 2/188:14 amLAX - LCY

2 stops20h 41mMultiple Airlines

Deal found 12/13

$361

Wed 1/75:30 pmLAX - LHR

1 stop17h 05mLufthansa

Deal found 12/15

$362

Tue 12/304:45 pmLAX - LGW

2 stops32h 40mTAP AIR PORTUGAL

Deal found 12/15

$362

Tue 1/138:30 amLAX - SEN

3 stops43h 30mMultiple Airlines

Deal found 12/14

$362

Thu 5/145:30 pmLAX - LTN

2 stops30h 45mMultiple Airlines

Deal found 12/13

$363

Thu 1/88:20 amLAX - LHR

2 stops25h 10mMultiple Airlines

Deal found 12/14

$363

Find flight deals from Pasadena to London

Most accurate provider	Gotogate 3 stars
Most trusted provider	Gotogate 3 stars
Round-trip from	$622 (Cheapflightsfares)
One-way from	$360 (WestJet)
Popular in	December
Cheapest in	September
Average price	$1,045

Provider with most accurate pricing for Los Angeles-London (LON) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Los Angeles-London (LON) flights.

Search Deals

From Pasadena to London (LON)

Search Deals

One-way flight from Pasadena to London (LON)

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($105 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesLondon

LAX - STN

LAXSTN

Los Angeles

Sat 1/17

6:30 am-5:40 pm

3 stops27h 10m

London Stansted

Sun 1/25

6:15 am-7:27 pm

2 stops21h 12m

$627

Los AngelesLondon

LAX - STN

LAXSTN

Los Angeles

Fri 3/13

5:15 pm-11:50 pm

2 stops23h 35m

London Stansted

Sat 3/21

7:55 am-9:20 pm

2 stops20h 25m

$628

Los AngelesLondon

LAX - STN

LAXSTN

Los Angeles

Mon 1/26

7:30 pm-9:20 pm

2 stops17h 50m

London Stansted

Mon 2/2

5:00 pm-5:00 pm

3 stops32h 00m

$629

Los AngelesLondon

LAX - STN

LAXSTN

Los Angeles

Thu 1/22

7:30 pm-11:40 pm

1 stop20h 10m

London Stansted

Wed 1/28

6:00 am-5:00 pm

1 stop19h 00m

$635

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 1/26

11:40 pm-9:40 pm

1 stop14h 00m

London Heathrow

Fri 1/30

12:20 pm-10:51 pm

1 stop18h 31m

$638

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 1/9

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Mon 1/12

2:30 pm-11:48 am

1 stop29h 18m

$641

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 1/14

4:35 pm-10:55 am

Nonstop10h 20m

London Heathrow

Mon 1/19

5:20 pm-8:40 pm

Nonstop11h 20m

$642

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 2/13

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Mon 2/23

3:20 pm-6:45 pm

Nonstop11h 25m

$642

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 1/12

10:30 pm-4:50 pm

Nonstop10h 20m

London Heathrow

Sun 1/25

11:20 am-2:35 pm

Nonstop11h 15m

$644

Los AngelesLondon

LAX - STN

LAXSTN

Los Angeles

Tue 2/17

4:45 pm-11:10 pm

2 stops22h 25m

London Stansted

Sun 3/1

5:55 am-6:10 pm

1 stop20h 15m

$644

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 60 results

...

Best time to book a flight from Pasadena to London

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

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

Booking 31 days in advance of your planned departure date is, on average, the best time to get cheap flights from Pasadena to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Pasadena to London (average of $226). Flying from Pasadena to London in June is currently the most expensive (average of $556). 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 LON?

It’s optimal to fly from Pasadena to London in the afternoon. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight at noon.

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

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

Weekly flight availability from Pasadena to London

The most flights from P4S to LON are scheduled on a Monday (52 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (36 on average).

Reviews of airlines servicing London

Read reviews from past customers who have flown Delta, American Airlines, and Norse Atlantic UK from Pasadena to London. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,007 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

7.9

Good

8,007 reviews

Delta

7.9

Good

8,007 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.

American Airlines

7.2

Good

11,052 reviews

Delta

7.9

Good

8,007 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.

Norse Atlantic UK

7.2

Good

Delta

7.9

Good

8,007 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.

Iberia

7.0

Good

3,051 reviews

Delta

7.9

Good

8,007 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.

British Airways

6.7

Okay

7,575 reviews

Delta

7.9

Good

8,007 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

How long is the flight from Pasadena to London?
Departing from Pasadena to London will take you 10h 20m. Airlines will cover a distance of 5439 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Pasadena to London one-way?
For one-way options, check prices for Norse Atlantic UK. According to our data, you can fly for as low as $139. Users have also found prices from $168 and $172 on TAP AIR PORTUGAL and Scandinavian Airlines, respectively.
What are the most popular routes from Pasadena to London?
When deciding which route to take from Pasadena to London consider Los Angeles - London Heathrow, Los Angeles - London Gatwick or Los Angeles - London City as they are the most popular.
What are the most reliable airlines from Pasadena to London?
Consider Air Canada (90%), Austrian Airlines (90%) or United Airlines (90%) when booking your flight. These represent the most reliable airlines when flying from Pasadena to London.
What are the cheapest flights from Pasadena to London?
Looking for the cheapest flight from Pasadena to London? While on average our users pay $3,098, our data indicates the cheapest price to be $266. The most popular route (Los Angeles - London Heathrow), is priced around $419.
Can I find deals for flights from Pasadena to London that include hotel bookings?
Yes. In addition to deals on Pasadena to London flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Pasadena to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pasadena to London.
Can I find deals for business class flights from Pasadena to London?
Yes. Cheapflights offers flight deals from Pasadena to London 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?
Currently, October is the cheapest month in which you can book a flight from Pasadena to London (average of $226). Flying from Pasadena to London in June is currently the most expensive (average of $556). 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

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Dartford

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Winchester

Croydon

Orpington

Watford

Hayes

Borehamwood

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Horley

Kingston upon Thames

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Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Pasadena to London

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$273	Average$806	FlexibilityNo cancel fee	On-time62%
SWISS	Cheapest$336	Average$912	FlexibilityNo cancel fee	On-time79%
Norse Atlantic UK	Cheapest$357	Average$684	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$420	Average$602	FlexibilityNo cancel fee	On-time77%
Lufthansa	Cheapest$427	Average$899	FlexibilityNo cancel fee	On-time76%
TAP AIR PORTUGAL	Cheapest$427	Average$610	FlexibilityNo cancel fee	On-timeN/A
Virgin Atlantic	Cheapest$469	Average$798	FlexibilityNo cancel fee	On-time72%
Aer Lingus	Cheapest$476	Average$683	FlexibilityNo cancel fee	On-timeN/A
Finnair	Cheapest$486	Average$694	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$498	Average$782	FlexibilityNo cancel fee	On-time70%

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$360+ Cheap flights from Pasadena, CA to London (LON)

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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Pasadena to London with Cheapflights

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Cheapflights Tip: The best prices from Pasadena to London are usually found in September or October, booked 31 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Pasadena to London

Cheapest flights from Pasadena to LondonExplore the most affordable flight options available from Pasadena to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Explore the most affordable flight options available from Pasadena to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Find flight deals from Pasadena to London

Keep the following information in mind while searching for Pasadena to London flight deals. Data was last updated December 15, 2025.

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Best time to book a flight from Pasadena to London

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Cheapflights Insights

Everything you need to know about your flight from Pasadena to London

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

Use this chart to determine the optimal time to book a round-trip flight from Pasadena to London. Price data was last updated on December 12, 2025.

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

What is the cheapest time of day to fly from P4S to LON?

Find hourly flight availability from Pasadena to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

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

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

Weekly flight availability from Pasadena to London

Explore weekly flight availability from Pasadena to London. 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 December 15, 2025.

Reviews of airlines servicing London

Read reviews from past customers who have flown Delta, American Airlines, and Norse Atlantic UK from Pasadena to London. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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Alternative routes for Pasadena to London

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Cheapest flights from Pasadena to London
Explore the most affordable flight options available from Pasadena to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.