HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
United Kingdom

$266+ Cheap flights from Pasadena, CA to the United Kingdom

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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pasadena to United Kingdom with Cheapflights

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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Pasadena to United Kingdom

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

This Gotogate deal was found by Cheapflights users on 12/15. 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.
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
This Cheapflightsfares deal was found by Cheapflights users on 12/15. 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 12/317:00 pmLAX - LHR
Nonstop10h 30mMultiple Airlines
Fri 1/169:00 amLHR - LAX
1 stop15h 35mMultiple Airlines
Deal found 12/15$631
This Cheapflightsfares deal was found by Cheapflights users on 12/15. 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 12/317:10 pmLAX - LCY
1 stop13h 55mSWISS
Fri 1/169:20 amLCY - LAX
1 stop15h 15mSWISS
Deal found 12/15$633
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Wed 12/317:00 pmLAX - LHR
Nonstop10h 30mUnited Airlines
Tue 3/109:00 amLHR - LAX
1 stop15h 35mUnited Airlines
Deal found 12/14$635
This Gotogate deal was found by Cheapflights users on 12/13. 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 12/297:30 pmLAX - LHR
1 stop29h 50mScandinavian Airlines
Sun 3/1510:20 amLHR - LAX
1 stop14h 40mScandinavian Airlines
Deal found 12/13$636
This KAYAK deal was found by Cheapflights users on 12/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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
This Delta deal was found by Cheapflights users on 12/13. 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.
Sun 12/2811:55 pmLAX - LHR
1 stop23h 10mDelta
Wed 1/216:30 amLHR - LAX
1 stop13h 15mDelta
Deal found 12/13$640
This Air Canada deal was found by Cheapflights users on 12/13. 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.
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
This United Airlines deal was found by Cheapflights users on 12/13. 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.
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
This Scandinavian Airlines deal was found by Cheapflights users on 12/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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
This Cheapflightsfares deal was found by Cheapflights users on 12/13. 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 12/317:10 pmLAX - LHR
1 stop14h 40mMultiple Airlines
Fri 1/94:20 pmLHR - LAX
1 stop16h 39mMultiple Airlines
Deal found 12/13$645
This Expedia deal was found by Cheapflights users on 12/13. 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.
Tue 12/305:40 pmLAX - LHR
Nonstop10h 40mIberia
Thu 4/306:10 amLHR - LAX
1 stop20h 00mIberia
Deal found 12/13$646

Find flight deals from Pasadena to United Kingdom

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

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$563
(Kiwi.com)

One-way from

$266
(Kiwi.com)

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 United Kingdom
Search Deals
One-way flight from Pasadena to United Kingdom
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

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pasadena to United Kingdom 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 December 15, 2025.
Use the filters below to find and compare flights from Pasadena to the United Kingdom that are best for you.

Fly from

Pasadena

Fly to

United Kingdom

Route

Depart

Return

Price

Los AngelesGlasgow

LAX - GLA

LAXGLA

Los Angeles

Tue 1/13

6:00 pm-3:50 pm

1 stop13h 50m

Glasgow Intl

Tue 1/20

10:50 am-6:30 pm

1 stop15h 40m

$583

Los AngelesGlasgow

LAX - GLA

LAXGLA

Los Angeles

Thu 2/19

9:00 pm-7:40 pm

1 stop14h 40m

Glasgow Intl

Wed 2/25

10:55 am-6:30 pm

1 stop15h 35m

$583

Los AngelesGlasgow

LAX - GLA

LAXGLA

Los Angeles

Wed 1/21

3:30 pm-12:50 pm

1 stop13h 20m

Glasgow Intl

Wed 1/28

10:55 am-6:30 pm

1 stop15h 35m

$583

Los AngelesGlasgow

LAX - GLA

LAXGLA

Los Angeles

Mon 3/2

3:30 pm-1:05 pm

1 stop13h 35m

Glasgow Intl

Mon 3/9

9:45 am-4:50 pm

1 stop14h 05m

$583

Los AngelesGlasgow

LAX - GLA

LAXGLA

Los Angeles

Fri 2/20

9:00 pm-9:25 pm

1 stop16h 25m

Glasgow Intl

Thu 2/26

8:40 am-3:50 pm

1 stop15h 10m

$583

Los AngelesEdinburgh

LAX - EDI

LAXEDI

Los Angeles

Tue 1/27

8:20 am-7:55 am

1 stop15h 35m

Edinburgh Turnhouse

Tue 2/3

9:25 am-7:09 pm

1 stop17h 44m

$616

Los AngelesEdinburgh

LAX - EDI

LAXEDI

Los Angeles

Thu 2/5

7:20 am-10:40 am

2 stops19h 20m

Edinburgh Turnhouse

Sat 2/14

5:45 am-11:45 am

1 stop14h 00m

$619

Los AngelesEdinburgh

LAX - EDI

LAXEDI

Los Angeles

Wed 1/28

8:20 am-7:55 am

1 stop15h 35m

Edinburgh Turnhouse

Sun 2/1

9:25 am-9:41 pm

2 stops20h 16m

$619

Los AngelesEdinburgh

LAX - EDI

LAXEDI

Los Angeles

Thu 1/29

7:01 am-7:55 am

2 stops16h 54m

Edinburgh Turnhouse

Thu 2/5

9:25 am-12:59 am

2 stops23h 34m

$620

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Pasadena to United Kingdom

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

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

Currently, October is the cheapest month in which you can book a flight from Pasadena to United Kingdom (average of $226). Flying from Pasadena to United Kingdom 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 GB?

Find hourly flight availability from Pasadena to United Kingdom. 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.

When flying from Pasadena to United Kingdom, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 16% versus a flight in the afternoon.

What is the cheapest day to fly from Pasadena to United Kingdom?

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

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

Weekly flight availability from Pasadena to United Kingdom

Explore weekly flight availability from Pasadena to United Kingdom. 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.

The most flights from P4S to GB0 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 United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated December 15, 2025.
Get a feel of what it's like to fly with Delta, Virgin Atlantic, and Norse Atlantic UK from Pasadena to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,010 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

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
8,010 reviews
Delta
7.9
Good
8,010 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

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.
Virgin Atlantic
7.5
Good
675 reviews
Delta
7.9
Good
8,010 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

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
8,010 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

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
3,052 reviews
Delta
7.9
Good
8,010 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

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
7,580 reviews
Delta
7.9
Good
8,010 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

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 United Kingdom. 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 Pasadena to United Kingdom?

    For as low as $583, British Airways can have you in United Kingdom from Pasadena in 13h 50m. Pasadena and United Kingdom are separated by a distance of 5120 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Pasadena to United Kingdom 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 United Kingdom?

    The most popular route from Pasadena to United Kingdom is Los Angeles - London Heathrow. You may also consider Los Angeles - London Gatwick or Los Angeles - London City.

  • What are the most reliable airlines from Pasadena to United Kingdom?

    No one likes to see their flight delayed. When booking a flight from Pasadena to United Kingdom 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 United Kingdom?

    Looking for the cheapest flight from Pasadena to United Kingdom? 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 United Kingdom that include hotel bookings?

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

  • How can I find direct flights from Pasadena to United Kingdom?

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

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

    Yes. Cheapflights offers flight deals from Pasadena to United Kingdom 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 United Kingdom?

    Currently, October is the cheapest month in which you can book a flight from Pasadena to United Kingdom (average of $226). Flying from Pasadena to United Kingdom 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

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 Pasadena to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
Los Angeles to Charles de Gaulle flights
San Francisco to Charles de Gaulle flights
Los Angeles to Leonardo da Vinci/Fiumicino flights
San Francisco to Leonardo da Vinci/Fiumicino flights
Los Angeles to Istanbul flights
Los Angeles to Gatwick flights
Los Angeles to London City flights
Los Angeles to Madrid flights
San Francisco to Gatwick flights
San Francisco to London City flights
Los Angeles to Orly flights
Los Angeles to Amsterdam flights
San Francisco to Istanbul flights
San Francisco to Lisbon flights
San Francisco to Frankfurt flights
San Francisco to Barcelona-El Prat flights
Los Angeles to Barcelona-El Prat flights
Los Angeles to Dublin flights
Los Angeles to Frankfurt flights
Los Angeles to Stansted flights
San Francisco to Amsterdam flights
San Francisco to Dublin flights
San Diego to Heathrow flights
San Francisco to Zurich flights
Los Angeles to Lisbon flights
Ontario to Heathrow flights
Ontario to Charles de Gaulle flights
San Francisco to Orly flights
San Francisco to Madrid flights
San Francisco to Stansted flights
Los Angeles to Athens flights
Los Angeles to Zurich flights
Los Angeles to Malpensa flights
Las Vegas to Heathrow flights
San Francisco to Malpensa flights
Ontario to Palma de Mallorca flights
San Francisco to Munich flights
San Francisco to Athens flights
Los Angeles to Sabiha Gokcen flights
Los Angeles to Palma de Mallorca flights
Santa Ana to Charles de Gaulle flights
San Jose to Charles de Gaulle flights
Los Angeles to Linate flights
Los Angeles to Copenhagen flights
Los Angeles to Munich flights
Ontario to Leonardo da Vinci/Fiumicino flights
Los Angeles to Luton flights
Santa Ana to Leonardo da Vinci/Fiumicino flights

Top 10 airlines flying from Pasadena to United Kingdom

Discover the top 10 airlines that operate flights from Pasadena to United Kingdom. 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$273Average$912FlexibilityNo cancel feeOn-time62%
SWISSCheapest$336Average$741FlexibilityNo cancel feeOn-time79%
Norse Atlantic UKCheapest$357Average$684FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$420Average$602FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$427Average$610FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$427Average$916FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$469Average$1,012FlexibilityNo cancel feeOn-time72%
Aer LingusCheapest$476Average$860FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$486Average$718FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$498Average$818FlexibilityNo cancel feeOn-time70%

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.