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$259+ Cheap flights from Irvine, 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to London Heathrow are usually found in October or September, booked 35 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Find flight deals from Irvine to Heathrow

Cheapest flights from Irvine to Heathrow
Explore the most affordable flight options available from Irvine to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 18, 2025.

This lol.travel deal was found by Cheapflights users on 11/17. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:15 pmLAX - LHR
Nonstop10h 45mFinnair
Tue 1/134:55 pmLHR - LAX
Nonstop11h 30mFinnair
Deal found 11/17$606
This Gotogate deal was found by Cheapflights users on 11/17. 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
Tue 1/135:00 pmLHR - LAX
1 stop32h 00mScandinavian Airlines
Deal found 11/17$608
This Cheapflightsfares deal was found by Cheapflights users on 11/17. 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.
Tue 11/1811:35 amLAX - LHR
1 stop12h 40mBritish Airways
Wed 11/264:55 pmLHR - LAX
Nonstop11h 30mBritish Airways
Deal found 11/17$609
This Delta deal was found by Cheapflights users on 11/17. 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.
Tue 11/181:29 pmLAX - LHR
1 stop12h 31mDelta
Wed 11/266:30 amLHR - LAX
1 stop13h 15mDelta
Deal found 11/17$610
This Delta deal was found by Cheapflights users on 11/16. 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 12/110:30 pmLAX - LHR
Nonstop10h 20mDelta
Fri 12/125:20 pmLHR - LAX
Nonstop11h 20mDelta
Deal found 11/16$611
This Cheapflightsfares deal was found by Cheapflights users on 11/16. 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 11/307:00 pmLAX - LHR
Nonstop10h 30mMultiple Airlines
Wed 12/107:40 amLHR - LAX
1 stop15h 35mMultiple Airlines
Deal found 11/16$612
This Delta deal was found by Cheapflights users on 11/17. 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 12/2911:55 pmLAX - LHR
1 stop23h 10mDelta
Thu 1/155:20 pmLHR - LAX
Nonstop11h 20mDelta
Deal found 11/17$614
This Trip.com deal was found by Cheapflights users on 11/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:59 pmLAX - LHR
1 stop30h 31mVirgin Atlantic
Sun 1/189:00 amLHR - LAX
1 stop15h 05mVirgin Atlantic
Deal found 11/18$615
This Delta deal was found by Cheapflights users on 11/17. 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.
Wed 11/196:04 amLAX - LHR
1 stop17h 01mDelta
Wed 11/265:20 pmLHR - LAX
Nonstop11h 20mDelta
Deal found 11/17$616
This Finnair deal was found by Cheapflights users on 11/16. 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 11/305:45 pmLAX - LHR
Nonstop10h 35mFinnair
Thu 12/258:20 amLHR - LAX
1 stop15h 26mFinnair
Deal found 11/16$617
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:00 pmLAX - LHR
Nonstop10h 30mMultiple Airlines
Tue 12/166:00 amLHR - LAX
1 stop18h 35mMultiple Airlines
Deal found 11/16$618

Cheap flight deals from Irvine to Heathrow

Keep the following information in mind while searching for Irvine to Heathrow flight deals. Data was last updated November 18, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$606
(lol.travel)

One-way from

$259
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$766
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 Irvine to London Heathrow
Search Deals
One-way flight from Irvine to London Heathrow
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine 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 November 18, 2025.
Use the filters below to find and compare flights from Irvine to London Heathrow Airport that are best for you.

Fly from

Irvine

Fly to

Heathrow

Route

Depart

Return

Price

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 1/22

10:30 pm-4:50 pm

Nonstop10h 20m

London Heathrow

Mon 1/26

6:30 am-11:45 am

1 stop13h 15m

$612

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 1/14

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Mon 1/19

9:00 am-4:35 pm

1 stop15h 35m

$612

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sat 1/24

4:45 pm-9:35 pm

1 stop20h 50m

London Heathrow

Wed 1/28

6:30 pm-2:40 pm

1 stop28h 10m

$614

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 1/23

2:15 pm-11:15 am

1 stop13h 00m

London Heathrow

Tue 1/27

6:35 am-3:15 pm

1 stop16h 40m

$616

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 11/26

10:30 am-7:50 am

1 stop13h 20m

London Heathrow

Wed 12/3

5:20 pm-8:40 pm

Nonstop11h 20m

$616

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 12/10

10:30 pm-4:50 pm

Nonstop10h 20m

London Heathrow

Tue 12/16

1:00 pm-10:37 pm

1 stop17h 37m

$621

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 2/12

7:30 pm-9:40 pm

1 stop18h 10m

London Heathrow

Sun 2/15

9:05 pm-5:00 pm

2 stops27h 55m

$623

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 11/23

11:40 pm-7:05 am

1 stop23h 25m

London Heathrow

Thu 12/4

2:45 pm-8:43 pm

1 stop13h 58m

$626

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 12/31

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Fri 1/9

11:10 am-10:32 am

1 stop31h 22m

$637

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 12/9

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Thu 12/18

3:20 pm-6:45 pm

Nonstop11h 25m

$661

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

Showing 1-10 of 22 results
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Best time to book a flight from Irvine to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Irvine 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 Irvine to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Heathrow. Price data was last updated on November 14, 2025.

The price you pay for your flight from Irvine to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 35 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Irvine to London Heathrow Airport (average of $474). Flying from Irvine to London Heathrow Airport in June is currently the most expensive (average of $699). 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 IR9 to LHR?

Find hourly flight availability from Irvine 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 November 18, 2025.

One of the essential ways to save on airfare from Irvine to London Heathrow Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 9% on airfare.

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

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

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

Weekly flight availability from Irvine to London Heathrow Airport

Explore weekly flight availability from Irvine 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 November 18, 2025.

The most flights from IR9 to LHR are scheduled on a Monday (47 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (45 on average).

How much does it cost to fly round-trip from Irvine to London Heathrow Airport?

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 November 18, 2025.
Read through reviews of airlines operating flights from Irvine to London Heathrow Airport, such as Delta, Virgin Atlantic, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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
673 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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.
United Airlines
7.4
Good
9,019 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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
3,025 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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
7,530 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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 Irvine to Heathrow. 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 Irvine to London Heathrow Airport?

    A quick flight from Irvine to London Heathrow Airport can take about 10h 20m. Delta provides one of the quickest options available for as low as $612. The distance between Irvine and London Heathrow Airport is about 5439 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Irvine to London Heathrow Airport one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $298. However, be on the lookout for offers from United Airlines and LEVEL, as they are both options that can get you from Irvine to London Heathrow Airport for a low price.

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

    The top 3 most reliable airlines when flying from Irvine to London Heathrow Airport are Air Canada (90%), Austrian Airlines (90%) and United Airlines (90%).

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

    Looking at all options, your cheapest flight can be booked for $335. While the most popular route (Los Angeles - London Heathrow) can be booked for $484 on average, our data indicates $3,228 when flying from Irvine to London Heathrow Airport.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Irvine to London Heathrow Airport (average of $474). Flying from Irvine to London Heathrow Airport in June is currently the most expensive (average of $699). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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Top 10 airlines flying from Irvine to Heathrow

Discover the top 10 airlines that operate flights from Irvine 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 November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$272Average$1,046FlexibilityNo cancel feeOn-time60%
JetBlueCheapest$273Average$800FlexibilityNo cancel feeOn-time62%
SWISSCheapest$336Average$706FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$419Average$597FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$427Average$910FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$427Average$625FlexibilityNo cancel feeOn-timeN/A
Norse Atlantic UKCheapest$463Average$741FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$476Average$687FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$486Average$700FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$536Average$900FlexibilityNo cancel feeOn-time70%

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