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$345+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Mar 19 — Mar 261
Thu 3/19
Thu 3/26
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to London Heathrow are usually found in September or October, booked 35 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap 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 February 17, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:30 pm
LAX
-
LHR
1 stop14h 20m
Lufthansa
Tue 3/317:25 am
LHR
-
LAX
1 stop15h 50m
Lufthansa
Deal found 2/15$600
This Booking.com deal was found by Cheapflights users on 2/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:40 am
LAX
-
LHR
2 stops16h 30m
Multiple Airlines
Tue 2/246:35 am
LHR
-
LAX
1 stop16h 40m
Multiple Airlines
Deal found 2/14$601
This Cheapflightsfares deal was found by Cheapflights users on 2/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:45 pm
LAX
-
LHR
1 stop22h 10m
TAP AIR PORTUGAL
Thu 9/107:50 pm
LHR
-
LAX
1 stop26h 45m
TAP AIR PORTUGAL
Deal found 2/14$602
This Cheapflightsfares deal was found by Cheapflights users on 2/13. 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.
Tue 9/14:45 pm
LAX
-
LHR
1 stop22h 10m
TAP AIR PORTUGAL
Tue 9/156:00 am
LHR
-
LAX
1 stop16h 45m
TAP AIR PORTUGAL
Deal found 2/13$603
This Mytrip deal was found by Cheapflights users on 2/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/156:30 am
LAX
-
LHR
1 stop21h 20m
Multiple Airlines
Sat 2/287:40 am
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Deal found 2/13$604
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/155:30 pm
LAX
-
LHR
1 stop14h 20m
Lufthansa
Sat 2/287:40 am
LHR
-
LAX
1 stop15h 35m
Lufthansa
Deal found 2/15$605
This Cheapflightsfares deal was found by Cheapflights users on 2/15. 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.
Sun 2/157:10 pm
LAX
-
LHR
1 stop14h 40m
Multiple Airlines
Sun 2/227:40 am
LHR
-
LAX
1 stop15h 35m
Multiple Airlines
Deal found 2/15$606
This Cheapflightsfares deal was found by Cheapflights users on 2/12. 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.
Fri 2/137:10 pm
LAX
-
LHR
1 stop14h 40m
SWISS
Thu 2/199:00 am
LHR
-
LAX
1 stop15h 35m
SWISS
Deal found 2/12$607
This Cheapflightsfares deal was found by Cheapflights users on 2/16. 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.
Tue 4/75:30 pm
LAX
-
LHR
1 stop14h 10m
Lufthansa
Thu 4/307:25 am
LHR
-
LAX
1 stop15h 50m
Lufthansa
Deal found 2/16$608
This Cheapflightsfares deal was found by Cheapflights users on 2/13. 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 4/225:30 pm
LAX
-
LHR
1 stop14h 10m
Lufthansa
Wed 5/67:25 am
LHR
-
LAX
1 stop15h 50m
Lufthansa
Deal found 2/13$609
This Booking.com deal was found by Cheapflights users on 2/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1812:50 pm
LAX
-
LHR
1 stop15h 00m
Air Canada
Wed 2/251:25 pm
LHR
-
LAX
2 stops17h 30m
Air Canada
Deal found 2/13$610
This Cheapflightsfares deal was found by Cheapflights users on 2/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:35 pm
LAX
-
LHR
1 stop14h 15m
Multiple Airlines
Tue 5/57:25 am
LHR
-
LAX
1 stop15h 50m
Multiple Airlines
Deal found 2/14$611

Find flight deals from Irvine to Heathrow

Keep the following information in mind while searching for Irvine to Heathrow flight deals. Data was last updated February 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$600
(Kiwi.com)

One-way from

$345
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$688
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. 8% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 17, 2026.
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

Wed 4/15

3:30 pm-10:10 am

Nonstop10h 40m

London Heathrow

Mon 4/20

12:10 pm-4:30 pm

1 stop36h 20m

$635

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 4/22

8:30 am-6:30 am

1 stop14h 00m

London Heathrow

Fri 5/8

7:25 am-3:15 pm

1 stop15h 50m

$638

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 3/22

8:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Thu 4/9

6:55 am-3:15 pm

1 stop16h 20m

$649

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 3/23

8:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Tue 4/14

7:25 am-3:15 pm

1 stop15h 50m

$649

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 3/16

8:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Thu 3/26

11:10 am-9:37 pm

1 stop17h 27m

$655

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 3/18

8:15 am-7:10 am

1 stop15h 55m

London Heathrow

Tue 3/24

10:05 am-5:33 pm

1 stop14h 28m

$660

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 3/16

7:55 am-6:50 am

1 stop15h 55m

London Heathrow

Mon 3/23

11:40 am-7:56 pm

1 stop15h 16m

$661

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 2/27

9:00 pm-10:00 pm

1 stop17h 00m

London Heathrow

Tue 3/3

9:20 am-11:30 pm

1 stop22h 10m

$662

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 3/16

8:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Tue 3/31

1:05 pm-4:15 pm

Nonstop11h 10m

$662

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 4/1

3:30 pm-10:10 am

Nonstop10h 40m

London Heathrow

Fri 4/10

6:55 am-3:15 pm

1 stop16h 20m

$663

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/14

Showing 1-10 of 24 results
1
2
3

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 February 13, 2026.

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, December is the cheapest month in which you can book a flight from Irvine to London Heathrow Airport (average of $469). Flying from Irvine to London Heathrow Airport in June is currently the most expensive (average of $700). 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 February 17, 2026.

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 morning tend to be the most expensive. A flight at noon could potentially save you up to 30% 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 October 19, 2025.

Travelers seeking maximum savings on their Irvine to London Heathrow Airport flight should consider departing on Wednesday mornings when fares are most often at their lowest. Thursday mornings 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 February 17, 2026.

The most flights from IR9 to LHR are scheduled on a Monday (51 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (44 on average).

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 February 17, 2026.
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
8,205 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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
8,205 reviews
Delta
7.9
Good
8,205 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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
678 reviews
Delta
7.9
Good
8,205 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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
9,308 reviews
Delta
7.9
Good
8,205 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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
11,294 reviews
Delta
7.9
Good
8,205 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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
7,751 reviews
Delta
7.9
Good
8,205 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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 40m. United Airlines provides one of the quickest options available for as low as $635. The distance between Irvine and London Heathrow Airport is about 5439 mi. Generally, flights for this route are nonstop.

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

    The cheapest airline one-way is Norse Atlantic UK, with whom users have recently found tickets for as low as $139. However, be on the lookout for offers from TAP AIR PORTUGAL and Scandinavian Airlines, 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 (85%), Austrian Airlines (85%) and United Airlines (85%).

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

    Looking at all options, your cheapest flight can be booked for $258. While the most popular route (Los Angeles - London Heathrow) can be booked for $493 on average, our data indicates $3,129 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, December is the cheapest month in which you can book a flight from Irvine to London Heathrow Airport (average of $469). Flying from Irvine to London Heathrow Airport in June is currently the most expensive (average of $700). 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
Ilford
Croydon
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

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Alternative routes for Irvine to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$273Average$806FlexibilityNo cancel feeOn-time62%
SWISSCheapest$300Average$632FlexibilityNo cancel feeOn-time79%
TAP AIR PORTUGALCheapest$420Average$554FlexibilityNo cancel feeOn-timeN/A
Norse Atlantic UKCheapest$458Average$750FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$468Average$625FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$475Average$667FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$486Average$691FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$522Average$813FlexibilityNo cancel feeOn-time70%
IberiaCheapest$541Average$659FlexibilityNo cancel feeOn-time77%
DeltaCheapest$542Average$763FlexibilityNo cancel feeOn-timeN/A

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