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$164+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
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

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 August 20, 2025.

Round-trip from

$492
(Booking.com)

One-way from

$164
(oojo)

Popular in

December

Cheapest in

October

Average price

$706
From Irvine to London Heathrow
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One-way flight from Irvine to London Heathrow
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Highest demand for flights based on searches. 8% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 20, 2025.

This Booking.com deal was found by Cheapflights users on 8/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/216:45 pmLAX - LHR
1 stop19h 25mFinnair
Thu 10/910:20 amLHR - LAX
1 stop14h 45mFinnair
Deal found 8/19$492
This Booking.com deal was found by Cheapflights users on 8/20. 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 9/110:50 pmLAX - LHR
Nonstop10h 25mVirgin Atlantic
Tue 9/166:30 amLHR - LAX
1 stop13h 20mVirgin Atlantic
Deal found 8/20$493
This Expedia deal was found by Cheapflights users on 8/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:30 pmLAX - LHR
Nonstop10h 35mIberia
Tue 10/148:50 pmLHR - LAX
1 stop24h 45mIberia
Deal found 8/18$494
This Finnair deal was found by Cheapflights users on 8/19. 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 10/267:50 pmLAX - LHR
1 stop14h 10mFinnair
Tue 11/410:20 amLHR - LAX
1 stop14h 45mFinnair
Deal found 8/19$495
This Booking.com deal was found by Cheapflights users on 8/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/293:30 pmLAX - LHR
Nonstop10h 30mVirgin Atlantic
Wed 10/156:30 amLHR - LAX
1 stop13h 20mVirgin Atlantic
Deal found 8/18$496
This Expedia deal was found by Cheapflights users on 8/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/23:45 pmLAX - LHR
1 stop14h 40mIberia
Tue 10/148:50 pmLHR - LAX
1 stop24h 45mIberia
Deal found 8/20$498
This Expedia deal was found by Cheapflights users on 8/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/31:25 pmLAX - LHR
Nonstop10h 35mIberia
Mon 9/88:50 pmLHR - LAX
1 stop29h 15mIberia
Deal found 8/20$502

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 August 20, 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

Tue 9/2

8:05 pm-2:35 pm

Nonstop10h 30m

London Heathrow

Thu 9/18

11:30 am-6:25 pm

1 stop14h 55m

$509

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 9/7

10:50 pm-5:15 pm

Nonstop10h 25m

London Heathrow

Tue 9/23

11:30 am-6:25 pm

1 stop14h 55m

$509

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 10/5

8:05 pm-2:35 pm

Nonstop10h 30m

London Heathrow

Tue 10/14

6:15 am-1:05 pm

1 stop14h 50m

$510

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 9/24

3:30 pm-10:00 am

Nonstop10h 30m

London Heathrow

Thu 10/9

3:00 pm-9:55 pm

1 stop14h 55m

$510

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 9/22

8:05 pm-2:35 pm

Nonstop10h 30m

London Heathrow

Wed 10/1

6:30 am-11:50 am

1 stop13h 20m

$511

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 10/13

8:05 pm-2:35 pm

Nonstop10h 30m

London Heathrow

Wed 10/22

6:30 am-2:50 pm

1 stop16h 20m

$511

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 10/15

10:50 pm-5:15 pm

Nonstop10h 25m

London Heathrow

Thu 10/23

6:30 am-11:50 am

1 stop13h 20m

$511

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 9/9

3:45 pm-10:15 am

Nonstop10h 30m

London Heathrow

Thu 9/18

6:30 am-2:50 pm

1 stop16h 20m

$511

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 9/3

3:30 pm-10:00 am

Nonstop10h 30m

London Heathrow

Fri 9/12

6:30 am-2:50 pm

1 stop16h 20m

$511

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 9/1

8:05 pm-2:35 pm

Nonstop10h 30m

London Heathrow

Fri 9/12

6:30 am-2:50 pm

1 stop16h 20m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 21 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 August 8, 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, November is the cheapest month in which you can book a flight from Irvine to London Heathrow Airport (average of $661). Flying from Irvine to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 August 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Irvine to London Heathrow Airport as you normally would.

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. Monday 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 August 20, 2025.

The most flights from IR9 to LHR are scheduled on a Monday (56 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (41 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 August 20, 2025.
Read through reviews of airlines operating flights from Irvine to London Heathrow Airport, such as Delta, Virgin Atlantic, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

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
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

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
7.4
Good
658 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

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
2,883 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

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
7,289 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

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 30m. Delta provides one of the quickest options available for as low as $509. The distance between Irvine and London Heathrow Airport is about 5439 mi. Generally, flights for this route are nonstop.

  • 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 KLM (94%), Air France (94%) and Delta (94%).

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

    Looking at all options, your cheapest flight can be booked for $352. While the most popular route (Los Angeles - London Heathrow) can be booked for $453 on average our data indicates $3,045 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, November is the cheapest month in which you can book a flight from Irvine to London Heathrow Airport (average of $661). Flying from Irvine to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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
Hayes
Thornton Heath
Southend-on-Sea
Harrow
Canterbury
Croydon
Dartford
Dover
Stratford-upon-Avon
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Chelmsford
Bedford
Folkestone
Chichester

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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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$272Average$1,046FlexibilityNo cancel feeOn-time60%
JetBlueCheapest$273Average$791FlexibilityNo cancel feeOn-time62%
SWISSCheapest$336Average$691FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$401Average$753FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$418Average$592FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$427Average$654FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$475Average$723FlexibilityNo cancel feeOn-timeN/A
Norse Atlantic UKCheapest$477Average$743FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$524Average$1,198FlexibilityNo cancel feeOn-time71%
FinnairCheapest$524Average$723FlexibilityNo cancel feeOn-time76%

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