$334+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Feb 15 — Feb 221
1 adult, Economy
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Find cheap flights from Irvine to Heathrow 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.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
Keep the following information in mind while searching for Irvine to Heathrow flight deals. Data was last updated January 16, 2026.
Most accurate provider | Gotogate 3 stars |
|---|---|
Most trusted provider | Gotogate 3 stars |
Round-trip from | $615 (Delta) |
One-way from | $334 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $781 |
Find flight deals from Irvine to Heathrow
Cheapest flights from Irvine to HeathrowExplore 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 January 16, 2026.
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 January 16, 2026.
This Delta deal was found by Cheapflights users on 1/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2311:59 pm
LAX
- LHR
1 stop13h 11m
Delta
Fri 4/109:55 am
LHR
- LAX
Nonstop11h 15m
Delta
Deal found 1/15![Delta logo]()
$615
This United Airlines deal was found by Cheapflights users on 1/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:00 pm
LAX
- LHR
Nonstop10h 30m
United Airlines
Sat 2/289:00 am
LHR
- LAX
1 stop15h 35m
United Airlines
Deal found 1/15![United Airlines logo]()
$616
This British Airways deal was found by Cheapflights users on 1/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/128:10 pm
LAX
- LHR
1 stop13h 10m
British Airways
Thu 4/308:20 am
LHR
- LAX
Nonstop11h 10m
British Airways
Deal found 1/13![British Airways logo]()
$617
This Scandinavian Airlines deal was found by Cheapflights users on 1/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/117:30 pm
LAX
- LHR
2 stops18h 05m
Scandinavian Airlines
Wed 2/257:50 pm
LHR
- LAX
2 stops29h 10m
Scandinavian Airlines
Deal found 1/14![Scandinavian Airlines logo]()
$618
This United Airlines deal was found by Cheapflights users on 1/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:00 pm
LAX
- LHR
Nonstop10h 30m
United Airlines
Tue 2/173:20 pm
LHR
- LAX
Nonstop11h 25m
United Airlines
Deal found 1/15![United Airlines logo]()
$619
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Sat 2/2110:26 am
LAX
- LHR
1 stop12h 59m
United Airlines
Sat 3/76:35 am
LHR
- LAX
1 stop16h 40m
United Airlines
Deal found 1/13![United Airlines logo]()
$620
This Air Canada deal was found by Cheapflights users on 1/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:05 am
LAX
- LHR
1 stop17h 55m
Multiple Airlines
Wed 9/236:30 am
LHR
- LAX
2 stops17h 43m
Multiple Airlines
Deal found 1/15![Multiple Airlines logo]()
$621
This Air Canada deal was found by Cheapflights users on 1/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:35 am
LAX
- LHR
2 stops18h 25m
Air Canada
Tue 4/73:05 pm
LHR
- LAX
1 stop13h 58m
Air Canada
Deal found 1/14![Air Canada logo]()
$622
This FlightHub deal was found by Cheapflights users on 1/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:10 pm
LAX
- LHR
1 stop36h 50m
Scandinavian Airlines
Mon 4/207:30 pm
LHR
- LAX
1 stop29h 20m
Scandinavian Airlines
Deal found 1/14![Scandinavian Airlines logo]()
$623
This Air Canada deal was found by Cheapflights users on 1/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:10 pm
LAX
- LHR
1 stop13h 40m
Multiple Airlines
Mon 2/237:40 am
LHR
- LAX
2 stops19h 47m
Multiple Airlines
Deal found 1/14![Multiple Airlines logo]()
$624
This Delta deal was found by Cheapflights users on 1/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/67:55 am
LAX
- LHR
1 stop14h 35m
Delta
Wed 4/1511:15 am
LHR
- LAX
1 stop16h 10m
Delta
Deal found 1/14![Delta logo]()
$625
This United Airlines deal was found by Cheapflights users on 1/14. 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.
Thu 3/198:00 pm
LAX
- LHR
Nonstop10h 30m
United Airlines
Mon 3/304:25 pm
LHR
- LAX
1 stop30h 50m
United Airlines
Deal found 1/14![United Airlines logo]()
$626
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 January 16, 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
Mon 3/23
6:19 am-6:55 am
1 stop17h 36m
London Heathrow
Fri 4/10
5:00 pm-8:20 pm
Nonstop11h 20m
$615
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Sun 3/22
1:20 pm-2:50 pm
1 stop18h 30m
London Heathrow
Fri 4/10
5:00 pm-8:20 pm
Nonstop11h 20m
$615
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Wed 3/25
12:10 pm-9:40 am
1 stop14h 30m
London Heathrow
Fri 4/10
5:00 pm-8:20 pm
Nonstop11h 20m
$615
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Fri 2/27
7:00 pm-1:30 pm
Nonstop10h 30m
London Heathrow
Wed 3/4
3:20 pm-6:45 pm
Nonstop11h 25m
$618
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Wed 2/25
7:00 pm-1:30 pm
Nonstop10h 30m
London Heathrow
Mon 3/9
3:20 pm-7:45 pm
Nonstop11h 25m
$618
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Thu 2/26
7:00 pm-1:30 pm
Nonstop10h 30m
London Heathrow
Wed 3/4
3:20 pm-6:45 pm
Nonstop11h 25m
$618
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Sun 5/3
10:39 am-7:40 am
1 stop13h 01m
London Heathrow
Sun 5/17
9:50 am-6:25 pm
1 stop16h 35m
$632
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Sat 4/18
11:40 pm-7:10 am
1 stop23h 30m
London Heathrow
Tue 4/28
6:30 am-11:50 am
1 stop13h 20m
$636
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Wed 2/11
4:35 pm-10:55 am
Nonstop10h 20m
London Heathrow
Mon 2/16
11:20 am-2:35 pm
Nonstop11h 15m
$644
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Sat 2/7
6:10 pm-11:50 am
1 stop33h 40m
London Heathrow
Sat 2/28
3:20 pm-6:45 pm
Nonstop11h 25m
$644
Showing 1-10 of 23 results
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 January 9, 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 $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 January 16, 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 29% 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 January 16, 2026.
The most flights from IR9 to LHR are scheduled on a Thursday (51 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (45 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 January 16, 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.
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
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.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Browse thousands of different options on Cheapflights for your next trip
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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.
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 January 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$273 | Average$806 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$336 | Average$663 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$375 | Average$585 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$440 | Average$620 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$458 | Average$750 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$469 | Average$751 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$476 | Average$679 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$485 | Average$690 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$526 | Average$860 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$542 | Average$764 | FlexibilityNo cancel fee | On-timeN/A |