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Cheap flights from Orange County to London Heathrow Airport from £300

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
SNA — LHR
27 Apr — 4 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Orange County to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Orange County to Heathrow
Explore the most affordable flight options available from Orange County to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2026.

Tue 28/418:39
SNA
-
LHR
2 stops20h 01m
Lufthansa
Fri 8/507:25
LHR
-
SNA
2 stops18h 03m
Lufthansa
Deal found 24/3£604
Tue 12/514:42
SNA
-
LHR
1 stop14h 08m
Iberia
Tue 19/508:55
LHR
-
SNA
1 stop19h 17m
Iberia
Deal found 28/3£617
Tue 12/511:10
SNA
-
LHR
2 stops17h 30m
Lufthansa
Tue 19/509:30
LHR
-
SNA
2 stops19h 14m
Lufthansa
Deal found 28/3£619
Tue 29/911:00
SNA
-
LHR
2 stops22h 40m
Scandinavian Airlines
Tue 6/1006:40
LHR
-
SNA
2 stops23h 44m
Scandinavian Airlines
Deal found 26/3£619
Mon 13/412:55
LGB
-
LHR
1 stop13h 05m
Delta
Wed 20/506:30
LHR
-
LGB
2 stops17h 44m
Delta
Deal found 23/3£634
Mon 13/410:55
SNA
-
LHR
1 stop17h 15m
Delta
Thu 21/506:30
LHR
-
SNA
2 stops19h 18m
Delta
Deal found 23/3£634
Wed 15/407:00
LGB
-
LHR
2 stops21h 10m
Virgin Atlantic
Wed 22/419:45
LHR
-
LGB
2 stops33h 57m
Virgin Atlantic
Deal found 24/3£636
Wed 8/411:08
SNA
-
LHR
2 stops22h 32m
Lufthansa
Wed 22/406:55
LHR
-
SNA
2 stops18h 28m
Lufthansa
Deal found 24/3£636
Sat 18/416:53
LGB
-
LHR
2 stops30h 17m
Delta
Wed 20/506:30
LHR
-
LGB
2 stops17h 44m
Delta
Deal found 23/3£637
Wed 12/817:05
LGB
-
LHR
2 stops16h 30m
Delta
Thu 27/806:30
LHR
-
LGB
2 stops17h 51m
Delta
Deal found 24/3£637
Sun 12/419:01
SNA
-
LHR
1 stop33h 09m
Delta
Tue 19/506:30
LHR
-
SNA
2 stops17h 45m
Delta
Deal found 23/3£637
Sat 15/814:00
SNA
-
LHR
1 stop32h 25m
Delta
Fri 28/806:30
LHR
-
SNA
2 stops23h 23m
Delta
Deal found 24/3£638

Find flight deals from Orange County to Heathrow

Keep the following information in mind while searching for Orange County to Heathrow flight deals. Data was last updated 28 March 2026.

Round-trip from

£604

One-way from

£300

Popular in

December

Cheapest in

September

Average price

£532
Lufthansa
  • Lufthansa
  • 28/4-8/5
  • 4 total stops
  • 38h 04m total
  • Orange County to London
Search Deals
21/4
  • 21/4
  • 3 total stops
  • 44h 35m total
  • Orange County to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£63 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Orange County 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 858,174 searches. Data last updated 28 March 2026.
Use the filters below to find and compare flights from Orange County to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Tue 5/5

07:00-13:05

2 stops22h 05m

London Heathrow

Tue 12/5

06:30-16:14

2 stops17h 44m

£637

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Wed 12/8

17:05-17:35

2 stops16h 30m

London Heathrow

Fri 28/8

06:30-21:45

2 stops23h 15m

£637

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Sat 15/8

14:00-06:25

1 stop32h 25m

London Heathrow

Fri 28/8

06:30-21:53

2 stops23h 23m

£638

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Wed 15/4

07:00-10:00

1 stop19h 00m

London Heathrow

Mon 18/5

17:35-21:43

2 stops36h 08m

£649

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 28/4

12:25-13:20

1 stop16h 55m

London Heathrow

Fri 8/5

14:50-21:57

1 stop15h 07m

£652

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Wed 12/8

07:10-13:15

2 stops22h 05m

London Heathrow

Mon 31/8

15:20-16:21

2 stops33h 01m

£652

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Sat 15/8

16:08-07:25

1 stop31h 17m

London Heathrow

Wed 26/8

14:50-20:40

1 stop13h 50m

£659

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Fri 14/8

12:59-10:00

1 stop13h 01m

London Heathrow

Thu 27/8

06:30-16:21

2 stops17h 51m

£671

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Thu 16/4

13:10-13:05

1 stop15h 55m

London Heathrow

Wed 13/5

06:30-16:41

2 stops18h 11m

£671

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Tue 11/8

07:10-11:00

1 stop19h 50m

London Heathrow

Wed 19/8

06:30-21:45

2 stops23h 15m

£672

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 41 resultsSorted by cheapest first
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Best time to book a flight from Orange County to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Orange County with our price prediction graph.
Estimated return 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 Orange County to London Heathrow Airport

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

Currently, August is the cheapest month in which you can book a flight from Orange County to London Heathrow Airport (average of £436). Flying from Orange County to London Heathrow Airport in June is currently the most expensive (average of £704). 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.

Related info for your journey

Find useful and relevant information for your journey from Orange County 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 Orange County to London Heathrow Airport?

    Departing from Orange County to London Heathrow Airport will take you 16h 30m. Airlines will cover a distance of 5438 mi. This flight may include one or multiple stops.

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

    Yes. In addition to deals on Orange County to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Orange County to Heathrow?

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Orange County to London Heathrow Airport (average of £436). Flying from Orange County to London Heathrow Airport in June is currently the most expensive (average of £704). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Northampton
Hounslow
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Eastbourne
Guildford
Watford
Kingston upon Thames
Romford
Ipswich
Swindon
Bedford

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How does Cheapflights help users find flights from Orange County to Heathrow?

Deals for Orange County to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Orange County to Heathrow?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Orange County to Heathrow.

Can Cheapflights find flights from Orange County to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Orange County to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Orange County to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Orange County to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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