What are the cheapest airlines to fly from Orange County to London Heathrow Airport one-way?

The cheapet airlines for a one-way flight from Orange County to London Heathrow Airport are WestJet (£212), Air Canada (£290), and United Airlines (£294).

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

How far in advance should I book a flight from Orange County to London Heathrow Airport?

Find a great deal and save up to 51% by booking at least 56 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Orange County to London Heathrow Airport within the next two weeks, with the cheapest ticket starting at £523.

What is the cheapest month to fly from Orange County to London Heathrow Airport?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, October can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Orange County in October are about £529 on average during October, but can be found for as low as £321.

What is the cheapest time of day to fly from KFI to LHR?

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

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.

£212+ Flights from Orange County to London Heathrow Airport

Cheap flight deals from Orange County to Heathrow

Round-trip from	£354
One-way from	£212
Popular in	December
Cheapest in	October
Average price	£594

Virgin Atlantic
6/8-21/8
4 total stops
77h 18m total
Orange County to London

Search Deals

WestJet
28/10
1 total stop
16h 50m total
Orange County to London

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£40 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Orange County to Heathrow

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 1 July 2025.

Wed 6/813:15LGB - LHR

2 stops17h 00mVirgin Atlantic

Thu 21/817:25LHR - LGB

2 stops60h 18mVirgin Atlantic

Deal found 30/6£354

Wed 6/813:15LGB - LHR

2 stops17h 00mMultiple Airlines

Mon 18/820:55LHR - LGB

2 stops27h 31mMultiple Airlines

Deal found 30/6£376

Wed 13/807:01LGB - LHR

1 stop18h 49mAir France

Wed 20/806:15LHR - LGB

2 stops18h 11mAir France

Deal found 29/6£384

Tue 12/814:00SNA - LHR

1 stop15h 30mDelta

Tue 19/806:15LHR - SNA

2 stops17h 48mDelta

Deal found 29/6£384

Wed 13/807:01LGB - LHR

1 stop18h 49mKLM

Wed 20/811:00LHR - LGB

1 stop18h 43mKLM

Deal found 29/6£389

Tue 2/1210:45SNA - LHR

1 stop16h 15mKLM

Tue 16/1212:10LHR - SNA

1 stop16h 29mKLM

Deal found 30/6£389

Thu 14/812:03SNA - LHR

1 stop17h 27mVirgin Atlantic

Thu 21/813:05LHR - SNA

1 stop17h 07mVirgin Atlantic

Deal found 30/6£397

Wed 13/807:01LGB - LHR

2 stops22h 44mDelta

Wed 20/806:15LHR - LGB

2 stops18h 11mDelta

Deal found 28/6£398

Sat 4/1015:27SNA - LHR

1 stop32h 13mUnited Airlines

Tue 14/1014:10LHR - SNA

1 stop30h 08mUnited Airlines

Deal found 29/6£467

Fri 31/1012:25SNA - LHR

2 stops59h 45mAir Canada

Tue 11/1114:30LHR - SNA

1 stop28h 51mAir Canada

Deal found 29/6£473

Tue 19/810:10SNA - LHR

1 stop16h 40mIberia

Mon 25/806:15LHR - SNA

2 stops21h 42mIberia

Deal found 29/6£505

Mon 28/710:19SNA - LHR

1 stop13h 01mBritish Airways

Mon 4/815:40LHR - SNA

1 stop14h 11mBritish Airways

Deal found 28/6£582

Best flights from Orange County to Heathrow
Discover carefully curated flight deals from Orange County to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 July 2025.

Wed 6/813:15LGB - LHR

2 stops17h 00mVirgin Atlantic

Thu 21/817:25LHR - LGB

2 stops60h 18mVirgin Atlantic

Deal found 30/6£354

Wed 6/813:15LGB - LHR

2 stops17h 00mMultiple Airlines

Mon 18/820:55LHR - LGB

2 stops27h 31mMultiple Airlines

Deal found 30/6£376

Tue 12/814:00SNA - LHR

1 stop15h 30mDelta

Tue 19/806:15LHR - SNA

2 stops17h 48mDelta

Deal found 29/6£384

Wed 13/813:15LGB - LHR

1 stop12h 35mKLM

Wed 20/811:00LHR - LGB

1 stop18h 43mKLM

Deal found 1/7£389

Sat 4/1015:27SNA - LHR

1 stop32h 13mUnited Airlines

Tue 14/1014:10LHR - SNA

1 stop30h 08mUnited Airlines

Deal found 29/6£467

Fri 31/1012:25SNA - LHR

2 stops59h 45mAir Canada

Tue 11/1114:30LHR - SNA

1 stop28h 51mAir Canada

Deal found 29/6£473

Tue 19/810:10SNA - LHR

1 stop16h 40mIberia

Mon 25/806:15LHR - SNA

2 stops21h 42mIberia

Deal found 29/6£505

Mon 28/710:19SNA - LHR

1 stop13h 01mBritish Airways

Mon 4/815:40LHR - SNA

1 stop14h 11mBritish Airways

Deal found 28/6£582

Tue 2/1210:45SNA - LHR

1 stop16h 15mKLM

Tue 16/1212:10LHR - SNA

1 stop16h 29mKLM

Deal found 30/6£389

Thu 14/812:03SNA - LHR

1 stop17h 27mVirgin Atlantic

Thu 21/813:05LHR - SNA

1 stop17h 07mVirgin Atlantic

Deal found 30/6£397

Wed 13/807:01LGB - LHR

2 stops22h 44mDelta

Wed 20/806:15LHR - LGB

2 stops18h 11mDelta

Deal found 28/6£398

Last-minute flights from Orange County to Heathrow
Discover last-minute flight deals from Orange County to Heathrow. Data last updated 1 July 2025 and is based on user searches.

Sat 5/708:00SNA - LHR

1 stop21h 10mVirgin Atlantic

Tue 15/710:55LHR - SNA

1 stop15h 26mVirgin Atlantic

Deal found 28/6£830

Sat 5/709:14SNA - LHR

1 stop13h 11mIberia

Sat 12/706:10LHR - SNA

2 stops22h 14mIberia

Deal found 30/6£935

Sat 5/707:30SNA - LHR

3 stops25h 30mScandinavian Airlines

Tue 15/721:05LHR - SNA

3 stops29h 02mScandinavian Airlines

Deal found 28/6£1,218

Mon 7/716:30SNA - LHR

1 stop12h 20mBritish Airways

Mon 14/711:15LHR - SNA

1 stop14h 42mBritish Airways

Deal found 30/6£852

Wed 9/709:45SNA - LHR

2 stops17h 40mDelta

Tue 22/706:30LHR - SNA

2 stops23h 56mDelta

Deal found 29/6£445

Wed 9/710:30SNA - LHR

1 stop13h 50mUnited Airlines

Tue 22/708:00LHR - SNA

1 stop17h 11mUnited Airlines

Deal found 29/6£568

Wed 9/719:14SNA - LHR

2 stops32h 41mIcelandair

Thu 17/721:25LHR - SNA

2 stops33h 05mIcelandair

Deal found 30/6£3,014

Wed 9/713:15LGB - LHR

1 stop12h 35mVirgin Atlantic

Thu 17/710:55LHR - LGB

1 stop13h 31mVirgin Atlantic

Deal found 30/6£5,667

Thu 10/713:30SNA - LHR

2 stops36h 30mAir Canada

Sun 20/706:00LHR - SNA

2 stops38h 29mAir Canada

Deal found 29/6£847

Fri 11/713:15LGB - LHR

2 stops20h 00mMultiple Airlines

Sun 13/719:45LHR - LGB

2 stops28h 41mMultiple Airlines

Deal found 30/6£843

Sun 13/710:14SNA - LHR

1 stop14h 46mIberia

Fri 25/715:10LHR - SNA

1 stop14h 59mIberia

Deal found 29/6£593

Mon 14/707:01LGB - LHR

1 stop18h 49mKLM

Mon 21/706:30LHR - LGB

2 stops23h 08mKLM

Deal found 28/6£520

One-way flights from Orange County to Heathrow
Search for one-way flight options from Orange County to Heathrow. Find affordable one-way fares based on user searches. Data last updated 1 July 2025.

Tue 28/1013:00SNA - LHR

1 stop16h 50mWestJet

Deal found 30/6£212

Sat 16/812:24SNA - LHR

3 stops34h 06mMultiple Airlines

Deal found 30/6£272

Tue 29/713:30SNA - LHR

2 stops36h 30mAir Canada

Deal found 29/6£290

Wed 13/806:50SNA - LHR

2 stops19h 20mUnited Airlines

Deal found 29/6£294

Mon 1/916:30SNA - LHR

1 stop14h 10mBritish Airways

Deal found 30/6£300

Wed 27/813:15LGB - LHR

2 stops20h 00mVirgin Atlantic

Deal found 30/6£302

Mon 28/713:15LGB - LHR

1 stop12h 35mDelta

Deal found 29/6£308

Wed 27/807:55SNA - LHR

2 stops16h 05mAer Lingus

Deal found 30/6£340

Fri 1/817:20SNA - LHR

1 stop13h 45mKLM

Deal found 28/6£342

Sat 16/807:01LGB - LHR

1 stop18h 49mKLM

Deal found 30/6£345

Thu 28/813:50SNA - LHR

1 stop16h 25mDelta

Deal found 30/6£407

Thu 21/807:01LGB - LHR

2 stops22h 44mAir France

Deal found 30/6£413

Cheapflights Fare Finder

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

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Wed 6/8

13:15-14:15

2 stops17h 00m

London Heathrow

Thu 21/8

17:25-21:43

2 stops60h 18m

£354

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Wed 6/8

13:15-14:15

2 stops17h 00m

London Heathrow

Mon 18/8

20:55-16:26

2 stops27h 31m

£376

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 12/8

14:00-13:30

1 stop15h 30m

London Heathrow

Tue 19/8

06:15-16:03

2 stops17h 48m

£384

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Wed 13/8

13:15-09:50

1 stop12h 35m

London Heathrow

Wed 20/8

11:00-21:43

1 stop18h 43m

£389

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 2/12

10:45-11:00

1 stop16h 15m

London Heathrow

Tue 16/12

12:10-20:39

1 stop16h 29m

£389

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Thu 14/8

12:03-13:30

1 stop17h 27m

London Heathrow

Thu 21/8

13:05-22:12

1 stop17h 07m

£397

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Wed 13/8

07:01-13:45

2 stops22h 44m

London Heathrow

Wed 20/8

06:15-16:26

2 stops18h 11m

£398

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Sat 4/10

15:27-07:40

1 stop32h 13m

London Heathrow

Tue 14/10

14:10-12:18

1 stop30h 08m

£467

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Fri 31/10

12:25-07:10

2 stops59h 45m

London Heathrow

Tue 11/11

14:30-11:21

1 stop28h 51m

£473

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 19/8

10:10-10:50

1 stop16h 40m

London Heathrow

Mon 25/8

06:15-19:57

2 stops21h 42m

£505

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 26 results

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, January is the cheapest month in which you can book a flight from Orange County to London Heathrow Airport (average of £112). Flying from Orange County to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown with Delta, KLM, andAir France from Orange County to London Heathrow Airport. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,973 reviews

Check prices

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

7,973 reviews

Delta

8.0

Very Good

7,973 reviews

Check prices

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.

KLM

7.8

Good

1,366 reviews

Delta

8.0

Very Good

7,973 reviews

Check prices

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.

Air France

7.5

Good

1,472 reviews

Delta

8.0

Very Good

7,973 reviews

Check prices

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

8,852 reviews

Delta

8.0

Very Good

7,973 reviews

Check prices

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

654 reviews

Delta

8.0

Very Good

7,973 reviews

Check prices

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

What are the cheapest airlines to fly from Orange County to London Heathrow Airport one-way?
The cheapet airlines for a one-way flight from Orange County to London Heathrow Airport are WestJet (£212), Air Canada (£290), and United Airlines (£294).
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, January is the cheapest month in which you can book a flight from Orange County to London Heathrow Airport (average of £112). Flying from Orange County to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Croydon

Milton Keynes

Hounslow

Deal

Northampton

Gatwick

Slough

Luton

Wembley

Crawley

Eastbourne

Ilford

Watford

Southend-on-Sea

Folkestone

Ipswich

Winchester

Hayes

Maidstone

Swindon

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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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Cheap flights from Orange County to London Heathrow Airport from £212

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 28/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 1 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Orange County to Heathrow

Cheapest flights from Orange County to HeathrowExplore 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 1 July 2025.

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 1 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Orange County to London Heathrow Airport that are best for you.

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.

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?

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown with Delta, KLM, andAir France from Orange County to London Heathrow Airport. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines to fly from Orange County to London Heathrow Airport one-way?

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

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

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

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

Travelling to a place near Orange County?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Orange County to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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Book with Flexibility

Travel Smart

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 1 July 2025.