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Cheap flights from Santa Ana, California to London from £242

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Santa Ana, California to London departing on 5/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Santa Ana, California to London

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
18:26 - 06:40
SNA
-
LHR
28h 14m
2 stops
United Airlines Logo
06:35 - 18:44
LHR
-
SNA
20h 09m
2 stops
£605United Airlines
Tue, 10 Nov - Fri, 13 Nov
Multiple Airlines Logo
13:15 - 13:20
SNA
-
LHR
16h 05m
1 stop
Multiple Airlines Logo
13:50 - 21:51
LHR
-
SNA
15h 01m
1 stop
£619Multiple Airlines
Tue, 20 Oct - Wed, 28 Oct
British Airways Logo
11:34 - 10:50
SNA
-
LHR
15h 16m
1 stop
British Airways Logo
11:00 - 21:51
LHR
-
SNA
18h 51m
1 stop
£622British Airways
Wed, 30 Sep - Wed, 7 Oct
Multiple Airlines Logo
07:00 - 06:30
SNA
-
LHR
15h 30m
2 stops
Multiple Airlines Logo
12:55 - 21:51
LHR
-
SNA
16h 56m
1 stop
£624Multiple Airlines
Wed, 30 Sep - Wed, 7 Oct
Air Canada Logo
13:15 - 10:00
SNA
-
LHR
36h 45m
2 stops
Air Canada Logo
08:40 - 12:18
LHR
-
SNA
35h 38m
2 stops
£629Air Canada
Fri, 18 Sep - Mon, 21 Sep
Air Canada Logo
13:15 - 13:20
SNA
-
LHR
16h 05m
1 stop
Air Canada Logo
08:40 - 12:18
LHR
-
SNA
35h 38m
2 stops
£643Air Canada
Wed, 7 Oct - Wed, 21 Oct
Multiple Airlines Logo
06:45 - 10:00
SNA
-
LHR
19h 15m
2 stops
Multiple Airlines Logo
14:45 - 10:12
LHR
-
SNA
26h 27m
1 stop
£644Multiple Airlines
Tue, 20 Oct - Wed, 28 Oct
Air Canada Logo
13:15 - 13:20
SNA
-
LHR
16h 05m
1 stop
Air Canada Logo
08:40 - 12:18
LHR
-
SNA
35h 38m
2 stops
£645Air Canada
Wed, 7 Oct - Wed, 21 Oct
United Airlines Logo
19:59 - 11:15
SNA
-
LHR
31h 16m
1 stop
United Airlines Logo
14:30 - 11:26
LHR
-
SNA
28h 56m
1 stop
£654United Airlines
Tue, 10 Nov - Fri, 13 Nov
United Airlines Logo
19:59 - 11:15
SNA
-
LHR
31h 16m
1 stop
United Airlines Logo
14:30 - 11:26
LHR
-
SNA
28h 56m
1 stop
£656United Airlines
Tue, 10 Nov - Fri, 13 Nov

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Lufthansa flights from Santa Ana, California to London Heathrow Airport

Our best Lufthansa deals on Santa Ana, California to London Heathrow Airport flight tickets
Lufthansa
8 Sept
SNA18:32Santa Ana J. Wayne/Orange Cnty
17h 08m
2 stops
LHR19:40London Heathrow
14 Sept
LHR20:25London Heathrow
30h 34m
2 stops
SNA18:59Santa Ana J. Wayne/Orange Cnty
£712
Lufthansa
3 Aug
SNA18:20Santa Ana J. Wayne/Orange Cnty
18h 25m
2 stops
LHR20:45London Heathrow
18 Aug
LHR06:55London Heathrow
18h 34m
2 stops
SNA17:29Santa Ana J. Wayne/Orange Cnty
£724
Lufthansa
3 Jul
SNA18:20Santa Ana J. Wayne/Orange Cnty
18h 25m
2 stops
LHR20:45London Heathrow
13 Jul
LHR20:25London Heathrow
30h 34m
2 stops
SNA18:59Santa Ana J. Wayne/Orange Cnty
£953

Air Canada flights from Santa Ana, California to London Heathrow Airport

Our best Air Canada deals on Santa Ana, California to London Heathrow Airport flight tickets
Air Canada
18 Sept
SNA13:15Santa Ana J. Wayne/Orange Cnty
36h 45m
2 stops
LHR10:00London Heathrow
21 Sept
LHR08:40London Heathrow
35h 38m
2 stops
SNA12:18Santa Ana J. Wayne/Orange Cnty
£629
Air Canada
7 Oct
SNA13:15Santa Ana J. Wayne/Orange Cnty
16h 05m
1 stop
LHR13:20London Heathrow
21 Oct
LHR08:40London Heathrow
35h 38m
2 stops
SNA12:18Santa Ana J. Wayne/Orange Cnty
£643
Air Canada
7 Oct
SNA13:15Santa Ana J. Wayne/Orange Cnty
16h 05m
1 stop
LHR13:20London Heathrow
21 Oct
LHR08:40London Heathrow
35h 38m
2 stops
SNA12:18Santa Ana J. Wayne/Orange Cnty
£645

momondo Fare Finder

 
Customise your flight search to find flights from Santa Ana, California to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 24 June 2026.
Use the filters below to find and compare flights from Santa Ana, California to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 10/11

18:26-06:40

2 stops28h 14m

London Heathrow

Fri 13/11

06:35-18:44

2 stops20h 09m

£605
Fastest return journey

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 20/10

13:15-13:20

1 stop16h 05m

London Heathrow

Wed 28/10

13:50-21:51

1 stop15h 01m

£619

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Wed 30/9

11:34-10:50

1 stop15h 16m

London Heathrow

Wed 7/10

11:00-21:51

1 stop18h 51m

£622

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Wed 30/9

07:00-06:30

2 stops15h 30m

London Heathrow

Wed 7/10

12:55-21:51

1 stop16h 56m

£624

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Fri 18/9

13:15-10:00

2 stops36h 45m

London Heathrow

Mon 21/9

08:40-12:18

2 stops35h 38m

£629

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Wed 7/10

13:15-13:20

1 stop16h 05m

London Heathrow

Wed 21/10

08:40-12:18

2 stops35h 38m

£643

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 20/10

06:45-10:00

2 stops19h 15m

London Heathrow

Wed 28/10

14:45-10:12

1 stop26h 27m

£644

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Wed 7/10

13:15-13:20

1 stop16h 05m

London Heathrow

Wed 21/10

08:40-12:18

2 stops35h 38m

£645

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 10/11

19:59-11:15

1 stop31h 16m

London Heathrow

Fri 13/11

14:30-11:26

1 stop28h 56m

£654

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 10/11

19:59-11:15

1 stop31h 16m

London Heathrow

Fri 13/11

14:30-11:26

1 stop28h 56m

£656

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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How to get the cheapest flight ticket from Santa Ana, California to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Santa Ana, California and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

In general, August is the cheapest month to fly from Santa Ana, California to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £439. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Santa Ana, California averaging around £445.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Santa Ana, California is on a Monday. momondo users have found tickets for Monday departures for as low as £586. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £708.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is at midday. momondo users have found flights departing from Santa Ana, California to London Heathrow Airport at midday for as low as £582. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £671 on average. Flights to London Heathrow Airport from Santa Ana, California in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

When to book flights from Santa Ana, California to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Santa Ana, California to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Santa Ana, California to London Heathrow Airport (SNA to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Santa Ana, California to London Heathrow Airport

Fastest flight time

12h 20m

Direct flights

None
The fastest flight from Santa Ana, California to London Heathrow Airport takes 12h 20m
There are no direct flights from Santa Ana, California to London Heathrow Airport. There are no popular flight routes from Santa Ana, California to London Heathrow Airport.
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Frequently asked questions about flying from Santa Ana, California to London Heathrow Airport

  • How far is Santa Ana J. Wayne/Orange Cnty to London Heathrow by plane?

    London Heathrow is 5433.2 mi away from Santa Ana J. Wayne/Orange Cnty. A reasonable flight in good conditions will take 12h 20m.

  • When did momondo last update prices for flights from Santa Ana J. Wayne/Orange Cnty Airport to London Heathrow Airport?

    Prices for flights from Santa Ana J. Wayne/Orange Cnty Airport to London Heathrow Airport were last updated today.

  • How old do you have to be to fly from Santa Ana J. Wayne/Orange Cnty Airport to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Santa Ana J. Wayne/Orange Cnty Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from Santa Ana to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Santa Ana.

Can I find flights from Santa Ana to London with flexible booking policies on momondo?

All flight searches from Santa Ana to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Santa Ana to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Santa Ana.

I’m not ready to book a flight from Santa Ana to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Santa Ana to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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