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Cheap flights from Santa Ana, California to London from £345

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 3/11. 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
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.
Scandinavian Airlines Logo
07:45 - 21:40
SNA
-
LHR
29h 55m
2 stops
Scandinavian Airlines Logo
06:40 - 18:05
LHR
-
SNA
19h 25m
3 stops
£657Scandinavian Airlines
Sun, 27 Sep - Sun, 4 Oct
Iberia Logo
14:29 - 14:25
SNA
-
LHR
15h 56m
1 stop
Iberia Logo
06:30 - 21:51
LHR
-
SNA
23h 21m
2 stops
£661Iberia
Wed, 7 Oct - Wed, 21 Oct
Delta Logo
13:44 - 10:00
SNA
-
LHR
12h 16m
1 stop
Delta Logo
06:30 - 17:22
LHR
-
SNA
18h 52m
2 stops
£662Delta
Mon, 27 Jul - Wed, 19 Aug
Delta Logo
11:45 - 08:45
SNA
-
LHR
13h 00m
1 stop
Delta Logo
08:40 - 19:06
LHR
-
SNA
18h 26m
2 stops
£663Delta
Tue, 3 Nov - Thu, 12 Nov
Air Canada Logo
12:25 - 11:50
SNA
-
LHR
15h 25m
1 stop
Air Canada Logo
14:30 - 13:49
LHR
-
SNA
31h 19m
2 stops
£664Air Canada
Sun, 1 Nov - Tue, 10 Nov
Delta Logo
07:00 - 10:20
SNA
-
LHR
19h 20m
2 stops
Delta Logo
09:55 - 22:24
LHR
-
SNA
20h 29m
2 stops
£665Delta
Wed, 7 Oct - Wed, 21 Oct
Delta Logo
19:05 - 20:00
SNA
-
LHR
16h 55m
2 stops
Delta Logo
06:30 - 19:06
LHR
-
SNA
20h 36m
2 stops
£666Delta
Tue, 3 Nov - Thu, 12 Nov
United Airlines Logo
18:25 - 14:10
SNA
-
LHR
35h 45m
1 stop
United Airlines Logo
15:05 - 12:18
LHR
-
SNA
29h 13m
1 stop
£667United Airlines
Mon, 28 Sep - Fri, 9 Oct
United Airlines Logo
21:04 - 09:10
SNA
-
LHR
29h 06m
1 stop
United Airlines Logo
14:30 - 11:26
LHR
-
SNA
28h 56m
1 stop
£667United Airlines
Sat, 31 Oct - Tue, 10 Nov
Air Canada Logo
13:15 - 06:30
SNA
-
LHR
33h 15m
2 stops
Air Canada Logo
14:05 - 13:05
LHR
-
SNA
31h 00m
2 stops
£668Air Canada
Mon, 10 Aug - Fri, 21 Aug

Scandinavian Airlines flights from Santa Ana, California to London Heathrow Airport

Our best Scandinavian Airlines deals on Santa Ana, California to London Heathrow Airport flight tickets
Scandinavian Airlines
27 Sept
SNA07:45Santa Ana J. Wayne/Orange Cnty
29h 55m
2 stops
LHR21:40London Heathrow
4 Oct
LHR06:40London Heathrow
19h 25m
3 stops
SNA18:05Santa Ana J. Wayne/Orange Cnty
£657
Scandinavian Airlines
24 May
SNA08:30Santa Ana J. Wayne/Orange Cnty
25h 10m
2 stops
LHR17:40London Heathrow
2 Jun
LHR06:40London Heathrow
23h 49m
2 stops
SNA22:29Santa Ana J. Wayne/Orange Cnty
£917
Scandinavian Airlines
24 May
SNA08:30Santa Ana J. Wayne/Orange Cnty
27h 25m
3 stops
LHR19:55London Heathrow
2 Jun
LHR06:40London Heathrow
23h 49m
2 stops
SNA22:29Santa Ana J. Wayne/Orange Cnty
£923

British Airways flights from Santa Ana, California to London Heathrow Airport

Our best British Airways deals on Santa Ana, California to London Heathrow Airport flight tickets
British Airways
3 Aug
SNA12:55Santa Ana J. Wayne/Orange Cnty
17h 30m
1 stop
LHR14:25London Heathrow
18 Aug
LHR20:00London Heathrow
31h 35m
2 stops
SNA19:35Santa Ana J. Wayne/Orange Cnty
£682
British Airways
3 Nov
SNA11:42Santa Ana J. Wayne/Orange Cnty
12h 53m
1 stop
LHR08:35London Heathrow
10 Nov
LHR14:10London Heathrow
15h 29m
1 stop
SNA21:39Santa Ana J. Wayne/Orange Cnty
£713
British Airways
16 Aug
SNA10:35Santa Ana J. Wayne/Orange Cnty
14h 25m
1 stop
LHR09:00London Heathrow
24 Aug
LHR10:05London Heathrow
15h 24m
1 stop
SNA17:29Santa Ana J. Wayne/Orange Cnty
£720

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 13 May 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

Sun 27/9

07:45-21:40

2 stops29h 55m

London Heathrow

Sun 4/10

06:40-18:05

3 stops19h 25m

£657

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Wed 7/10

14:29-14:25

1 stop15h 56m

London Heathrow

Wed 21/10

06:30-21:51

2 stops23h 21m

£661
Fastest return journey

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Mon 27/7

13:44-10:00

1 stop12h 16m

London Heathrow

Wed 19/8

06:30-17:22

2 stops18h 52m

£662

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 3/11

11:45-08:45

1 stop13h 00m

London Heathrow

Thu 12/11

08:40-19:06

2 stops18h 26m

£663

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Sun 1/11

12:25-11:50

1 stop15h 25m

London Heathrow

Tue 10/11

14:30-13:49

2 stops31h 19m

£664

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Wed 7/10

07:00-10:20

2 stops19h 20m

London Heathrow

Wed 21/10

09:55-22:24

2 stops20h 29m

£665

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 3/11

19:05-20:00

2 stops16h 55m

London Heathrow

Thu 12/11

06:30-19:06

2 stops20h 36m

£666

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Mon 28/9

18:25-14:10

1 stop35h 45m

London Heathrow

Fri 9/10

15:05-12:18

1 stop29h 13m

£667

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Sat 31/10

21:04-09:10

1 stop29h 06m

London Heathrow

Tue 10/11

14:30-11:26

1 stop28h 56m

£667

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Mon 10/8

13:15-06:30

2 stops33h 15m

London Heathrow

Fri 21/8

14:05-13:05

2 stops31h 00m

£668

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, January 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 £434. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from Santa Ana, California averaging around £489.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as £538. 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 £652.

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 £566. 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 evening when prices are £598 on average. Flights to London Heathrow Airport from Santa Ana, California in the evening 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 25m

Direct flights

None
The fastest flight from Santa Ana, California to London Heathrow Airport takes 12h 25m
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.
Search flight deals

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 25m.

  • 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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