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Cheap flights from California to London from £284

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to London departing on 20/9. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:30 - 15:00
SFO
-
SOU
34h 30m
1 stop
Multiple Airlines Logo
19:20 - 14:35
SOU
-
SFO
27h 15m
2 stops
£681Multiple Airlines
Mon, 27 Apr - Mon, 4 May
Multiple Airlines Logo
13:45 - 16:50
SFO
-
SOU
19h 05m
1 stop
Multiple Airlines Logo
09:20 - 15:55
SOU
-
SFO
14h 35m
1 stop
£690Multiple Airlines
Wed, 16 Sep - Wed, 30 Sep
Delta Logo
13:45 - 08:35
SFO
-
SOU
34h 50m
1 stop
Delta Logo
17:20 - 11:45
SOU
-
SFO
26h 25m
1 stop
£708Delta
Mon, 14 Sep - Mon, 28 Sep
Delta Logo
13:45 - 08:35
SFO
-
SOU
34h 50m
1 stop
Delta Logo
09:05 - 11:45
SOU
-
SFO
34h 40m
1 stop
£708Delta
Sun, 13 Sep - Tue, 29 Sep
KLM Logo
11:35 - 16:50
SJC
-
SOU
21h 15m
2 stops
KLM Logo
17:20 - 15:32
SOU
-
SJC
30h 12m
2 stops
£735KLM
Wed, 6 May - Wed, 13 May
Virgin Atlantic Logo
20:25 - 17:35
LAS
-
SOU
13h 10m
1 stop
Virgin Atlantic Logo
09:15 - 18:35
SOU
-
LAS
17h 20m
1 stop
£752Virgin Atlantic
Tue, 11 Aug - Wed, 26 Aug
KLM Logo
07:05 - 08:45
LAS
-
SOU
17h 40m
2 stops
KLM Logo
09:15 - 18:35
SOU
-
LAS
17h 20m
1 stop
£756KLM
Tue, 11 Aug - Wed, 26 Aug
Virgin Atlantic Logo
06:00 - 08:45
LAS
-
SOU
18h 45m
2 stops
Virgin Atlantic Logo
09:15 - 22:44
SOU
-
LAS
21h 29m
2 stops
£763Virgin Atlantic
Tue, 11 Aug - Wed, 26 Aug
Aer Lingus Logo
12:48 - 16:50
LAS
-
SOU
20h 02m
2 stops
Aer Lingus Logo
09:20 - 20:48
SOU
-
LAS
43h 28m
2 stops
£843Aer Lingus
Tue, 11 Aug - Wed, 26 Aug
Aer Lingus Logo
22:45 - 08:40
SAN
-
SOU
25h 55m
2 stops
Aer Lingus Logo
09:20 - 19:16
SOU
-
SAN
41h 56m
2 stops
£875Aer Lingus
Sat, 8 Aug - Fri, 21 Aug

Delta flights from California to Southampton

Our best Delta deals on California to Southampton flight tickets
Delta
14 Sept
SFO13:45San Francisco
34h 50m
1 stop
SOU08:35Southampton Eastleigh
28 Sept
SOU17:20Southampton Eastleigh
26h 25m
1 stop
SFO11:45San Francisco
£708
Delta
13 Sept
SFO13:45San Francisco
34h 50m
1 stop
SOU08:35Southampton Eastleigh
29 Sept
SOU09:05Southampton Eastleigh
34h 40m
1 stop
SFO11:45San Francisco
£708
Delta
13 Sept
SFO22:45San Francisco
25h 50m
2 stops
SOU08:35Southampton Eastleigh
28 Sept
SOU17:20Southampton Eastleigh
26h 25m
1 stop
SFO11:45San Francisco
£710

KLM flights from California to Southampton

Our best KLM deals on California to Southampton flight tickets
KLM
6 May
SJC11:35San Jose
21h 15m
2 stops
SOU16:50Southampton Eastleigh
13 May
SOU17:20Southampton Eastleigh
30h 12m
2 stops
SJC15:32San Jose
£735
KLM
17 Sept
SFO13:00San Francisco
19h 50m
2 stops
SOU16:50Southampton Eastleigh
29 Sept
SOU17:20Southampton Eastleigh
26h 25m
1 stop
SFO11:45San Francisco
£747
KLM
17 Sept
SFO13:00San Francisco
19h 50m
2 stops
SOU16:50Southampton Eastleigh
30 Sept
SOU09:05Southampton Eastleigh
21h 50m
2 stops
SFO22:55San Francisco
£752

momondo Fare Finder

 
Customise your flight search to find flights from California to Southampton 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 25 March 2026.
Use the filters below to find and compare flights from California to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 27/4

20:30-15:00

1 stop34h 30m

Southampton Eastleigh

Mon 4/5

19:20-14:35

2 stops27h 15m

£681

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 16/9

13:45-16:50

1 stop19h 05m

Southampton Eastleigh

Wed 30/9

09:20-15:55

1 stop14h 35m

£690

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 14/9

13:45-08:35

1 stop34h 50m

Southampton Eastleigh

Mon 28/9

17:20-11:45

1 stop26h 25m

£708

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 13/9

13:45-08:35

1 stop34h 50m

Southampton Eastleigh

Tue 29/9

09:05-11:45

1 stop34h 40m

£708

San JoseSouthampton

SJC - SOU

SJCSOU

San Jose

Wed 6/5

11:35-16:50

2 stops21h 15m

Southampton Eastleigh

Wed 13/5

17:20-15:32

2 stops30h 12m

£735
Fastest return journey

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

Tue 11/8

20:25-17:35

1 stop13h 10m

Southampton Eastleigh

Wed 26/8

09:15-18:35

1 stop17h 20m

£752

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

Tue 11/8

07:05-08:45

2 stops17h 40m

Southampton Eastleigh

Wed 26/8

09:15-18:35

1 stop17h 20m

£756

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

Tue 11/8

06:00-08:45

2 stops18h 45m

Southampton Eastleigh

Wed 26/8

09:15-22:44

2 stops21h 29m

£763

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

Tue 11/8

12:48-16:50

2 stops20h 02m

Southampton Eastleigh

Wed 26/8

09:20-20:48

2 stops43h 28m

£843

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sat 8/8

22:45-08:40

2 stops25h 55m

Southampton Eastleigh

Fri 21/8

09:20-19:16

2 stops41h 56m

£875

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to London from

How to get the cheapest flight ticket from California to Southampton

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 cheapest airline that flies from California to Southampton Eastleigh?

KLM, Delta, and Aer Lingus are the most popular carriers operating from California to Southampton Eastleigh

Which airlines fly to Southampton?

Virgin Atlantic, British Airways and United Airlines are the top three most popular airlines that fly to Southampton from California according to our data. Virgin Atlantic is the first choice among our users, with 46% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 13 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

Cheap California to Southampton flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to Southampton

Fastest flight time

12h 25m

Direct flights

None
The fastest flight from California to Southampton takes 12h 25m
There are no direct flights from California to Southampton. There are no popular flight routes from California to Southampton.
Search flight deals

  • When did momondo last update prices for flights from California to Southampton Eastleigh Airport?

    Prices for flights from California to Southampton Eastleigh Airport were last updated today.

  • How old do you have to be to fly from California to Southampton Eastleigh Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from California to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The travel and health documents required for your trip to Southampton Eastleigh Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Southampton Eastleigh Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Portsmouth

Why use momondo?

Why should I use momondo to find a flight deal from California to Southampton?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from California to Southampton. momondo saves you time and could save you money on your trip.

Can I find flights from California to Southampton with flexible booking policies on momondo?

Yes. All flights to Southampton from California on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from California to Southampton?

momondo helps you find the best flight between California and Southampton by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Southampton from California. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Southampton trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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