Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from San Antonio to London from £214

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to London departing on 1/9. 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
0 bags
Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from San Antonio to London

Cheap return flights

Enter your travel dates to find the best prices.
Iberia Logo
14:45 - 10:00
SAT
-
LHR
14h 15m
1 stop
Iberia Logo
07:35 - 19:41
LHR
-
SAT
18h 06m
2 stops
£644Iberia
Tue, 27 Oct - Wed, 4 Nov
Iberia Logo
14:45 - 08:15
SAT
-
LHR
12h 30m
1 stop
Iberia Logo
07:35 - 19:41
LHR
-
SAT
18h 06m
2 stops
£644Iberia
Tue, 27 Oct - Wed, 4 Nov
Delta Logo
12:10 - 08:50
SAT
-
LHR
14h 40m
1 stop
Delta Logo
06:30 - 17:09
LHR
-
SAT
16h 39m
2 stops
£646Delta
Wed, 9 Sep - Tue, 22 Sep
Multiple Airlines Logo
13:40 - 10:00
SAT
-
LHR
14h 20m
2 stops
Multiple Airlines Logo
20:05 - 21:13
LHR
-
SAT
31h 08m
2 stops
£647Multiple Airlines
Tue, 15 Sep - Thu, 15 Oct
Air Canada Logo
09:00 - 09:35
SAT
-
LHR
18h 35m
1 stop
Air Canada Logo
17:15 - 21:13
LHR
-
SAT
33h 58m
2 stops
£648Air Canada
Tue, 6 Oct - Thu, 22 Oct
Delta Logo
10:45 - 06:20
SAT
-
LHR
14h 35m
2 stops
Delta Logo
08:40 - 20:22
LHR
-
SAT
17h 42m
2 stops
£649Delta
Tue, 27 Oct - Wed, 4 Nov
Delta Logo
10:45 - 10:20
SAT
-
LHR
17h 35m
2 stops
Delta Logo
06:30 - 17:09
LHR
-
SAT
16h 39m
2 stops
£650Delta
Wed, 9 Sep - Tue, 22 Sep
Air Canada Logo
09:00 - 10:00
SAT
-
LHR
19h 00m
2 stops
Air Canada Logo
17:15 - 21:13
LHR
-
SAT
33h 58m
2 stops
£650Air Canada
Tue, 6 Oct - Thu, 22 Oct
Multiple Airlines Logo
13:40 - 09:35
SAT
-
LHR
13h 55m
2 stops
Multiple Airlines Logo
08:40 - 21:13
LHR
-
SAT
18h 33m
2 stops
£651Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Air Canada Logo
09:00 - 08:35
SAT
-
LHR
17h 35m
1 stop
Air Canada Logo
14:10 - 10:58
LHR
-
SAT
26h 48m
2 stops
£653Air Canada
Tue, 11 Aug - Wed, 19 Aug

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Lufthansa flights from San Antonio to London Heathrow Airport

Our best Lufthansa deals on San Antonio to London Heathrow Airport flight tickets
Lufthansa
19 Aug
SAT17:24San Antonio
18h 16m
2 stops
LHR17:40London Heathrow
31 Aug
LHR20:25London Heathrow
30h 20m
2 stops
SAT20:45San Antonio
£657
Lufthansa
4 Aug
SAT11:43San Antonio
23h 57m
2 stops
LHR17:40London Heathrow
18 Aug
LHR18:30London Heathrow
32h 46m
2 stops
SAT21:16San Antonio
£672
Lufthansa
2 Oct
SAT07:00San Antonio
21h 40m
2 stops
LHR10:40London Heathrow
14 Oct
LHR09:00London Heathrow
20h 08m
2 stops
SAT23:08San Antonio
£684

Scandinavian Airlines flights from San Antonio to London Heathrow Airport

Our best Scandinavian Airlines deals on San Antonio to London Heathrow Airport flight tickets
Scandinavian Airlines
21 Aug
SAT14:10San Antonio
37h 10m
2 stops
LHR09:20London Heathrow
29 Aug
LHR06:40London Heathrow
22h 38m
2 stops
SAT23:18San Antonio
£660
Scandinavian Airlines
21 Aug
SAT14:10San Antonio
37h 10m
2 stops
LHR09:20London Heathrow
29 Aug
LHR06:40London Heathrow
22h 38m
2 stops
SAT23:18San Antonio
£661
Scandinavian Airlines
19 Aug
SAT12:10San Antonio
24h 40m
3 stops
LHR18:50London Heathrow
31 Aug
LHR06:40London Heathrow
22h 38m
2 stops
SAT23:18San Antonio
£677

momondo Fare Finder

 
Customise your flight search to find flights from San Antonio 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 1 May 2026.
Use the filters below to find and compare flights from San Antonio to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 27/10

14:45-10:00

1 stop14h 15m

London Heathrow

Wed 4/11

07:35-19:41

2 stops18h 06m

£644
Fastest return journey

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 27/10

14:45-08:15

1 stop12h 30m

London Heathrow

Wed 4/11

07:35-19:41

2 stops18h 06m

£644

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 9/9

12:10-08:50

1 stop14h 40m

London Heathrow

Tue 22/9

06:30-17:09

2 stops16h 39m

£646

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 15/9

13:40-10:00

2 stops14h 20m

London Heathrow

Thu 15/10

20:05-21:13

2 stops31h 08m

£647

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 6/10

09:00-09:35

1 stop18h 35m

London Heathrow

Thu 22/10

17:15-21:13

2 stops33h 58m

£648

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 27/10

10:45-06:20

2 stops14h 35m

London Heathrow

Wed 4/11

08:40-20:22

2 stops17h 42m

£649

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 9/9

10:45-10:20

2 stops17h 35m

London Heathrow

Tue 22/9

06:30-17:09

2 stops16h 39m

£650

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 6/10

09:00-10:00

2 stops19h 00m

London Heathrow

Thu 22/10

17:15-21:13

2 stops33h 58m

£650

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 12/8

13:40-09:35

2 stops13h 55m

London Heathrow

Wed 19/8

08:40-21:13

2 stops18h 33m

£651

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 11/8

09:00-08:35

1 stop17h 35m

London Heathrow

Wed 19/8

14:10-10:58

2 stops26h 48m

£652

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from San Antonio 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 San Antonio and London Heathrow Airport?

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

In general, October is the cheapest month to fly from San Antonio to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £446. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from San Antonio averaging around £485.

How far in advance should I book a flight from San Antonio to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £656 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San Antonio for as low as £449 on momondo.

How have San Antonio to London Heathrow Airport flight prices changed over time?

As of May 2026, prices for San Antonio to London Heathrow Airport flights are approximately 40% cheaper when compared to flights at the same time last year.

When to book flights from San Antonio to London Heathrow Airport

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

Cheap San Antonio to London Heathrow Airport (SAT to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to London Heathrow Airport

Fastest flight time

11h 30m

Direct flights

None
The fastest flight from San Antonio to London Heathrow Airport takes 11h 30m
There are no direct flights from San Antonio to London Heathrow Airport. There are no popular flight routes from San Antonio to London Heathrow Airport.
Search flight deals

Frequently asked questions about flying from San Antonio to London Heathrow Airport

  • How far is San Antonio to London Heathrow by plane?

    A flight from San Antonio to London Heathrow will travel around 4973.6 mi. In terms of flight time, this usually takes a little over 11h 30m.

  • When did momondo last update prices for flights from San Antonio Airport to London Heathrow Airport?

    Prices for flights from San Antonio Airport to London Heathrow Airport refresh daily.

  • How old do you have to be to fly from San Antonio Airport to London Heathrow Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio 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.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Stratford-upon-Avon
Slough
Wembley
Maidstone
Northampton
Swindon
Ipswich
Southend-on-Sea
Ilford
Canterbury
Guildford
Hayes
Poole
Chelmsford
Folkestone
Dover

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Antonio to London for you.

Can I find flights from San Antonio to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from San Antonio which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Antonio to London?

momondo helps you find the best flight between San Antonio and London 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 San Antonio to London right now. Can momondo alert me if prices change?

Price alerts on flights to London from San Antonio are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your London Heathrow Airport 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 31/5
Sun 7/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London