Which airport typically offers the quickest stopover for flights from San Antonio to London Heathrow Airport?

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average stopover time of 1h 04m.

What’s the cheapest stopover airport for flights from San Antonio to London Heathrow Airport?

Atlanta (ATL) is the most affordable one-stop option, with an average return flight price of £470.

What’s the top stopover airport for flights from San Antonio to London Heathrow Airport?

Houston (IAH) – chosen by Cheapflights users on 75% of one-stop itineraries from San Antonio to London Heathrow Airport on Cheapflights.

What’s the fastest stopover option from San Antonio to London Heathrow Airport?

Flights via Atlanta (ATL) have the shortest average one-way travel time for one-stop routes: 10h 45m.

How long is the flight from San Antonio to London Heathrow Airport?

A quick flight from San Antonio to London Heathrow Airport can take about 21h 53m. Delta provides one of the quickest options available for as low as £692. The distance from San Antonio to London Heathrow Airport is about 4967 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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).

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

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

What airport do you fly from for flights from San Antonio to London Heathrow?

San Antonio (SAT), located 7.6 mi from the city center, is the airport you fly out of when you book flights from San Antonio to London Heathrow. 0 airlines have flights from San Antonio to London Heathrow on a regular basis. Booking flights from San Antonio to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

Can I find deals for flights from San Antonio to Heathrow that include hotel bookings?

Yes. In addition to deals on San Antonio to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from San Antonio to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Heathrow.

Can I find deals for business class flights from San Antonio to Heathrow?

Yes. Cheapflights offers flight deals from San Antonio 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.

£244+ Cheap Flights from San Antonio to London Heathrow Airport

Cheap flight deals from San Antonio to Heathrow

Enter your travel dates to find the best prices.

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Cheapest flights from San Antonio to Heathrow
Explore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Sun 29/1112:58 -

1 stop13h 17m

Tue 15/1207:30 -

2 stops19h 29m

Deal found 28/10£685

Wed 30/1207:27 -

1 stop20h 33m

Thu 14/107:30 -

2 stops20h 29m

Deal found 30/10£688

Wed 30/1211:09 -

1 stop15h 51m

Wed 13/110:00 -

2 stops20h 45m

Deal found 30/10£690

Wed 30/1209:26 -

2 stops17h 04m

Thu 14/107:40 -

2 stops19h 05m

Deal found 29/10£697

Sun 29/1106:40 -

1 stop18h 25m

Tue 15/1208:55 -

1 stop14h 36m

Deal found 28/10£700

Wed 30/1205:15 -

2 stops19h 15m

Thu 14/115:00 -

2 stops27h 01m

Deal found 29/10£709

Tue 1/1206:35 -

1 stop17h 20m

Tue 22/1207:40 -

1 stop15h 14m

Deal found 2/11£711

Wed 30/1211:50 -

2 stops17h 30m

Wed 13/113:50 -

2 stops36h 55m

Deal found 30/10£712

Find flight deals from San Antonio to Heathrow

Round-trip from	£652
One-way from	£244
Popular in	June
Cheapest in	March
Average price	£762

Lufthansa
21/4-28/4
4 total stops
33h 53m total
San Antonio to London

Search Deals

British Airways
15/2-31/12
1 total stop
12h 03m total
San Antonio to London

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£70 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Cheapflights Fare Finder

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 San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sun 4/4

08:00-06:20

2 stops16h 20m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£252

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Tue 16/2

05:15-11:15

3 stops24h 00m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£252

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sun 25/4

16:00-13:15

2 stops15h 15m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£252

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sun 4/4

16:45-12:35

1 stop13h 50m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£252

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 15/2

06:20-07:15

2 stops18h 55m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£252

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sun 14/2

14:19-10:50

2 stops14h 31m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£252

Fastest return journey

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 17/2

13:05-08:05

1 stop13h 00m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£252

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sat 13/2

16:18-21:20

2 stops23h 02m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£252

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 28/12

20:30-12:50

3 stops58h 20m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£347

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 30/12

11:09-09:00

1 stop15h 51m

London Heathrow

Wed 13/1

10:00-00:45

2 stops20h 45m

£690

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 18 resultsSorted by cheapest first

Best time to book a flight from San Antonio to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Antonio with our price prediction graph.

SAT-LHR

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 San Antonio to London Heathrow Airport

Prices

The price you pay for your flight from San Antonio to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 32 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Antonio to London Heathrow Airport?

Currently, March is the cheapest month in which you can book a flight from San Antonio to London Heathrow Airport (average of £653). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of £957). 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.

Related info for your journey

What airport do you fly from for flights from San Antonio to London Heathrow?
San Antonio (SAT), located 7.6 mi from the city center, is the airport you fly out of when you book flights from San Antonio to London Heathrow. 0 airlines have flights from San Antonio to London Heathrow on a regular basis. Booking flights from San Antonio to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.
How long is the flight from San Antonio to London Heathrow Airport?
A quick flight from San Antonio to London Heathrow Airport can take about 21h 53m. Delta provides one of the quickest options available for as low as £692. The distance from San Antonio to London Heathrow Airport is about 4967 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from San Antonio to Heathrow that include hotel bookings?
Yes. In addition to deals on San Antonio to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from San Antonio to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Heathrow.
Can I find deals for business class flights from San Antonio to Heathrow?
Yes. Cheapflights offers flight deals from San Antonio 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 San Antonio to London Heathrow Airport?
Currently, March is the cheapest month in which you can book a flight from San Antonio to London Heathrow Airport (average of £653). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of £957). 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.

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Antonio to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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Can Cheapflights notify me if prices for flights from San Antonio to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on San Antonio to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from San Antonio to London Heathrow Airport from £244

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San Antonio to Heathrow

Cheapest flights from San Antonio to HeathrowExplore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Explore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Best flights from San Antonio to HeathrowDiscover carefully curated flight deals from San Antonio to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 November 2026.

Discover carefully curated flight deals from San Antonio to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 November 2026.

Last-minute flights from San Antonio to HeathrowDiscover last-minute flight deals from San Antonio to Heathrow. Data last updated 2 November 2026 and is based on user searches.

Discover last-minute flight deals from San Antonio to Heathrow. Data last updated 2 November 2026 and is based on user searches.

One-way flights from San Antonio to HeathrowSearch for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated 2 November 2026.

Search for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated 2 November 2026.

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

Best time to book a flight from San Antonio to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Antonio with our price prediction graph.

Cheapflights Insights

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

The price you pay for your flight from San Antonio to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 32 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Antonio to London Heathrow Airport?

What’s the top stopover airport for flights from San Antonio to London Heathrow Airport?

Houston (IAH) – chosen by Cheapflights users on 75% of one-stop itineraries from San Antonio to London Heathrow Airport on Cheapflights.

What’s the cheapest stopover airport for flights from San Antonio to London Heathrow Airport?

Atlanta (ATL) is the most affordable one-stop option, with an average return flight price of £470.

What’s the fastest stopover option from San Antonio to London Heathrow Airport?

Flights via Atlanta (ATL) have the shortest average one-way travel time for one-stop routes: 10h 45m.

Which airport typically offers the quickest stopover for flights from San Antonio to London Heathrow Airport?

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average stopover time of 1h 04m.

Related info for your journey

What airport do you fly from for flights from San Antonio to London Heathrow?

How long is the flight from San Antonio to London Heathrow Airport?

Can I find deals for flights from San Antonio to Heathrow that include hotel bookings?

How can I find direct flights from San Antonio to Heathrow?

Can I find deals for business class flights from San Antonio to Heathrow?

What is the cheapest month to book a flight from San Antonio to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

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How does Cheapflights help users find flights from San Antonio to Heathrow?

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Can Cheapflights find flights from San Antonio to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from San Antonio to Heathrow become cheaper?

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Cheapest flights from San Antonio to Heathrow
Explore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Best flights from San Antonio to Heathrow
Discover carefully curated flight deals from San Antonio to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 November 2026.

Last-minute flights from San Antonio to Heathrow
Discover last-minute flight deals from San Antonio to Heathrow. Data last updated 2 November 2026 and is based on user searches.

One-way flights from San Antonio to Heathrow
Search for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated 2 November 2026.