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 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.

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 £475.

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.

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 11h 34m. Delta provides one of the quickest options available for as low as £752. 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.

£259+ 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.

Cheapest

Best

Last-minute

One-way

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 10 October 2026.

Tue 24/1116:32 -

1 stop13h 08m

Mon 30/1110:50 -

1 stop17h 16m

Deal found 5/10£654

Tue 17/1111:22 -

1 stop16h 38m

Mon 23/1119:40 -

2 stops18h 54m

Deal found 9/10£686

Wed 30/1214:45 -

1 stop13h 40m

Thu 14/107:30 -

2 stops19h 27m

Deal found 9/10£687

Tue 10/1107:40 -

1 stop19h 20m

Tue 24/1108:40 -

2 stops18h 46m

Deal found 8/10£689

Wed 30/1213:00 -

1 stop11h 25m

Wed 13/108:40 -

2 stops18h 12m

Deal found 9/10£690

Wed 30/1211:47 -

1 stop13h 58m

Thu 14/108:40 -

2 stops18h 12m

Deal found 8/10£690

Wed 2/1210:54 -

2 stops16h 31m

Wed 16/1211:30 -

2 stops19h 05m

Deal found 7/10£697

Mon 30/1105:30 -

2 stops19h 40m

Wed 9/1213:00 -

2 stops29h 20m

Deal found 6/10£698

Find flight deals from San Antonio to Heathrow

Round-trip from	£648
One-way from	£259
Popular in	June
Cheapest in	March
Average price	£728

Iberia
11/1-19/1
3 total stops
49h 23m total
San Antonio to London

Search Deals

Air Canada
8/1-31/12
2 total stops
49h 00m total
San Antonio to London

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£75 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 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

Fri 8/1

05:30-06:25

1 stop18h 55m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£289

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 2/11

07:15-08:05

2 stops18h 50m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£323

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sat 7/11

14:56-08:05

2 stops35h 09m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£339

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 9/11

22:29-12:50

3 stops56h 21m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£347

Fastest return journey

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 2/11

14:20-07:40

1 stop11h 20m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£350

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 9/11

05:30-07:40

1 stop20h 10m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£350

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sat 7/11

16:19-07:40

1 stop33h 21m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£359

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sun 25/10

06:15-09:10

1 stop21h 55m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£367

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 26/10

07:50-07:50

1 stop19h 00m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£369

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 26/10

07:50-07:45

2 stops18h 55m

London Heathrow

Tue 10/11

11:45-22:54

2 stops17h 09m

£730

Flights are sorted by cheapest return flights first.

Deals found on 7/10

Showing 1-10 of 20 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 £660). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of £968). 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.

How much does it cost for a return flight from San Antonio to London Heathrow Airport?

Airfare is typical for this route at the moment.

San Antonio to London Heathrow Airport flights typically cost between £647 and £944 in January.
The cheapest return price found within the last 5 days was £648 on Iberia (11 Jan–19 Jan).

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 11h 34m. Delta provides one of the quickest options available for as low as £752. 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 £660). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of £968). 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.

See more FAQs

Hounslow

Milton Keynes

Luton

Slough

Wembley

Gatwick

Ilford

Hayes

Croydon

Colchester

Northampton

Eastbourne

Enfield

Brentford

Southend-on-Sea

Barnet

Southall

Watford

Stratford-upon-Avon

Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

Heathrow flight routes

Other flight options

Popular flights

Alternative routes for San Antonio to Heathrow

Dallas/Fort Worth to Heathrow flights

Hobby to Heathrow flights

George Bush Intcntl to Heathrow flights

Hobby to Gatwick flights

Dallas/Fort Worth to Gatwick flights

Austin to Heathrow flights

Dallas/Fort Worth to Stansted flights

George Bush Intcntl to Gatwick flights

Dallas/Fort Worth to London City flights

Austin to Gatwick flights

Dallas/Fort Worth to Luton flights

Austin to Stansted flights

Austin to London City flights

El Paso to Heathrow flights

San Antonio to Gatwick flights

San Antonio to Stansted flights

El Paso to Gatwick flights

Harlingen to Heathrow flights

Midland to Heathrow flights

McAllen to Gatwick flights

Lubbock to Heathrow flights

Killeen to Heathrow flights

Corpus Christi to Heathrow flights

McAllen to Heathrow flights

Austin to Southend flights

San Angelo to Heathrow flights

Dallas/Fort Worth to Southend flights

Brownsville to Heathrow flights

College Station to Heathrow flights

Fly with Cheapflights

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

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.

Why should you use Cheapflights to find cheap flight tickets from San Antonio to Heathrow?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Antonio to Heathrow for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily 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?

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from San Antonio to London Heathrow Airport from £259

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/1. 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 10 October 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 10 October 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 10 October 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 10 October 2026.

Last-minute flights from San Antonio to HeathrowDiscover last-minute flight deals from San Antonio to Heathrow. Data last updated 10 October 2026 and is based on user searches.

Discover last-minute flight deals from San Antonio to Heathrow. Data last updated 10 October 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 10 October 2026.

Search for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.

Find flight deals from San Antonio to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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?

How much does it cost for a return flight from San Antonio to London Heathrow Airport?

Airfare is typical for this route at the moment.

San Antonio to London Heathrow Airport flights typically cost between £647 and £944 in January.The cheapest return price found within the last 5 days was £648 on Iberia (11 Jan–19 Jan).

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 £475.

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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Antonio to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from San Antonio to Heathrow by cabin class

Find flights from San Antonio to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 October 2026.

San Antonio and Heathrow flights

Browse other San Antonio and Heathrow flight options. Last updated on 10 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

Why should you use Cheapflights to find cheap flight tickets from San Antonio to Heathrow?

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?

100% Free

Book with Flexibility

Travel Smart

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 10 October 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 10 October 2026.

Last-minute flights from San Antonio to Heathrow
Discover last-minute flight deals from San Antonio to Heathrow. Data last updated 10 October 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 10 October 2026.

San Antonio to London Heathrow Airport flights typically cost between £647 and £944 in January.
The cheapest return price found within the last 5 days was £648 on Iberia (11 Jan–19 Jan).