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Cheap flights from London Heathrow Airport to San Antonio from £358

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
5 May — 12 May1
1 adult

Cheapflights Tip: The best prices from London Heathrow to San Antonio are usually found in November or March, booked 84 days in advance, depart on a Saturday or Wednesday and return on a Monday

Cheap flight deals from Heathrow to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 April 2025.

Round-trip from

£594

One-way from

£358

Popular in

August

Cheapest in

November

Average price

£766
9/6-23/6
  • 9/6-23/6
  • 4 total stops
  • 45h 49m total
  • London to San Antonio
Search Deals
19/8
  • 19/8
  • 3 total stops
  • 26h 04m total
  • London to San Antonio
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£74 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Heathrow to San Antonio

Cheapest flights from Heathrow to San Antonio
Explore the most affordable flight options available from Heathrow to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Mon 9/613:50LHR - SAT
2 stops21h 14mMultiple Airlines
Mon 23/610:00SAT - LHR
2 stops24h 35mMultiple Airlines
Deal found 29/4£594
Mon 9/606:40LHR - SAT
2 stops23h 37mScandinavian Airlines
Mon 16/611:48SAT - LHR
2 stops27h 52mScandinavian Airlines
Deal found 29/4£688
Mon 8/912:25LHR - SAT
1 stop15h 04mDelta
Wed 24/912:15SAT - LHR
1 stop12h 30mDelta
Deal found 29/4£802
Fri 26/910:30LHR - SAT
1 stop13h 12mBritish Airways
Tue 7/1017:30SAT - LHR
1 stop11h 20mBritish Airways
Deal found 29/4£815
Wed 30/413:25LHR - SAT
2 stops16h 33mAer Lingus
Wed 7/506:15SAT - LHR
2 stops22h 55mAer Lingus
Deal found 29/4£873
Mon 9/616:05LHR - SAT
1 stop24h 39mVirgin Atlantic
Mon 23/611:48SAT - LHR
1 stop15h 02mVirgin Atlantic
Deal found 29/4£881
Mon 9/608:20LHR - SAT
1 stop15h 28mFinnair
Mon 23/614:15SAT - LHR
1 stop16h 30mFinnair
Deal found 29/4£899
Mon 30/609:30LHR - SAT
3 stops19h 23mUnited Airlines
Sun 6/716:17SAT - LHR
1 stop33h 23mUnited Airlines
Deal found 29/4£937
Fri 17/1017:40LHR - SAT
2 stops24h 10mLufthansa
Fri 24/1006:48SAT - LHR
1 stop17h 32mLufthansa
Deal found 29/4£954
Sun 29/609:30LHR - SAT
2 stops37h 08mAir Canada
Sun 6/707:00SAT - LHR
2 stops17h 30mAir Canada
Deal found 29/4£980
Tue 1/722:25LHR - SAT
2 stops30h 34mTurkish Airlines
Sat 5/717:56SAT - LHR
2 stops20h 54mTurkish Airlines
Deal found 29/4£1,267
Tue 1/711:45LHR - SAT
1 stop16h 26mAir France
Fri 4/718:11SAT - LHR
1 stop13h 19mAir France
Deal found 29/4£1,476

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to San Antonio 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, Cheapflights users made 858,174 searches. Data last updated 30 April 2025.
Use the filters below to find and compare flights from London Heathrow Airport to San Antonio that are best for you.

Fly from

Heathrow

Fly to

San Antonio

Route

Depart

Return

Price

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 9/6

13:50-05:04

2 stops21h 14m

San Antonio

Mon 23/6

10:00-16:35

2 stops24h 35m

£594

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 9/6

06:40-00:17

2 stops23h 37m

San Antonio

Mon 16/6

11:48-21:40

2 stops27h 52m

£688

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 8/9

12:25-21:29

1 stop15h 04m

San Antonio

Wed 24/9

12:15-06:45

1 stop12h 30m

£802

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 26/9

10:30-17:42

1 stop13h 12m

San Antonio

Tue 7/10

17:30-10:50

1 stop11h 20m

£815

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 9/6

16:05-10:44

1 stop24h 39m

San Antonio

Mon 23/6

11:48-08:50

1 stop15h 02m

£881

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 9/6

08:20-17:48

1 stop15h 28m

San Antonio

Mon 23/6

14:15-12:45

1 stop16h 30m

£899

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 30/6

09:30-11:02

2 stops31h 32m

San Antonio

Sun 6/7

17:56-07:40

1 stop31h 44m

£937

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 17/10

17:40-11:50

2 stops24h 10m

San Antonio

Fri 24/10

06:48-06:20

1 stop17h 32m

£954

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 29/6

09:30-16:38

2 stops37h 08m

San Antonio

Sun 6/7

07:00-06:30

2 stops17h 30m

£980

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 14/7

09:50-23:57

2 stops20h 07m

San Antonio

Fri 18/7

13:25-18:20

2 stops22h 55m

£1,045

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Heathrow to San Antonio

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

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

Use this chart to determine the optimal time to book a return flight from Heathrow to San Antonio. Price data was last updated on 25 April 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to San Antonio, you should look to book at least 79 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of £732). Flying from London Heathrow Airport to San Antonio in August is currently the most expensive (average of £1,125). 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.

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

Find hourly flight availability from Heathrow to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 April 2025.

When flying from London Heathrow Airport to San Antonio, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 18% versus a flight in the evening.

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Antonio ranges from 41.0 - 95.0 inches per month. May is typically the wettest month, when rainfall can reach 95.0 mm. December is typically the driest time to visit San Antonio when rainfall is around 41.0 mm.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Antonio, 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 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated 30 April 2025.
Read through reviews of airlines operating flights from London to San Antonio, such as Delta, KLM and Finnair. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Heathrow to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    If you book a flight to San Antonio from London Heathrow, you will be flying to San Antonio, which is the city’s only airport. San Antonio (SAT) is located 7.6 mi from the center of San Antonio. There are 0 flights from London Heathrow to San Antonio per day from 7 different airlines.

  • What are the cheapest airlines flying from London Heathrow Airport to San Antonio round-trip?

    According to our current data, Scandinavian Airlines (£688), British Airways (£815), and Delta (£816) offers the cheapest pricing from London Heathrow Airport to San Antonio. These flights start at 1% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to San Antonio one-way?

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as £609. However, be on the lookout for offers from Iberia and Lufthansa, as they are both options that can get you from London Heathrow Airport to San Antonio for a low price.

  • Where are the most common stopover locations when flying from London Heathrow Airport to San Antonio?

    London Heathrow Airport to San Antonio flights have a stopover in Miami most of the time.

  • What are some popular things to do or see while on a stopover in Miami?

    Miami travellers tend to visit Bayfront Park, Kaseya Center, and Bayside Marketplace more than anywhere else. Bayfront Park, Kaseya Center, and Bayside Marketplace can be accessed by travelling approximately 6.4 mi, 6.2 mi, and 6.4 mi, respectively from Miami. Travellers can rent a car at Miami for an average daily rate of £26 to make sightseeing during their stopover a little easier.

  • Where are the least popular stopover locations for London Heathrow Airport to San Antonio flights?

    London Heathrow Airport to San Antonio flights have a stopover in Dallas least often.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to San Antonio 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 London Heathrow Airport to San Antonio?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of £732). Flying from London Heathrow Airport to San Antonio in August is currently the most expensive (average of £1,125). 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

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Alternative routes for Heathrow to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Heathrow to San Antonio

Discover the top 7 airlines that operate flights from Heathrow to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£508Average£615FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£534Average£808FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Scandinavian AirlinesCheapest£603Average£712FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£657Average£837FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£674Average£820FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£706Average£896FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£741Average£1,005FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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

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Cheapflights helps you find that perfect flight to San Antonio from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to San Antonio from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from Heathrow to San Antonio and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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