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Cheap flights from London Heathrow Airport to San Antonio from £366

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from London Heathrow to San Antonio are usually found in November or September, booked 79 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 13 June 2025.

Round-trip from

£654

One-way from

£366

Popular in

August

Cheapest in

November

Average price

£805
Scandinavian Airlines
  • Scandinavian Airlines
  • 26/9-7/10
  • 6 total stops
  • 45h 55m total
  • London to San Antonio
2/9
  • 2/9
  • 3 total stops
  • 43h 59m total
  • London to San Antonio
Highest demand for flights based on searches. 12% potential increase in price (£73 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in June 2025

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 13 June 2025.

Fri 26/906:40LHR - SAT
3 stops23h 45mScandinavian Airlines
Tue 7/1012:15SAT - LHR
3 stops22h 10mScandinavian Airlines
Deal found 11/6£654
Wed 2/708:20LHR - SAT
1 stop34h 46mMultiple Airlines
Sat 12/719:52SAT - LHR
2 stops34h 43mMultiple Airlines
Deal found 10/6£662
Fri 26/910:30LHR - SAT
1 stop13h 13mFinnair
Tue 7/1014:42SAT - LHR
1 stop15h 48mFinnair
Deal found 11/6£676
Fri 26/910:55LHR - SAT
2 stops18h 23mVirgin Atlantic
Tue 7/1012:10SAT - LHR
1 stop13h 05mVirgin Atlantic
Deal found 11/6£692
Fri 26/906:30LHR - SAT
2 stops16h 46mDelta
Tue 7/1006:45SAT - LHR
1 stop18h 30mDelta
Deal found 11/6£697
Mon 23/612:00LHR - SAT
1 stop13h 48mBritish Airways
Mon 15/917:16SAT - LHR
1 stop13h 14mBritish Airways
Deal found 10/6£755
Fri 26/1216:30LHR - SAT
1 stop13h 16mAmerican Airlines
Tue 6/112:29SAT - LHR
1 stop11h 51mAmerican Airlines
Deal found 12/6£875
Fri 26/1211:55LHR - SAT
1 stop26h 24mIberia
Mon 5/114:43SAT - LHR
1 stop33h 37mIberia
Deal found 12/6£918
Thu 7/809:20LHR - SAT
1 stop13h 47mKLM
Sat 16/815:30SAT - LHR
1 stop11h 25mKLM
Deal found 12/6£929
Mon 14/709:30LHR - SAT
2 stops41h 27mAir Canada
Thu 31/706:45SAT - LHR
2 stops21h 15mAir Canada
Deal found 11/6£951
Wed 2/709:30LHR - SAT
3 stops20h 29mUnited Airlines
Sat 19/712:13SAT - LHR
2 stops14h 07mUnited Airlines
Deal found 11/6£973
Sun 27/709:15LHR - SAT
1 stop14h 23mAlaska Airlines
Sun 3/816:43SAT - LHR
1 stop34h 42mAlaska Airlines
Deal found 12/6£1,099

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 13 June 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

Fri 26/9

06:40-00:25

3 stops23h 45m

San Antonio

Tue 7/10

12:15-16:25

3 stops22h 10m

£654

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 2/7

08:20-13:06

1 stop34h 46m

San Antonio

Sat 12/7

19:52-12:35

2 stops34h 43m

£662

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 26/9

13:05-22:23

1 stop15h 18m

San Antonio

Tue 7/10

12:15-06:45

1 stop12h 30m

£670

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 26/9

10:30-17:43

1 stop13h 13m

San Antonio

Tue 7/10

14:42-12:30

1 stop15h 48m

£676

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 26/9

06:30-17:16

2 stops16h 46m

San Antonio

Tue 7/10

06:45-07:15

1 stop18h 30m

£697

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 23/6

12:00-19:48

1 stop13h 48m

San Antonio

Mon 15/9

17:16-12:30

1 stop13h 14m

£755

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 7/8

09:20-17:07

1 stop13h 47m

San Antonio

Sat 16/8

15:30-08:55

1 stop11h 25m

£929

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 14/7

09:30-20:57

2 stops41h 27m

San Antonio

Thu 31/7

06:45-10:00

2 stops21h 15m

£951

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 2/7

09:30-23:59

3 stops20h 29m

San Antonio

Sat 19/7

12:13-08:20

2 stops14h 07m

£973

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 27/7

09:15-17:38

1 stop14h 23m

San Antonio

Sun 3/8

16:43-09:25

1 stop34h 42m

£1,099

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 23 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 9 June 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 13 June 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 13 June 2025.

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 (£654), Virgin Atlantic (£662), and Iberia (£669) offers the cheapest pricing from London Heathrow Airport to San Antonio. These flights start at 8% 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 WestJet, with whom users have recently found tickets for as low as £582. However, be on the lookout for offers from British Airways and Aer Lingus, 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?

  • 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 £23 to make sightseeing during their stopover a little easier.

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

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£502Average£601FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£527Average£798FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Scandinavian AirlinesCheapest£589Average£704FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£658Average£835FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£665Average£809FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£696Average£884FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£731Average£992FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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

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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.

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