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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
19 Jun — 26 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 14 June 2025.

Round-trip from

£636

One-way from

£366

Popular in

August

Cheapest in

November

Average price

£807
Scandinavian Airlines
  • Scandinavian Airlines
  • 26/9-7/10
  • 5 total stops
  • 43h 53m 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 (£74 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£21 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 14 June 2025.

Fri 26/906:40LHR - SAT
2 stops21h 43mScandinavian Airlines
Tue 7/1012:15SAT - LHR
3 stops22h 10mScandinavian Airlines
Deal found 13/6£636
Tue 2/915:05LHR - SAT
3 stops43h 59mMultiple Airlines
Thu 4/909:00SAT - LHR
2 stops20h 55mMultiple Airlines
Deal found 13/6£638
Fri 26/917:40LHR - SAT
2 stops24h 18mLufthansa
Tue 7/1013:04SAT - LHR
1 stop16h 41mLufthansa
Deal found 13/6£653
Wed 5/1112:10LHR - SAT
1 stop15h 19mVirgin Atlantic
Sun 9/1115:00SAT - LHR
1 stop33h 25mVirgin Atlantic
Deal found 13/6£664
Wed 5/1106:15LHR - SAT
2 stops23h 15mIberia
Sun 9/1114:39SAT - LHR
1 stop33h 41mIberia
Deal found 13/6£670
Fri 26/908:20LHR - SAT
1 stop15h 23mFinnair
Tue 7/1014:42SAT - LHR
1 stop12h 18mFinnair
Deal found 12/6£678
Thu 11/909:55LHR - SAT
2 stops16h 24mDelta
Sat 28/306:45SAT - LHR
1 stop19h 05mDelta
Deal found 13/6£732
Mon 14/716:25LHR - SAT
1 stop13h 33mBritish Airways
Thu 31/717:20SAT - LHR
1 stop11h 30mBritish Airways
Deal found 13/6£828
Tue 24/614:05LHR - SAT
2 stops31h 50mAir Canada
Tue 1/706:45SAT - LHR
2 stops21h 15mAir Canada
Deal found 13/6£853
Tue 8/708:30LHR - SAT
2 stops33h 15mUnited Airlines
Sat 2/808:55SAT - LHR
2 stops16h 00mUnited Airlines
Deal found 13/6£859
Fri 26/1216:30LHR - SAT
1 stop13h 16mAmerican Airlines
Tue 6/112:29SAT - LHR
1 stop11h 51mAmerican Airlines
Deal found 12/6£877
Thu 7/809:20LHR - SAT
1 stop13h 47mKLM
Sat 16/815:30SAT - LHR
1 stop11h 25mKLM
Deal found 12/6£931

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 14 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

06:40-22:23

2 stops21h 43m

San Antonio

Tue 7/10

12:15-16:25

3 stops22h 10m

£636

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 2/9

15:05-05:04

3 stops43h 59m

San Antonio

Thu 4/9

09:00-11:55

2 stops20h 55m

£638

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 26/9

17:40-11:58

2 stops24h 18m

San Antonio

Tue 7/10

13:04-11:45

1 stop16h 41m

£653

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 5/11

12:10-21:29

1 stop15h 19m

San Antonio

Sun 9/11

15:00-06:25

1 stop33h 25m

£664

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 5/11

06:15-23:30

2 stops23h 15m

San Antonio

Sun 9/11

14:39-06:20

1 stop33h 41m

£670

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 26/9

08:20-17:43

1 stop15h 23m

San Antonio

Tue 7/10

14:42-09:00

1 stop12h 18m

£678

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 11/9

09:55-20:19

2 stops16h 24m

San Antonio

Sat 28/3

06:45-06:50

1 stop19h 05m

£732

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 14/7

16:25-23:58

1 stop13h 33m

San Antonio

Thu 31/7

17:20-10:50

1 stop11h 30m

£828

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 24/6

14:05-15:55

2 stops31h 50m

San Antonio

Tue 1/7

06:45-10:00

2 stops21h 15m

£853

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 8/7

08:30-11:45

2 stops33h 15m

San Antonio

Sat 2/8

13:43-12:20

1 stop16h 37m

£859

Flights are sorted by cheapest return flights first.

Deals found on 12/6

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 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 14 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 14 June 2025.
Read through reviews of airlines operating flights from London to San Antonio, such as Delta, Alaska Airlines and KLM. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

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

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

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!

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

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!

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

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!

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

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!

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

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 (£636), Lufthansa (£653), and Virgin Atlantic (£664) offers the cheapest pricing from London Heathrow Airport to San Antonio. These flights start at 11% 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 British Airways, with whom users have recently found tickets for as low as £673. However, be on the lookout for offers from Aer Lingus and Finnair, 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 14 June 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£503Average£602FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£528Average£799FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Scandinavian AirlinesCheapest£590Average£705FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£659Average£836FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£667Average£811FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£698Average£886FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£733Average£994FlexibilityNo 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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