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Cheap flights from London Heathrow Airport to San Antonio from £296

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 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from London Heathrow to San Antonio are usually found in November or September, 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 15 April 2025.

Round-trip from

£545

One-way from

£296

Popular in

August

Cheapest in

November

Average price

£780
5/5-13/5
  • 5/5-13/5
  • 2 total stops
  • 39h 05m total
  • London to San Antonio
Search Deals
26/4
  • 26/4
  • 3 total stops
  • 43h 01m total
  • London to San Antonio
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£77 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 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 15 April 2025.

Thu 8/513:35LHR - SAT
1 stop30h 07mMultiple Airlines
Mon 12/506:45SAT - LHR
1 stop28h 30mMultiple Airlines
Deal found 15/4£509
Wed 30/408:30LHR - SAT
2 stops20h 48mAir Canada
Mon 5/505:30SAT - LHR
2 stops24h 20mAir Canada
Deal found 14/4£619
Wed 14/510:20LHR - SAT
2 stops19h 22mScandinavian Airlines
Thu 25/916:10SAT - LHR
2 stops23h 30mScandinavian Airlines
Deal found 14/4£685
Tue 27/512:15LHR - SAT
1 stop14h 07mUnited Airlines
Fri 5/912:10SAT - LHR
1 stop12h 35mUnited Airlines
Deal found 14/4£737
Wed 24/910:30LHR - SAT
1 stop14h 23mBritish Airways
Tue 30/912:27SAT - LHR
1 stop11h 58mBritish Airways
Deal found 14/4£748
Wed 7/511:30LHR - SAT
2 stops18h 28mIberia
Mon 12/515:15SAT - LHR
1 stop13h 15mIberia
Deal found 14/4£781
Wed 14/506:30LHR - SAT
2 stops16h 50mDelta
Thu 25/912:15SAT - LHR
1 stop12h 30mDelta
Deal found 14/4£787
Wed 23/408:20LHR - SAT
1 stop15h 58mAmerican Airlines
Tue 20/515:15SAT - LHR
1 stop13h 15mAmerican Airlines
Deal found 14/4£796
Fri 26/917:40LHR - SAT
2 stops24h 10mLufthansa
Tue 7/1016:22SAT - LHR
1 stop13h 13mLufthansa
Deal found 14/4£810
Fri 25/409:20LHR - SAT
1 stop14h 09mKLM
Sun 18/518:19SAT - LHR
1 stop13h 11mKLM
Deal found 14/4£856
Thu 12/612:25LHR - SAT
1 stop14h 58mAir France
Tue 24/618:11SAT - LHR
1 stop13h 19mAir France
Deal found 14/4£944
Fri 30/515:15LHR - SAT
1 stop15h 13mVirgin Atlantic
Fri 6/618:09SAT - LHR
1 stop13h 21mVirgin Atlantic
Deal found 14/4£949

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 15 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

Thu 8/5

13:35-13:42

1 stop30h 07m

San Antonio

Mon 12/5

06:45-17:15

1 stop28h 30m

£509

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 30/4

08:30-23:18

2 stops20h 48m

San Antonio

Mon 5/5

05:30-11:50

2 stops24h 20m

£619

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 14/5

10:20-23:42

2 stops19h 22m

San Antonio

Thu 25/9

16:10-21:40

2 stops23h 30m

£685

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 27/5

12:15-20:22

1 stop14h 07m

San Antonio

Fri 5/9

12:10-06:45

1 stop12h 35m

£737

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 24/9

10:30-18:53

1 stop14h 23m

San Antonio

Tue 30/9

12:27-06:25

1 stop11h 58m

£748

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 7/5

11:30-23:58

2 stops18h 28m

San Antonio

Mon 12/5

15:15-10:30

1 stop13h 15m

£781

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 14/5

06:30-17:20

2 stops16h 50m

San Antonio

Thu 25/9

12:15-06:45

1 stop12h 30m

£787

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 29/4

10:30-19:46

1 stop15h 16m

San Antonio

Mon 19/5

18:05-12:30

1 stop12h 25m

£796

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 26/9

17:40-11:50

2 stops24h 10m

San Antonio

Tue 7/10

14:20-10:10

2 stops13h 50m

£810

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 25/4

13:05-20:28

1 stop13h 23m

San Antonio

Sat 17/5

18:08-13:30

1 stop13h 22m

£856

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 22 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 11 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 15 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 15 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
7,916 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

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
7,916 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

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
1,323 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

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
1,269 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

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
7.5
Good
1,435 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

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
8,656 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

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 (£685), United Airlines (£737), and British Airways (£765) offers the cheapest pricing from London Heathrow Airport to San Antonio. These flights start at 3% 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 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?

    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 £25 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

Browse thousands of different options on Cheapflights for your next trip

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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 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£519Average£631FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£545Average£824FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Scandinavian AirlinesCheapest£608Average£799FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£669Average£854FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£687Average£833FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£719Average£890FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£755Average£1,024FlexibilityNo 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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Why should you use Cheapflights to find cheap flight tickets from Heathrow to San Antonio?

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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