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Cheap flights from San Antonio to London Heathrow Airport from £310

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 26/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LHR
22 Jan — 29 Jan1
1 adult

The best prices from San Antonio to London Heathrow are usually found in February or March, booked 51 days in advance, depart on a Monday or Tuesday and return on a Saturday

Cheap flight deals from San Antonio to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Heathrow (LHR). 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 17 January 2025.

Round-trip from

£549

One-way from

£310

Popular in

June

Cheapest in

February

Average price

£632
Scandinavian Airlines
  • Scandinavian Airlines
  • 4/2-4/3
  • 4 total stops
  • 61h 49m total
  • San Antonio to London
Scandinavian Airlines
  • Scandinavian Airlines
  • 26/2
  • 2 total stops
  • 28h 40m total
  • San Antonio to London
High demand for flights, 19% potential price rise
Best time to find cheap flights, 4% potential price drop
Average for round-trip flights in January 2025

Find flight deals from San Antonio to Heathrow

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 17 January 2025.

Tue 4/207:00SAT - LHR
2 stops28h 40mScandinavian Airlines
Tue 4/318:40LHR - SAT
2 stops33h 09mScandinavian Airlines
Deal found 16/1£549
Wed 30/416:04SAT - LHR
1 stop12h 51mBritish Airways
Wed 7/514:55LHR - SAT
1 stop14h 41mBritish Airways
Deal found 17/1£583
Mon 10/217:48SAT - LHR
1 stop11h 17mUnited Airlines
Tue 18/215:00LHR - SAT
2 stops38h 10mUnited Airlines
Deal found 16/1£586
Wed 5/305:25SAT - LHR
1 stop19h 25mDelta
Wed 12/306:30LHR - SAT
2 stops18h 52mDelta
Deal found 16/1£594
Tue 4/214:36SAT - LHR
1 stop15h 29mFinnair
Tue 4/308:20LHR - SAT
1 stop16h 22mFinnair
Deal found 16/1£598
Wed 5/312:22SAT - LHR
1 stop12h 43mKLM
Wed 12/309:10LHR - SAT
1 stop17h 17mKLM
Deal found 16/1£605
Wed 24/914:38SAT - LHR
1 stop12h 22mIberia
Wed 8/1016:25LHR - SAT
1 stop13h 17mIberia
Deal found 16/1£607
Wed 30/409:35SAT - LHR
3 stops18h 25mMultiple Airlines
Wed 7/512:40LHR - SAT
2 stops16h 19mMultiple Airlines
Deal found 17/1£612
Sun 2/311:03SAT - LHR
1 stop14h 52mVirgin Atlantic
Sun 9/307:45LHR - SAT
1 stop20h 56mVirgin Atlantic
Deal found 16/1£625
Sun 20/407:00SAT - LHR
2 stops21h 00mAir Canada
Sun 4/509:30LHR - SAT
2 stops19h 07mAir Canada
Deal found 16/1£648
Wed 21/507:30SAT - LHR
1 stop17h 25mLufthansa
Wed 27/812:15LHR - SAT
1 stop13h 21mLufthansa
Deal found 16/1£664
Sun 20/412:15SAT - LHR
2 stops37h 50mAir France
Sat 3/506:15LHR - SAT
2 stops24h 18mAir France
Deal found 17/1£763

Find flights from San Antonio to Heathrow within your budget

Customise your flight search to find flights from San Antonio to Heathrow 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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 4/2

07:00-17:40

2 stops28h 40m

London Heathrow

Tue 4/3

18:40-21:49

2 stops33h 09m

£549

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 30/4

16:04-10:55

1 stop12h 51m

London Heathrow

Wed 7/5

14:55-23:36

1 stop14h 41m

£583

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 10/2

17:48-11:05

1 stop11h 17m

London Heathrow

Tue 18/2

15:00-23:10

2 stops38h 10m

£586

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 5/3

05:25-06:50

1 stop19h 25m

London Heathrow

Wed 12/3

06:30-20:22

2 stops18h 52m

£594

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 4/2

14:36-12:05

1 stop15h 29m

London Heathrow

Tue 4/3

08:20-18:42

1 stop16h 22m

£598

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 5/3

12:22-07:05

1 stop12h 43m

London Heathrow

Wed 12/3

09:10-21:27

1 stop17h 17m

£605

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 30/4

09:35-10:00

3 stops18h 25m

London Heathrow

Wed 7/5

12:40-22:59

2 stops16h 19m

£612

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 10/3

14:32-07:20

1 stop11h 48m

London Heathrow

Mon 17/3

08:20-20:47

1 stop17h 27m

£620

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 2/3

11:03-07:55

1 stop14h 52m

London Heathrow

Sun 9/3

07:45-22:41

1 stop20h 56m

£625

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 20/4

07:00-10:00

2 stops21h 00m

London Heathrow

Sun 4/5

09:30-22:37

2 stops19h 07m

£648

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 23 results
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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.
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.

Travel insights for flights from San Antonio to Heathrow

Get recent, data-driven insights about flights from San Antonio to Heathrow including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from San Antonio to Heathrow. Price data was last updated on 10 January 2025.

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 51 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, January is the cheapest month in which you can book a flight from San Antonio to London Heathrow Airport (average of £112). Flying from San Antonio to London Heathrow Airport in August is currently the most expensive (average of £161). 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 SAT to LHR?

Find hourly flight availability from San Antonio to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

When flying from San Antonio to London Heathrow Airport, 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 10% versus a flight in the morning.

Rainfall in Heathrow by month

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

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.

Temperature in Heathrow by month

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

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).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 17 January 2025.
Read reviews from past customers who have flown Scandinavian Airlines, Lufthansa and British Airways from San Antonio to London. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,513 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

8.0
Very Good
8,513 reviews
8.0
Very Good
8,513 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.8
Good
1,339 reviews
8.0
Very Good
8,513 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.6
Good
1,285 reviews
8.0
Very Good
8,513 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.5
Good
664 reviews
8.0
Very Good
8,513 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.4
Good
1,487 reviews
8.0
Very Good
8,513 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Heathrow. 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 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. 1 airline 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.

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

    Scandinavian Airlines, at £549, was found to be the cheapest airline from San Antonio to London Heathrow Airport.Alternate airlines flying return to your destination include British Airways and United Airlines. Scandinavian Airlines is priced at 28% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Scandinavian Airlines, which is currently one of the cheapest options available, starting at £310. British Airways flights start at £381 while deals on Delta start at £387 one-way.

  • 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, January is the cheapest month in which you can book a flight from San Antonio to London Heathrow Airport (average of £112). Flying from San Antonio to London Heathrow Airport in August is currently the most expensive (average of £161). 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

Travelling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
Deal
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Gatwick
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Croydon
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Hayes
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Northampton
Swindon
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Southend-on-Sea
Wembley
Ipswich
Watford
Crawley
Southall

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from San Antonio to Heathrow

Discover the top airline that operate flights from San Antonio to Heathrow. 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 17 January 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£533Average£1,010FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

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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.

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