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Cheap Flights from London Heathrow to San Antonio International

Compare London Heathrow to San Antonio International flight deals

Find the cheapest month or even day of the year to fly to San Antonio International

Book the best San Antonio International fare with no extra fees

Flight deals from London Heathrow to San Antonio International

Looking for a cheap last-minute deal or the best return flight from London Heathrow to San Antonio International? Find the lowest prices on one-way and return tickets right here.
San Antonio.R 5,748 per passenger.Departing Tue, 9 Sep.One-way flight with Iberia.Outbound indirect flight with Iberia, departs from London Heathrow on Tue, 9 Sep, arriving in San Antonio International.Price includes taxes and charges.From R 5,748, select.
San Antonio.R 6,514 per passenger.Departing Thu, 28 Aug.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from London Heathrow on Thu, 28 Aug, arriving in San Antonio International.Price includes taxes and charges.From R 6,514, select.
San Antonio.R 9,093 per passenger.Departing Fri, 24 Oct.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from London Heathrow on Fri, 24 Oct, arriving in San Antonio International.Price includes taxes and charges.From R 9,093, select.
San Antonio.R 9,173 per passenger.Departing Tue, 4 Nov.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Tue, 4 Nov, arriving in San Antonio International.Price includes taxes and charges.From R 9,173, select.
San Antonio.R 11,167 per passenger.Departing Wed, 10 Dec.One-way flight with Iberia.Outbound indirect flight with Iberia, departs from London Heathrow on Wed, 10 Dec, arriving in San Antonio International.Price includes taxes and charges.From R 11,167, select.
San Antonio.R 11,699 per passenger.Departing Thu, 14 May.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Thu, 14 May, arriving in San Antonio International.Price includes taxes and charges.From R 11,699, select.
San Antonio.R 12,325 per passenger.Departing Tue, 8 Jul.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from London Heathrow on Tue, 8 Jul, arriving in San Antonio International.Price includes taxes and charges.From R 12,325, select.
San Antonio.R 15,827 per passenger.Departing Mon, 30 Jun.One-way flight with Avianca.Outbound indirect flight with Avianca, departs from London Heathrow on Mon, 30 Jun, arriving in San Antonio International.Price includes taxes and charges.From R 15,827, select.

Find the cheapest month to fly from London Heathrow to San Antonio International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to San Antonio International flights are currently cheapest in September.
Jun
from R 15,827
Jul
from R 12,325
Aug
from R 6,514
Sep
from R 5,748
Oct
from R 9,093
Nov
from R 9,173
Dec
from R 11,167
Jan
Find prices
Feb
from R 22,700
Mar
Find prices
Apr
Find prices
May
from R 11,699

London Heathrow to San Antonio International: Alternative routes

Compare routes from London Heathrow to San Antonio below. You may find an airport to fly into that's cheaper, faster, or easier than San Antonio International.

London to San Antonio: Flight information

The things to know before you go.
Cheapest flight foundR 5,748
Cheapest month to flySeptember

Finding cheap flights from London Heathrow to San Antonio International: Frequently asked questions

The best price we found for a return flight from London Heathrow to San Antonio International is R 12,768. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London Heathrow to San Antonio International. But we found flights with one or more stops from R 12,768.
As of June 2025, there are no flights flying from London Heathrow to San Antonio International.
The cheapest month to fly from London Heathrow to San Antonio International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to San Antonio International Airport on Wednesday, 17 September 2025.
No airlines currently offer direct flights between London Heathrow Airport and San Antonio International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Antonio International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Antonio is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, SWISS offers the cheapest flight tickets to San Antonio International.

Travelling from London Heathrow Airport (LHR) to San Antonio International Airport (SAT): what you need to know

  • San Antonio's timezone is UTC-5, which makes San Antonio five hours behind London.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to catch your LHR to SAT flight.

  • Flying during a peak month like July? Public holidays and other popular periods can mean longer queues and delays at check-in and security. Play things extra safe and arrive up to four hours before international flights and two hours before a domestic departure.

  • Consider adding a stopover when booking your ticket from London Heathrow Airport to San Antonio International Airport. Just deselect 'Direct flights only' to break up your trip, or even explore someplace new along the way. Here's where you can stop between LHR and SAT:

    • Dallas/Fort Worth International Airport

    • Charlotte Douglas International Airport

    • Hartsfield-Jackson Atlanta International Airport

How to find the cheapest flights from London Heathrow Airport (LHR) to San Antonio International Airport (SAT)

  • At the moment, R 5,748 is the lowest price we've seen for a one-way London Heathrow Airport to San Antonio International Airport flight. The best price for a return ticket is R 12,768. Bear in mind that fares may change due to demand when booking.

  • It's usually smart to book in advance if you want to find cheap tickets from LHR to SAT. That's because flight prices are based on demand, which tends to increase closer to the date of departure.

  • Getting cheap flights from London Heathrow Airport to San Antonio International Airport is easier if you can be flexible with your travel plans. Use the 'Whole month' tool to see the lowest prices across the month and bag a great deal.

  • Getting your hands on cheap flights from LHR to SAT is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when there's a better deal.

  • Find the ideal flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from London Heathrow Airport to San Antonio International Airport, use the 'Sort by' function. You can also filter by departure and arrival times, airline, and number of stops.

Handy information about London Heathrow Airport (LHR)

  • 68.18% of flights leaving from London Heathrow Airport land at their destination on time.

  • Central London to London Heathrow Airport is around 31 kilometres. Depending on traffic, it'll take about 55 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Catching public transport? You can expect a journey time of around 1 hour.

  • Get your journey off to a hassle-free start by staying near LHR. Whether you're taking an early flight from London Heathrow Airport to San Antonio International Airport or just don't like being rushed, these stays are ideal:

Arriving at San Antonio International Airport (SAT)

Getting from San Antonio International Airport (SAT) to central San Antonio

  • You'll find SAT at 9800 Airport Boulevard.

  • San Antonio International Airport is roughly 19 kilometres from central San Antonio. The drive time takes around 20 minutes.

  • Travelling by public transport takes around 1 hour 30 minutes.

When to fly to San Antonio International Airport (SAT)

  • The quietest month for a flight from London Heathrow Airport to San Antonio International Airport is April, while July is the most popular. Pick the ideal time to go to San Antonio based on whether you prefer a more relaxed vibe or a faster pace.

  • Book your flight from London Heathrow Airport to San Antonio International Airport for August if you want to go to San Antonio during its warmest month. You can expect temperatures of between 23ºC (73ºF) and 40ºC (104ºF).

  • January has average temperatures of between 3ºC (37ºF) and 20ºC (68ºF). Look for cheap tickets from LHR to SAT sometime around then if you like cooler conditions.

Explore more of United States

  • San Antonio has plenty to offer, but there are so many other corners of United States waiting to be explored. Around 306 kilometres east of San Antonio, a visit to Houston will keep you on the go. Start with leading attractions like The Houston Museum of Natural Science, The Museum of Fine Arts, Houston, Beck Building and Hermann Park.

  • Around 402 kilometres north-east of San Antonio, Dallas is another essential stop in United States. Experience this destination's highlights firsthand at Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art.

Plan the rest of your trip from London to San Antonio

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.