621 € Cheap Flights from San Antonio International to London

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Compare San Antonio International to London flight deals

Find the cheapest month or even day of the year to fly to London

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Flight deals from San Antonio International to London

Looking for a cheap last-minute deal or the best return flight from San Antonio International Airport to London? If you want to travel next month, return fares start from 644 €. Find the lowest prices on one-way and return tickets right here.

London.621 € per passenger.Departing Tue, 27 Oct, returning Tue, 3 Nov.Return flight with Iberia.Outbound indirect flight with Iberia, departs from San Antonio International on Tue, 27 Oct, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Tue, 3 Nov, arriving in San Antonio International.Price includes taxes and charges.From 621 €, select.

London.626 € per passenger.Departing Wed, 4 Nov, returning Wed, 11 Nov.Return flight with Iberia.Outbound indirect flight with Iberia, departs from San Antonio International on Wed, 4 Nov, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Wed, 11 Nov, arriving in San Antonio International.Price includes taxes and charges.From 626 €, select.

London.627 € per passenger.Departing Mon, 1 Feb, returning Wed, 10 Feb.Return flight with Iberia.Outbound indirect flight with Iberia, departs from San Antonio International on Mon, 1 Feb, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Wed, 10 Feb, arriving in San Antonio International.Price includes taxes and charges.From 627 €, select.

London.631 € per passenger.Departing Tue, 26 Jan, returning Thu, 18 Feb.Return flight with Iberia.Outbound indirect flight with Iberia, departs from San Antonio International on Tue, 26 Jan, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Thu, 18 Feb, arriving in San Antonio International.Price includes taxes and charges.From 631 €, select.

London.641 € per passenger.Departing Sun, 27 Sep, returning Tue, 13 Oct.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from San Antonio International on Sun, 27 Sep, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Tue, 13 Oct, arriving in San Antonio International.Price includes taxes and charges.From 641 €, select.

London.644 € per passenger.Departing Wed, 14 Oct, returning Wed, 21 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from San Antonio International on Wed, 14 Oct, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Gatwick on Wed, 21 Oct, arriving in San Antonio International.Price includes taxes and charges.From 644 €, select.

London.644 € per passenger.Departing Sun, 6 Dec, returning Tue, 22 Dec.Return flight with KLM.Outbound indirect flight with KLM, departs from San Antonio International on Sun, 6 Dec, arriving in London Heathrow.Inbound indirect flight with KLM, departs from London Heathrow on Tue, 22 Dec, arriving in San Antonio International.Price includes taxes and charges.From 644 €, select.

London.645 € per passenger.Departing Mon, 30 Nov, returning Tue, 8 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from San Antonio International on Mon, 30 Nov, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Gatwick on Tue, 8 Dec, arriving in San Antonio International.Price includes taxes and charges.From 645 €, select.

London.646 € per passenger.Departing Mon, 4 Jan, returning Tue, 26 Jan.Return flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departs from San Antonio International on Mon, 4 Jan, arriving in London Heathrow.Inbound indirect flight with Virgin Atlantic, departs from London Gatwick on Tue, 26 Jan, arriving in San Antonio International.Price includes taxes and charges.From 646 €, select.

London.648 € per passenger.Departing Sun, 28 Feb, returning Wed, 10 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from San Antonio International on Sun, 28 Feb, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Heathrow on Wed, 10 Mar, arriving in San Antonio International.Price includes taxes and charges.From 648 €, select.

London.649 € per passenger.Departing Sun, 8 Aug, returning Wed, 8 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from San Antonio International on Sun, 8 Aug, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Wed, 8 Sep, arriving in San Antonio International.Price includes taxes and charges.From 649 €, select.

London.651 € per passenger.Departing Mon, 29 Mar, returning Wed, 7 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from San Antonio International on Mon, 29 Mar, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Gatwick on Wed, 7 Apr, arriving in San Antonio International.Price includes taxes and charges.From 651 €, select.

London.653 € per passenger.Departing Wed, 14 Apr, returning Wed, 21 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from San Antonio International on Wed, 14 Apr, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Gatwick on Wed, 21 Apr, arriving in San Antonio International.Price includes taxes and charges.From 653 €, select.

London.653 € per passenger.Departing Tue, 27 Apr, returning Fri, 7 May.Return flight with Delta.Outbound indirect flight with Delta, departs from San Antonio International on Tue, 27 Apr, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Gatwick on Fri, 7 May, arriving in San Antonio International.Price includes taxes and charges.From 653 €, select.

London.655 € per passenger.Departing Wed, 3 Mar, returning Thu, 11 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from San Antonio International on Wed, 3 Mar, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Gatwick on Thu, 11 Mar, arriving in San Antonio International.Price includes taxes and charges.From 655 €, select.

London.694 € per passenger.Departing Thu, 13 May, returning Fri, 21 May.Return flight with Delta.Outbound indirect flight with Delta, departs from San Antonio International on Thu, 13 May, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Gatwick on Fri, 21 May, arriving in San Antonio International.Price includes taxes and charges.From 694 €, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Antonio International to London flights are currently cheapest in November.

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Alternative San Antonio International to London routes

Looking for the cheapest, fastest or easiest route from San Antonio International to London? You could fly into the following airports instead.

San Antonio to London: Flight information

The things to know before you go.

Cheapest flight found	621 €
Cheapest month to fly	October

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

How many airports are there in London?

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.

How much are return flights from San Antonio International to London?

The best price we found for a return flight from San Antonio International to London is 621 €. 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.

Which airlines fly direct from San Antonio International to London?

Currently, there are no airlines that fly direct from San Antonio International to London. But we found flights with one or more stops from 621 €.

How many flights are there a week from San Antonio International to London?

As of September 2026, there are no flights flying from San Antonio International to London.

When is the cheapest time to fly from San Antonio International to London?

The cheapest month to fly from San Antonio International to London is usually October.

Which is the cheapest airport to fly into in London?

If you're flying from San Antonio International Airport, the cheapest airport near London is London Heathrow – which is 22.9 km away from the centre of London. We've found flights into this airport from 621 €.

Which upcoming date is cheapest to fly from San Antonio International Airport to London on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Antonio International Airport to London on Tuesday, 27 October 2026.

Can I get a direct flight from San Antonio International Airport to London?

No airlines currently offer direct flights between San Antonio International Airport and London. Most routes have one or more stops.

How can I get the best flight deal from San Antonio International Airport to London?

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 London 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.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in London?

In September, the average temperature is usually around 16°C. July is typically the warmest month in London, when it usually averages around 23°C. You can expect the least rain in April. The coldest month is January, with temperatures averaging 2°C. The rainiest month is October.

Which is the cheapest airline to fly from San Antonio International Airport to London with?

Currently, Iberia offers the cheapest flight tickets to London.

Flying from San Antonio International Airport (SAT) to London: what you need to know

London is six hours ahead of San Antonio, where San Antonio International Airport is located. London follows the UTC+0 timezone.
For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to catch your SAT to London flight.
Travelling during a peak time such as July? School holidays and other popular seasons can mean longer queues at security. Play it safe and get there up to four hours ahead of an international flight and two hours before domestic departures.
A stopover is the perfect opportunity to break up your journey and possibly even tick off a new city. When searching for plane tickets from SAT to London, uncheck the 'Direct flights only' box to see where you can stop along the way. Some popular options include:
- Atlanta Hartsfield-Jackson International Airport (ATL)
- Dallas Fort Worth International Airport (DFW)
- Frankfurt Airport (FRA)
Travelling from central San Antonio to SAT takes around 50 minutes on public transport. If you drive, ride-share or get a taxi, you'll cover the 13 kilometres in 20 minutes or so, depending on traffic.
Booked an early flight from San Antonio International Airport to London? Avoid the hassle of rushing to the terminal (and get some extra shut-eye) by choosing one of these hotels near SAT:
San Antonio International Airport gets high marks for on-time performance. 82% of flights that take off from SAT land on time.
SAT is located at 9800 Airport Boulevard.

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

276 € is currently the best price for a one-way San Antonio International Airport to London flight. A return plane ticket starts from 621 €. These prices may change depending on availability and demand.
Booking in advance is often the key to locking in a cheap flight from SAT to London. Fares tend to rise as seats fill up, so the nearer your departure date, the more you'll likely spend on your ticket.
If you're willing to be flexible with your travel plans, try using the 'Whole month' tool. It'll give you the cheapest price across each month when searching for a San Antonio International Airport to London ticket.
There's no need to keep looking every day to find out if fares have dropped when you set up a Price Alert. We'll update you as soon as there's an even bigger deal on cheap flights from SAT to London.
Choose your ideal arrival and departure times, number of stops and airlines with our filters. Then, sort the results for your flight from San Antonio International Airport to London by 'Best,' 'Cheapest' or 'Fastest.'

Airports in London

London Heathrow Airport (LHR)

The distance from London Heathrow Airport (LHR) to central London is roughly 24 kilometres. It takes about 45 minutes to get to the centre driving.
It'll take around 25 minutes when travelling by public transport.
The last thing you want is a lengthy journey to your hotel if you're landing late on a flight from San Antonio International Airport to London. Check in to one of these accommodation options near LHR instead:
Booking your ride from London Heathrow Airport around one week before your flight from SAT to London can help you secure the lowest rate.

London Gatwick Airport (LGW)

London Gatwick Airport (LGW) is about 48 kilometres from the centre of London. After your flight from San Antonio International Airport to London, it'll take you around 1 hour 5 minutes to get to the heart of the city in a taxi or ride-share.
The journey will take roughly 1 hour 20 minutes on public transport.
There are some comfortable places to rest your head close to LGW. Unwind and get cosy after your SAT to London flight at one of these well-located options:
Avoid paying more than you need to. Securing your ride three weeks before your arrival at LGW will help you save.

London Stansted Airport (STN)

London Stansted Airport (STN) is about 56 kilometres from central London. It'll take you about 1 hour 5 minutes to reach the city centre in a taxi or ride-share after your flight from San Antonio International Airport to London.
Public transport will get you there in about 45 minutes.
If you don't want to make your way to the centre, find a hotel close to STN. Check in to one of these stays after your SAT to London flight:
Plan ahead and put that extra money in your pocket. Book your ride from STN four weeks before your flight from San Antonio International Airport to London for the best deals.

Best time to go to London

July is the most popular month for flights from San Antonio International Airport to London. To escape the crowds, head to London in January.
Lock in a San Antonio International Airport to London plane ticket with a departure in July if you want to experience the city during its warmest month. Expect temperatures to range from 11ºC (52ºF) to 26ºC (79ºF).
Search for cheap tickets from SAT to London in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

More about London

Once you've booked your flight from San Antonio International Airport to London, find a hotel that offers both comfort and a great location. Make one of these options your base for exploring London:
Every great journey has to include a little sightseeing. Westminster Abbey, The British Museum and Big Ben are must-do's during your London adventure.

Explore more of the United Kingdom

London has its own special appeal, but there are so many other corners of the United Kingdom you'll want to see. Around 257 kilometres northwest of London, a trip to Manchester will keep you busy. Start with attractions like Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.
Birmingham is another sought-after destination in the United Kingdom and is around 161 kilometres northwest of London. No trip is complete without dropping by Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.

Plan the rest of your trip from San Antonio to London

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.