Cheap Flights from San Antonio (SAT) to London (LHR)

View AU$852 flight on Sun, 5 July 2026Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Heathrow Airport (LHR)

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Cheap Flights from San Antonio (SAT) to London (LHR)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, 5 July - Thu, 16 July
SAT
San Antonio
LHR
London
AU$1,535 Return, found 1 day ago
AU$1,535
Return
found 1 day ago
Select United flight, departing Sun, 5 July from San Antonio to London, returning Thu, 16 July, priced at AU$1,535 found 1 day ago
Virgin Atlantic
Sun, 5 July - Thu, 16 July
SAT
San Antonio
LHR
London
AU$1,557 Return, found 1 day ago
AU$1,557
Return
found 1 day ago
Select Virgin Atlantic flight, departing Sun, 5 July from San Antonio to London, returning Thu, 16 July, priced at AU$1,557 found 1 day ago
Delta
Sun, 5 July - Thu, 16 July
SAT
San Antonio
LHR
London
AU$1,557 Return, found 1 day ago
AU$1,557
Return
found 1 day ago
Select Delta flight, departing Sun, 5 July from San Antonio to London, returning Thu, 16 July, priced at AU$1,557 found 1 day ago
Delta
Sun, 5 July - Thu, 16 July
SAT
San Antonio
LHR
London
AU$1,597 Return, found 1 day ago
AU$1,597
Return
found 1 day ago
Select Delta flight, departing Sun, 5 July from San Antonio to London, returning Thu, 16 July, priced at AU$1,597 found 1 day ago
United
Sat, 4 July - Tue, 14 July
SAT
San Antonio
LHR
London
AU$1,619 Return, found 1 day ago
AU$1,619
Return
found 1 day ago
Select United flight, departing Sat, 4 July from San Antonio to London, returning Tue, 14 July, priced at AU$1,619 found 1 day ago
Air Canada
Sat, 4 July - Tue, 14 July
SAT
San Antonio
LHR
London
AU$1,631 Return, found 1 day ago
AU$1,631
Return
found 1 day ago
Select Air Canada flight, departing Sat, 4 July from San Antonio to London, returning Tue, 14 July, priced at AU$1,631 found 1 day ago
KLM
Sun, 5 July - Thu, 16 July
SAT
San Antonio
LHR
London
AU$1,636 Return, found 1 day ago
AU$1,636
Return
found 1 day ago
Select KLM flight, departing Sun, 5 July from San Antonio to London, returning Thu, 16 July, priced at AU$1,636 found 1 day ago
Delta
Sat, 4 July - Tue, 14 July
SAT
San Antonio
LHR
London
AU$1,641 Return, found 1 day ago
AU$1,641
Return
found 1 day ago
Select Delta flight, departing Sat, 4 July from San Antonio to London, returning Tue, 14 July, priced at AU$1,641 found 1 day ago
Delta
Sun, 5 July - Sun, 12 July
SAT
San Antonio
LHR
London
AU$1,655 Return, found 1 day ago
AU$1,655
Return
found 1 day ago
Select Delta flight, departing Sun, 5 July from San Antonio to London, returning Sun, 12 July, priced at AU$1,655 found 1 day ago
Delta
Sat, 4 July - Tue, 14 July
SAT
San Antonio
LHR
London
AU$1,681 Return, found 1 day ago
AU$1,681
Return
found 1 day ago
Select Delta flight, departing Sat, 4 July from San Antonio to London, returning Tue, 14 July, priced at AU$1,681 found 1 day ago

Find the cheapest month to fly from San Antonio (SAT) to London (LHR)

October is typically the cheapest month to fly

From AU$999 - AU$1,387 per traveller.

Frequently asked questions

How much does a flight from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) cost?
One-way flights typically cost between $643 and $1,846 and return flights often range between $643 and $1,846. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow)?
October is typically the cheapest month to fly from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow), with average return fares of approximately 963 AUD. This is about 18% lower than the average price throughout the year. October often sees lower prices as the summer travel rush has ended and before the winter holiday season begins, leading to reduced demand. Other cheap months to fly from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) include September and November.
How do I find cheap flights from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow)?
To find a cheap flight from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow)?
Based on booking data from the past year, the cheapest months to fly from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) are typically October and September, with average return flight prices around 963 AUD. However, the most popular months for this route are July and February, meaning you'll find heaps of flight options during those times. If you're looking for the best value, aiming for October or September will help you save on your trip.
How many flights per day from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow)?
There are approximately 69 connecting flights per day from San Antonio Intl. (SAT) to Heathrow (LHR). Some common connection points include Dallas-Fort Worth Intl. (DFW), Hartsfield-Jackson Atlanta Intl. (ATL), and O'Hare Intl. (ORD).
What is the earliest flight from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow)?
The earliest flight from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) typically departs at approximately 5:00 AM local time, operated by American Airlines. This is a seasonal service active in March. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow)?
You'll typically find the most flights from San Antonio Intl. (SAT) to Heathrow (LHR) on a Sunday, with around 62 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include American Airlines, Delta Air Lines, and United Airlines. Looking at the overall week, Sunday offers notably more flight options compared to other days.
What are the most popular departure times for flights from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) are in the arvo, from 12pm to 3pm. Around 37 AUD% of passengers reckon this time's best. Heaps of major carriers, including American Airlines, United Airlines and British Airways, offer flights during this window. This timing works well because it allows you to have a relaxed morning before heading to the airport, and you'll arrive in London ready to start your day.
How long does it take to fly from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow)?
A flight from SAT to LHR with a layover takes around 12 hours 20 minutes, with the route covering approximately 4,971 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow)?
Select the "Business class" and "First class" filters when looking for SAT to LHR flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from San Antonio Intl. (SAT)?
From San Antonio Intl. (SAT), you can fly into Heathrow (LHR), Gatwick (LGW) and London Intl. (YXU) in London. Some flights may connect through major hubs like Dallas-Fort Worth Intl. (DFW), Charlotte-Douglas Intl. (CLT), Hartsfield-Jackson Atlanta Intl. (ATL) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow)?
If you booked your San Antonio, TX (SAT-San Antonio Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Antonio Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, United, Virgin Atlantic
Return price
AU$1,535
Distance
7953 km

Book with confidence

Your quick guide to flights from San Antonio to London

Pick up great flights from San Antonio to London

With Expedia, you have your pick of flights a day with 20 airlines covering flights from San Antonio to London. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from San Antonio to London that take around hours.

Find cheap flights from San Antonio to London

From the great flight deals with prices currently ranging from AU$1,535 to AU$1,681, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from San Antonio to London around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to London is normally in July.

Reasons to book your flight from San Antonio to London with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from San Antonio to London across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to London right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from San Antonio to London

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