Are direct flights from San Antonio to London always the best option?

Direct flights offer convenience and save travel time, but they are not always the cheapest option. Flights with layovers can often be more affordable, especially for long-haul journeys. Consider your budget and time constraints when making your choice.

Can flexible travel dates help on San Antonio to London flights?

Yes, being flexible with your travel dates can significantly impact flight prices. Shifting your departure or return by a few days can sometimes lead to substantial savings. Weekday travel or flying during the shoulder seasons often presents better deals.

What extra costs should I check before booking San Antonio to London flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Factor these into your total travel budget to avoid surprises.

Flights From San Antonio

To London

Cheap Flights from San Antonio to London

Browse current best options from San Antonio. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

San Antonio

RatePunk searches hundreds of travel sites at once for deals on flights to London

Prices updated 1 day ago

462 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Sep 15, 2026.)

Today’s best flight deals from San Antonio to London

Explore current cheapest deals departing from San Antonio to London

2026-10-26 – 2026-11-10
SAT - London
75% AI deal score
$760
$734
Round trip
2026-10-07 – 2026-10-14
SAT - London
76% AI deal score
$809
$744
Round trip
2026-09-23 – 2026-09-30
SAT - London
77% AI deal score
$835
$745
Round trip
2026-09-29 – 2026-10-06
SAT - London
76% AI deal score
$807
$745
Round trip
2026-10-13 – 2026-10-20
SAT - London
76% AI deal score
$808
$745
Round trip
2026-10-14 – 2026-10-21
SAT - London
76% AI deal score
$808
$745
Round trip
2026-10-27 – 2026-11-04
SAT - London
75% AI deal score
$781
$745
Round trip
2026-11-04 – 2026-12-03
SAT - London
73% AI deal score
$746
$745
Round trip
2026-12-30 – 2027-01-13
SAT - London
78% AI deal score
$873
$745
Round trip
2026-12-30 – 2027-01-14
SAT - London
78% AI deal score
$865
$745
Round trip

San Antonio to London: Overview

Insights for flights from San Antonio to London

Right now, only 1% of recent fares from San Antonio to London are classified as a good price. Fares for this route typically range from $708–$1141, with a median of $900. Currently, prices are above the typical level for flights from San Antonio to London. New deals appear almost daily, offering frequent opportunities to find better fares.

When considering the cheapest time to fly from San Antonio to London, January stands out with a median fare of $524. Other cost-effective months include March, with a median fare of $572, and September, where the median fare is $591. These months offer more favorable pricing compared to the overall median for the route.

Most itineraries from San Antonio to London connect at least once, as 0% of recent fares were for non-stop flights. For connecting itineraries, the typical number of connections is 2. This means you should expect to make multiple stops on your journey to London.

A typical journey from San Antonio to London takes approximately 25h 16m, including connections. This duration reflects the common itineraries, which often involve two or more stops given the lack of direct flights on this long-haul route. The total travel time can vary depending on the specific layovers and airlines chosen.

The distance between San Antonio and London is approximately 8023 kilometers. This classifies the route as a long-haul journey, indicating a significant distance that typically requires extended travel times and often involves connecting flights.

How much is a round trip from San Antonio to London

Regular price: $655 - $1,515

Prices for flights from San Antonio to London are currently within the regular range.

The regular price range for this route is between $655 and $1515. The current lowest deal is $703 with Frontier Airlines for travel from Oct 5 to Oct 20.

now $703

Low $655

High $1,515

The cheapest time to fly from San Antonio to London

The cheapest month to fly from San Antonio to London is January, with a median price of $524. The most expensive month is October, with a median price of $951. Prices are generally lower from January to December.

January

Cheapest

Flights from $524

October

Most Expensive

Flights from $951

Jan

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from San Antonio to London

United Airlines

Frontier Airlines

Norse Atlantic UK

Breeze Airways

Last-minute flights going from San Antonio to London

Mon, Sep 21

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

United Airlines

$774

$744

One-way

Tue, Sep 22

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

$787

$752

One-way

Wed, Sep 23

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

United Airlines

$766

$744

One-way

Wed, Sep 23

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

$840

$745

One-way

Wed, Sep 23

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

$784

$757

One-way

Thu, Sep 24

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

British Airways

$922

$860

One-way

Biggest price drops on these dates for flights from San Antonio to London

3 nights

Sep 25 - Sep 28

$925 → $843

4 nights

Sep 24 - Sep 28

$922 → $860

2 nights

Sep 18 - Sep 20

$1,084 → $1,067

3 nights

Sep 17 - Sep 20

$1,075 → $1,065

Popular Airports to fly from San Antonio to London

San Antonio - London route insights

💸 Price insights

Current fares are above the typical level

Recent fares from San Antonio to London are above the typical level of $900.

📅 Best time to fly

January, March, and September offer the lowest median prices

Historically, January ($524), March ($572), and September ($591) have offered the lowest median prices.

⏱️ Flight duration

Flights to London take 25h 16m on average

The median flight duration from San Antonio to London is 25 hours and 16 minutes.

✈️ Airlines & availability

Connecting flights are dominant for this route

Connecting flights are dominant for this route, with a median of 2 stopovers.

🏆 Airline highlight

Frontier Airlines offers a recent deal at $703

Frontier Airlines recently offered a deal for $703 from San Antonio International to Gatwick.

🎯 Booking tip

Deals appear frequently on this route

Deals for flights from San Antonio to London appear frequently, typically every 30 days.

San Antonio main airports to depart from

San Antonio International (SAT)

Cheapest

San Antonio International offers flights to London, providing a convenient departure point for your journey.

📍 ~12 km from San Antonio (reachable by car)

💸 Flights from ~$732

London main airports to arrive at

Gatwick (LGW)

Cheapest

Gatwick Airport offers a convenient arrival option for flights from San Antonio to London.

📍 ~40 km from London city center (reachable by car)

💸 Flights from ~$741

Airports nearby London used as alternative

Birmingham (BHX)

Cheapest

Birmingham Airport offers a wide variety of routes and excellent rail connectivity to London Euston.

📍 ~150 km from London (reachable by train)

💸 Flights from ~$817

Business & First Class Flight Deals to London

Discover luxury on the budget with premium cabin class on flights from San Antonio to London.

Elite

Best Elite deals to London

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From SAT

Elite

Jan 17

London, United Kingdom

90% AI deal score

$5,225

$3,924

Save $1,301

Alaska Airlines, Inc., +1

Business Class

From SAT

Elite

Jan 17

London, United Kingdom

89% AI deal score

$5,097

$3,967

Save $1,130

Alaska Airlines, Inc., +1

Business Class

From SAT

Elite

Jan 04

London, United Kingdom

89% AI deal score

$5,103

$3,994

Save $1,109

Alaska Airlines, Inc., +1

Business Class

From SAT

Elite

Jan 04

London, United Kingdom

84% AI deal score

$4,861

$3,935

Save $926

Alaska Airlines, Inc., +1

Business Class

From SAT

Elite

Jan 04

London, United Kingdom

84% AI deal score

$4,825

$3,978

Save $847

Alaska Airlines, Inc., +1

Business Class

From SAT

Elite

Jan 04

London, United Kingdom

84% AI deal score

$5,013

$4,041

Save $972

Alaska Airlines, Inc., +1

Business Class

From SAT

Elite

Dec 02

London, United Kingdom

84% AI deal score

$5,368

$4,156

Save $1,212

Alaska Airlines, Inc., +1

Business Class

From SAT

Elite

Dec 09

London, United Kingdom

83% AI deal score

$4,954

$4,049

Save $905

Alaska Airlines, Inc., +1

Business Class

From SAT

Elite

Dec 09

London, United Kingdom

83% AI deal score

$4,945

$4,096

Save $849

Alaska Airlines, Inc., +1

Business Class

From SAT

Elite

Dec 30

London, United Kingdom

83% AI deal score

$5,355

$4,328

Save $1,027

Aeroméxico, +1

Business Class

From SAT

Elite

Jan 04

London, United Kingdom

82% AI deal score

$4,863

$4,223

Save $640

Alaska Airlines, Inc., +1

Business Class

From SAT

Elite

Dec 11

London, United Kingdom

82% AI deal score

$4,997

$4,225

Save $772

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to London

To find more affordable flights, consider being flexible with your travel dates and times. Using flight comparison websites can help you see various options across different airlines. Sometimes, flying on weekdays or during off-peak seasons may offer better prices.

Booking in advance often provides more competitive prices, especially for international routes. However, last-minute deals can sometimes appear, though they are less common. Monitoring price trends can help you decide on an optimal booking time.

Comparing nearby airports at both your origin and destination can sometimes reveal more economical flight options. While it may involve additional travel time to and from these airports, the savings on airfare can be significant. Always factor in ground transportation costs.

Related routes

More routes from San Antonio

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Flights to London from other cities

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San Antonio to London: Overview

Insights for flights from San Antonio to London

How much is a round trip from San Antonio to London

Regular price: $655 - $1,515

Prices for flights from San Antonio to London are currently within the regular range.

The regular price range for this route is between $655 and $1515. The current lowest deal is $703 with Frontier Airlines for travel from Oct 5 to Oct 20.

now $703

Low $655

High $1,515

The cheapest time to fly from San Antonio to London

January

Cheapest

Flights from $524

October

Most Expensive

Flights from $951

Jan

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from San Antonio to London

United Airlines

Frontier Airlines

Norse Atlantic UK

Breeze Airways

Last-minute flights going from San Antonio to London

Mon, Sep 21

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

United Airlines

$774

$744

One-way

Tue, Sep 22

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

$787

$752

One-way

Wed, Sep 23

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

United Airlines

$766

$744

One-way

Wed, Sep 23

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

$840

$745

One-way

Wed, Sep 23

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

$784

$757

One-way

Thu, Sep 24

⌛ Last-Minute

SAT - London

San Antonio (SAT) - London (LHR)

British Airways

$922

$860

One-way

Biggest price drops on these dates for flights from San Antonio to London

3 nights

Sep 25 - Sep 28

$925 → $843

4 nights

Sep 24 - Sep 28

$922 → $860

2 nights

Sep 18 - Sep 20

$1,084 → $1,067

3 nights

Sep 17 - Sep 20

$1,075 → $1,065

Popular Airports to fly from San Antonio to London

San Antonio - London route insights

💸 Price insights

Current fares are above the typical level

Recent fares from San Antonio to London are above the typical level of $900.

📅 Best time to fly

January, March, and September offer the lowest median prices

Historically, January ($524), March ($572), and September ($591) have offered the lowest median prices.

⏱️ Flight duration

Flights to London take 25h 16m on average

The median flight duration from San Antonio to London is 25 hours and 16 minutes.

✈️ Airlines & availability

Connecting flights are dominant for this route

Connecting flights are dominant for this route, with a median of 2 stopovers.

🏆 Airline highlight

Frontier Airlines offers a recent deal at $703

Frontier Airlines recently offered a deal for $703 from San Antonio International to Gatwick.

🎯 Booking tip

Deals appear frequently on this route

Deals for flights from San Antonio to London appear frequently, typically every 30 days.

San Antonio main airports to depart from

San Antonio International (SAT)

Cheapest

San Antonio International offers flights to London, providing a convenient departure point for your journey.

📍 ~12 km from San Antonio (reachable by car)

💸 Flights from ~$732

London main airports to arrive at

Gatwick (LGW)

Cheapest

Gatwick Airport offers a convenient arrival option for flights from San Antonio to London.

📍 ~40 km from London city center (reachable by car)

💸 Flights from ~$741

Airports nearby London used as alternative

Birmingham (BHX)

Cheapest

Birmingham Airport offers a wide variety of routes and excellent rail connectivity to London Euston.

London, United Kingdom

82% AI deal score

$4,997

$4,225

Save $772

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to London

Cheap Flights from San Antonio to London

Today’s best flight deals from San Antonio to London

San Antonio to London: Overview

Insights for flights from San Antonio to London

How much is a round trip from San Antonio to London

The cheapest time to fly from San Antonio to London

Direct flights from San Antonio to London

Last-minute flights going from San Antonio to London

Biggest price drops on these dates for flights from San Antonio to London

Popular Airports to fly from San Antonio to London

San Antonio - London route insights

Current fares are above the typical level

January, March, and September offer the lowest median prices

Flights to London take 25h 16m on average

Connecting flights are dominant for this route

Frontier Airlines offers a recent deal at $703

Deals appear frequently on this route

San Antonio main airports to depart from

London main airports to arrive at

Airports nearby London used as alternative

Business & First Class Flight Deals to London

Best Elite deals to London

Jan 17

Jan 17

Jan 04

Jan 04

Jan 04

Jan 04

Dec 02

Dec 09

Dec 09

Dec 30

Jan 04

Dec 11

Frequently Asked Questions About Flights to London

How can I find cheap flights from San Antonio to London?

When should I book flights from San Antonio to London?

Should I compare nearby airports for flights from San Antonio to London?

Are direct flights from San Antonio to London always the best option?

Can flexible travel dates help on San Antonio to London flights?

What extra costs should I check before booking San Antonio to London flights?

Related routes

More routes from San Antonio

Flights to London from other cities

San Antonio to London: Overview

Insights for flights from San Antonio to London

How much is a round trip from San Antonio to London

The cheapest time to fly from San Antonio to London

Direct flights from San Antonio to London

Last-minute flights going from San Antonio to London

Biggest price drops on these dates for flights from San Antonio to London

Popular Airports to fly from San Antonio to London

San Antonio - London route insights

Current fares are above the typical level

January, March, and September offer the lowest median prices

Flights to London take 25h 16m on average

Connecting flights are dominant for this route

Frontier Airlines offers a recent deal at $703

Deals appear frequently on this route

San Antonio main airports to depart from

London main airports to arrive at

Airports nearby London used as alternative

Business & First Class Flight Deals to London

Best Elite deals to London

Jan 17

Jan 17

Jan 04

Jan 04

Jan 04

Jan 04

Dec 02

Dec 09

Dec 09

Dec 30

Jan 04

Dec 11

Frequently Asked Questions About Flights to London

How can I find cheap flights from San Antonio to London?

When should I book flights from San Antonio to London?

Should I compare nearby airports for flights from San Antonio to London?