Cheap flights from San Antonio to London Heathrow Airport from $405
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to London Heathrow Airport departing on 5/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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British Airways flights from San Antonio to London Heathrow Airport
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Iberia flights from San Antonio to London Heathrow Airport
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How to get the cheapest flight ticket from San Antonio to London Heathrow Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to London Heathrow Airport?
The month of October is, on average, the cheapest month to fly to London Heathrow Airport from San Antonio, with most prices found around $734. If you’re not able to fly to London Heathrow Airport in October, then April is your next best option. Flight prices from San Antonio to London Heathrow Airport during April average around $778.
What is the cheapest day to depart on your flight to London Heathrow Airport?
Our data shows that Thursday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $903. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,126.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is at noon. momondo users have found flights departing from San Antonio to London Heathrow Airport at noon for as low as $893. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $1,030.
How far in advance should I book a flight to London Heathrow Airport?
You are more likely to see cheaper flights to London Heathrow Airport from San Antonio when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $954 when searching 13 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San Antonio for as low as $867 on momondo.
What is the cheapest airline that flies from San Antonio to London Heathrow?
Aer Lingus, Delta, and United Airlines are the most popular carriers operating from San Antonio to London Heathrow
What airlines fly to London Heathrow Airport?
British Airways, American Airlines and Iberia are the top three most popular airlines that fly to London Heathrow Airport from San Antonio according to our data. British Airways is the first choice among our users, with 55% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 11 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
When to book flights from San Antonio to London Heathrow Airport
Cheap San Antonio to London Heathrow Airport (SAT to LHR) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Antonio to London Heathrow Airport
How far is San Antonio to London Heathrow by plane?
There are 4973.6 mi between San Antonio and London Heathrow. 11h 16m is a normal flight duration for this route.
When did momondo last update prices for flights from San Antonio Airport to London Heathrow Airport?
Prices for flights from San Antonio Airport to London Heathrow Airport are refreshed on a daily basis.
How many operators does momondo search for flights from San Antonio Airport to London Heathrow Airport?
As of April 2025, there are 6 operators available to choose from for flights from San Antonio Airport to London Heathrow Airport.
How old do you have to be to fly from San Antonio Airport to London Heathrow Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from San Antonio to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from San Antonio to London Heathrow Airport is British Airways, representing 32% of all bookings. The subsequent popular airlines are American Airlines at 22%, United Airlines at 18%, and Iberia at 11%.
Best airlines flying from San Antonio to London Heathrow Airport
Compare and see reviews for airlines that fly from San Antonio to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $672 | Free Cancellation | Rating 7.0 2,657 reviews | |||
| PriceFrom $692 | Free Cancellation | Rating 7.4 8,616 reviews | |||
| PriceFrom $703 | Free Cancellation | Rating 6.6 6,717 reviews | |||
| PriceFrom $745 | Free Cancellation | Rating 7.4 637 reviews | |||
| PriceFrom $753 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $778 | Free Cancellation | Rating 8.0 7,897 reviews |
Traveling to a place near London?
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Why should I use momondo to find a flight deal from San Antonio to London?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from San Antonio.
Can I find flights from San Antonio to London with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to London from San Antonio with this policy.
How can momondo help me find flights from San Antonio to London?
momondo provides multiple filters to help you find the best flight to London from San Antonio. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from San Antonio to London right now. Can momondo alert me if prices change?
If you are not ready to book a flight from San Antonio to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.