Cheap Flights from London (LHR) to Siena (SAY)

Popular airlines from Heathrow Airport (LHR) to Ampugnano Airport (SAY)

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Siena (SAY-Ampugnano) cost?
Lock in a cheap one-way flight or cheap return flight from Heathrow Airport (LHR) to Siena (SAY-Ampugnano) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Heathrow Airport (LHR) to Siena (SAY-Ampugnano)?
is the least expensive month to fly from LHR to SAY. Traveling during quieter months is often the key to scoring lower fares.
What is the cheapest airline that flies from Heathrow Airport (LHR) to Siena (SAY-Ampugnano)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from LHR to SAY. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Heathrow Airport (LHR) to Siena (SAY-Ampugnano)?
You'll need to hop on a flight with a layover when traveling from Heathrow Airport (LHR) to Siena (SAY-Ampugnano). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from LHR to SAY?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Heathrow Airport (LHR) to Siena (SAY-Ampugnano)?
To touch down at Siena (SAY-Ampugnano) on time, opt for a flight that takes off from Heathrow Airport (LHR) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Siena (SAY-Ampugnano) last-minute?
Holding off until just before your trip to book a ticket from LHR to SAY often results in higher prices. Although you may find some last-minute offers, there's no guarantee. Allow some flexibility in your schedule to boost your chances of getting a bargain.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Siena (SAY-Ampugnano)?
You can usually cancel or reschedule your LHR to SAY flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Heathrow
Destination airport
Ampugnano
Distance
786 mi

Book with confidence

Book with confidence

London to Siena Flights

The cheapest times to fly from London to Siena

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Siena are during the month of . You can find some of the cheapest flights from London to Siena with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Siena

Sunday is one of the best days to book for cheap flights from London to Siena: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to Siena

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Siena in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Siena flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Siena airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

London to Siena Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.