What is the cheapest month to fly to Siena?

Currently, January is the cheapest month in which you can book a flight to Siena . Flying to Siena in May will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Can I find cheaper flights to Siena if I am willing to have stopovers?

Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Siena on Cheapflights that require 1 or 2 stops for potential cost savings.

What is the best airline to fly to Siena?

Based on reviews from Cheapflights users, Ryanair is rated the highest out of the airlines that fly to Siena.

How much is a return flight to Siena?

A return flight to Siena will typically cost around £83, however they can be found for as little as £23.

Where does the fastest flight to Siena depart from?

For those looking to save time traveling to Siena, London offers the quickest one-way flight (2 hours 5 minutes).

Does Bologna Guglielmo Marconi have car hire?

Yes. Those touching down at Bologna Guglielmo Marconi can take advantage of the car hire services offered upon their arrival.

Are there hotels close to Bologna Guglielmo Marconi?

Yes. Bologna Guglielmo Marconi has hotels nearby for those requiring accommodations. Flyon Hotel & Conference Center is the closest property to Bologna Guglielmo Marconi (0.0 mi away from Bologna Guglielmo Marconi).

£69+ Flights to Siena | Cheapflights

Flights to Siena in 2025

Return from	£147
One-way from	£70
Popular in	July
Cheapest in	January
Average price	£226

7/9-17/9
2 total stops
22h 10m total
London to Florence

Search Deals

Vueling
30/7
Nonstop
2h 20m total
London to Siena

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£33 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for return flights in July 2025

Search Deals

Find flight deals to Siena

Cheapest flights to Siena
Explore the most affordable flight options available to Siena. Find the lowest fares based on data from user searches, with prices last updated on 15 July 2025.

Sun 7/907:40LGW - FLR

1 stop11h 20mMultiple Airlines

Wed 17/906:15FLR - LGW

1 stop10h 50mMultiple Airlines

Deal found 13/7£147

Thu 28/807:15STN - FLR

1 stop5h 05mMultiple Airlines

Thu 4/909:10FLR - STN

2 stops14h 20mMultiple Airlines

Deal found 14/7£147

Tue 23/916:50LCY - FLR

1 stop4h 50mITA Airways

Tue 30/919:00FLR - LCY

1 stop16h 05mITA Airways

Deal found 13/7£147

Wed 16/719:00LHR - FLR

Nonstop2h 20mBritish Airways

Wed 23/707:05FLR - LHR

Nonstop2h 25mBritish Airways

Deal found 13/7£148

Mon 4/819:50LGW - FLR

Nonstop2h 15mVueling

Fri 8/806:55FLR - LGW

Nonstop2h 25mVueling

Deal found 13/7£148

Tue 5/809:00LHR - FLR

1 stop4h 55mMultiple Airlines

Thu 21/811:30FLR - LHR

1 stop11h 05mMultiple Airlines

Deal found 13/7£149

Sat 6/914:10LTN - FLR

1 stop7h 45mMultiple Airlines

Wed 10/906:15FLR - LTN

1 stop5h 30mMultiple Airlines

Deal found 14/7£149

Wed 27/806:00LHR - FLR

1 stop10h 45mAustrian Airlines

Wed 3/918:30FLR - LHR

1 stop15h 15mAustrian Airlines

Deal found 13/7£149

Tue 23/912:05LGW - FLR

1 stop5h 10mITA Airways

Mon 29/919:00FLR - LGW

1 stop17h 15mITA Airways

Deal found 13/7£149

Sat 6/906:00LHR - FLR

1 stop15h 35mSWISS

Mon 8/906:05FLR - LHR

1 stop11h 20mSWISS

Deal found 14/7£150

Wed 13/809:00LHR - FLR

1 stop4h 55mLufthansa

Tue 19/818:55FLR - LHR

1 stop13h 45mLufthansa

Deal found 13/7£152

Thu 13/1111:35LCY - FLR

Nonstop2h 05mBritish Airways

Fri 14/1115:20FLR - LCY

Nonstop2h 10mBritish Airways

Deal found 13/7£157

Best flights to Siena
Discover carefully curated flight deals to Siena that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 July 2025.

Sun 7/907:40LGW - FLR

1 stop11h 20mMultiple Airlines

Wed 17/906:15FLR - LGW

1 stop10h 50mMultiple Airlines

Deal found 13/7£147

Tue 23/916:50LCY - FLR

1 stop4h 50mITA Airways

Sun 28/919:00FLR - LCY

1 stop16h 05mITA Airways

Deal found 13/7£147

Mon 4/819:50LGW - FLR

Nonstop2h 15mVueling

Fri 8/806:55FLR - LGW

Nonstop2h 25mVueling

Deal found 13/7£148

Wed 27/806:00LHR - FLR

1 stop10h 45mAustrian Airlines

Wed 3/918:30FLR - LHR

1 stop15h 15mAustrian Airlines

Deal found 13/7£149

Sat 6/906:00LHR - FLR

1 stop15h 35mSWISS

Mon 8/906:05FLR - LHR

1 stop11h 20mSWISS

Deal found 14/7£150

Wed 13/809:00LHR - FLR

1 stop4h 55mLufthansa

Tue 19/818:55FLR - LHR

1 stop13h 45mLufthansa

Deal found 13/7£152

Tue 5/811:05LHR - FLR

1 stop22h 40mBrussels Airlines

Thu 21/811:30FLR - LHR

1 stop6h 35mBrussels Airlines

Deal found 13/7£157

Sat 19/719:00LHR - FLR

Nonstop2h 20mBritish Airways

Tue 22/707:05FLR - LHR

Nonstop2h 25mBritish Airways

Deal found 14/7£158

Wed 10/917:10LHR - FLR

1 stop4h 20mKLM

Wed 17/906:30FLR - LHR

1 stop5h 15mKLM

Deal found 14/7£164

Thu 28/807:15STN - FLR

1 stop5h 05mMultiple Airlines

Thu 4/909:10FLR - STN

2 stops14h 20mMultiple Airlines

Deal found 14/7£147

Tue 23/912:05LGW - FLR

1 stop5h 10mITA Airways

Mon 29/919:00FLR - LGW

1 stop17h 15mITA Airways

Deal found 13/7£149

Sat 13/918:40LGW - FLR

1 stop14h 05mSWISS

Fri 19/906:05FLR - LGW

1 stop12h 45mSWISS

Deal found 13/7£159

Direct flights to Siena
Explore direct flight options to Siena based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 July 2025.

Thu 7/816:30LGW - FLR

Nonstop2h 25mVueling

Mon 11/806:55FLR - LGW

Nonstop2h 25mVueling

Deal found 14/7£147

Mon 20/1008:35LCY - FLR

Nonstop2h 10mBritish Airways

Fri 24/1015:10FLR - LCY

Nonstop2h 15mBritish Airways

Deal found 15/7£153

Wed 6/819:00LHR - FLR

Nonstop2h 20mBritish Airways

Thu 21/807:05FLR - LHR

Nonstop2h 25mBritish Airways

Deal found 15/7£157

Sun 19/1007:40STN - FLR

Nonstop2h 15mBritish Airways

Sat 25/1016:15FLR - STN

Nonstop2h 15mBritish Airways

Deal found 15/7£287

Last-minute flights to Siena
Discover last-minute flight deals to Siena. Data last updated 15 July 2025 and is based on user searches.

Wed 16/719:00LHR - FLR

Nonstop2h 20mBritish Airways

Wed 23/707:05FLR - LHR

Nonstop2h 25mBritish Airways

Deal found 13/7£148

Mon 21/716:40LTN - FLR

2 stops14h 45mMultiple Airlines

Fri 25/710:00FLR - LTN

1 stop9h 05mMultiple Airlines

Deal found 14/7£212

Tue 22/714:30LGW - FLR

Nonstop2h 25mVueling

Tue 29/706:25FLR - LGW

Nonstop2h 25mVueling

Deal found 15/7£149

Tue 22/719:00LHR - FLR

Nonstop2h 20mBritish Airways

Thu 31/707:05FLR - LHR

Nonstop2h 25mBritish Airways

Deal found 13/7£158

Tue 22/706:00LHR - FLR

1 stop10h 45mAustrian Airlines

Tue 29/711:00FLR - LHR

1 stop11h 40mAustrian Airlines

Deal found 13/7£184

Tue 22/706:55LHR - FLR

1 stop7h 00mLufthansa

Tue 29/717:25FLR - LHR

1 stop6h 15mLufthansa

Deal found 15/7£186

Tue 22/718:35LGW - FLR

1 stop22h 50mSWISS

Wed 30/719:15FLR - LGW

1 stop23h 40mSWISS

Deal found 13/7£194

Tue 22/706:30LHR - FLR

1 stop9h 25mMultiple Airlines

Fri 25/720:30FLR - LHR

1 stop12h 30mMultiple Airlines

Deal found 13/7£196

Tue 22/716:10STN - FLR

2 stops15h 25mMultiple Airlines

Tue 29/714:15FLR - STN

1 stop6h 45mMultiple Airlines

Deal found 15/7£205

Tue 22/719:20LCY - FLR

1 stop13h 25mSWISS

Tue 29/719:15FLR - LCY

1 stop14h 35mSWISS

Deal found 15/7£215

Thu 24/719:55LGW - FLR

Nonstop2h 15mMultiple Airlines

Thu 31/711:20FLR - LGW

1 stop24h 55mMultiple Airlines

Deal found 13/7£180

Fri 25/720:05LHR - FLR

1 stop12h 40mSWISS

Thu 31/719:15FLR - LHR

1 stop23h 35mSWISS

Deal found 15/7£162

One-way flights to Siena
Search for one-way flight options to Siena. Find affordable one-way fares based on user searches. Data last updated 15 July 2025.

Wed 30/708:30LGW - FLR

Nonstop2h 20mVueling

Deal found 14/7£70

Tue 16/914:50STN - FLR

1 stop7h 05mMultiple Airlines

Deal found 13/7£71

Tue 23/915:30LHR - FLR

1 stop6h 25mMultiple Airlines

Deal found 14/7£74

Sun 28/918:25LTN - FLR

1 stop13h 00mMultiple Airlines

Deal found 14/7£74

Sat 27/917:30SEN - FLR

2 stops13h 55mMultiple Airlines

Deal found 15/7£74

Sat 4/1020:50LHR - FLR

1 stop10h 35mVueling

Deal found 14/7£76

Mon 22/921:35LGW - FLR

2 stops24h 20mMultiple Airlines

Deal found 14/7£76

Thu 14/807:25LHR - FLR

1 stop8h 20mLufthansa

Deal found 14/7£88

Mon 15/916:50LCY - FLR

1 stop24h 25mITA Airways

Deal found 13/7£88

Thu 31/706:40LHR - FLR

1 stop5h 50mScandinavian Airlines

Deal found 15/7£91

Sun 28/919:50STN - FLR

1 stop12h 15mLufthansa

Deal found 14/7£91

Thu 14/818:40LGW - FLR

1 stop14h 05mSWISS

Deal found 14/7£91

Cheapflights Fare Finder

Use the filters below to find and compare flights to Siena that are best for you.

Fly from

Route

Depart

Return

Price

LondonFlorence

LGW - FLR

LGWFLR

London Gatwick

Sun 7/9

07:40-20:00

1 stop11h 20m

Florence Peretola

Wed 17/9

06:15-16:05

1 stop10h 50m

£147

LondonFlorence

LCY - FLR

LCYFLR

London City

Tue 23/9

16:50-22:40

1 stop4h 50m

Florence Peretola

Tue 30/9

19:00-10:05

1 stop16h 05m

£147

LondonFlorence

STN - FLR

STNFLR

London Stansted

Thu 28/8

07:15-13:20

1 stop5h 05m

Florence Peretola

Thu 4/9

09:10-22:30

2 stops14h 20m

£147

LondonFlorence

LGW - FLR

LGWFLR

London Gatwick

Mon 4/8

19:50-23:05

Nonstop2h 15m

Florence Peretola

Fri 8/8

06:55-08:20

Nonstop2h 25m

£148

LondonFlorence

LHR - FLR

LHRFLR

London Heathrow

Tue 5/8

09:00-14:55

1 stop4h 55m

Florence Peretola

Thu 21/8

11:30-21:35

1 stop11h 05m

£149

LondonFlorence

LTN - FLR

LTNFLR

London Luton

Sat 6/9

14:10-22:55

1 stop7h 45m

Florence Peretola

Wed 10/9

06:15-10:45

1 stop5h 30m

£149

LondonFlorence

LHR - FLR

LHRFLR

London Heathrow

Wed 27/8

06:00-17:45

1 stop10h 45m

Florence Peretola

Wed 3/9

18:30-08:45

1 stop15h 15m

£149

LondonFlorence

LGW - FLR

LGWFLR

London Gatwick

Tue 23/9

12:05-18:15

1 stop5h 10m

Florence Peretola

Mon 29/9

19:00-11:15

1 stop17h 15m

£149

LondonFlorence

LHR - FLR

LHRFLR

London Heathrow

Sat 6/9

06:00-22:35

1 stop15h 35m

Florence Peretola

Mon 8/9

06:05-16:25

1 stop11h 20m

£150

LondonFlorence

LHR - FLR

LHRFLR

London Heathrow

Wed 13/8

09:00-14:55

1 stop4h 55m

Florence Peretola

Tue 19/8

18:55-07:40

1 stop13h 45m

£152

Flights are sorted by cheapest return flights first.

Deals found on 15/7

Showing 1-10 of 41 results

...

Best time to book a flight to Siena

Have a flexible travel schedule? Discover the best time to fly to Siena with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Siena

When is the best time to book a flight to Siena?

The best time to book flights to Siena is 77 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

How long is the flight to Siena?

On average, a flight from London to Siena takes 3 hours 6 minutes. Flights to Siena from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Siena?

Users looking for the lowest fares to Siena should consider flying on Wednesday mornings, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday evenings, when prices are usually at their highest.

What are the most popular airlines that fly to Siena?

The most popular airlines flying from London to Siena are Vueling, British Airways and Lufthansa.

What are the cheapest airlines that fly to Siena?

The cheapest airlines flying from London to Siena are easyJet, Ryanair and Vueling.

Rainfall in Siena by month

In terms of precipitation, rainfall in Siena ranges from 30.0 - 100.0 inches per month. October is typically the wettest month, when rainfall can reach 100.0 mm. July is typically the driest time to visit Siena when rainfall is around 30.0 mm.

Temperature in Siena by month

If weather is an important factor for your trip to Siena, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Siena

See what other customers who have flown with KLM, Austrian Airlines, andSWISS to Italy have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,372 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Austrian Airlines

7.6

Good

814 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

SWISS

7.5

Good

1,658 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Scandinavian Airlines

7.3

Good

1,423 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Brussels Airlines

7.3

Good

350 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

FAQs about flying to Siena

Can I find cheaper flights to Siena if I am willing to have stopovers?
Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Siena on Cheapflights that require 1 or 2 stops for potential cost savings.
What is the best airline to fly to Siena?
Based on reviews from Cheapflights users, Ryanair is rated the highest out of the airlines that fly to Siena.
How much is a return flight to Siena?
A return flight to Siena will typically cost around £83, however they can be found for as little as £23.
Where does the fastest flight to Siena depart from?
For those looking to save time traveling to Siena, London offers the quickest one-way flight (2 hours 5 minutes).
Does Bologna Guglielmo Marconi have car hire?
Yes. Those touching down at Bologna Guglielmo Marconi can take advantage of the car hire services offered upon their arrival.
Are there hotels close to Bologna Guglielmo Marconi?
Yes. Bologna Guglielmo Marconi has hotels nearby for those requiring accommodations. Flyon Hotel & Conference Center is the closest property to Bologna Guglielmo Marconi (0.0 mi away from Bologna Guglielmo Marconi).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Search flights to Siena by cabin class

Popular Italy flight routes

Fly with Cheapflights

How does Cheapflights help users find flights to Siena?

Deals for Siena flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets to Siena?

Millions of users choose and trust Cheapflights to book the best flight deals to Siena for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights to Siena with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights to Siena flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights to Siena become cheaper?

Yes! Start tracking prices for Siena flights today and get alerted when prices change. To subscribe and begin receiving alerts, click the bell icon next to the flight deals above and provide your email address.

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£69+ Cheap flights to Siena

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/8. Fares are subject to change and may not be available on all flights or dates of travel.

Flights to Siena in 2025

Find the latest flights to Siena in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 15 July 2025.

Return from

One-way from

Popular in

Cheapest in

Average price

Find flight deals to Siena

Cheapest flights to SienaExplore the most affordable flight options available to Siena. Find the lowest fares based on data from user searches, with prices last updated on 15 July 2025.

Explore the most affordable flight options available to Siena. Find the lowest fares based on data from user searches, with prices last updated on 15 July 2025.

Cheapflights Fare Finder

Locate flights to Siena that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 15 July 2025.

Use the filters below to find and compare flights to Siena that are best for you.

Best time to book a flight to Siena

Have a flexible travel schedule? Discover the best time to fly to Siena with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight to Siena

When is the best time to book a flight to Siena?

Use this chart to determine the optimal time to book a return flight from London to Siena. Price data was last updated on 11 July 2025.

How long is the flight to Siena?

When is the cheapest time to fly to Siena?

Use this chart to determine the cheapest time to fly return from London to Siena. Price data was last updated on 16 December 2024.

What are the most popular airlines that fly to Siena?

What are the cheapest airlines that fly to Siena?

Rainfall in Siena by month

Plan your trip to Siena by taking into account the average rainfall totals by month.

Temperature in Siena by month

Plan your trip to Siena by taking into account the average temperature totals by month.

Reviews of airlines servicing Siena

Get insights into the airlines that provide service to Siena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Siena. Reviews last updated 15 July 2025.

See what other customers who have flown with KLM, Austrian Airlines, andSWISS to Italy have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

FAQs about flying to Siena

Can I find cheaper flights to Siena if I am willing to have stopovers?

What is the best airline to fly to Siena?

How much is a return flight to Siena?

Where does the fastest flight to Siena depart from?

Does Bologna Guglielmo Marconi have car hire?

Are there hotels close to Bologna Guglielmo Marconi?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Siena by cabin class

Find flights to Siena, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Siena?

Why should you use Cheapflights to find cheap flight tickets to Siena?

Can Cheapflights find flights to Siena with no change fees?

Can Cheapflights notify me if prices for flights to Siena become cheaper?

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Travel Smart

Cheapest flights to Siena
Explore the most affordable flight options available to Siena. Find the lowest fares based on data from user searches, with prices last updated on 15 July 2025.