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£37+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
— BLQ
24 Mar — 31 Mar1
1 adult
1 adult, Economy, 0 bags

Flights to Siena in 2026

Enter your travel dates to find the best prices.

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 22 February 2026.

Tue 21/419:40
LGW
-
FLR
Nonstop2h 15m
Vueling
Sat 25/406:55
FLR
-
LGW
Nonstop2h 25m
Vueling
Deal found 19/2£73
Tue 17/1108:55
LGW
-
FLR
Nonstop2h 15m
Vueling
Thu 26/1113:20
FLR
-
LGW
Nonstop2h 20m
Vueling
Deal found 21/2£74
Sat 18/413:00
LGW
-
FLR
1 stop8h 55m
Vueling
Wed 22/406:25
FLR
-
LGW
Nonstop2h 25m
Vueling
Deal found 18/2£75
Wed 15/408:30
LGW
-
FLR
Nonstop2h 25m
Vueling
Wed 22/406:25
FLR
-
LGW
Nonstop2h 25m
Vueling
Deal found 18/2£76
Thu 8/1019:55
LGW
-
FLR
Nonstop2h 15m
Vueling
Sun 11/1006:25
FLR
-
LGW
Nonstop2h 25m
Vueling
Deal found 19/2£76
Sat 3/1019:50
LGW
-
FLR
Nonstop2h 15m
Vueling
Thu 8/1007:35
FLR
-
LGW
Nonstop2h 25m
Vueling
Deal found 21/2£77
Tue 14/414:30
LGW
-
FLR
1 stop5h 55m
Vueling
Thu 16/407:35
FLR
-
LGW
Nonstop2h 25m
Vueling
Deal found 18/2£79
Tue 27/1008:55
LGW
-
FLR
Nonstop2h 15m
Vueling
Tue 3/1106:55
FLR
-
LGW
Nonstop2h 20m
Vueling
Deal found 19/2£80
Thu 9/415:25
LGW
-
FLR
1 stop5h 05m
Vueling
Wed 15/406:25
FLR
-
LGW
Nonstop2h 25m
Vueling
Deal found 18/2£81
Sat 11/419:50
LGW
-
FLR
Nonstop2h 15m
Vueling
Fri 17/407:00
FLR
-
LGW
Nonstop2h 25m
Vueling
Deal found 18/2£82
Mon 23/1109:50
LGW
-
FLR
Nonstop2h 15m
Vueling
Wed 25/1108:20
FLR
-
LGW
Nonstop2h 20m
Vueling
Deal found 21/2£82
Mon 14/919:50
LGW
-
FLR
Nonstop2h 15m
Vueling
Thu 24/907:35
FLR
-
LGW
Nonstop2h 25m
Vueling
Deal found 19/2£83

Find flight deals to Siena

Find the latest flights to Siena in 2026, 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 22 February 2026.

Return from

£73

One-way from

£37

Popular in

July

Cheapest in

January

Average price

£168
Vueling
  • Vueling
  • 21/4-25/4
  • Nonstop
  • 4h 40m total
  • London to Florence
Search Deals
Vueling
  • Vueling
  • 9/6
  • Nonstop
  • 2h 15m total
  • London to Siena
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for return flights in February 2026
Search Deals

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 22 February 2026.
Use the filters below to find and compare flights to Siena that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonFlorence

LTN - FLR

LTNFLR

London Luton

Tue 21/4

20:55-22:30

2 stops24h 35m

Florence Peretola

Sat 25/4

06:05-00:30

2 stops19h 25m

£119

LondonFlorence

LTN - FLR

LTNFLR

London Luton

Tue 21/4

12:45-21:25

1 stop7h 40m

Florence Peretola

Wed 22/4

15:30-21:05

1 stop6h 35m

£137

LondonFlorence

LTN - FLR

LTNFLR

London Luton

Tue 5/5

05:40-17:05

1 stop10h 25m

Florence Peretola

Sun 10/5

18:45-04:55

2 stops11h 10m

£142

LondonFlorence

STN - FLR

STNFLR

London Stansted

Sat 11/4

12:30-22:55

1 stop9h 25m

Florence Peretola

Mon 13/4

19:00-07:55

1 stop13h 55m

£143

LondonFlorence

LTN - FLR

LTNFLR

London Luton

Sat 16/5

16:30-08:15

2 stops14h 45m

Florence Peretola

Tue 19/5

18:45-19:55

2 stops26h 10m

£144

LondonFlorence

LGW - FLR

LGWFLR

London Gatwick

Tue 17/3

18:40-08:50

1 stop13h 10m

Florence Peretola

Sat 21/3

18:55-17:50

1 stop23h 55m

£145

LondonFlorence

LHR - FLR

LHRFLR

London Heathrow

Sat 2/5

06:00-22:15

1 stop15h 15m

Florence Peretola

Tue 5/5

07:00-21:40

1 stop15h 40m

£146

LondonFlorence

LHR - FLR

LHRFLR

London Heathrow

Wed 11/3

17:10-08:50

1 stop14h 40m

Florence Peretola

Mon 16/3

19:00-21:40

1 stop3h 40m

£147

LondonFlorence

LTN - FLR

LTNFLR

London Luton

Sat 11/4

08:40-22:55

1 stop13h 15m

Florence Peretola

Mon 13/4

13:00-11:00

2 stops23h 00m

£147

LondonFlorence

LGW - FLR

LGWFLR

London Gatwick

Tue 17/3

14:55-18:05

Nonstop2h 10m

Florence Peretola

Sat 21/3

18:00-19:15

Nonstop2h 15m

£148

Flights are sorted by cheapest return flights first.

Deals found on 18/2

Showing 1-10 of 60 results
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2
3
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6

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?

Use this chart to determine the optimal time to book a return flight from London to Siena. Price data was last updated on 20 February 2026.

The best time to book flights to Siena is 55 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 21 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?

Use this chart to determine the cheapest time to fly return from London to Siena. Price data was last updated on 17 February 2026.

Users looking for the lowest fares to Siena should consider flying on Monday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Friday 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.

Vueling
Vueling
From £65
British Airways
British Airways
From £123
KLM
KLM
From £155
Lufthansa
Lufthansa
From £135

What are the cheapest airlines that fly to Siena?

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

Rainfall in Siena by month

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

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

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 22 February 2026.
See what other customers who have flown with Vueling, Ryanair, andeasyJet to Italy have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Vueling
7.2
Good
1,246 reviews
Check prices

Crew

7.7

Food

6.2

Comfort

6.8

Boarding

7.2

Entertainment

5.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Luis Alfonso,Feb 2026

BCN - ALC

In overall good. The crew were very nice as always. I must say it is the tidiest airline when it comes to disembarkation
Vueling
7.2
Good
1,246 reviews
Vueling
7.2
Good
1,246 reviews
Check prices

Crew

7.7

Food

6.2

Comfort

6.8

Boarding

7.2

Entertainment

5.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Luis Alfonso,Feb 2026

BCN - ALC

In overall good. The crew were very nice as always. I must say it is the tidiest airline when it comes to disembarkation
Ryanair
6.9
Okay
5,277 reviews
Vueling
7.2
Good
1,246 reviews
Check prices

Crew

7.7

Food

6.2

Comfort

6.8

Boarding

7.2

Entertainment

5.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Luis Alfonso,Feb 2026

BCN - ALC

In overall good. The crew were very nice as always. I must say it is the tidiest airline when it comes to disembarkation
easyJet
6.9
Okay
1,875 reviews
Vueling
7.2
Good
1,246 reviews
Check prices

Crew

7.7

Food

6.2

Comfort

6.8

Boarding

7.2

Entertainment

5.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Luis Alfonso,Feb 2026

BCN - ALC

In overall good. The crew were very nice as always. I must say it is the tidiest airline when it comes to disembarkation
Lufthansa
6.8
Okay
7,802 reviews
Vueling
7.2
Good
1,246 reviews
Check prices

Crew

7.7

Food

6.2

Comfort

6.8

Boarding

7.2

Entertainment

5.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Luis Alfonso,Feb 2026

BCN - ALC

In overall good. The crew were very nice as always. I must say it is the tidiest airline when it comes to disembarkation
British Airways
6.7
Okay
7,757 reviews
Vueling
7.2
Good
1,246 reviews
Check prices

Crew

7.7

Food

6.2

Comfort

6.8

Boarding

7.2

Entertainment

5.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Luis Alfonso,Feb 2026

BCN - ALC

In overall good. The crew were very nice as always. I must say it is the tidiest airline when it comes to disembarkation

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 £101, however they can be found for as little as £28.

  • 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

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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.

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