฿25,653+ Cheap flights to Siena
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. 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 17,341 searches and data was last updated on 26 August 2025.
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 26 August 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 26 August 2025.
Cheapflights Fare Finder
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Fly from
Route
Depart
Return
Price
BangkokFlorence
BKK - FLR
BKKFLR
Bangkok Suvarnabhumi
Fri 12/9
12:05-18:15
1 stop35h 10m
Florence Peretola
Mon 15/9
15:30-07:05
1 stop34h 35m
BangkokFlorence
BKK - FLR
BKKFLR
Bangkok Suvarnabhumi
Mon 6/10
02:55-22:40
2 stops24h 45m
Florence Peretola
Tue 14/10
19:00-23:55
2 stops23h 55m
BangkokFlorence
BKK - FLR
BKKFLR
Bangkok Suvarnabhumi
Thu 9/10
21:05-18:15
3 stops26h 10m
Florence Peretola
Thu 16/10
22:00-13:45
3 stops34h 45m
BangkokFlorence
BKK - FLR
BKKFLR
Bangkok Suvarnabhumi
Sat 1/11
02:55-22:40
2 stops25h 45m
Florence Peretola
Fri 7/11
11:40-13:40
2 stops20h 00m
BangkokFlorence
BKK - FLR
BKKFLR
Bangkok Suvarnabhumi
Sun 2/11
12:15-22:40
1 stop16h 25m
Florence Peretola
Fri 7/11
15:30-08:10
1 stop34h 40m
BangkokFlorence
BKK - FLR
BKKFLR
Bangkok Suvarnabhumi
Fri 12/9
05:05-22:40
2 stops22h 35m
Florence Peretola
Mon 15/9
15:30-21:55
2 stops25h 25m
BangkokFlorence
BKK - FLR
BKKFLR
Bangkok Suvarnabhumi
Tue 7/10
12:05-22:30
1 stop15h 25m
Florence Peretola
Tue 14/10
13:00-09:15
1 stop15h 15m
BangkokFlorence
DMK - FLR
DMKFLR
Bangkok Don Mueang Intl
Wed 24/12
21:10-23:15
3 stops32h 05m
BangkokFlorence
DMK - FLR
DMKFLR
Bangkok Don Mueang Intl
Fri 19/12
00:30-22:40
3 stops28h 10m
BangkokFlorence
DMK - FLR
DMKFLR
Bangkok Don Mueang Intl
Thu 25/12
20:20-18:25
3 stops52h 05m
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
How long is the flight to Siena?
On average, a flight from Bangkok to Siena takes 32 hours 20 minutes. Flights to Siena from other popular cities in Thailand will vary in length. Below are a few examples of popular routes and their flight times.
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 mm 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).
FAQs about flying to Siena
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Can Cheapflights find flights to Siena with no change fees?
Yes, we can. To see specific flights to Siena with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights to Siena become cheaper?
Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Siena today and book when you’re ready!