฿11,995+ 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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
— BLQ
25 Jan — 1 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Siena in 2025

Enter your travel dates to find the best prices.

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 26 December 2025.

Sun 8/222:05BKK - FLR
3 stops27h 40mMultiple Airlines
Sun 15/215:00FLR - BKK
3 stops35h 15mMultiple Airlines
Deal found 25/12฿24,238
Mon 9/211:35BKK - FLR
1 stop27h 20mแอร์ฟร้านซ์
Mon 16/220:45FLR - BKK
1 stop30h 30mแอร์ฟร้านซ์
Deal found 26/12฿26,718
Wed 21/108:55BKK - FLR
2 stops19h 45mเอทิฮัดแอร์เวย์
Sun 25/119:10FLR - BKK
2 stops22h 15mเอทิฮัดแอร์เวย์
Deal found 24/12฿27,183
Thu 22/112:15BKK - FLR
1 stop16h 25mITA Airways
Mon 26/111:40FLR - BKK
1 stop14h 30mITA Airways
Deal found 23/12฿28,733
Sun 8/200:55BKK - FLR
2 stops28h 00mMultiple Airlines
Mon 16/212:20FLR - BKK
2 stops34h 25mMultiple Airlines
Deal found 26/12฿25,850
Wed 21/112:15BKK - FLR
1 stop28h 40mITA Airways
Sun 25/106:35FLR - BKK
1 stop19h 35mITA Airways
Deal found 24/12฿28,826
Sat 7/222:10BKK - FLR
3 stops30h 30mMultiple Airlines
Sat 14/206:35FLR - BKK
3 stops31h 15mMultiple Airlines
Deal found 24/12฿27,152

Find flight deals to Siena

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 December 2025.

Return from

฿24,238

One-way from

฿11,995
8/2-15/2
  • 8/2-15/2
  • 6 total stops
  • 62h 55m total
  • Bangkok to Florence
Search Deals
1/3
  • 1/3
  • 3 total stops
  • 27h 40m total
  • Bangkok to Siena
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 17,341 searches and data was last updated on 26 December 2025.
Use the filters below to find and compare flights to Siena that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Sun 8/2

22:05-19:45

3 stops27h 40m

Florence Peretola

Sun 15/2

15:00-08:15

3 stops35h 15m

฿24,238

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Sun 8/2

00:55-22:55

2 stops28h 00m

Florence Peretola

Mon 16/2

12:20-04:45

2 stops34h 25m

฿25,850

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Mon 9/2

11:35-08:55

1 stop27h 20m

Florence Peretola

Mon 16/2

20:45-09:15

1 stop30h 30m

฿26,718

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Sat 7/2

22:10-22:40

3 stops30h 30m

Florence Peretola

Sat 14/2

06:35-19:50

3 stops31h 15m

฿27,152

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Wed 21/1

08:55-22:40

2 stops19h 45m

Florence Peretola

Sun 25/1

19:10-23:25

2 stops22h 15m

฿27,183

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Thu 22/1

12:15-22:40

1 stop16h 25m

Florence Peretola

Mon 26/1

11:40-08:10

1 stop14h 30m

฿28,733

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Wed 21/1

12:15-10:55

1 stop28h 40m

Florence Peretola

Sun 25/1

06:35-08:10

1 stop19h 35m

฿28,826

BangkokFlorence

DMK - FLR

DMKFLR

Bangkok Don Mueang Intl

Sun 1/3

21:25-23:00

3 stops31h 35m

฿14,537

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Sun 1/3

12:15-22:40

1 stop16h 25m

฿22,379

BangkokFlorence

DMK - FLR

DMKFLR

Bangkok Don Mueang Intl

Mon 2/3

13:40-22:40

3 stops39h 00m

฿36,544

Flights are sorted by cheapest return flights first.

Deals found on 26/12

Showing 1-10 of 27 results
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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

How long is the flight to Siena?

On average, a flight from Bangkok to Siena takes 35 hours 45 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

  • 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.

  • Where does the fastest flight to Siena depart from?

    For those looking to save time traveling to Siena, Bangkok offers the quickest one-way flight (19 hours 45 minutes).

  • Does Bologna Guglielmo Marconi have rental cars?

    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 km away from Bologna Guglielmo Marconi).

See more FAQs

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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!

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