฿11,520+ Cheap flights to Siena

— BLQ
28 Sep — 5 Oct1
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

Thu 17/923:40 -
1 stop27h 35m
Wed 23/914:50 -
1 stop19h 00m
Deal found 28/8฿25,880
Mon 7/912:35 -
1 stop15h 00m
Fri 11/907:00 -
1 stop26h 50m
Deal found 24/8฿26,342
Sun 20/912:35 -
1 stop15h 00m
Thu 24/911:00 -
1 stop22h 50m
Deal found 26/8฿26,573
Wed 14/1015:55 -
2 stops23h 40m
Mon 19/1019:00 -
2 stops23h 55m
Deal found 24/8฿26,837
Thu 17/912:35 -
1 stop15h 00m
Wed 23/917:15 -
2 stops16h 35m
Deal found 28/8฿27,002
Fri 9/1009:55 -
2 stops35h 35m
Fri 16/1010:00 -
2 stops21h 55m
Deal found 25/8฿28,388
Wed 14/1021:00 -
3 stops24h 50m
Mon 19/1015:30 -
2 stops27h 25m
Deal found 24/8฿28,554
Sun 22/1123:00 -
2 stops29h 40m
Thu 26/1111:25 -
2 stops26h 45m
Deal found 27/8฿33,076

Find flight deals to Siena

Return from

฿25,880

One-way from

฿11,520
ออสเตรียนแอร์ไลน์
  • ออสเตรียนแอร์ไลน์
  • 17/9-23/9
  • 2 total stops
  • 46h 35m total
  • Bangkok to Florence
Search Deals
8/10
  • 8/10
  • 3 total stops
  • 30h 55m total
  • Bangkok to Siena
Search Deals

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

Cheapest return flight
Fastest return journey

BangkokFlorence

BKK Bangkok Suvarnabhumi - FLR Florence Peretola

BKKFLR

Bangkok Suvarnabhumi

Thu 17/9

12:35-22:35

1 stop15h 00m

Florence Peretola

Wed 23/9

17:15-14:50

2 stops16h 35m

฿27,002

BangkokFlorence

BKK Bangkok Suvarnabhumi - FLR Florence Peretola

BKKFLR

Bangkok Suvarnabhumi

Wed 14/10

21:00-16:50

3 stops24h 50m

Florence Peretola

Mon 19/10

15:30-23:55

2 stops27h 25m

฿28,554

BangkokFlorence

BKK Bangkok Suvarnabhumi - FLR Florence Peretola

BKKFLR

Bangkok Suvarnabhumi

Fri 9/10

21:00-22:40

2 stops30h 40m

Florence Peretola

Tue 13/10

06:25-12:10

2 stops24h 45m

฿29,115

BangkokFlorence

BKK Bangkok Suvarnabhumi - FLR Florence Peretola

BKKFLR

Bangkok Suvarnabhumi

Sat 19/9

03:15-20:00

3 stops21h 45m

Florence Peretola

Thu 24/9

07:00-14:05

3 stops26h 05m

฿29,346

BangkokFlorence

BKK Bangkok Suvarnabhumi - FLR Florence Peretola

BKKFLR

Bangkok Suvarnabhumi

Sat 10/10

09:15-22:55

2 stops18h 40m

Florence Peretola

Sat 17/10

18:15-17:25

2 stops18h 10m

฿30,006

BangkokFlorence

BKK Bangkok Suvarnabhumi - FLR Florence Peretola

BKKFLR

Bangkok Suvarnabhumi

Sun 11/10

20:20-22:40

3 stops31h 20m

Florence Peretola

Sun 18/10

15:30-16:55

2 stops20h 25m

฿30,402

BangkokFlorence

BKK Bangkok Suvarnabhumi - FLR Florence Peretola

BKKFLR

Bangkok Suvarnabhumi

Mon 7/9

12:35-22:35

1 stop15h 00m

Florence Peretola

Fri 11/9

19:45-20:00

2 stops19h 15m

฿30,633

BangkokFlorence

BKK Bangkok Suvarnabhumi - FLR Florence Peretola

BKKFLR

Bangkok Suvarnabhumi

Mon 7/9

15:55-11:30

2 stops24h 35m

Florence Peretola

Fri 11/9

10:00-16:55

3 stops25h 55m

฿30,831

BangkokFlorence

DMK Bangkok Don Mueang Intl - FLR Florence Peretola

DMKFLR

Bangkok Don Mueang Intl

Sun 22/11

23:00-22:40

2 stops29h 40m

Florence Peretola

Thu 26/11

11:25-20:10

2 stops26h 45m

฿33,076
Cheapest one-way

BangkokFlorence

BKK Bangkok Suvarnabhumi - FLR Florence Peretola

BKKFLR

Bangkok Suvarnabhumi

Wed 7/10

09:15-12:45

3 stops32h 30m

฿13,336

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 22 resultsSorted by cheapest first
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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

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 23 hours 0 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

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

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 10 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. Fly On Hotel 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.

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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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