฿12,191+ 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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
— BLQ
7 Apr — 14 Apr1
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 8 March 2026.

Tue 21/415:05
BKK
-
FLR
2 stops24h 35m
เอทิฮัดแอร์เวย์
Tue 28/419:00
FLR
-
BKK
2 stops23h 50m
เอทิฮัดแอร์เวย์
Deal found 7/3฿22,571
Thu 9/415:05
BKK
-
FLR
2 stops24h 35m
เอทิฮัดแอร์เวย์
Tue 5/506:25
FLR
-
BKK
2 stops24h 25m
เอทิฮัดแอร์เวย์
Deal found 7/3฿23,778
Mon 20/409:45
BKK
-
FLR
2 stops29h 55m
เอทิฮัดแอร์เวย์
Mon 27/419:00
FLR
-
BKK
2 stops23h 50m
เอทิฮัดแอร์เวย์
Deal found 5/3฿23,841
Thu 9/415:05
BKK
-
FLR
2 stops24h 35m
เอทิฮัดแอร์เวย์
Sun 3/515:30
FLR
-
BKK
2 stops21h 40m
เอทิฮัดแอร์เวย์
Deal found 7/3฿24,032
Fri 12/609:15
BKK
-
FLR
2 stops18h 25m
เอทิฮัดแอร์เวย์
Tue 16/606:25
FLR
-
BKK
2 stops19h 20m
เอทิฮัดแอร์เวย์
Deal found 4/3฿24,381
Mon 20/403:15
BKK
-
FLR
2 stops24h 25m
Multiple Airlines
Tue 28/419:00
FLR
-
BKK
3 stops33h 55m
Multiple Airlines
Deal found 7/3฿25,841
Thu 2/402:10
BKK
-
FLR
2 stops25h 30m
Multiple Airlines
Tue 28/419:00
FLR
-
BKK
3 stops33h 55m
Multiple Airlines
Deal found 6/3฿27,079
Fri 3/409:15
BKK
-
FLR
2 stops18h 25m
เอทิฮัดแอร์เวย์
Thu 30/419:00
FLR
-
BKK
2 stops23h 50m
เอทิฮัดแอร์เวย์
Deal found 6/3฿27,175
Fri 3/409:45
BKK
-
FLR
2 stops17h 55m
เอทิฮัดแอร์เวย์
Tue 28/406:25
FLR
-
BKK
2 stops24h 25m
เอทิฮัดแอร์เวย์
Deal found 6/3฿27,270
Tue 14/409:15
BKK
-
FLR
2 stops18h 25m
เอทิฮัดแอร์เวย์
Mon 11/519:00
FLR
-
BKK
2 stops18h 10m
เอทิฮัดแอร์เวย์
Deal found 7/3฿27,302
Thu 2/418:05
BKK
-
FLR
2 stops29h 10m
Multiple Airlines
Mon 27/419:00
FLR
-
BKK
2 stops18h 10m
Multiple Airlines
Deal found 6/3฿27,492
Thu 28/508:10
DMK
-
FLR
3 stops44h 00m
Multiple Airlines
Sat 27/606:55
FLR
-
DMK
3 stops25h 05m
Multiple Airlines
Deal found 4/3฿28,254

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 17,341 searches and data was last updated on 8 March 2026.

Return from

฿22,571

One-way from

฿12,191
เอทิฮัดแอร์เวย์
  • เอทิฮัดแอร์เวย์
  • 21/4-28/4
  • 4 total stops
  • 48h 25m total
  • Bangkok to Florence
Search Deals
เอทิฮัดแอร์เวย์
  • เอทิฮัดแอร์เวย์
  • 4/4
  • 2 total stops
  • 24h 35m 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 8 March 2026.
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

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Tue 14/4

03:15-22:40

2 stops24h 25m

Florence Peretola

Tue 12/5

06:25-11:50

2 stops24h 25m

฿23,778

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Fri 12/6

09:15-22:40

2 stops18h 25m

Florence Peretola

Tue 16/6

06:25-06:45

2 stops19h 20m

฿24,381

BangkokFlorence

DMK - FLR

DMKFLR

Bangkok Don Mueang Intl

Thu 28/5

08:10-23:10

3 stops44h 00m

Florence Peretola

Sat 27/6

06:55-13:00

3 stops25h 05m

฿28,254

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Sat 11/4

15:05-10:40

2 stops24h 35m

Florence Peretola

Wed 6/5

19:00-18:10

2 stops18h 10m

฿28,730
Fastest return journey

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Thu 28/5

09:15-22:40

2 stops18h 25m

Florence Peretola

Sat 27/6

19:00-18:10

2 stops18h 10m

฿31,587

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Sun 5/4

15:05-14:10

2 stops28h 05m

Florence Peretola

Mon 13/4

19:00-23:50

2 stops23h 50m

฿33,619

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Wed 27/5

01:45-21:30

2 stops24h 45m

Florence Peretola

Sat 27/6

08:15-06:05

1 stop16h 50m

฿36,159

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Thu 19/3

09:30-22:40

2 stops19h 10m

Florence Peretola

Mon 23/3

11:35-12:55

2 stops19h 20m

฿36,222

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Fri 20/3

02:55-22:40

3 stops25h 45m

Florence Peretola

Wed 25/3

15:00-20:20

2 stops23h 20m

฿39,968

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Fri 12/6

07:05-18:20

1 stop16h 15m

Florence Peretola

Tue 16/6

19:05-05:30

1 stop29h 25m

฿44,603

Flights are sorted by cheapest return flights first.

Deals found on 6/3

Showing 1-10 of 30 resultsSorted by cheapest first
1
2
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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 25 hours 40 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 (18 hours 25 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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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!

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