฿13,948+ 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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
— BLQ
12 Jul — 19 Jul1
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 12 June 2026.

Thu 23/715:55
BKK
-
FLR
2 stops23h 40m
เอทิฮัดแอร์เวย์
Thu 30/706:25
FLR
-
BKK
2 stops24h 45m
เอทิฮัดแอร์เวย์
Deal found 8/6฿26,258
Fri 26/612:50
BKK
-
FLR
1 stop14h 45m
Multiple Airlines
Wed 1/717:15
FLR
-
BKK
1 stop15h 45m
Multiple Airlines
Deal found 10/6฿26,880
Wed 18/1114:40
BKK
-
FLR
2 stops26h 00m
เอทิฮัดแอร์เวย์
Sun 22/1119:00
FLR
-
BKK
2 stops17h 00m
เอทิฮัดแอร์เวย์
Deal found 10/6฿27,339
Fri 26/623:40
BKK
-
FLR
2 stops23h 50m
ลุฟท์ฮันซ่า
Wed 1/709:50
FLR
-
BKK
1 stop23h 10m
ลุฟท์ฮันซ่า
Deal found 10/6฿28,485
Mon 27/707:30
BKK
-
FLR
2 stops20h 10m
Multiple Airlines
Mon 3/815:30
FLR
-
BKK
2 stops20h 25m
Multiple Airlines
Deal found 12/6฿30,547
Fri 17/712:50
BKK
-
FLR
1 stop35h 05m
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Wed 5/810:45
FLR
-
BKK
1 stop18h 05m
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 10/6฿31,399
Wed 22/707:30
BKK
-
FLR
2 stops20h 15m
Multiple Airlines
Wed 29/715:20
FLR
-
BKK
2 stops34h 10m
Multiple Airlines
Deal found 7/6฿31,628
Fri 30/1022:55
DMK
-
FLR
2 stops29h 45m
Emirates
Tue 3/1111:25
FLR
-
DMK
2 stops26h 50m
Emirates
Deal found 10/6฿35,688
Wed 18/1122:55
DMK
-
FLR
2 stops29h 45m
Emirates
Sun 22/1111:25
FLR
-
DMK
2 stops26h 50m
Emirates
Deal found 7/6฿46,296

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 12 June 2026.

Return from

฿26,258

One-way from

฿13,948
เอทิฮัดแอร์เวย์
  • เอทิฮัดแอร์เวย์
  • 23/7-30/7
  • 4 total stops
  • 48h 25m total
  • Bangkok to Florence
Search Deals
เอทิฮัดแอร์เวย์
  • เอทิฮัดแอร์เวย์
  • 4/10
  • 2 total stops
  • 24h 25m 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 12 June 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
Fastest return journey

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Fri 26/6

12:50-22:35

1 stop14h 45m

Florence Peretola

Wed 1/7

17:15-14:00

1 stop15h 45m

฿26,880

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Wed 18/11

14:40-10:40

2 stops26h 00m

Florence Peretola

Sun 22/11

19:00-18:00

2 stops17h 00m

฿27,339

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Wed 22/7

07:30-22:45

2 stops20h 15m

Florence Peretola

Wed 29/7

15:20-06:30

2 stops34h 10m

฿31,628

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Thu 23/7

12:50-10:00

1 stop26h 10m

Florence Peretola

Thu 30/7

19:45-09:50

1 stop33h 05m

฿33,199

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Mon 27/7

23:40-09:10

2 stops14h 30m

Florence Peretola

Mon 3/8

13:20-14:00

1 stop19h 40m

฿33,887

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Fri 17/7

07:30-22:40

2 stops20h 10m

Florence Peretola

Wed 5/8

07:00-16:55

2 stops28h 55m

฿34,378

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Mon 31/8

02:30-18:10

2 stops20h 40m

Florence Peretola

Wed 14/10

18:05-19:05

2 stops20h 00m

฿34,574

BangkokFlorence

DMK - FLR

DMKFLR

Bangkok Don Mueang Intl

Fri 30/10

22:55-22:40

2 stops29h 45m

Florence Peretola

Tue 3/11

11:25-20:15

2 stops26h 50m

฿35,688

BangkokFlorence

DMK - FLR

DMKFLR

Bangkok Don Mueang Intl

Wed 18/11

22:55-22:40

2 stops29h 45m

Florence Peretola

Sun 22/11

11:25-20:15

2 stops26h 50m

฿46,296
Cheapest one-way

BangkokFlorence

BKK - FLR

BKKFLR

Bangkok Suvarnabhumi

Sun 4/10

03:15-22:40

2 stops24h 25m

฿13,948

Flights are sorted by cheapest return flights first.

Deals found on 8/6

Showing 1-10 of 15 resultsSorted by cheapest first
1
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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 22 hours 15 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 (14 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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Search flights to Siena by cabin class

Find flights to Siena, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

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How does Cheapflights help users find flights to Siena?

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Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to Siena for you. Better yet — we are completely free to use.

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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