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HK$3,695+ 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 23-9. Fares are subject to change and may not be available on all flights or dates of travel.
— BLQ
7 Sep — 14 Sep1
1 adult

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 70,647 searches and data was last updated on 2 September 2025.

Return from

HK$5,028

One-way from

HK$3,695

Popular in

July

Cheapest in

May

Average price

HK$8,598
28-10-9-11
  • 28-10-9-11
  • 4 total stops
  • 41h 40m total
  • Hong Kong to Florence
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Lufthansa
  • Lufthansa
  • 23-9
  • 1 total stop
  • 16h 15m total
  • Hong Kong to Siena
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Highest demand for flights based on searches. 5% potential increase in price (HK$3,056 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (HK$1,870 potential savings vs. average return price).
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Average for return flights in September 2025
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Find flight deals to Siena

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 2 September 2025.

Tue 28-1008:30HKG - FLR
2 stops21h 10mMultiple Airlines
Sun 9-1115:30FLR - HKG
2 stops20h 30mMultiple Airlines
Deal found 31-8HK$5,028
Wed 15-1020:15HKG - FLR
2 stops31h 05mMultiple Airlines
Wed 22-1022:00FLR - HKG
3 stops33h 05mMultiple Airlines
Deal found 31-8HK$5,168
Wed 15-1023:25HKG - FLR
1 stop16h 15mLufthansa
Wed 22-1014:45FLR - HKG
1 stop19h 00mLufthansa
Deal found 31-8HK$5,176
Tue 28-1023:45HKG - FLR
1 stop16h 55mLufthansa
Sun 9-1119:10FLR - HKG
1 stop14h 15mLufthansa
Deal found 31-8HK$5,332
Thu 16-1023:25HKG - FLR
1 stop19h 35mLufthansa
Thu 23-1018:55FLR - HKG
1 stop14h 50mLufthansa
Deal found 1-9HK$5,550
Thu 16-1008:30HKG - FLR
2 stops20h 10mMultiple Airlines
Thu 23-1006:05FLR - HKG
3 stops30h 55mMultiple Airlines
Deal found 1-9HK$6,174
Sat 13-1222:40HKG - FLR
1 stop17h 15mAir France
Mon 5-106:50FLR - HKG
1 stop28h 40mAir France
Deal found 1-9HK$6,774

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 70,647 searches and data was last updated on 2 September 2025.
Use the filters below to find and compare flights to Siena that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Tue 28-10

08:30-22:40

2 stops21h 10m

Florence Peretola

Sun 9-11

15:30-19:00

2 stops20h 30m

HK$5,028

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Wed 15-10

20:15-21:20

2 stops31h 05m

Florence Peretola

Wed 22-10

22:00-13:05

3 stops33h 05m

HK$5,168

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Wed 15-10

23:25-09:40

1 stop16h 15m

Florence Peretola

Wed 22-10

14:45-15:45

1 stop19h 00m

HK$5,176

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Thu 16-10

08:30-22:40

2 stops20h 10m

Florence Peretola

Thu 23-10

11:20-21:05

2 stops27h 45m

HK$5,270

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Tue 28-10

23:45-09:40

1 stop16h 55m

Florence Peretola

Sun 9-11

19:10-16:25

1 stop14h 15m

HK$5,332

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Thu 16-10

23:25-13:00

1 stop19h 35m

Florence Peretola

Thu 23-10

18:55-15:45

1 stop14h 50m

HK$5,550

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Sat 13-12

22:40-08:55

1 stop17h 15m

Florence Peretola

Mon 5-1

06:50-18:30

1 stop28h 40m

HK$6,774

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Tue 23-9

23:25-09:40

1 stop16h 15m

HK$3,695

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Tue 9-9

20:05-22:55

3 stops32h 50m

HK$3,788

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Mon 22-9

23:15-09:45

1 stop16h 30m

HK$3,835

Flights are sorted by cheapest return flights first.

Deals found on 31-8

Showing 1-10 of 15 results
1
2

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 Hong Kong to Siena takes 20 hours 0 minutes. Flights to Siena from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Siena?

The most popular airline flying from Hong Kong to Siena is SWISS.

SWISS
SWISS
From HK$579

What are the cheapest airlines that fly to Siena?

The cheapest airline flying from Hong Kong to Siena is SWISS.

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).

Reviews of airlines servicing Siena

Get insights into the airlines that provide service to Siena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Siena. Reviews last updated 2 September 2025.
See what other customers who have flown with SWISS to Italy have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.6
Good
1,717 reviews
Check prices

Boarding

7.7

Entertainment

6.8

Food

7.1

Overall

7.6

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

AMS - ZRH

Efficient, professional on board attendants. Food offering just right. On time.
SWISS
7.6
Good
1,717 reviews
SWISS
7.6
Good
1,717 reviews
Check prices

Boarding

7.7

Entertainment

6.8

Food

7.1

Overall

7.6

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

AMS - ZRH

Efficient, professional on board attendants. Food offering just right. On time.

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.

  • What is the best airline to fly to Siena?

    Based on reviews from Cheapflights users, SWISS is rated the highest out of the airlines that fly to Siena.

  • How much is a return flight to Siena?

    A return flight to Siena will typically cost around HK$136, however they can be found for as little as HK$71.

  • 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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Cheapflights makes it easy to find Siena flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets to Siena?

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Can Cheapflights find flights to Siena with no change fees?

Certainly. Search results for flights to Siena shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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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