Find flights
Airlines

HK$3,026+ Cheap flights to Siena

— BLQ
6 Oct — 13 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

Mon 19-1023:05 -
1 stop15h 15m
Sun 25-1006:30 -
1 stop20h 05m
Deal found 4-9HK$4,359
Tue 20-1023:05 -
1 stop16h 55m
Tue 27-1019:00 -
1 stop15h 35m
Deal found 5-9HK$4,367
Thu 22-1023:05 -
1 stop16h 55m
Tue 27-1019:00 -
1 stop15h 35m
Deal found 5-9HK$4,539
Fri 23-1023:25 -
1 stop16h 05m
Tue 10-1119:00 -
1 stop15h 35m
Deal found 4-9HK$4,563
Thu 22-1023:25 -
2 stops19h 25m
Tue 27-1019:00 -
1 stop15h 35m
Deal found 5-9HK$4,751
Tue 20-1023:05 -
1 stop16h 55m
Tue 27-1017:00 -
2 stops16h 30m
Deal found 5-9HK$4,963
Sat 17-1023:25 -
1 stop16h 10m
Sat 24-1019:45 -
1 stop31h 50m
Deal found 1-9HK$5,143
Tue 24-1123:30 -
1 stop25h 40m
Thu 10-1214:45 -
1 stop19h 50m
Deal found 3-9HK$5,253
Tue 22-1223:30 -
1 stop16h 25m
Mon 1-309:50 -
1 stop24h 45m
Deal found 5-9HK$5,261

Find flight deals to Siena

Return from

HK$4,359

One-way from

HK$3,026
SWISS
  • SWISS
  • 19-10-25-10
  • 2 total stops
  • 35h 20m total
  • Hong Kong to Florence
Search Deals
Lufthansa
  • Lufthansa
  • 19-10-31-12
  • 1 total stop
  • 16h 20m total
  • Hong Kong 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

Departure

Return

Price

Cheapest return flight
Fastest return journey

Hong KongFlorence

HKG Hong Kong Intl - FLR Florence Peretola

HKGFLR

Hong Kong Intl

Sat 13-2

23:45-09:40

1 stop16h 55m

Florence Peretola

Wed 31-12

00:00-07:00

Nonstop0h 00m

HK$3,308

Hong KongFlorence

HKG Hong Kong Intl - FLR Florence Peretola

HKGFLR

Hong Kong Intl

Sat 17-10

20:15-09:10

2 stops42h 55m

Florence Peretola

Wed 31-12

00:00-07:00

Nonstop0h 00m

HK$3,434

Hong KongFlorence

HKG Hong Kong Intl - FLR Florence Peretola

HKGFLR

Hong Kong Intl

Mon 19-10

20:20-10:35

2 stops20h 15m

Florence Peretola

Wed 31-12

00:00-07:00

Nonstop0h 00m

HK$4,163

Hong KongFlorence

HKG Hong Kong Intl - FLR Florence Peretola

HKGFLR

Hong Kong Intl

Sat 13-2

23:30-18:05

3 stops25h 35m

Florence Peretola

Wed 31-12

00:00-07:00

Nonstop0h 00m

HK$4,383

Hong KongFlorence

HKG Hong Kong Intl - FLR Florence Peretola

HKGFLR

Hong Kong Intl

Mon 19-10

21:30-18:15

3 stops50h 45m

Florence Peretola

Wed 31-12

00:00-07:00

Nonstop0h 00m

HK$4,673

Hong KongFlorence

HKG Hong Kong Intl - FLR Florence Peretola

HKGFLR

Hong Kong Intl

Thu 22-10

23:25-12:50

2 stops19h 25m

Florence Peretola

Tue 27-10

19:00-17:35

1 stop15h 35m

HK$4,751

Hong KongFlorence

HKG Hong Kong Intl - FLR Florence Peretola

HKGFLR

Hong Kong Intl

Tue 20-10

23:05-10:00

1 stop16h 55m

Florence Peretola

Tue 27-10

17:00-16:30

2 stops16h 30m

HK$4,963

Hong KongFlorence

HKG Hong Kong Intl - FLR Florence Peretola

HKGFLR

Hong Kong Intl

Fri 23-10

23:25-12:40

2 stops19h 15m

Florence Peretola

Tue 10-11

14:45-17:35

1 stop19h 50m

HK$5,049

Hong KongFlorence

HKG Hong Kong Intl - FLR Florence Peretola

HKGFLR

Hong Kong Intl

Tue 22-12

23:30-08:55

1 stop16h 25m

Florence Peretola

Mon 1-3

17:00-16:30

2 stops16h 30m

HK$5,660

Hong KongFlorence

HKG Hong Kong Intl - FLR Florence Peretola

HKGFLR

Hong Kong Intl

Tue 24-11

23:30-18:10

1 stop25h 40m

Florence Peretola

Thu 10-12

13:10-16:30

2 stops20h 20m

HK$5,951

Flights are sorted by cheapest return flights first.

Deals found on 1-9

Showing 1-10 of 17 resultsSorted by cheapest first
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

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 15 hours 15 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$4,670

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

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).

Reviews of airlines servicing Siena

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
7.5
Good
2,064 reviews
Check prices

Overall

7.5

Boarding

7.7

Crew

8.2

Comfort

7.4

Food

7.1

Entertainment

6.8

Reviews

1 / 20
6.0
Good

CFJ,Mar 2026

ZRH - VCE

Swiss International Airlines is heading towards becoming a budget carrier. The seats are in comfortable and have absolutely no recline. The crew are friendly, but offer a few services. At least they all line is usually punctual.
SWISS
7.5
Good
2,064 reviews
SWISS
7.5
Good
2,064 reviews
Check prices

Overall

7.5

Boarding

7.7

Crew

8.2

Comfort

7.4

Food

7.1

Entertainment

6.8

Reviews

1 / 20
6.0
Good

CFJ,Mar 2026

ZRH - VCE

Swiss International Airlines is heading towards becoming a budget carrier. The seats are in comfortable and have absolutely no recline. The crew are friendly, but offer a few services. At least they all line is usually punctual.

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$635, however they can be found for as little as HK$607.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Search flights to Siena by cabin class

First Class flights to Siena
Business Class flights to Siena
Prem Economy Class flights to Siena
Economy Class flights to Siena

Fly with Cheapflights

How does Cheapflights help users find flights to Siena?

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?

Cheapflights simply makes it quick and affordable to book flights to Siena by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.