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HK$4,200+ Cheap flights to Siena

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15-6. Fares are subject to change and may not be available on all flights or dates of travel.
— BLQ
10 Jul — 17 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 10 June 2026.

Mon 15-622:20
HKG
-
FLR
1 stop16h 35m
Air France
Mon 22-620:35
FLR
-
HKG
1 stop15h 05m
Air France
Deal found 7-6HK$4,200
Tue 22-1223:45
HKG
-
FLR
1 stop16h 55m
Multiple Airlines
Mon 1-318:55
FLR
-
HKG
1 stop15h 40m
Multiple Airlines
Deal found 5-6HK$4,835
Tue 22-1223:45
HKG
-
FLR
1 stop16h 55m
Lufthansa
Mon 1-310:20
FLR
-
HKG
1 stop23h 10m
Lufthansa
Deal found 5-6HK$4,976
Tue 7-723:25
HKG
-
FLR
1 stop16h 15m
Multiple Airlines
Fri 7-819:45
FLR
-
HKG
1 stop14h 50m
Multiple Airlines
Deal found 6-6HK$5,572
Mon 6-723:05
HKG
-
FLR
1 stop16h 55m
SWISS
Fri 7-819:45
FLR
-
HKG
1 stop14h 50m
SWISS
Deal found 6-6HK$5,674
Thu 12-1119:35
HKG
-
FLR
2 stops22h 05m
Etihad Airways
Mon 16-1106:25
FLR
-
HKG
2 stops19h 05m
Etihad Airways
Deal found 9-6HK$6,034
Sun 28-623:25
HKG
-
FLR
1 stop16h 15m
Multiple Airlines
Tue 11-819:45
FLR
-
HKG
1 stop14h 50m
Multiple Airlines
Deal found 6-6HK$6,073
Sun 5-723:25
HKG
-
FLR
1 stop16h 15m
Multiple Airlines
Fri 7-819:45
FLR
-
HKG
1 stop14h 50m
Multiple Airlines
Deal found 6-6HK$6,167

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 70,647 searches and data was last updated on 10 June 2026.

Return from

HK$5,572

One-way from

HK$6,246

Popular in

September

Cheapest in

February

Average price

HK$9,302
SWISS
  • SWISS
  • 7-7-7-8
  • 2 total stops
  • 31h 05m total
  • Hong Kong to Florence
Search Deals
British Airways
  • British Airways
  • 26-9
  • 1 total stop
  • 29h 35m total
  • Hong Kong to Siena
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (HK$1,089 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (HK$329 potential savings vs. average return price).
Search Deals
Average for return flights in June 2026
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 70,647 searches and data was last updated on 10 June 2026.
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

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Thu 12-11

19:35-10:40

2 stops22h 05m

Florence Peretola

Mon 16-11

06:25-08:30

2 stops19h 05m

HK$6,246

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Thu 12-11

21:00-18:15

3 stops28h 15m

Florence Peretola

Mon 16-11

15:30-21:50

2 stops23h 20m

HK$7,123

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Mon 20-7

23:05-10:00

1 stop16h 55m

Florence Peretola

Mon 27-7

14:30-15:20

1 stop18h 50m

HK$7,170

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Sat 27-6

01:25-08:25

2 stops37h 00m

Florence Peretola

Thu 13-8

06:45-21:55

2 stops33h 10m

HK$7,578

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Thu 25-6

01:25-22:55

2 stops51h 30m

Florence Peretola

Wed 12-8

06:45-21:55

2 stops33h 10m

HK$7,656
Fastest return journey

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Thu 23-7

23:25-09:30

1 stop16h 05m

Florence Peretola

Thu 30-7

13:50-15:20

1 stop19h 30m

HK$7,790

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Mon 20-7

22:20-16:50

2 stops24h 30m

Florence Peretola

Mon 27-7

17:35-15:25

1 stop15h 50m

HK$7,837
Cheapest one-way
Fastest single journey

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Sat 26-9

22:45-22:20

1 stop29h 35m

HK$6,246

Hong KongFlorence

HKG - FLR

HKGFLR

Hong Kong Intl

Sat 26-9

19:10-22:40

2 stops33h 30m

HK$6,622

Flights are sorted by cheapest return flights first.

Deals found on 5-6

Sorted by cheapest first

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 15 hours 35 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$4,668

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 10 June 2026.
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
1,968 reviews
Check prices

Entertainment

6.8

Crew

8.3

Boarding

7.7

Comfort

7.4

Food

7.1

Overall

7.5

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
1,968 reviews
SWISS
7.5
Good
1,968 reviews
Check prices

Entertainment

6.8

Crew

8.3

Boarding

7.7

Comfort

7.4

Food

7.1

Overall

7.5

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$634, however they can be found for as little as HK$606.

  • 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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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.

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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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