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Cheap Flights from Brussels to Siena

Compare Brussels to Siena flight deals

Find the cheapest month or even day of the year to fly to Siena

Book the best Siena fare with no extra fees

Flight deals from Brussels to Siena

Looking for a cheap last-minute deal or the best round-trip flight from Brussels to Siena? Find the lowest prices on one-way and round-trip tickets right here.
Florence.AED 306 per passenger.Departing Tue, Jun 30, returning Thu, Jul 9.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Tue, Jun 30, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Thu, Jul 9, arriving in Brussels International.Price includes taxes and charges.From AED 306, select.
Florence.AED 306 per passenger.Departing Tue, Jun 16, returning Thu, Jun 18.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Tue, Jun 16, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Thu, Jun 18, arriving in Brussels International.Price includes taxes and charges.From AED 306, select.
Florence.AED 321 per passenger.Departing Tue, May 26, returning Thu, Jun 11.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Tue, May 26, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Thu, Jun 11, arriving in Brussels International.Price includes taxes and charges.From AED 321, select.
Florence.AED 331 per passenger.Departing Thu, Dec 31, returning Thu, Jan 14.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Thu, Dec 31, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Thu, Jan 14, arriving in Brussels International.Price includes taxes and charges.From AED 331, select.
Florence.AED 340 per passenger.Departing Tue, Jul 7, returning Thu, Jul 9.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Tue, Jul 7, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Thu, Jul 9, arriving in Brussels International.Price includes taxes and charges.From AED 340, select.
Florence.AED 341 per passenger.Departing Thu, Dec 3, returning Sun, Dec 13.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Thu, Dec 3, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Sun, Dec 13, arriving in Brussels International.Price includes taxes and charges.From AED 341, select.
Florence.AED 352 per passenger.Departing Sun, Nov 22, returning Sun, Nov 29.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Sun, Nov 22, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Sun, Nov 29, arriving in Brussels International.Price includes taxes and charges.From AED 352, select.
Florence.AED 352 per passenger.Departing Tue, Sep 22, returning Tue, Oct 13.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Tue, Sep 22, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Tue, Oct 13, arriving in Brussels International.Price includes taxes and charges.From AED 352, select.
Florence.AED 352 per passenger.Departing Sun, Nov 22, returning Sun, Dec 13.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Sun, Nov 22, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Sun, Dec 13, arriving in Brussels International.Price includes taxes and charges.From AED 352, select.
Florence.AED 352 per passenger.Departing Sun, Oct 25, returning Sun, Nov 15.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Sun, Oct 25, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Sun, Nov 15, arriving in Brussels International.Price includes taxes and charges.From AED 352, select.
Florence.AED 353 per passenger.Departing Tue, Aug 11, returning Tue, Sep 1.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Tue, Aug 11, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Tue, Sep 1, arriving in Brussels International.Price includes taxes and charges.From AED 353, select.
Florence.AED 369 per passenger.Departing Tue, Apr 14, returning Tue, Apr 28.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Tue, Apr 14, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Tue, Apr 28, arriving in Brussels International.Price includes taxes and charges.From AED 369, select.
Florence.AED 373 per passenger.Departing Tue, Sep 15, returning Thu, Sep 24.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Tue, Sep 15, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Thu, Sep 24, arriving in Brussels International.Price includes taxes and charges.From AED 373, select.
Florence.AED 386 per passenger.Departing Tue, May 5, returning Tue, May 12.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Tue, May 5, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Tue, May 12, arriving in Brussels International.Price includes taxes and charges.From AED 386, select.
Florence.AED 386 per passenger.Departing Tue, Apr 21, returning Tue, May 12.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Tue, Apr 21, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Tue, May 12, arriving in Brussels International.Price includes taxes and charges.From AED 386, select.
Florence.AED 386 per passenger.Departing Sun, Oct 25, returning Thu, Oct 29.Round-trip flight with Vueling Airlines.Outbound direct flight with Vueling Airlines departing from Brussels International on Sun, Oct 25, arriving in Florence.Inbound direct flight with Vueling Airlines departing from Florence on Thu, Oct 29, arriving in Brussels International.Price includes taxes and charges.From AED 386, select.

Brussels to Siena: Flight information

The things to know before you go.
Fly intoFlorence Airport
Distance to Siena55.5 km
Cheapest flightAED 306
Cheapest month to flyJune
Most popular airlineUnited
Average flight time1 hr, 49 mins

Find the cheapest month to fly from Brussels to Siena

We’re always keeping an eye on fares, so you can find the best flight deal in seconds. It looks like Brussels to Siena flights are currently cheapest in June. We’ve based this on flights into Florence Airport.
Mar
from AED 468
Apr
from AED 369
May
from AED 386
Jun
from AED 306
Jul
from AED 340
Aug
from AED 453
Sep
from AED 373
Oct
from AED 386
Nov
from AED 352
Dec
from AED 341
Jan
from AED 607
Feb
Find prices

Check out these Siena hotels

Ready to plan your stay? Other travelers rate these Siena hotels for cleanliness, service, and location.
Residenza d'epoca San Martino 29
0.42 km from city center
‎AED 491
Per night
AmiRooms Affittacamere
0.10 km from city center
‎AED 479
Per night
Casa Ciseri
0.01 km from city center
‎AED 1,060
Per night
Residenza d'epoca San Martino 29
0.42 km from city center
‎AED 491
Per night
AmiRooms Affittacamere
0.10 km from city center
‎AED 479
Per night
Casa Ciseri
0.01 km from city center
‎AED 1,060
Per night
Explore top-rated hotels

Finding cheap flights from Brussels to Siena: Frequently asked questions

There are two (2) airports near Siena: Florence Airport and Pisa International Airport.
The best price we found for a round-trip flight from Brussels to Siena is AED 306. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
The average flight time to Siena is 1 hour and 49 minutes. We've calculated this based on journeys to Florence Airport.
United, Brussels Airlines, and Vueling Airlines all offer direct flights to Florence Airport.
We’ve found roughly 16 per week flying from Brussels to Florence Airport.
We've checked every Brussels to Siena fare we could find, and the cheapest upcoming date to fly seems to be on Tuesday, June 16, 2026. Overall, the cheapest month to fly from Brussels to Siena is usually June.
If you're flying from Brussels, the cheapest airport near Siena is Florence – which is 55.5 km away from the center of Siena. We've found flights to this airport from AED 306.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Brussels to Siena on Tuesday, June 16, 2026.
No airlines currently offer direct flights between Brussels and Siena. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Siena but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Siena is around 40 days in advance, so don’t leave your flight to the last minute.
Florence Airport is 55.5km from Siena and Pisa International Airport is 85.8km from Siena.
Florence Airport is closest to Siena, at around 55.5 km away.
In March, the average temperature is usually around 8°C. August is typically the warmest month in Siena, when it usually averages around 31°C. You can expect the least rain in July. The coldest month is January, with temperatures averaging 1°C. The rainiest month is November.
The cheapest airline that flies to Siena is Vueling Airlines.

Plan the rest of your trip from Brussels to Siena