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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BLQ
30 Jan — 6 Feb1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Siena are usually found in January or March, booked 72 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday
Cheap flight deals from London to Siena
Enter your travel dates to find the best prices.
Cheapest flights from London to Siena
Explore the most affordable flight options available from London to Siena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 December 2025.
Wed 31/1219:05LCY - FLR
2 stops18h 10mITA Airways
Fri 9/111:40FLR - LCY
2 stops11h 10mITA Airways
Deal found 29/12£179
Wed 31/1211:35LCY - FLR
Nonstop2h 05mBritish Airways
Fri 9/111:50FLR - LCY
Nonstop2h 10mBritish Airways
Deal found 29/12£189
Wed 31/1219:05LCY - FLR
2 stops22h 20mMultiple Airlines
Fri 9/111:50FLR - LCY
Nonstop2h 10mMultiple Airlines
Deal found 29/12£193
Wed 31/1207:55LHR - FLR
Nonstop2h 25mBritish Airways
Fri 9/112:45FLR - LHR
Nonstop2h 35mBritish Airways
Deal found 29/12£194
Wed 31/1219:55LGW - FLR
Nonstop2h 10mMultiple Airlines
Sun 4/118:45FLR - LGW
2 stops41h 10mMultiple Airlines
Deal found 30/12£221
Wed 31/1219:30LHR - FLR
1 stop14h 30mScandinavian Airlines
Sun 4/111:50FLR - LHR
1 stop7h 40mScandinavian Airlines
Deal found 29/12£244
Wed 31/1219:55LGW - FLR
Nonstop2h 10mVueling
Sun 4/121:00FLR - LGW
1 stop12h 20mVueling
Deal found 29/12£251
Wed 31/1220:05LHR - FLR
1 stop11h 45mSWISS
Fri 9/109:35FLR - LHR
1 stop7h 45mSWISS
Deal found 29/12£259
Tue 30/1208:55LGW - FLR
Nonstop2h 15mVueling
Sat 3/112:55FLR - LGW
Nonstop2h 20mVueling
Deal found 29/12£260
Tue 30/1216:40LHR - FLR
1 stop4h 20mLufthansa
Fri 2/117:15FLR - LHR
1 stop6h 40mLufthansa
Deal found 30/12£319
Wed 31/1219:05LCY - FLR
2 stops18h 10mITA Airways
Sun 4/119:10FLR - LCY
2 stops13h 40mITA Airways
Deal found 30/12£319
Wed 31/1214:50LHR - FLR
1 stop22h 30mMultiple Airlines
Fri 2/117:15FLR - LHR
1 stop6h 40mMultiple Airlines
Deal found 30/12£323
Best flights from London to Siena
Discover carefully curated flight deals from London to Siena that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 December 2025.
Tue 5/518:35LGW - FLR
1 stop12h 50mVueling
Thu 7/514:20FLR - LGW
Nonstop2h 30mVueling
Deal found 30/12£90
Sat 10/119:55LGW - FLR
Nonstop2h 10mMultiple Airlines
Mon 12/107:50FLR - LGW
Nonstop2h 20mMultiple Airlines
Deal found 30/12£93
Sun 8/208:30STN - FLR
Nonstop2h 15mBritish Airways
Sat 14/215:15FLR - STN
Nonstop2h 15mBritish Airways
Deal found 30/12£102
Fri 16/117:10LHR - FLR
1 stop23h 55mSWISS
Fri 30/118:55FLR - LHR
1 stop3h 45mSWISS
Deal found 29/12£146
Sat 17/108:40LHR - FLR
1 stop6h 40mKLM
Mon 19/112:20FLR - LHR
1 stop4h 45mKLM
Deal found 29/12£159
Tue 3/311:30LCY - FLR
2 stops10h 10mITA Airways
Tue 10/315:30FLR - LCY
2 stops17h 20mITA Airways
Deal found 29/12£172
Tue 26/506:40LHR - FLR
1 stop11h 25mScandinavian Airlines
Fri 29/510:00FLR - LHR
1 stop8h 00mScandinavian Airlines
Deal found 30/12£174
Sat 11/419:50LGW - FLR
Nonstop2h 15mVueling
Mon 13/417:45FLR - LGW
Nonstop2h 25mVueling
Deal found 29/12£97
Wed 4/306:50LHR - FLR
2 stops14h 50mBrussels Airlines
Sun 8/311:55FLR - LHR
1 stop10h 25mBrussels Airlines
Deal found 30/12£196
Fri 27/219:55LGW - FLR
Nonstop2h 10mVueling
Sun 1/318:00FLR - LGW
Nonstop2h 15mVueling
Deal found 29/12£110
Sun 1/308:30STN - FLR
Nonstop2h 15mBritish Airways
Sat 7/315:15FLR - STN
Nonstop2h 15mBritish Airways
Deal found 29/12£124
Thu 5/207:40STN - FLR
1 stop8h 10mMultiple Airlines
Thu 12/214:35FLR - STN
1 stop10h 00mMultiple Airlines
Deal found 29/12£128
Mon 20/421:05LGW - FLR
1 stop10h 20mVueling
Mon 27/406:55FLR - LGW
Nonstop2h 25mVueling
Deal found 30/12£113
Fri 23/106:00STN - FLR
2 stops15h 30mMultiple Airlines
Mon 26/110:45FLR - STN
2 stops22h 30mMultiple Airlines
Deal found 31/12£130
Sun 8/206:00LHR - FLR
1 stop25h 50mSWISS
Sat 14/215:00FLR - LHR
1 stop3h 50mSWISS
Deal found 30/12£146
Mon 2/309:55LCY - FLR
Nonstop2h 05mBritish Airways
Fri 6/315:20FLR - LCY
Nonstop2h 10mBritish Airways
Deal found 29/12£139
Wed 8/412:20LTN - FLR
1 stop9h 35mMultiple Airlines
Wed 15/413:25FLR - LTN
1 stop9h 20mMultiple Airlines
Deal found 31/12£135
Sun 8/312:35LCY - FLR
Nonstop2h 10mBritish Airways
Thu 12/315:20FLR - LCY
Nonstop2h 10mBritish Airways
Deal found 30/12£139
Fri 20/319:55LGW - FLR
Nonstop2h 10mVueling
Mon 23/314:45FLR - LGW
1 stop9h 35mVueling
Deal found 30/12£131
Fri 23/109:20LCY - FLR
1 stop4h 00mSWISS
Mon 26/109:40FLR - LCY
1 stop4h 15mSWISS
Deal found 31/12£165
Thu 16/405:30LTN - FLR
1 stop6h 45mMultiple Airlines
Mon 20/414:40FLR - LTN
1 stop9h 00mMultiple Airlines
Deal found 30/12£138
Tue 17/210:00LHR - FLR
1 stop5h 20mKLM
Fri 20/206:40FLR - LHR
1 stop5h 05mKLM
Deal found 29/12£188
Thu 26/209:55LCY - FLR
Nonstop2h 05mBritish Airways
Wed 4/315:20FLR - LCY
Nonstop2h 10mBritish Airways
Deal found 31/12£142
Fri 27/218:40LHR - FLR
1 stop22h 25mSWISS
Sun 1/314:50FLR - LHR
1 stop18h 15mSWISS
Deal found 29/12£168
Fri 1/521:45LGW - FLR
1 stop9h 45mVueling
Wed 6/518:05FLR - LGW
1 stop15h 25mVueling
Deal found 29/12£141
Sun 1/306:25STN - FLR
2 stops10h 50mMultiple Airlines
Wed 4/309:50FLR - STN
1 stop11h 40mMultiple Airlines
Deal found 29/12£142
Thu 15/109:15LCY - FLR
1 stop3h 35mSWISS
Sun 18/118:50FLR - LCY
1 stop19h 05mSWISS
Deal found 31/12£170
Mon 9/309:55LCY - FLR
Nonstop2h 05mBritish Airways
Fri 13/315:20FLR - LCY
Nonstop2h 10mBritish Airways
Deal found 29/12£156
Sun 8/217:25LGW - FLR
1 stop14h 50mVueling
Sat 14/212:55FLR - LGW
Nonstop2h 20mVueling
Deal found 30/12£143
Fri 23/121:40LTN - FLR
2 stops12h 20mMultiple Airlines
Sun 25/118:40FLR - LTN
2 stops20h 25mMultiple Airlines
Deal found 30/12£145
Direct flights from London to Siena
Explore direct flight options from London to Siena based on user searches, and compare prices and availability for your desired travel dates. Data last updated 31 December 2025.
Sat 24/119:55LGW - FLR
Nonstop2h 10mVueling
Mon 26/112:55FLR - LGW
Nonstop2h 20mVueling
Deal found 31/12£85
Wed 29/408:30LGW - FLR
Nonstop2h 25mVueling
Fri 15/507:00FLR - LGW
Nonstop2h 25mVueling
Deal found 30/12£87
Wed 28/119:55LGW - FLR
Nonstop2h 10mVueling
Wed 4/218:00FLR - LGW
Nonstop2h 15mVueling
Deal found 29/12£88
Sat 31/119:55LGW - FLR
Nonstop2h 10mVueling
Wed 4/218:00FLR - LGW
Nonstop2h 15mVueling
Deal found 29/12£90
Sat 17/119:55LGW - FLR
Nonstop2h 10mVueling
Sat 24/118:00FLR - LGW
Nonstop2h 15mVueling
Deal found 31/12£90
Thu 29/115:20LGW - FLR
Nonstop2h 10mVueling
Thu 5/213:20FLR - LGW
Nonstop2h 20mVueling
Deal found 29/12£91
Sat 10/119:55LGW - FLR
Nonstop2h 10mMultiple Airlines
Mon 12/107:50FLR - LGW
Nonstop2h 20mMultiple Airlines
Deal found 30/12£92
Wed 28/119:55LGW - FLR
Nonstop2h 10mVueling
Thu 29/113:20FLR - LGW
Nonstop2h 20mVueling
Deal found 31/12£93
Sun 18/120:05LGW - FLR
Nonstop2h 10mVueling
Wed 21/118:00FLR - LGW
Nonstop2h 15mVueling
Deal found 29/12£94
Sun 8/208:30STN - FLR
Nonstop2h 15mBritish Airways
Sat 14/215:15FLR - STN
Nonstop2h 15mBritish Airways
Deal found 30/12£102
Sun 1/308:30STN - FLR
Nonstop2h 15mBritish Airways
Sat 7/315:15FLR - STN
Nonstop2h 15mBritish Airways
Deal found 29/12£124
Sun 1/312:35LCY - FLR
Nonstop2h 10mBritish Airways
Wed 4/315:20FLR - LCY
Nonstop2h 10mBritish Airways
Deal found 29/12£131
Last-minute flights from London to Siena
Discover last-minute flight deals from London to Siena. Data last updated 31 December 2025 and is based on user searches.
Sat 10/119:55LGW - FLR
Nonstop2h 10mMultiple Airlines
Mon 12/107:50FLR - LGW
Nonstop2h 20mMultiple Airlines
Deal found 30/12£92
Sat 10/116:55LGW - FLR
1 stop15h 20mVueling
Mon 12/107:50FLR - LGW
Nonstop2h 20mVueling
Deal found 30/12£95
Sat 10/121:00STN - FLR
1 stop11h 15mMultiple Airlines
Sat 17/107:05FLR - STN
2 stops15h 15mMultiple Airlines
Deal found 30/12£131
Fri 16/111:10LHR - FLR
1 stop4h 20mMultiple Airlines
Mon 19/115:00FLR - LHR
1 stop3h 50mMultiple Airlines
Deal found 30/12£139
Sun 18/120:05LGW - FLR
Nonstop2h 10mVueling
Wed 21/118:00FLR - LGW
Nonstop2h 15mVueling
Deal found 29/12£94
Mon 26/108:25LCY - FLR
1 stop4h 50mITA Airways
Mon 2/215:00FLR - LCY
1 stop26h 10mITA Airways
Deal found 29/12£139
Tue 27/108:30LGW - FLR
1 stop13h 45mVueling
Tue 3/212:55FLR - LGW
Nonstop2h 20mVueling
Deal found 30/12£90
Wed 28/119:55LGW - FLR
Nonstop2h 10mVueling
Wed 4/218:00FLR - LGW
Nonstop2h 15mVueling
Deal found 29/12£88
Wed 28/119:55LGW - FLR
Nonstop2h 10mVueling
Fri 30/112:55FLR - LGW
Nonstop2h 20mVueling
Deal found 29/12£101
Thu 29/115:20LGW - FLR
Nonstop2h 10mVueling
Thu 5/213:20FLR - LGW
Nonstop2h 20mVueling
Deal found 29/12£91
Thu 29/108:25LCY - FLR
1 stop9h 00mITA Airways
Mon 2/215:00FLR - LCY
1 stop26h 10mITA Airways
Deal found 29/12£139
Sat 31/119:55LGW - FLR
Nonstop2h 10mVueling
Wed 4/218:00FLR - LGW
Nonstop2h 15mVueling
Deal found 29/12£90
One-way flights from London to Siena
Search for one-way flight options from London to Siena. Find affordable one-way fares based on user searches. Data last updated 31 December 2025.
Wed 29/408:30LGW - FLR
Nonstop2h 25mVueling
Deal found 29/12£59
Thu 16/405:30LTN - FLR
1 stop15h 00mMultiple Airlines
Deal found 30/12£60
Mon 12/114:55LGW - FLR
Nonstop2h 10mVueling
Deal found 30/12£60
Sat 7/208:30LGW - FLR
1 stop13h 45mVueling
Deal found 29/12£61
Wed 28/107:55LGW - FLR
1 stop14h 20mVueling
Deal found 29/12£62
Tue 24/314:35LGW - FLR
1 stop7h 05mVueling
Deal found 29/12£62
Fri 30/106:00STN - FLR
2 stops15h 30mMultiple Airlines
Deal found 29/12£62
Fri 3/419:55LGW - FLR
Nonstop2h 15mVueling
Deal found 30/12£64
Thu 29/107:00LGW - FLR
1 stop14h 20mVueling
Deal found 30/12£64
Wed 6/512:20LTN - FLR
1 stop8h 00mMultiple Airlines
Deal found 29/12£65
Thu 5/314:55LGW - FLR
1 stop6h 25mVueling
Deal found 28/12£65
Thu 16/410:30LHR - FLR
1 stop27h 15mITA Airways
Deal found 30/12£66
Find flight deals from London to Siena
Keep the following information in mind while searching for London to Siena flight deals. Data was last updated 31 December 2025.
Customise your flight search to find flights from London to Siena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 December 2025.
Use the filters below to find and compare flights from London to Siena that are best for you.
Fly from
London
Fly to
Siena
Route
Depart
Return
Price
LondonFlorence
LGW - FLR
LGWFLR
London Gatwick
Tue 5/5
18:35-08:25
1 stop12h 50m
Florence Peretola
Thu 7/5
14:20-15:50
Nonstop2h 30m
£90
LondonFlorence
LGW - FLR
LGWFLR
London Gatwick
Sat 10/1
19:55-23:05
Nonstop2h 10m
Florence Peretola
Mon 12/1
07:50-09:10
Nonstop2h 20m
£93
LondonFlorence
LGW - FLR
LGWFLR
London Gatwick
Sat 11/4
19:50-23:05
Nonstop2h 15m
Florence Peretola
Mon 13/4
17:45-19:10
Nonstop2h 25m
£97
LondonFlorence
STN - FLR
STNFLR
London Stansted
Sun 8/2
08:30-11:45
Nonstop2h 15m
Florence Peretola
Sat 14/2
15:15-16:30
Nonstop2h 15m
£102
LondonFlorence
LGW - FLR
LGWFLR
London Gatwick
Fri 27/2
19:55-23:05
Nonstop2h 10m
Florence Peretola
Sun 1/3
18:00-19:15
Nonstop2h 15m
£110
LondonFlorence
LGW - FLR
LGWFLR
London Gatwick
Mon 20/4
21:05-08:25
1 stop10h 20m
Florence Peretola
Mon 27/4
06:55-08:20
Nonstop2h 25m
£113
LondonFlorence
STN - FLR
STNFLR
London Stansted
Sun 1/3
08:30-11:45
Nonstop2h 15m
Florence Peretola
Sat 7/3
15:15-16:30
Nonstop2h 15m
£124
LondonFlorence
STN - FLR
STNFLR
London Stansted
Thu 5/2
07:40-16:50
1 stop8h 10m
Florence Peretola
Thu 12/2
14:35-23:35
1 stop10h 00m
£128
LondonFlorence
STN - FLR
STNFLR
London Stansted
Fri 23/1
06:00-22:30
2 stops15h 30m
Florence Peretola
Mon 26/1
10:45-08:15
2 stops22h 30m
£130
LondonFlorence
LGW - FLR
LGWFLR
London Gatwick
Fri 20/3
19:55-23:05
Nonstop2h 10m
Florence Peretola
Mon 23/3
14:45-23:20
1 stop9h 35m
£131
Flights are sorted by cheapest return flights first.
Deals found on 30/12
Showing 1-10 of 60 results
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2
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Best time to book a flight from London to Siena
Have a flexible travel schedule? Discover the best time to fly to Siena from London 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 from London to Siena
How far ahead should I book a flight from London to Siena?
Use this chart to determine the optimal time to book a return flight from London to Siena. Price data was last updated on 26 December 2025.
To ensure you get the cheapest price possible for a flight from London to Siena, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from London to Siena?
Currently, November is the cheapest month in which you can book a flight from London to Siena (average of £15). Flying from London to Siena in August is currently the most expensive (average of £93). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LON to S1N?
Find hourly flight availability from London to Siena. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 December 2025.
It’s optimal to fly from London to Siena in the evening. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the afternoon.
What is the cheapest day to fly from London to Siena?
Use this chart to determine the cheapest time to fly return from London to Siena. Price data was last updated on 27 December 2025.
Travellers seeking maximum savings on their London to Siena flight should consider departing on Friday mornings when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
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 31 December 2025.
Check out reviews from past customers who have flown with Vueling, Ryanair, andeasyJet from London to Siena to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
My tv was not working and I had to switch seats 3 times. Other than that excellent experience.
Related info for your journey
Find useful and relevant information for your journey from London to Siena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from London to Siena?
A quick flight from London to Siena can take about 2h 15m. Vueling provides one of the quickest options available for as low as £102. The distance between London and Siena is about 753 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from London to Siena one-way?
The cheapet airlines for a one-way flight from London to Siena are Vueling (£36), British Airways (£55), and Austrian Airlines (£90).
What are the most popular routes from London to Siena?
The most popular route from London to Siena is London Heathrow - Florence Peretola. You may also consider London Gatwick - Florence Peretola or London City - Florence Peretola.
What are the most reliable airlines from London to Siena?
Consider Japan Airlines (86%), American Airlines (82%) or British Airways (82%) when booking your flight. These represent the most reliable airlines when flying from London to Siena.
What are the cheapest flights from London to Siena?
While on average a flight from London to Siena is generally £142, our data shows the cheapest flight currently is £65. When looking at the most popular route, (London Heathrow - Florence Peretola), you can expect to pay £72 for that flight.
Can I find deals for business class flights from London to Siena?
Yes. Cheapflights offers flight deals from London to Siena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Siena?
Currently, November is the cheapest month in which you can book a flight from London to Siena (average of £15). Flying from London to Siena in August is currently the most expensive (average of £93). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Discover the top 8 airlines that operate flights from London to Siena. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 December 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from London to Siena?
When you search for this flight from London to Siena, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from London to Siena?
Cheapflights simply makes it quick and affordable to book flights from London to Siena by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from London to Siena with no change fees?
Certainly. Search results for flights to Siena from London 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 from London to Siena become cheaper?
Yes, Cheapflights offers price alerts on London to Siena flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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