Posidonia Holidays from £525

Book a Hotel + Flight or Car together to unlock savings

    deals illustration
    Better together
    Save up to £335 when you book a flight and hotel together*
    stays illustration
    Find the right fit
    With over 300,000 hotels worldwide, it's easy to create a perfect package
    luggage illustration
    Rest easy
    Plan, book, and manage your trip all in one place

Your Posidonia Holiday

Spend less time planning and more time having fun adventures with a Posidonia holiday package. The neighbourhood of Delfini, which is great for views and walking, makes a great base for your city escape. If your trip to Posidonia includes a little sightseeing, drop by well-known attractions like Ermoupolis Town Square, Galissas Beach and Kini Beach. Check out Expedia's extensive range of travel options and start planning your ideal holiday to Posidonia now.

The Latest Posidonia Holiday Deals

Price found within the past 48 hours. Click for updated prices.
Hotel Benois

Hotel Benois

4 out of 5
Save 100% on your flight
per person
30 Aug - 5 Sept
found 1 day ago
Return flight included
London (LHR) to Ermoupolis (JSY)
9.6/10 Exceptional! (115 reviews)
This is a lovely hotel with equally lovely staff. It has a variety of charming sitting areas where you can have breakfast, dinner or just sit, drink and relax. Little more than a minute from an outstanding beach with a few other bars, restaurants etc. Not the usual Greek resort but it very quickly grows on you. The hotel restaurant’s menu looks at first glance, nice but not eye- catching. Oh my lord though, don’t judge that book by its cover. I had the greatest moussaka of all time - like no other. I might never order it again because it would never be as good. And the kebabs were pretty otherworldly too. Came away happy and very relaxed. Thank you all.

Reviewed on 28 Jun 2025

Pnoe Villas Syros

Pnoe Villas Syros

3 out of 5
per person
19 Aug - 26 Aug
found 1 day ago
Return flight included
London (LON) to Ermoupolis (JSY)
No reviews
Syrou Melathron

Syrou Melathron

4 out of 5
Save 100% on your flight
per person
16 Aug - 23 Aug
found 1 day ago
Return flight included
London (LON) to Ermoupolis (JSY)
8.8/10 Excellent! (63 reviews)
It was a lovely hotel and the staff were exceptional.

Reviewed on 11 Sep 2024

Dolphin Bay Seaside Resort & Suites

Dolphin Bay Seaside Resort & Suites

4 out of 5
Save 100% on your flight
per person
23 Aug - 30 Aug
found 15 hours ago
Return direct flight included
Birmingham (BHX) to Ermoupolis (JSY)
8.4/10 Very Good! (80 reviews)
Excellent location, pool and slide are a complete hit with the kids. The only slight downside is that the pool bat closes at 6. Not sure if these hours increase for the summer though. Not an issue really as there are a lot of amazing restaurants around town.

Reviewed on 22 Jun 2025

Castro Hotel Syros

Castro Hotel Syros

4 out of 5
Save 100% on your flight
per person
16 Aug - 23 Aug
found 1 day ago
Return flight included
London (LON) to Ermoupolis (JSY)
9.8/10 Exceptional! (33 reviews)
A beautiful hotel with wonderful staff - highly recommended. Love the town of Ermoupoli and Ano Syros.

Reviewed on 16 May 2025

Villa Selena

Villa Selena

5 out of 5
Save 100% on your flight
per person
15 Aug - 22 Aug
found 2 hours ago
Return flight included
London (LON) to Ermoupolis (JSY)
10/10 Exceptional! (4 reviews)
A very unique place. Tastefully designed, super clean room with a great view of the sea. Well situated, great breakfast and friendly, helpful staff. Will go down as one of our favorite stays.

Reviewed on 25 May 2025

Posidonia Beach Holiday

Chill out on the shore and feel the sea breeze whip through your hair during your Posidonia holiday. If it's your first time here, why not pick up some unique seashells as a keepsake of your trip to Posidonia? Set up your base near Finikas Beach, a popular stretch of coast just 1 mile from the city centre. We also have money-saving Posidonia packages closer to Agathopes Beach, another alluring option.

Things You Should Know About Posidonia

Posidonia Essential Information

Language
Greek
Currency
Euros
Local Welcome
Ya su
Local Goodbye
Yiá sou
Closest Airport
Mykonos Island National Airport (JMK)
Max Temp Winter
13ºC
Max Temp Summer
24ºC
Top Sights
Delfini Beach, Kini Beach and Finikas Beach

Our pick of the best Posidonia Hotel Deals

Good Life Greece Eco Villas
Good Life Greece Eco Villas
Poseidonia, Syros, Syros Island
Stay at this beach holiday home in Syros. Enjoy free Wi-Fi, free parking and an on-site winery. Popular attractions Finikas Beach and Agathopes Beach are located ...
"Great place for a relaxing holiday. Beautiful villas transporting you to serene, peaceful village life. Apartment has all the modern facilities so we have the best of both worlds..modern amenities surrounded by village tranquility."

Reviewed on 7 Apr 2023

Good Life Greece Eco Villas
Thor & Freyja's of Poseidonia Syros Holiday House
Thor & Freyja's of Poseidonia Syros Holiday House
Syros, South Aegean
Stay at this holiday home in Syros. Enjoy free parking and a garden. Popular attractions Agathopes Beach and Kómito Beach are located nearby.
Thor & Freyja's of Poseidonia Syros Holiday House
Odera, Tinos, Autograph Collection
Odera, Tinos, Autograph Collection
5 out of 5
Vourni Beach, Tinos, Tinos Island
Stay at this 5-star luxury resort in Tinos. Enjoy free breakfast, free Wi-Fi and free parking. Popular attractions Kionia Beach and Sanctuary of Poseidon are ...
9.4/10 Exceptional! (11 reviews)
"Lovely place,very quiet as well"

Reviewed on 24 Jun 2025

Odera, Tinos, Autograph Collection
See all 638 properties in Posidonia
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

All Inclusive Holidays

All Inclusive Holidays

Beach Holidays

Beach Holidays

Family Friendly Holidays

Family Friendly Holidays

Frequently asked questions

Why should I book my Posidonia holiday with Expedia?
With exceptional-value airfares, car hire and hotel options all in the same place, Expedia makes planning your Posidonia holiday easy. Plus, we can help you bundle your bookings into a package holiday so you can enjoy even more savings. Pick from fantastic stays, add flights and/or a hire car (and maybe even some exciting activities!) and score unbeatable prices. Had a change of plans? Expedia has a flexible cancellation policy for many reservations. To find out more, visit our Customer Service Portal link.
When is the best time of year to holiday in Posidonia?
If you'd like to experience the vibe of Posidonia during the high season, book your adventure for February, June and July. October, November and December are usually the quietest months of the year. With daytime average temperatures of 12ºC, January is the coolest month in Posidonia. The warmest month is August, when you can expect averages of 25ºC throughout the day. Whatever the weather conditions, you'll discover plenty to keep you occupied here.
What is the top hotel for my holiday in Posidonia?
Relax in comfort in Posidonia by choosing Diogenis Hotel as your home base and gateway to exploration.
How do I get a cheap holiday to Posidonia?
If you love getting an amazing deal, bundle your bookings into a Posidonia holiday. Whether you're searching for hotels, flights, tours or hire cars, you can book everything in one place. You'll have loads of choice at your fingertips too. Expedia has over 400 air carriers and 321,000 properties all over the world to pick from. Fly with who you prefer, book a room where you like and save precious pounds --- now that's the perfect holiday! Learn more about how you can save money on your holiday when you bundle your flight and hotel bookings with Expedia.
What should I do on my Posidonia holiday?
There's an almost endless list of things to see and do while having a holiday in Posidonia. Ermoupolis Town Square, Geniko Nosokomio Sirou Vardakio kai Proio, Agathopes Beach and Delfini Beach are a few of this city's leading attractions.
Do I need a visa for my Posidonia holiday?
Visa requirements for Posidonia vary depending on your nationality and purpose of your visit. Make sure you check official government websites to determine if you need a visa for your trip. They'll give you the most up-to-date information, including details about application procedures or supporting documentation you may need. Research your visa requirements well in advance to ensure a hassle-free travel experience. Finally, make sure your passport is valid for a further six months from your planned return date.
What should I wear on my Posidonia holiday?
Although everyone's style varies, it can be helpful to have some guidelines for what type of clothes to wear on your holiday in Posidonia. We recommend looking up style blogs before leaving for inspiration on local fashion trends.
What does an Expedia Posidonia holiday include?
It's up to you! Simply select from a variety of Posidonia bundles, such as a hotel, hire car and flight. You can also book a hotel with a flight, or a car hire and a flight. Once you've made your booking, add on the fun stuff like experiences and activities. Whatever your Posidonia getaway looks like, get set to save! Villas and private holiday homes are a few sought-after property types in Posidonia. No matter your holiday style or group size, you can count on Expedia for the flexibility and freedom to customise your escape.
Does Expedia offer Book Now, Pay Later Posidonia holidays?
Expedia has teamed up with online lender Klarna to make your next trip a little easier on the wallet. Paying by instalment means you can spread the costs of your next big adventure, leaving you with more cash to play with while you're travelling. Klarna has several payment plans to pick from, so you're sure to find something that fits into your budget. Browse these flexible payment options:

  • Pay monthly holidays: Realise your holiday dreams sooner with Klarna's easy payment plans. If paying over multiple transactions works for you, pick this option at checkout.
  • No-deposit holidays: Pressing the "book now" button is much easier with this payment option. With no upfront fee for your getaway, you can Book Now, Pay Later and start working on your travel plans.

Can I choose my airline with a Posidonia Expedia holiday?
Yes --- and it's simple too. Expedia has access to more than 400 partner airlines worldwide. Our packages give you the freedom to pick from available flight, hotel or activity options that fit your needs.

* Savings based on package bookings compared to the price of the same components booked separately. Savings not available on all packages. Flight-inclusive packages are ATOL protected.