Athens is served by one of the most competitive international flight markets in Europe — a consequence of the city’s position as both a major tourist destination and a hub for onward travel to the Greek islands. The competition between legacy carriers (Lufthansa, British Airways, Air France), budget airlines (easyJet, Ryanair, Wizz Air), and the national carrier Aegean Airlines creates genuine fare volatility that rewards knowing when and how to book. This guide gives you the complete, honest picture on booking flights to Athens: the best booking windows, the cheapest months to fly, which airlines are actually worth the price difference, how to navigate Athens International Airport on arrival, and the hidden costs that make “cheap” flights sometimes more expensive than they appear. These are the things the flight comparison sites don’t tell you.
Once you land, our Athens airport transport guide covers every option for getting from the airport to the city. For planning your Athens visit: our one day in Athens itinerary and how many days in Athens guide.
When to Book: The Honest Windows
The single most useful fact about booking flights to Athens: the market is highly seasonal and the booking window that produces the best fares varies dramatically by departure month and by departure country.
For peak summer (July-August): Book 4-6 months in advance. The Athens summer flight market is mature and competitive — fares that are reasonable in February become genuinely expensive by May for July-August travel. The sweet spot is January-February for July-August travel. Waiting until April or May for summer flights typically produces fares 40-80% higher than the January equivalent. This is not speculation — it reflects how the market actually operates, and the airlines know it: the highest-search-volume booking period for Greek summer holidays is March-April, which is why fares are already elevated by then.
For shoulder season (May-June, September-October): Book 6-10 weeks in advance. The shoulder season market is less saturated than peak summer, meaning fares are more available closer to travel and the booking advantage of very early purchase is less dramatic. That said, the best fares for May travel typically appear in February-March; for September, book by July.
For winter (November-March): Athens winter flights are genuinely flexible — fares are low, availability is high, and booking 2-4 weeks in advance is entirely adequate for most routes. The exception: Christmas/New Year period, when fares spike to near-summer levels and booking 2-3 months ahead is necessary.
The Tuesday/Wednesday advantage: Not a myth — flights departing on Tuesday and Wednesday are consistently 10-20% cheaper than equivalent Friday and Sunday departures on the Athens market. Athens is a long-weekend destination for much of Europe; weekend departures carry a premium reflecting demand. If your travel dates are flexible, Tuesday or Wednesday departures from most European hubs save real money.
Which Airlines Actually Fly Athens and What They’re Really Like
Aegean Airlines is the Greek national carrier and the highest-quality option on most Athens routes from Europe. Full-service carrier (meals included on longer flights, generous baggage allowance, free seat selection in most fare classes), excellent punctuality record, genuinely good service. Aegean’s fares are often competitive with budget carriers once baggage and seat fees are added — always compare total cost, not headline price.
British Airways / Iberia / Finnair (all oneworld): Full-service carriers on the Athens route, generally reliable. Useful if you have oneworld status or want lounge access. Fares tend to run slightly higher than Aegean or budget carriers on equivalent routes.
Lufthansa / Swiss / Austrian (Lufthansa Group): Full-service, excellent service standards, but Athens connections often route through Frankfurt, Munich, or Zurich adding journey time. Direct Lufthansa Athens flights exist from Frankfurt but connections are more common.
easyJet: Budget carrier with significant Athens capacity from London Gatwick, Amsterdam, Basel, and several other European hubs. Generally reliable on-time performance. The hidden costs: checked baggage (€20-35 per bag each way), seat selection (€7-20), and the specific easyJet experience of a crowded aircraft with no extras. Calculate total cost before comparing to full-service.
Ryanair: Budget carrier operating Athens from a wide range of European airports. Lowest headline fares but highest hidden cost structure: the most restrictive cabin baggage allowance in European aviation (often requiring a cabin bag fee), checked baggage at premium rates, assigned seating, and the specific challenge of Ryanair’s secondary airport usage (check which Athens airport — it’s always ATH, the main airport, not a secondary). Total Ryanair cost can easily exceed Aegean when all fees are included.
Wizz Air: Budapest-based budget carrier with Athens routes from Central and Eastern European hubs. Same fee structure as Ryanair. Competitive on Eastern European routes where Aegean doesn’t compete directly.
The practical comparison: for a London-Athens return with one checked bag and assigned seats, Aegean regularly undercuts easyJet on total cost despite higher headline fares. Always use Google Flights or Skyscanner’s “add bags” function to compare total fares rather than headline prices.
The Cheapest Months to Fly Athens
November through March is consistently the cheapest period — off-season demand, lower airport charges, less competition for seats. January is typically the cheapest single month, with fares from major European hubs often 50-70% below July equivalents. April is transitional — Easter often causes a mid-month spike. May is the first month where summer pricing begins to establish; early May is still reasonable, late May already close to summer rates.
For the specific combination of cheap flights AND excellent Athens weather: late September and October are the optimal window — fares are declining from summer peaks while the weather remains warm (22-28°C), beaches are still swimmable, and the city operates without peak tourist pressure. This is the genuine “best value” month for Athens travel for anyone with date flexibility. Our Athens weather guide covers every month’s specific conditions.
Athens International Airport (ATH): What to Know
Athens Eleftherios Venizelos International Airport (IATA code ATH) is the only commercial airport serving Athens — unlike some European capitals, there is no second airport and no confusing dual-airport situation. The airport is well-organized, signage is good in English, and the processes are standard European. Specific things worth knowing:
Terminal structure: The airport has a single main terminal with the departure areas split between Schengen (for flights within the EU/Schengen zone) and non-Schengen (for flights to non-EU destinations). If you’re flying between two Schengen countries (e.g., UK post-Brexit travelers: no longer Schengen; check your status), be aware that passport control is required even for what feels like a domestic European flight.
Connecting flights through Athens: ATH is an increasingly used connection hub — Aegean connects European arrivals to Greek island domestic flights. Allow at least 90 minutes for connections; 2 hours for international-to-domestic connections involving passport control. The domestic departures area is in the main terminal but requires clearing through separate security if arriving from a non-Schengen flight.
Getting to the city from the airport: Metro Line 3 (Blue Line) runs from the airport to Syntagma in 40 minutes (€10.50 single, or the 5-day travel pass for €8.20 covers it). Suburban railway to Piraeus for ferry connections. Taxi: fixed fare to central Athens zones (approximately €40 fixed rate). Private transfer through Welcome Pickups for a guaranteed door-to-door service with a driver waiting at arrivals — the stress-free option for late arrivals and heavy luggage. Full details: our Athens airport transport guide.
Connectivity on arrival: Set up your Airalo eSIM before your flight departs so it activates automatically on landing — you’ll have data connectivity the moment you clear arrivals, before finding airport Wi-Fi or a Greek SIM card. This is the single most practical pre-trip tech decision for a Greece trip.
Domestic Flights from Athens: The Island Connections
From Athens airport, domestic flights connect to 38 Greek airports — making ATH the hub for both international arrival and onward island travel. The key domestic routes:
Athens-Santorini (JTR): 45 minutes. Multiple daily in summer (Aegean, Olympic Air, Sky Express). Book 3-4 weeks ahead for summer travel — the route fills. This is often the fastest Athens-Santorini option versus 4-6 hours by ferry.
Athens-Mykonos (JMK): 45 minutes. Same operators, same booking advice. The Mykonos ferry (from Piraeus) takes 4-5 hours by fast boat; the flight wins for time if not for cost.
Athens-Heraklion/Crete (HER): 50 minutes. Multiple daily. The ferry to Crete takes 7-9 hours overnight — the flight makes sense for day trips or short stays.
Athens-Rhodes (RHO): 55 minutes. The ferry takes 16-18 hours; domestic flight strongly preferable unless doing the overnight ferry for the experience and accommodation saving.
For island destinations without airports (Hydra, Sifnos, Poros, Mykonos alternatives), the ferry from Piraeus is the only option — book through Ferryscanner. For the metro connection from the airport to Piraeus for same-day ferry connections: our Athens metro guide covers the airport-to-Piraeus route specifically.
The Hidden Costs of Budget Airlines: Full Calculation Guide
The comparison that matters for budget vs full-service on Athens routes, using realistic add-ons:
Example: London to Athens, 1 checked bag (20kg), assigned seat, 1 adult.
Aegean Airlines: Headline fare €85 + 1 checked bag (included in Economy) + seat selection (€8) = €93 total. Or Economy Light (no bag): €65 + bag €30 + seat €8 = €103.
easyJet: Headline fare €55 + checked bag €28 + seat €12 = €95 total.
Ryanair: Headline fare €35 + checked bag €35 + seat €10 + cabin bag (Priority boarding to guarantee overhead space) €10 = €90 total.
The difference is smaller than the headline fares suggest. Add in the specific Aegean advantages (better on-time performance, included meals on longer sectors, better customer service for disruptions) and the calculation tilts further. The lesson: never compare headline fares. Always compare total fares.
Using Google Flights and Skyscanner Effectively for Athens
The flight comparison tools most people use can be used more effectively than most people use them. Specific techniques for finding the best Athens fares:
Google Flights “Price Graph” view: When you search a flexible date range on Google Flights, switch to the Price Graph view which shows fare levels across an entire month. The cheapest days become immediately visible — often Tuesday or Wednesday departures, or the shoulder of a busy weekend. This view is the fastest way to identify the cheapest week within a month for Athens travel.
Google Flights “Explore” feature: If you’re flexible on destination timing, Google Flights Explore shows the cheapest Athens fares from your home airport across the next six months in a calendar view. Useful for finding the genuinely cheapest weeks if your travel dates are truly flexible.
Skyscanner “Whole Month” search: Similar to Google’s price graph — shows all fares for a month in a grid, cheapest days highlighted. Useful for cross-referencing Google Flights results.
Setting fare alerts: Both Google Flights and Skyscanner allow fare alerts on specific routes — you receive an email when the price drops significantly. Useful for routes where you’re not committed to a date but monitoring the market. Athens fares can fluctuate 20-30% within a week as airlines adjust capacity.
Incognito/private browsing: The evidence on whether airlines price-discriminate based on browsing history is disputed, but searching in incognito mode costs nothing and some travelers report seeing lower fares. Worth doing as standard practice.
Direct airline websites after finding the fare: Once you’ve identified the cheapest fare on a comparison site, check the airline’s own website — airlines occasionally have lower prices direct (avoiding booking site commissions) and always have better flight management options (free seat selection, easier rebooking) when purchased directly. Always compare the airline direct price against the comparison site before booking.
Flight + Hotel vs Separate Booking: When Packages Win
For summer peak season (July-August) Athens travel, the flight+hotel package from major UK and European tour operators (TUI, Jet2, Thomas Cook equivalents) sometimes genuinely undercuts separate flight and accommodation booking — particularly for shorter stays (4-7 nights) where the package discount reflects bulk hotel buying power. The trade-off: less flexibility on timing and accommodation choice. For longer stays (10+ days) with specific accommodation preferences, separate booking almost always wins. For a week in a beach hotel south of Athens or on a Saronic island in August, check a package quote against separate booking — you may be surprised. Book independent accommodation through Booking.com with free cancellation as your baseline for comparison.
Frequently Asked Questions
What is the cheapest time to fly to Athens?
November through March, particularly January. Fares are 50-70% below peak summer. Late September and October offer the best combination of reasonable fares and excellent weather.
How far in advance should I book flights to Athens?
For July-August: 4-6 months ahead (book January-February). For May-June and September-October: 6-10 weeks. For November-March: 2-4 weeks is sufficient except Christmas/New Year.
Which airline is best for Athens?
Aegean Airlines for the best overall value when all costs are included and for the best service quality. Budget carriers (easyJet, Ryanair) can be cheaper on headline price but rarely when baggage and seats are added.
How do I get from Athens airport to the city?
Metro Line 3 to Syntagma in 40 minutes (€10.50). Private transfer through Welcome Pickups for guaranteed door-to-door. Taxi with fixed zone rates. Full guide: our Athens airport transport guide.
Related Athens Planning Guides
For airport arrival: Athens airport guide. For getting around once you’re there: Athens metro guide. For what to pack: our Greece travel essentials guide. For the best time to visit: our best time to visit Greece guide.
Ready to Book?
Use Google Flights with the “explore” function to find the cheapest weeks. Always add bags before comparing carriers. Book accommodation through Booking.com with free cancellation immediately after securing your flights. Set up your Airalo eSIM before departure. Arrange airport transfer through Welcome Pickups for a stress-free arrival. For more Athens planning guides, explore athensglance.com.