London to Athensflight delays & reliability
Every LHR → ATH flight, ranked from real departure telemetry: 62 operations across 10 scheduled flights and 2 airlines. Updated August 15, 2026.
- ON-TIME
- 11%
- MEDIAN DELAY
- 32 min
- CANCELLED
- 3 of 62
- DISTANCE
- 2,426 km
- IF DISRUPTED
- €400 / pax
THE READ
Aegean at 19:00 (A3605) has run the cleanest recently — median 15 min departure delay across 6 operations. Avoid BA632 at 14:00 if timing matters — it's been running 78 min behind. Note: BA626 cancelled 1 of its last 7.
Every LHR → ATH flight, ranked
By median departure delay over each flight's recent operations. Green is bookable; red needs a story.
| # | FLIGHT | DEPARTS | MEDIAN DELAY | ON-TIME | 30+ MIN LATE | CANCELLED |
|---|---|---|---|---|---|---|
| 1 | Aegean A3605BEST BET | 19:00 | 15 min | 50% | 17% | 0 |
| 2 | British BA626 | 06:40 | 20 min | 17% | 33% | 1 |
| 3 | British BA630 | 10:35 | 24 min | 0% | 33% | 1 |
| 4 | Aegean A3609 | 22:15 | 24 min | 29% | 0% | 0 |
| 5 | Aegean A3603 | 16:35 | 26 min | 0% | 29% | 0 |
| 6 | British BA634 | 09:00 | 27 min | 0% | 33% | 0 |
| 7 | Aegean A3601 | 12:15 | 28 min | 0% | 29% | 0 |
| 8 | British BA628 | 08:35 | 35 min | 0% | 50% | 1 |
| 9 | British BA638 | 20:30 | 38 min | 14% | 57% | 0 |
| 10 | British BA632AVOID IF TIMING MATTERS | 14:00 | 78 min | 0% | 100% | 0 |
Sample: each flight's last 7 scheduled days (62 operations total). Recent form, not a lifetime average.
The route's last 7 days
Average departure delay across all LHR → ATH flights, by day.
1✕
1✕
1✕
Airline vs airline on this route
AegeanLEADS
24 min median
4 flights · 27 operations · 19% on-time
British
39 min median
6 flights · 35 operations · 6% on-time · 3 cancelled
Best time of day to fly it
Delays cascade through each aircraft's day — morning departures have been this route's safest window (5% on-time). For a client with a connection, book early.
Whose fault are the delays — airline or weather?
Every one of the window's 63 operations flew in clear conditions at LHR — and the route still averaged 33 minutes of departure delay. That matters legally: clear-day delays are the airline's responsibility, with no "extraordinary circumstances" defence — exactly the delays where EC261/UK261 compensation (€400 / £350 per passenger on this route) applies.
When LHR → ATH goes wrong, your client is owed money
EC261 (EU RULES)
€400
per passenger · route 1,500–3,500 km
UK261 (UK RULES)
£350
per passenger · same booking, per person
A FAMILY OF FOUR
4×
compensation is per passenger, not per booking
Qualifying events: arrival delays of 3+ hours, cancellations without proper notice, and denied boarding — when the cause is within the airline's control. Claims reach back years (up to six in England & Wales). Most go unclaimed because nobody is watching. MyAirAdvocate watches every booking a travel agent forwards and prepares the claim automatically — evidence included.
THIS PAGE IS A SNAPSHOT — ROUTE IQ IS LIVE
Inside the portal, agents run this analysis on any route, on demand — with each flight's day-by-day pattern, per-day weather attribution, and every airline's turnaround discipline at LHR (tight turnarounds are how one late arrival cascades all day).
Agents ask
Which London to Athens flight is the most reliable right now?
Aegean A3605 (the 19:00 departure) has run the cleanest — median 15 minutes of departure delay and 50% on-time across its last 6 operations, with no cancellations.
Which flight from LHR to ATH is delayed most often?
British BA632 (14:00) has been the route's weakest recent performer, running a median 78 minutes behind schedule.
What is the best time of day to fly London to Athens?
Morning departures have performed best recently — a median 26 minutes of delay and 5% on-time across 21 operations. Delays compound through the day as late aircraft cascade, so earlier is usually safer for connections.
How much compensation for a delayed or cancelled LHR–ATH flight?
The LHR–ATH corridor is about 2,426 km (1,500–3,500 km), so qualifying disruptions pay €400 per passenger under EC261 or £350 under UK261 — per passenger, so a family of four is owed four times that. Delays must reach 3+ hours at arrival; cancellations and denied boarding have their own rules; airline-controlled causes only.
Who is more reliable on this route: Aegean or British?
On recent form, Aegean leads: median 24 min delay and 19% on-time across 27 operations, vs British at median 39 min and 6% on-time.
Can my client claim for a past LHR–ATH disruption?
Often yes — limitation periods reach back years (up to six in England & Wales, five in France, three in Germany). If a client's LHR–ATH flight was delayed 3+ hours or cancelled in recent years, the claim may still be live. MyAirAdvocate checks past bookings automatically when agents forward old confirmations.
Methodology: grades weigh on-time percentage (55%) and median departure delay (45%) across all tracked flights, ops-weighted; cancellations are heavily penalized. Source: departure-board telemetry — the same evidence MyAirAdvocate cites in EC261/UK261 claim letters. Short windows are honest but noisy; grades update as new operations land.