Compare: Athens→Rome (1,051 km) vs Athens→Istanbul (562 km). Athens → Istanbul wins by 489 km (47%). Side-by-side with flight & drive times.
By SnapDistance Team · Updated April 21, 2026
1,051 km
653 miles · Flight: ~1h 49min · Drive: ~17h 5min
562 km
349 miles · Flight: ~1h 12min · Drive: ~9h 8min
✓ Shorter route
Difference: 489 km (47%) · Flight time difference: ~37 min
Verdict
Athens → Istanbul is the smarter pick if travel time and emissions matter most: it is 489 km (47%) shorter, saves about 37 min of flight time, and cuts roughly 125 kg of CO₂ per passenger. Choose Athens → Rome only if the destination itself is the reason for the trip.
Athens → Istanbul is the shorter route at 562 km, which is 489 km (47%) shorter than Athens → Rome. You would save approximately 37 min in flight time by choosing the shorter route.
| Metric | Athens → Rome | Athens → Istanbul |
|---|---|---|
| Distance (km) | 1,051 | 562 |
| Distance (miles) | 653 | 349 |
| Flight time | ~1h 49min | ~1h 12min |
| Driving time | ~17h 5min | ~9h 8min |
| Road distance (est.) | ~1,366 km | ~731 km |
| Drivable? | Yes | Yes |
| Cross-continental | No | No |
| Initial bearing | 298° (WNW) | 52° (NE) |
| Time-zone shift | -1h | None |
| CO₂ – flight (per pax) | ~268 kg | ~143 kg |
| CO₂ – driving (per car) | ~234 kg | ~125 kg |
| Fuel cost (est.) | ~$137 USD | ~$73 USD |
Flying from Athens to Rome produces roughly 268 kg of CO₂ per passenger, based on the ICAO/EEA short-haul emission factor of ~0.255 kg per passenger-km. The Athens → Istanbul flight emits about 143 kg. Choosing the shorter route saves approximately 125 kg of CO₂ per traveler — equivalent to 6 typical tree-years of carbon sequestration. For comparison, driving emits roughly 234 kg and 125 kg per car respectively — meaningful only when the car carries multiple passengers.
The Athens to Rome route covers 1,051 km (653 miles), staying within Europe. Athens (population: 664,046) is located in Attica, Greece, while Rome (population: 2,873,000) is in Lazio, Italy.
The Athens to Istanbul route covers 562 km (349 miles), remaining within Europe. Athens (population: 664,046) is in Attica, Greece, and Istanbul (population: 15,462,452) is in Marmara, Turkey.
Flying from Athens to Rome takes approximately 1h 49min, while Athens to Istanbul takes 1h 12min. If driving is an option, expect roughly 17h 5min for the first route and 9h 8min for the second.
Since both routes depart from Athens, this comparison is especially useful for travelers deciding between Rome and Istanbul as a destination.
The 489 km difference between these routes is substantial and will significantly impact travel time and cost.
Both routes are drivable, with road distances of approximately 1,366 km and 731 km respectively. For road trips, the shorter route saves roughly 635 km of driving.
Rome (Italy) has a population of 2,873,000 and is located in the Lazio region of Europe. It's a significant city with good transport links and cultural offerings.
Istanbul (Turkey) has a population of 15,462,452 and is situated in Marmara, Europe. This major global city has multiple airports and world-class infrastructure.
Choose this route if your priority is reaching Rome (Italy) — a city of 2,873,000 in the Lazio region of Europe. Despite being the longer of the two at 1,051 km, it makes sense when Rome itself is the destination, the schedule fits better, or ticket prices are noticeably lower. Driving is realistic at this distance, with an estimated 1,366 km of road and a fuel cost band around $137 USD. The initial bearing is 298° (WNW), so a great-circle flight leaves Athens heading roughly WNW.
This route is the right call if you are heading to Istanbul (Turkey) — a city of 15,462,452 in the Marmara region of Europe. It is also the shorter of the two at 562 km, saving about 37 min of flying and around 125 kg of CO₂ per passenger. Driving is feasible — expect roughly 731 km of road and a fuel cost in the $73 USD range. Departing Athens, the great-circle bearing toward Istanbul is 52° (NE).
Athens (37.98°, 23.73°) and Rome (41.90°, 12.50°) sit with a time-zone shift of -1 hour. Athens (37.98°, 23.73°) and Istanbul (41.01°, 28.98°) share an approximate time zone. Both routes have manageable time-zone shifts, so jet lag should not be a major factor.
Istanbul is closer at 562 km, which is 489 km (47%) shorter.
1,051 km (653 miles). Flight: ~1h 49min.
562 km (349 miles). Flight: ~1h 12min.
Flying to Istanbul is faster at ~1h 12min, saving about 37 min compared to Rome.
All distances on SnapDistance are calculated using the Haversine formula, which determines the great-circle distance between two points on Earth's surface. This gives the shortest possible distance over the globe, which is the measurement used for aviation and navigation. Actual travel distances by road or rail are typically 20-40% longer due to terrain, borders, and infrastructure routing. Flight times assume 800 km/h cruising speed with 30 minutes for takeoff and landing. Driving estimates use 80 km/h average speed with a 30% road distance factor.
📍 Data: Coordinates from OpenStreetMap contributors. Distances calculated using the Haversine formula. Travel times are estimates only. Last verified: April 21, 2026.