Altenrhein to Kathmandu flight path: ACH to KTM

Sit on the left side of the plane

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Flight time10h 00m
Distance4,194
Heading080° → 131°
Best side
LeftMostly left

While takeoff offers Alpine scenery, the landing approach into Kathmandu provides the more dramatic and memorable views—the sudden emergence of the Himalayan range from the southern approach is spectacular. Left-side seats capture this signature moment.

Flown ACH to KTM? Did we get it right?

Flight Path

Flight path overview

Altenrhein to Kathmandu is 4,194 miles (6,749 km), a flight of about 10 hours.

The flight path crosses the Balkans (Serbian and Bulgarian highlands), the Black Sea coast, Turkey (Anatolian Plateau and Taurus Mountains), the Levant region, and then over Iran and Afghanistan's Hindu Kush range before descending into the Kathmandu Valley. The most visually striking midpoint feature is the Hindu Kush and Pamir ranges as you approach Nepal from the northwest, visible roughly 2-3 hours before landing.

Great circle distance and headings ›

Phase by phase

Takeoff from ACH

RIGHT

Right-side seats capture the Alps during climb-out heading southeast. The Appenzell Alps and St. Gallen region unfold below, with the Rhine Valley visible to the left as you gain altitude.

Appenzell AlpsRhine ValleyLake Constance to the northSt. Gallen city
ACH St Gallen AltenrheinAltenrhein, Switzerland
Aerial window seat view during landing at Kathmandu (left side) — Himalayan range (including Langtang Himal and Gaurishankar peaks), Mahabharat Range, Kathmandu Valley, Bagmati River

Landing at KTM

LEFT

Left-side seats offer the best views during descent into Kathmandu. You'll see the Himalayan range emerge dramatically as you approach from the south, with the Kathmandu Valley visible ahead and the Mahabharat Range in the foreground.

Himalayan rangeMahabharat RangeKathmandu ValleyBagmati River
KTM Tribhuvan InternationalHub for Nepal Airlines, Buddha Air, Yeti Airlines

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About This Route

Which side of the plane should I sit on flying from St Gallen Altenrhein (ACH) to Tribhuvan International (KTM)?

Sit on the Left side of the plane for the best views on flights from Altenrhein to Kathmandu. While takeoff offers Alpine scenery, the landing approach into Kathmandu provides the more dramatic and memorable views—the sudden emergence of the Himalayan range from the southern approach is spectacular. Left-side seats capture this signature moment.

What can I see during takeoff from St Gallen Altenrhein in Altenrhein?

During takeoff from St Gallen Altenrhein (ACH), sit on the Right side for the best views. Right-side seats capture the Alps during climb-out heading southeast. The Appenzell Alps and St. Gallen region unfold below, with the Rhine Valley visible to the left as you gain altitude. Notable sights include: Appenzell Alps, Rhine Valley, Lake Constance (Bodensee) to the north, St. Gallen city.

What can I see when landing at Tribhuvan International in Kathmandu?

When landing at Tribhuvan International (KTM), sit on the Left side for the best views. Left-side seats offer the best views during descent into Kathmandu. You'll see the Himalayan range emerge dramatically as you approach from the south, with the Kathmandu Valley visible ahead and the Mahabharat Range in the foreground. Notable sights include: Himalayan range (including Langtang Himal and Gaurishankar peaks), Mahabharat Range, Kathmandu Valley, Bagmati River.

How long is the flight from Altenrhein to Kathmandu?

The flight from St Gallen Altenrhein (ACH) to Tribhuvan International (KTM) takes about 10 hours. The shortest flight path between them is 4,194 miles (6,749 km); winds and air traffic control usually add a few percent.

What does the Altenrhein to Kathmandu flight path pass over?

The flight path crosses the Balkans (Serbian and Bulgarian highlands), the Black Sea coast, Turkey (Anatolian Plateau and Taurus Mountains), the Levant region, and then over Iran and Afghanistan's Hindu Kush range before descending into the Kathmandu Valley. The most visually striking midpoint feature is the Hindu Kush and Pamir ranges as you approach Nepal from the northwest, visible roughly 2-3 hours before landing.