Route guide

Kolkata to Siem Reap (CCU-SAI): Nonstop Upgrade & Award Space

IndiGo flies nonstop from Kolkata (CCU) to Siem Reap (SAI) just three times a week. With so few departures, each one carries the only premium seats on the route that day. 2LNR tracks confirmed upgrade and award space on all of them, so a rare opening doesn't slip past you.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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3
Nonstop flights a week
1,217 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every CCU to SAI departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Kolkata to Siem Reap to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each CCU to SAI departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See CCU to SAI on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Kolkata to Siem Reap nonstop

Carriers operating CCU to SAI nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • IndiGo
See CCU to SAI on the interactive map →

Frequently asked questions about CCU to SAI

How far is Siem Reap from Kolkata?
CCU to SAI covers about 1,217 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from CCU to SAI?
IndiGo is currently the only airline flying CCU to SAI nonstop. 2LNR tracks confirmed upgrade and award space on every IndiGo departure.
How often does CCU to SAI operate?
The nonstop currently runs three times a week, on IndiGo. Thin schedules like this change by season, and an alert will catch anything added.
How do I check upgrade or award availability on CCU to SAI?
Open the CCU to SAI calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Kolkata to Siem Reap route, and 2LNR will notify you when space opens. It's free to start.

Never miss CCU to SAI upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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