Route guide

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

IndiGo flies nonstop from Siem Reap (SAI) to Kolkata (CCU) 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 SAI to CCU 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 Siem Reap to Kolkata 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 SAI to CCU 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 SAI to CCU on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Siem Reap to Kolkata nonstop

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

  • IndiGo
See SAI to CCU on the interactive map →

Frequently asked questions about SAI to CCU

How far is Kolkata from Siem Reap?
SAI to CCU 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 SAI to CCU?
IndiGo is currently the only airline flying SAI to CCU nonstop. 2LNR tracks confirmed upgrade and award space on every IndiGo departure.
How often does SAI to CCU 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 SAI to CCU?
Open the SAI to CCU calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Siem Reap to Kolkata route, and 2LNR will notify you when space opens. It's free to start.

Never miss SAI to CCU upgrade or award space

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

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