Route guide

Colombo to Cascade (CMB-SEZ): Nonstop Upgrade & Award Space

Air Seychelles and X1 fly the CMB to SEZ nonstop about 4 times a week. That's enough service to give you a real choice of departures, though premium seats don't sit unclaimed for long. 2LNR watches every CMB to SEZ departure for confirmed upgrade and award space and can alert you when a date you're tracking opens up.

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

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4
Nonstop flights a week
1,869 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every CMB to SEZ 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 Colombo to Cascade 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 CMB to SEZ 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 CMB to SEZ on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Colombo to Cascade nonstop

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

  • Air Seychelles
  • X1
See CMB to SEZ on the interactive map →

Frequently asked questions about CMB to SEZ

How far is Cascade from Colombo?
CMB to SEZ covers about 1,869 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from CMB to SEZ?
Air Seychelles and X1 fly the route nonstop. 2LNR tracks confirmed upgrade and award space on both of them.
How many flights a week are there from CMB to SEZ?
About 4 nonstop flights a week run between Colombo and Cascade in the current schedule, operated by Air Seychelles and X1. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on CMB to SEZ?
Open the CMB to SEZ calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Colombo to Cascade route, and 2LNR will notify you when space opens. It's free to start.

Never miss CMB to SEZ upgrade or award space

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

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