Bangkok to Colombo (BKK-CMB): nonstop flights and who flies them

SriLankan Airlines and Thai Airways International fly nonstop between Bangkok (BKK) and Colombo (CMB), roughly 21 times a week. The timetable below shows the nonstop scheduled at 3h 20m to 3h 45m for the 1,486 miles.

Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated October 23, 2026.

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Flights a week, 4-week average

3h 20m to 3h 45m

Scheduled flight time

1,486 mi

Nonstop distance

Free

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Bangkok to Colombo flight schedule

Scheduled nonstop departures for BKK to CMB starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Bangkok (BKK) to Colombo (CMB)
Date	Flight	Airline	Departs BKK	Arrives CMB	Duration	Aircraft
Thu, Oct 22	UL 403	SriLankan Airlines	07:45	09:35	3h 20m	Airbus A320
Thu, Oct 22	UL 405	SriLankan Airlines	13:55	15:45	3h 20m	Airbus A321
Thu, Oct 22	TG 307	Thai Airways International	21:40	23:55	3h 45m	Airbus A320
Fri, Oct 23	UL 403	SriLankan Airlines	07:45	09:35	3h 20m	Airbus A320
Fri, Oct 23	UL 405	SriLankan Airlines	13:55	15:45	3h 20m	Airbus A321
Fri, Oct 23	TG 307	Thai Airways International	21:40	23:55	3h 45m	Airbus A320
Sat, Oct 24	UL 403	SriLankan Airlines	07:45	09:35	3h 20m	Airbus A320
Sat, Oct 24	UL 405	SriLankan Airlines	13:55	15:45	3h 20m	Airbus A321
Sat, Oct 24	TG 307	Thai Airways International	21:40	23:55	3h 45m	Airbus A320
Sun, Oct 25	UL 403	SriLankan Airlines	08:10	10:10	3h 30m	Airbus A320
Sun, Oct 25	UL 405	SriLankan Airlines	13:55	15:55	3h 30m	Airbus A321
Sun, Oct 25	TG 307	Thai Airways International	21:40	23:55	3h 45m	Airbus A320
Mon, Oct 26	UL 403	SriLankan Airlines	08:10	10:10	3h 30m	Airbus A320
Mon, Oct 26	UL 405	SriLankan Airlines	13:55	15:55	3h 30m	Airbus A321
Mon, Oct 26	TG 307	Thai Airways International	21:40	23:55	3h 45m	Airbus A320
Tue, Oct 27	UL 403	SriLankan Airlines	08:10	10:10	3h 30m	Airbus A320
Tue, Oct 27	UL 405	SriLankan Airlines	13:55	15:55	3h 30m	Airbus A320
Tue, Oct 27	TG 307	Thai Airways International	21:40	23:55	3h 45m	Airbus A320
Wed, Oct 28	UL 403	SriLankan Airlines	08:10	10:10	3h 30m	Airbus A320
Wed, Oct 28	UL 405	SriLankan Airlines	15:20	17:20	3h 30m	Airbus A321
Wed, Oct 28	TG 307	Thai Airways International	21:40	23:55	3h 45m	Airbus A320

Showing all 21 scheduled BKK to CMB departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

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Aircraft on the Bangkok to Colombo nonstop

In the schedule table on this page, SriLankan Airlines flies the Airbus A320 and the Airbus A321, and Thai Airways International flies the Airbus A320. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

The full BKK to CMB nonstop schedule

This page carries the full BKK to CMB nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See the schedule

Who operates each BKK to CMB nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

See BKK to CMB on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Bangkok to Colombo nonstop

Carriers operating BKK to CMB nonstop in the current schedule.

See BKK to CMB on the interactive map →

Frequently asked questions about BKK to CMB

How long is the flight from Bangkok (BKK) to Colombo (CMB)?

Scheduled flight times from Bangkok (BKK) to Colombo (CMB) run from 3h 20m to 3h 45m across the departures in the schedule table on this page. The nonstop covers about 1,486 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from BKK to CMB?

SriLankan Airlines and Thai Airways International fly BKK to CMB nonstop. 2LNR doesn't show award or upgrade space for any of them on BKK to CMB, so this page carries the schedule rather than a space claim.

How many flights a week are there from BKK to CMB?

About 21 nonstop flights a week run between Bangkok (BKK) and Colombo (CMB) in the current schedule, operated by SriLankan Airlines and Thai Airways International. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from BKK to CMB depart?

Scheduled BKK to CMB nonstops in the next 7 days with service leave between 07:45 and 21:40, local time at Bangkok. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate BKK to CMB nonstop?

In the schedule table on this page, BKK to CMB nonstops fly as UL 403 and UL 405 on SriLankan Airlines, and TG 307 on Thai Airways International. The table lists each departure by date with its times and aircraft.

Does 2LNR show upgrade or award space on BKK to CMB?

Not on this route: 2LNR doesn't show award or upgrade space for any airline flying BKK to CMB. The page carries the full BKK to CMB nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full BKK to CMB nonstop schedule

Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro.

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