SriLankan Airlines

ALK402 / UL402

ICAO: ALK402 IATA: UL402

Click here to see all flights

Flight schedule

Select flight date

Departure

Arrive

Aircraft

Effective

Avalibility

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320

Begins

Now

Valid to

2026-07-21

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Wednesdays and Thursdays

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320 (sharklets)

Begins

Now

Valid to

2026-07-23

sun

mon

tue

wed

thu

fri

sat

Wednesdays and Thursdays

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Movie, Audio programming, Duty free sales

Seats

150

Business

Economy

138

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320

Begins

2026-07-24

Valid to

2026-08-01

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Thursdays

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320 (sharklets)

Begins

2026-07-30

Valid to

2026-08-06

sun

mon

tue

wed

thu

fri

sat

Every Thursday

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Movie, Audio programming, Duty free sales

Seats

150

Business

Economy

138

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320

Begins

2026-08-02

Valid to

2026-08-11

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Thursdays

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320 (sharklets)

Begins

2026-08-12

Valid to

2026-08-13

sun

mon

tue

wed

thu

fri

sat

Wednesdays and Thursdays

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Movie, Audio programming, Duty free sales

Seats

150

Business

Economy

138

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320

Begins

2026-08-14

Valid to

2026-08-19

sun

mon

tue

wed

thu

fri

sat

Every Tuesday, Wednesday, Friday and Sunday

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320

Begins

2026-08-15

Valid to

2026-08-24

sun

mon

tue

wed

thu

fri

sat

Every Monday, Friday and Saturday

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320 (sharklets)

Begins

2026-08-20

Valid to

2026-10-22

sun

mon

tue

wed

thu

fri

sat

Every Thursday

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Movie, Audio programming, Duty free sales

Seats

150

Business

Economy

138

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320

Begins

2026-08-23

Valid to

2026-08-31

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Thursdays

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320

Begins

2026-09-01

Valid to

2026-09-07

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Thursdays and Fridays

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320

Begins

2026-09-04

Valid to

2026-09-11

sun

mon

tue

wed

thu

fri

sat

Tuesdays and Fridays

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320

Begins

2026-09-09

Valid to

2026-09-16

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Thursdays and Fridays

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320

Begins

2026-09-18

Valid to

2026-10-24

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Thursdays

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

AY 6646 /JL 5705 /QF 4198 /HM 6222 /8M 5402

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:15

Colombo (CMB)

06:20

Bangkok (BKK)

Airbus A320

Begins

2026-10-25

Valid to

2027-03-27

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Mondays and Thursdays

SriLankan Airlines

ALK402

Duration

3h 35m

Distance

1494 mi, 2404 km

Coreshare

JL 5705 /QF 4253 /AY 6646

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:15

Colombo (CMB)

06:20

Bangkok (BKK)

Airbus A320 (sharklets)

Begins

2026-10-26

Valid to

2027-03-25

sun

mon

tue

wed

thu

fri

sat

Mondays and Thursdays

SriLankan Airlines

ALK402

Duration

3h 35m

Distance

1494 mi, 2404 km

Coreshare

JL 5705 /QF 4253 /AY 6646

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Movie, Audio programming, Duty free sales

Seats

150

Business

Economy

138

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320

Begins

2027-03-28

Valid to

2027-07-13

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Thursdays

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

QF 4253 /AY 6646

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Audio programming, Duty free sales

Seats

143

Business

Economy

129

01:05

Colombo (CMB)

06:15

Bangkok (BKK)

Airbus A320 (sharklets)

Begins

2027-04-01

Valid to

2027-07-13

sun

mon

tue

wed

thu

fri

sat

Every Thursday

SriLankan Airlines

ALK402

Duration

3h 40m

Distance

1494 mi, 2404 km

Coreshare

QF 4253 /AY 6646

Same day flight

Yes

Terminal

Meals

Hot meal

Onboard services

Movie, Audio programming, Duty free sales

Seats

150

Business

Economy

138

Loading flight status...

General route info

Frequency:

Daily

Sun Mon Tue Wed Thu Fri Sat

Direct distance

1487 miles, 2392 km

Actual distance

1494 miles, 2404 km

0.47%

Flight time

3h 40m

Flights / Week

14 flights

Seats / Week

143 seats/flight

2002 seats/week

Upcoming scheduled flights in the coming 30 days

Date

Time

From

To

Aircraft

Status
Date:

Time:

From:

To:

Aircraft:

Status:

18 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

19 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

20 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

21 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

22 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320 (sharklets)

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

23 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320 (sharklets)

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

24 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

25 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

26 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

27 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

28 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

29 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

30 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320 (sharklets)

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

31 Jul 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

01 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

02 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

03 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

04 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

05 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

06 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320 (sharklets)

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

07 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

08 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

09 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

10 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

11 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

12 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320 (sharklets)

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

13 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320 (sharklets)

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

14 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

15 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

16 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402
Date:

Time:

From:

To:

Aircraft:

Status:

17 Aug 2026

01:05

Colombo(CMB)

Bangkok(BKK)

Airbus A320

UL402

ALK402 information

An international route departing from Colombo (CMB), Sri Lanka and arriving at Bangkok (BKK), Thailand.

The timezone of the departure airport is UTC +5.5, and the timezone of the arrival airport is UTC +7.

The current time at the point of departure is 12:09am, and 1:39am at the point of arrival. There is a 1.5 hour time difference between the airports.

The flight distance is 1494 miles, or 2404 km.

For direct flights, the flight time is about 3:40.

Flights

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Departure

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Round trip

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Destination

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Depart Date

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Check Out

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Return Date

Travelers

Guests

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Adults

Children

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Cabin class

Economy

Premium Economy

Business

First Class

Rooms

{{ rooms }} RoomRooms

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Pick Up Time

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Other flights between Colombo and Bangkok with SriLankan Airlines

07:35

UL 404

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SriLankan Airlines

ALK402 / UL402

Flight schedule

General route info

Frequency:

Direct distance

Actual distance

Flight time

Flights / Week

Seats / Week

Upcoming scheduled flights in the coming 30 days

ALK402 information

Colombo (CMB) Flight Deals

Colombo Hotel Deals

Colombo (CMB) Rental Cars

Colombo (CMB) Parking

Other flights between Colombo and Bangkok with SriLankan Airlines

Popular Airports

Popular Airlines

SriLankan Airlines

ALK402 / UL402

Flight schedule

General route info

Frequency:

Direct distance

Actual distance

Flight time

Flights / Week

Seats / Week

Upcoming scheduled flights in the coming 30 days

ALK402 information

Colombo (CMB) Flight Deals

Colombo Hotel Deals

Colombo (CMB) Rental Cars

Colombo (CMB) Parking

Select Destination Airport

Select Departure Airport

Other flights between Colombo and Bangkok with SriLankan Airlines

Colombo (CMB) Flight Deals

Colombo Hotel Deals

Colombo (CMB) Rental Cars

Colombo (CMB) Parking

Select Destination Airport

Select Departure Airport