How long is the flight from ICN to VTE?

About 4 h 35 min gate to gate, estimated from the distance. Real times depend on winds and the routing.

Which airlines fly nonstop between ICN and VTE?

Jeju Air, Lao Airlines, Trinity Airways, Air Busan flew the route in Jan 2026 – Jun 2026, with 28 flights a week in both directions together.

How much EU261 compensation is a delay on ICN–VTE worth?

Neither EU261 nor UK261 applies: the route neither starts nor ends in the EU, EEA, Switzerland or the UK.

How much CO2 does a flight from ICN to VTE emit?

About 400 kg CO2e per economy passenger one way, including the extra warming effect of flying high (236 kg without it), using the UK government's 2026 conversion factors.

AirportMiles

Seoul (ICN) – Vientiane (VTE)

Flights on Google Skyscanner

Distance, flight time and the airlines that fly it, from open data.

Distance: 3,177 km; 1,974 mi · 1,715 nm
Flight time: 4 h 35 min; Estimate from distance
Time difference: 2 h
CO2 per passenger: 400 kg; One way, economy, incl. RF (236 kg CO2 only)
Passengers, 6 months: 103,313; Jan 2026 – Jun 2026
Flights / week: 28; Both directions, average
Seats filled: —
Airlines nonstop: 4; 7C, QV, TW

Traffic: Incheon International Airport Corporation (Korea), scheduled passenger flights, Jan 2026 – Jun 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources

Shortest path over the earth's surface (great circle). Real flights bend around weather, winds and airspace.

The way there

Heading from ICN: 234°
Heading from VTE: 42°
Halfway point: 28.25, 113.42
Great-circle km: 3,179 km (sphere, for EU261)
Clocks: Vientiane is 2 h behind Seoul

The estimate for a route without real times is 4 h 35 min; how it is worked out is on Sources.

Passengers per month, both directions (Jan 2026 – Jun 2026)Busiest: January 2026: 31,725 passengers

Show as a table

Month	Passengers
Jan 2026	31,725
Feb 2026	23,569
Mar 2026	23,163
Apr 2026	13,432
May 2026	5,569
Jun 2026	5,855

Flights per month, both directions (Jan 2026 – Jun 2026)Busiest: January 2026: 222 flights

Show as a table

Month	Flights
Jan 2026	222
Feb 2026	163
Mar 2026	167
Apr 2026	99
May 2026	43
Jun 2026	44

Airlines flying ICN–VTE nonstop

Airline	Flights / week	Passengers, 6 months	Share of passengers
7CJeju Air	9.1	38,458	37%
QVLao Airlines	12	32,203	31%
TWTrinity Airways	6.3	26,915	26%
BXAir Busan	1.5	5,737	6%

Both directions, Jan 2026 – Jun 2026. Airlines with at least one flight a month. Incheon International Airport Corporation (Korea), scheduled passenger flights. Sources

Delay compensation (EU261 / UK261)

Measured by great-circle distance: 3,179 km.

Neither EU261 nor UK261 covers this route: it neither starts nor ends in the EU, EEA, Switzerland or the UK. Other countries have their own rules (for example Canada's APPR or Brazil's ANAC rules).

Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.

Every airport pair between Seoul and Vientiane

	VTE
ICN	3,177
GMP	3,207

Kilometres. Linked numbers have a page of their own. All Seoul airports

More routes from ICN

Route	To	Distance	Passengers
ICN → NRT	Tokyo, Japan	1,260 km	2,519,026 (6 mo)
ICN → KIX	Osaka, Japan	862 km	2,313,960 (6 mo)
ICN → FUK	Fukuoka, Japan	563 km	1,708,245 (6 mo)
ICN → HKG	Hong Kong, Hong Kong	2,067 km	1,316,010 (6 mo)
ICN → TPE	Taoyuan, Taiwan	1,460 km	1,184,972 (6 mo)
ICN → PVG	Shanghai, China	821 km	1,111,272 (6 mo)
ICN → BKK	Bangkok, Thailand	3,665 km	950,069 (6 mo)
ICN → DAD	Da Nang, Vietnam	2,976 km	941,076 (6 mo)
ICN → SIN	Singapore, Singapore	4,614 km	900,158 (6 mo)
ICN → TAO	Qingdao, China	580 km	797,360 (6 mo)

Questions

Seoul (ICN) and Vientiane (VTE) are 3,177 km (1,974 miles, 1,715 nautical miles) apart, measured along the shortest path over the earth's surface.