Ko Samui to Udon Thani flight

Flights from Ko Samui to Udon Thani start at €114.60 and take 8h 7m at their fastest.

IndiaMyanmar (Burma)CambodiaBay of BengalSouth China SeaShenzhenShenzhenHo Chi Minh CityHo Chi Minh CityHanoiHanoiChennaiChennaiKolkataKolkataYangonYangonChittagongChittagongZhongshanZhongshanQuezon CityQuezon CityHaikouHaikouNagpurNagpurRasapūdipalemRasapūdipalemKallakurichiKallakurichiCan ThoCan ThoZhanjiangZhanjiangHuếHuếKo SamuiKo SamuiUdon ThaniUdon ThaniMap data: Natural Earth, GeoNames (CC BY 4.0)Map data: Natural Earth, GeoNames (CC BY 4.0)
Clock Roundabout, Udon Thani, Thailand

The Flights from Ko Samui to Udon Thani starts at €114.60 and takes 8h 7m door to door, run by 2 operators over 962 km, with around 1 departure a day. Fares bottom out about 90 days before departure.

Checked September 23, 2026Priced for October 12, 2026One passenger, all fees included

  • 8h 7mDoor to door
  • 4h 44mMoving
  • €122.86 to €364.76From
  • 07:30 to 07:30First and last departure
  • 1Per day
  • 117.5 kgCO2

First and last are taken from the services we sell on October 12, 2026. The return direction keeps its own timetable and is not these times reversed.

€122.86 to €364.76 for one passenger across the 14 departure dates priced here. The low end is one day, not every day. Typical for this corridor. The operator sets the price on the day.

Where to buy this flight

We take the payment for this one, so the booking finishes here and you never leave.

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Fares by date

What this journey usually costs, by departure date. It shows which days run dearer.

Typical fares

  1. about €364.76Thu24
  2. about €275.67Fri25
  3. about €271.54Sat26
  4. about €193.66Sun27
  5. about €170.06Mon28
  6. about €145.28Tue29
  7. about €168.29Wed30
  8. about €187.17Thu1
  9. about €157.67Fri2
  10. about €179.50Sat3
  11. about €158.26Sun4
  12. about €148.82Mon5
  13. about €122.86Tue6
  14. about €129.35Wed7

Based on what this route has cost recently. The live fare is confirmed when you book.

Real services

The cheapest and the fastest on October 12, 2026

Cheapest€114.60
  1. Bangkok Airways BA563007:301h 7m08:37Samui International Airport USMSuvarnabhumi Airport BKK
  2. การรถไฟแห่งประเทศไทย S-310110:033h 37m13:40PradiphatUdon Thani Railway Station

Changes at Bangkok, with 86 minutes between services and a walk of about 14 minutes.

Door to door 8h 7mCO2 117.5 kgChanges 1Fixed, no changes

Carriers

Airlines

Every operator we sell on this corridor. Speed is the carrier's own typical cruising speed, not the average over this route.
OperatorTypical speedFlexibilityOn board
Bangkok Airways740 km/hFixed fareNot published
การรถไฟแห่งประเทศไทย140 km/hRefundablePower outlets, Wi-Fi

The flight gets you into Udon Thani. These two partners take it from there, and the bed is theirs to book.

A hotel room

A room in Udon Thani for the night the flight gets in

Sort by distance from Udon Thani Railway Station and you can see which places are ten minutes on foot and which are not.

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Booking window

When to book Ko Samui to Udon Thani

The same search run across the whole booking window, so the shape of the curve is visible rather than described.

  1. €102.2190 days
  2. €111.0660 days
  3. €112.8345 days
  4. €110.4730 days
  5. €122.8621 days
  6. €129.3514 days
  7. €168.297 days
  8. €271.543 days
  9. €364.761 days
Cheapest lead time
Fares bottom out around 90 days ahead, at €102.21.
How much it moves
The gap between the cheapest and most expensive lead time is 257 percent. The most expensive point is €364.76, 1 days out.
What that means
Today sits inside the cheap window, which closes about 90 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Day of the week

Which departure day costs least

Median cheapest fare for each weekday, taken across the next three weeks of real prices.

  1. €158.26Sun
  2. €148.82Mon
  3. €122.86Tue
  4. €129.35Wed
  5. €187.17Thu
  6. €157.67Fri
  7. €179.50Sat
Terminals

Where you leave from and where you arrive

Ko Samui

Air
  • USM

Udon Thani

Air
  • UTH
The journey

What the journey looks like

Direct or connecting
0% of the services we sell on this corridor run through without a change. The remaining 100% involve one connection.
How far it really runs
The route covers 962 km against 929 km in a straight line, a detour of 4 percent. Track and road geometry account for the difference.
Where the change is
Connections are made at Bangkok. The gap between arriving and leaving is 86 minutes, of which about 14 is walking.
If the connection is missed
The tightest connection we sell here has a 11 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
First and last departure
The first service of the day leaves Ko Samui at 07:30 and the last at 07:30, across 1 departure The return direction keeps its own timetable, so the times back are not these times reversed.

Questions about Ko Samui to Udon Thani

The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.

How long does the Flight from Ko Samui to Udon Thani take?

The Flight from Ko Samui to Udon Thani takes 8h 7m door to door, of which 4h 44m is spent moving. The route runs 962 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.

How much does the Flight from Ko Samui to Udon Thani cost?

The Flight from Ko Samui to Udon Thani starts at €114.60 for one passenger, as of September 23, 2026. A typical fare is €114.60. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.

Who runs the Flight from Ko Samui to Udon Thani?

2 operators run the Flight from Ko Samui to Udon Thani: Bangkok Airways, การรถไฟแห่งประเทศไทย. Between them they file around 1 departure a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.

Which terminal does the Flight from Ko Samui to Udon Thani use?

The Flight from Ko Samui to Udon Thani leaves from Samui International Airport USM and arrives at Udon Thani Railway Station. Allow about 1h 57m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.

When should I book the Flight from Ko Samui to Udon Thani?

Fares for the Flight from Ko Samui to Udon Thani bottom out around 90 days ahead, at €102.21. The gap between the cheapest and most expensive lead time across the window is 257 percent, measured on September 23, 2026. Booking inside the final week has consistently cost more.

How much CO2 does the Flight from Ko Samui to Udon Thani produce?

The Flight from Ko Samui to Udon Thani produces about 117.5 kg of CO2 per passenger over 962 km, which works out at roughly 122 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.

What is provided on board the Flight from Ko Samui to Udon Thani?

Operators on the Flight from Ko Samui to Udon Thani publish Power outlets, Wi-Fi. That is what 2 carriers on this corridor state about their own fleets, across a journey of 8h 7m door to door. Where a carrier publishes nothing, this page lists nothing for it.

Where these numbers come from

Places, coordinates, operators, which operator serves which pair, and every distance on this page are real and come from open data. Where a corridor has a filed timetable the departure times are real too, and ferry fares are the prices the operators publish themselves.

Observed service A carrier record names this operator on this pair, carried through unchanged.

Prices come from the supplier wherever we hold a live quote. Elsewhere we show an indicative price built from the real distance, the real operator and a fare curve over lead time, day of the week and season. Those are labeled Estimated fare and cannot be booked.

Defined in full at Door to door, Fares, The booking window, Carbon

On this page
Every figure above was computed for Ko Samui to Udon Thani on September 23, 2026: 962 km of route against 929 km in a straight line, 1 services a day, 2 operators a cheapest fare of €114.60, and 8h 7m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.

Related journeys

The fare from UTH into Udon Thani is set by whoever drives it.

A taxi stand outside an airport terminal

A car waiting when you land in Udon Thani

Settled in advance, so the ride into Udon Thani costs what it said it would rather than what the cab stand says.

Partner links. We earn a commission on a booking, and the fare is the same as going direct.

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