Cheap flights from Beijing to Koh Samui from $485 PEK, PKX → USM
Beijing Capital International Airport (PEK), Beijing Daxing International Airport (PKX) → Koh Samui Airport (USM)
The cheapest return found recently is $485 with China Eastern, 19 Jun 2027 – 3 Jul 2027, found 2 days ago.
- Cheapest return found recently
- $485, 19 Jun 2027 to 3 Jul 2027
- Usual return price
- $510 to $608
- Cheapest month to fly
- June 2027, return fares from $469 found in the last 7 days
Return
The cheapest return fare on each of 12 departure dates is usually $510 to $608.
Cheapest return found recently
$485
19 Jun 2027 – 3 Jul 2027 · China Eastern
Beijing Daxing International Airport (PKX) → Koh Samui Airport (USM)
Leaves 12:30 p.m. · Return leaves 7:50 a.m. · 46 h 5 min of travel, both ways together
out 2 stops, back 2 stops · via Kunming Changshui International Airport (KMG), Suvarnabhumi Airport (BKK) · overnight connection · 12 h connection
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$485 19 Jun 2027 – 3 Jul 2027found 2 days agoSee prices for these dates
$469 4 Jun 2027 – 10 Jun 2027found 3 days agoSee prices for these dates
What have prices looked like?
Over 43 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $432 to $625.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 12 departure dates from 26 Nov to 17 Jul 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold 14-night return fares on 2 other departure dates within 3 days of 19 Jun 2027, and none is cheaper.
Every date we hold
141 fares on 12 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 26 Nov – 20 Dec | $513 | China United Airlines | Beijing Daxing International Airport (PKX) → Koh Samui Airport (USM) | out 2 stops, back 2 stops | found 7 days ago | See prices for these dates |
| 22 Dec – 14 Jan 2027 | $617 | Shenzhen Airlines | Beijing Capital International Airport (PEK) → Koh Samui Airport (USM) | out 2 stops, back 2 stops | found 7 days ago | See prices for these dates |
| 26 Jan 2027 – 3 Feb 2027 | $578 | Juneyao Airlines | Beijing Daxing International Airport (PKX) → Koh Samui Airport (USM) | out 2 stops, back 2 stops | found 5 days ago | See prices for these dates |
| 3 Mar 2027 – 24 Mar 2027 | $607 | China Southern Airlines | Beijing Daxing International Airport (PKX) → Koh Samui Airport (USM) | out 2 stops, back 2 stops | found 2 days ago | See prices for these dates |
| 18 Mar 2027 – 2 Apr 2027 | $598 | Cathay Pacific | Beijing Capital International Airport (PEK) → Koh Samui Airport (USM) | out 2 stops, back 2 stops | found 7 days ago | See prices for these dates |
| 20 Mar 2027 – 29 Mar 2027 | $610 | China Eastern | Beijing Daxing International Airport (PKX) → Koh Samui Airport (USM) | out 2 stops, back 2 stops | found 8 days ago | See prices for these dates |
| 3 Jun 2027 – 25 Jun 2027 | $560 | THAI Airways | Beijing Capital International Airport (PEK) → Koh Samui Airport (USM) | out 1 stop, back 2 stops | found 2 days ago | See prices for these dates |
| 4 Jun 2027 – 10 Jun 2027 | $469 | China Eastern | Beijing Daxing International Airport (PKX) → Koh Samui Airport (USM) | out 2 stops, back 2 stops | found 3 days ago | See prices for these dates |
| 18 Jun 2027 – 3 Jul 2027 | $542 | China Eastern | Beijing Daxing International Airport (PKX) → Koh Samui Airport (USM) | out 2 stops, back 2 stops | found 2 days ago | See prices for these dates |
| 19 Jun 2027 – 3 Jul 2027 | $485 | China Eastern | Beijing Daxing International Airport (PKX) → Koh Samui Airport (USM) | out 2 stops, back 2 stops | found 2 days ago | See prices for these dates |
| 20 Jun 2027 – 4 Jul 2027 | $498 | China Eastern | Beijing Daxing International Airport (PKX) → Koh Samui Airport (USM) | out 2 stops, back 2 stops | found 2 days ago | See prices for these dates |
| 17 Jul 2027 – 29 Jul 2027 | $638 | THAI Airways | Beijing Capital International Airport (PEK) → Koh Samui Airport (USM) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
Which month looks cheapest?
June 2027 is the cheapest month — from $469.
Airlines on the cheapest dates: China Eastern, THAI Airways, China United Airlines, Shenzhen Airlines, Juneyao Airlines, China Southern Airlines, Cathay Pacific.
Premium cabin fares from Beijing to Koh Samui
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 19 Jun 2027 – 3 Jul 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Beijing to Koh Samui?
Return
The cheapest fares were 14 to 29 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (43 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $441 | $432 | Cheapest seen | 22 |
| 30–59 days | $577 | $434 | +31% | 14 |
| 60–89 days | $586 | $570 | +33% | 16 |
| 90–179 days | $511 | $470 | +16% | 42 |
| 180+ days | $477 | $445 | +8% | 32 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Beijing → Surat Thani
94 km from Koh Samui
$614
$129 more than flying to Koh Samui
9 Feb 2027 – 11 Feb 2027 · PEK → URT · out 1 stop, back 3 stops
found 4 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 19 Jun 2027 – 3 Jul 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Beijing to Koh Samui?
The cheapest return found recently is $485 with China Eastern, 19 Jun 2027 to 3 Jul 2027, found 2 days ago. The cheapest return we hold, of any age, is $469 with China Eastern, 4 Jun 2027 to 10 Jun 2027, found 3 days ago. The cheapest return fare on each of 12 departure dates is usually $510 to $608.
What is the cheapest month to fly from Beijing to Koh Samui?
June 2027 is the cheapest month for a return, from $469, 4 Jun 2027 to 10 Jun 2027, found 3 days ago.
How far ahead should I book a flight from Beijing to Koh Samui?
In 43 days of prices between 24 Sept and 11 Nov, return fares were cheapest 14 to 29 days before departure.
Which airlines have the cheapest flights from Beijing to Koh Samui?
Between 26 Nov and 17 Jul 2027, China Eastern has the cheapest return on 5 of the 12 departure dates we hold, THAI Airways on 2 and China United Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work