Cheap flights from Phnom Penh to Vientiane from $163 KTI → VTE
Techo International (KTI) → Wattay International Airport (VTE)
The cheapest return found recently is $398 with Vietnam Airlines, 27 Nov – 29 Nov, found 2 days ago. The cheapest one-way found recently is $163 with Air Cambodia, 29 Jan 2027, found 2 days ago.
- Cheapest one-way found recently
- $163, found 2 days ago
- Cheapest return found recently
- $398, 27 Nov to 29 Nov
- Usual return price
- $252 to $434
- Cheapest month to fly
- January 2027, return fares from $245 found in the last 7 days
- Airlines with nonstop flights
- Vietnam Airlines
- Shortest nonstop flight found
- 1 h 35 min
Return
The cheapest return fare on each of 9 departure dates is usually $252 to $434.
Cheapest return found recently
$398
27 Nov – 29 Nov · Vietnam Airlines
Techo International (KTI) → Wattay International Airport (VTE)
Leaves 5:30 p.m. · Return leaves 11:25 a.m. · 3 h 10 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Cheapest nonstop return
$398
27 Nov – 29 Nov · Vietnam Airlines
Techo International (KTI) → Wattay International Airport (VTE)
Leaves 5:30 p.m. · Return leaves 11:25 a.m. · 3 h 10 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$398 27 Nov – 29 Novfound 2 days agoSee prices for these dates
$245 6 Jan 2027 – 10 Jan 2027found 4 days agoSee prices for these dates
What have prices looked like?
Over 42 days, 27 Sept to 11 Nov, the cheapest return we saw each day was $245 to $660.
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 9 departure dates from 27 Nov to 1 Apr 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?
We hold no other 2-night return fares leaving within 3 days of 27 Nov to compare.
Every date we hold
9 fares on 9 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 27 Nov – 29 Nov | $398 | Vietnam Airlines | Techo International (KTI) → Wattay International Airport (VTE) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 1 Dec – 4 Dec | $423 | Thai AirAsia | Techo International (KTI) → Wattay International Airport (VTE) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 16 Dec – 20 Dec | $252 | Air Cambodia | Techo International (KTI) → Wattay International Airport (VTE) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 30 Dec – 3 Jan 2027 | $404 | Vietnam Airlines | Techo International (KTI) → Wattay International Airport (VTE) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 6 Jan 2027 – 10 Jan 2027 | $245 | Air Cambodia | Techo International (KTI) → Wattay International Airport (VTE) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 13 Jan 2027 – 17 Jan 2027 | $246 | Air Cambodia | Techo International (KTI) → Wattay International Airport (VTE) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 1 Feb 2027 – 4 Feb 2027 | $434 | Thai AirAsia | Techo International (KTI) → Wattay International Airport (VTE) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 1 Mar 2027 – 4 Mar 2027 | $434 | Thai AirAsia | Techo International (KTI) → Wattay International Airport (VTE) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 1 Apr 2027 – 4 Apr 2027 | $454 | Vietnam Airlines | Techo International (KTI) → Wattay International Airport (VTE) | out nonstop, back 1 stop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $245.
Airlines on the cheapest dates: Vietnam Airlines, Thai AirAsia, Air Cambodia.
One-way
The cheapest one-way fare on each of 4 departure dates is usually $211 to $254.
Cheapest one-way found recently
$163
29 Jan 2027 · Air Cambodia
Techo International (KTI) → Wattay International Airport (VTE)
Leaves 11:50 a.m. · 1 h 40 min trip
stops unknown
found 2 days ago
Cheapest nonstop one-way
$352
11 Apr 2027 · Air Cambodia
Techo International (KTI) → Wattay International Airport (VTE)
Leaves 5:30 p.m. · 1 h 35 min trip
nonstop
found 4 days ago
Found recently, and the cheapest we hold
$163 29 Jan 2027found 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 40 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $163 to $330.
At $163, the cheapest one-way found recently is at the low end of that range.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 4 departure dates from 29 Jan 2027 to 1 Sept 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?
We hold no other one-way fares leaving within 3 days of 29 Jan 2027 to compare.
Every date we hold
7 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 29 Jan 2027 | $163 | Air Cambodia | Techo International (KTI) → Wattay International Airport (VTE) | stops unknown | found 2 days ago | Open this trip |
| 11 Apr 2027 | $267 | THAI Airways | Techo International (KTI) → Wattay International Airport (VTE) | 1 stop | found 4 days ago | Open this trip |
| 1 Jul 2027 | $249 | Thai AirAsia | Techo International (KTI) → Wattay International Airport (VTE) | 1 stop | found 6 days ago | Open this trip |
| 1 Sept 2027 | $227 | Thai AirAsia | Techo International (KTI) → Wattay International Airport (VTE) | 1 stop | found 6 days ago | Open this trip |
Which month looks cheapest?
January 2027 is the cheapest month — from $163.
Airlines on the cheapest dates: Thai AirAsia, Air Cambodia, THAI Airways.
Premium cabin fares from Phnom Penh to Vientiane
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 27 Nov – 29 Nov in another cabin: Premium economy · Business · First
Today's prices for 29 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Phnom Penh to Vientiane?
Return
The cheapest fares were 14 to 29 days before departure.
From the cheapest return each day between 27 Sept and 11 Nov (42 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 |
|---|---|---|---|---|
| 0–6 days | $430 | $399 | +2% | 18 |
| 7–13 days | $430 | $382 | +2% | 9 |
| 14–29 days | $423 | $382 | Cheapest seen | 7 |
| 30–59 days | $554 | $245 | +31% | 25 |
| 60–89 days | $434 | $246 | +3% | 8 |
One-way
The cheapest fares were 14 to 29 days before departure.
From the cheapest one-way each day between 24 Sept and 11 Nov (40 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 | $203 | $202 | Cheapest seen | 7 |
| 30–59 days | $223 | $214 | +10% | 8 |
| 60–89 days | $229 | $163 | +13% | 11 |
| 90–179 days | $231 | $165 | +14% | 22 |
| 180+ days | $324 | $227 | +60% | 13 |
Live price for these dates
The cheapest return found recently is for 27 Nov – 29 Nov. 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 Phnom Penh to Vientiane?
The cheapest return found recently is $398 with Vietnam Airlines, 27 Nov to 29 Nov, found 2 days ago. The cheapest return we hold, of any age, is $245 with Air Cambodia, 6 Jan 2027 to 10 Jan 2027, found 4 days ago. The cheapest return fare on each of 9 departure dates is usually $252 to $434.
How much is a one-way flight from Phnom Penh to Vientiane?
The cheapest one-way found recently is $163 with Air Cambodia, 29 Jan 2027, found 2 days ago. The cheapest one-way fare on each of 4 departure dates is usually $211 to $254.
What is the cheapest month to fly from Phnom Penh to Vientiane?
January 2027 is the cheapest month for a return, from $245, 6 Jan 2027 to 10 Jan 2027, found 4 days ago. It is the cheapest month for a one-way too, from $163, 29 Jan 2027, found 2 days ago.
How far ahead should I book a flight from Phnom Penh to Vientiane?
In 42 days of prices between 27 Sept and 11 Nov, return fares were cheapest 14 to 29 days before departure. In 40 days of prices between 24 Sept and 11 Nov, one-way fares were cheapest 14 to 29 days before departure.
Is there a direct flight from Phnom Penh to Vientiane?
Yes, the cheapest nonstop return found recently is $398 with Vietnam Airlines, 27 Nov to 29 Nov, found 2 days ago. The cheapest nonstop one-way found recently is $352 with Air Cambodia, 11 Apr 2027, found 4 days ago.
How long is the flight from Phnom Penh to Vientiane?
The cheapest nonstop one-way found recently, with Air Cambodia on 11 Apr 2027, takes 1 h 35 min from Techo International (KTI) to Wattay International Airport (VTE).
Which airlines have the cheapest flights from Phnom Penh to Vientiane?
Between 27 Nov and 1 Apr 2027, Vietnam Airlines has the cheapest return on 3 of the 9 departure dates we hold, Thai AirAsia on 3 and Air Cambodia on 3. Between 29 Jan 2027 and 1 Sept 2027, Thai AirAsia has the cheapest one-way on 2 of the 4 departure dates we hold, Air Cambodia on 1 and THAI Airways 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