Cheap flights from Phnom Penh to Hanoi from $165 KTI → HAN
Techo International (KTI) → Noi Bai International Airport (HAN)
The cheapest one-way found recently is $165 with Vietnam Airlines, 28 Mar 2027, found 2 days ago.
- Cheapest one-way found recently
- $165, Vietnam Airlines, found 2 days ago
- Cheapest month to fly
- December 2026, one-way fares from $139 found in the last 7 days
- Airlines with nonstop flights
- Vietnam Airlines
- Shortest nonstop flight found
- 1 h 55 min
One-way
The cheapest one-way fare on each of 6 departure dates is usually $150 to $167.
Cheapest one-way found recently
$165
28 Mar 2027 · Vietnam Airlines
Techo International (KTI) → Noi Bai International Airport (HAN)
Leaves 8:05 p.m. · 1 h 55 min trip
nonstop
found 2 days ago
Cheapest nonstop one-way
$165
28 Mar 2027 · Vietnam Airlines
Techo International (KTI) → Noi Bai International Airport (HAN)
Leaves 8:05 p.m. · 1 h 55 min trip
nonstop
found 2 days ago
Found recently, and the cheapest we hold
$165 28 Mar 2027found 2 days agoOpen this trip
$139 1 Decfound 7 days agoOpen this trip
What have prices looked like?
Over 44 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $125 to $181.
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 6 departure dates from 1 Dec to 28 Mar 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 28 Mar 2027 to compare.
Every date we hold
6 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Dec | $139 | Air Cambodia | Techo International (KTI) → Noi Bai International Airport (HAN) | stops unknown | found 7 days ago | Open this trip |
| 30 Dec | $159 | Vietnam Airlines | Techo International (KTI) → Noi Bai International Airport (HAN) | stops unknown | found 3 days ago | Open this trip |
| 15 Feb 2027 | $167 | Vietnam Airlines | Techo International (KTI) → Noi Bai International Airport (HAN) | nonstop | found 7 days ago | Open this trip |
| 22 Feb 2027 | $168 | Air Cambodia | Techo International (KTI) → Noi Bai International Airport (HAN) | 1 stop | found 3 days ago | Open this trip |
| 12 Mar 2027 | $147 | Vietnam Airlines | Techo International (KTI) → Noi Bai International Airport (HAN) | nonstop | found 3 days ago | Open this trip |
| 28 Mar 2027 | $165 | Vietnam Airlines | Techo International (KTI) → Noi Bai International Airport (HAN) | nonstop | found 2 days ago | Open this trip |
Which month looks cheapest?
December 2026 is the cheapest month — from $139.
Airlines on the cheapest dates: Vietnam Airlines, Air Cambodia.
Premium cabin fares from Phnom Penh to Hanoi
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 28 Mar 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Phnom Penh to Hanoi?
One-way
The cheapest fares were 30 to 59 days before departure.
From the cheapest one-way each day between 24 Sept and 11 Nov (44 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 | $167 | $139 | +5% | 10 |
| 30–59 days | $159 | $130 | Cheapest seen | 9 |
| 60–89 days | $165 | $141 | +4% | 25 |
| 90–179 days | $170 | $143 | +7% | 35 |
| 180+ days | $181 | $153 | +14% | 8 |
Live price for these dates
The cheapest one-way found recently is for 28 Mar 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 one-way flight from Phnom Penh to Hanoi?
The cheapest one-way found recently is $165 with Vietnam Airlines, 28 Mar 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $139 with Air Cambodia, 1 Dec, found 7 days ago. The cheapest one-way fare on each of 6 departure dates is usually $150 to $167.
What is the cheapest month to fly from Phnom Penh to Hanoi?
December 2026 is the cheapest month for a one-way, from $139, 1 Dec, found 7 days ago.
How far ahead should I book a flight from Phnom Penh to Hanoi?
In 44 days of prices between 24 Sept and 11 Nov, one-way fares were cheapest 30 to 59 days before departure.
Is there a direct flight from Phnom Penh to Hanoi?
Yes, the cheapest nonstop one-way found recently is $165 with Vietnam Airlines, 28 Mar 2027, found 2 days ago.
How long is the flight from Phnom Penh to Hanoi?
The cheapest nonstop one-way found recently, with Vietnam Airlines on 28 Mar 2027, takes 1 h 55 min from Techo International (KTI) to Noi Bai International Airport (HAN).
Which airlines have the cheapest flights from Phnom Penh to Hanoi?
Between 1 Dec and 28 Mar 2027, Vietnam Airlines has the cheapest one-way on 4 of the 6 departure dates we hold, and Air Cambodia on 2.
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