Siem Reap to Hanoi SAI → HAN
Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN)
The cheapest return found recently is $207 with Vietjet, 19 Dec – 7 Jan 2027, found yesterday. The cheapest one-way found recently is $94 with Vietjet, 8 Nov, found 21 hours ago.
Return
The cheapest return fare on each of 5 departure dates is usually $176 to $207.
Cheapest return found recently
$207
19 Dec – 7 Jan 2027 · Vietjet
Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN)
Leaves 7:05 p.m. · Return leaves 4:20 p.m. · 3 h 30 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Cheapest nonstop return
$207
19 Dec – 7 Jan 2027 · Vietjet
Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN)
Leaves 7:05 p.m. · Return leaves 4:20 p.m. · 3 h 30 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Found recently, and the cheapest we hold
$207 19 Dec – 7 Jan 2027found yesterdaySee prices for these dates
$166 11 Dec – 19 Decfound 3 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $162 to $194.
At $207, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
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 5 departure dates from 11 Dec to 28 Jan 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 19-night return fares leaving within 3 days of 19 Dec to compare.
Every date we hold
22 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 11 Dec – 19 Dec | $166 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 12 Dec – 19 Dec | $176 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 19 Dec – 7 Jan 2027 | $207 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 17 Jan 2027 – 21 Jan 2027 | $186 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 28 Jan 2027 – 2 Feb 2027 | $253 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $166.
Airlines on the cheapest dates: Vietjet.
One-way
The cheapest one-way fare on each of 33 departure dates is usually $91 to $106.
Cheapest one-way found recently
$94
8 Nov · Vietjet
Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN)
Leaves 7:05 p.m. · 1 h 45 min trip
nonstop
found 21 hours ago
Cheapest nonstop one-way
$94
8 Nov · Vietjet
Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN)
Leaves 7:05 p.m. · 1 h 45 min trip
nonstop
found 21 hours ago
Found recently, and the cheapest we hold
$94 8 Novfound 21 hours agoOpen this trip
$79 25 Octfound 4 days agoOpen this trip
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $76 to $85.
At $94, the cheapest one-way found recently is above that range.
25 days is a short history, so treat this range as an early guide.
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 33 departure dates from 25 Oct to 6 Jun 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?
Yes. Among one-way fares leaving within 3 days of 8 Nov, 5 Nov costs $88: $6 less than the cheapest found recently.
Vietjet · Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) · nonstop · found 3 days ago
Every date we hold
118 fares on 33 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 25 Oct | $79 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 4 days ago | Open this trip |
| 27 Oct | $86 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 2 days ago | Open this trip |
| 3 Nov | $88 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 3 days ago | Open this trip |
| 5 Nov | $88 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 3 days ago | Open this trip |
| 6 Nov | $94 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found yesterday | Open this trip |
| 7 Nov | $94 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 21 hours ago | Open this trip |
| 8 Nov | $94 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 21 hours ago | Open this trip |
| 21 Nov | $140 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 6 days ago | Open this trip |
| 8 Dec | $108 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 6 days ago | Open this trip |
| 15 Dec | $96 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 3 days ago | Open this trip |
| 17 Dec | $92 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 5 days ago | Open this trip |
| 18 Dec | $91 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 5 days ago | Open this trip |
| 19 Dec | $91 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 5 days ago | Open this trip |
| 20 Dec | $91 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 5 days ago | Open this trip |
| 21 Dec | $92 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 5 days ago | Open this trip |
| 23 Dec | $97 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 2 days ago | Open this trip |
| 25 Dec | $97 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 4 days ago | Open this trip |
| 27 Dec | $106 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 6 days ago | Open this trip |
| 28 Dec | $121 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 6 days ago | Open this trip |
| 9 Jan 2027 | $108 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 4 days ago | Open this trip |
| 21 Jan 2027 | $121 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found yesterday | Open this trip |
| 9 Feb 2027 | $122 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 6 days ago | Open this trip |
| 16 Feb 2027 | $88 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 4 days ago | Open this trip |
| 17 Feb 2027 | $95 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 4 days ago | Open this trip |
| 19 Feb 2027 | $91 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 7 days ago | Open this trip |
| 20 Feb 2027 | $88 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 4 days ago | Open this trip |
| 21 Feb 2027 | $98 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 3 days ago | Open this trip |
| 18 Mar 2027 | $91 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 6 days ago | Open this trip |
| 22 Mar 2027 | $91 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 6 days ago | Open this trip |
| 23 Mar 2027 | $88 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 4 days ago | Open this trip |
| 25 Mar 2027 | $89 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 4 days ago | Open this trip |
| 5 Jun 2027 | $109 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 2 days ago | Open this trip |
| 6 Jun 2027 | $109 | Vietjet | Siem Reap International Airport (SAI) → Noi Bai International Airport (HAN) | nonstop | found 2 days ago | Open this trip |
Which month looks cheapest?
October 2026 is the cheapest month — from $79.
Airlines on the cheapest dates: Vietjet.
Premium cabin fares from Siem Reap 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 19 Dec – 7 Jan 2027 in another cabin: Premium economy · Business · First
Today's prices for 8 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Siem Reap to Hanoi?
Return
Fares 7 to 13 days before departure were typically 24% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 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 | $219 | $166 | +32% | 13 |
| 7–13 days | $166 | $162 | Cheapest seen | 9 |
| 14–29 days | $178 | $178 | +7% | 11 |
| 30–59 days | $181 | $166 | +9% | 19 |
| 90–179 days | $212 | $186 | +28% | 25 |
| 180+ days | $194 | $192 | +17% | 17 |
One-way
The cheapest fares were 7 to 13 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 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 | $87 | $78 | +4% | 24 |
| 7–13 days | $83 | $76 | Cheapest seen | 25 |
| 14–29 days | $86 | $82 | +4% | 25 |
| 30–59 days | $86 | $82 | +4% | 25 |
| 60–89 days | $91 | $83 | +10% | 25 |
| 90–179 days | $87 | $82 | +5% | 25 |
| 180+ days | $104 | $101 | +25% | 25 |
Live price for these dates
The cheapest return found recently is for 19 Dec – 7 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
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