Sanya to Hanoi SYX → HAN
Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN)
The cheapest return found recently is $244 with China Southern Airlines, 25 Nov – 13 Dec, found yesterday. The cheapest one-way found recently is $131 with HK Express, 7 Mar 2027, found 2 days ago.
Return
The cheapest return fare on each of 6 departure dates is usually $244 to $253.
Cheapest return found recently
$244
25 Nov – 13 Dec · China Southern Airlines
Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN)
Leaves 7:00 a.m. · Return leaves 3:45 p.m. · 21 h 10 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$244 25 Nov – 13 Decfound yesterdaySee prices for these dates
$237 18 Nov – 25 Novfound 4 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 $227 to $250.
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 6 departure dates from 22 Oct to 22 Dec, 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 18-night return fares leaving within 3 days of 25 Nov to compare.
Every date we hold
7 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 22 Oct – 3 Nov | $255 | China Southern Airlines | Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 18 Nov – 25 Nov | $237 | China Southern Airlines | Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 25 Nov – 13 Dec | $244 | China Southern Airlines | Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 26 Nov – 15 Dec | $244 | China Southern Airlines | Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 30 Nov – 17 Dec | $248 | China Southern Airlines | Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 22 Dec – 24 Dec | $254 | China Southern Airlines | Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $237.
Airlines on the cheapest dates: China Southern Airlines.
One-way
The cheapest one-way fare on each of 4 departure dates is usually $131 to $153.
Cheapest one-way found recently
$131
7 Mar 2027 · HK Express
Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN)
Leaves 8:50 p.m. · 13 h trip
1 stop
found 2 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$131 7 Mar 2027found 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 6 days, 13 Oct to 18 Oct, the cheapest one-way we saw each day was $131 to $209.
At $131, the cheapest one-way found recently is at the low end of that range.
6 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 4 departure dates from 7 Mar 2027 to 4 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?
No. We hold one-way fares on 2 other departure dates within 3 days of 7 Mar 2027, and none is cheaper.
Every date we hold
4 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 7 Mar 2027 | $131 | HK Express | Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN) | 1 stop | found 2 days ago | Open this trip |
| 8 Mar 2027 | $131 | HK Express | Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN) | 1 stop | found 2 days ago | Open this trip |
| 9 Mar 2027 | $134 | Shandong Airlines | Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN) | 1 stop | found 2 days ago | Open this trip |
| 4 Apr 2027 | $208 | Xiamen Airlines | Sanya Phoenix International Airport (SYX) → Noi Bai International Airport (HAN) | 1 stop | found 4 days ago | Open this trip |
Which month looks cheapest?
March 2027 is the cheapest month — from $131.
Airlines on the cheapest dates: HK Express, Shandong Airlines, Xiamen Airlines.
Premium cabin fares from Sanya 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 25 Nov – 13 Dec in another cabin: Premium economy · Business · First
Today's prices for 7 Mar 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Sanya to Hanoi?
Return
Fares 14 to 29 days before departure were typically 14% 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 | $277 | $255 | +17% | 7 |
| 7–13 days | $241 | $241 | +2% | 11 |
| 14–29 days | $237 | $227 | Cheapest seen | 21 |
| 30–59 days | $295 | $237 | +25% | 12 |
| 60–89 days | $252 | $245 | +6% | 17 |
| 90–179 days | $270 | $260 | +14% | 16 |
One-way
Not enough history yet: we have 6 days of one-way prices, 13 Oct to 18 Oct, and compare booking times once 3 booking ranges have 7 days each.
Live price for these dates
The cheapest return found recently is for 25 Nov – 13 Dec. 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