Cheap flights from Haikou to Hanoi from $141 HAK → HAN

Found recently, and the cheapest we hold

What have prices looked like?

Over 45 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $238 to $269.

At $278, the cheapest return found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

No. We hold 16-night return fares on 1 other departure date within 3 days of 20 Jan 2027, and it is not cheaper.

Every date we hold

3 fares on 3 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $251.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $126 to $210.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 28 Feb 2027 to compare.

Every date we hold

6 fares on 5 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $126.

Return

The cheapest fares were 7 to 13 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (45 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.

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 (49 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.

How much is a return flight from Haikou to Hanoi?

The cheapest return found recently is $278 with China Southern Airlines, 20 Jan 2027 to 5 Feb 2027, found 2 days ago. The cheapest return we hold, of any age, is $251 with Hainan Airlines, 15 Nov to 6 Dec, found 7 days ago. The cheapest return fare on each of 3 departure dates is usually $265 to $323.

How much is a one-way flight from Haikou to Hanoi?

The cheapest one-way found recently is $141 with China Southern Airlines, 28 Feb 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $126 with Shenzhen Airlines, 15 Dec, found 5 days ago. The cheapest one-way fare on each of 5 departure dates is usually $127 to $151.

What is the cheapest month to fly from Haikou to Hanoi?

November 2026 is the cheapest month for a return, from $251, 15 Nov to 6 Dec, found 7 days ago. December 2026 is the cheapest month for a one-way, from $126, 15 Dec, found 5 days ago.

How far ahead should I book a flight from Haikou to Hanoi?

In 45 days of prices between 24 Sept and 11 Nov, return fares were cheapest 7 to 13 days before departure. In 49 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 Haikou to Hanoi?

Yes, the cheapest nonstop return found recently is $251 with Hainan Airlines, 15 Nov to 6 Dec, found 7 days ago.

How long is the flight from Haikou to Hanoi?

The cheapest one-way found recently, with China Southern Airlines on 28 Feb 2027, takes 19 h 45 min with 1 stop.

Which airlines have the cheapest flights from Haikou to Hanoi?

Between 15 Nov and 20 Jan 2027, China Southern Airlines has the cheapest return on 2 of the 3 departure dates we hold, and Hainan Airlines on 1. Between 15 Dec and 2 Apr 2027, China Southern Airlines has the cheapest one-way on 3 of the 5 departure dates we hold, and Shenzhen Airlines on 2.