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Cheap flights from Hong Kong to Hanoi from HK$475

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17-9. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — HAN
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Hong Kong to Hanoi Noibai are usually found in March or November, booked 81 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Hong Kong to Hanoi

Keep the following information in mind while searching for Hong Kong to Hanoi flight deals. Data was last updated 11 September 2025.

Round-trip from

HK$927

One-way from

HK$475

Popular in

January

Cheapest in

March

Average price

HK$1,200

Good round-trip deal

HK$931 or less

Good one-way deal

HK$468 or less
HK Express
  • HK Express
  • 2-1-11-1
  • Nonstop
  • 4h 25m total
  • Hong Kong to Hanoi
Search Deals
HK Express
  • HK Express
  • 17-9
  • Nonstop
  • 2h 05m total
  • Hong Kong to Hanoi
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (HK$2,291 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (HK$451 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Hong Kong to Hanoi Noibai.
Search Deals
Price to beat on a one-way flight from Hong Kong to Hanoi Noibai.
Search Deals

Find flight deals from Hong Kong to Hanoi

Cheapest flights from Hong Kong to Hanoi
Explore the most affordable flight options available from Hong Kong to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Thu 18-907:45HKG - HAN
Nonstop2h 05mHK Express
Sun 21-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 10-9HK$927
Fri 12-907:45HKG - HAN
Nonstop2h 05mHK Express
Sun 14-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 9-9HK$935
Thu 13-1107:25HKG - HAN
Nonstop2h 20mHK Express
Sun 16-1121:55HAN - HKG
Nonstop2h 00mHK Express
Deal found 10-9HK$942
Tue 23-907:45HKG - HAN
Nonstop2h 05mHK Express
Tue 30-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 9-9HK$966
Thu 25-907:45HKG - HAN
Nonstop2h 05mHK Express
Sun 28-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 10-9HK$989
Fri 19-907:45HKG - HAN
Nonstop2h 05mHK Express
Mon 22-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 10-9HK$997
Sun 5-1007:45HKG - HAN
Nonstop2h 05mHK Express
Mon 13-1009:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 10-9HK$1,005
Wed 17-907:45HKG - HAN
Nonstop2h 05mHK Express
Mon 22-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 10-9HK$1,013
Thu 11-907:45HKG - HAN
Nonstop2h 05mHK Express
Sun 14-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 10-9HK$1,036

Cheapflights Fare Finder

 
Customise your flight search to find flights from Hong Kong to Hanoi that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 11 September 2025.
Use the filters below to find and compare flights from Hong Kong to Hanoi that are best for you.

Fly from

Hong Kong

Fly to

Hanoi

Route

Departure

Return

Price

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Sat 25-10

07:45-08:50

Nonstop2h 05m

Hanoi Noibai

Sat 1-11

09:30-12:35

Nonstop2h 05m

HK$1,098

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Sun 26-10

20:05-21:10

Nonstop2h 05m

Hanoi Noibai

Sun 2-11

22:50-15:00

2 stops15h 10m

HK$1,550

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Sun 5-10

11:20-00:45

1 stop14h 25m

Hanoi Noibai

Sat 11-10

11:25-17:20

1 stop28h 55m

HK$1,760

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Fri 26-9

18:20-00:45

1 stop7h 25m

Hanoi Noibai

Tue 30-9

02:30-12:25

1 stop8h 55m

HK$1,791

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Sun 9-11

16:50-07:05

1 stop15h 15m

Hanoi Noibai

Sun 21-12

11:25-18:50

1 stop6h 25m

HK$1,807

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Wed 29-10

00:05-07:35

1 stop8h 30m

Hanoi Noibai

Sun 2-11

21:55-00:55

Nonstop2h 00m

HK$2,010

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Mon 23-2

22:45-01:50

1 stop28h 05m

Hanoi Noibai

Thu 5-3

02:50-12:30

1 stop8h 40m

HK$2,017

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Mon 10-11

00:05-07:35

1 stop8h 30m

Hanoi Noibai

Sat 22-11

09:30-12:35

Nonstop2h 05m

HK$2,087

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Sun 30-11

10:20-16:30

1 stop7h 10m

Hanoi Noibai

Fri 19-12

11:35-19:00

1 stop6h 25m

HK$2,134

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Sat 1-11

21:10-10:35

1 stop14h 25m

Hanoi Noibai

Tue 4-11

11:35-23:00

1 stop10h 25m

HK$2,134

Flights are sorted by cheapest return flights first.

Deals found on 10-9

Showing 1-10 of 23 results
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Best time to book a flight from Hong Kong to Hanoi

Have a flexible travel schedule? Discover the best time to fly to Hanoi from Hong Kong with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Hong Kong to Hanoi

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

Use this chart to determine the optimal time to book a return flight from Hong Kong to Hanoi. Price data was last updated on 29 August 2025.

Booking 81 days in advance of your planned departure date is, on average, the best time to get cheap flights from Hong Kong to Hanoi. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Hong Kong to Hanoi?

Currently, December is the cheapest month in which you can book a flight from Hong Kong to Hanoi (average of HK$126). Flying from Hong Kong to Hanoi in February is currently the most expensive (average of HK$160). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HK to HAN?

Find hourly flight availability from Hong Kong to Hanoi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 58% on flights from Hong Kong to Hanoi by exploring options for tickets in the evening.

Weekly flight availability from Hong Kong to Hanoi

Explore weekly flight availability from Hong Kong to Hanoi. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 11 September 2025.

The most flights from HK0 to HAN are scheduled on a Thursday (13 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (4 on average).

Reviews of airlines servicing Hanoi

Get insights into the airlines that provide service to Hanoi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Hanoi. Reviews last updated 11 September 2025.
Read reviews from past customers who have flown with Cathay Pacific and Vietnam Airlines from Hong Kong to Hanoi. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
993 reviews
Check prices

Boarding

7.9

Overall

7.6

Comfort

7.6

Food

7.3

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Cathay Pacific
7.6
Good
993 reviews
Cathay Pacific
7.6
Good
993 reviews
Check prices

Boarding

7.9

Overall

7.6

Comfort

7.6

Food

7.3

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Vietnam Airlines
7.6
Good
201 reviews
Cathay Pacific
7.6
Good
993 reviews
Check prices

Boarding

7.9

Overall

7.6

Comfort

7.6

Food

7.3

Crew

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .

Related info for your journey

Find useful and relevant information for your journey from Hong Kong to Hanoi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Hanoi from Hong Kong?

    Located just 22.8 km from the city centre, Hanoi Noibai (HAN) is the airport most travelers will use when flying to Hanoi from Hong Kong.

  • How popular is this Hong Kong to Hanoi flight route?

    Flights from Hong Kong to Hanoi Noibai have been viewed 632 times in the past calendar month.

  • How long is the flight from Hong Kong to Hanoi?

    HK Express and Philippine Airlines can get you from Hong Kong to Hanoi in just under 2h 05m. Your travel time can differ by up to 12h 20m. There are 845 km between Hong Kong and Hanoi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Hong Kong to Hanoi round-trip?

    Flying on HK Express is currently your cheapest option to Hanoi, with prices starting at HK$909. Additional round-trip tickets that might be worth considering are offered by Cathay Pacific and Vietnam Airlines, with the lowest prices starting at HK$1,041 and HK$1,246, respectively. HK Express is priced at 27% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Hong Kong to Hanoi?

    No one likes to see their flight delayed. When booking a flight from Hong Kong to Hanoi consider choosing HK Express(80%), British Airways(59%) or Qatar Airways(55%), as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Hong Kong to Hanoi?

    The cheapest flight price from Hong Kong to Hanoi is HK$466. On average you can expect to pay HK$716. The most popular route, (Hong Kong Intl - Hanoi Noibai), can usually be booked for HK$1,200.

  • Can I find deals for flights from Hong Kong to Hanoi that include hotel bookings?

    Yes. In addition to deals on Hong Kong to Hanoi flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Hong Kong to Hanoi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to Hanoi.

  • Can I find deals for business class flights from Hong Kong to Hanoi?

    Yes. Cheapflights offers flight deals from Hong Kong to Hanoi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Hong Kong to Hanoi?

    Currently, December is the cheapest month in which you can book a flight from Hong Kong to Hanoi (average of HK$126). Flying from Hong Kong to Hanoi in February is currently the most expensive (average of HK$160). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Hong Kong to Hanoi

See prices for flight routes from nearby airports that may be better suited for you.
Hong Kong to Hanoi flights
Hong Kong to Da Nang flights
Hong Kong to Ho Chi Minh City flights

Top 3 airlines flying from Hong Kong to Hanoi

Discover the top 3 airlines that operate flights from Hong Kong to Hanoi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
HK ExpressCheapestHK$909AverageHK$1,062FlexibilityNo cancel feeOn-time90%
Search HK Express flights
Cathay PacificCheapestHK$1,041AverageHK$2,254FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Vietnam AirlinesCheapestHK$1,246AverageHK$1,798FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Hong Kong to Hanoi?

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