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 18-9. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — HAN
3 Sep — 10 Sep1
1 adult

Cheapflights Tip: The best prices from Hong Kong Intl 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

Discover tips and strategies to find the most affordable flight options for your journey from Hong Kong (HKG) to Hanoi (HAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 August 2025.

Round-trip from

HK$935

One-way from

HK$475

Popular in

January

Cheapest in

March

Average price

HK$1,075

Good round-trip deal

HK$931 or less

Good one-way deal

HK$502 or less
HK Express
  • HK Express
  • 2-1-15-1
  • Nonstop
  • 4h 25m total
  • Hong Kong to Hanoi
HK Express
  • HK Express
  • 18-9
  • Nonstop
  • 2h 05m total
  • Hong Kong to Hanoi
Highest demand for flights based on searches. 18% potential increase in price (HK$2,240 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (HK$456 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Hong Kong Intl to Hanoi Noibai.
Price to beat on a one-way flight from Hong Kong Intl to Hanoi Noibai.

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 29 August 2025.

Thu 4-907:45HKG - HAN
Nonstop2h 05mHK Express
Sun 7-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 27-8HK$935
Mon 13-1007:45HKG - HAN
Nonstop2h 05mHK Express
Mon 20-1009:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 29-8HK$943
Fri 5-907:45HKG - HAN
Nonstop2h 05mHK Express
Sun 7-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 27-8HK$951
Thu 13-1107:25HKG - HAN
Nonstop2h 20mHK Express
Sun 16-1109:30HAN - HKG
Nonstop2h 05mHK Express
Deal found 28-8HK$959
Mon 13-1007:45HKG - HAN
Nonstop2h 05mHK Express
Fri 17-1009:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 29-8HK$966
Thu 25-907:45HKG - HAN
Nonstop2h 05mHK Express
Fri 26-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 27-8HK$974
Fri 7-1107:25HKG - HAN
Nonstop2h 20mHK Express
Thu 13-1109:30HAN - HKG
Nonstop2h 05mHK Express
Deal found 27-8HK$990
Thu 6-1107:25HKG - HAN
Nonstop2h 20mHK Express
Mon 10-1109:30HAN - HKG
Nonstop2h 05mHK Express
Deal found 27-8HK$998
Wed 17-907:45HKG - HAN
Nonstop2h 05mHK Express
Tue 23-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 27-8HK$1,005
Tue 9-1220:05HKG - HAN
Nonstop2h 05mHK Express
Fri 12-1209:30HAN - HKG
Nonstop2h 05mHK Express
Deal found 27-8HK$1,013
Wed 17-907:45HKG - HAN
Nonstop2h 05mHK Express
Wed 24-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 29-8HK$1,021

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 29 August 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

Fri 2-1

07:25-08:45

Nonstop2h 20m

Hanoi Noibai

Thu 15-1

09:30-12:35

Nonstop2h 05m

HK$935

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Fri 21-11

07:25-08:45

Nonstop2h 20m

Hanoi Noibai

Sun 23-11

21:55-00:55

Nonstop2h 00m

HK$935

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Thu 30-10

07:25-08:45

Nonstop2h 20m

Hanoi Noibai

Fri 31-10

21:55-00:55

Nonstop2h 00m

HK$935

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Thu 6-11

07:25-08:45

Nonstop2h 20m

Hanoi Noibai

Mon 10-11

09:30-12:35

Nonstop2h 05m

HK$935

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Sat 11-10

07:45-08:50

Nonstop2h 05m

Hanoi Noibai

Thu 16-10

09:35-12:40

Nonstop2h 05m

HK$935

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Mon 27-10

07:25-08:45

Nonstop2h 20m

Hanoi Noibai

Sat 1-11

09:30-12:35

Nonstop2h 05m

HK$935

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Sat 8-11

07:25-08:45

Nonstop2h 20m

Hanoi Noibai

Sun 9-11

21:55-00:55

Nonstop2h 00m

HK$935

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Mon 5-1

07:25-08:45

Nonstop2h 20m

Hanoi Noibai

Sat 17-1

09:30-12:35

Nonstop2h 05m

HK$935

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Tue 21-10

07:45-08:50

Nonstop2h 05m

Hanoi Noibai

Wed 29-10

09:30-12:35

Nonstop2h 05m

HK$935

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Mon 8-9

07:45-08:50

Nonstop2h 05m

Hanoi Noibai

Mon 15-9

09:35-12:40

Nonstop2h 05m

HK$935

Flights are sorted by cheapest return flights first.

Deals found on 28-8

Showing 1-10 of 22 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 22 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 April 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 HKG 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 29 August 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 50% on flights from Hong Kong to Hanoi by exploring options for tickets in the morning.

How much does it cost for a return flight from Hong Kong to Hanoi?

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 29 August 2025.
See what other customers who have flown with Cathay Pacific and Vietnam Airlines from Hong Kong to Hanoi have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.1

Food

7.3

Comfort

7.6

Entertainment

7.8

Boarding

7.9

Overall

7.6

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 .

Crew

8.1

Food

7.3

Comfort

7.6

Entertainment

7.8

Boarding

7.9

Overall

7.6

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 .

Crew

8.1

Food

7.3

Comfort

7.6

Entertainment

7.8

Boarding

7.9

Overall

7.6

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 airports do I use to fly from Hong Kong to Hanoi?

    To fly from Hong Kong to Hanoi, you need to book a flight from Hong Kong Intl (HKG) to Noibai (HAN). Nonstop flights to Hanoi Noibai from Hong Kong Intl take 2h 05m on average. When it comes time to book airfare, you have a few options: there are 10 outbound flights from Hong Kong Intl to Noibai offered by 3 different airlines.

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

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

    HK Express can get you from Hong Kong to Hanoi in just under 2h 20m. Your travel time will be generally consistent. There are 845 km between Hong Kong and Hanoi. Most flights are nonstop.

  • 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$911. 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$1,259, 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?

    Consider British Airways (86%), HK Express (80%) or Qatar Airways (59%) when booking your flight. These represent the most reliable airlines when flying from Hong Kong to Hanoi.

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

    The cheapest flight price from Hong Kong to Hanoi is HK$469. On average you can expect to pay HK$807. The most popular route, (Hong Kong Intl - Hanoi Noibai), can usually be booked for HK$1,247.

  • 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 April 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

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Fly from Hong Kong to Hanoi on these airlines

Choose from the following airlines for your flight from Hong Kong to Hanoi. Flights are based on user searches made on Cheapflights and were last updated on 29 August 2025.

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 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
HK ExpressCheapestHK$911AverageHK$1,072FlexibilityNo cancel feeOn-time90%
Search HK Express flights
Cathay PacificCheapestHK$1,041AverageHK$2,279FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Vietnam AirlinesCheapestHK$1,259AverageHK$1,801FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights

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