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Cheap flights from Hong Kong to Hanoi from HK$474

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 26-10. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — HAN
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Hong Kong Intl to Hanoi Noibai are usually found in October or November, booked 81 days in advance, depart on a Monday or Wednesday 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 15 September 2025.

Round-trip from

HK$926

One-way from

HK$474

Popular in

January

Cheapest in

October

Average price

HK$1,190

Good round-trip deal

HK$930 or less

Good one-way deal

HK$468 or less
HK Express
  • HK Express
  • 29-10-5-11
  • Nonstop
  • 4h 25m total
  • Hong Kong to Hanoi
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HK Express
  • HK Express
  • 26-10
  • Nonstop
  • 2h 05m total
  • Hong Kong to Hanoi
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (HK$2,497 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (HK$451 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Hong Kong Intl to Hanoi Noibai.
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Price to beat on a one-way flight from Hong Kong Intl to Hanoi Noibai.
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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 15 September 2025.

Wed 29-1007:25HKG - HAN
Nonstop2h 20mHK Express
Wed 5-1109:30HAN - HKG
Nonstop2h 05mHK Express
Deal found 14-9HK$926
Fri 19-907:45HKG - HAN
Nonstop2h 05mHK Express
Sun 21-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 14-9HK$933
Thu 13-1107:25HKG - HAN
Nonstop2h 20mHK Express
Sun 16-1121:55HAN - HKG
Nonstop2h 00mHK Express
Deal found 13-9HK$941
Wed 24-907:45HKG - HAN
Nonstop2h 05mHK Express
Tue 30-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 12-9HK$949
Wed 17-907:45HKG - HAN
Nonstop2h 05mHK Express
Sat 20-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 14-9HK$957
Tue 14-1007:45HKG - HAN
Nonstop2h 05mHK Express
Tue 21-1009:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 14-9HK$972
Thu 25-907:45HKG - HAN
Nonstop2h 05mHK Express
Sun 28-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 13-9HK$988
Thu 9-1007:45HKG - HAN
Nonstop2h 05mHK Express
Sun 19-1009:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 12-9HK$996
Thu 18-907:45HKG - HAN
Nonstop2h 05mHK Express
Sun 21-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 15-9HK$1,003
Sun 23-1120:05HKG - HAN
Nonstop2h 05mHK Express
Tue 25-1109:30HAN - HKG
Nonstop2h 05mHK Express
Deal found 13-9HK$1,011
Fri 19-907:45HKG - HAN
Nonstop2h 05mHK Express
Mon 22-909:35HAN - HKG
Nonstop2h 05mHK Express
Deal found 14-9HK$1,027
Wed 19-1107:25HKG - HAN
Nonstop2h 20mHK Express
Wed 26-1109:30HAN - HKG
Nonstop2h 05mHK Express
Deal found 13-9HK$1,034

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 15 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

Tue 14-10

07:45-08:50

Nonstop2h 05m

Hanoi Noibai

Tue 21-10

09:35-12:40

Nonstop2h 05m

HK$972

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Sat 4-10

07:45-08:50

Nonstop2h 05m

Hanoi Noibai

Fri 10-10

09:35-12:40

Nonstop2h 05m

HK$1,221

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Fri 31-10

07:25-08:45

Nonstop2h 20m

Hanoi Noibai

Sun 9-11

05:50-13:00

1 stop6h 10m

HK$1,322

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Tue 4-11

16:50-22:55

1 stop7h 05m

Hanoi Noibai

Thu 6-11

09:30-12:35

Nonstop2h 05m

HK$1,439

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Wed 29-10

07:25-08:45

Nonstop2h 20m

Hanoi Noibai

Wed 5-11

23:25-00:25

2 stops24h 00m

HK$1,478

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Thu 2-10

07:45-08:50

Nonstop2h 05m

Hanoi Noibai

Sat 11-10

09:35-12:40

Nonstop2h 05m

HK$1,750

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Mon 29-9

19:50-07:55

1 stop13h 05m

Hanoi Noibai

Thu 2-10

09:35-12:40

Nonstop2h 05m

HK$1,766

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Tue 20-1

13:40-01:50

1 stop13h 10m

Hanoi Noibai

Thu 22-1

02:50-12:30

1 stop8h 40m

HK$1,812

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Tue 4-11

11:15-01:50

1 stop15h 35m

Hanoi Noibai

Wed 5-11

02:50-17:55

1 stop14h 05m

HK$1,828

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Tue 9-12

16:50-20:15

1 stop4h 25m

Hanoi Noibai

Thu 11-12

15:30-22:45

1 stop6h 15m

HK$1,898

Flights are sorted by cheapest return flights first.

Deals found on 14-9

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 12 September 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 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 15 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.

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 15 September 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.
Cathay Pacific
7.6
Good
993 reviews
Check prices

Comfort

7.6

Food

7.3

Crew

8.1

Overall

7.6

Entertainment

7.8

Boarding

7.9

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

Comfort

7.6

Food

7.3

Crew

8.1

Overall

7.6

Entertainment

7.8

Boarding

7.9

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

Comfort

7.6

Food

7.3

Crew

8.1

Overall

7.6

Entertainment

7.8

Boarding

7.9

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 9 outbound flights from Hong Kong Intl to Noibai offered by 3 different airlines.

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

    Flights from Hong Kong Intl to Hanoi Noibai have been viewed 628 times in the past calendar month.

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

    HK Express can get you from Hong Kong to Hanoi in just under 2h 05m. 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$907. Additional round-trip tickets that might be worth considering are offered by Vietnam Airlines and Cathay Pacific, with the lowest prices starting at HK$1,216 and HK$1,219, respectively. HK Express is priced at 28% 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 HK Express (80%), British Airways (59%) or Qatar Airways (55%) 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$466. On average you can expect to pay HK$715. The most popular route, (Hong Kong Intl - Hanoi Noibai), can usually be booked for HK$1,237.

  • 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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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 15 September 2025.
HK Express flights from Hong Kong Intl to Hanoi Noibai
Vietnam Airlines flights from Hong Kong Intl to Hanoi Noibai
Cathay Pacific flights from Hong Kong Intl to Hanoi Noibai

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 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
HK ExpressCheapestHK$907AverageHK$1,060FlexibilityNo cancel feeOn-time90%
Search HK Express flights
Cathay PacificCheapestHK$1,039AverageHK$2,251FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Vietnam AirlinesCheapestHK$1,245AverageHK$1,795FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Hong Kong to Hanoi. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Hong Kong to Hanoi?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Hanoi from Hong Kong.

Can Cheapflights find flights from Hong Kong to Hanoi with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Hong Kong to Hanoi flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Hong Kong to Hanoi become cheaper?

Of course! You can now track prices for flights from Hong Kong to Hanoi and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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