Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Hong Kong to Vietnam from HK$635

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 22-4. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SGN
2 May — 9 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Hong Kong to Vietnam

Enter your travel dates to find the best prices.

Cheapest flights from Hong Kong to Vietnam
Explore the most affordable flight options available from Hong Kong to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 April 2026.

Sun 12-407:40
HKG
-
HAN
Nonstop2h 10m
HK Express
Wed 15-409:35
HAN
-
HKG
Nonstop2h 05m
HK Express
Deal found 29-3HK$1,301
Tue 5-522:40
HKG
-
DAD
Nonstop2h 00m
Multiple Airlines
Tue 12-510:05
DAD
-
HKG
Nonstop2h 00m
Multiple Airlines
Deal found 31-3HK$1,332
Wed 13-507:40
HKG
-
HAN
Nonstop2h 10m
HK Express
Wed 20-509:35
HAN
-
HKG
Nonstop2h 05m
HK Express
Deal found 29-3HK$1,340
Sun 12-416:30
HKG
-
DAD
Nonstop1h 55m
HK Express
Thu 16-410:05
DAD
-
HKG
Nonstop2h 00m
HK Express
Deal found 29-3HK$1,340
Thu 16-407:40
HKG
-
HAN
Nonstop2h 10m
HK Express
Tue 21-409:35
HAN
-
HKG
Nonstop2h 05m
HK Express
Deal found 30-3HK$1,348
Tue 12-516:10
HKG
-
PQC
Nonstop2h 55m
Multiple Airlines
Tue 19-511:55
PQC
-
HKG
Nonstop2h 45m
Multiple Airlines
Deal found 31-3HK$1,348
Thu 16-407:40
HKG
-
HAN
Nonstop2h 10m
HK Express
Sun 19-409:35
HAN
-
HKG
Nonstop2h 05m
HK Express
Deal found 30-3HK$1,356
Wed 13-516:30
HKG
-
DAD
Nonstop1h 55m
HK Express
Wed 20-510:05
DAD
-
HKG
Nonstop2h 00m
HK Express
Deal found 29-3HK$1,356
Thu 16-416:40
HKG
-
PQC
Nonstop2h 45m
VietJet Air
Thu 23-411:55
PQC
-
HKG
Nonstop2h 45m
VietJet Air
Deal found 1-4HK$1,356
Sat 30-516:30
HKG
-
DAD
Nonstop1h 55m
HK Express
Sat 6-610:05
DAD
-
HKG
Nonstop2h 00m
HK Express
Deal found 31-3HK$1,364
Thu 14-516:10
HKG
-
PQC
Nonstop2h 55m
Multiple Airlines
Thu 21-511:55
PQC
-
HKG
Nonstop2h 45m
Multiple Airlines
Deal found 29-3HK$1,364
Thu 7-516:30
HKG
-
DAD
Nonstop1h 55m
HK Express
Mon 11-510:05
DAD
-
HKG
Nonstop2h 00m
HK Express
Deal found 30-3HK$1,372

Find flight deals from Hong Kong to Vietnam

Keep the following information in mind while searching for Hong Kong to Vietnam flight deals. Data was last updated 2 April 2026.

Round-trip from

HK$1,301

One-way from

HK$635

Popular in

February

Cheapest in

September

Average price

HK$1,983

Good round-trip deal

HK$1,092 or less

Good one-way deal

HK$536 or less
HK Express
  • HK Express
  • 12-4-15-4
  • Nonstop
  • 4h 15m total
  • Hong Kong to Vietnam
Search Deals
HK Express
  • HK Express
  • 22-4
  • Nonstop
  • 2h 10m total
  • Hong Kong to Vietnam
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (HK$1,775 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (HK$443 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Hong Kong to Vietnam.
Search Deals
Price to beat on a one-way flight from Hong Kong to Vietnam.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Hong Kong to Vietnam 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 2 April 2026.
Use the filters below to find and compare flights from Hong Kong to Vietnam that are best for you.

Fly from

Fly to

Route

Departure

Return

Price

Cheapest return flight

Hong KongPhu Quoc

HKG - PQC

HKGPQC

Hong Kong Intl

Mon 27-7

16:10-18:05

Nonstop2h 55m

Phu Quoc Duong Dang

Sat 1-8

10:40-14:50

Nonstop3h 10m

HK$1,889

Hong KongPhu Quoc

HKG - PQC

HKGPQC

Hong Kong Intl

Tue 14-4

16:10-18:05

Nonstop2h 55m

Phu Quoc Duong Dang

Sun 19-4

21:00-13:35

1 stop15h 35m

HK$1,912

Hong KongHanoi

HKG - HAN

HKGHAN

Hong Kong Intl

Sun 28-6

07:40-08:50

Nonstop2h 10m

Hanoi Noibai

Wed 1-7

06:25-13:05

1 stop5h 40m

HK$1,944

Hong KongPhu Quoc

HKG - PQC

HKGPQC

Hong Kong Intl

Tue 12-5

13:30-19:00

1 stop6h 30m

Phu Quoc Duong Dang

Tue 19-5

11:55-15:40

Nonstop2h 45m

HK$1,991

Hong KongQui Nhon

HKG - UIH

HKGUIH

Hong Kong Intl

Fri 18-9

14:30-12:55

1 stop23h 25m

Qui Nhon

Mon 21-9

15:35-17:25

1 stop24h 50m

HK$2,179

Hong KongDa Nang

HKG - DAD

HKGDAD

Hong Kong Intl

Tue 15-9

18:45-10:25

1 stop16h 40m

Da Nang

Fri 18-9

12:55-13:30

1 stop23h 35m

HK$2,226

Hong KongPhu Quoc

HKG - PQC

HKGPQC

Hong Kong Intl

Mon 27-7

16:10-18:05

Nonstop2h 55m

Phu Quoc Duong Dang

Sat 1-8

14:35-17:25

1 stop25h 50m

HK$2,226

Hong KongHo Chi Minh City

HKG - SGN

HKGSGN

Hong Kong Intl

Sat 8-8

18:45-20:25

Nonstop2h 40m

Ho Chi Minh City

Tue 11-8

06:00-13:30

1 stop6h 30m

HK$2,234

Hong KongHo Chi Minh City

HKG - SGN

HKGSGN

Hong Kong Intl

Sat 8-8

18:45-20:25

Nonstop2h 40m

Ho Chi Minh City

Wed 12-8

22:00-13:30

1 stop14h 30m

HK$2,234

Hong KongHo Chi Minh City

HKG - SGN

HKGSGN

Hong Kong Intl

Tue 21-7

18:45-20:25

Nonstop2h 40m

Ho Chi Minh City

Tue 28-7

06:00-13:30

1 stop6h 30m

HK$2,242

Flights are sorted by cheapest return flights first.

Deals found on 28-3

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Hong Kong to Vietnam

Have a flexible travel schedule? Discover the best time to fly to Vietnam 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 Vietnam

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

Currently, September is the cheapest month in which you can book a flight from Hong Kong to Vietnam (average of HK$792). Flying from Hong Kong to Vietnam in February is currently the most expensive (average of HK$964). 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 VN?

Find hourly flight availability from Hong Kong to Vietnam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 April 2026.

It’s optimal to fly from Hong Kong to Vietnam in the afternoon. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Hong Kong to Vietnam?

Use this chart to determine the cheapest time to fly return from Hong Kong to Vietnam. Price data was last updated on 28 March 2026.

Travellers seeking maximum savings on their Hong Kong to Vietnam flight should consider departing on Monday at midday when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Hong Kong to Vietnam

Explore weekly flight availability from Hong Kong to Vietnam. 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 2 April 2026.

The most flights from HK0 to VN0 are scheduled on a Thursday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

How often are flights from Hong Kong to Vietnam delayed?

About 22% of weekly flights between Hong Kong and Vietnam have experienced delays in the past year, with the average delay time being 109 minutes.

What is the most punctual flight time for Hong Kong to Vietnam flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Hong Kong to Vietnam flights?

Over the past year, Hong Kong Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.

Reviews of airlines servicing Vietnam

Get insights into the airlines that provide service to Vietnam. 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 Vietnam. Reviews last updated 2 April 2026.
Get a feel of what it's like to fly with Vietnam Airlines,Cathay Pacific, andHK Express from Hong Kong to Vietnam by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Vietnam Airlines
7.7
Good
252 reviews
Check prices

Entertainment

6.3

Food

6.9

Overall

7.7

Boarding

7.7

Comfort

7.7

Crew

8.2

Reviews

1 / 15
8.0
Excellent

Stephen,Nov 2025

SYD - SGN

I really liked it. It’s very good value for money.
Vietnam Airlines
7.7
Good
252 reviews
Vietnam Airlines
7.7
Good
252 reviews
Check prices

Entertainment

6.3

Food

6.9

Overall

7.7

Boarding

7.7

Comfort

7.7

Crew

8.2

Reviews

1 / 15
8.0
Excellent

Stephen,Nov 2025

SYD - SGN

I really liked it. It’s very good value for money.
Cathay Pacific
7.6
Good
1,239 reviews
Vietnam Airlines
7.7
Good
252 reviews
Check prices

Entertainment

6.3

Food

6.9

Overall

7.7

Boarding

7.7

Comfort

7.7

Crew

8.2

Reviews

1 / 15
8.0
Excellent

Stephen,Nov 2025

SYD - SGN

I really liked it. It’s very good value for money.
HK Express
7.3
Good
44 reviews
Vietnam Airlines
7.7
Good
252 reviews
Check prices

Entertainment

6.3

Food

6.9

Overall

7.7

Boarding

7.7

Comfort

7.7

Crew

8.2

Reviews

1 / 15
8.0
Excellent

Stephen,Nov 2025

SYD - SGN

I really liked it. It’s very good value for money.
VietJet Air
5.6
Fair
164 reviews
Vietnam Airlines
7.7
Good
252 reviews
Check prices

Entertainment

6.3

Food

6.9

Overall

7.7

Boarding

7.7

Comfort

7.7

Crew

8.2

Reviews

1 / 15
8.0
Excellent

Stephen,Nov 2025

SYD - SGN

I really liked it. It’s very good value for money.

Related info for your journey

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

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

    Flights from Hong Kong to Vietnam have been viewed 492 times in the past calendar month.

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

    A quick flight from Hong Kong to Vietnam can take about 2h 55m. HK Express provides one of the quickest options available for as low as HK$1,889. Airlines will cover a distance of 1714 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Hong Kong to Vietnam one-way?

    HK$334 is the cheapest one-way deal found within the past few days, from Vietnam Airlines. You may also be able to find cheap deals on HK Express and VietJet Air, with prices starting from HK$462 and HK$520, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Hong Kong to Vietnam 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 Vietnam?

    Currently, September is the cheapest month in which you can book a flight from Hong Kong to Vietnam (average of HK$792). Flying from Hong Kong to Vietnam in February is currently the most expensive (average of HK$964). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 8 airlines flying from Hong Kong to Vietnam

Discover the top 8 airlines that operate flights from Hong Kong to Vietnam. 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 2 April 2026.
AirlineCheapestAverageFlexibilityOn-time
VietJet AirCheapestHK$830AverageHK$1,374FlexibilityNo cancel feeOn-timeN/A
Search VietJet Air flights
HK ExpressCheapestHK$845AverageHK$1,295FlexibilityNo cancel feeOn-time90%
Search HK Express flights
Greater Bay AirlinesCheapestHK$904AverageHK$1,481FlexibilityNo cancel feeOn-timeN/A
Search Greater Bay Airlines flights
Hong Kong AirlinesCheapestHK$1,004AverageHK$1,569FlexibilityNo cancel feeOn-time65%
Search Hong Kong Airlines flights
FlexFlightCheapestHK$1,214AverageHK$2,178FlexibilityNo cancel feeOn-timeN/A
Search FlexFlight flights
Cathay PacificCheapestHK$1,377AverageHK$2,570FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Vietnam AirlinesCheapestHK$1,456AverageHK$1,790FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
United AirlinesCheapestHK$1,634AverageHK$1,997FlexibilityNo cancel feeOn-time69%
Search United 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 Vietnam?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Vietnam from Hong Kong today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from Hong Kong to Vietnam for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Vietnam from Hong Kong? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Hong Kong to Vietnam flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.