A coastal landscape with numerous boats, lush greenery, and distinctive limestone karsts.

Cheap Flights to Cat Ba Island from HK$676

View HK$676 flight on Mon, 10 Aug 2026Opens in a new window

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Cheap round-trip flights to Cat Ba Island

Prices were available within the past 7 days and start at HK$676 for one-way flights and HK$1,215 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

HK Express
Mon, 10 Aug - Thu, 13 Aug
HKG
Hong Kong SAR
HAN
Hanoi
HK$1,215 Return, just found
HK$1,215
Return
just found
Select HK Express flight, departing Mon, 10 Aug from Hong Kong SAR to Hanoi, returning Thu, 13 Aug, priced at HK$1,215 just found
Jeju Air with Bag
Thu, 27 Aug - Thu, 3 Sept
ICN
Seoul
HAN
Hanoi
HK$1,689 Return, found 20 hours ago
HK$1,689
Return
found 20 hours ago
Select Jeju Air with Bag flight, departing Thu, 27 Aug from Seoul to Hanoi, returning Thu, 3 Sept, priced at HK$1,689 found 20 hours ago
Hahn Air Systems
Tue, 8 Sept - Thu, 17 Sept
ICN
Seoul
HAN
Hanoi
HK$1,740 Return, found 15 hours ago
HK$1,740
Return
found 15 hours ago
Select Hahn Air Systems flight, departing Tue, 8 Sept from Seoul to Hanoi, returning Thu, 17 Sept, priced at HK$1,740 found 15 hours ago
Vietnam Airlines
Thu, 27 Aug - Sun, 30 Aug
ICN
Seoul
HAN
Hanoi
HK$1,907 Return, found 6 days ago
HK$1,907
Return
found 6 days ago
Select Vietnam Airlines flight, departing Thu, 27 Aug from Seoul to Hanoi, returning Sun, 30 Aug, priced at HK$1,907 found 6 days ago
9G Rail Limited
Sun, 11 Oct - Mon, 26 Oct
HKG
Hong Kong SAR
HAN
Hanoi
HK$2,325 Return, found 3 hours ago
HK$2,325
Return
found 3 hours ago
Select 9G Rail Limited flight, departing Sun, 11 Oct from Hong Kong SAR to Hanoi, returning Mon, 26 Oct, priced at HK$2,325 found 3 hours ago

Frequently asked questions

How do I find cheap flights to Cat Ba Island that have flexible change policies?
By using our smart "No change fee" filter, that's how. Just enter your dates and other details, click "Search," then click the checkbox below the "Flexible change policies" subheading (look to the left of your screen). Expedia makes it a cinch to find affordable, flexible tickets to Cat Ba Island.
How can I find cheap tickets to Cat Ba Island?
A good strategy for walking away with cheap tickets is to be flexible with your dates. Begin with searching for your flight to Cat Ba Island, then click on the "flexible dates" link for a list of prices for nearby days. Another tip? Book ahead of time. For an idea of costs, HK$1,215 was the lowest price for a flight to Cat Ba Island in the last seven days.
How much is a flight to Cat Ba Island?
The price of a round-trip flight to Cat Ba Island in the last seven days varied between HK$1,215 and HK$2,325. If you were heading one way from Hong Kong SAR (HKG), you could have gotten a cheap seat from just HK$676.
When is the cheapest time to fly to Cat Ba Island?
Take off for Cat Ba Island earlier in the week and you'll usually be rewarded with lower-cost fares. Tuesday is typically the cheapest day to fly out, with Monday a close second. If you'd like to avoid the costliest flights, steer clear of Saturdays.
How much is a plane ticket to Cat Ba Island?
In the last seven days, plane tickets to Cat Ba Island cost between HK$1,215 and HK$2,325. Prices depend on the departure time, airline, seating class and how early you make your booking.
What months are the cheapest to book a flight to Cat Ba Island?
To grab a fabulous deal to Cat Ba Island, try to book during the month of February when ticket prices are at their lowest. When's the most expensive time? In the United States, it's the festive month of December.

Travel information

Destination airport
Noi Bai Intl.
Destination airport IATA code
HAN
Destination city name
Hanoi
Return price
HK$1,215

Trending flights to Cat Ba Island

Prices were available within the past 7 days and start at HK$676 for one-way flights and HK$1,215 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

HK Express
Mon, 10 Aug - Thu, 13 Aug
HKG
Hong Kong SAR
HAN
Hanoi
HK$1,215 Return, just found
HK$1,215
Return
just found
Select HK Express flight, departing Mon, 10 Aug from Hong Kong SAR to Hanoi, returning Thu, 13 Aug, priced at HK$1,215 just found
*Available to Expedia members.