£175 Find Cheap Flights from Sydney to Hanoi – Compare and Save

Among airlines operating Sydney to Hanoi flights:

• Vietnam Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only Vietnam Airlines operates flights between Sydney and Hanoi.

Flights from Sydney to Hanoi usually depart from Sydney Kingsford Smith (SYD) and arrive at Hanoi Noibai (HAN).

Here are some options for this route, based on selected ticket types and cabin classes:

• Vietnam Airlines: a cabin bag and a checked bag in Economy class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Three cabin classes are available on flights from Sydney to Hanoi:

• Economy class
• Premium Economy Class
• Business Class

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £278 return via Shenzhen (SZX), compared with £563 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £15–£74 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Airbus A350-900 family is used most often on this route, operated mainly by Vietnam Airlines. Other aircraft seen on the route include Airbus A330 variants.

One-stop flights from Sydney to Hanoi most commonly connect through:

• Ho Chi Minh City (SGN) – 43% of one-stop connections
• Guangzhou Baiyun (CAN) – 25% of one-stop connections
• Singapore Changi (SIN) – 10% of one-stop connections
• Hong Kong Intl (HKG) – 8% of one-stop connections

Ho Chi Minh City (SGN) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 14% on the Sydney to Hanoi route. Tuesday is the cheapest departure day at £453 return on average, while Monday is the most expensive at £523, a difference of £70. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Sydney to Hanoi route, 19% of flights were delayed in the past 3 months, with delays averaging 1 hour 39 minutes.

Afternoon is the busiest departure period on Sydney to Hanoi flights, with 100% leaving in that window. Morning departures account for 0%, Evening flights for 0%, and Night flights for 0%.

Some of the most popular sights in Hanoi are Hanoi Old Quarter, Hoan Kiem Lake, and Ta Hien Street. These are among the most viewed places in Hanoi on KAYAK.

These are the earliest and latest flight times available from Sydney to Hanoi:

• Earliest: departs at 14:15 and lands at 00:07
• Latest: departs at 15:15 and lands at 01:07.

The flight takes about 9h 52m.

Last-minute fares on this route (booked within 2 weeks of departure) run 14% above the route average of £490. Book 26 weeks before departure for the lowest fares.

A direct flight from Sydney to Hanoi takes 9h 52m, covering 4,836 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £379 to £3,559. That means the highest observed fare was about 9x higher than the lowest one.

One-way fares from Sydney to Hanoi are currently lower than usual. Average one-way flight prices are about £199, which is 21% below the typical average for this route.

Vietnam Airlines is slightly above the route average for timely arrivals, while VietJet Air has a lower on-time arrival rate. On-time arrival rates on Sydney to Hanoi flights are:

• Vietnam Airlines: 85% on time
• VietJet Air: 80% on time
• China Southern: 57% on time

On average, flights on this route are punctual 81% of the time.

Afternoon flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Hong Kong Intl (HKG) gives the shortest average 1-stop total travel time of 14h 04m, compared to 14h 36m via Taipei City Taiwan Taoyuan Intl (TPE) and 14h 52m via Ho Chi Minh City (SGN).

Hanoi is 3 hours behind Sydney (Indochina Time vs Eastern Australia Time). Plan for the time shift when scheduling connections or first-day activities.

Return flights from Sydney to Hanoi range from £378 to £654, with an average of £490 over the past 12 months. Anything below £378 counts as a good deal.