Find flights
When to book
Airlines
FAQs

Cheap flights from Sydney to Vientiane from $309

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — VTE
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Vientiane Wattay are usually found in August or June, booked 80 days in advance, depart on a Friday or Monday and return on a Monday

Cheap flight deals from Sydney to Vientiane

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Vientiane (VTE). 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 17 September 2025.

Round-trip from

$608

One-way from

$309

Popular in

December

Cheapest in

August

Average price

$998
VietJet Air
  • VietJet Air
  • 10/10-18/10
  • 2 total stops
  • 60h 10m total
  • Sydney to Vientiane
Search Deals
5/11
  • 5/11
  • 1 total stop
  • 15h 00m total
  • Sydney to Vientiane
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($383 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($59 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Sydney to Vientiane

Cheapest flights from Sydney to Vientiane
Explore the most affordable flight options available from Sydney to Vientiane. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Fri 10/1010:15SYD - VTE
1 stop26h 35mMultiple Airlines
Sat 18/1018:45VTE - SYD
1 stop33h 35mMultiple Airlines
Deal found 15/9$608
Sun 26/1016:25SYD - VTE
1 stop29h 20mMultiple Airlines
Wed 5/1118:45VTE - SYD
1 stop33h 20mMultiple Airlines
Deal found 16/9$620
Sun 26/1016:25SYD - VTE
1 stop29h 20mMultiple Airlines
Tue 4/1111:35VTE - SYD
2 stops16h 30mMultiple Airlines
Deal found 16/9$625
Sat 25/1011:15SYD - VTE
1 stop34h 30mMultiple Airlines
Thu 6/1111:35VTE - SYD
2 stops16h 30mMultiple Airlines
Deal found 15/9$629
Mon 27/1011:15SYD - VTE
1 stop34h 30mMultiple Airlines
Thu 6/1111:35VTE - SYD
2 stops16h 30mMultiple Airlines
Deal found 15/9$634
Thu 30/1014:20SYD - VTE
1 stop25h 40mScoot
Thu 6/1112:35VTE - SYD
1 stop26h 15mScoot
Deal found 15/9$635
Mon 27/1011:15SYD - VTE
1 stop34h 30mMultiple Airlines
Fri 7/1112:35VTE - SYD
1 stop20h 30mMultiple Airlines
Deal found 16/9$637
Fri 24/1011:15SYD - VTE
1 stop34h 30mMultiple Airlines
Fri 7/1112:35VTE - SYD
1 stop20h 30mMultiple Airlines
Deal found 16/9$638
Sun 26/1016:25SYD - VTE
1 stop29h 20mMultiple Airlines
Fri 7/1112:35VTE - SYD
1 stop26h 15mMultiple Airlines
Deal found 14/9$640
Sat 25/1013:50SYD - VTE
2 stops31h 55mMultiple Airlines
Fri 7/1111:35VTE - SYD
2 stops16h 30mMultiple Airlines
Deal found 14/9$646
Sat 25/1013:50SYD - VTE
1 stop26h 10mScoot
Fri 7/1112:35VTE - SYD
1 stop20h 30mScoot
Deal found 16/9$647

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Vientiane 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 647,157 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from Sydney to Vientiane that are best for you.

Fly from

Sydney

Fly to

Vientiane

Route

Depart

Return

Price

SydneyVientiane

SYD - VTE

SYDVTE

Sydney Kingsford Smith

Mon 27/10

11:15-17:45

1 stop34h 30m

Vientiane Wattay

Thu 6/11

11:35-08:05

2 stops16h 30m

$634

SydneyVientiane

SYD - VTE

SYDVTE

Sydney Kingsford Smith

Thu 30/10

14:20-12:00

1 stop25h 40m

Vientiane Wattay

Thu 6/11

12:35-18:50

1 stop26h 15m

$635

SydneyVientiane

SYD - VTE

SYDVTE

Sydney Kingsford Smith

Sun 26/10

20:05-17:45

2 stops25h 40m

Vientiane Wattay

Wed 5/11

18:45-08:05

1 stop33h 20m

$641

SydneyVientiane

SYD - VTE

SYDVTE

Sydney Kingsford Smith

Sat 25/10

13:50-12:00

1 stop26h 10m

Vientiane Wattay

Fri 7/11

12:35-13:05

1 stop20h 30m

$647

SydneyVientiane

SYD - VTE

SYDVTE

Sydney Kingsford Smith

Sat 25/10

11:15-17:45

1 stop34h 30m

Vientiane Wattay

Fri 7/11

12:35-13:05

1 stop20h 30m

$650

SydneyVientiane

SYD - VTE

SYDVTE

Sydney Kingsford Smith

Sun 26/10

16:25-17:45

1 stop29h 20m

Vientiane Wattay

Thu 6/11

11:35-08:05

2 stops16h 30m

$653

SydneyVientiane

SYD - VTE

SYDVTE

Sydney Kingsford Smith

Mon 27/10

20:05-17:45

2 stops25h 40m

Vientiane Wattay

Tue 4/11

11:35-08:05

2 stops16h 30m

$658

SydneyVientiane

SYD - VTE

SYDVTE

Sydney Kingsford Smith

Fri 24/10

21:25-17:45

2 stops24h 20m

Vientiane Wattay

Fri 7/11

11:35-08:05

2 stops16h 30m

$662

SydneyVientiane

SYD - VTE

SYDVTE

Sydney Kingsford Smith

Sat 1/11

11:15-17:45

1 stop34h 30m

Vientiane Wattay

Sat 8/11

18:45-08:05

1 stop33h 20m

$676

SydneyVientiane

SYD - VTE

SYDVTE

Sydney Kingsford Smith

Thu 30/10

16:25-17:45

1 stop29h 20m

Vientiane Wattay

Thu 6/11

11:35-08:05

2 stops16h 30m

$686

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 16 results
1
2

Best time to book a flight from Sydney to Vientiane

Have a flexible travel schedule? Discover the best time to fly to Vientiane from Sydney 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 Sydney to Vientiane

How far ahead should I book a flight from Sydney to Vientiane?

Use this chart to determine the optimal time to book a return flight from Sydney to Vientiane. Price data was last updated on 12 September 2025.

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Vientiane. 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 Sydney to Vientiane?

Currently, August is the cheapest month in which you can book a flight from Sydney to Vientiane (average of $544). Flying from Sydney to Vientiane in December is currently the most expensive (average of $1,094). 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 SYD to VTE?

Find hourly flight availability from Sydney to Vientiane. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 September 2025.

A simple way to save on the total cost of your ticket is to fly from Sydney to Vientiane in the evening. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight in the morning.

How much does it cost for a return flight from Sydney to Vientiane?

Reviews of airlines servicing Vientiane

Get insights into the airlines that provide service to Vientiane. 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 Vientiane. Reviews last updated 17 September 2025.
Check out reviews from past customers who have flown with Singapore Airlines, Thai Airways, andVietnam Airlines from Sydney to Vientiane to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Singapore Airlines
8.1
Very Good
1,365 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Thai Airways
7.8
Good
350 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Vietnam Airlines
7.6
Good
201 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
China Southern
7.5
Good
110 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Scoot
6.7
Okay
308 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Related info for your journey

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

  • How long is the flight from Sydney to Vientiane?

    A quick flight from Sydney to Vientiane can take about 25h 40m. Scoot provides one of the quickest options available for as low as $635. Sydney and Vientiane are separated by a distance of 7730 km.

  • What are the cheapest airlines flying from Sydney to Vientiane round-trip?

    Flying on Scoot is currently your cheapest option to Vientiane, with prices starting at $509. Additional round-trip tickets that might be worth considering are offered by Vietnam Airlines and China Southern, with the lowest prices starting at $770 and $780, respectively. Scoot is priced at 57% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Sydney to Vientiane that include hotel bookings?

    Yes. In addition to deals on Sydney to Vientiane flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Vientiane?

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

  • Can I find deals for business class flights from Sydney to Vientiane?

    Yes. Cheapflights offers flight deals from Sydney to Vientiane 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 Sydney to Vientiane?

    Currently, August is the cheapest month in which you can book a flight from Sydney to Vientiane (average of $544). Flying from Sydney to Vientiane in December is currently the most expensive (average of $1,094). 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.

Fly from Sydney to Vientiane on these airlines

Choose from the following airlines for your flight from Sydney to Vientiane. Flights are based on user searches made on Cheapflights and were last updated on 17 September 2025.
Thai Airways flights from Sydney Kingsford Smith to Vientiane Wattay
Scoot flights from Sydney Kingsford Smith to Vientiane Wattay
Vietnam Airlines flights from Sydney Kingsford Smith to Vientiane Wattay

Top 6 airlines flying from Sydney to Vientiane

Discover the top 6 airlines that operate flights from Sydney to Vientiane. 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 647,157 searches. Data last updated 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$509Average$705FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Vietnam AirlinesCheapest$770Average$990FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
China SouthernCheapest$780Average$1,188FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Singapore AirlinesCheapest$887Average$1,179FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
China EasternCheapest$900Average$1,145FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Thai AirwaysCheapest$1,190Average$1,393FlexibilityNo cancel feeOn-time77%
Search Thai Airways 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 Sydney to Vientiane?

Deals for Sydney to Vientiane flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Vientiane?

Millions of users choose and trust Cheapflights to book the best flight deals from Sydney to Vientiane 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 Sydney to Vientiane with no change fees?

Certainly. Search results for flights to Vientiane from Sydney shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Sydney to Vientiane become cheaper?

Yes! Start tracking prices for Sydney to Vientiane flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your 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.