Best time to go: what is the RIGHT price for a round-trip flight to Vientiane (from: Sydney)

The average price to go to Vientiane from Sydney airport is $ 717 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 586 (in march) and $ 985 (in january), which is a saving of $ 131 or a surplus of $ 268 (compared to the average price) depending on the period you leave.

The analysis of all prices reveals that the most frequent price is between $545 to $599 and it is generally more economical to leave on a monday and return on a thursday on a flight with 1 or more layovers.

Be careful, the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to Vientiane before booking your flight.

If you want to know when to book your flight at the best price, go straight to the second part of this page: When to buy your Sydney-Vientiane plane ticket.

How are these data calculated?

We have studied a sample of 36109 airfare prices from previous years for flights to Vientiane from Sydney and can thus establish precise and credible price variation trends based on different parameters. Of course, prices can vary from year to year, but the seasonal aspect of this data (recurrence of school holidays, events... from year to year) makes these statistics quite reliable.

Average price depending on the departure month

Data analysis:

By leaving in march, the price of the plane ticket will statistically be the cheapest ($ 586, saving $ 131 compared to the average price over the year which is $ 717). Conversely, january will be the most expensive ($ 985).

Flight Sydney-Vientiane: when is the best time to go for the best price?

Month Good price* Average price Our opinion
January$ 818 $ 985 very high price
February$ 571 $ 690 good price
March$ 479 $ 586 very good price
April$ 601 $ 732 fair price
May$ 490 $ 613 good price
June$ 531 $ 662 good price
July$ 611 $ 760 fair price
August$ 500 $ 618 good price
September$ 534 $ 686 good price
October$ 531 $ 676 good price
November$ 534 $ 661 good price
December$ 762 $ 925 high price

*great price to buy your plane ticket: if you see this price or cheaper during your flight search, go for it and buy it!

Price breakdown to travel from Sydney to Vientiane

Data analysis:

The prices for flights from Sydney to Vientiane range from $381 to $1252. 4% of tickets were purchased at the minimum price (from $381 to $436), 1% at the maximum price (from $1198 to $1252). The majority of plane tickets were purchased in the range of $545 to $599 (13% of tickets).

Cheapest airlines for the Sydney->Vientiane flight

There are 10 companies that serve Sydney from Vientiane airport: Scoot, Airasia X, Thai Airasia X, Jetstar, China Southern, China Eastern, Vietnam Airlines, Vietjet Air, Singapore Airlines and Thai Airways.

Data analysis:

Of the 36109 flights analyzed in previous years, Scoot was the airline that offered the best fare most often in the flight ticket search results (23% of the time) on the Sydney->Vientiane route.

Which day of the week to leave?

Data analysis:

Statistically, Sydney-Vientiane flights departing on a monday are cheaper than on other days of the week. By choosing a monday as your departure date, you can save an average of $52. On the other hand, departing on a tuesday may cost you an additional $80.

Which day of the week to come back?

Data analysis:

Statistically, return flights from Vientiane to Sydney departing on a thursday are cheaper than on other days of the week. By choosing a thursday for your return date, you will save an average of $45. Conversely, departing from Vientiane on a wednesday may cost you an additional $76.


Top prices Sydney-Vientiane

Round tripDatesPrice
Sydney → Vientiane01-05 to 08-05-2025$ 402 
Sydney → Vientiane05-05 to 24-05-2025$ 309 
Sydney → Vientiane08-05 to 15-05-2025$ 313 
Sydney → Vientiane10-05 to 24-05-2025$ 361 
Sydney → Vientiane02-06 to 23-06-2025$ 372 
Sydney → Vientiane07-06 to 14-06-2025$ 310 
Sydney → Vientiane09-06 to 16-06-2025$ 405 
Sydney → Vientiane04-08 to 17-08-2025$ 389 
Sydney → Vientiane09-08 to 14-08-2025$ 392 
Sydney → Vientiane19-09 to 25-09-2025$ 400 


When to book your flight Sydney - Vientiane to get the cheapest price?

Statistically, you will make the biggest savings by buying your plane ticket between 4 to 5 months in advance. However, you may end up paying a high price if you book between 11 to 12 months in advance.

Did you know: the price of plane tickets not only varies depending on how far in advance you book, but also on the day of the week you book! So, to maximize your chances of getting the best price for a Sydney-Vientiane flight, it is recommended to book your ticket on a sunday.

How far in advance should I buy my flight?

Data analysis:

To get the cheapest flight ticket from Sydney to Vientiane, it is recommended to buy it 4 to 5 months before departure (it is then on average 681 $, which is a saving of 36 $ compared to the overall average price). On the other hand, if you buy your ticket 11 to 12 months in advance, you will pay the full price (139 $ more than the average price).

Depending on the departure month

The best time to buy your Sydney to Vientiane flight ticket may vary depending on your departure month. Therefore, we offer you statistics on when to book your flight month by month.

Departure on... How far in advance should I book?
January

Best time: 5 to 6 months before departure (average price: 838 $)

Other interesting period(s): 3 to 4 months ($ 940), 4 to 5 months ($ 859), 6 to 7 months ($ 840), 7 to 8 months ($ 975), 10 to 11 months ($ 927)

February

Best time: 4 to 5 months before departure (average price: 589 $)

Other interesting period(s): 1 to 2 months ($ 685), 2 to 3 months ($ 632), 3 to 4 months ($ 610), 5 to 6 months ($ 628), 6 to 7 months ($ 643), 7 to 8 months ($ 642)

March

Best time: 4 to 5 months before departure (average price: 530 $)

Other interesting period(s): 1 to 2 months ($ 567), 3 to 4 months ($ 553), 5 to 6 months ($ 556)

April

Best time: 8 to 9 months before departure (average price: 682 $)

Other interesting period(s): 1 to 2 months ($ 703), 2 to 3 months ($ 711), 3 to 4 months ($ 721), 4 to 5 months ($ 732), 9 to 10 months ($ 708)

May

Best time: 2 to 3 months before departure (average price: 568 $)

Other interesting period(s): 1 to 2 months ($ 576), 3 to 4 months ($ 576), 5 to 6 months ($ 592), 7 to 8 months ($ 577), 8 to 9 months ($ 582)

June

Best time: 4 to 5 months before departure (average price: 580 $)

Other interesting period(s): 1 to 2 months ($ 628), 2 to 3 months ($ 593), 3 to 4 months ($ 599), 5 to 6 months ($ 602), 6 to 7 months ($ 639), 8 to 9 months ($ 629)

July

Best time: 4 to 5 months before departure (average price: 631 $)

Other interesting period(s): 1 to 2 months ($ 702), 2 to 3 months ($ 686), 3 to 4 months ($ 698), 5 to 6 months ($ 755), 8 to 9 months ($ 743)

August

Best time: 3 to 4 months before departure (average price: 537 $)

Other interesting period(s): 1 to 2 months ($ 573), 2 to 3 months ($ 601), 4 to 5 months ($ 539), 5 to 6 months ($ 605), 6 to 7 months ($ 606), 7 to 8 months ($ 608), 8 to 9 months ($ 613)

September

Best time: 2 to 3 months before departure (average price: 571 $)

Other interesting period(s): 1 to 2 months ($ 635), 3 to 4 months ($ 620), 4 to 5 months ($ 584), 6 to 7 months ($ 586), 7 to 8 months ($ 648)

October

Best time: 3 to 4 months before departure (average price: 559 $)

Other interesting period(s): 1 to 2 months ($ 633), 2 to 3 months ($ 670), 4 to 5 months ($ 559), 5 to 6 months ($ 629), 7 to 8 months ($ 655)

November

Best time: 5 to 6 months before departure (average price: 531 $)

Other interesting period(s): 2 to 3 months ($ 608), 3 to 4 months ($ 549), 4 to 5 months ($ 553), 8 to 9 months ($ 608), 9 to 10 months ($ 629)

December

Best time: 6 to 7 months before departure (average price: 745 $)

Other interesting period(s): 3 to 4 months ($ 854), 4 to 5 months ($ 829), 5 to 6 months ($ 814), 7 to 8 months ($ 813), 9 to 10 months ($ 872), 10 to 11 months ($ 879)

What day of the week should I book my flight ticket?

Data analysis:

Statistically, sunday is the day when plane tickets for Sydney->Vientiane are the cheapest. So, by buying your plane ticket on a sunday, you will save $5. Conversely, by buying it on a monday, you may end up paying $7 more.



Sydney to Vientiane: flight price when booking today

Information: this data is not statistics but comes from real prices collected less than 7 days ago. Some months may not be available as we do not have enough data for them.

Month Current price
April 2025$ 965
$569 to $1779
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May 2025$ 605
$309 to $870
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June 2025$ 551
$310 to $802
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July 2025$ 706
$493 to $853
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August 2025$ 572
$389 to $841
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September 2025$ 692
$400 to $798
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October 2025$ 678
$413 to $962
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November 2025$ 574
$409 to $884
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December 2025$ 945
$572 to $1130
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January 2026$ 986
$641 to $1106
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February 2026$ 835
$568 to $1026
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Data analysis:

Compared to the average price, may, june, july, august and november are cheaper to travel to Vientiane. So it may be interesting to book now to leave during these months!



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