Currently, the most affordable month to book a Cathay Pacific flight from Sydney to Ulaanbaatar in November, with an average price of $941. Conversely, traveling with Cathay Pacific from Sydney to Ulaanbaatar in December will be the most expensive, with an average cost of $1,305. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
January
$1,674
February
$1,488
March
$1,465
April
$1,557
May
$1,492
June
$1,526
July
$1,521
August
$1,623
September
$1,667
October
$1,538
November
$1,427
December
$1,979
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