Cheapest return flights from Washington to Sydney in January from 736€

AirHint found the following cheapest return flights from Washington (IAD) to Sydney (SYD) in January 2026 (see full year).

Return flights

16 Jan - 25 Jan Delta
31 Jan - 05 Feb Delta
30 Jan - 06 Feb Delta
03 Jan - 17 Jan Frontier Airlines
05 Jan - 19 Jan Frontier Airlines
09 Jan - 19 Jan United
14 Jan - 22 Jan Emirates
01 Jan - 19 Jan Delta

Also check the deals for one-way flights from Washington to Sydney in January.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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