Cheapest return flights from Seattle to Sydney in March from 745€

Best time to book flights for Seattle (SEA) to Sydney (SYD) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Sydney (SYD) in March 2025 (see full year).

Return flights

12 Mar - 18 Mar Air Canada
19 Mar - 23 Mar United
06 Mar - 10 Mar United
15 Mar - 23 Mar United
08 Mar - 15 Mar Delta
10 Mar - 25 Mar Delta
15 Mar - 24 Mar Delta
15 Mar - 29 Mar United
23 Mar - 29 Mar United
31 Mar - 03 Apr Delta
31 Mar - 10 Apr Hawaiian Airlines
18 Mar - 20 Mar Frontier Airlines
12 Mar - 06 Apr Delta

Also check the deals for one-way flights from Seattle to Sydney in March.

Skyscanner

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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