AirHint found the following cheapest return flights from Austin (AUS) to Lisbon (LIS) in March 2026 (see full year).

Return flights

03 Mar - 10 Mar	United
10 Mar - 17 Mar	United
17 Mar - 24 Mar	United
24 Mar - 31 Mar	United
04 Mar - 11 Mar	British Airways
16 Mar - 23 Mar	Finnair
18 Mar - 25 Mar	British Airways
02 Mar - 09 Mar	British Airways
23 Mar - 30 Mar	British Airways
04 Mar - 16 Mar	British Airways
25 Mar - 01 Apr	British Airways
31 Mar - 07 Apr	United
26 Mar - 02 Apr	Air Canada
30 Mar - 06 Apr	Air Canada
27 Mar - 03 Apr	British Airways
29 Mar - 05 Apr	Air Canada
28 Mar - 04 Apr	Air Canada

Also check the deals for one-way flights from Austin to Lisbon in March.

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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Cheapest return flights from Austin to Lisbon in March from $543

Return flights