Cheap Flights from MKE

Lisbon (LIS)

2026-05-04–2026-05-10 • Delta • $716 — Save $592 (~37%) Book

2026-05-07–2026-05-13 • Delta • $796 — Save $480 (~30%) Book

2026-05-18–2026-05-24 • Air France, Delta • $939 — Save $272 (~17%) Book