AirHint found the following cheapest one-way flights from New York (LGA) to Porto (OPO) in March 2026 (see full year).
One-Way flights
| 25 Mar | Spirit Airlines | ||
| 10 Mar | Spirit Airlines | ||
| 03 Mar | Lufthansa | ||
| 24 Mar | Spirit Airlines | ||
| 08 Mar | Lufthansa | ||
| 31 Mar | Lufthansa | ||
| 29 Mar | Lufthansa | ||
| 07 Mar | Lufthansa | ||
| 15 Mar | British Airways |
Also check the deals for return flights from New York to Porto in March.
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