AirHint found the following cheapest return flights from Dallas (DAL) to Lisbon (LIS) in March 2026 (see full year).
Return flights
| 09 Mar - 13 Mar | Delta | ||
| 04 Mar - 10 Mar | Delta | ||
| 03 Mar - 11 Mar | KLM | ||
| 22 Mar - 28 Mar | Delta | ||
| 01 Mar - 09 Mar | KLM | ||
| 05 Mar - 28 Mar | KLM | ||
| 20 Mar - 28 Mar | Delta | ||
| 15 Mar - 04 Apr | Air France |
Also check the deals for one-way flights from Dallas to Lisbon in March.
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