AirHint found the following cheapest one-way flights from Dallas-Fort Worth (DFW) to Lisbon (LIS) in May 2026 (see full year).
One-Way flights
| 18 May | British Airways | ||
| 07 May | Iberia | ||
| 08 May | Iberia | ||
| 12 May | Iberia | ||
| 25 May | Iberia | ||
| 16 May | Frontier Airlines | ||
| 17 May | Aer Lingus | ||
| 23 May | Spirit Airlines | ||
| 01 May | Frontier Airlines | ||
| 22 May | Spirit Airlines |
Also check the deals for return flights from Dallas-Fort Worth to Lisbon in May.
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