AirHint found the following cheapest return flights from Dallas (DAL) to Lisbon (LIS) in July 2026 (see full year).

Return flights

14 Jul - 21 Jul	Air France
14 Jul - 22 Jul	Delta
20 Jul - 27 Jul	Virgin Atlantic
20 Jul - 28 Jul	Virgin Atlantic
19 Jul - 26 Jul	Delta
19 Jul - 27 Jul	Delta
18 Jul - 25 Jul	Delta
18 Jul - 26 Jul	Delta
15 Jul - 22 Jul	Delta
15 Jul - 23 Jul	Delta

Also check the deals for one-way flights from Dallas to Lisbon in July.

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 Dallas to Lisbon in July from 748€

Return flights