AirHint found the following cheapest return flights from Washington (IAD) to Porto (OPO) in February 2026 (see full year).
Return flights
| 03 Feb - 11 Feb | Lufthansa | ||
| 10 Feb - 17 Feb | Lufthansa | ||
| 16 Feb - 23 Feb | TAP | ||
| 27 Feb - 06 Mar | TAP | ||
| 25 Feb - 04 Mar | United | ||
| 22 Feb - 10 Mar | Delta | ||
| 11 Feb - 18 Feb | Delta | ||
| 26 Feb - 05 Mar | TAP | ||
| 28 Feb - 07 Mar | TAP |
Also check the deals for one-way flights from Washington to Porto in February.
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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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