What is the cheapest month to fly from Porto to Boston?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Porto (OPO) to Boston (BOS), with fares starting from $437.

What is the lowest current fare from OPO to BOS?

The lowest currently-listed fare from Porto (OPO) to Boston (BOS) is $437 on 2026-08-02.

Direct flights from OPO to BOS cover approximately 5,049 km (3,137 miles), with an estimated flight time of 5h 56m. Operating airlines: TP.

Cheapest current fares: $437 in August 2026, 5,049 km direct flight in ~5h 56m.

Last updated May 25, 2026 · By Flightmaps Editorial

Lowest available fare per calendar month from Porto (OPO) to Boston (BOS). Refreshed daily.

What is the cheapest month to fly from Porto to Boston?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Porto (OPO) to Boston (BOS), with fares starting from $437.
What is the lowest current fare from OPO to BOS?

The lowest currently-listed fare from Porto (OPO) to Boston (BOS) is $437 on 2026-08-02.
How long is the flight from Porto to Boston?

Direct flights from OPO to BOS cover approximately 5,049 km (3,137 miles), with an estimated flight time of 5h 56m. Operating airlines: TP.

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