TMS to OPO, São Tome International Airport to Francisco Sa Carneiro International Airport Cheap Flights

Based on HopeGoo data, TAP Air Portugal offers one-way fares as low as US$382 on Cheapest nonstop routes (e.g. TMS to OPO on Sun, Mar 22), while TAP Air Portugal offers Cheapest nonstop round-trips from US$618 departing on Fri, May 1 and returning on Fri, May 8.

By analyzing data from all airlines on the HopeGoo flight calendar, it looks like the best time to book a flight from Sao Tome Island to Porto is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

To find best deals on flights from Sao Tome Island to Porto, you can use various tools on HopeGoo: · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Mar 22, with one-way flights priced at just US$382. · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is TAP Air Portugal. · Set up price alerts to easily monitor ticket prices without having to check every day. · Check HopeGoo flight deals and promo codes frequently. · Avoid peak season unless you book very early. It seems the peak season for Porto travel is around January. · Get exclusive promo codes for HopeGoo app users.

The cheapest months to fly from Sao Tome Island to Porto is October, when demand for travel is lower.

After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Sao Tome Island to Porto on March 7, 2026 with TAP Air Portugal, with prices starting at US$639.

The time difference between Porto and Sao Tome Island is 0h.

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