Cheap flights from Bilbao to Porto from $26 BIO → OPO

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $37 to $137.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 4-night return fares leaving within 3 days of 24 Nov to compare.

Every date we hold

21 fares on 10 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $50.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $23 to $38.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

Yes. Among one-way fares leaving within 3 days of 21 Nov, 22 Nov costs $23: $3 less than the cheapest found recently.

Volotea · Bilbao Airport (BIO) → Porto Airport (OPO) · nonstop · found 6 days ago

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Every date we hold

6 fares on 6 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $23.

Return

Fares 30 to 59 days before departure were typically 22% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

The cheapest fares were 7 to 13 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Bilbao to Porto?

The cheapest return found recently is $75 with Vueling, 24 Nov to 28 Nov, found 2 days ago. The cheapest return we hold, of any age, is $50 with Volotea, 10 Dec to 12 Dec, found 3 days ago. The cheapest return fare on each of 10 departure dates is usually $94 to $111.

How much is a one-way flight from Bilbao to Porto?

The cheapest one-way found recently is $26 with Vueling, 21 Nov, found 2 days ago. The cheapest one-way we hold, of any age, is $23 with Volotea, 22 Nov, found 6 days ago. The cheapest one-way fare on each of 6 departure dates is usually $27 to $38.

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

December 2026 is the cheapest month for a return, from $50, 10 Dec to 12 Dec, found 3 days ago. November 2026 is the cheapest month for a one-way, from $23, 22 Nov, found 6 days ago.

How far ahead should I book a flight from Bilbao to Porto?

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 22% lower than 0 to 6 days before departure. One-way fares were cheapest 7 to 13 days before departure.

Is there a direct flight from Bilbao to Porto?

Yes, the cheapest nonstop return found recently is $75 with Vueling, 24 Nov to 28 Nov, found 2 days ago. The cheapest nonstop one-way found recently is $26 with Vueling, 21 Nov, found 2 days ago.

How long is the flight from Bilbao to Porto?

The cheapest nonstop one-way found recently, with Vueling on 21 Nov, takes 1 h 20 min from Bilbao Airport (BIO) to Porto Airport (OPO).

Which airlines have the cheapest flights from Bilbao to Porto?

Between 24 Nov and 25 Aug 2027, Vueling has the cheapest return on 7 of the 10 departure dates we hold, Volotea on 2 and Portugalia Airlines on 1. Between 21 Nov and 5 Dec, Vueling has the cheapest one-way on 4 of the 6 departure dates we hold, and Volotea on 2.