Cheap flights from Bilbao to Madrid from $35 BIO → MAD

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 $54 to $96.

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 18 Dec to compare.

Every date we hold

53 fares on 6 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $54.

Found recently, and the cheapest we hold

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

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

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

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 21 Nov to compare.

Every date we hold

8 fares on 8 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $35.

Return

Fares 30 to 59 days before departure were typically 27% 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

Timing didn't matter much here — prices were about the same in every range.

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 Madrid?

The cheapest return found recently is $85 with Air Europa, 18 Dec to 22 Dec, found 3 days ago. The cheapest return we hold, of any age, is $54 with Iberia, 17 Dec to 22 Dec, found 5 days ago. The cheapest return fare on each of 6 departure dates is usually $77 to $97.

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

The cheapest one-way found recently is $35 with Iberia, 21 Nov, found 2 days ago. The cheapest one-way fare on each of 8 departure dates is usually $37 to $42.

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

December 2026 is the cheapest month for a return, from $54, 17 Dec to 22 Dec, found 5 days ago. November 2026 is the cheapest month for a one-way, from $35, 21 Nov, found 2 days ago.

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

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 27% lower than 0 to 6 days before departure. One-way fares cost about the same whether the flight was days or months away.

Is there a direct flight from Bilbao to Madrid?

Yes, the cheapest nonstop return found recently is $85 with Air Europa, 18 Dec to 22 Dec, found 3 days ago. The cheapest nonstop one-way found recently is $35 with Iberia, 21 Nov, found 2 days ago.

How long is the flight from Bilbao to Madrid?

The cheapest nonstop one-way found recently, with Iberia on 21 Nov, takes 1 h 10 min from Bilbao Airport (BIO) to Adolfo Suarez Madrid-Barajas Airport (MAD).

Which airlines have the cheapest flights from Bilbao to Madrid?

Between 13 Nov and 25 Apr 2027, Air Europa has the cheapest return on 3 of the 6 departure dates we hold, Vueling on 2 and Iberia on 1. Between 21 Nov and 5 May 2027, Air Europa has the cheapest one-way on 4 of the 8 departure dates we hold, Vueling on 2 and Iberia on 1.