Cheap flights

Cheap flights from Portugal to Bilbao

Track the cheapest Portugal–Bilbao fares — currently from €37.

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Fares shown in EUR, observed from live searches.

Here's everything you need to book a cheap flight from Portugal to Bilbao: the cheapest fares we've tracked, how prices change month to month, and a free alert that watches the route for you.

Portugal to Bilbao flight prices by month

The cheapest month to fly Portugal to Bilbao is Sep 2026, with fares from €37. Use the table below to find the cheapest time to travel.

MonthCheapest fare
Jul 2026€56
Aug 2026€72
Sep 2026Cheapest€37
Oct 2026€38
Nov 2026€39
Dec 2026€40
Jan 2027€42
Feb 2027€42
Mar 2027€48

Popular destinations from Portugal

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Frequently asked questions

How much is a flight from Portugal to Bilbao?

The cheapest Portugal–Bilbao fare we've tracked recently is €37 one-way. The lowest prices usually appear in Sep 2026.

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

Sep 2026 is currently the cheapest month to fly from Portugal to Bilbao, with fares from €37. See the month-by-month table above for the full year.

How far in advance should I book Portugal to Bilbao?

For Portugal–Bilbao, booking a few weeks to a few months ahead usually gives the best price. Flexible dates and mid-week departures help you save even more.

Can I set a price alert for Portugal to Bilbao?

Yes — Flyozo watches the Portugal–Bilbao route for free and emails you the moment the fare drops.

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Prices on this page are observed from live flight searches (2,204 recent fares), not estimates. Last updated Jul 30, 2026. Actual prices change constantly — always confirm on the booking site.