Cheap Flights Bilbao to Madrid

Flights from Bilbao to Madrid start from around $35 one way and cover the 320 km between the Basque Country and the capital in about an hour. Iberia and low-cost carriers share the route, so competition keeps fares reasonable — but the train is a real rival here, which makes timing your booking even more important. Search and book your flight to see live fares from Bilbao to Barajas across all airlines.

Below: who flies the route, how to handle both airports, and the tricks that keep the price near the floor.

How to find cheap flights from Bilbao to Madrid

Book 2–4 weeks ahead. Domestic Spanish routes price up sharply inside 10 days of departure.
Target midweek mornings. Monday morning and Friday evening are business-heavy; Tuesday–Thursday after the first departure are cheapest.
Compare against the train before buying. The high-speed train takes about 4 hours city-centre to city-centre. Flights win on time; the train sometimes wins on price — check both and pick based on your schedule.
Search one-ways on separate airlines. A flexible Bilbao–Madrid search often shows that mixing carriers beats any single round trip.

Airports: Bilbao and Madrid

Bilbao Airport (BIO), designed by Santiago Calatrava, sits 12 minutes from the city centre on the A3247 Bizkaibus (about €3). It is compact: security is usually under 10 minutes and 75–90 minutes before departure is plenty. Morning business flights to Madrid are the busiest window.

Madrid Barajas (MAD): flights from Bilbao mostly use Terminal 4 (Iberia group) or Terminal 2. From T4, the Cercanías C-1 train reaches Nuevos Ministerios in 12 minutes; Metro Line 8 serves all terminals. Budget 30–45 minutes from landing to central Madrid. If you connect onward from Barajas, allow at least 90 minutes between flights when changing terminals.

Airlines flying Bilbao to Madrid

Airline	Route type	Notes
Iberia	Direct, multiple daily	The route’s backbone; Terminal 4, full-service fares
Vueling	Direct	Frequent, often the cheapest of the Iberia group
Air Europa	Direct	Selected daily flights, Terminal 2
Ryanair	Limited/direct	Occasional low-fare capacity, worth comparing

Flight time is about 1 hour 5 minutes. Frequencies are high on weekdays, so a same-day or next-day flight search on TopTravelCentre can still return reasonable fares — though booking ahead always costs less.

Cheapest time to fly from Bilbao to Madrid

Cheapest months: January, February and November — from around $35 one way.
Comfortable and fair: March–May and October — pleasant in both cities with moderate fares.
Pricey: early July, Christmas week, Easter and any Monday/Friday around Spanish holidays.

The earliest departures (around 6:30–7:00) are business flights and priced accordingly; the second wave, mid-morning, is usually the bargain.

Tips to pay less

Cabin bag only. For a one-hour flight, checked baggage fees can double your total.
Watch Iberia/Vueling sales. Domestic promotions appear several times a year and drop BIO–MAD below the train price.
Price the full journey. Bilbao airport bus + flight + Barajas train is fast; the high-speed train from Abando station is door-to-door simpler. Choose on total cost and time, not the ticket alone.
Set an alert and buy on a dip. On this route, fares bounce week to week — a drop below $45 one way is a buy signal.
Avoid booking same-day unless urgent. Walk-up domestic fares in Spain are routinely 3–4x the advance price.

FAQ

How long is the flight from Bilbao to Madrid? About 1 hour 5 minutes direct.

Which airlines fly direct from Bilbao to Madrid? Iberia and Vueling fly multiple times daily; Air Europa and Ryanair operate selected flights.

What is the cheapest month to fly? January and February, with one-way fares from around $35.

How do I get from Madrid Barajas to the centre? Metro Line 8 or Cercanías C-1 train, roughly 12–15 minutes and about €5.

Is there anything to do near Bilbao airport? The airport is right next to the Loiu area, 12 km from central Bilbao and conveniently close to the A8 motorway if you are continuing to San Sebastián (about 70 minutes) or the Rioja wine region. The Bilbao Guggenheim, the Casco Viejo and the pintxo bars of the Siete Calles are an easy 15-minute bus or taxi ride from the terminal.

Is the train a better option than flying? The high-speed train takes about 4 hours centre-to-centre. Flying is faster overall; the train can be cheaper and simpler. Compare both before booking.

Search and book your Bilbao–Madrid flight and lock in the lowest fare before prices climb.