Carry-On Only for Spain: Airlines, Airports, and Packing Light

Spain is ideal for carry-on only travel. The weather in most regions from April through October is hot and predictable, which means lightweight clothing dominates your packing list. The main Spanish airlines all allow a 10 kg carry-on, and the country's internal flight network is supplemented by an excellent high-speed rail network that handles the Madrid-Barcelona route faster than flying door-to-door.

Spanish Airline Carry-On Allowances

The three main Spanish carriers converge around 10 kg, making planning straightforward:

Vueling (based in Barcelona): 10 kg cabin bag, 55 × 35 × 25 cm. Vueling dominates routes out of Barcelona and operates a large domestic network. It enforces bag size at busy Barcelona and Madrid gates.

Iberia: 10 kg cabin bag, 56×40×25 cm. Iberia is Spain's flag carrier and includes this cabin allowance in Basic. It operates most routes through Madrid Barajas Terminal 4.

Air Europa: 10 kg cabin bag, 55 × 35 × 25 cm. Air Europa serves a mix of Spanish domestic routes and international destinations from Madrid.

On top of these, Ryanair and easyJet serve many of Spain's cheapest domestic and international routes. Ryanair's cabin bag rules apply exactly as described elsewhere on this site — priority boarding required for overhead access. EasyJet follows its standard policy with a large cabin bag add-on needed for overhead bins.

Madrid and Barcelona airports

Confirm the terminal and departure gate in your current flight information. Do not rely on a generic terminal assignment by airline. Allow for transfers, document checks and baggage drop according to your actual itinerary and airline deadlines. Check the airport’s current transport options before choosing a connection or city transfer; this guide does not guarantee queue or journey times.

Packing for Spanish Weather

Spain's packing requirements are among the simplest in Europe for summer travel:

• Lightweight clothing only: Breathable cotton and linen work best in the dry heat of Andalusia, Madrid, and the islands. Synthetic moisture-wicking fabrics are better for active days in Barcelona's hills or the Camino.
• Comfortable walking shoes: Barcelona in particular combines beach, Gothic Quarter cobblestones, and steep Gràcia neighbourhood streets. You will need shoes that handle varied terrain all day without causing blisters.
• Sunscreen (100 ml): Bring a 100 ml tube through security, then buy a larger bottle at a Spanish pharmacy on arrival. Factor 50 sunscreen is widely available and inexpensive at Mercadona supermarkets.
• Light cover-up: Spanish restaurants, museums, and especially churches enforce modest dress. A lightweight cardigan or linen shirt serves both the air conditioning (Spanish offices and restaurants are often aggressively air-conditioned) and dress code requirements.

Island Hopping: What to Know

The Balearic Islands (Mallorca, Menorca, Ibiza) and Canary Islands (Tenerife, Lanzarote, Gran Canaria, Fuerteventura) are popular Spanish domestic destinations served by frequent budget flights. A few considerations specific to island routes:

Aircraft size varies: While major routes from Madrid and Barcelona use standard Airbus A320-family aircraft, some routes from smaller Spanish cities use turboprops or smaller jets. Overhead bin space is limited on these aircraft and gate-checking is common even when bags comply with size limits. If island-hopping is central to your itinerary, keep your bag on the smaller side of the allowed dimensions.

Vueling is often cheapest for Balearics: Vueling dominates Mallorca routes from Barcelona. Book in advance for summer routes, which are among the most popular in Europe.

Spain by Rail: The AVE Alternative

Spain's Alta Velocidad Española (AVE) high-speed rail network connects Madrid to Barcelona in around 2.5 hours city-centre to city-centre — competitive with flying door-to-door when you include airport time. The Renfe app handles tickets. Before choosing rail, check the train operator’s baggage size, weight, storage and acceptance conditions for the service you book.

The Madrid-Seville and Madrid-Valencia AVE routes are similarly convenient. For trips that keep you in mainland Spain, the rail network can replace several short-haul flights entirely.