Trainline, Omio and Renfe compared for high-speed train tickets in Spain and Europe — price comparison, booking fees and digital tickets.
Booking a Spanish AVE ticket at the right price can feel like a lottery: fares swing by the week, two new operators now compete with Renfe, and the same journey shows different prices depending on where you look. Aggregators compare operators in one search but may charge for the convenience; the official app avoids booking fees and adds its loyalty scheme, but only sells its own trains. Choosing is mostly about whether you already know the operator and how many borders you cross. The 3 apps in this guide are the ones that cover that decision for travel in Spain and across Europe in 2026.
Trainline compares Renfe, Ouigo, iryo and Avlo in one search across more than 270 operators, the best starting point for the cheapest fare.
The app brings Renfe, AVE, Avlo, Ouigo, iryo and hundreds of other European train and coach operators into a single results list, comparing prices on the same route instead of opening each operator's site. Tickets live as QR codes in the app and platform alerts keep trips on track. It is the most practical tool for comparing Spain's high-speed rivals or chaining several countries. The costs are small but real: a service fee may be added, the final price can differ from the official site, and the flood of options is confusing on a first search.
Renfe's official app sells AVE, Larga Distancia, Media Distancia and Avant tickets with no booking fee and runs the +Renfe points scheme.
Buying direct is the main reason to use it: no intermediary booking fee on Renfe trains, timetables, ticket changes and the +Renfe loyalty programme in one place, covering AVE, Larga Distancia, Media Distancia and Avant services. Anyone who regularly makes long-distance rail journeys inside Spain will know exactly where they stand. The limits are scope and polish: Ouigo and iryo never appear, the interface feels older than Trainline's, and the purchase flow can buckle on peak dates when demand is high. Use it when the operator is settled; use an aggregator to choose the operator.
Omio compares trains, coaches, flights and ferries together across Europe and the US, handy when you are unsure which mode is fastest.
A single search lays out every mode from hundreds of operators, Renfe included, with price and journey time side by side, so the choice between a train, a flight and a coach becomes a concrete comparison instead of a hunch. It shines for cross-border trips and for travellers flexible about how they get there. The trade-offs mirror Trainline's: a service fee can be added, it is not always the lowest price an operator offers directly, and each operator's own site carries more detail about its fare conditions. Think of it as the trip-level planner rather than the booking desk.
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Questions & answers
Trainline or Renfe direct — which is cheaper?
If you are travelling with Renfe, its official app is usually cheaper because no service fee is added. Trainline earns its keep when you want to compare Renfe with Ouigo or iryo on the same screen, or when a journey crosses several European countries with different operators, even if a small fee then applies.
Where do I find the cheapest high-speed fares in Spain?
Start with Trainline: it shows Renfe, Ouigo and iryo prices for the same route together, which makes comparison trivial. Fares move heavily with booking time and departure hour, so buying weeks ahead and staying flexible about when you leave does more for the price than switching between apps on the day.
Can one app cover train tickets across Europe?
Trainline and Omio both cover hundreds of train and coach operators well beyond Spain, so either works for an Interrail-style trip or a journey through several countries. Renfe's app is the opposite: it only manages Renfe trains inside Spain, which is ideal for direct domestic bookings but useless for cross-border planning.
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