How to Say “By the way” in Spanish Naturally

Introduction

Mastering conversational Spanish goes far beyond memorizing vocabulary lists and grammar rules. One of the most important skills is learning how to transition naturally between topics, just like native speakers do. If you have ever tried to change the subject or add an afterthought in Spanish, you might have wondered how to express that casual by the way feeling that comes so naturally in English.

Understanding Por Cierto: The Classic Choice

When most Spanish learners first search for how to say by the way, they encounter por cierto. This phrase is the most direct translation and works beautifully in many contexts. The literal meaning breaks down to por (for, by) and cierto (certain, true), which together create the sense of something that is worth mentioning.

You can use por cierto at the beginning of a sentence to introduce a new topic or piece of information:
Por cierto, ¿has visto a María últimamente?
(By the way, have you seen María lately?)

This phrase feels comfortable in both formal and informal settings, making it a safe choice for learners at any level. Whether you are chatting with friends at a café or sending a professional email to a colleague, por cierto maintains the right tone without sounding too stiff or too casual.

A Propósito: Adding Intention to Your Transitions

Another excellent option is a propósito, which carries a slightly different nuance. While por cierto introduces something that just occurred to you, a propósito suggests you are bringing up something relevant to the current conversation. It translates more closely to speaking of which or on that note in English.

A propósito de las vacaciones, ¿ya compraste los boletos?
(Speaking of vacations, did you already buy the tickets?)

You will often hear a propósito used when someone wants to circle back to a related topic. It creates a smooth bridge between ideas and shows that your comment is connected to what was just discussed. Native speakers appreciate this phrase because it demonstrates that you are actively listening and making thoughtful connections in the conversation.

Ah, Y: The Ultra-Casual Connector

For truly natural, everyday Spanish, consider the simple but powerful ah, y. This combination literally means oh, and but functions exactly like a casual by the way in relaxed conversations. You will hear this constantly among friends, family members, and in informal settings.

Ah, y no olvides traer el libro mañana.
(Oh, and don’t forget to bring the book tomorrow.)

The beauty of ah, y lies in its simplicity and authenticity. It sounds completely natural and helps you avoid the overly formal tone that sometimes plagues language learners. When you want to add something you just remembered or tack on an extra thought, ah, y does the job perfectly without drawing attention to itself.

Ya Que Estamos: Perfect for Adding Afterthoughts

When you want to take advantage of the current moment or conversation to mention something related, try ya que estamos. This phrase translates to since we are at it or while we are on the subject, and it feels wonderfully natural in Spanish conversation.

Ya que estamos hablando de películas, ¿viste la nueva de Almodóvar?
(While we are on the subject of movies, did you see the new Almodóvar film?)

Spanish speakers use ya que estamos when they want to maximize the current context. If you are already discussing travel plans, it makes sense to mention the guidebook you found. If you are talking about restaurants, ya que estamos provides the perfect opening to recommend your favorite tapas bar.

Regional Variations and Cultural Context

Spanish varies significantly across different countries and regions, and transition phrases are no exception. In Mexico, you might hear por cierto used more frequently, while in Spain, a todo esto (by the way, incidentally) appears often in conversation.

Argentine Spanish speakers sometimes use che combined with other phrases to create natural transitions. In the Caribbean and parts of Latin America, you will encounter oye (listen, hey) at the beginning of sentences to grab attention before introducing new information.

Understanding these regional preferences helps you sound more natural and shows cultural awareness. When learning Spanish, pay attention to which phrases your teachers, conversation partners, or favorite Spanish-language media use most frequently. This observation will guide you toward the expressions that feel most authentic in your target dialect.

Combining Phrases for Natural Flow

Advanced learners can combine different transition phrases to create even more natural-sounding Spanish. Native speakers rarely stick to just one expression throughout a conversation. They mix and match based on context, formality, and personal style.

You might start with por cierto in a more formal exchange, then switch to ah, y as the conversation becomes more relaxed. Or you could use a propósito when making a clear connection to the previous topic, then follow up later with ya que estamos when adding related information.

This variety keeps your Spanish sounding fresh and authentic. It also prevents you from falling into the trap of overusing a single phrase, which can make your speech feel repetitive or mechanical.

Common Mistakes to Avoid

Many learners make the mistake of literally translating by the way as por el camino, which actually means along the way or on the road. This creates confusion and marks you immediately as a non-native speaker.

Another error involves placing these transition phrases awkwardly within sentences. In Spanish, por cierto and similar expressions typically appear at the beginning of a sentence or clause, not buried in the middle. Pay attention to placement when you hear native speakers use these phrases.

Some students also overuse formal transitions in casual settings. While por cierto works in most situations, constantly using it with close friends might sound unnaturally stiff. Match your phrase choice to the social context and relationship you have with your conversation partner.

Practicing These Phrases Effectively

The best way to internalize these expressions is through consistent practice in real conversations. Start by consciously choosing one phrase per week to focus on. Use it multiple times in your Spanish exchanges, whether in person, through language exchange apps, or during online lessons.

Listen carefully to Spanish podcasts, television shows, and movies, specifically noting when and how native speakers use these transition phrases. Create a note in your phone where you record examples you hear, including the context and tone. This active observation accelerates your learning and helps you develop an ear for natural usage.

Try writing short paragraphs or dialogue exchanges using different transition phrases. This written practice reinforces the patterns and helps you feel more confident when speaking. You can share these writings with language partners or tutors for feedback on naturalness and appropriateness.

Building Confidence in Conversation

Remember that using these phrases is not just about memorizing translations. It reflects your growing ability to think in Spanish and navigate conversations with the same ease you have in English. Each time you successfully use por cierto to change topics or ah, y to add an afterthought, you are building genuine fluency.

Do not worry about making mistakes. Native speakers understand that language learning is a process, and they appreciate your efforts to communicate naturally. Most Spanish speakers feel delighted when learners use conversational phrases correctly because it shows dedication to truly understanding the language rather than just translating word for word.

As you practice, you will notice yourself reaching for these phrases automatically, without consciously thinking about which one to use. That automaticity signals real progress and means you are developing the intuition that native speakers rely on every day.

Conclusion

Learning how to say by the way in Spanish opens up new dimensions in your conversations. Whether you choose por cierto for its versatility, a propósito for its connecting power, ah, y for its casual charm, or ya que estamos for timely additions, you now have the tools to transition between topics like a native speaker. Practice these phrases regularly, pay attention to context, and watch your Spanish conversations become more natural and engaging.