Begin by exporting your data from Airtable. Navigate to the Airtable base that contains the data you wish to export. Use the built-in export feature to download the data in CSV format. Go to the view that you want to export, click on the "Download CSV" option from the view menu, and save the file to your local machine.

Before importing the CSV file into ClickHouse, ensure that the data is formatted correctly. Review the CSV file to check for any inconsistencies such as missing headers or incorrect data types. Make necessary adjustments to ensure compatibility with ClickHouse's schema requirements.

If you haven't already, install the ClickHouse client on your local machine. You can download it from the official ClickHouse website. After installation, configure the client by setting up a connection to your ClickHouse server using your server's IP address, username, and password.

Log into the ClickHouse client and create a table that matches the structure of your Airtable data. Use the SQL `CREATE TABLE` command to define the table schema, ensuring that the data types align with those in the CSV file. For example:
```sql
CREATE TABLE airtable_data (
id UInt32,
name String,
age UInt8,
email String
) ENGINE = MergeTree()
ORDER BY id;
```

Use the `clickhouse-client` to import the CSV file into the ClickHouse table. Execute the following command in your terminal, replacing `filename.csv` with your CSV file and `airtable_data` with your ClickHouse table name:
```bash
clickhouse-client --query="INSERT INTO airtable_data FORMAT CSV" < filename.csv
```
This command reads the CSV file and inserts the data into the specified ClickHouse table.

After the import process is complete, verify that the data has been correctly transferred to ClickHouse. Run a `SELECT` query to inspect the data:
```sql
SELECT * FROM airtable_data LIMIT 10;
```
This will display the first 10 rows of your table, allowing you to confirm that the data is accurate and complete.

To streamline future data transfers, consider writing a script that automates the export and import process. Use a combination of tools like `cron` jobs for scheduling and shell scripts to execute the data export and import commands. This will save time and reduce the potential for manual errors in subsequent data transfers.

By following these steps, you can efficiently move data from Airtable to ClickHouse without relying on third-party connectors or integrations.