The Form41 data is loaded directly from the DOT/BTS raw data. We do not massage any of the financial data, so what we show is what the DOT makes available.
Also remember that Form41 data has only US based airlines, so all values are filed in US dollars.
In the reports, you will find the "carrier entity" pulldown menu.
From there you can filter your flights to see only Domestic or those flights which cross our borders.