I don't have the knowledge to comment on the accounting practices of Amtrak, but let's accept your statement as true. A few points of commentary are necessary:
- In 2019, Amtrak posted a loss ($474 million) for its long distance routes with 4.5 million passengers. This loss is essentially government funding. That comes out to funding of about $104 per passenger.
- Finding reliable data on subsidies to airlines is difficult, but there are quite a few:
- Many commercial pilots come from the military, cutting training costs for commercial airlines.
- Airlines don't build their own airports. For example, the $4 billion cost of LaGuardia's rebuild is funded 50% by taxpayers. And yes, Amtrak does use some municipality-owned stations, but the costs are obviously much less.
- Every existing major US airline has gone through bankruptcy, in which they have shed costs like pensions onto the taxpayers. United - $7 billion in pension debt transferred to taxpayers. American - $18.5 billion. Just to name a few.
- Critical infrastructure jobs are staffed through taxpayer funding, such as air traffic control, runway maintenance and snow removal, airport fire departments, TSA, police, etc.
- Most Amtrak stations are centrally located. Yes, people have to travel to them, but airports by definition are in far-flung areas from city centers. All of the infrastructure to get people back and forth (interstates, trains, parking shuttles, etc.) are taxpayer-funded.
- Then there's the pandemic, in which US airlines received about $79 billion in total. Based on 2019 passenger data, this comes out to about an $84 subsidy per passenger in a normal pre-pandemic year.
- We should also be clear what exactly taxpayers are funding with these bailouts. For example, from 2014-19, United Airlines spent more than $8.5 billion on stock buybacks. In my opinion, stock buybacks have no discernible benefit to society outside of enriching the largest shareholders - i.e. United's board of directors. When United declared it needed billions upon billions of dollars to survive the pandemic, were taxpayers funding United's operations, or its ability to generate shareholder profit? The point here is that while Amtrak also received a bailout, its bailout was at least earmarked for actual operational expenses - no matter how much management decisions may have botched it up.
One of Amtrak's challenges is that its long distance trains compete with flying in terms of price. As many an American has noted, "Why would I spend more for Amtrak when it takes me 20 hours as opposed to two hours for less money on a plane?" Well, perhaps the answer is that we have hidden the true cost of flying.
For me, I am utilizing long distance trains as much as I can because of the environmental benefits as opposed to flying, given the challenges we face with climate change. I believe a functional government should be encouraging this behavior. In this light, a subsidy for long distance train travel actually makes a lot of sense! For my twice-annual trips CHI-ROC, about 600 miles, this is right in the sweet spot of where planes are poor performers in terms of emissions, and trains can be much more successful - particularly with Amtrak's Tier IV locomotives coming on line.