Amtrak Guest Rewards - Using High Fare Tickets on Keystones in the NEC?

All main stem Northeast Corridor trains are now reserved. And conductors often announce that tickets must read valid for that particular train and date. For good reason: fares may be considerably higher on certain trains.

But AFAIK, fares on Keystone service between Philadelphia and New York are always priced in the lowest bucket, perhaps because of support from the State of Pennsylvania, or just because these are bare-bones services.

And in some cases, you may want to ditch your high-priced NE Regional or Acela service and use the ticket on a Keystone, especially if your reserved train is late or it's a short segment of a multi-city itinerary. You're not seeking a refund, but you do want the conductor to lift your ticket and turn it in.

Can anyone speak from actual experience that Keystone conductors will honor same day tickets from higher-priced trains?

Thanks....

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I've seen keystones priced at more than the lowest price. I think it depends, like other trains, on how full it is. And I thought the subsidy was only for points west of phl: I took some great "points runs" from PHL-ARD at only $5 or so a while back, whereas NYP-NWK is more than $20, even on a Keystone.

I don't know why, but yes, the Keystones do appear to usually have more inventory in the cheapest fare buckets.

Would be curious to know the reason...

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Reserved means reserved--I'm not sure why you would think that Keystone trains would be exempt. On a few occasions I have had conductors let me slide on using a ticket for a train I'm not riding, but this has always been in cases of cancelled or heavily delayed trains, with decisions to board made while standing on the platform.

It's so easy to change your tickets by phone that I wonder why you would even want to use a more expensive ticket on a Keystone train. Just book all your tickets as one-ways and don't pull them from Quik-Trak until just before you travel. Then you can call Amtrak anytime before the trip to make changes--including putting yourself on a cheaper train if you find yourself able to catch one.

The Keystone is indeed cheaper than Regionals even between PHL and NYP. Just do a price check for that city pair and you will see the difference.

I don't know why, but yes, the Keystones do appear to usually have more inventory in the cheapest fare buckets.

Would be curious to know the reason...

If had to guess, I would say the cheaper fares are because the Keystone lacks any amenities, and the ridership patterns mean more of the lower fare buckets remain available. I've taken the Keystone quite often at 5 PM on a Friday evening and it is practically empty between PHL and NYP. I would imagine that most people coming from the Harrisburg portion of the route disembark at PHL rather than continuing to NYC.