My wife and I took the Cardinal and then the Empire Builder westbound on our honeymoon in late April. We saw the gorge (barely!) running a bit late, and saw all of Glacier NP running on time (I think!).
I should actually go pull the status maps outputs from the trains we were on, that would be cool.
Edit: We were under an hour late on the Card:
* Cardinal
* +---------------- Station code
* | +----------- Schedule Arrival Day
* | | +-------- Schedule Arrival time
* | | | +----- Schedule Departure Day
* | | | | +-- Schedule Departure Time
* | | | | | +------------- Actual Arrival Time
* | | | | | | +------- Actual Departure Time
* | | | | | | | +- Comments
* V V V V V V V V
* NYP * * 1 655A * 655A Departed: on time.
* NWK * * 1 713A * 713A Departed: on time.
* TRE * * 1 750A * 751A Departed: 1 minute late.
* PHL * * 1 825A * 825A Departed: on time.
* WIL * * 1 850A * 850A Departed: on time.
* BAL * * 1 940A * 940A Departed: on time.
* WAS * * 1 1110A * 1110A Departed: on time.
* ALX * * 1 1129A * 1129A Departed: on time.
* MSS * * 1 1202P * 1202P Departed: on time.
* CLP * * 1 1235P * 1236P Departed: 1 minute late.
* CVS * * 1 155P * 159P Departed: 4 minutes late.
* STA * * 1 257P * 309P Departed: 12 minutes late.
* CLF 1 405P 1 408P 432P 437P Departed: 29 minutes late.
* WSS * * 1 500P * 543P Departed: 43 minutes late.
ALD * * 1 531P
* HIN * * 1 601P * 643P Departed: 42 minutes late.
* PRC * * 1 631P * 714P Departed: 43 minutes late.
THN * * 1 647P
* MNG * * 1 738P * 820P Departed: 42 minutes late.
* CHW * * 1 810P * 848P Departed: 38 minutes late.
* HUN * * 1 935P * 945P Departed: 10 minutes late.
* AKY * * 1 958P * 1009P Departed: 11 minutes late.
* SPM * * 1 1041P * 1052P Departed: 11 minutes late.
* MAY * * 1 1136P * 1144P Departed: 8 minutes late.
* CIN 2 103A 2 110A 106A 122A Departed: 12 minutes late.
* COI * * 2 305A * 309A Departed: 4 minutes late.
* IND 2 444A 2 630A 434A 630A Departed: on time.
* CRF * * 2 728A * 735A Departed: 7 minutes late.
* LAF * * 2 802A * 814A Departed: 12 minutes late.
* REN * * 2 807A * 816A Departed: 9 minutes late.
* DYE * * 2 857A * 909A Departed: 12 minutes late.
* CHI 2 1035A * * 1016A * Arrived: 19 minutes early.
And on time through the park:
Code:
* Empire Builder
* +---------------- Station code
* | +----------- Schedule Arrival Day
* | | +-------- Schedule Arrival time
* | | | +----- Schedule Departure Day
* | | | | +-- Schedule Departure Time
* | | | | | +------------- Actual Arrival Time
* | | | | | | +------- Actual Departure Time
* | | | | | | | +- Comments
* V V V V V V V V
* CHI * * 1 215P * 215P Departed: on time.
* GLN * * 1 239P * 248P Departed: 9 minutes late.
* MKE 1 345P 1 355P 346P 355P Departed: on time.
* CBS * * 1 505P * 505P Departed: on time.
* POG * * 1 534P * 535P Departed: 1 minute late.
* WDL * * 1 552P * 552P Departed: on time.
* TOH * * 1 630P * 630P Departed: on time.
* LSE * * 1 714P * 714P Departed: on time.
* WIN 1 746P 1 750P 745P 753P Departed: 3 minutes late.
* RDW * * 1 852P * 859P Departed: 7 minutes late.
* MSP 1 1031P 1 1115P 1014P 1115P Departed: on time.
* SCD 2 1234A 2 1240A 1228A 1240A Departed: on time.
* SPL * * 2 142A * 142A Departed: on time.
* DLK * * 2 238A * 238A Departed: on time.
* FAR * * 2 335A * 338A Departed: 3 minutes late.
* GFK * * 2 452A * 457A Departed: 5 minutes late.
* DVL * * 2 613A * 620A Departed: 7 minutes late.
* RUG * * 2 707A * 720A Departed: 13 minutes late.
* MOT 2 834A 2 906A 813A 906A Departed: on time.
* STN * * 2 957A * 1000A Departed: 3 minutes late.
* WTN * * 2 1107A * 1121A Departed: 14 minutes late.
* WPT * * 2 1141A * 1205P Departed: 24 minutes late.
* GGW * * 2 1226P * 1255P Departed: 29 minutes late.
* MAL * * 2 125P * 152P Departed: 27 minutes late.
* HAV 2 239P 2 304P 314P 332P Departed: 28 minutes late.
* SBY 2 517P 2 522P 506P 522P Departed: on time.
* CUT * * 2 551P * 551P Departed: on time.
* BRO * * 2 623P * 624P Departed: 1 minute late.
* ESM * * 2 741P * 741P Departed: on time.
* WGL * * 2 823P * 823P Departed: on time.
* WFH 2 856P 2 916P 856P 916P Departed: on time.
* LIB * * 2 1059P * 1102P Departed: 3 minutes late.
SPT * * 2 1149P PT
* SPK 3 140A 3 215A 1257A 216A Departed: 1 minute late.
* EPH * * 3 422A * 428A Departed: 6 minutes late.
* WEN 3 525A 3 535A 533A 541A Departed: 6 minutes late.
LWA * * 3 608A PT
* EVR * * 3 838A * 903A Departed: 25 minutes late.
* EDM * * 3 910A * 928A Departed: 18 minutes late.
* SEA 3 1025A * * 955A * Arrived: 30 minutes early.