First class this time! However, since it is a domestic flight, I cannot use the lounge (AA4577) 

◆Overview
It's a business class round-the-world ticket, but now that I think about it, travel within the United States is on domestic flights. It was a flight that made me realize this.
◆Contents
2023
June 21st
00:00 Check out hotel with great view
00:38 Transfer to JFK Airport by train
01:34 Charge Metro Card for AirTrain (currently supports OMNY)
03:15 Arrive at JFK/T8 (Yes, this time it's a domestic flight, right?)
05:00 You cannot use the lounge even if you are in first class on domestic flights.
05:14 FP short story ① “Benefits available with JFK Airport T8 Priority Pass”
05:36 Bobby Van’s (immediately after entering the restricted area)
06:04 FP short story ② “Beware of Priority Pass companion fees”
06:10 FP short story ③ “Issuing Priority Pass at a discount with Rakuten Premium Card”
06:26 Boarding (AA4577 JFK→DCA aircraft E170/175)
07:36 Arrival at Ronald Reagan Washington National Airport (DCA) (next preview)
◆Round-the-world ticket 2023 related video playlist
• 世界一周航空券関連（2023年5-7月）
◆This route 54 days
2023
5/16 Haneda → Paris
6/6 Paris → London
6/10 London → Barcelona
6/14 Barcelona → New York
6/21 New York → Washington D.C.　★now!
6/26 Washington D.C. → Las Vegas
7/3 Las Vegas → San Francisco
7/7-7/8 San Francisco → Narita