JFK-ZRH-JFK (8/18-8/25) I know from other considerations that my flight(s) no longer exist. Officially DL has not yet notified me.

DATE AND FLIGHT STATUS CLASS SEAT/CABIN
JFK toto ZRH | Tue 18Aug2020 | DL 52 | OPEN Z 8A
ZRH toto JFK | Tue 25Aug2020 | DL 53 | OPEN Z 3A

Detailed Charges
Per passenger summary of air charges excluding taxes and fees
description amount currency
Air Transportation Charges
Base Fare: $900.00 USD
Carrier-imposed International Surcharge (YR): $1,300.00 USD
Taxes, Fees and Charges
Per passenger summary of air travel taxes, fees, and related charges. Per passenger total travel charges provided at end of table
description amount currency
United States - September 11th Security Fee(Passenger Civil Aviation Security Service Fee) (AY) $5.60 USD
Switzerland - Airport Passenger Security & Noise Charge (CH) $35.60 USD
United States - Transportation Tax (US) $37.80 USD
United States - Animal and Plant Health Inspection Service Fee (APHIS User Fee - Passengers (XA) $3.96 USD
United States - Passenger Facility Charge (XF) $4.50 USD
United States - Immigration and Naturalization Fee(Immigration User Fee) (XY) $7.00 USD
United States - Custom User Fee (YC) $5.89 USD
Summary of all charges for all passengers, including air-fare, taxes, fees, and other charges
description amount currency
Total Price: $2,300.35 USD

I'm surprised there isn't an extra fee for breathing air on the plane.