Willis Tower

EXHIBIT 10.4.2

Xxxxxx Tower

000 Xxxxx Xxxxxx Xxxxx

Xxxxxxx, Xxxxxxxx 00000

xxxxxx.xxx

March 31, 2020

Air Wisconsin Airlines LLC

X0000 Xxxxxxxxxx Xxxxx, Xxxxx 000

Xxxxxxxx, XX 00000

Attention: Xxxxxx Xxxx, President and Chief Executive Officer

with a copy to:

DLA Piper

0000 Xxxxxxxxx Xxxxx, Xxxxx 0000

Xxx Xxxxx, XX 00000

Attention: Xxxxxxx X. Xxxxx

Re: Waiver of United’s Article 5 Rights

Dear Rob:

Reference is made to that certain Capacity Purchase Agreement, dated as of February 26, 2017 (the “CPA”), by and between Air Wisconsin Airlines LLC (“Contractor”) and United Airlines, Inc. (“United”).

In accordance with Section 10.05 of the CPA, United hereby waives compliance by Contractor with the terms and conditions of Article V of the CPA from and after the date of this letter.

This letter shall not constitute a waiver of any other term or condition of the CPA, and, except as expressly set forth in this letter, all of the terms and conditions of the CPA shall continue to be, and remain, in full force and effect in accordance with their respective terms.    

With best regards,

UNITED AIRLINES, INC.

/s/ Xxxxx Xxxxxx

SVP United Express