through December 2021. As of March 31, 2022, United owed Air Wisconsin $5,066 pursuant to the United capacity purchase agreement, which is recorded in accounts receivable, net, on the consolidated balance sheets. United has disputed that it owes a portion of that amount.
Under the United capacity purchase agreement, Air Wisconsin is eligible to receive incentive payments, or may be required to pay penalties, upon the achievement of, or failure to achieve, certain performance criteria primarily based on flight completion,
on-time
performance, and customer satisfaction ratings. The incentives are defined in the agreement and performance is measured on a monthly basis. At the end of each month during the term of the agreement, Air Wisconsin calculates the incentives achieved, or penalties payable, during that period and recognizes revenue accordingly, subject to the variable constraint guidance under Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) No. 606,
Revenue from Contracts with Customers
(Topic 606). Although the final reconciliations have not been completed for all periods, after considering operational performance related to expected incentive and penalty payments, Air Wisconsin has received, or is likely to receive, incentive payments, net of penalties, of $777 and $1,819 for the three months ended March 31, 2022 and 2021, respectively, under the United capacity purchase agreement.
Under the United capacity purchase agreement, Air Wisconsin is paid a fixed amount per aircraft per day for each month during the term of the agreement. In accordance with GAAP, the Company recognizes revenue related to the fixed payments on a proportional basis taking into account the number of flights actually completed in that period relative to the number of flights expected to be completed in subsequent periods during the remaining term of the agreement. Air Wisconsin deferred fixed revenues between April 2020 and June 2021 due to the significant decrease in its completed flights as a result of the
COVID-19
pandemic. Beginning in July 2021, due to an increase in completed flights and based on projected future completed flight activity, Air Wisconsin began reversing this deferral of fixed revenues, and it anticipates continuing to do so through February 2023, the end of the contract period. Accordingly, during the three months ended March 31, 2022, Air Wisconsin recognized $4,736 of fixed revenues that were previously deferred, compared to a deferral of $7,911 of fixed revenues in the three months ended March 31, 2021. Air Wisconsin’s deferred revenues related to the fixed portion of revenue under the United capacity purchase agreement will adjust over the remaining contract term based on the number of flights completed in each reporting period relative to the number of flights anticipated to be completed over the remaining contract term. The deferred fixed revenues as of March 31, 2022 and 2021 were $40,102 and $35,792, respectively.
Consistent with the discussion above, for the three months ended March 31, 2022, as compared to the three months ended March 31, 2021, Air Wisconsin also recognized increased
non-refundable
upfront fee revenues and increased fulfillment costs, both of which are amortized over the remaining term of the United capacity purchase agreement in proportion to the number of flights actually completed in that period relative to the number of flights expected to be completed in subsequent periods. During the three months ended March 31, 2022, Air Wisconsin recorded $1,066 of revenue from upfront fees and $114 of fulfillment costs, compared to $661 in revenue from upfront fees and $71 of fulfillment costs for the three months ended March 31, 2021. The deferred upfront fee revenue, in the amount of $4,654, is recorded as part of contract liabilities on the consolidated balance sheets.
As part of the October 2020 amendment to the United capacity purchase agreement (CPA Amendment), United issued a note receivable to Air Wisconsin in the amount of $11,048 along with a cash settlement of $670, of which $4,410 was deferred as of December 31, 2020, with the remaining portion to be recognized in proportion to the number of flights expected to be completed in subsequent periods. In October 2021, in accordance with the CPA Amendment, Air Wisconsin received $294 from United for the opening of a crew base, of which $73 was deferred as of December 31, 2021. For the three months ended March 31, 2022, Air Wisconsin recorded $519 of revenue related to these items, compared to $313 of revenue related to these items for the three months ended March 31, 2021. The deferred CPA Amendment revenue, in the amount of $2,263, is recorded as part of contract liabilities on the consolidated balance sheets.
The timing of the recognition of deferred fixed revenues,
non-refundable
upfront fee revenue, fulfillment costs, and deferred CPA Amendment revenue in future periods is subject to considerable uncertainty due to a number of factors, including the actual number of completed flights in any particular period relative to the estimated number of flights anticipated to be flown over the contract term.
The amount of revenues recognized for the three months ended March 31, 2022 that were previously recorded as contract liabilities were $6,321.
The CPA Amendment provided, among other things, for the payment or accrual of certain amounts by United to Air Wisconsin based on certain scheduling benchmarks. In conjunction with the significant reduction in departures and block hours resulting from the
COVID-19
pandemic in 2020, and consistent with the terms of the CPA Amendment, management determined that, from an accounting perspective, a new performance obligation was created by United, requiring Air Wisconsin to stand ready to deliver flight services. Air Wisconsin determined, using the expected cost plus a margin method, that the United “stand ready” rate represents the relative stand-alone selling price of the performance obligation. The stand ready performance obligation will be recognized over time on a straight-line basis based on the number of unscheduled block hours below a minimum threshold at the stand ready rate as determined in a manner consistent with the CPA Amendment. For the three months ended March 31, 2022 and 2021, Air Wisconsin