Some passengers reported delays of one, two, or even three hours, particularly on in-bound flights to Logan.
Boston Globe によると in-bound が特にとありますが、out-bound も個人体験としては同様ですね
Construction began May 15 on the 10,000-foot runway that runs northeast-to-southwest along Logan’s eastern shoreline and on busy days handles half of the flights at the airport.
繁忙期には全体の半分の飛行機が利用する滑走路とのことなので、影響がでるのはわかりますね。
…officials expect to mostly reopen it June 23, with the entire project being completed by November.