The minister says Canadians have witnessed significant disruptions in the economy because of the pandemic and that the government is working on tackling those issues.
He says it is labour shortages that are primarily contributing to delays.
Alghabra, who recently tested positive for COVID-19, appeared via video conference along with a number of other officials.
Several Conservative MPs focused their lines of questioning on the ArriveCan app and blamed it for the ongoing issues.
In his testimony, Alghabra defended the app, saying it has helped reduce wait times by digitizing the process.
Last month, due to a glitch, ArriveCan instructed about 10,200 travellers to quarantine for 10 days when they didn't have to.
Bianca Wylie, a partner at Digital Public, questioned why the app would be automating those decisions in the first place, rather than sticking to the information-collection mandate it was launched with.
Conservative MP Melissa Lantsman asked Alghabra if the federal government bears any responsibility for the delays at airports that have wreaked havoc on travellers for months.
"I blame it on COVID," Alghabra replied.
#COVID19 to blame for #AirportDelays, says transport minister @OmarAlghabra. #CDNPoli
Lantsman also asked whether the minister agreed that the federal government should enact a service standard law that would set standards for elements of air travel, such as the length of time customers wait for baggage.
"This is a constructive feedback," said Alghabra. "Baggage handling is the responsibility the airlines. Having said that, can we do something to ensure that we have a higher standard? I think that's a good point."
Airlines and airports have been grappling with a surge in customers this summer, compounded by staffing shortages affecting both carriers and federal agencies.
As a result, travellers have experienced widespread flight cancellations, baggage delays and lengthy lineups, particularly at Toronto's Pearson International Airport.
Alghabra said part of the reason Canadian airports have been especially affected by delays is a sharp increase in demand. He said travel surged by 252 per cent between January and August, compared with 63 per cent in the United States.
"Let's not dismiss the progress that has taken place over the last few weeks," he said.
Transport Canada said in a recent statement that it has been working with industry partners to improve conditions at airports and there were fewer cancellations and delays in the first week of August compared with a month ago.
Some experts have pointed to airlines overbooking flights as being responsible for delays.
Air Canada announced in June that it would cut more than 15 per cent of its schedule in July and August — more than 9,500 flights — due to the strained air transport system. Meanwhile, WestJet said it "proactively" removed flights from its Pearson schedule, anticipating summer travel snarls.
In other countries, airports themselves have ordered airlines to cut back on flights. The U.K.'s Heathrow Airport ordered airlines to stop selling tickets for summer flights as it imposed a cap on the number of passengers per day.
This report by The Canadian Press was first published Aug. 19, 2022.