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Travelers wait for their flight at Los Angeles International Airport. According to the flight tracking website, FlightAware, there have been 200 flights canceled so far on Aug. 8. On Aug. 7, 950 flights were canceled. (Michael Ho Wai Lee / SOPA Images / Sipa)(Michael Ho Wai Lee / SOPA Images / Sipa)

On Sunday, Chicago O’Hare saw the most cancellations and delays, with approximately 12% of flights canceled, and over 45% of flights delayed.

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Midway Airport (WTTW News)

U.S. airlines have canceled more than 100,000 flights this year, with 30,000 cancellations just since Memorial Day weekend, according to data from flight tracking site FlightAware.

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Airline passengers arrive at Chicago's Midway International Airport on the first day of the July 4th holiday weekend Friday, July 1, 2022, in Chicago. (AP Photo / Charles Rex Arbogast)

AAA predicts that nearly 48 million people will travel at least 50 miles or more from home over the weekend, slightly fewer than in 2019. AAA says car travel will set a record even with the national average price for gasoline hovering near $5.

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An Amtrak train which derailed after striking a dump truck is seen beyond a corn field Monday, June 27, 2022, near Mendon, Mo. (AP Photo/Charlie Riedel)

The first lawsuits have been filed only days after an Amtrak train collision and derailment in rural Missouri that left four people dead and injured up to 150 others.

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An image taken from a video posted by Robert Nightingale, who was a passenger aboard the Amtrak train that derailed on Monday, June 27, 2022, in Mendon, Missouri. (Credit: Robert Nightingale via CNN)

Three people are dead and at least 50 injured after an Amtrak train derailed Monday in Missouri, Cpl. Justin Dunn, a spokesperson for Missouri State Highway Patrol Troop B, told reporters Monday evening.

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Passengers get a COVID-19 test at Heathrow Airport in London, Nov. 29, 2021. (AP Photo / Frank Augstein, File)

The Biden administration is lifting its requirement that international air travelers to the U.S. take a COVID-19 test within a day before boarding their flights, easing one of the last remaining government mandates meant to contain the spread of the coronavirus.

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Children and their caregivers arrive for school in New York, Monday, March 7, 2022. (AP Photo / Seth Wenig, File)

The Biden administration announced Wednesday that it is extending the nationwide mask requirement for public transit for 15 days as it monitors an uptick in COVID-19 cases.

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Georgia’s Hartsfield-Jackson Atlanta International Airport reclaimed its title of world’s busiest airport for passenger traffic in 2021, handling about 75.7 million people. (Elijah Nouvelage / Reuters)

Move over, Guangzhou. Georgia’s Hartsfield-Jackson Atlanta International Airport is once again the world’s busiest airport.

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Kasama is among the Chicago restaurants receiving a Michelin star for the first time. (Kasama / Facebook)

Chicago’s restaurant scene received a welcome dose of good news Tuesday with the announcement of the 2022 Michelin star recipients: Four newcomers joined the list and Alinea held onto its three stars.  

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(WTTW News)

U.S. Customs and Border Protection is predicting O’Hare International Airport may see more passenger flights this fiscal year than it did prior to the pandemic.

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A Delta Air Lines plane taxis down a runway, Saturday, March 14, 2020, at John F. Kennedy International Airport in New York. (AP Photo / Kathy Willens, File)

Normally, airlines that fail to use their assigned rights, or “slots,” at John F. Kennedy and LaGuardia airports in New York, and Reagan National Airport outside Washington, risk losing them. However, regulators waived that rule in March 2020 when airlines cut flights due to the pandemic.

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A Dreamliner 787-10 arriving from Los Angeles pulls up to a gate at Newark Liberty International Airport in Newark, N.J., Monday, Jan. 7, 2019. (AP Photo / Seth Wenig, File)

The decision from the companies came Tuesday as the Biden administration intervened to broker tried to broker a settlement between the telecoms and airlines over a rollout of new 5G service.

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Dr. Allison Arwady, the commissioner of the Department of Public Health, addresses the news media on Wednesday Jan. 19, 2021. (Chicago's Mayor's Office)

Chicago's COVID-19 test positivity peaked at 19.6% on Jan. 1, Arwady said, and hit 12.6% on Tuesday, the lowest rate since Dec. 28, according to city data. 

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A passenger walks past a Southwest Airlines plane at Sky Harbor International Airport in Phoenix, March 26, 2021. (AP Photo / Sue Ogrocki, File)

The new high-speed 5G service uses a segment of the radio spectrum that is close to that used by altimeters, which are devices that measure the height of aircraft above the ground.

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(WTTW News)

“COVID is very real, it’s merciless, and unless you are fully vaccinated, your defenses against it are pretty low,” said Dr. Allison Arwady, the commissioner of the Chicago Department of Public Health. 

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To prevent the spread of COVID-19, air travelers wear masks at Love Field in Dallas, Friday, Dec. 31, 2021. Flight cancellations surged again on the last day of 2021, with airlines blaming it on crew shortages related to the spike in COVID-19 infections. (AP Photo / LM Otero)

Saturday’s disruptions weren’t just due to the virus, however. Wintry weather made Chicago — where forecasts called for 9 inches of snow — the worst place in the country for travelers. More than 800 flights were scrubbed at O’Hare Airport and more than 250 at Midway Airport.