America’s most-hated big-city airport is New York LaGuardia — and it’s not even close.

That’s the verdict from J.D. Power, which on Thursday released its 2016 North America Airport Satisfaction Study. Travelers hated LaGuardia even more this year than last.

The reason? The Port Authority of New York and New Jersey, which operates the airport, is spending $8 billion to construct a new, modern facility. Travelers will begin to see benefits by 2018, though it will take at least four more years before the project is substantially completed. For now, though, LaGuardia is not a pleasant experience for anyone. Travelers are not just complaining about the usual issues — like overcrowded terminals and underwhelming concessions — but they also gripe about construction-related woes.

The top four larger airports on J.D. Power’s remain the same as in 2015, with travelers preferring Portland, Oregon, Tampa, Las Vegas, and Orlando. But the fifth airport, Miami International, made a major jump, up from 18th last year. It’s not fully clear why Miami jumped so many spots, but J.D. Power credited Miami for improving its concessions.

The J.D. Power study, now in its 11th year, asked travelers for their opinions on six factors, including terminal facilities, security screening, baggage claim, food and retail. The company conducted its survey from January-October and received 36,465 usable responses.

While travelers are losing patience with LaGuardia, and nearby Newark Liberty International, which finished second-to-last, they are being increasing satisfied by U.S. airports, according to the study.

J.D. Power ranks airports on a 1,000 point scale, and this year’s average of 731 was a six-point increase from 2015. Travelers seem most happy about improved food, beverage, and shopping options at airports, according to the study.

The survey also ranked medium-sized airports. In the medium category, travelers preferred Indianapolis, Buffalo, and Southwest Florida International Airport in Fort Myers, while they disliked airports in Maui, Hartford, and Cleveland.

Here is the full list.

Large AirportsScore
Portland (Ore.) International Airport786
Tampa International Airport775
Las Vegas McCarran Airport759
Orlando International Airport751
Miami International Airport750
San Diego International Airport748
Salt Lake City International Airport747
Toronto Pearson Airport745
Washington Reagan National Airport742
Chicago Midway Airport741
Denver International Airport738
Charlotte Douglas Airport738
Dallas/Fort Worth International Airport737
Phoenix Sky Harbor Airport735
Minneapolis/St. Paul International Airport734
Detroit Metropolitan Wayne County Airport734
Baltimore Washington International Airport734
Hartsfield-Jackson Atlanta International Airport733
Honolulu International Airport727
Washington Dulles Airport726
San Francisco International Airport725
Large Airport Average724
Seattle-Tacoma International Airport721
Fort Lauderdale-Hollywood International Airport720
John F. Kennedy International Airport713
Houston Bush Intercontinental Airport709
Los Angeles International Airport702
Chicago O’Hare Airport689
Boston Logan Airport689
Philadelphia International Airport688
Newark Liberty International Airport669
New York LaGuardia Airport649
Medium AirportsScore
Indianapolis International Airport794
Buffalo Niagara International Airport791
Fort Myers/Southwest Florida International Airport790
Jacksonville International Airport789
Cincinnati/Northern Kentucky International Airport783
Ontario International Airport Airport781
Palm Beach International Airport Airport780
Ted Stevens Anchorage International Airport779
Raleigh-Durham International Airport779
Eppley Airfield Airport779
Nashville International Airport777
Albuquerque International Sunport777
Vancouver International Airport776
Dallas Love Field Airport775
Pittsburgh International Airport772
Milwaukee – General Mitchell International Airport772
San Antonio International Airport767
Sacramento International Airport767
John Wayne Orange County Airport765
Hollywood Burbank Airport764
San Jose International Airport761
Austin-Bergstrom International Airport761
Medium Airport Average760
Montréal-Pierre Elliott Trudeau International Airport757
John Glenn Columbus International Airport756
Calgary International Airport756
Kansas City International Airport744
Houston Hobby Airport737
Louis Armstrong New Orleans International Airport730
Lambert-St. Louis Airport728
Oakland International Airport726
Kahului Airport724
Bradley International Hartford/Springfield Airport724
Cleveland Hopkins Airport704
Photo Credit: During snow storms, like this one in 2014, travelers have few places to wait comfortably at New York LaGuardia. Zoran Milich / Reuters