US Flight Chaos September 28, 2026: Nor’easter Triggers 4,338 Delays and 481 Cancellations — LaGuardia Today’s Worst US Airport With 641 Delays and 62 Cancellations — Boston Logan 301 Cancellations — Amtrak Boston–New York Suspended — Republic Airlines 79 Cancels, Southwest 574 Delays, JetBlue 50 Cancels — The Fourth Major US Aviation Crisis in 8 Days

The nor’easter that has battered the US Northeast since Friday has now produced its worst single day of aviation chaos. September 28, 2026 has recorded 4,338 delays and 481 cancellations across the United States — with LaGuardia Airport posting 641 delays and 62 cancellations to claim the title of today’s worst airport in America. Boston Logan’s cancellation count of 301 is the most astonishing figure of the day — an airport almost entirely shut down. Amtrak has suspended its Boston–New York service, cutting the Northeast Corridor’s last major transport lifeline. This is the fourth consecutive major US aviation crisis since September 21 — the FAA fibre cable cut, Hurricane Nolo, the nor’easter’s two previous days, and now this. If you are flying anywhere in the United States today, read every word of this before you leave home.

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🚨 PART 1: Today’s Numbers — September 28, 2026

These are the verified national figures for US flight disruption today, September 28, 2026, published at 00:56 GMT and confirmed across FlightAware and Travel and Tour World tracking:

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✈️ PART 2: Airport-by-Airport Breakdown — Every Hub, Every Number

🗽 LaGuardia (LGA) — Today’s Worst US Airport: 641 Delays, 62 Cancellations

Nearly 600 flights into and out of LaGuardia were delayed as of Friday afternoon, according to FlightAware data cited by Forbes. By September 28, that figure has surged to 641 delays and 62 cancellations — making LaGuardia the single worst airport in the United States today. At New York’s LaGuardia Airport, travelers can expect to be delayed by about 2.5 hours, according to the FAA.

LaGuardia is particularly vulnerable to nor’easter conditions because of its single runway configuration and tight airspace corridors over the East River. When crosswind limits are exceeded, the airport effectively reduces to a single-direction operation — dramatically cutting the number of aircraft it can safely handle per hour.

✈️ Boston Logan (BOS) — 275 Delays, 301 Cancellations

Boston Logan’s cancellation count of 301 is the defining number of this nor’easter. Boston Logan International Airport is bearing the brunt of the flight disruptions, with more than 300 delays and cancellations reported as of Sunday afternoon, according to FlightAware. The airport is also experiencing delays averaging about 3.5 hours due to wind, according to the Federal Aviation Administration.

The FAA issued the ground stop because of strong winds from the nor’easter, leaving travelers scrambling to find new flights and make alternate plans. One Boston traveller told Boston 25 News: “I was watching all the FAA warnings, and there was this ground stop on, then off, then on again and off again, and it’s been really uncertain.”

The 301 cancellation figure at a single airport on a single day is among the highest recorded at Boston Logan in any weather event in recent aviation history. For context, the December 2023 nor’easter produced over 400 cancellations across the entire Northeast; this storm has produced 301 at Boston alone.

🌐 San Diego (SAN) — 247 Delays

San Diego’s 247 delays today are the clearest illustration of how a Northeast weather event cascades across the entire national airspace system. Those ripple effects are stretching all the way to LAX, with the disruptions affecting travelers far beyond the storm zone as aircraft and crews are knocked out of position. San Diego, 3,000 miles from the nor’easter, is feeling it because aircraft and crews scheduled to operate West Coast routes today are stranded in Boston, New York and Providence.

🌉 San Francisco (SFO) — 209 Delays

SFO’s 209 delays follow the same cascade logic. United Airlines, which operates a major hub at SFO, is posting 532 delays nationally today — the knock-on effect of its Boston and New York operations being paralysed ripples directly into its West Coast network.

🏛️ Philadelphia (PHL) — 167 Delays

John F. Kennedy International Airport and Philadelphia International Airport are reporting slowdowns under an hour, according to the FAA. Philadelphia’s 167 delays reflect its position on the southern edge of the storm zone — still affected but less severely than the New England hub airports.

Other Affected Hubs (September 28 data):

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✈️ PART 3: Carrier-by-Carrier Breakdown — Every Airline, Every Number

Republic Airlines — 79 Cancellations, 357 Delays: Why the Regional Carrier Is the Hidden Story

Republic Airlines is today’s most cancelled carrier and it is the story most outlets are missing. Republic is a regional operator — it flies as American Eagle and United Express, operating short-haul routes into Boston, New York and the Northeast on behalf of American Airlines and United Airlines. When a nor’easter devastates the Northeast, Republic’s fleet — concentrated precisely in the affected region — is the first to be cancelled and the last to recover.

Republic’s 79 cancellations today represent a cancellation rate that dwarfs any major carrier. Those 79 cancelled flights are 79 American Eagle or United Express rotations — short-haul routes serving communities that depend on regional connectivity: Albany, Burlington, Manchester NH, Providence, Portland, Bangor, and dozens of smaller Northeast cities.

JetBlue — 50 Cancellations: Boston and New York Hub Meltdown

JetBlue operates its two largest hubs at Boston Logan and JFK. Both are severely disrupted today. JetBlue has issued a Northeast weather waiver covering flights operated between September 25 and September 27 involving Boston and several other airports, including John F. Kennedy International Airport, LaGuardia, Newark, Nantucket, Martha’s Vineyard, Providence, Worcester and Hyannis. JetBlue’s 50 cancellations and 156 delays today are the direct consequence of its heavy concentration in the two worst-hit markets.

Southwest Airlines — 574 Delays: Network-Wide Cascade

Southwest’s 574 delays nationally today reflect the unique vulnerability of its point-to-point network model. Unlike hub-and-spoke carriers that can isolate disruption to a single hub, Southwest operates a rolling network where one delayed aircraft cascades through four, five or six subsequent flights. A plane stuck in Boston this morning becomes a delay in Baltimore, Nashville, Denver and Las Vegas by this afternoon.

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🚂 PART 4: Amtrak Suspended — The Northeast Corridor Goes Dark

Today’s transport crisis is not limited to aviation. Amtrak’s Boston–New York service has been suspended due to the severe nor’easter — simultaneously eliminating the primary rail alternative for passengers whose flights have been cancelled.

Not only are flights being halted today due to the nor’easter, but Amtrak’s connection on the East Coast. According to The New York Times, Amtrak trains between Connecticut and Massachusetts are also canceled today, as well as some services between Boston and New York.

This matters enormously for the passenger rights picture. When a flight is cancelled and an airline offers rebooking, one of the standard passenger options is to take a train instead and claim the cost back. Today, that option does not exist between Boston and New York. The storm has simultaneously closed:

• Air — mass cancellations at Logan and LaGuardia
• Rail — Amtrak Boston–New York suspended
• Road — I-95 and Route 1 under coastal flooding and wind advisories

For passengers trying to get between Boston and New York today, there is no easy alternative. The honest advice is: do not travel today unless it is essential.

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📅 PART 5: The September 2026 Crisis Timeline — Four Events in Eight Days

Today is the fourth consecutive major US aviation crisis since September 21. Your readers have followed this series every day — here is the full picture:

In the 8 days since September 21, US aviation has faced: a man-made infrastructure failure, a Category 1 hurricane, and a three-day nor’easter producing fuel shortages, 80,000+ power outages, and Amtrak suspension. The September 2026 aviation crisis is now one of the most sustained periods of US flight disruption since the 2022 Southwest holiday meltdown.

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🌍 PART 6: Market-by-Market Guide

🇺🇸 US Travellers

If you are flying anywhere in the United States today — not just in the Northeast — check your flight status before leaving home. The cascade effect means San Diego, San Francisco, Los Angeles, Chicago, Atlanta and Dallas are all feeling today’s disruption. Under US DOT rules, if your airline cancels your flight for any reason, you are entitled to a full cash refund to your original form of payment. You do not have to accept a voucher. If you choose to rebook, the airline must rebook you at no extra cost on the next available flight.

🇨🇦 Canadian Travellers

Air Canada, WestJet and Porter Airlines all operate into the Northeast US. If your transatlantic or transborder flight into Boston or New York has been cancelled today, Canada’s APPR entitles you to rebooking at no extra cost. Cash compensation is not required for weather-caused disruptions under APPR, but your right to meals after a two-hour delay and accommodation for overnight disruptions applies regardless of cause.

🇬🇧 UK Travellers

British Airways operates Heathrow–Boston and Heathrow–New York services. Virgin Atlantic flies Heathrow–JFK and Heathrow–Boston. If your UK-departing transatlantic flight lands in a disrupted Northeast hub today, UK261 rights govern your outbound leg. On your return leg departing from a US airport, US DOT rules apply. Check your airline’s app for rebooking options before calling — hold times today will be extremely long.

🇦🇺 🇳🇿 Australian and New Zealand Travellers

Qantas operates Los Angeles–Dallas–East Coast connections for Australian passengers. The cascading delays in Dallas and Chicago today mean Australians connecting onwards to the Northeast are at elevated risk. Monitor your full itinerary on the Qantas app and contact the airline immediately if your onward connection is at risk.

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🛡️ PART 7: Passenger Rights — What You Are Owed TODAY

Key rule for today: Today’s cancellations are weather-caused. That means airlines are not required to pay additional cash compensation beyond rebooking and care. However, your refund right is unconditional — if the airline cancels your flight for any reason, you can always demand a full cash refund to your original payment method.

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✅ PART 8: Complete Waiver Guide — Every Airline, Every Detail

⚠️ American Airlines waiver expires TODAY September 28. This is your final opportunity to rebook under American’s no-fee policy. Go to aa.com/travel-alerts right now if you have not yet changed your flights.

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✅ PART 9: 7-Step Action Checklist — Right Now

1. Check your flight on your airline app — not email, not the airport website — the app is fastest
2. If American: Rebook TODAY — waiver expires at midnight tonight
3. Do not go to Boston Logan unless your specific flight is confirmed operating — 301 cancellations means the majority of Logan’s schedule is not running
4. Do not rely on Amtrak Boston–New York — service is suspended
5. If you want a refund: Request it in writing through the airline’s website — state clearly “I want a full cash refund to my original payment method”
6. Keep all receipts — meals, transport, hotel — you can claim reasonable care expenses from your airline
7. If stuck overnight: Ask your airline specifically for hotel accommodation — do not book independently without first asking; many airlines have negotiated hotel rates

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🔗 Related Articles

• Nor’easter Day 3: Boston Jet Fuel Crisis — Barges Stranded, Airlines Tanker-Trucking Fuel — September 28 Update
• US Flight Chaos September 25, 2026 — 4,375 Delays, Southwest 1,128 Delays, Hurricane Nolo Waivers
• FAA Fibre Cable Cut September 21, 2026 — How One NJ Construction Crew Shut Down Newark, JFK, LaGuardia and Philadelphia
• Hurricane Nolo Hawaii September 25, 2026 — Category 1 Hits Big Island, Full Airline Waiver Guide
• US Government Shutdown October 2026 — What It Means for TSA, FAA and Your Flights

🌐 Official Sources

• FAA NAS Status live — nasstatus.faa.gov
• FlightAware MiseryMap live — flightaware.com/miserymap
• Delta nor’easter waiver — news.delta.com
• American Airlines waiver — aa.com/travel-alerts
• JetBlue waiver — jetblue.com/travel-info/travel-alerts
• Cape Air North Region — capeair.com
• US DOT Passenger Rights — transportation.gov
• Boston Logan Airport status — massport.com

Posted By : Vinay

As a lead contributor for Travel Tourister, Vinay is dedicated to serving our Tier 1 audience (US, UK, Canada, Australia). His mission is to deliver precise, fact-checked news and actionable, data-driven articles that empower readers to make informed decisions, minimize travel risks, and maximize their adventure without compromising safety or budget.