Quantcast

United Airlines flight delayed four hours after passenger smokes marijuana onboard

Airline CEO wants airports to cap passengers at 2 alcoholic drinks to limit on-board disruptions
Regulator cuts Malaysia Airlines' air operator certificate duration after probe
United Airlines flight attendants are prepared to strike. Here's why it's still unlikely.
Emirates Will Buy 5 Airbus A380s From Lessor For $200 Million
Delta Air Lines named official airline of the WNBA
Pair Of C-Suite Officials Depart Wheels Up
LAX Receives Final Cars for People Mover Train
Alaska Airlines and Hawaiian Airlines merger clears Justice Department hurdle, now faces DOT
Alaska Airlines flight attendants reject new contract, union says there's 'more work to do'
Elliott Investment To Push For 10 New Boardroom Directors At Southwest Airlines
Alaska Air Backs JetZero Blended-Wing Design
AI in Aviation Line Maintenance: A Strategic Response to Delays, Satisfaction, and Staffing Challenges
Air taxi service plans for 2026 Los Angeles launch at USC, SoFi and LAX
VistaJet Flight Brings Home Americans in Prisoner Swap
Air Canada Blames Paris Olympics On Decreased Profits
Delta passengers sue airline over refund refusals after CrowdStrike meltdown
Microsoft fires back at Delta after massive outage, says airline declined ‘repeated’ offers for help
Korean Air Confirms A Spacious Lounge Is Coming To The New Terminal One at New York JFK
VAS Aero Services to Acquire an Additional 17 Airbus A320 Airframes, Bringing to 23 the Total Number of A320s Slated for Teardown and Harvested Parts Redistribution
Delta CEO says CrowdStrike-Microsoft outage cost the airline $500 million
Boeing Reports $16.9 Billion In Revenue For 2nd Quarter With 5,400 Commercial Aircraft Backlog
United Airlines says flight attendant in Terrell Davis incident is no longer employed and NFL legend’s ‘no fly’ ban is lifted | CNN
Nepal Plane Crash Kills 18 After Takeoff - Airline Ratings
Southwest Airlines is getting rid of open seating | CNN Business
CrowdStrike Outage Caused 10% Spike in Air Charter
Aircraft Engine Maintenance and Repair to Peak in 2026, Worsening Capacity Shortage for Commercial Aviation, Says Bain & Company
Joby’s Electric Air Taxi Makes European Debut
The National Right to Work Legal Defense Foundation announces NLRB-scheduled vote to remove union officials
Families recount the horror of MH17 ten years on - Airline Ratings
777-9 Enters Certification Flight Testing - AVweb
United Airlines flight delayed four hours after passenger smokes marijuana onboard
Policy
Webp scoo
Scott Kirby, chief executive officer | United Airlines

A United Airlines flight from San Francisco International Airport to Cancun International Airport was delayed for four hours on August 5 after a passenger smoked marijuana in the aircraft's front lavatory during a ground delay. The incident occurred on flight UA1679, operated by a Boeing 737 MAX 9.

Although marijuana is legal in California, federal law applies at airports and on airplanes. The Federal Aviation Administration (FAA) prohibits smoking and the use of illegal substances on commercial flights. If marijuana is used or found in airport spaces, authorities will take action.

The main issue that led to the extended delay was exposure of the aircrew to secondhand marijuana smoke. Pilots in the United States are subject to random drug testing, and failing such tests can result in immediate termination and loss of license. In this case, the pilot refused to operate the flight after learning about the incident and requested a replacement crew.

Get the Newsletter
Sign-up to receive weekly round up of news from Sky Industry News
By submitting, you agree to our Privacy Policy and Terms of Service. By providing your phone number you are opting in and consenting to receive recurring SMS/MMS messages, including automated texts, to that number from our short code. Msg & data rates may apply. Reply HELP for help, STOP to end. SMS opt-in will not be sold, rented, or shared.

Passengers were required to disembark, and a new crew was assigned before the flight could continue. According to Yahoo News, United Airlines provided $15 meal vouchers as compensation for the delay. One passenger shared their experience online, quoting the captain: “I have 30 years left of my career at United, I’m not willing to risk getting drug tested when I get to Houston.”

FAA policy maintains zero tolerance for pilots operating under the influence of alcohol or drugs, including prescription substances that may impair judgment. Regulations require that pilots wait at least eight hours between consuming alcohol and flying. The FAA does not make exceptions for extenuating circumstances involving drug exposure.

Obtaining a commercial pilot’s license requires significant time and financial investment. A failed drug test—even due to secondhand exposure—can end a pilot’s career.

The captain has ultimate responsibility for safety aboard an aircraft and makes final decisions regarding flight operations. Strict training and regulations aim to ensure professionalism among aircrew members and maintain aviation safety standards.

While there may have been little direct safety risk from this particular incident, federal policies exist to protect both passengers and crew from potential hazards caused by impaired individuals onboard.

Attribution for part of this coverage was given to Green State’s reporting on public reaction to the event.

Organizations Included in this History
More News

Flying Food Group, Inc. has announced its Employees of the Month at its LAV facility.

Oct 28, 2025

Flying Food Group's San Francisco facility recently celebrated Hispanic Heritage Month with its employees.

Oct 28, 2025

Etihad Airways has announced the launch of a new route connecting Abu Dhabi and Addis Ababa.

Oct 27, 2025

United Airlines has unveiled its Summer 2026 schedule, which includes new flights from Newark to Bari, Split, Santiago de Compostela, and Glasgow, as well as from Newark to Seoul and Washington, D.C., to Reykjavik.

Oct 27, 2025

Ethiopian Airlines has announced a limited-time 20% discount on fares between Addis Ababa and Porto.

Oct 27, 2025

Avianca has announced that passengers are encouraged to register for the Biomig biometric migration system to avoid lines and delays at participating airports in Colombia.

Oct 27, 2025