Flight passengers are advised to reconsider drinking water on planes following a study revealing contamination in airline water systems.
Concerns over airline water safety have emerged from a recent analysis conducted by the Center for Food as Medicine and Longevity, based in New York City. The study examined over 35,000 samples collected from airline water systems between 2022 and 2025, highlighting potential risks for passengers.
The analysis assessed both major and regional carriers, evaluating them on contamination violations, E. coli findings, maintenance practices, and the frequency of water system cleanings. According to the study, a score of 3.5 or higher indicated relatively safe water, while lower scores suggested potentially unhealthy conditions.
During the study period, researchers identified 32 E. coli violations across 21 airlines. Delta Air Lines emerged as the leader in water safety, receiving the highest scores, while Alaska Airlines also ranked favorably. In contrast, Spirit Airlines, JetBlue, and American Airlines found themselves at the bottom of the rankings.
Charles Platkin, the researcher behind the study, expressed concerns about the reliance on self-reported data from airlines. “Compliance should be the floor, not the ceiling,” he stated, emphasizing that airlines must do more than just meet minimum federal guidelines to ensure passenger safety.
Platkin further noted that travelers should not have to worry about the safety of onboard water when ordering drinks or washing their hands. “These aren’t luxuries; they’re basic expectations,” he remarked.
Nicolette M. Pace, a registered dietitian and founder of NutriSource in New York, echoed Platkin’s sentiments, advocating for simple precautions when flying. She recommended that passengers fill reusable water bottles after passing through security or opt for bottled water instead. Additionally, she advised using hand sanitizer rather than washing hands with airplane tap water.
Pace warned that consuming contaminated water, even in small amounts, can disrupt digestion and weaken immune defenses. She particularly emphasized the need for extra caution among children, older adults, and individuals with compromised immune systems.
In response to the study, Fox News Digital reached out to airlines that ranked both at the top and bottom of the analysis for comments. Spirit Airlines stated that it maintains an extensive testing and maintenance program for its onboard water systems, in compliance with the Environmental Protection Agency’s Aircraft Drinking Water Rule. “The well-being and comfort of our guests is very important to us,” the airline said, noting its progress in recent years and commitment to refining procedures as necessary.
American Airlines emphasized that its potable water program fully complies with EPA requirements and that a recent EPA audit found no significant issues. The airline is currently reviewing the Center for Food as Medicine and Longevity’s analysis, including its methodology, to explore potential enhancements to passenger safety.
Delta Air Lines highlighted its commitment to providing clean, safe, potable water for customers and employees, stating that its top ranking in water safety reflects this dedication. “Safety and quality in all aspects of our global service and operation are paramount at Delta,” the airline affirmed.
JetBlue also responded, reiterating that safety is their “first responsibility.” The airline noted that it serves bottled purified drinking water on all flights and follows EPA, FDA, and FAA guidelines for coffee and tea preparation. A spokesperson added that JetBlue conducts routine water system sampling and cleaning procedures to ensure the safety and reliability of the water used on its planes.
As concerns about airline water safety continue to grow, experts recommend that passengers remain vigilant and consider their options carefully when it comes to hydration during flights, particularly in light of the findings from this comprehensive study.
According to Fox News Digital, the implications of these findings underscore the importance of prioritizing safety in airline operations.