Traveling through These Airports? Don't Connect to Their Public Wi-Fi

Image: Be careful which airport Wi-Fi networks you use while traveling. (photo via Urupong /iStock / Getty Images Plus)
Image: Be careful which airport Wi-Fi networks you use while traveling. (photo via Urupong /iStock / Getty Images Plus)
Mia Taylor
by Mia Taylor
Last updated: 12:49 PM ET, Thu July 19, 2018

You may want to think twice before using the Wi-Fi at San Diego International Airport.

A new study from Cloud security company Coronet ranks the safety of the public Wi-Fi at 45 of the busiest airports and SDIA was found to be the absolute worst.

The study reviewed data over a five-month period starting in January. Based on that review, each airport was assigned a threat index score which is an indication of device vulnerability and Wi-Fi network risks.

While free, public airport Wi-Fi may often be a godsend, the networks are typically unencrypted, insecure or improperly configured, said the Coronet study.

"Far too many U.S. airports have sacrificed the security of their Wi-Fi networks for consumer convenience," said Dror Liwer, Coronet's founder and CISO. "As a result, business travelers in particular put not just their devices, but their company's entire digital infrastructure at risk every time they connect to Wi-Fi that is unencrypted, unsecured or improperly configured."

San Diego's airport scored a 10 out of 10, higher than any other airport. Coronet found that a Wi-Fi access point with the name "#SANfreewifi" was running an ARP Poisoning attack, a fact that should make most Wi-Fi using travelers cringe. While the site appeared to users to be the airport-sanctioned free Wi-Fi server, in fact, it was not.

According to the report, the chances of connecting to a medium-risk network in San Diego are 30 percent. The odds of logging onto a high-risk one are about 11 percent.

The top 10 most vulnerable airports are:

-San Diego International (San Diego) - Threat Index Score: 10

-John Wayne Airport-Orange County Airport (Santa Ana, California) - Threat Index Score: 8.7

-William P Hobby Airport (Houston, Texas) - Threat Index Score: 7.5

-Southwest Florida International Airport (Fort Myers, Florida) - Threat Index Score: 7.1

-Newark Liberty International Airport (Newark, New Jersey) - Threat Index Score: 7.1

-Dallas Love Field (Dallas, Texas) - Threat Index Score: 6.8

-Phoenix Sky Harbor International Airport (Phoenix, Arizona) - Threat Index Score: 6.5

-Charlotte Douglas International Airport (Charlotte, North Carolina) - Threat Index Score: 6.4

-Detroit Metropolitan Wayne County Airport (Detroit, Michigan) - Threat Index Score: 6.4

-General Edward Lawrence Logan International Airport (Boston, Masachusetts) - Threat Index Score: 6.4

Want to plan your next trip through some of the country's safer airports?

According to Coronet, the best choices are Chicago's Midway, where the Threat Index is 4.5 and Raleigh Durham International with a score of 4.9.

When connecting to public Wi-Fi you put three things at risk: your device, your credentials and your data.

Malicious public Wi-Fi networks often look like any other network, according to Liwer. But by clicking on 'accept terms and conditions' to join, you may be installing malware on your device.

As for your credentials, when connecting to a dangerous network, you could be a victim of Wi-Fi phishing, which involves a hacker creating a webpage that looks just like another one (think the sign-in page for your work email). When your username and password is entered, the reality is you are entering information on a hacker's site, according to CNBC.

Data meanwhile, is an issue for business travelers who typically are working while passing through airports. Transferring data to or from coworkers on a hacker's network means the information is going through the hacker's devices.


For the latest travel news, updates and deals, subscribe to the daily TravelPulse newsletter.

Topics From This Article to Explore

More From TravelPulse

Related Videos

Mia Taylor

Mia Taylor

Senior Editor

Mia Taylor is an award-winning journalist who has two decades of experience. Most recently she worked as a staff writer for America's largest digital publisher DotdashMeredith, where she contributed stories on a daily basis to four of the company's most iconic brands - Parents,Real Simple, Better Homes & Gardens, and Health. Her work has also appeared in Travel + Leisure, The Boston Globe, The San Diego UnionTribune, Westways Magazine, Fortune, and more.

Grow Your Travel Business With Certified Courses

Travel Agent Academy
Travel Agent Academy
Puerto Vallarta Specialist ProgramEnveloped in the beauty of a by-gone time, this colorful town on Mexico’s Pacific Coast is sure to win...
Travel Agent Academy
Travel Agent Academy
Korea Travel Specialist ProgramThis course will allow you to explore this fascinating country's incredible diversity of experiences...
Travel Agent Academy
Travel Agent Academy
Costa Rica Specialist ProgramCosta Rica Specialist Program academy ENROLL NOW Costa Rica offers golden shores, fish-filled waters,...
Travel Agent Academy
Travel Agent Academy
Puerto Vallarta Specialist ProgramEnveloped in the beauty of a by-gone time, this colorful town on Mexico’s Pacific Coast is sure to win...
Travel Agent Academy
Travel Agent Academy
Korea Travel Specialist ProgramThis course will allow you to explore this fascinating country's incredible diversity of experiences...
Travel Agent Academy
Travel Agent Academy
Costa Rica Specialist ProgramCosta Rica Specialist Program academy ENROLL NOW Costa Rica offers golden shores, fish-filled waters,...

Don't Miss These Travel Agent Events and Trainings

Upcoming Webinar
Small Groups, Big AdventuresThursday, June 18, 2026
2:00pm ET
Join Trafalgar and Insight Vacations for an exclusive launch webinar introducing 56 new Small Group...
Upcoming Webinar
Discover Houston, A World in a CityMonday, June 22, 2026
2:00pm Eastern
Join Visit Houston for an inside look at one of the country’s most dynamic and diverse destinations....
Upcoming Webinar
Why Cruise, When You Can CunardWednesday, June 24 2026
2:00pm Eastern
When cruise is the option, Cunard is the difference. This session explores what sets the Cunard...
Upcoming Webinar
Small Groups, Big AdventuresThursday, June 18, 2026
2:00pm ET
Join Trafalgar and Insight Vacations for an exclusive launch webinar introducing 56 new Small Group...
Upcoming Webinar
Discover Houston, A World in a CityMonday, June 22, 2026
2:00pm Eastern
Join Visit Houston for an inside look at one of the country’s most dynamic and diverse destinations....
Upcoming Webinar
Why Cruise, When You Can CunardWednesday, June 24 2026
2:00pm Eastern
When cruise is the option, Cunard is the difference. This session explores what sets the Cunard...