FAA Limits Some Operations in Canada Due to 5G Interference Risk
On June 30, 2026, the United States Federal Aviation Administration (FAA) issued a series of airworthiness directives (ADs) that restrict certain operations of U.S.-registered aircraft in Canada starting July 1, 2026. This decision stems from concerns about possible interference between 5G signals and aeronautical systems, particularly radio altimeters.
Background and Reasons for the FAA Directive
With the expansion of 5G technology, many countries have started using new frequency bands for their cellular service. In Canada, the adoption of frequencies in the C-band close to those used by onboard altimeters has raised concerns about possible interference that could compromise flight safety.
The FAA estimates that these directives will affect about 1,000 aircraft registered in the United States. Among these, some transport aircraft are subject to operational restrictions when flying or operating near specific areas covered by 5G in Canada.
Practical Impact for Flights and Travelers
The immediate effect of the directives is a series of restrictions on certain routes and operations in Canadian airspace for particular aircraft. In practice:
- Some direct flights to or from Canada may be rerouted to avoid high-risk 5G coverage areas.
- Some aircraft may face operational limitations, such as being unable to use certain landing or takeoff procedures at Canadian airports with active 5G coverage.
- Airlines with fleets affected by this directive must coordinate with the FAA and Canadian authorities to plan alternative routes or operational changes.
For passengers, this potentially translates into:
- Delays or cancellations on USA-Canada flights or cross-border services.
- Schedule or connection changes to avoid problematic areas.
- Increased airline attention to promptly communicate any changes.
What Travelers Can Do to Prepare
If you have plans to travel to or from Canada and the United States, here are some useful tips:
- Check your flight status with the airline and on FlightGuard. You can use our flight risk check service to verify possible impacts: Check your flight risk on FlightGuard.
- Monitor communications from your airline. Airlines FR and U2, for example, are among the most active on these routes and may adjust operations based on the directives.
- Plan longer connection times, especially if your trip includes layovers at the most affected airports, such as Rome Fiumicino (FCO) or London Heathrow (LHR), which are major international hubs with transatlantic flights.
- Arrive at the airport early and make sure all your documents are ready, as there may be additional checks or longer boarding procedures.
- Stay informed on evolving regulations by following official sources and industry blogs like FlightGuard.
Which Airports and Airlines Are Most Involved?
Although the limitation primarily concerns the U.S. and Canada, transatlantic and international flights may experience ripple effects due to route and procedure reviews. Key airports involved include:
- Fiumicino (FCO) in Rome, serving many international airlines including low-cost carriers like Ryanair (FR) and easyJet (U2).
- London Heathrow (LHR), one of the main hubs for flights to North America and Canada.
Similarly, some airlines will be more exposed to these restrictions, including:
- FR (Ryanair): operating many short-haul flights as well as connections to major hubs.
- U2 (easyJet): with numerous international flights in Europe, some connected to Canadian or U.S. airports.
How FlightGuard Helps You Stay Updated
FlightGuard provides an integrated service to help travelers stay informed about risks and operational changes of airlines and airports, including news related to situations like 5G interference restrictions.
Check the dedicated pages for airports and airlines on FlightGuard for updates and specific details:
- Learn more about Fiumicino Airport (FCO)
- Learn more about Heathrow Airport (LHR)
- Visit the complete airline guides such as Ryanair (FR) and easyJet (U2)
Additionally, our simple and immediate tool allows you to check the actual risk for your flight with just a few clicks: Check your flight risk on FlightGuard.
Conclusion
The FAA directive limiting some air operations in Canada due to potential 5G interference risk is a concrete example of how new technologies can impact the aviation sector. While it does not imply a complete stop to USA-Canada flights, the restrictions and operational changes may cause inconveniences for passengers and require attention from all parties.
Preparing in advance, regularly monitoring your flight status, and maintaining constant contact with airlines are essential steps for a smooth journey.
Want to know if your next flight is at risk? Check your flight risk on FlightGuard.
