CHICAGO- United Airlines (UA) Flight 108 from Washington Dulles (IAD) to Munich Airport (MUC) diverted to Boston (BOS) on Monday, August 10, 2026, after damage affected the outer layer of the aircraft’s windshield.
The Boeing 787-8 landed safely, and United arranged hotel accommodation, meal vouchers, and rebooking support for the affected passengers. The flight’s scheduled IAD departure is 5:30 PM ET, with a scheduled 7:45 AM arrival in Munich based on the published schedule.
The diversion came during a wider disruption affecting major US airlines, with United reporting 64 cancellations and 1,230 delays on August 10.
Washington Dulles recorded 67 cancellations overall, while United had 2 canceled flights and 129 delays at the airport, according to the source data provided for this report.
United Flight 108 Diverted Due to Windshield Damage
United Flight UA 108 was operating its scheduled Washington Dulles to Munich service when the aircraft experienced damage to the outer layer of its windshield.
United confirmed the incident and said the windshield has a multilayer design intended to maintain the safety of customers and crew when damage affects an outer layer.
The aircraft diverted to Boston rather than continue the transatlantic journey. Passengers and crew landed safely at Boston Logan International Airport, and the original service was subsequently canceled.
A passenger account published after the incident also described the outer windshield pane shattering shortly before the aircraft was due to cross the Atlantic.
| Flight detail | Information |
|---|---|
| Airline | United Airlines (UA) |
| Flight number | UA108 |
| Origin | Washington Dulles International Airport (IAD) |
| Scheduled destination | Munich Airport (MUC) |
| Diversion airport | Boston Logan International Airport (BOS) |
| Aircraft | Boeing 787-8 Dreamliner |
| Scheduled frequency | Daily |
| Scheduled flight time | About 8 hours 15 minutes |
| Passengers | 175 |
| Crew | 11 |
Published schedule data lists UA108 as a Boeing 787-8 service from Dulles to Munich with a scheduled departure around 5:30 PM and an arrival around 7:45 AM the following day.
Passengers Received Hotels, Meals, Rebooking Support
United Flight 108 carried 175 passengers and 11 crew members. After the diversion and cancellation, the airline accommodated the affected travelers with hotels and meal vouchers and arranged alternative travel.
The passenger assistance effort took place while United was also handling a high volume of other delays and cancellations across its network.
That wider disruption limited the availability of replacement flights and increased the airline’s rebooking workload.
Dulles Recorded 67 Cancellations
Washington Dulles International Airport had 67 canceled flights on Monday, including the United service to Munich.
United recorded two cancellations and 129 delays at Dulles, according to the FlightAware figures in the source material.
The Dulles figures were part of a broader network disruption that affected several major US airports and airlines.
The UA108 cancellation therefore occurred alongside substantial operational pressure rather than as an isolated scheduling issue.
United’s 64 Cancellations and 1,230 Delays
United Airlines reported 64 cancellations on August 10, making it the second-highest carrier by cancellations among the 4 major US airlines listed in the source data.
The reported cancellation totals were:
| Airline | Cancellations on August 10 |
|---|---|
| American Airlines | 82 |
| United Airlines | 64 |
| Delta Air Lines | 63 |
| Southwest Airlines | 49 |
United also recorded 1,230 delays, affecting 36% of its flights that day. The figures show that the airline faced a much broader network reliability problem at the same time as the UA108 aircraft issue.
Chicago O’Hare Ground Stops
United also experienced operational problems at Chicago O’Hare International Airport (ORD), one of its major hubs.
The source material states that multiple ground stops affected the airport during the preceding 48 hours as thunderstorms disrupted operations.
Because United operates a large network through O’Hare, weather-related restrictions at the hub can affect aircraft rotations, crew positioning, and connecting itineraries across the wider system.
The disruption added to the rebooking and schedule-recovery workload the airline was already managing after the Dulles diversion.
United Offered Flexible Rebookings
United introduced flexible rebooking options for customers affected by the weather-related disruption.
Under the travel-alert terms provided in the source material, eligible customers could reschedule to another United flight while avoiding change fees and fare differences.
The conditions required the new flight to depart between August 9 and August 14, 2026, remain in the same cabin, and operate between the same cities as the original booking.
The airline’s stated options were intended to give affected passengers more flexibility while the network recovered from weather-related cancellations and delays.
Another Mayday Emergency Occurred
The UA108 diversion followed another aviation emergency involving a Swiss International Airlines flight bound for Boston. The aircraft diverted to Dublin Airport after a power bank caught fire.
The 2 events involved different airlines and aircraft, and there is no indication that the Swiss flight caused or was directly connected to the United diversion.
The incident is relevant only as part of the broader sequence of aviation disruptions surrounding the same period.
UA108 Status
The source material’s Tuesday morning update listed United with 11 cancellations and 112 delays at that point in the day.
It also showed UA108 scheduled to operate again at 5:30 PM ET, with the next Munich arrival planned for 7:45 AM on August 12.
Because flight schedules and operational statuses can change during the day, those figures represent the status available in that update rather than a permanent operating schedule.
Published schedule data likewise lists the IAD-MUC service at approximately those departure and arrival times.
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