Budget airline Ryanair said its Web site and mobile apps will be halted this week by implementing a "system upgrade" for 12 hours.
The upgrade takes place between 5:00 pm on Wednesday and 5:00 am on Thursday. a During this period, the airline's online check-in service is not available.
Ryanair told E-mail and SMS text to all customers who booked a trip on Wednesday, November and Thursday, and told them to check-in online on Tuesday before the website closed.
No new reservations or changes to existing flights are possible during this time. Ryanair apologizes for any inconvenience this upgrade has caused.
Ryanair spokesman Robin Kiely said the airline is sorry for the inconvenience to the passengers.
Separately, Ryanair's passenger traffic has risen 7 percent in October to 12.6 million, despite hundreds of kilometers of cancellations over the past few months.
Ryanair said the load factor, which indicates how much airplanes are comfortable, reached 96% during this period.
Ryanair owns 75% of Laudamotion, a low-cost airline founded by former Formula One champion Niki Lauda.
When the number of passengers carried by Lauda was taken into consideration, total traffic increased 13% over October to 11.1%. Lauda traffic has a load of 89% with 500,000 customers.
Ryanair spokesman Kenny Jacobs said 80 percent of the flights of the month arrived at their destination.
"In October, a five-day airport air strike at Brussels Zaventem forced more than 300 flights to be canceled. [such as] Winter storms, and shortages of air traffic controllers in Britain, Germany and France. "
"We have operated more than 71,400 regular flights and more than 80% of these flights have arrived on time."