Change of gauge (aviation)

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In

A Y-type change of gauge is one a given flight being transferred into two other flights with different destinations and has two flight numbers.[4] For example, flight number 100 may fly Boston-Paris-Athens, and flight number 200 may fly Boston–Paris–Rome, with the Boston–Paris leg being on the same aircraft in both cases.

Some passengers, such as persons with disabilities or who otherwise are not disposed to make a connection, prefer to book on flights without a change of aircraft. However, passengers could incorrectly assume that if they are traveling on a single flight number they will not be required to change planes. Single flight numbers are typically used for an originating domestic to international destination or the return (e.g., San Francisco to Chicago to Paris).^[1]

United States

As of 2001^[update], six U.S. based airlines, being American Airlines, Continental Airlines, Delta Air Lines, Northwest Airlines, US Airways, and United Airlines, had flights that featured a change of gauge. Title 14 CFR Part 258, "Disclosure of Change of Gauge Services," requires air carriers to disclose to passengers, travelling on a single flight number, if they will be required to change planes during the flight. Part 258 requires the air carriers to inform the consumer that there is a change of gauge in the itinerary before the reservation is made.^[5]

See also

• Direct flight
• Codeshare agreement

References

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