250.1—Definitions.

Airport means the airport at which the direct or connecting flight, on which the passenger holds confirmed reserved space, is planned to arrive or some other airport serving the same metropolitan area, provided that transportation to the other airport is accepted (i.e., used) by the passenger.
Carrier means: (1) a direct air carrier, except a helicopter operator, holding a certificate issued by the Department of Transportation pursuant to 49 U.S.C. 41102 or that has been found fit to conduct commuter operations under 49 U.S.C. 41738, or an exemption from 49 U.S.C. 41102, authorizing the scheduled transportation of persons; or (2) a foreign air carrier holding a permit issued by the Department pursuant to 49 U.S.C. 41302, or an exemption from that provision, authorizing the scheduled foreign air transportation of persons.
Comparable air transportation means transportation provided to passengers at no extra cost by a carrier as defined above.
Confirmed reserved space, means space on a specific date and on a specific flight and class of service of a carrier which has been requested by a passenger and which the carrier or its agent has verified, by appropriate notation on the ticket or in any other manner provided therefor by the carrier, as being reserved for the accommodation of the passenger.
Stopover means a deliberate interruption of a journey by the passenger, scheduled to exceed 4 hours, at a point between the place of departure and the final destination.
Sum of the values of the remaining flight coupons means the sum of the applicable one-way fares, including any surcharges and air transportation taxes, less any applicable discounts.

Code of Federal Regulations

[ER-1306, 47 FR 52985, Nov. 24, 1982, as amended by ER-1337, 48 FR 29680, June 28, 1983; 68 FR 52836, Sept. 8, 2003; Doc. No. DOT- OST-01-9325, 73 FR 21033, Apr. 18, 2008]