query: Do airlines raise the ticket price as flights fill up
positive_passages.docid: 11505
positive_passages.text: Flight tickets: buy two weeks before even during holiday seasons?
negative_passages.docid: 26642
negative_passages.text: Must airlines warn passengers about changes of required travel documents?
negative_passages.docid: 129826
negative_passages.text: Cost increase and suspend
negative_passages.docid: 59059
negative_passages.text: Why do some consulates ask you to purchase a flight ticket for a visa application?
negative_passages.docid: 116395
negative_passages.text: Avoiding the second leg of an international flight - different rates for a return ticket?
negative_passages.docid: 73835
negative_passages.text: What's the best day of the week to buy airfare?
negative_passages.docid: 30556
negative_passages.text: Is there a way to check that the conditions on your plane ticket are actually what your travel agent said they are?
negative_passages.docid: 123451
negative_passages.text: Price Optimization
negative_passages.docid: 76021
negative_passages.text: Binomial Distribution Problem - Airline Overbooking
negative_passages.docid: 7950
negative_passages.text: How can I book a flight plan found on Matrix Airfare Search?
negative_passages.docid: 146755
negative_passages.text: Is Spirit Airlines's $9 Fare Club worth it?
negative_passages.docid: 139680
negative_passages.text: What signal does being prepared to stay overnight on a Saturday give to the airlines?
negative_passages.docid: 37288
negative_passages.text: Why do return flight costs vary depending on the country of origin?
negative_passages.docid: 66137
negative_passages.text: Can I through check my bags on separate bookings (international flights)?
negative_passages.docid: 63153
negative_passages.text: Is it fair to buy a return ticket I know I will never use just because it's cheaper?
negative_passages.docid: 4427
negative_passages.text: If I know a flight is delayed can I turn up late for check-in at the airport?
negative_passages.docid: 59732
negative_passages.text: Last minute flight bookings - better to book online or at the airport?