query: Why are flights from some countries much cheaper than others?
positive_passages.docid: 14298
positive_passages.text: How do airlines determine ticket prices?
negative_passages.docid: 56457
negative_passages.text: Traveling without paying lodging fees in America
negative_passages.docid: 82538
negative_passages.text: Why are American-style options worth more than European-style options?
negative_passages.docid: 70652
negative_passages.text: What do I lose by not booking flights through a travel agent?
negative_passages.docid: 61272
negative_passages.text: Booking travel tickets for visa without paying?
negative_passages.docid: 34342
negative_passages.text: Does flying east to west generally take longer than west to east in America?
negative_passages.docid: 6053
negative_passages.text: When traveling to a country with a different currency, how should you take your money?
negative_passages.docid: 87927
negative_passages.text: What are the cheapest ways to get a flight booking out of China needed for my visa application from here in Mexico City?
negative_passages.docid: 80957
negative_passages.text: Information on month old flights
negative_passages.docid: 123131
negative_passages.text: Historical airfare prices to understand which month has the lowest airfare
negative_passages.docid: 22635
negative_passages.text: Historical flight data outside of the USA?
negative_passages.docid: 66819
negative_passages.text: Explain travel times and distances on flight
negative_passages.docid: 11621
negative_passages.text: How can I find the cheapest prepaid SIM card for a given country?
negative_passages.docid: 46636
negative_passages.text: Can I get better prices for items by trading with different people
negative_passages.docid: 117402
negative_passages.text: The airline allowed us to travel to our destination without checking our visas. Who is at fault for the incurred expenses?
negative_passages.docid: 61768
negative_passages.text: Is there a flight search engine that combines flights from different airlines?
negative_passages.docid: 144041
negative_passages.text: Can I use a one-way ticket to come to the UK? Or do I need to show a return ticket to be able to get in?