Editor’s Note: This article was originally published in September 2016.

Story highlights

Travel hackers use tricks like "hidden city" tickets to get cheaper flights

Some rack up airline loyalty points via "manufactured spending" on credit cards

CNN  — 

Frequent fliers know that in the competitive world of modern airlines, it takes a skilled player to spot the good deals among the gimmicks.

In this episode of Business Traveller, we meet with bloggers and aviation insiders who’ve learned how to play the often risky game of travel hacking, uncovering the loopholes the airlines don’t want them to find.

In this game, the rewards can be great – but the stakes are high.

1. Hidden city ticketing

What is it? Say you want to fly from New York to Los Angeles, but a ticket from New York to San Diego via Los Angeles is much cheaper.

The daring traveler books the San Diego ticket, but only completes the Los Angeles leg of the trip.

The practice is called “hidden-city ticketing” and while it’s not a new phenomenon, software engineer Aktarer Zaman has created a search engine called Skiplagged specifically to find opportunities for “hidden city” trips.

It’s so unpopular with the aviation industry, in 2014 United Airlines sued Zaman – but the case was dropped.

Zaman remains unfazed.

“This is the inevitable,” he tells CNN. “Consumers are going to try to figure out the best way to do what they want.”

The catch: On a practical level, you have to travel hand luggage only, as checked-in baggage will go all the way to the final destination.

Much more seriously, skipping out portions of your itinerary violates fare rules on many airlines.

Frequent flier privileges could be revoked and miles confiscated.

2. Manufactured spending

10:02 - Source: CNN
The science behind airfare pricing

What is it? Blogger Alex Bachuwa has developed a method of earning air miles without actually flying them.

“I just apply for a lot of credit cards and I get a lot of points, and I use those points to go wherever I want to go.

“The banks have promotions on new products all the time. They offer 50,000, 100,000, 150,000 points promotions.

“They have a minimum amount you have to spend and once you spend that amount, the points go on your account and it’s time to start looking for flights.”

But as those minimum spends are far higher than the average person’s daily expenses, Bachuwa racks in the points through “manufactured spending.”

How does it work?

First get a credit card with rewards. Then buy a gift card and use the gift card to purchase a money order. You deposit the money order into your bank account and then use it to pay off the credit card.

The catch? “This is a frowned-upon business,” says Bachuwa. “It’s a way to spend without spending. Certain credit card companies now have in their terms and conditions, ‘Thou shalt not manufacture spend.’”

Not to mention that it’s seriously risky: Slip up in your calculations and you could get caught in spiraling debts.

Bachuwa remains confident in his lifestyle choice and reveals his secrets on his blog “The Points of Life.”

“Have you seen the places I’ve been and how I’ve flown? Of course it’s worth it!’

3. Frequent Travel University

What is it? US-based Frequent Traveler University organizes regular seminars to teach would-be travel hackers the latest tips, tricks and methods that they say will help their students travel cheaper, better and more creatively.

“We’re teaching people how to redeem those miles for trips that can cost $20,000 one way, how to utilize that elite status,” says FTU’s James Larounis, adding that they offer expert tips on airline alliances and Fifth Freedom routes – flights where an airline from one country has the right to operate between two other countries and which are often heavily discounted.

Some of the classes are so secret and the information so prized that they wouldn’t let our cameras in to film.

The catch: Banks and airlines get wise to the hackers’ tricks and then promptly shut them down.

“That’s why we host so many courses a year, because of this changing information,” says Larounis. “We’ve got repeat customers, year after year, session after session.”

4. Play your cards right

What is it? Stefan Krasowski, who blogs at RapidTravelChai, had these four tips to give us on the art of credit card shuffling.

1. “First, get as many cards as the banks will give you. Your credit scores will probably improve, if you manage them correctly.

2. “Get a hotel credit card. Many of those credit cards give you elite status with that hotel. Then you can turn around, go to other hotel chains and say, ‘I have the status, will you match me?’

3. “Get a credit card, usually a premium card, such as an Amex Platinum, a Citi Prestige, that has worldwide airport lounge access.

4. “Scale all this with your family members. If you’re traveling with a spouse or family member, each get hotel cards and then you’ll get double the benefits.

The catch: Mismanage your cards or drop behind on your payments and you’ll be left holding a losing hand.

5. Bid in a live auction

What is it? Open auctions for airline seats have been around for a while, but for a real fly-by-the-seat-of-your-pants experience, at Seatboost the bidding for the last remaining first-class seats begins just 90 minutes before takeoff.

It’s teamed up with Virgin America to auction off any free available premium seats on certain routes – but getting an airline to buy into the idea took some convincing.

That’s because airlines don’t want customers to expect that they’ll win in the auction, because then the customers might be reluctant to buy those premium seats beforehand.

“We are more positioned for a flier or guest who wants to give themselves a treat. If you’re used to flying first class, you’re not going to leave it to chance,” says Seatboost CEO Kevin Stamler.

The catch: Bid too high and you might win the upgrade but pay over the odds for your seat.

Bid too low and you miss out on your upgrade and remain stuck in economy.

Courtesy Lufthansa
Skytrax has revealed its 2016 top 10 best airlines. In 10th place is German carrier Lufthansa. It's successfully climbed two places to re-enter the top 10 list.
ROSLAN RAHMAN/AFP/Getty Images
Aussie airline Qantas, rarely absent from any top 10 list, moves up one place from 2015 to take ninth position.
ADEK BERRY/AFP/Getty Images
After making a debut in the top 10 airline chart last year, Taiwan's EVA Air climbed to eighth place this year. It was also named the best trans-Pacific airline.
Turkish Airline
Slightly down from last year (ranked fourth in 2015), Turkish Airlines was voted as the seventh best airline in the world. It's still the best airline in Europe, according to Skytrax.
Patrick Riviere/Getty Images/FILE
One of three major Middle East carriers in the top 10, Abu Dhabi's Etihad remains in sixth place this year.
KAZUHIRO NOGI/AFP/Getty Images
Japan's ANA All Nippon Airways takes the fifth spot. It also takes awards for the world's best airport services and Asia's best airline staff.
DALE de la REY/AFP/Getty Images
Hong Kong-based airline Cathay Pacific dropped from the third to fourth place this year.
Courtesy Singapore Airlines
Singapore Airlines, ranked third, is Asia's best airline. It also won the title for the best business class airline seat.
Qatar Airways
A 2015 winner, Qatar came second this year. It also has the world's best business class and business class lounge.
Courtesy Emirates
Emirates was named the best airline in this year's Skytrax awards -- a big leap from last year's fifth place. It's the fourth time the Dubai-based carrier has won the award.
AFP/Getty Images
SkyTrax also hands out a raft of other awards. AirAsia is named the world's best low-cost carrier. Its long-haul sister brand AirAsia X is said to have the best premium seat and cabin among budget airlines.
Norwegian Air
For the fourth successive year Norwegian Airline is voted the best low-cost airline in Europe. It's also the world's best low-cost airline for long haul flights.
Herb Lingl/aerialarchives.com/VIRGIN
"Virgin America continues dominating on the customer side in North America," said Edward Plaisted, Skytrax CEO. It won the awards for both best airline and best low-cost airline in North America.
GIANLUIGI GUERCIA/AFP/Getty Images/File
One of the oldest airlines in the world, South African Airways topped the best airlines chart in Africa. Other winners by regions include Finnair (Northern Europe), LAN Airlines (South America), Hainan Airlines (China) and Air Astana (Central Asia/India).
Star Alliance
With 27 member airlines, Star Alliance is the world's largest global airline alliance. It's named as the best airline alliance in the 2016 Skytrax awards.
courtesy Cathay Pacific
Cathay Pacific comes second to Etihad Airways in the category of world's best first class airlines, but its newly reopened first class lounge The Pier -- with a full-service bar -- came first.
Etihad Airways
It's hard to beat Etihad Airways when it comes to first class catering. The airline offers a chef to serve up in-flight meals to passengers.