Business class normally costs 5-10x what economy costs. It's mad. But people fly business class cheaply all the time. They're not rich (well, some of them are), they just know the tricks. I've personally booked business class flights for less than what other people paid for premium economy on the same plane. Here's how.

First: Why Bother?

Business class isn't just about champagne and fancy pyjamas. On a 12-hour overnight flight, having a lie-flat bed means you actually sleep. You land, you're functional, you can do things. In economy you land feeling like you've been stuffed in a cupboard. If you're flying for work, that lost recovery day costs your employer more than the fare difference.

For holidays, it means your trip starts when you board rather than the day after you land. I flew business to Cape Town last year and went straight to dinner from the airport feeling great. My mates who flew economy went straight to bed.

Plus, business class fares earn 150-300% of the flight distance in loyalty points. One business trip to Asia can earn you enough points for several short-haul economy flights later.

Error Fares

Airlines price millions of fares across thousands of routes in dozens of currencies. Sometimes they mess up. A currency conversion goes wrong, a fuel surcharge gets dropped, someone types the wrong number. And suddenly business class to Tokyo is £500 return instead of £3,000.

These mistakes happen more often than you'd think. The catch is they get corrected fast, often within a few hours. You need to book immediately when you see one.

Where to find them: follow Secret Flying, Jack's Flight Club, and various deal-alert accounts on Twitter/X. The FlyerTalk forums are good too, especially the "Mileage Run Deals" section. There are also Telegram and WhatsApp groups dedicated to flagging error fares in real-time.

Important: don't book non-refundable hotels or connecting flights based on an error fare until it's been ticketed. Airlines can and do cancel them. EU regulations offer some protection (they generally have to honour ticketed fares), but it's still a risk until you have that booking confirmation with a ticket number.

Ex-EU Positioning Flights

This is probably the most reliable way to save big on business class. Airlines price fares differently depending on where the journey starts. London to Bangkok in business on BA might be £3,200 return. But Bucharest to Bangkok on Qatar Airways? £1,100.

So you book a separate £40 Ryanair flight to Bucharest, take the £1,100 business class from there, and save over £2,000. Even if you add a £30 hotel near Bucharest airport, you're still massively ahead.

The best departure cities change depending on the airline and destination, but these are consistently cheap: Bucharest, Sofia, Warsaw, Belgrade, Cairo, Colombo, and sometimes Stockholm or Helsinki.

You do need to be a bit flexible. The cheap fares are from specific cities, so you're adding a positioning flight and possibly an overnight stay. But for savings of £1,000-2,000+, most people find it's well worth the minor hassle.

Quick tip: use Google Flights and set the origin to a whole country or region. It'll show you fares from multiple airports so you can spot the cheapest departure point quickly.

Airline Sales

Airlines run business class sales way more than people realise. Qatar Airways does big global sales 3-4 times a year. BA does Club World sales regularly. Singapore Airlines runs promotions to specific destinations throughout the year.

These aren't error fares, they're deliberate promotions. Usually 30-50% off the normal price. Not as dramatic as an error fare, but way more predictable and they never get cancelled.

To catch them: sign up for newsletters from every airline you'd consider flying. Join their loyalty programmes too (it's free). Some sales are only emailed to programme members. Set fare alerts on Google Flights for your dream routes.

Also worth knowing: airlines sometimes send "win-back" offers to loyalty programme members who haven't flown in a while. If you've got an old Emirates Skywards account gathering dust, you might randomly get a 40% off business class email one day.

Points Redemptions

This is the holy grail. Book a business class flight worth £3,000-4,000 using 80,000-100,000 loyalty points. If you've been earning through flying and credit cards (see our guide on maximising points), this is where it all pays off.

The trick is flexibility. Award seats are limited, and the good ones go fast. Your best bet is either booking really far ahead (10-12 months) when the calendar first opens, or checking close to departure when airlines release unsold seats as awards.

Also look at partner airline awards. Booking Qatar Airways business class through BA Avios often costs significantly fewer points than booking through Qatar's own programme. The same flight, the same seat, fewer points. Check multiple programmes before you redeem.

Upgrade Bids and Premium Economy Stepping Stones

Several airlines let you bid for upgrades after booking. Virgin Atlantic, Etihad, Air New Zealand, and others have systems where you submit a cash bid for a business class upgrade on your economy or premium economy ticket. Check forums for what successful bids look like on your route, then bid in that range.

Mid-week flights in off-peak seasons have the best upgrade odds since business class is more likely to have empty seats.

If you can't get business class, premium economy is a solid fallback. It costs 1.5-2.5x economy rather than 5-10x, and on some airlines, PE passengers get first priority for complimentary upgrades when business has empty seats. Even without the upgrade, the bigger seat, better food, and extra legroom make long flights much more bearable.

When to Book

Business fares are most expensive 2-4 weeks out (when last-minute business travellers are booking). The sweet spot for published fares is usually 3-6 months ahead. But keep an eye on the 1-2 week window before departure too, as airlines sometimes slash prices on unsold premium seats.

Tuesday and Wednesday departures are almost always cheaper than Sunday/Monday. January, February, and November are the cheapest months. Avoid June-August and Christmas.

Compare Everything

Different airlines price the same route wildly differently. London to Hong Kong could be £4,500 on one carrier and £2,200 on another with perfectly good service. If you're only checking one airline, you're probably overpaying. That's literally why we built The Arb Club: to show you all the options side by side with the actual value of each one.