I flew both business class and economy on Saudi Arabia's state-owned airline Saudia. Here's what it was like.

I arrived at London's Heathrow Airport well ahead of my 7:10 p.m. departure, checked in my bag, and headed to the departure gate.

I got to use the priority lane, which was wasted on me.

I was at the airport so early there were no lines for the regular desk anyway.

My flight was departing from Heathrow Terminal 4, the airport's main terminal for flights to the Middle East.

I had hoped to visit a business class lounge — which is why I got to the airport early in the first place — but didn't find one at Terminal 4.

Finally, it was time to board my flight, which was on a 381-seater Boeing 777.

Saudia has a total of 147 aircraft in its fleet. It has planes from the Boeing 777 I was flying on, to the 144-seat Airbus A320.

I got to my seat and was blown away. I didn't even have enough baggage to fill all the surfaces.

Here's the view from the aisle.

As a 6'1 man used to economy legroom, I was disconcerted by the gaping black hole beneath me, which felt like it could be harboring some form of bedtime story goblin.

Oh well, nothing for it.

If there were any screaming children near me, I didn't have to worry. Saudia has its own branded over-ear headphones for business-class flyers.

The airline also hands out pretty decent in-ear buds for economy-class flyers.

Sadly, they weren't free. But they were great for in-flight entertainment.

I was offered a drink by a senior cabin crew member called Katarina, who was assigned to me and three others in my section. I had to do a double take — everything is free in business class, apparently.

To my right was the seat control. The bottom left icon confused me, until I realized it triggered the chair's massage feature.

Above the display I found a convenient hidey hole for my effects.

It was also very easy to leave things behind in there. RIP my eye mask.

Time to buckle up.

I was handed a Missoni gift bag, exclusive to Saudia's business class passengers.

It contained a comb, dental pack, screen lens wipe, creams, an eye mask, and a pair of socks for the flight. It's impossible to have too many socks.

I also got handed a hot towel. The airline also offered them in economy class.

I took a look at the safety instructions — written in English and Arabic — wondering if there was any variation in safety protocol for people in business class. Nope.

Another good thing about business class is that you can get good privacy in the upright seat position, thanks to the extended sideboard along the aisle.

I then got handed the business-class menu. The two main offerings were an Arabic and Mediterranean set menu, and a huge choice of deserts and cheeses. It was 11 p.m. London time by this point, so I chose not to indulge a second dinner.

Pork is haram in Saudi Arabia, so there were no pork products on the menu.

"Time for a beer," I thought, before remembering that alcohol is banned in Saudi Arabia, and therefore not sold on government planes. A tea then.

Moments later, the in-flight safety video started. It starred a Saudi man in a traditional thawb and keffiyeh, apparently watching a sign language interpreter levitate his briefcase into the overhead locker.

Before takeoff, a prayer attributed to the prophet Mohammed sounded through the intercom and the text was shown on screen.

It was quite reassuring, and I heard it on all flights I took in the kingdom.

After we took off, a wide selection of movies became available on the entertainment system. My first choice was "White House Down."

My movie choice seemed fitting as I feared the US and Iran would be at war by the time we landed in Riyadh.

I switched out and opted for something more relaxing, like "Toy Story."

After I finished all my movies, I had less than five hours left until we touched down in Riyadh. I tried to get some sleep.

But first, some peppermint tea and shortbread to wind me down.

Touchdown in Riyadh. Security was segregated at Riyadh's King Khalid Airport.

Not all the country's airports segregate men and women at their security checks, however.

I was almost immediately due catch a connecting flight with Saudia to AlUla, in the north of the country. I grabbed the only available sustenance — a wrap from Starbucks — and pressed on.

After my six-hour flight from London to Riyadh I was very glad to see the connection was only 100 minutes long.

Saudia has hubs in Jeddah, Medina, Riyadh, and Dammam and serves airports as far away as Los Angeles and Beijing.

I was forewarned that Saudia are terrible at losing your luggage, but luckily my bags made it onto the plane, and were there to meet me at the other end.

I was booked to fly economy to AlUla, which suited me as I was keen to check out any disparity in service. Here I am in my much more cramped seat.

This plane was an Airbus A333.

Ah, back to normality ...

... though luckily for me, the plane was very empty. I eyed up a row to stretch out on.

Great minds think alike.

I was glad to see there was no variation in the in-flight entertainment system in business class and economy.

Here's the supplication prayer by the Prophet Mohammed played out toward the beginning of the flight again.

Halfway through the flight, flight attendants handed out cheese-and-egg sandwiches and drinks. I opted for a water.

It wasn't much, but it was free, and better than I was used to from flying EasyJet and Ryanair in Europe.

I tried watching "White House Down" again, but halfway through I opted to just watch the plane's interactive map instead.

I noticed that Saudia had added the Neom mega-city region, the kingdom's not-yet-completed $500 billion project that's set to have flying taxis, state-of-the-art education, and futuristic living.

Source: Business Insider

And, less than two hours later, we made it. I left feeling very extremely satisfied — Saudia's service was great, and both my journeys went without incident.

In fact, my flights were so good that I left feeling business class — my London-Riyadh flight was worth $4,500 one way! — wasn't worth it. Don't expect to see me up there for a while.