Choosing between the biggest airlines in China should be simple. In practice, it is not. On paper, China Southern and China Eastern are closely matched giants, with fleets of 652 and 617 aircraft respectively. But the real test is not fleet size. It is what happens at check-in, during boarding, in the cabin, and when something goes wrong.

On a domestic route from Chongqing to Beijing, the comparison became more interesting than expected. China Eastern operated the planned flight in business class, while China Southern never got the chance to prove itself after a last-minute downgrade pushed a rebooking onto Hainan Airlines instead. That turned this into a 3-airline comparison, and a very useful one for anyone planning a China domestic flight.

First impressions: check-in matters more than airlines admit

China Eastern did not get off to a perfect start. At check-in, passport details had to be added again at a separate counter despite already being entered online. It was not a disaster, but it was clunky. There was also the usual airport frustration of checked baggage being flagged and returned because something inside was not allowed, most likely a battery.

Even so, the overall China Eastern ground experience was manageable. Not slick, but not catastrophic either.

China Southern was a different story altogether. A business class booking was downgraded to economy at the airport without prior notice. That is the sort of problem that immediately changes the entire perception of an airline. Worse still, the initial compensation offered was described as far too low to be taken seriously.

Instead of accepting a poor outcome, the booking was refunded in full and replaced with a Hainan Airlines alternative departing at roughly the same time. Financially, it was a much better result:

• The original China Southern booking cost about $2,600 for 3 people, with 2 in business and 1 in economy.

• The Hainan replacement came to about $1,200 for all 3 in business class.

That is not just a better recovery. It is a reminder that airline value is not only about onboard comfort. Reliability and how an airline handles disruption count for a lot.

Security and boarding in China: a couple of useful reminders

There was no time for a lounge stop, and the security process offered a practical lesson. Power banks need to be carried onboard and clearly marked. If the required sticker or printed information is missing, there is a very good chance it will be confiscated.

That is worth remembering for anyone flying within China, particularly on domestic sectors where security checks can be uncompromising.

One interesting detail during boarding on China Eastern was the priority policy. In addition to military priority boarding, firefighters were also given priority. That is not something commonly seen elsewhere and stood out immediately.

China Eastern business class: better than expected on a narrow-body aircraft

The onboard product on China Eastern was a pleasant surprise. This was not a long-haul premium cabin or a flashy flagship aircraft. It was a narrow-body jet with a 2-2 business class layout, the kind of setup that can feel average very quickly if the cabin is tired or the legroom is tight.

That was not the case here.

The cabin looked sleek and modern, and even in the second row there was plenty of legroom. For a short domestic flight in China, it was entirely adequate and visually sharper than expected.

Before takeoff, there was a welcome drink, followed by drink orders taken for once the seatbelt sign was turned off. The airline also offered a small wine list, including Australian Chardonnay and Shiraz Cabernet, alongside Chinese beers and soft drinks.

The details mattered here. Service felt thoughtful rather than rushed. One especially nice touch was that the crew served passengers in pairs. Food and drinks were presented together in a coordinated way, creating a more polished and attentive feeling than is often found on a short domestic hop.

The meal: the weakest part of the China Eastern experience

Where China Eastern stumbled was the food.

Lunch was presented around 45 minutes into the flight and described as a hamburger, though it did not look much like one. It came with a plastic glove to eat it with, which was probably sensible given the amount of sauce involved. The problem was not presentation alone. The flavors were odd, with an overly sweet white sauce that felt closer to dessert than lunch.

The meal scored only 4 out of 10, and that feels fair based on the description. What made the choice stranger was that this was a Western-style meal on a Chinese airline, on a route likely to be dominated by local passengers. The reaction in the cabin reinforced the point. Several Chinese passengers in business class apparently left the meal untouched.

That raises a broader question many airlines still struggle with: should catering aim for familiarity or novelty? On short-haul domestic routes, familiarity usually wins. A good regional hot meal would likely have landed far better than an awkward attempt at a burger.

Service: where China Eastern really earned its praise

If the meal was disappointing, the cabin crew were the exact opposite.

Service on China Eastern was the standout feature of the flight. The crew were described as fantastic, warm, enthusiastic, and genuinely polished in how they handled the cabin. Even with limited English, they outperformed crews on much larger airlines and in more premium cabins.

That is the part of the China Eastern review that matters most. Hardware gets attention, but people make the difference. On a flight of just 2 hours and 10 minutes, excellent service can easily outweigh a mediocre lunch.

China Eastern’s strengths on this route were clear:

• Modern-looking cabin

• Comfortable 2-2 business class seating

• Pre-departure drinks and decent beverage options

• Outstanding crew service

Its main weakness was equally clear:

• A poor and poorly judged meal choice

What happened with Hainan Airlines after the China Southern downgrade

Although this comparison began as China Southern vs China Eastern, the most revealing contrast came from the replacement flight on Hainan Airlines.

Hainan operated a wide-body aircraft with a 2-2-2 business class cabin, and crucially, the seats were fully lie-flat. On a short domestic route, that is a real bonus and not something that can be taken for granted.

There was no meal service to compare directly, and there was no printed wine or drinks menu, though alcoholic beverages were available. But the cabin and seat made a strong impression, and the staff were also described as lovely. Overall, there was nothing to complain about.

That matters because Hainan did not just rescue a disrupted journey. It delivered a better hard product at a much lower price.

For anyone asking which is the best airline in China for domestic premium travel, Hainan made a compelling case here. It may not have been the original contender, but it ended up being the clear winner.

China Southern: judged more by process than product

It is only fair to acknowledge that China Southern never really had the chance to be reviewed in the air on this trip. There was no cabin experience, no seat analysis, and no meal comparison because the we never ended up flying with them.

But that does not let the airline off the hook.

Airlines are judged by the whole experience, not just what happens once the aircraft door closes. A last-minute downgrade from business to economy, with no advance notice, is a major service failure. Offering inadequate compensation only makes it worse.

So while this was not a full China Southern review in the traditional sense, the available evidence was still enough to leave a poor impression. For many travelers, that kind of ground-side issue is reason enough to avoid an airline entirely.

Arrival in Beijing: a beautiful airport, slow bags

Arrival was into Beijing Daxing, one of the city’s 2 airports and one of the most striking airport terminals anywhere. The architecture impressed immediately.

The weak point was baggage delivery. More than 30 minutes after landing, bags were still not on the belt, which dulled the arrival experience a little. Ground transport was also noticeably more expensive than in Chongqing, a reminder that Beijing comes with a different price level.

Final ranking: Hainan first, China Eastern second, China Southern last

Based on this China airlines comparison, the final ranking was straightforward.

1. Hainan Airlines

Best overall value, the most spacious cabin, and a fully lie-flat business class seat. Service was strong as well. On this route, Hainan was the standout option.

2. China Eastern

A very solid domestic business class experience. The cabin was comfortable, and the crew were excellent. The meal let it down, but not enough to overshadow an otherwise positive flight.

3. China Southern

Ranked last because of the downgrade issue and poor handling at check-in. Even without a full onboard review, that sort of disruption leaves a lasting negative impression.

If the goal is simply a dependable and pleasant domestic flight in China, China Eastern did absolutely nothing wrong in the air and delivered excellent service. If the choice includes Hainan at a comparable fare, though, Hainan would be the smarter pick based on this experience.

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More helpful travel resources

If you’re planning ahead for your China domestic flights, it can help to keep a few practical details in mind—like what to expect at check-in, boarding, and security.

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