Airline Alliances Explained: Star Alliance, Oneworld, and SkyTeam

By Bryce Casson, Founder · Cardocrat · Updated July 2026

The short answer: There are three global airline alliances, and understanding them is most of what makes points and status click. Star Alliance is the biggest at about 26 airlines, SkyTeam has around 18, and Oneworld about 15. The rule that matters is simple: inside an alliance, you can use one member’s miles to book a seat on any other member, and status you earn in one program is honored across all of them. What the alliances do not do is talk to each other, so Star miles and Star status are useless on a Oneworld flight. The one thing that crosses those lines is your transferable bank points, which can feed all three. Here is how the pieces fit together.

The three alliances, and who is in them

Each alliance is a club of airlines that agree to recognize each other’s miles and status. You mostly care about which one your home airport and favorite airline sit in, because that is the network you will actually earn and burn across. The lineups shift more than people expect, SAS left Star Alliance for SkyTeam in 2024, ITA Airways joined Star Alliance in 2026, and Hawaiian folded into Oneworld through its Alaska merger, so it is worth a fresh look.

Alliance	Airlines	Marquee members	Main US carrier
Star Alliance	~26	United, Lufthansa, Air Canada, ANA, Singapore, Turkish	United
Oneworld	~15	American, British Airways, Qatar, Cathay Pacific, Qantas, Japan Airlines, Alaska	American and Alaska
SkyTeam	~18	Delta, Air France, KLM, Korean Air, Virgin Atlantic, Aeromexico	Delta

If you fly United you live in Star Alliance, American or Alaska puts you in Oneworld, and Delta anchors SkyTeam. That single fact drives most of the earning and redemption decisions below.

Redemptions: any member’s miles book any member

The first payoff of an alliance is that miles are interchangeable. You can spend United miles to fly ANA, American miles to fly Qatar, or Air France miles to fly Delta, all within the same alliance. That matters for price, because different member programs charge wildly different amounts for the exact same seat. The trick to cheap awards is booking through whichever member has the lowest chart for that route, not defaulting to the airline you are actually flying. ANA and Avianca often price Star Alliance business for far less than United, Alaska and Cathay undercut on Oneworld premium cabins, and Virgin Atlantic or Flying Blue can beat Delta’s own numbers on SkyTeam.

We break down the best program to book each alliance by, plus the standout cabins to target, in how to book Star Alliance, how to book Oneworld, and how to book SkyTeam with points. The theme across all three is the same: the alliance is what lets a cheaper partner sell you the seat.

Status carries across the whole alliance, which is a built-in status match

The second payoff is status. When you earn elite status in one program, the alliance assigns you a tier that every other member airline honors. Fly enough on United to make Star Alliance Gold and you get lounge access and priority boarding on Lufthansa, ANA, and Singapore too. That is effectively a status match baked into the alliance, and it is why the tier names matter more than any single airline’s branding. Each alliance has its own ladder, and they line up roughly like this.

What you get	Star Alliance	Oneworld	SkyTeam
Priority check-in, preferred seating, waitlist priority	Silver	Ruby	Elite
Adds lounge access, priority boarding, extra and priority baggage	Gold	Sapphire	Elite Plus
Adds first-class lounges and fast-track security	None	Emerald	None

The one to remember is the lounge tier, Star Gold, Oneworld Sapphire, or SkyTeam Elite Plus, because that is where alliance status starts feeling premium. Oneworld is the only alliance with a third tier, Emerald, which adds first-class lounges and fast-track lanes. This is also how hotel and card status can spill into the air, for example the new Marriott and JAL status match hands top Marriott elites Oneworld Ruby. See how airline elite status works now for what these perks are really worth.

How the alliances intertwine, and where they do not

Here is the honest boundary: the three alliances do not cooperate with each other. Star Alliance miles buy nothing on a Oneworld airline, and SkyTeam status gets you no lounge on a Star Alliance flight. They are three separate walled gardens. Two things cross those walls anyway. The first is non-alliance partnerships, individual deals between airlines that ignore the alliance map, like Alaska’s partners beyond Oneworld, Qatar’s tie-up with JetBlue, or Emirates, which sits in no alliance at all but partners widely. The second, and the one that matters most for a card person, is your transferable bank points.

Points from Amex, Chase, Citi, and Capital One transfer to partners spread across all three alliances plus the non-alliance airlines, so a single stash of flexible points can book Star Alliance one month and Oneworld the next. That is the real way to sit above the alliance system rather than inside one lane of it. See transferable points explained and airline transfer partners explained for which bank points reach which alliance.

Which alliance should you care about?

For status and everyday earning, the answer is set by geography: pick the alliance your home airport and preferred airline belong to, since that is where you will fly enough to earn and use benefits. A United hub makes Star Alliance obvious, an American or Alaska base points to Oneworld, and a Delta city means SkyTeam. For redemptions, though, you do not have to choose, because flexible bank points let you book all three depending on where the best award happens to be. Earn status in your home alliance, keep your points flexible, and you get the best of both. Run your spending through the calculator to see which cards feed the alliance you fly.

Frequently asked questions

How many airline alliances are there?

Three: Star Alliance, which is the largest at about 26 airlines, SkyTeam at around 18, and Oneworld at about 15. A handful of major airlines, such as Emirates, belong to no alliance and partner individually instead.

Can I use miles from one alliance on another alliance’s airline?

No. The three alliances do not cross over, so Star Alliance miles cannot book a Oneworld flight and vice versa. What does cross the lines is transferable bank points, which move to partner programs in all three alliances, along with a few non-alliance partnerships between individual airlines.

Does my elite status work on other airlines in my alliance?

Yes, and that is the point of an alliance. Status you earn in one program is assigned an alliance tier that every member airline honors, so Star Alliance Gold earned on United gets you lounge access and priority boarding on Lufthansa or ANA. It works like a status match built into the alliance.

What is the equivalent of Star Alliance Gold in the other alliances?

Roughly Oneworld Sapphire and SkyTeam Elite Plus. Those are the lounge-access tiers in each alliance. Oneworld also has a higher tier, Emerald, that adds first-class lounges and fast-track security, which Star Alliance and SkyTeam do not match with a separate level.

Which airline alliance is best?

The one your home airport and favorite airline sit in, because that is where you will actually earn status and use it. Star Alliance has the widest global reach, Oneworld has strong premium cabins and a third elite tier, and SkyTeam pairs Delta with Air France, KLM, and Virgin Atlantic. For redemptions, flexible points let you use all three.