Oneworld is one of the world's leading airline alliances, featuring member airlines like Cathay Pacific, Japan Airlines, and British Airways, which are some of the favorites among travelers. Whether you're dreaming of heading off to Tokyo, Hong Kong, or Europe, or hoping to redeem credit card points for free flights and access exclusive airport lounges, mastering the ins and outs of Oneworld is absolutely key to elevating your travel experience. This Trip.com guide will introduce you to Oneworld and help you effortlessly become a travel pro!
What is Oneworld?
Oneworld, founded in 1999, ranks alongside Star Alliance and SkyTeam as one of the world’s three major airline alliances. While it has fewer member airlines than Star Alliance, its members are known for their exceptional quality, and its network spans major business and leisure cities worldwide, covering more than 900 destinations. For U.S. travelers, Oneworld’s biggest advantage lies in having American Airlines and Alaska Airlines. This means that as long as you hold membership or miles with any Oneworld member airline, you can enjoy cross-airline benefits throughout the entire alliance network.
Cathay Pacific
Which Airlines are Part of Oneworld Alliance?
As of 2025, Oneworld alliance has 13 full member airlines. Below are some of the major members that travelers most frequently encounter:
- American Airlines: Providing a North American route network, and miles can be redeemed without fuel surcharges.
- Alaska Airlines: Especially attractive for west coast pacific region travelers.
- British Airways: Its Avios frequent flyer program is a great choice for its redemption policies on short flights.
- Cathay Pacific: A familiar favorite, this airline offers many flights around the world, while making seamless connections to Europe, North America, and Australia.
- Japan Airlines: Renowned for its exceptional service, JAL is a top choice for travelers going to Japan.
- Malaysia Airlines: A great and easy choice for connecting flights to Southeast Asia or Australia while offering incredible value!
- Qantas Airways: The flagship airline of Australia, covering destinations all over the Oceania Region.
- Qatar Airways: The best choice to choose for ultimate leisure and comfort, winning World's Best Airline nine times!
- Finnair: The largest airline in Finland, covering all domestic and international flights from and to Finland.
- Royal Jordanian Airlines: The flagship airline of Jordan, operating international flights accross four continents.
- Iberia (Spain's national airline): Operating all sorts of flights from Madrid, a great choice for travelers near Spain.
- SriLankan Airlines: Its operations are not as big as other major airlines but it is the flagship airline of SriLanka
- Royal Air Maroc: The largest airline of Morroco, operations include all domestic and international flights.
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How to Use Oneworld Benefits
You just need to register with any member airline’s Frequent Flyer Program, and you can immediately join the Oneworld alliance.
- Pick your frequent flyer program (US travelers usually start with AAdvantage or Alaska’s program).
- Add your frequent flyer number to every booking (including partner airlines).
- Before your trip, verify lounge access using Oneworld’s lounge policy especially if you’re flying domestically in the US or short flights to North America itineraries.
At the airport: use priority check-in lanes, priority boarding, and watch for priority baggage tags where offered.
Once you're registered, remember to enter your membership number whenever you fly with any airline in the alliance to earn miles and points.
Oneworld Alliance Membership Program
Oneworld standardizes each airline’s frequent flyer membership tiers into three color levels, making it easy to recognize your benefits across different carriers. This is crucial for elite travelers—especially when it comes to lounge access.
Oneworld status levels | Corresponding Cathay Pacific tier | Corresponding Japan Airlines Tier | Essential Core Benefits |
Emerald (Emerald) | Diamond Card | JMB Diamond / JGC Premier | First-class lounge access, extra baggage allowance, dedicated security lane, priority boarding |
Sapphire (Sapphire) | Gold Card | JMB Sapphire / JGC | Business class lounge, extra baggage, priority boarding, priority seat selection |
Ruby (Ruby) | Silver Card | JMB Crystal | Business Class check-in counters and priority waitlisting |
🚀 Quick upgrade hack: If you want to track your status in the Oneworld alliance, keep an eye on American Airlines (AA) for occasional Status Match offers. Just prove you hold a comparable elite tier with another airline and you’ll enjoy all the benefits of that tier for 4 months. Meet the specified goals within those 4 months, and you could extend those perks into the next membership year! (For details, please refer to the airline’s official website.)
Finding Oneworld Alliance on Trip.com
When searching for flights on Trip.com, you can easily filter for Oneworld Alliance flights, making it simple to earn miles or use your membership benefits.
STEP 1: Enter your itineraryOn the Trip.com Flights homepage, enter your departure airport (e.g., TPE), destination, and travel date. | Step 2: Use FiltersOnce your search results appear, look for the “Filter” feature on the side or at the top. | STEP 3: Choose an AllianceIn the filter tab, select "Oneworld." |
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Oneworld Lounge Access
Oneworld markets access to 600+ lounges worldwide, and nearly 700 lounges via tier benefits.
To use Oneworld lounges via status, you generally need a same-day flight that is both marketed and operated by a Oneworld member airline, and Emerald/Sapphire members may bring one guest who is also traveling on a oneworld flight.
Some Oneworld Policies
American Airlines AAdvantage members: not eligible for lounge access when traveling only on domestic US flights (some exceptions), and also not eligible for lounge access when traveling on many “North America region” routes like the U.S., Canada, Mexico, etc.
Alaska loyalty members: lounge access via Oneworld can be restricted unless traveling outside the U.S., Canada, or Mexico, with additional rules for premium cabin long haul connections
Who Can Use Oneworld Lounges?
- Passengers traveling in Business/First Class on Oneworld member airlines.
- Members with Oneworld Sapphire or Emerald status even when they choose to fly Economy can enter the lounge while bringing one accompanying guest.
Don’t forget! Even if you don’t have elite status, Trip.com also offers airport lounge reservations worldwide. Book now to easily enjoy comfortable spaces to relax and exclusive perks!
FAQs on Oneworld
How many airlines are in the oneworld alliance?
oneworld lists 15 member airlines, including American Airlines, Alaska Airlines, British Airways, JAL, Qantas, and Qatar AirwaysWhat is oneworld Emerald vs Sapphire?
Emerald generally includes First + Business lounge access and more priority services, while Sapphire typically includes Business lounge access and priority services.Do oneworld Sapphire members get lounge access on domestic US flights?
Not always—oneworld’s lounge access policy includes specific exceptions for American Airlines AAdvantage members on domestic US itineraries and other North America-only routes.What is a oneworld Round-the-World ticket?
oneworld offers RTW tickets designed for multi-country itineraries in one plan, including continent-based and distance-based options.