Is Swiss Air a Delta Partner? What Travelers Need to Know

If you’re planning a trip and wondering whether Swiss Air is a Delta partner, the short answer is yes—but the details matter. Both airlines are part of the same global alliance, which means you can earn and redeem miles across their networks. Below, we break down what this partnership means for your travel plans, from booking to loyalty perks.

How the Swiss Air–Delta Partnership Works

Swiss International Air Lines and Delta Air Lines are both members of the SkyTeam alliance. This means their frequent flyer programs—Swiss Miles & More and Delta SkyMiles—are interlinked. You can earn miles on flights operated by either airline, and redeem them for award tickets on both carriers. For example, if you fly Delta from New York to London, you’ll earn Swiss Miles & More credit, and vice versa.

Booking Flights Across Both Airlines

You can book flights on Swiss Air or Delta directly through either airline’s website or app. When searching, you’ll see combined results, making it easier to compare routes and prices. For instance, if you’re flying from Chicago to Zurich, Delta’s system will show Swiss Air-operated flights as an option. This flexibility is especially useful if one airline offers a better schedule or price for your route.

Earning and Redeeming Miles Together

The partnership allows you to pool miles from both programs. If you have a Delta SkyMiles account, you can credit flights on Swiss Air to it, and vice versa. This is helpful if you’re close to a redemption threshold, like a free flight or upgrade. For example, a round-trip from Los Angeles to Geneva could earn you enough miles for a future award ticket if credited to the right program.

What to Watch Out For

While the partnership is seamless for most travelers, there are a few caveats. Not all flights or fare classes earn miles at the same rate. Economy Basic fares on Delta, for instance, may earn fewer miles than standard Economy tickets. Always check the specific earning rules on the airline’s website before booking. Also, award availability can vary—just because Swiss Air and Delta are partners doesn’t mean every flight has open seats for redemption.

Alternatives If You Need More Options

If you’re flexible with your travel plans, consider other SkyTeam partners like Air France or KLM. These airlines also share routes and loyalty benefits with Delta and Swiss Air. For example, you could fly Delta to Amsterdam, then connect to Zurich on Swiss Air, all while earning and redeeming miles in the same program. This can sometimes offer better pricing or more flight choices.

Before your next trip, log in to your frequent flyer account and review the partnership details. Confirm how to credit your flights and check award availability for your destination. With a little planning, you can maximize the benefits of this collaboration and make your travel smoother and more rewarding.