Flight from Denver (DEN) to Zurich (ZRH) from $917

Log in at swiss.com and use your name, booking code, e-ticket number, or profile to check in online. Select your seat and enter your passport details. You can then have your boarding pass sent to your smartphone or print it out.

Alternatively, you can check in using the SWISS App.

Depending on your travel class and flight duration, you can enjoy a wide variety of culinary delights. Choose from our menu options: SWISS First, SWISS Business, SWISS Premium Economy, SWISS Economy, or SWISS Choice – our à la carte menu. Enjoy our top-quality meals and beverages on board.

The amount and weight of the checked baggage you can bring depends on your travel class. If you're going on a short trip and not taking any checked baggage, keep in mind that overhead space is limited and some items aren’t allowed in the cabin. For full details, please have a look at our baggage guidelines.

On long-haul flights, you can stay connected with our free “Messaging” Wi-Fi package, which lets you use popular messaging apps throughout your flight.

For a more complete internet experience, you can purchase the “Wi-Fi 4 Hours” or “Wi-Fi Premium” packages. Depending on the option you choose, you'll get unlimited web access for either 4 hours or the entire flight.

You can book a flight from Denver to Zurich on swiss.com from $917.

Flights to Zurich depart from Chicago, New York, Washington, Boston, San Francisco, Tampa, Miami, Los Angeles, Las Vegas.

If a flight gets cancelled, we will immediately rearrange the itinerary for all affected travellers. You can view the updated flight details under "My bookings". Our SWISS Chat Assistant Nelly is there to help you if you require assistance.

You are allowed to take a certain amount of checked baggage with you on your flight. The size, weight, and number of items permitted as your checked baggage depends on your fare, route, and frequent flyer status.

Premium Economy Class is our travel class with extra comfort for long-haul flights. Enjoy many benefits such as wider seating with more reclining possibilities for a restful journey.

You have the following upgrade options: booking at a fixed price, making an offer with Bid Upgrade or purchasing an upgrade during online check-in up to 23 hours before departure. You can select these options in "My Bookings." Find more details here.

The time limits for a SWISS Business Class upgrade depend on which upgrade option you choose.

• Upgrade for a fixed price: You can book an upgrade at a fixed price anytime up to 24 hours before departure.
• Bid Upgrade: If you want to make a bid, your ticket must have been issued at least 72 hours before departure.
• Online check-in upgrade: You can upgrade from 23 hours before departure during online check-in.

You can find more information here.

Business Class upgrade prices with SWISS depend on your flight route, booking class, availability and which upgrade option you choose. You can upgrade for a fixed price, using miles or by making an offer with Bid Upgrade. The exact costs are shown during the booking process. You will find more information here.

Yes, you can use your Miles & More miles for an upgrade on short and long-haul routes. You can redeem your miles for up to 4 passengers. Learn more here.