Here are the two cheapest flight deals available for you to consider:

OPTION 1 - Flight deal via Air India

This flight takes 12h 30m on the outbound leg with a layover in Delhi fro 2h 30m, and 16h for the return trip with a stop over in Delhi for 6h.The total cost for this return flight is $988, and it can be booked here.

*This is an overnight flight.

The details:

 (Source: Hipmunk)

 (Source: Hipmunk)

OPTION 2 - Flight deal via Air India and Swiss International Ailines

This is the second cheapest option, and is available as an offline deal on ITA. The outbound flight is 25h long, and there is a 9h 30m stop at Mumbai, while the inbound flight is 16h long with a 6h stop in Mumbai again. This deal is not available for booking online, but we can help you with securing the tickets if you do desire to take this flight.

*Compared to this deal, the one on Hipmunk is a better option.

Here are the details:

Matrix - Flights (Source: Matrix - Flights)

This deal is available on Kayak and costs $1992. The outbound flight is 12h 30m long, and the inbound flight is 10h 50m long. There is a stopover in Frankfurt on both legs. The deal comes via Lufthansa flights, and is available here.

Details:

KAYAK Search Results (Source: KAYAK Search Results)

Zurich Airport is an official 4 star airport. It is such a beautiful airport that the authorities have arrange for tours inside the airport itself. Some of the sightseeing tours include the observation deck, scenic flights, guided tours of the airport, etc and much more.

Transportation is easily available outside the airport. Here is some information on Taxis available at the airport.

The airport taxi rank is located in front of Arrivals 1 and 2. A taxi ride from Zurich Airport to Zurich city center costs approximately CHF 60. Taxis may be reserved in advance by calling 0848 850 852

 (Source: Taxis at Zurich Airport)

ZURICH KLOTEN AIRPORT SWITZERLAND AUGUST 2011 (Source: calflier001)