Shree Somnath Jyotirling Temple, is believed that it is the first among the twelve Jyotirlinga shrines of Shiva.
Delhi to Somnath by flight
You can take a flight from Delhi to Porbandar, then a bus or taxi to Somnath. Or alternatively, you can take a flight for Rajkot, Ahmedabad, Diu whichever place suits you for moving further from there.
Delhi to Somnath by Train
The cheapest way to reach Somnath from Delhi is by train to Porbandar which starts from Delhi Sarai Rohilla. It will take 24 hours then take a GSRTC bus from Porbandar to Somnath which will take hardly 2 to 2:30 hours.
Delhi to Somnath by Road
If you opt for the Road, then it is 1,304 KM far from Delhi. Which will take a 22-23 hours drive, if you drive non-stop
