2. California Zephyr
In the land of the road trip a great train journey does not immediately spring to mind but the California Zephyr is exactly that. Travelling the pioneer route west from Chicago to San Francisco the California Zephyr crosses the Mississippi, the Rockies and the Sierra Nevada. Non stop the trip takes 2 1/2 days which is a bit longer than flying but does avoid queues, check in and there’s more room than coach. You can read more about the California Zephyr here.