Are there bus tours to Alaska?

No

Getting there means crossing an international boundry. You have to board a plane, ship or ferry to just get there. Most of the tour companies that operate in Alaksa are out of the lower 48. Your best bet would be to get to Bellingham, Wa. by what ever means that you can and take a "walk on" ticket on Alaska Marine Highway's ferry or as it's called the state ferry. They have cabins(rooms) and restaraunts on board. You can see the "inside passage" in southeast Alaska and even go on the "cross gulf" boat from Juneau to Whittier and then take any number of tours from there. There is the Alaska train or there are bus tours too. You should book early because there may not be any cabins available on board if you wait until you get there. You can and many people do just camp out in the ferries with a sleeping bag. There are roving security patrols and crew everywhere, so it's very safe and makes the trip enjoyable. You will see whales and large marine wildlife along the way and could get off the ferry at any town and look around, but you may not get a cabin when you get back on. I really hope that you get the chance to go and enjoy the scenery.

Drive, train, or Greyhound over to Seattle (and up to Vancouver if necessary) and then take a cruise. You will see many ports even on the 7 day round trip.

You can also add on a 7 - 10 day land package tour to see a large amount of Alaska [Anchorage area, up to Denali and up to Fairbanks], by bus and or train. Then train back to Anchorage and board another cruise or ride Greyhound to get back to Seattle/Vancouver.

Or, you could skip the inland tour package, and just do a 14 day round trip up to Seward, Alaska and back.

Your choice of plans depending on time and financial constraints.

{ I cannot imagination that a bus tour TO Alaska would be that exciting. But you could make your own by taking Greyhound, getting off in places, and using local transportation to see the area - which will mostly be trees and mountains. }

Trust me... find a Travel Agent near your home or work and stop in their office.