I did a quick analysis using the Good Sam trip routing feature from SE Mass to Anchorage. The time difference between the two was about 4 hours less thru Canada and the fuel cost difference was about $10 more thru Canada (the distance was about 350 miles less). I compared it to going thru Great Falls, MT
We have the National Parks Senior pass so we can camp in the US National parks in the US at half price, so that would be cheaper.
Check out the routing feature - maybe go out one way and back the other.
One way west bound and stay in the other country on the way back is a good idea as mentioned. I have found that the cheaper campgrounds in Canada will offset most of the higher fuel prices I encounter. Especially in the smaller towns and villages, when you will often find campgrounds at a very low cost or even have seen a few free ones. Some are run by the town government and others are run by one of the many service organizations in the town. Common to see campgrounds run by the local Rotary Club, Kiwanis Club, Possum Lodge, and others. I like to stop in these smaller places when I have the time, overnight and look around for the local "breakfast" place and go in for a bite. Always a group of old timers in such a place and I will introduce myself and ask the group, what should I see in their area? Sure have seen some interesting places doing this in both Canada and the US. Every town has something they are proud of and happy to share it.
On the average most of our round trips to Alaska from south Florida run close to $10,000 usd for the total summer's expenses, a few extra dollars, to see something new in Canada, that I have never seen before is well worth a few extra dollars for fuel. Just remind yourself, the locals have to pay those prices every day, but that is why they make the big bucks working north of the border. LOL
Formerly of Colorado and Alaska
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Alaska Trip 2011 posted
Colo-Utah-Ariz 2012 trip posted
"Without challenge, adventure is impossible".