Anonymous wrote:I've done long hauls in the air (30 hours) with a young toddler, so I'm not completely freaked out by the idea of something like this. But it will be pretty hard. What will you do in Chicago? Can you leave your luggage somewhere and run the kids around until they are completely exhausted?
Another alternative which I'd look into--what is your cheapest fly/train combo? Fly a discount airline like SW to as close to your destination as you can manage (Denver???), then get on the train. If you can afford to spend 4 days in travel, sounds like your dates are pretty flexible.
I just did a similar long-haul flight with my under-2-year-old and I think 42 hours is just crazy.
OP, $550 is not worth it -- just take a flight!