travelforless.com appears to be owned by FindYourDomain; possible trademark conflict with travel4less.com. Nothing relevant on file with USPTO, but that doesn't mean you're in the clear. I'm pretty sure it's actually owned by FindYourDomain, or someone very closely connected to them--I don't mean brokered by them. You're probably fine, but it's worth keeping an eye on their site. If they start any shenanigans after you establish your business, make a fuss. I've heard they're reputable, so I doubt they'll give you any trouble.
That being said, running into a big player like that is probably a good sign. collections.com, degrees.net, and tirecenter.com appear to be in the same portfolio, among others, but it's a small, selective group. I suspect someone knows what they're doing. Maybe they'll buy your name, but I doubt it, since they seem to dislike numbers.
If you want to buy travelforless.com, you can probably contact the owner through FindYourDomain. Alternatively, you can try the WHOIS privacy proxy, but I never have much luck with those. At least see what they want for their domain, and then you can get an idea of what you should ask for yours. Expect less since yours has a number. Also, don't tell them that you own travel4less.com; that will inflate their asking price.