A recent search for a bus to Washington, D.C., from New York City pulled up dozens of trips — including departure time, price and duration — on lines like BoltBus, Megabus and DC2NY. Filters narrow search results to a particular operator as well as to buses that have Wi-Fi, power outlets, extra leg room, free water, loyalty rewards and “green certified” designations indicating that they were evaluated by the Certification for Sustainable Transportation at the University of Vermont (more information is available at Erating.org).

My Washington trip search showed that I could save $5 by taking the 10 a.m. Megabus from 34th Street and 11th Avenue for $21 instead of the 10:30 a.m. BoltBus from 33rd Street and Seventh Avenue for $26 — that is if I didn’t care about the extra legroom on BoltBus. On the other hand, the Megabus was “green certified.” Such are the dilemmas of travel nowadays. Sometimes you have to choose between your comfort and your conscience.

Wanderu is easy to use and at the moment it has partnerships with more than a dozen bus and train companies, which Wanderu said means that it covers roughly 80 percent of the East Coast market (one major bus company that’s not on the site, for instance, is Peter Pan). The site’s chief executive, Polina Raygorodskaya, said Wanderu was planning to expand to the Southeast next month and to the Midwest by the end of the year.

My search for a trip to Washington pulled up a number of bus options, though no trains. Turns out that Wanderu is reworking its Amtrak integration to make it faster, so while some trips turn up Amtrak options, Ms. Raygorodskaya said, the site’s full Amtrak integration should be back on track again in a few weeks. If you want to travel by train only (or by bus only), there isn’t a way to narrow the search to one mode of transportation, but you can filter by carrier. And given that Amtrak is the nation’s major train company, Ms. Raygorodskaya said, users can filter for trains simply by selecting Amtrak as their carrier of choice. Wanderu is also developing an app that will allow users to create accounts and save all their tickets in one place.

On Bustripping, another new intercity bus search engine, users can search for routes in 163 United States cities, four European cities and Vancouver, Canada. There is also an app for iPhone, iPad and iPod Touch. The site currently turns up trips among 18 bus companies like Yo! Bus and Go Buses. Bustripping’s chief executive, Ben Silverstein, said in an e-mail message that he is in talks with additional operators. The site, which is still building up its partnerships, is currently missing big carriers like Greyhound.