Sen. Warner is a road warrior, and he insists on a schedule that goes from dawn to dusk,' said Kevin Hall, Warner's spokesman. 'He spent 75 days on the road in Virginia last year, and that does not include events here in Northern Virginia.'
Hall said the road trip involved 25 public events across the state. 'Using a plane to get from one end of the state to the other freed-up more than 12 hours of driving time, and this allowed us to schedule several additional events and create more opportunities to meet with our Virginia constituents.'
Many of the senators reporting charter flights hail from large and sparsely populated states. For instance, Republican John Barrasso of Wyoming reported charter flights totaling $83,000 in 2013, including a $3,700 trip to Cowley, Wyo., a town of fewer than 1,000 people on the state's northern border. His colleague Mike Enzi, also a Republican, spent just under $32,000 on charter flights last year. Both offices said the geography of the state required charter travel to reach constituents.
But the top two charter fliers in 2013 were Sens. Charles Schumer and Kirsten Gillibrand, both Democrats of New York a large but more densely populated state with a lot of commercial transportation options.
Schumer on several occasions spent more than $5,000 from his office account to charter planes between New York City and Albany, Buffalo and Rochester, even though cheaper commercial flights and trains link the cities. Gillibrand regularly chartered flights from Washington to places in New York with multiple transportation options.
Aides to Gillibrand and Schumer said their schedules precluded them from traveling by other means. Schumer spokesman Matt House tried to dispel any notion that the senator was charging taxpayers for high-flying luxuries.
'It is not possible to keep this rigorous a schedule by flying on commercial airlines alone, so he also travels on a small, four-seat propeller plane with no bathroom that's not even big enough to stand up in,' House said.
In Texas, Sen. Ted Cruz, a Republican, spent about $18,000 on charter flights around the state. 'We will sometimes use a charter when there is not a commercial flight available to get him between official events scheduled in the state,' Cruz spokeswoman Catherine Frazier said.
'As you know, Texas is a rather large state, and we do our best to maximize his time with constituents in different regions,' Frazier said. But the Lone Star State's other senator, Republican John Cornyn, used only commercial transportation.
In West Virginia, Sen. Joe Manchin recorded no charter flights in 2013, while fellow Democratic Sen. Jay Rockefeller, who announced at the beginning of last year that he would not run for re-election, took $91,000 worth of charter flights. Rockefeller's office did not respond to requests for comment on this story.
Overall, 14 Republicans, nine Democrats and one independent reported charter flights in 2013, but Democrats spent $638,000 of the $920,000 total spent on charters.
Contributing: Valerie Dekimpe