In the aftermath of Tuesday night’s tragic Amtrak crash in Philadelphia, the train company has said service along the Philadelphia-to-New York corridor will be shuttered through the weekend.

That’s left commuters making the popular D.C.-to-New York commute scrambling for other transportation options and filling up the planes and buses that make that trek.

American Airlines added two additional round-trip flights Thursday from D.C. to LaGuardia Airport to meet the uptick in demand, spokeswoman Andrea Huguely said. Elizabeth Wolf, a spokeswoman for Delta Air Lines, similarly wrote in an e-mail that the airline has seen an increase in passengers booking its D.C.-to-New York shuttle service. As a result, Delta has increased the size of its planes traveling the route.

Both airlines say they have not increased their prices as a result of the unexpected rush of customers. Still, a search online shows that booking a last-minute flight from D.C. to New York could cost upwards of $1,000.

“You’re not seeing anything above the norm,” said Brett Snyder, who writes the Cranky Flier, a travel blog. “It’s just doing what airlines do, managing supply and demand. This is already an extremely expensive market for buying last minute flights. … The fluctuations that you’re seeing probably have to do with the fact that the planes are more crowded.”

[The latest on the deadly Amtrak crash]

If commuters don’t want to pay those steep prices, some private bus companies — much cheaper but also far slower than planes or trains — added additional vehicles to accommodate customers that had planned to take a train along the East Coast.

Greyhound Lines, which owns Greyhound and BoltBus, has increased its bus offerings this weekend on routes between New York and D.C.

The company has added a total of 16 Greyhound buses to its existing schedule — 10 buses have been added to the New York-to-Philadelphia route and six to the New York-to-D.C. route, according to spokeswoman Ashley Sears. BoltBus secured an extra 10 buses to make the trips; eight to Philadelphia and two to D.C.

Until Amtrak service resumes, Sears said Amtrak customers can exchange their tickets for Greyhound bus tickets.

MegaBus has not added additional buses, but said trips along that corridor sold out Wednesday and are expected to do the same Thursday.

Spokesman Sean Hughes said there’s still availability after 8 p.m. Friday, between 6 and 9 a.m. Sunday morning, and after 8 p.m. Sunday evening for passengers looking to make the trip to or from New York this weekend.