The Atlanta-based carrier will offer a special flight for umbraphiles on April 8, flying from Austin to Detroit, which will let them spend as much time as possible in the path of the eclipse’s totality.

Passengers will fly in an A220-300, which has airplane windows that are larger than usual. The flight will take off at 12:15 p.m. CT and land in Detroit just over four hours later.

This is one time you really don’t want there to be a weather delay. Or, for that matter, to grab the aisle seat.

Either way, you’ll need to act fast—real fast. As of 9:30 a.m. Tuesday, only two seats remained available for purchase, with a price tag of $1,129 each (one-way). Eclipse safety glasses are not included.

“This flight is the result of significant collaboration and exemplifies the close teamwork Delta is known for — from selecting an aircraft with larger windows to determining the exact departure time from Austin and the experiences at the gate and in the air,” Eric Beck, managing director of Domestic Network Planning at Delta, said in a statement. “Thanks to teams across the company, the idea of viewing a total eclipse from the air will become a reality for our customers.”

The last total eclipse in North America took place in 2017—and there won’t be another until 2044. This year’s eclipse will reportedly last twice as long as the one witnessed seven years ago.

Miss your chance to catch the eclipse flight? You’ll also be able to view the totality, though not for as long, on five other flights, the carrier says. Those are:

• DL 5699, DTW-HPN, 2:59 pm EST departure
• DL 924, LAX-DFW, 8:40 am PST departure
• DL 2869, LAX-SAT, 9:00 am PST departure
• DL 1001, SLC-SAT, 10:08 am MST departure
• DL 1683, SLC-AUS, 9:55 am MST departure