JetBlue has slashed fares on dozens of popular flights for travelers who book by the end of today — and tickets are available from a record-low $19 one-way.

“For one day only, JetBlue is offering customers 40 one-way routes priced under $40 – with the lowest fares at just $19!” the airline shared in a statement with T+L. “Whether customers have been eyeing a flight or waiting to book their next seasonal getaway, JetBlue’s latest flash sale has low fares going fast.”

The airline’s flash sale, which must be booked by 11:59 p.m. ET tonight, Sep. 17, applies to Tuesday and Wednesday travel between Oct. 1 and Nov. 20. JetBlue’s promotional page features the complete list of deals, and Travel + Leisure found the following routes on sale for $19 to $39, including government taxes and fees: 

• Boston (BOS) to/from Presque Isle, Maine (PQI): $19
• Fort Lauderdale (FLL) to/from Tallahassee (TLH): $19
• New York (JFK) to/from Atlanta (ATL), Boston (BOS), and Syracuse (SYR): $19
• Los Angeles (LAX) to/from Salt Lake City (SLC): $19
• Orlando (MCO) to/from Raleigh (RDU) and Washington, D.C. (DCA): $29
• San Juan (SJU) to/from St. Thomas (STT): $29
• Hartford (BDL) to/from Tampa (TPA) and Fort Lauderdale (FLL): $39

These discounted fares are available in JetBlue’s "Blue Basic" class, which has the most restrictive terms regarding changes and cancellations. However, passengers are allowed to bring both a personal item and a carry-on bag onboard, thanks to a major update rolled out by the carrier earlier this month.  

Travelers with TrueBlue points are in luck, as many of these same flights can be booked for as few as 2,500 points and $5.60 in taxes and fees in JetBlue’s “Blue” class. This upgraded fare offers flexibility, as it can be changed or canceled at any time with no penalties, and allows travelers to select their seats at the time of booking.