JetBlue and United Airlines have begun to cross-sell flights on their respective websites and mobile app as part of their Blue Sky collaboration. Customers will be able to book flights on either carrier, using cash, points or miles.

When searching for flights on either airline’s website or mobile app, customers will start to see more options from both carriers, making it easier to plan and book travel using the booking method of their choice, according to an announcement. The airlines expect to later add the ability to book a single itinerary that includes flights operated by both JetBlue and United.

This offering follows the introduction of reciprocal loyalty earning and redemption in 2025, which enabled TrueBlue and MileagePlus members to earn and redeem rewards across both carriers.

With Blue Sky, customers can, according to the announcement:

• Purchase flights or redeem loyalty currency — TrueBlue points on JetBlue channels or MileagePlus miles on United channels — for eligible itineraries.
• Easily book more flights in one place, taking advantage of JetBlue’s leisure markets and United’s domestic and global footprint, including United Express.
• Plan travel more easily, with integrated shopping, clearer options, and more transparency around loyalty value.
• Access more destinations through JetBlue Vacations, with United flights now available as part of Flight + Hotel packages (and cruise packages coming soon), unlocking travel including Japan, Brazil, Italy, Greece and more for JetBlue Vacations customers.

Andrew Nocella, chief commercial officer at United, said, “With cash bookings now available, Blue Sky is making it even easier for customers to plan and purchase travel across two leading networks.”

Marty St. George, president of JetBlue, said, “Throughout the year, we will enhance the Blue Sky collaboration by introducing reciprocal loyalty perks on flights and expanding vacation offerings, including United-supported products such as hotels, cruises, rental cars and travel insurance.”

Phases of the collaboration to come include:

• Reciprocal perks and benefits  — arriving later this spring — including priority boarding, preferred and extra legroom seating, and same-day changes and standby.
• United’s planned growth for JFK — with JetBlue providing United access to slots for up to seven daily roundtrips at JFK’s new Terminal 6 as early as 2027.