MINNEAPOLIS — Two discount airlines flying out of Minneapolis to vacation destinations, Allegiant and Sun Country, are merging. With their complementary route networks, the result will be the fifth largest U.S. airline — although separate brands, logos and paint schemes will continue. The deal was a $2.1 billion all-stock transaction. The fleets:

Allegiant
Las Vegas homebase
Airbus A310-100 (138 to 156 passengers): 31 in service
Airbus 320-200 (159-177 passengers): 9 in sevice
Boeing 737 MAX 200 (169-190 (passengers): 16 in service lus 10 on rder
Boeing 737 MAX 7: 24 on order
Options for 80 more 737 MAXes

Sun Country
Minneapolis homebase
Boeing 737-800 (56 to 186 passengers): 43
Boeing 737-800 (88 for charters): 1
Boeing737-800ER (159 to 187): 2 in service plus 3 on order.
Boeing 737-80BCF (for Amazon Air cargo): 20.