diff --git a/blazarclient/v1/client.py b/blazarclient/v1/client.py
index 071df33..ffad4cd 100644
--- a/blazarclient/v1/client.py
+++ b/blazarclient/v1/client.py
@@ -17,6 +17,7 @@
 
 from blazarclient.v1 import devices
 from blazarclient.v1 import allocations
+from blazarclient.v1 import flavor_instances
 from blazarclient.v1 import floatingips
 from blazarclient.v1 import hosts
 from blazarclient.v1 import leases
@@ -83,3 +84,9 @@ def __init__(self, blazar_url=None, auth_token=None, session=None,
             session=self.session,
             version=self.version,
             **kwargs)
+        self.flavor_instance = flavor_instances.FlavorInstanceClientManager(
+            blazar_url=self.blazar_url,
+            auth_token=self.auth_token,
+            session=self.session,
+            version=self.version,
+            **kwargs)
diff --git a/blazarclient/v1/flavor_instances.py b/blazarclient/v1/flavor_instances.py
new file mode 100644
index 0000000..032ea1b
--- /dev/null
+++ b/blazarclient/v1/flavor_instances.py
@@ -0,0 +1,34 @@
+# Copyright (c) 2024 University of Chicago.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+
+from blazarclient import base
+
+
+class FlavorInstanceClientManager(base.BaseClientManager):
+    """Manager for flavor instance availability requests."""
+
+    def get_availability(self, flavor_id=None, start_date=None, end_date=None):
+        """Get slot availability timeline for one or all Nova flavors."""
+        query_parts = []
+        if flavor_id:
+            query_parts.append('flavor_id=%s' % flavor_id)
+        if start_date:
+            query_parts.append('start_date=%s' % start_date)
+        if end_date:
+            query_parts.append('end_date=%s' % end_date)
+        url = '/flavor-instances/availability'
+        if query_parts:
+            url += '?' + '&'.join(query_parts)
+        resp, body = self.request_manager.get(url)
+        return body
diff --git a/blazarclient/v1/shell_commands/flavor_instances.py b/blazarclient/v1/shell_commands/flavor_instances.py
new file mode 100644
index 0000000..aaa5b13
--- /dev/null
+++ b/blazarclient/v1/shell_commands/flavor_instances.py
@@ -0,0 +1,70 @@
+# Copyright (c) 2024 University of Chicago.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+
+import logging
+
+from cliff import lister
+
+from blazarclient import command
+
+
+class ListFlavorInstanceAvailability(command.BlazarCommand, lister.Lister):
+    """List availability slots for Nova flavors."""
+    resource = 'flavor_instance'
+    log = logging.getLogger(__name__ + '.ListFlavorInstanceAvailability')
+    list_columns = ['flavor_id', 'start', 'end', 'available', 'total']
+
+    def get_parser(self, prog_name):
+        parser = super(ListFlavorInstanceAvailability, self).get_parser(
+            prog_name)
+        parser.add_argument(
+            'flavor_id',
+            metavar='FLAVOR_ID',
+            nargs='?',
+            default=None,
+            help='Nova flavor UUID to check availability for (default: all flavors)'
+        )
+        parser.add_argument(
+            '--start-date',
+            metavar='<start_date>',
+            default=None,
+            help="Start of the availability window (format: 'YYYY-MM-DD HH:MM',"
+                 " default: now)"
+        )
+        parser.add_argument(
+            '--end-date',
+            metavar='<end_date>',
+            default=None,
+            help="End of the availability window (format: 'YYYY-MM-DD HH:MM',"
+                 " default: 30 days from start)"
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)' % parsed_args)
+        blazar_client = self.get_client()
+        result = blazar_client.flavor_instance.get_availability(
+            flavor_id=parsed_args.flavor_id,
+            start_date=parsed_args.start_date,
+            end_date=parsed_args.end_date,
+        )
+        flavor_results = result.get('flavor_instances', [])
+        columns = self.list_columns
+        rows = (
+            (fr['flavor_id'], seg['start'], seg['end'],
+             seg['available'], seg['total'])
+            for fr in flavor_results
+            for seg in fr.get('availability', [])
+        )
+        return columns, rows
diff --git a/setup.cfg b/setup.cfg
index 12f4b4c..4dc7c86 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -50,6 +50,7 @@ openstack.reservation.v1 =
     reservation_device_show = blazarclient.v1.shell_commands.devices:ShowDevice
     reservation_allocation_list = blazarclient.v1.shell_commands.allocations:ListAllocations
     reservation_allocation_show = blazarclient.v1.shell_commands.allocations:ShowAllocations
+    reservation_flavor_instance_availability_list = blazarclient.v1.shell_commands.flavor_instances:ListFlavorInstanceAvailability
     reservation_floatingip_create = blazarclient.v1.shell_commands.floatingips:CreateFloatingIP
     reservation_floatingip_delete = blazarclient.v1.shell_commands.floatingips:DeleteFloatingIP
     reservation_floatingip_list = blazarclient.v1.shell_commands.floatingips:ListFloatingIPs