Added achievement data

app/Models/UserFlight.php

@@ -148,6 +148,14 @@ class UserFlight extends Model
         );
     }
 
+    public function isDomestic() : bool{
+        return $this->departureAirport->region->country_id == $this->arrivalAirport->region->country_id;
+    }
+
+    public function isInternational() : bool{
+        return !$this->isDomestic();
+    }
+
     public function user(): BelongsTo
     {
         return $this->belongsTo(User::class);