diff --git a/src/libs/TripReservationUtils.ts b/src/libs/TripReservationUtils.ts
index ddcd92beae81..6fa86fee05d5 100644
--- a/src/libs/TripReservationUtils.ts
+++ b/src/libs/TripReservationUtils.ts
@@ -421,7 +421,9 @@ function isPnrCancelled(pnr: Pnr): boolean {
     }
     if (data.railPnr) {
         const {outwardJourney, inwardJourney} = data.railPnr;
-        return isCancelledPnrStatus(outwardJourney.journeyStatus) && isCancelledPnrStatus(inwardJourney.journeyStatus);
+        const isOutwardCancelled = outwardJourney ? isCancelledPnrStatus(outwardJourney.journeyStatus) : true;
+        const isInwardCancelled = inwardJourney ? isCancelledPnrStatus(inwardJourney.journeyStatus) : true;
+        return isOutwardCancelled && isInwardCancelled;
     }
 
     return false;
diff --git a/src/types/onyx/TripData.ts b/src/types/onyx/TripData.ts
index 31f5976548b0..9bbbdaa9267c 100644
--- a/src/types/onyx/TripData.ts
+++ b/src/types/onyx/TripData.ts
@@ -1712,8 +1712,8 @@ type CarPnr = {
 
 /** Represents the structure of RailPnr. */
 type RailPnr = {
-    /** Details of the inward journey. */
-    inwardJourney: {
+    /** Details of the inward journey (undefined for one-way trips). */
+    inwardJourney?: {
         /** Status of the inward journey. */
         journeyStatus: string;
 
diff --git a/tests/unit/TripReservationUtilsTest.ts b/tests/unit/TripReservationUtilsTest.ts
index c9c888c4192c..8c618d277aae 100644
--- a/tests/unit/TripReservationUtilsTest.ts
+++ b/tests/unit/TripReservationUtilsTest.ts
@@ -2278,6 +2278,7 @@ const connectingAirPnrData = asDefined(airPnrConnecting.data.airPnr);
 const hotelPnrData = asDefined(hotelPnr.data.hotelPnr);
 const carPnrData = asDefined(carPnr.data.carPnr);
 const railPnrData = asDefined(railPnr.data.railPnr);
+const railInwardJourney = asDefined(railPnrData.inwardJourney);
 
 describe('TripReservationUtils', () => {
     describe('getAirReservations', () => {
@@ -2828,7 +2829,7 @@ describe('TripReservationUtils', () => {
                             journeyStatus: CONST.PNR_STATUS.CANCELLED,
                         },
                         inwardJourney: {
-                            ...railPnrData.inwardJourney,
+                            ...railInwardJourney,
                             journeyStatus: CONST.PNR_STATUS.CANCELLED,
                         },
                     },
@@ -2849,7 +2850,7 @@ describe('TripReservationUtils', () => {
                             journeyStatus: CONST.PNR_STATUS.CANCELLED,
                         },
                         inwardJourney: {
-                            ...railPnrData.inwardJourney,
+                            ...railInwardJourney,
                             journeyStatus: 'CONFIRMED',
                         },
                     },
@@ -2890,5 +2891,37 @@ describe('TripReservationUtils', () => {
             expect(isPnrCancelled(airPnrDirect)).toBe(false);
             expect(isPnrCancelled(railPnr)).toBe(false);
         });
+
+        it('should not crash when rail PNR has undefined inwardJourney (one-way trip)', () => {
+            const oneWayRail: Pnr = {
+                ...railPnr,
+                data: {
+                    ...railPnr.data,
+                    railPnr: {
+                        ...railPnrData,
+                        inwardJourney: undefined,
+                    },
+                },
+            };
+            expect(isPnrCancelled(oneWayRail)).toBe(false);
+        });
+
+        it('should return true when rail PNR has undefined inwardJourney and outwardJourney is cancelled', () => {
+            const cancelledOneWayRail: Pnr = {
+                ...railPnr,
+                data: {
+                    ...railPnr.data,
+                    railPnr: {
+                        ...railPnrData,
+                        inwardJourney: undefined,
+                        outwardJourney: {
+                            ...railPnrData.outwardJourney,
+                            journeyStatus: CONST.PNR_STATUS.CANCELLED,
+                        },
+                    },
+                },
+            };
+            expect(isPnrCancelled(cancelledOneWayRail)).toBe(true);
+        });
     });
 });