diff --git a/application/src/main/java/org/opentripplanner/apis/transmodel/model/siri/et/EstimatedCallType.java b/application/src/main/java/org/opentripplanner/apis/transmodel/model/siri/et/EstimatedCallType.java
index 3c3d9c9679c..ee10b94fb4b 100644
--- a/application/src/main/java/org/opentripplanner/apis/transmodel/model/siri/et/EstimatedCallType.java
+++ b/application/src/main/java/org/opentripplanner/apis/transmodel/model/siri/et/EstimatedCallType.java
@@ -15,6 +15,7 @@
 import java.time.LocalDate;
 import java.util.Collection;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 import org.opentripplanner.apis.transmodel.mapping.OccupancyStatusMapper;
 import org.opentripplanner.apis.transmodel.model.EnumTypes;
@@ -259,6 +260,21 @@ public static GraphQLObjectType create(
           .dataFetcher(environment -> ((TripTimeOnDate) environment.getSource()).getServiceDay())
           .build()
       )
+      .field(
+        GraphQLFieldDefinition.newFieldDefinition()
+          .name("serviceJourneyEstimatedCalls")
+          .type(new GraphQLNonNull(new GraphQLList(new GraphQLNonNull(REF))))
+          .description("All estimated calls for the ServiceJourney on this date.")
+          .dataFetcher(environment -> {
+            return GqlUtil.getTransitService(environment)
+              .findTripTimesOnDate(
+                environment.<TripTimeOnDate>getSource().getTrip(),
+                environment.<TripTimeOnDate>getSource().getServiceDay()
+              )
+              .orElse(List.of());
+          })
+          .build()
+      )
       .field(
         GraphQLFieldDefinition.newFieldDefinition()
           .name("serviceJourney")
diff --git a/application/src/main/resources/org/opentripplanner/apis/transmodel/schema.graphql b/application/src/main/resources/org/opentripplanner/apis/transmodel/schema.graphql
index 5917f68d2a6..5e2a90b06d8 100644
--- a/application/src/main/resources/org/opentripplanner/apis/transmodel/schema.graphql
+++ b/application/src/main/resources/org/opentripplanner/apis/transmodel/schema.graphql
@@ -253,6 +253,8 @@ type EstimatedCall {
   "Whether vehicle will only stop on request."
   requestStop: Boolean!
   serviceJourney: ServiceJourney!
+  "All estimated calls for the ServiceJourney on this date."
+  serviceJourneyEstimatedCalls: [EstimatedCall!]!
   "Get all relevant situations for this EstimatedCall."
   situations: [PtSituationElement!]! @timingData
   stopPositionInPattern: Int!