diff --git a/internal/restapi/stops_for_route_handler.go b/internal/restapi/stops_for_route_handler.go
index e1b26785..f97aed0e 100644
--- a/internal/restapi/stops_for_route_handler.go
+++ b/internal/restapi/stops_for_route_handler.go
@@ -6,6 +6,7 @@ import (
 	"log/slog"
 	"net/http"
 	"sort"
+	"sync"
 	"time"
 
 	"github.com/twpayne/go-polyline"
@@ -215,14 +216,28 @@ func buildStopsList(ctx context.Context, api *RestAPI, calc *GTFS.AdvancedDirect
 		stopIDs = append(stopIDs, stopID)
 	}
 
-	stops, err := api.GtfsManager.GtfsDB.Queries.GetStopsByIDs(ctx, stopIDs)
-	if err != nil {
-		return nil, err
+	// Fetch stops and routes in parallel for improved performance
+	var stops []gtfsdb.Stop
+	var routeRows []gtfsdb.GetRouteIDsForStopsRow
+	var stopsErr, routesErr error
+	var wg sync.WaitGroup
+
+	wg.Add(2)
+	go func() {
+		defer wg.Done()
+		stops, stopsErr = api.GtfsManager.GtfsDB.Queries.GetStopsByIDs(ctx, stopIDs)
+	}()
+	go func() {
+		defer wg.Done()
+		routeRows, routesErr = api.GtfsManager.GtfsDB.Queries.GetRouteIDsForStops(ctx, stopIDs)
+	}()
+	wg.Wait()
+
+	if stopsErr != nil {
+		return nil, stopsErr
 	}
-
-	routeRows, err := api.GtfsManager.GtfsDB.Queries.GetRouteIDsForStops(ctx, stopIDs)
-	if err != nil {
-		return nil, err
+	if routesErr != nil {
+		return nil, routesErr
 	}
 
 	// Organize Routes in Memory
diff --git a/internal/restapi/trip_details_handler.go b/internal/restapi/trip_details_handler.go
index e88e49b2..79a92432 100644
--- a/internal/restapi/trip_details_handler.go
+++ b/internal/restapi/trip_details_handler.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"net/http"
 	"strconv"
+	"sync"
 	"time"
 
 	"maglev.onebusaway.org/gtfsdb"
@@ -309,9 +310,28 @@ func (api *RestAPI) buildStopReferences(ctx context.Context, calc *GTFS.Advanced
 		return []models.Stop{}, nil
 	}
 
-	stops, err := api.GtfsManager.GtfsDB.Queries.GetStopsByIDs(ctx, originalStopIDs)
-	if err != nil {
-		return nil, err
+	// Fetch stops and routes in parallel for improved performance
+	var stops []gtfsdb.Stop
+	var allRoutes []gtfsdb.GetRoutesForStopsRow
+	var stopsErr, routesErr error
+	var wg sync.WaitGroup
+
+	wg.Add(2)
+	go func() {
+		defer wg.Done()
+		stops, stopsErr = api.GtfsManager.GtfsDB.Queries.GetStopsByIDs(ctx, originalStopIDs)
+	}()
+	go func() {
+		defer wg.Done()
+		allRoutes, routesErr = api.GtfsManager.GtfsDB.Queries.GetRoutesForStops(ctx, originalStopIDs)
+	}()
+	wg.Wait()
+
+	if stopsErr != nil {
+		return nil, stopsErr
+	}
+	if routesErr != nil {
+		return nil, routesErr
 	}
 
 	stopMap := make(map[string]gtfsdb.Stop)
@@ -319,11 +339,6 @@ func (api *RestAPI) buildStopReferences(ctx context.Context, calc *GTFS.Advanced
 		stopMap[stop.ID] = stop
 	}
 
-	allRoutes, err := api.GtfsManager.GtfsDB.Queries.GetRoutesForStops(ctx, originalStopIDs)
-	if err != nil {
-		return nil, err
-	}
-
 	routesByStop := make(map[string][]gtfsdb.Route)
 	for _, routeRow := range allRoutes {
 		if ctx.Err() != nil {
diff --git a/internal/restapi/trip_for_vehicle_handler.go b/internal/restapi/trip_for_vehicle_handler.go
index 82934a02..e0c812d8 100644
--- a/internal/restapi/trip_for_vehicle_handler.go
+++ b/internal/restapi/trip_for_vehicle_handler.go
@@ -6,6 +6,7 @@ import (
 	"errors"
 	"net/http"
 	"strconv"
+	"sync"
 	"time"
 
 	"maglev.onebusaway.org/gtfsdb"
@@ -301,20 +302,35 @@ func BuildStopReferencesAndRouteIDsForStops(api *RestAPI, ctx context.Context, a
 		}
 	}
 
-	stopsDB, err := api.GtfsManager.GtfsDB.Queries.GetStopsByIDs(ctx, uniqueStopIDs)
-	if err != nil {
-		return nil, nil, err
+	// Fetch stops and routes in parallel for improved performance
+	var stopsDB []gtfsdb.Stop
+	var allRoutes []gtfsdb.GetRoutesForStopsRow
+	var stopsErr, routesErr error
+	var wg sync.WaitGroup
+
+	wg.Add(2)
+	go func() {
+		defer wg.Done()
+		stopsDB, stopsErr = api.GtfsManager.GtfsDB.Queries.GetStopsByIDs(ctx, uniqueStopIDs)
+	}()
+	go func() {
+		defer wg.Done()
+		allRoutes, routesErr = api.GtfsManager.GtfsDB.Queries.GetRoutesForStops(ctx, uniqueStopIDs)
+	}()
+	wg.Wait()
+
+	if stopsErr != nil {
+		return nil, nil, stopsErr
+	}
+	if routesErr != nil {
+		return nil, nil, routesErr
 	}
+
 	stopMap := make(map[string]gtfsdb.Stop)
 	for _, stop := range stopsDB {
 		stopMap[stop.ID] = stop
 	}
 
-	allRoutes, err := api.GtfsManager.GtfsDB.Queries.GetRoutesForStops(ctx, uniqueStopIDs)
-	if err != nil {
-		return nil, nil, err
-	}
-
 	routesByStop := make(map[string][]gtfsdb.Route)
 	uniqueRouteMap := make(map[string]gtfsdb.GetRoutesForStopsRow)
 	for _, routeRow := range allRoutes {