diff --git a/httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/HttpAsyncClients.java b/httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/HttpAsyncClients.java
index dab74fd04..025f82944 100644
--- a/httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/HttpAsyncClients.java
+++ b/httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/HttpAsyncClients.java
@@ -28,7 +28,9 @@
 package org.apache.hc.client5.http.impl.async;
 
 import org.apache.hc.client5.http.DnsResolver;
+import org.apache.hc.client5.http.SchemePortResolver;
 import org.apache.hc.client5.http.SystemDefaultDnsResolver;
+import org.apache.hc.client5.http.impl.DefaultSchemePortResolver;
 import org.apache.hc.client5.http.impl.nio.PoolingAsyncClientConnectionManagerBuilder;
 import org.apache.hc.client5.http.nio.AsyncClientConnectionManager;
 import org.apache.hc.client5.http.ssl.H2TlsStrategy;
@@ -127,7 +129,8 @@ private static MinimalHttpAsyncClient createMinimalHttpAsyncClientImpl(
             final AsyncPushConsumerRegistry pushConsumerRegistry,
             final HttpVersionPolicy versionPolicy,
             final IOReactorConfig ioReactorConfig,
-            final AsyncClientConnectionManager connmgr) {
+            final AsyncClientConnectionManager connmgr,
+            final SchemePortResolver schemePortResolver) {
         return new MinimalHttpAsyncClient(
                 eventHandlerFactory,
                 pushConsumerRegistry,
@@ -135,7 +138,8 @@ private static MinimalHttpAsyncClient createMinimalHttpAsyncClientImpl(
                 ioReactorConfig,
                 new DefaultThreadFactory("httpclient-main", true),
                 new DefaultThreadFactory("httpclient-dispatch", true),
-                connmgr);
+                connmgr,
+                schemePortResolver);
     }
 
     /**
@@ -169,7 +173,8 @@ public AsyncPushConsumer create(final HttpRequest request, final HttpContext con
                 pushConsumerRegistry,
                 versionPolicy,
                 ioReactorConfig,
-                connmgr);
+                connmgr,
+                DefaultSchemePortResolver.INSTANCE);
     }
 
     /**
diff --git a/httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/MinimalHttpAsyncClient.java b/httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/MinimalHttpAsyncClient.java
index 684b03778..09a54b6e8 100644
--- a/httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/MinimalHttpAsyncClient.java
+++ b/httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/MinimalHttpAsyncClient.java
@@ -35,14 +35,17 @@
 import java.util.concurrent.atomic.AtomicInteger;
 
 import org.apache.hc.client5.http.HttpRoute;
+import org.apache.hc.client5.http.SchemePortResolver;
 import org.apache.hc.client5.http.config.Configurable;
 import org.apache.hc.client5.http.config.RequestConfig;
 import org.apache.hc.client5.http.impl.ConnPoolSupport;
+import org.apache.hc.client5.http.impl.DefaultSchemePortResolver;
 import org.apache.hc.client5.http.impl.ExecSupport;
 import org.apache.hc.client5.http.impl.classic.RequestFailedException;
 import org.apache.hc.client5.http.nio.AsyncClientConnectionManager;
 import org.apache.hc.client5.http.nio.AsyncConnectionEndpoint;
 import org.apache.hc.client5.http.protocol.HttpClientContext;
+import org.apache.hc.client5.http.routing.RoutingSupport;
 import org.apache.hc.core5.concurrent.BasicFuture;
 import org.apache.hc.core5.concurrent.ComplexFuture;
 import org.apache.hc.core5.concurrent.FutureCallback;
@@ -76,6 +79,7 @@
 public final class MinimalHttpAsyncClient extends AbstractMinimalHttpAsyncClientBase {
 
     private final AsyncClientConnectionManager connmgr;
+    private final SchemePortResolver schemePortResolver;
     private final HttpVersionPolicy versionPolicy;
 
     MinimalHttpAsyncClient(
@@ -85,7 +89,8 @@ public final class MinimalHttpAsyncClient extends AbstractMinimalHttpAsyncClient
             final IOReactorConfig reactorConfig,
             final ThreadFactory threadFactory,
             final ThreadFactory workerThreadFactory,
-            final AsyncClientConnectionManager connmgr) {
+            final AsyncClientConnectionManager connmgr,
+            final SchemePortResolver schemePortResolver) {
         super(new DefaultConnectingIOReactor(
                 eventHandlerFactory,
                 reactorConfig,
@@ -102,8 +107,9 @@ public void execute(final IOSession ioSession) {
                 }),
                 pushConsumerRegistry,
                 threadFactory);
-        this.versionPolicy = versionPolicy != null ? versionPolicy : HttpVersionPolicy.NEGOTIATE;
         this.connmgr = connmgr;
+        this.schemePortResolver = schemePortResolver != null ? schemePortResolver : DefaultSchemePortResolver.INSTANCE;
+        this.versionPolicy = versionPolicy != null ? versionPolicy : HttpVersionPolicy.NEGOTIATE;
     }
 
     private Future<AsyncConnectionEndpoint> leaseEndpoint(
@@ -111,9 +117,10 @@ private Future<AsyncConnectionEndpoint> leaseEndpoint(
             final Timeout connectTimeout,
             final HttpClientContext clientContext,
             final FutureCallback<AsyncConnectionEndpoint> callback) {
+        final HttpRoute route = new HttpRoute(RoutingSupport.normalize(host, schemePortResolver));
         final ComplexFuture<AsyncConnectionEndpoint> resultFuture = new ComplexFuture<>(callback);
         final Future<AsyncConnectionEndpoint> leaseFuture = connmgr.lease(
-                new HttpRoute(host), null, connectTimeout,
+                route, null, connectTimeout,
                 new FutureCallback<AsyncConnectionEndpoint>() {
 
                     @Override