diff --git a/public/example.html b/public/example.html
index ca01f6d..bdc7382 100644
--- a/public/example.html
+++ b/public/example.html
@@ -1,30 +1,82 @@
-<form id="airport-search-form">
-	<input type="text" id="q" name="q" />
-	<button type="submit" name="Los" title="Los">Los</button>
-</form>
-<div id="airport-results"></div>
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>calco2la.to API client example</title>
+    <style>
+      #wrapper {
+        max-width: 40em;
+        height: 100%;
+        margin: 0em auto;
+      }
+      #airport-results, #flight-results {
+        min-height: 5em;
+        border: 1px solid grey;
+        margin: 1em auto;
+      }
+    </style>
+  </head>
+  <body>
+    <div id="wrapper">
+      <h1>Search for airports</h1>
+      <form id="airport-search-form">
+        <input type="text" id="q" name="q" />
+        <button type="submit" name="Los" title="Los">Search ...</button>
+      </form>
+      <div id="airport-results">
+        <ul id="airport-list"></ul>
+      </div>
+      <h1>Calculate flight</h1>
+      <form id="flight-search-form">
+        <input type="text" id="departure" name="departure" />
+        <input type="text" id="arrival" name="arrival" />
+        <input type="date" id="departuredate" name="departuredate" value="2025-09-26" min="2017-01-01" max="2025-12-31" />
+        <select id="cabinclass" name="cabinclass">
+          <option value="economy">Economy</option>
+          <option value="premium_economy">Business Economy</option>
+          <option value="business">Business</option>
+          <option value="first">First</option>
+        </select>
+        <button type="submit" name="Los" title="Los">Calculate ...</button>
+      </form>
+      <div id="flight-results">
+        <pre id="flight-output"></pre>
+      </div>
+    </div>
 
-<script type="module">
-  import { Calco2latoClient } from '/js/calco2lato.js';
+    <script type="module">
+      import { Calco2latoClient } from '/js/calco2lato.js';
 
-  const api = new Calco2latoClient('/api-proxy.php');
+      const api = new Calco2latoClient('/api-proxy.php');
 
-  const form = document.querySelector('#airport-search-form');
-  const list = document.querySelector('#airport-results');
+      const searchform = document.querySelector('#airport-search-form');
+      const list = document.querySelector('#airport-list');
 
-  form.addEventListener('submit', async (e) => {
-    e.preventDefault();
-    list.innerHTML = 'Loading…';
-    try {
-      const q = new FormData(form).get('q');
-      const airports = await api.searchAirports(q, 10, 1);
-      list.innerHTML = airports.map(a => `<li>${a.display}</li>`).join('');
-    } catch (err) {
-      list.innerHTML = `<li style="color:red">${err.message}</li>`;
-    }
-  });
+      searchform.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        list.innerHTML = 'Loading…';
+        try {
+          const q = new FormData(searchform).get('q');
+          const airports = await api.searchAirports(q, 10, 1);
+          list.innerHTML = airports.map(a => `<li>${a.display}</li>`).join('');
+        } catch (err) {
+          list.innerHTML = `<li style="color:red">${err.message}</li>`;
+        }
+      });
 
-  // Example flight estimate:
-  // const est = await api.estimateFlight({ origin: 'FRA', destination: 'LHR', pax: 1, cabin: 'economy' });
-  // console.log(est.summary());
-</script>
+      const flightform = document.querySelector('#flight-search-form');
+      const flightresult = document.querySelector('#flight-output');
+
+      flightform.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        flightresult.innerHTML = 'Loading…';
+        try {
+          const f = new FormData(flightform);
+          const flight = await api.estimateFlight({"flights": [{"departure": f.get('departure'), "arrival": f.get('arrival'), "passengerCount": 1, "travelClass": f.get('cabinclass'), "departureDate": f.get('departuredate')}]});
+          flightresult.innerHTML = JSON.stringify(flight, null, 2);
+        } catch (err) {
+          flightresult.innerHTML = `<span style="color:red">${err.message}</span>`;
+        }
+      });
+    </script>
+  </body>
+</html>
\ No newline at end of file
diff --git a/public/js/calco2lato.js b/public/js/calco2lato.js
index 9ae5299..1a7d868 100644
--- a/public/js/calco2lato.js
+++ b/public/js/calco2lato.js
@@ -17,8 +17,8 @@ export class Flight {
   }
   summary() {
     const s = [];
-    if (this.origin?.iata)  s.push(this.origin.iata);
-    if (this.destination?.iata) s.push(this.destination.iata);
+    if (this.departureAirport?.iata)  s.push(this.departureAirport.iata);
+    if (this.arrivalAirport?.iata) s.push(this.arrivalAirport.iata);
     const route = s.length ? s.join(' → ') : 'Flight';
     const co2 = this.emissions?.co2_total ?? this.co2 ?? null;
     return co2 != null ? `${route}: ${co2} kg CO₂e` : route;
diff --git a/src/Calco2latoApiClient.php b/src/Calco2latoApiClient.php
index 978f28b..c60bf23 100644
--- a/src/Calco2latoApiClient.php
+++ b/src/Calco2latoApiClient.php
@@ -86,6 +86,6 @@ final class Calco2latoApiClient
      */
     public function flightEstimate(array $params): array
     {
-        return $this->request('POST', '/latest/transport/flights', [], $params);
+        return $this->request('POST', '/latest/transport/flight', [], $params);
     }
 }
