Korean Air (LHR) Routes API

You need a reliable way to extract, track, and analyze Korean Air (KE) routes touching London Heathrow (LHR) so you can power route maps, flight status pages, and operational dashboards. By the end of this guide, you’ll call the FlightLabs schedules endpoint for KE, filter results for LHR, and combine schedules with real-time status to present accurate routes, terminals, gates, and timing information in your app—using straightforward REST requests and JSON you can ship today.

Korean Air (KE) and why developers care about LHR routing

Korean Air (IATA: KE) is the flag carrier of South Korea. Its primary hub is Seoul Incheon. For developers, KE’s long-haul service to and from London Heathrow (LHR) is a high-value corridor for consumer travel apps, corporate travel platforms, and airport display systems that need consistent schedule and live status data.

Which FlightLabs endpoints matter for KE routes via LHR

FlightLabs exposes several endpoints you can compose to deliver KE routes, schedules, and live updates. Because “routes” are ultimately origin–destination pairs, you can source them from schedules and enrich them with real-time data as needed.

Explore the platform overview at https://www.goflightlabs.com and the interactive console at MCP to trial queries quickly.

Pull KE schedules, then filter to LHR

The schedules endpoint is the most direct way to enumerate KE’s current and future operations. You can request schedules for airline IATA KE and then filter for LHR in your application logic. Timestamps are ISO 8601 in UTC in the examples below.

curl: Get schedules for KE

This request queries the schedules dataset by airline. The response is typically paginated or time-scoped by the provider; if you need multiple days, iterate your requests by date ranges or consult the docs for pagination details.

curl -s "https://app.goflightlabs.com/advanced-flights-schedules?access_key=YOUR_API_KEY&iataCode=LHR&type=departure"

Example JSON response (official values)

The following shows the shape you can expect for schedules. Values are official; use them to wire up your parsing logic.

{"success":true,"type":"departure","data":[{"airline_iata":"KU","airline_icao":"KAC","flight_iata":"KU102","flight_icao":"KAC102","flight_number":"102","dep_iata":"LHR","dep_icao":"EGLL","dep_terminal":"4","dep_gate":"7","dep_time":"2026-09-30 16:45","dep_time_utc":"2026-09-30 15:45","dep_estimated":"2026-09-30 15:52","dep_estimated_utc":"2026-09-30 14:52","dep_actual":"2026-09-30 15:52","dep_actual_utc":"2026-09-30 14:52","arr_iata":"KWI","arr_icao":"OKKK","arr_terminal":"4","arr_gate":null,"arr_baggage":null,"arr_time":"2026-10-01 01:05","arr_time_utc":"2026-09-30 22:05","cs_airline_iata":null,"cs_flight_number":null,"cs_flight_iata":null,"status":"active","duration":380,"delayed":null,"dep_delayed":null,"arr_delayed":null,"aircraft_icao":null,"arr_time_ts":1790805900,"dep_time_ts":1790783100,"dep_estimated_ts":1790779920,"dep_actual_ts":1790779920},{"airline_iata":"AA","airline_icao":"AAL","flight_iata":"AA7147","flight_icao":"AAL7147","flight_number":"7147","dep_iata":"LHR","dep_icao":"EGLL","dep_terminal":"5","dep_gate":"B44","dep_time":"2026-09-30 16:30","dep_time_utc":"2026-09-30 15:30","dep_estimated":"2026-09-30 16:27","dep_estimated_utc":"2026-09-30 15:27","dep_actual":"2026-09-30 16:27","dep_actual_utc":"2026-09-30 15:27","arr_iata":"EDI","arr_icao":"EGPH","arr_terminal":null,"arr_gate":null,"arr_baggage":null,"arr_time":"2026-09-30 18:00","arr_time_utc":"2026-09-30 17:00","arr_estimated":"2026-09-30 17:39","arr_estimated_utc":"2026-09-30 16:39","arr_actual":"2026-09-30 17:39","arr_actual_utc":"2026-09-30 16:39","cs_airline_iata":"BA","cs_flight_number":"1456","cs_flight_iata":"BA1456","status":"landed","duration":90,"delayed":null,"dep_delayed":null,"arr_delayed":null,"aircraft_icao":null,"arr_time_ts":1790787600,"dep_time_ts":1790782200,"arr_estimated_ts":1790786340,"dep_estimated_ts":1790782020,"arr_actual_ts":1790786340,"dep_actual_ts":1790782020},{"airline_iata":"AS","airline_icao":"ASA","flight_iata":"AS5267","flight_icao":"ASA5267","flight_number":"5267","dep_iata":"LHR","dep_icao":"EGLL","dep_terminal":"5","dep_gate":"C63","dep_time":"2026-09-30 16:30","dep_time_utc":"2026-09-30 15:30","dep_estimated":"2026-09-30 16:27","dep_estimated_utc":"2026-09-30 15:27","dep_actual":"2026-09-30 16:27","dep_actual_utc":"2026-09-30 15:27","arr_iata":"SEA","arr_icao":"KSEA","arr_terminal":null,"arr_gate":null,"arr_baggage":null,"arr_time":"2026-09-30 18:25","arr_time_utc":"2026-10-01 01:25","cs_airline_iata":"BA","cs_flight_number":"49","cs_flight_iata":"BA49","status":"active","duration":595,"delayed":null,"dep_delayed":null,"arr_delayed":null,"aircraft_icao":null,"arr_time_ts":1790817900,"dep_time_ts":1790782200,"dep_estimated_ts":1790782020,"dep_actual_ts":1790782020},{"airline_iata":"EI","airline_icao":"EIN","flight_iata":"EI8749","flight_icao":"EIN8749","flight_number":"8749","dep_iata":"LHR","dep_icao":"EGLL","dep_terminal":"5","dep_gate":"C63","dep_time":"2026-09-30 16:30","dep_time_utc":"2026-09-30 15:30","dep_estimated":"2026-09-30 16:27","dep_estimated_utc":"2026-09-30 15:27","dep_actual":"2026-09-30 16:27","dep_actual_utc":"2026-09-30 15:27","arr_iata":"SEA","arr_icao":"KSEA","arr_terminal":null,"arr_gate":null,"arr_baggage":null,"arr_time":"2026-09-30 18:25","arr_time_utc":"2026-10-01 01:25","cs_airline_iata":"BA","cs_flight_number":"49","cs_flight_iata":"BA49","status":"active","duration":595,"delayed":null,"dep_delayed":null,"arr_delayed":null,"aircraft_icao":null,"arr_time_ts":1790817900,"dep_time_ts":1790782200,"dep_estimated_ts":1790782020,"dep_actual_ts":1790782020},{"airline_iata":"AY","airline_icao":"FIN","flight_iata":"AY5449","flight_icao":"FIN5449","flight_number":"5449","dep_iata":"LHR","dep_icao":"EGLL","dep_terminal":"5","dep_gate":"C63","dep_time":"2026-09-30 16:30","dep_time_utc":"2026-09-30 15:30","dep_estimated":"2026-09-30 16:27","dep_estimated_utc":"2026-09-30 15:27","dep_actual":"2026-09-30 16:27","dep_actual_utc":"2026-09-30 15:27","arr_iata":"SEA","arr_icao":"KSEA","arr_terminal":null,"ar…

Fields you will use most:

• flight_number: Your primary flight identifier when aggregating routes and linking to live status.
• departure.airport and arrival.airport: Determine whether LHR is origin or destination.
• departure.scheduled and arrival.scheduled: UTC ISO 8601; convert to local time zones for user display.
• terminal (if present): Useful for passenger-facing guidance and gate/terminal maps.
• airline.iata: Confirm the airline filter (KE) and support multi-airline queries later.
• aircraft.type: Optional display detail for enthusiasts and seat map integrations.

JavaScript: Filter KE schedules to LHR routes

This snippet calls the same endpoint, filters for any leg touching LHR, and shapes output for a route map or a flight list. It also demonstrates a simple UTC-to-local conversion at render time (you can replace this with your preferred library).

async function fetchKeLhrSchedules(apiKey) {
  const url = new URL("https://api.goflightlabs.com/flights-schedules");
  url.searchParams.set("iataCode", "KE");
  url.searchParams.set("type", "airline");
  url.searchParams.set("api_key", apiKey);

  const res = await fetch(url.toString());
  if (!res.ok) {
    throw new Error(`HTTP ${res.status}`);
  }
  const json = await res.json();
  if (!json.success || !json.data || !Array.isArray(json.data.schedules)) {
    throw new Error("Unexpected response shape");
  }

  // Keep only flights where LHR is arrival or departure.
  const lhrFlights = json.data.schedules.filter(s => {
    const dep = s.departure && s.departure.airport;
    const arr = s.arrival && s.arrival.airport;
    return dep === "LHR" || arr === "LHR";
  });

  // Map to a simple model your UI can render.
  return lhrFlights.map(s => {
    const depTimeUtc = s.departure?.scheduled;
    const arrTimeUtc = s.arrival?.scheduled;

    return {
      airlineIata: s.airline?.iata,
      flightNumber: s.flight_number,
      origin: s.departure?.airport,
      destination: s.arrival?.airport,
      depTerminal: s.departure?.terminal || null,
      arrTerminal: s.arrival?.terminal || null,
      depTimeUtc,
      arrTimeUtc,
      // Example local conversion; replace "en-GB" with user locale
      depTimeLocal: depTimeUtc ? new Date(depTimeUtc).toLocaleString("en-GB") : null,
      arrTimeLocal: arrTimeUtc ? new Date(arrTimeUtc).toLocaleString("en-GB") : null,
      aircraftType: s.aircraft?.type || null
    };
  });
}

// Example usage:
fetchKeLhrSchedules("YOUR_API_KEY")
  .then(data => console.log("KE-LHR schedules:", data))
  .catch(err => console.error(err));

Enrich KE–LHR routes with live status, terminals, and gates

Schedules give you the plan; real-time data gives you the execution. After you identify a KE flight number that touches LHR, call the real-time endpoint to obtain the current status, estimated times, and any gate or terminal information available. Below is the response shape you’ll integrate against for live updates:

How to use these fields:

• status: Detect “scheduled,” “active/en-route,” “landed,” “cancelled,” or “diverted” states for alerting and UI badges.
• departure.actual vs departure.scheduled: Compute pushback or off-block delay.
• arrival.estimated vs arrival.scheduled: Show ETA drift and surface that to ops teams or travelers.
• terminal and gate: Present wayfinding info when available; fall back to schedule’s terminal if live data is missing.
• position: Update live map for any in-flight KE–LHR service.

You can explore endpoint behavior and schema details in the Documentation and test requests in the MCP. The product overview is also available at https://www.goflightlabs.com.

Practical implementation details that save time

Time zones and UTC

• All example timestamps are ISO 8601 (e.g., 2024-11-03T20:00:00Z) and represent UTC.
• Convert to the user’s local time zone for display. For LHR-facing UIs, Europe/London observes daylight saving; if you need explicit time zone conversions, resolve airport local time zones before rendering.
• For analytics (e.g., delay calculations), keep computations in UTC to avoid DST edge cases.

Polling and caching strategy

• Schedules: Cache KE schedules for at least several minutes. They are relatively static intra-day; refresh by rolling window or at set intervals aligned with your UI needs.
• Real-time status: Poll more frequently only for flights departing within ~3 hours or en route to LHR. Use conditional fetch or backoff when status is terminal (landed/cancelled) to reduce calls.
• Combine responses: Use schedule data as your base model and patch in real-time fields (status, actual/estimated times, terminal/gate) when available.

Handling cancelled or diverted flights

• Use data.flight.status to branch UI logic. For “cancelled,” gray out the row and suppress gates; for “diverted,” flag destination change and avoid mapping lines to LHR.
• When a flight is cancelled, maintain the original schedule entry for historical display, but suppress notifications that assume movement.
• Downstream workflows (ground transport, hotel arrivals) should use arrival.estimated in real time and fall back to arrival.scheduled when estimation is missing.

Pagination and batching for schedules

• If the schedules response spans large datasets, implement iteration via the parameters documented for your account tier, or split requests by date ranges (e.g., daily or hourly windows).
• Store processed flight_numbers with a short TTL to avoid double-processing when paginating.
• For route-level analytics (ICN–LHR pairs), it’s sufficient to hash the origin–destination pair to deduplicate across multiple flight numbers or days when you only need the route map.

Use cases developers ship with KE–LHR data

1) Flight status pages for KE–LHR

Combine schedules (flight_number, departure/arrival airports, scheduled times) with real-time status (status, actual/estimated, terminal, gate). Poll real-time more aggressively only around departure/arrival windows. If status is “cancelled,” mark the row and cease polling.

2) Delay monitoring and notifications

Compute delays as follows:

• Departure delay: departure.actual minus departure.scheduled (real-time).
• Arrival delay: arrival.estimated minus arrival.scheduled (real-time).

Trigger notifications based on thresholds (e.g., ≥ 15 minutes). Keep UTC in calculations and convert to local for messaging. If live fields are missing, fall back to schedule-only display and suppress alerts.

3) Route analysis for KE at LHR

From schedules, group by origin–destination to list KE routes that include LHR. Add aircraft.type to profile equipment per route. Store daily aggregates to power charts (e.g., frequency by day of week) without guessing any data not provided by the API.

Step-by-step: Build a KE–LHR route list in your app

1) Fetch KE schedules

Use the earlier curl or JavaScript example to obtain all available KE schedules: iataCode=KE&type=airline.

2) Filter for LHR

Client-side or server-side, filter to records where departure.airport === "LHR" or arrival.airport === "LHR". Retain flight_number and scheduled times for your UI and caches.

3) Optionally enrich with live status

For flights inside a near-term window, call the real-time endpoint using the iata flight value (e.g., "KE907") to retrieve status, actual/estimated timestamps, and gates/terminals. Patch these into your KE–LHR models.

4) Render and cache

• Store schedules for a modest TTL (e.g., 5–15 minutes; adjust based on your plan and UI needs).
• Store live results for a shorter TTL (e.g., 30–90 seconds) for flights that are “en-route” or at gate.
• Expire live polling once status transitions to “landed” or “cancelled.”

Production checklist for KE–LHR integrations

• Normalize airport codes: Always compare using IATA codes ("LHR", "ICN") exactly.
• Time handling: Store all times in UTC internally; convert for display only.
• Error handling: If json.success is false or the expected arrays are missing, log and retry with backoff.
• Partial fields: Not all schedules include terminals or aircraft registration; code defensively for missing fields.
• Codeshares: If your UI shows marketing vs operating carriers, plan to reconcile by flight_number and airline.iata when multiple entries represent the same physical leg.

Business and pricing notes for planning

FlightLabs offers a Starter plan at $24.99/month and a trial option (7 days or 50 requests). Choose your polling and caching strategies accordingly to stay within your quota while preserving data freshness for KE–LHR. For complete plan details and request quotas, see the official site.

End-to-end example: From KE schedules to a live LHR board

1. Server-side cron or worker fetches /flights-schedules for KE every few minutes and writes a cache keyed by flight_number + date.
2. API layer exposes a /ke-lhr endpoint that reads the cache and filters by LHR in either departure.airport or arrival.airport.
3. Frontend calls /ke-lhr; for flights departing within 3 hours or currently en-route, it triggers real-time fetches by flight IATA to get status, gates, and ETA.
4. UI displays per-flight cards:
   • Top row: KE + flight_number + status
   • Mid: origin → destination, terminals/gates
   • Bottom: scheduled vs actual/estimated times, with delay delta

Why use schedules as the anchor for KE routes at LHR

Routes are inherently an origin–destination concept. Schedules provide the authoritative pair via departure.airport and arrival.airport, plus timing for each occurrence. You can then rely on real-time only where needed to update status, times, terminals, and gates. This approach keeps your app responsive and your quota usage predictable, while ensuring travelers and operations teams see accurate information for KE services touching LHR.

Get your API key and start building

Sign up to call the endpoints used above. You can create an account and retrieve your key here: Register. Then head to the Documentation to confirm parameters, pagination behavior, and response fields for your plan, and test everything in MCP.

FAQ

• How do I filter KE schedules to only LHR without extra API parameters? Use iataCode=KE&type=airline to fetch KE schedules, then filter client- or server-side where departure.airport === "LHR" or arrival.airport === "LHR".
• How do I detect delays and cancellations? Compare departure.actual vs departure.scheduled and arrival.estimated vs arrival.scheduled from the real-time endpoint. Use data.flight.status to branch for “cancelled” or “diverted.”
• What time zone are the timestamps in? The examples are ISO 8601 in UTC (with Z). Convert to local time zones for display (e.g., Europe/London for LHR), but keep storage and arithmetic in UTC.
• How frequently should I poll? Cache schedules and refresh on a multi-minute interval. Poll real-time more frequently only for flights within a near-departure/arrival window or en-route, then back off post-landing.
• Can I list future KE–LHR services for planning? Yes. Use the Future Flights endpoint to preview upcoming services and stitch them into your schedule cache. Refer to the docs for the specific parameters and fields returned.