Airport Distance Calculator
Compare two airport locations with a great-circle distance in kilometres and miles, plus a rough airborne-time reference.
By Aryan Khan, Founder & Editor · Updated October 2026
For example, New York JFK to Los Angeles LAX measures approx. 3,974 km (2,470 miles) on the great circle — the shortest surface path between the two runways' cities, before airways and weather add their share.
How to use Airport Distance Calculator
Two airports, one baseline number — the figure airlines, mileage programs and route planners all start from:
The Airport Distance Calculator compares two airports by the shortest path between them — the great-circle distance — and reports it in kilometres and miles with a rough airborne-time reference. Search by airport name or code, and treat the result as the geographic baseline every flight route is longer than.
- 1Search for the departure airport.
- 2Search for the arrival airport.
- 3Read distance in kilometres and miles.
What people use Airport Distance Calculator for
1. Mileage and points planning
Award charts and mileage runs are priced on distance. Checking the great-circle figure between two airports tells you what a ticket should earn before you trust a booking page's estimate.
2. Route feasibility sketches
Before asking whether a non-stop exists — the Airport Route Finder answers that — the distance tells you whether the hop is a regional shuttle or a long-haul commitment for crew, aircraft and fuel.
3. Comparing two candidate airports
Cities with several airports (New York, London, Paris) reward a distance check: the nearer airport to your meeting is not always the one with the shorter flight. Run both pairs and compare totals, not just air time.
4. Teaching and coursework
Airport pairs make great-circle geometry concrete — the numbers are real, the airports are findable on any map, and the curved route surprises every class the first time.
Worked examples
JFK to LAX: approx. 3,974.3 km (2,469.5 mi), initial bearing 273.8° — almost due west, bending north as the route progresses. Chicago O'Hare to Dallas/Fort Worth is a shorter domestic hop: approx. 1,290.0 km (801.6 mi).
London Heathrow to Paris Charles de Gaulle is only approx. 347.0 km (215.6 mi) — a distance many travellers drive — while Heathrow to Frankfurt stretches to approx. 653.5 km (406.1 mi). Short European sectors are where airport choice changes the trip most.
Popular airport pairs
Great-circle distances between major airports from their published coordinates, computed with the site's haversine model (R = 6,371.0088 km) — approx. baselines, not flown route mileage.
| Pair | Kilometres | Miles | Initial bearing |
|---|---|---|---|
| New York JFK ↔ Los Angeles LAX | 3,974.3 | 2,469.5 | 273.8° |
| New York JFK ↔ London Heathrow | 5,540.0 | 3,442.4 | 51.4° |
| London Heathrow ↔ Paris CDG | 347.0 | 215.6 | 140.9° |
| Chicago O'Hare ↔ Dallas/Fort Worth | 1,290.0 | 801.6 | 221.5° |
| San Francisco ↔ Chicago O'Hare | 2,964.0 | 1,841.8 | 69.7° |
| Miami ↔ New York JFK | 1,756.9 | 1,091.7 | 18.4° |
| London Heathrow ↔ Frankfurt | 653.5 | 406.1 | 100.6° |
| Paris CDG ↔ Frankfurt | 448.8 | 278.9 | 73.0° |
Bearings are the initial great-circle heading from the first airport; the heading changes continuously along the curved route.
Compare airports using the same geographic baseline
Airport-to-airport distance is often useful before comparing connections, repositioning flights or long-haul alternatives. This page measures the great-circle distance between the locations you select and keeps road distance separate from air distance.
For operational aviation work, published procedures and actual flight plans are authoritative. The MapBench value is best treated as a transparent geographic reference for travel research, education and quick comparisons.
How to interpret the result
The most common errors come from using a correct result to answer the wrong geographic question. Keep these points in mind for Airport Distance Calculator:
- Use the midpoint tool instead of averaging coordinates when splitting journeys: latitude/longitude averages distort over long legs and fail across the date line, while the spherical midpoint follows the actual path the distance was measured along.
- Always confirm which distance you need before quoting one: straight-line for physical questions, road distance for driving, and network time for schedules. The three can differ by half again in mountainous or island geography, and quoting the wrong one is the most common distance mistake in reports.
Limits & appropriate use
The honest limits here are about category, not quality: great-circle math is near-exact, but it answers 'how far over the surface', not 'how far as driven, flown or walked'. Airline distances follow airways and winds; odometers follow detours; hikers follow switchbacks. Quoting a straight-line number into a fuel budget is the classic misuse, which is why the tools keep the ladder visible — crow-flies, road, time — and label each rung. A second limit is definitional: 'city to city' means mapped centre to mapped centre, and a suburb-to-airport question is a different measurement wearing the same sentence.
Within those bounds the numbers are durable: reproducible from coordinates alone, stable across tools that use the same radius convention, and accurate to a fraction of a percent of geodetic truth. The escalation path is short and rarely needed — ellipsoidal libraries (Karney's algorithms) for survey-grade millimetres, the routing engine for network truth, and the airline's schedule for invoice truth. Knowing which authority owns which number is the entire craft of distance literacy.
- Survey-grade millimetres → ellipsoidal geodesic libraries, not sphere math.
- Fuel and schedule planning → road routing plus your congestion buffer.
- Airline invoicing → carrier distance tables (airways ≠ great circles).
Data & methodology
Great-circle distance from the selected airport coordinates using the haversine formula.
For source details, licences and model limitations, see Data Sources and Methodology.
Key terms worth knowing
- Initial bearing
- Compass angle from true north at departure along a great circle.
- Geodesic
- The ellipsoid-true shortest path; haversine approximates it within ~0.3%.
Editorial guidance: MapBench explains the method and limitations so the tool can be used as a transparent reference, not as a black-box answer. For legal boundaries, safety-critical routing, surveying, engineering, regulated decisions or official statistics, verify the result with the responsible authority or a qualified professional.
Category: Distance & Bearing. Results are intended for everyday analysis and planning unless a page explicitly states otherwise.
Method, assumptions & limits
- This tool’s method
- Great-circle distance from the selected airport coordinates using the haversine formula.
- Before relying on the answer
- Keep the endpoints and measurement mode fixed when comparing results. A surface separation, a compass bearing and a road distance are different outputs.
- What the result cannot establish
- A rounded coordinate or a city-centre search changes the endpoints. Do not interpret displayed decimal places as survey accuracy.
Coverage: Major airports. Search, basemap and external data requests may use third-party services; browser-based does not mean every operation is offline. Read the source and licence notes, calculation methodology and privacy policy. If a result looks inconsistent, report a correction with the inputs and mode used.
Frequently asked questions
Clear answers about the calculation, accuracy and appropriate use.
Does it use road distance?
No. This page is for air/great-circle distance. Use the driving-distance tool for roads.
Are airport runway routings included?
No. The calculation uses the selected location coordinates, not actual departure and arrival procedures.
How accurate is this distance?
The geometric calculation is suitable for planning and comparison, but the answer is only as accurate as the coordinates you provide. Road, terrain and legal distances can differ.
Can I use coordinates instead of place names?
Yes. Where the tool accepts locations, you can paste latitude and longitude directly for a more explicit input.
Why can this differ from Google Maps or a road route?
Straight-line and geodesic tools measure geometry on Earth, while road-routing tools follow an actual transport network. They answer different questions.
Why is the flown distance longer than this figure?
Aircraft follow airways, departure and arrival procedures, and weather-avoidance paths — none of which is the geometric minimum. This calculator reports the baseline great-circle distance; an airline's published mileage for the same pair is normally a few percent higher.
Can I enter IATA codes directly?
Yes — search accepts airport names and three-letter codes such as JFK, LAX or LHR. If two airports share a name fragment, pick from the matched list so the coordinates are the right ones.
What does the airborne-time reference assume?
A simple cruise-speed reference for scale only. It ignores climb, descent, taxi and winds, so use it to compare pairs — never to plan a connection.
Are small regional airports included?
The search covers the airport dataset the site ships, which favours airports with scheduled service and published coordinates. A private strip without a listing can still be measured by entering its coordinates in a point-to-point tool.
Is the distance measured runway to runway?
It is measured between the airports' published reference coordinates — effectively airport centre to airport centre. For city-scale planning that is the meaningful figure; runway thresholds differ by a kilometre or two at large fields.
Can I find the midpoint between two airports?
Yes — the Airport Midpoint by Coordinates tool applies the same spherical geometry and returns the halfway point of the pair.
Why does the bearing from A to B not simply reverse?
On a sphere the return initial bearing is not the outward bearing plus 180°, because the great circle is followed in the opposite direction from a different starting geometry. JFK to LAX starts at 273.8°; LAX to JFK starts at 65.9°, not 93.8°.
Related tools and resources
Found a pair worth flying? Check whether a non-stop exists in the Airport Route Finder, find the halfway point with Airport Midpoint by Coordinates, or switch to cities instead of airports in the Flight Distance Calculator.
More free tools
Sources, methodology & editorial trust
- ✓ Browser-first processing where supported
- ✓ External sources are documented
- ✓ No account required for public tools
- ✓ Review data sources
Calculations are documented with their assumptions, limitations and source context rather than presented as unexplained answers.
Reviewed and maintained by Aryan Khan, Founder & Editor of MapBench.
Part of our distance calculators hub
Airport Distance Calculator sits in the distance calculators cluster, alongside 28 other tools that answer neighbouring questions with different methods or datasets.
You may also need
When this answer is only part of the job, these clusters cover the next step.
Read the guide behind this tool
Distance Calculation: Haversine, Geodesics & When It Matters — Why flat map arithmetic fails over large distances, what the haversine formula does, and when a full ellipsoidal geodesic is the better choice.