Enter two airports to get the distance between them in miles, kilometers and nautical miles. Then set your airline’s earning rate to see how many miles the trip earns. Add more stops for a multi-city itinerary, or switch on round trip to count the flight home.
Earning rates differ by airline program and fare code. Check your program’s earning chart and enter the percentage it lists for your fare.
Enter at least two airports to see the distance.
How this is calculated
- Distance is the great-circle (shortest path over the Earth’s surface) distance between airport coordinates, calculated on the WGS84 ellipsoid (the model GPS uses) with Vincenty’s formulae. For the rare near-opposite pairs where that method cannot converge, it falls back to the spherical haversine formula with a 6,371.0088 km radius.
- 1 km = 0.621371192 statute miles. 1 nautical mile = 1.852 km.
- Each segment is rounded to the nearest whole unit, then the totals add up the rounded segments, so the table always sums correctly.
- Base miles per segment = distance in miles x earning rate, rounded, with your minimum applied if it is higher. The elite bonus is a percentage of the base miles, rounded per segment.
- Airport names and coordinates come from OurAirports (public domain). This snapshot holds airports that have an IATA code and scheduled passenger service.
Limits to know about. Airlines often credit miles using their own distance tables, so a credited amount can differ slightly from this result. Several large programs, including the major US airline programs, now award miles by fare spend rather than distance; this tool does not apply to those. Always confirm with your airline program before booking.
Airport data snapshot: October 2, 2026. Source: OurAirports.
How to use the calculator
- Type an airport code, city or airport name in the first box and pick it from the list. You can also type a 3-letter IATA code such as TLV or JFK.
- Enter your arrival airport. Use “Add another stop” for connections or multi-city trips, up to six airports in total.
- Tick “Round trip” if you are flying the same route back.
- Choose the earning rate your airline lists for your fare. Add an elite bonus percentage if your status gives one, and a minimum per segment if your program sets one.
- Read the per-segment table, then use “Copy results” to paste the numbers wherever you need them.
How the distance is calculated
The calculator measures the shortest path over the Earth’s surface between the coordinates of the two airports, known as the great-circle distance. It uses the WGS84 model of the Earth, the same model GPS uses. For example, New York JFK to London Heathrow comes out at 3,452 miles, and Los Angeles to Sydney at 7,488 miles.
Airport names and coordinates come from OurAirports, a public domain dataset. The calculator holds 4,008 airports that have an IATA code and scheduled passenger service, based on a snapshot taken on October 2, 2026. The results were checked against an independent geodesic library on 550 routes, and every route under 12,000 miles matched within one mile.
Distance-based miles versus spend-based miles
Not every program awards miles by distance. Several large programs, including the major US airline programs, now award miles based on what you pay for the ticket. This calculator is for programs that award miles from the distance flown and a percentage tied to your fare, and for tracking flown distance. Always check your program’s current earning chart before you book.
Frequently asked questions
Why is the mileage my airline credited different from this result?
Airlines often calculate distance from their own tables, round segments differently, or apply fare-class rules and promotions that change the earning rate. A difference of a few miles is common. A large gap usually points to a different earning rate or a spend-based program.
What earning rate should I enter?
Look up your fare class or fare brand in your airline program’s earning chart. The chart lists a percentage of the flown distance, such as 50%, 100% or 150%. Enter that number, or pick it from the list.
Is this the same as the distance the plane actually flies?
No. This is the straight-line shortest path. Planes follow air routes, avoid restricted airspace and adjust for weather and winds, so the distance actually flown is usually longer.
Does it work for multi-city trips?
Yes. Add up to six airports in order. The table shows each segment and the totals.
Why can’t I find my airport?
The list covers airports with an IATA code and scheduled passenger service. Private airfields, heliports and airports without scheduled flights are not included. Try the 3-letter IATA code or the city name.
How current is the airport data?
The data is a snapshot from October 2, 2026. New airports and code changes after that date will not appear until the data is refreshed.