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Great Circle Mapper

This information may not be accurate or current and is not valid for navigation or flight planning. No warranty of fitness for any purpose is made or implied.
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The database of ETOPS alternate airports is incomplete. At rule-times less than 120 minutes, gaps may be visible which are artifacts of the database and not true ETOPS "no-go" areas.


From To Initial
Distance Time
LAX (33°56'33"N 118°24'29"W) LHR (51°28'39"N 00°27'41"W) 34° (NE) 8780 km 10:35
2 segment path: 15618 km 18:49
LGW (51°08'53"N 00°11'25"W) BKK (13°40'52"N 100°44'50"E) 73° (E) 9581 km 11:33
BKK (13°40'52"N 100°44'50"E) MRU (20°25'48"S 57°40'59"E) 232° (SW) 6037 km 7:16
JFK (40°38'24"N 73°46'43"W) BKK (13°40'52"N 100°44'50"E)  (N) 13964 km 16:49
Total: 38362 km 46:13

Try this map on the NEW Great Circle Mapper

Code   Source   Location
LAXFAALos Angeles [Intl], CA, US
LHRAIPLondon [Heathrow Airport], Middlesex, ENG, GB
LGWAIPLondon [Gatwick Airport], Surrey, ENG, GB
BKKDAFIFBangkok [Suvarnabhumi Bangkok Intl], 11, TH
MRUAIPMauritius (Plaine Magnien) [Sir Seewoosagur Ramgoolam Intl (Plaisance Airport)], MU
JFKFAANew York [John F Kennedy Intl], NY, US

(e.g., ORD-HKG, SFO-SYD, London-Tokyo)
(e.g., 8000nm@LHR, 1300nm@DAL)
Path Color
Path Distance
Min. Distance
Mark locations along path
Ground Speed or Mach
Range Style

Outline Color

Map Style



ETOPS Rule-Time
60 minutes
90 minutes
120 minutes
138 minutes
180 minutes
207 minutes
240 minutes
330 minutes

Locations may be specified using FAA, IATA, or ICAO airport codes, or by latitude and longitude. You can also search for a code:   

See the Great Circle Mapper FAQ for further information.

Get information about an airport code:   

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Copyright © 1996-2018, Karl L. Swartz. All rights reserved.
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Karl Swartz <karl@kls2.com>
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