A map from the Great Circle Mapper

From	To	Initial Heading		Magnetic Heading		Distance
Total:						75,415 mi
Average:						3,017 mi
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SAN (32°44'01"N 117°11'23"W)	LHR (51°28'39"N 0°27'41"W)	035034.5°	(NE)	024023.5°	(NE)	5,485 mi
2 segment path:
SAN (32°44'01"N 117°11'23"W)	SLC (40°47'18"N 111°58'40"W)	026026.0°	(NE)	015015.0°	(N)	626 mi
SLC (40°47'18"N 111°58'40"W)	LHR (51°28'39"N 0°27'41"W)	038038.0°	(NE)	027027.1°	(NE)	4,866 mi
						5,492 mi	(+0.1%)
2 segment path:
SAN (32°44'01"N 117°11'23"W)	DEN (39°51'42"N 104°40'23"W)	051051.3°	(NE)	040040.3°	(NE)	853 mi
DEN (39°51'42"N 104°40'23"W)	LHR (51°28'39"N 0°27'41"W)	041040.8°	(NE)	033033.4°	(NE)	4,670 mi
						5,523 mi	(+0.7%)
2 segment path:
SAN (32°44'01"N 117°11'23"W)	MSP (44°52'55"N 93°13'18"W)	050049.9°	(NE)	039038.9°	(NE)	1,532 mi
MSP (44°52'55"N 93°13'18"W)	LHR (51°28'39"N 0°27'41"W)	047047.2°	(NE)	047047.3°	(NE)	4,015 mi
						5,547 mi	(+1.1%)
2 segment path:
SAN (32°44'01"N 117°11'23"W)	ORD (41°58'37"N 87°54'29"W)	060059.8°	(NE)	049048.9°	(NE)	1,723 mi
ORD (41°58'37"N 87°54'29"W)	LHR (51°28'39"N 0°27'41"W)	048047.9°	(NE)	052051.8°	(NE)	3,953 mi
						5,676 mi	(+3.5%)
2 segment path:
SAN (32°44'01"N 117°11'23"W)	DTW (42°12'45"N 83°21'12"W)	061060.7°	(NE)	050049.7°	(NE)	1,956 mi
DTW (42°12'45"N 83°21'12"W)	LHR (51°28'39"N 0°27'41"W)	050049.5°	(NE)	057056.8°	(NE)	3,766 mi
						5,722 mi	(+4.3%)
2 segment path:
SAN (32°44'01"N 117°11'23"W)	JFK (40°38'24"N 73°46'43"W)	064064.5°	(NE)	053053.5°	(NE)	2,446 mi
JFK (40°38'24"N 73°46'43"W)	LHR (51°28'39"N 0°27'41"W)	051051.4°	(NE)	064064.0°	(NE)	3,451 mi
						5,897 mi	(+7.5%)
2 segment path:
SAN (32°44'01"N 117°11'23"W)	PHL (39°52'20"N 75°14'26"W)	066065.8°	(NE)	055054.9°	(NE)	2,370 mi
PHL (39°52'20"N 75°14'26"W)	LHR (51°28'39"N 0°27'41"W)	051050.5°	(NE)	062062.4°	(NE)	3,545 mi
						5,915 mi	(+7.8%)
2 segment path:
SAN (32°44'01"N 117°11'23"W)	DFW (32°53'50"N 97°02'16"W)	084084.0°	(E)	073073.0°	(E)	1,171 mi
DFW (32°53'50"N 97°02'16"W)	LHR (51°28'39"N 0°27'41"W)	042041.7°	(NE)	039038.9°	(NE)	4,750 mi
						5,921 mi	(+8.0%)
2 segment path:
SAN (32°44'01"N 117°11'23"W)	IAD (38°56'51"N 77°27'36"W)	068067.6°	(E)	057056.6°	(NE)	2,253 mi
IAD (38°56'51"N 77°27'36"W)	LHR (51°28'39"N 0°27'41"W)	049049.4°	(NE)	060059.9°	(NE)	3,677 mi
						5,929 mi	(+8.1%)
2 segment path:
SAN (32°44'01"N 117°11'23"W)	CLT (35°12'49"N 80°56'57"W)	075075.1°	(E)	064064.1°	(NE)	2,077 mi
CLT (35°12'49"N 80°56'57"W)	LHR (51°28'39"N 0°27'41"W)	047046.7°	(NE)	055054.6°	(NE)	3,992 mi
						6,069 mi	(+10.6%)
2 segment path:
SAN (32°44'01"N 117°11'23"W)	ATL (33°38'12"N 84°25'40"W)	079079.0°	(E)	068068.0°	(E)	1,892 mi
ATL (33°38'12"N 84°25'40"W)	LHR (51°28'39"N 0°27'41"W)	045045.2°	(NE)	051050.7°	(NE)	4,210 mi
						6,102 mi	(+11.3%)
2 segment path:
SAN (32°44'01"N 117°11'23"W)	IAH (29°59'04"N 95°20'29"W)	093092.5°	(E)	082081.5°	(E)	1,303 mi
IAH (29°59'04"N 95°20'29"W)	LHR (51°28'39"N 0°27'41"W)	041041.4°	(NE)	040039.6°	(NE)	4,834 mi
						6,137 mi	(+11.9%)

Code	Source	Location
SAN	FAA	San Diego [Intl], CA, US
LHR	AIP	London [Heathrow Airport], Middlesex, ENG, GB
SLC	FAA	Salt Lake City [Intl], UT, US
DEN	FAA	Denver [Intl], CO, US
MSP	FAA	Minneapolis [Minneapolis-St. Paul Intl/Wold-Chamberlain], MN, US
ORD	FAA	Chicago [Chicago O'Hare Intl], IL, US
DTW	FAA	Detroit (Romulus) [Detroit Metropolitan Wayne County Airport], MI, US
JFK	FAA	New York [John F Kennedy Intl], NY, US
PHL	FAA	Philadelphia [Intl], PA, US
DFW	FAA	Dallas-Fort Worth [Intl], TX, US
IAD	FAA	Washington [Washington Dulles Intl], DC, US
CLT	FAA	Charlotte [Charlotte/Douglas Intl], NC, US
ATL	FAA	Atlanta [Hartsfield - Jackson Atlanta Intl], GA, US
IAH	FAA	Houston [George Bush Intercontinental Airport], TX, US

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