Plan a flight · Sun 11:38 pm EDT (03:38 UTC)

General Edward Lawrence Logan International to San Francisco International BOS → SFO

2,344 nautical miles (2,698 statute miles) west on a straight line, true course 281°, about 296° magnetic at the departure end (variation 15W). At 120 knots that is 21 h 07 min at the quickest height in today's winds (4,500 ft, a 9-knot headwind), arriving about 5:45 pm PDT (00:45 UTC). Right now BOS is IFR, wind from the east-northeast (060°) at 12 knots; SFO is VFR, wind from the southwest (220°) at 6 knots. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 9,306 flights in the DOT's last twelve reported months, the route's page.

The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words

Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.

Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of

SIGMET 2C: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 12:55 am EDT (04:55 UTC). Over the route from 1466 to 1566 nm out.
as issued
```
WSUS32 KKCI 120255
MKCC WST 120255
CONVECTIVE SIGMET 2C
VALID UNTIL 0455Z
NE CO WY
FROM 40SE CZI-30WNW BFF-30SSE LAR-70NW LAR-40SE CZI
AREA TS MOV FROM 22040KT. TOPS TO FL310.
```
SIGMET W12W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 20 knots, until 12:55 am EDT (04:55 UTC). Over the route from 1975 to 2105 nm out.
as issued
```
WSUS33 KKCI 120255
MKCW WST 120255
CONVECTIVE SIGMET 12W
VALID UNTIL 0455Z
NV
FROM 40SSE TWF-10W ELY-30SE OAL-30W OAL-70WSW TWF-40SSE TWF
AREA TS MOV FROM 24020KT. TOPS TO FL310.
```
AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 608 nm of the route.
AIRMET ZULU 1C: moderate icing up to 25,000 ft. Over the first 259 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 349 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the first 180 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 80 to 239 nm out.
AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 997 to 1027 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1377 to 1845 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1456 to 1815 nm out.
AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 1516 to 1746 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1616 to 2075 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1626 to 2145 nm out.
AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 1656 to 1746 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Near the route, 2165 nm along the route.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 120 nm of the route.

A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from BOS.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

urgent B39M at 35,000 ft, 47 nm south, 11:15 pm EDT (03:15 UTC): remarks: no inj/dmg zob. 399 nm along the route, 47 nm south of the line.
as filed, and in English
```
DKK UUA /OV DKK280040/TM 0315/FL350/TP B39M/TB MTN WVE ACTN +/-5KTS/RM NO INJ/DMG ZOB
```
Report
an urgent report filed through DKK
Where
40 nm west (280°) of DKK
Time
03:15 UTC
Height
at 35,000 ft
Aircraft
B39M
Turbulence
mountain wve actn a 5-knot loss of airspeed
Remarks
no inj/dmg zob
A333 at 15,000 ft, 44 nm north, 9:37 pm EDT (01:37 UTC): moderate chop turbulence up to 15,000 ft, remarks: during the climb. At the departure end, 44 nm north of the line.
as filed, and in English
```
PSM UA /OV PSM/TM 0137/FL150/TP A333/TB MOD CHOP BLO 150/RM DURC
```
Report
a routine report filed through PSM
Where
over PSM
Time
01:37 UTC
Height
at 15,000 ft
Aircraft
A333
Turbulence
moderate chop below 15,000 ft
Remarks
during the climb
A321 at 5,000 ft, 21 nm southeast, 8:46 pm EDT (00:46 UTC): moderate turbulence from 5,000 ft to 15,000 ft. At the departure end, 21 nm southeast of the line.
as filed, and in English
```
BOS UA /OV BOS150020/TM 0046/FL050/TP A321/TB MOD 150-050
```
Report
a routine report filed through BOS
Where
20 nm southeast (150°) of BOS
Time
00:46 UTC
Height
at 5,000 ft
Aircraft
A321
Turbulence
moderate from 15,000 ft to 5,000 ft
GLF4 at 10,000 ft, 14 nm south, 9:03 pm EDT (01:03 UTC): moderate turbulence above 10,000 ft, light rain, remarks: instrument conditions. At the departure end, 14 nm south of the line.
as filed, and in English
```
BDL UA /OV CEF060010/TM 0103/FL100/TP GLF4/WX -RA/TB MOD 100/RM IMC
```
Report
a routine report filed through BDL
Where
10 nm northeast (060°) of CEF
Time
01:03 UTC
Height
at 10,000 ft
Aircraft
GLF4
Weather
light rain
Turbulence
moderate at 10,000 ft
Remarks
instrument conditions
CRJ7 at 20,000 ft, 38 nm north, 8:50 pm EDT (00:50 UTC): moderate turbulence. 120 nm along the route, 38 nm north of the line.
as filed, and in English
```
ALB UA /OV CAM360020/TM 0050/FL200/TP CRJ7/TB MOD
```
Report
a routine report filed through ALB
Where
20 nm north (360°) of CAM
Time
00:50 UTC
Height
at 20,000 ft
Aircraft
CRJ7
Turbulence
moderate
B738 at 300 ft, 0 nm south, 11:00 pm EDT (03:00 UTC): a broken layer above 500 ft, remarks: during the descent runway 4R bos. At the departure end, 0 nm south of the line.
as filed, and in English
```
BOS UA /OV KBOS/TM 0300/FL003/TP B738/SK BKN005/RM DURD RY 4R BOS
```
Report
a routine report filed through BOS
Where
over KBOS
Time
03:00 UTC
Height
at 300 ft
Aircraft
B738
Sky
a broken layer from 500 ft
Remarks
during the descent runway 4R bos
UAL42 at 35,000 ft, 11 nm northeast, 10:02 pm EDT (02:02 UTC): light turbulence, -45 °C, wind 256° at 85 knots. At the departure end, 11 nm northeast of the line.
as filed, and in English
```
ARP UAL42 4232N 07054W 0202 F350 MS45 256/085KT TB LIGHT SK ON TOP IC NONE
```
Report
a routine report filed through ARP
BCS3 at 600 ft, 2 nm northeast, 9:20 pm EDT (01:20 UTC): a broken layer above 600 ft, remarks: during the descent runway 22L bos. At the departure end, 2 nm northeast of the line.
as filed, and in English
```
BOS UA /OV KBOS040002/TM 0120/FL006/TP BCS3/SK BKN006/RM DURD RY 22L BOS
```
Report
a routine report filed through BOS
Where
2 nm northeast (040°) of KBOS
Time
01:20 UTC
Height
at 600 ft
Aircraft
BCS3
Sky
a broken layer from 600 ft
Remarks
during the descent runway 22L bos
E75S at 12,000 ft, 41 nm south, 8:59 pm EDT (00:59 UTC): light turbulence, remarks: during the climb from 12,000 ft to 17,000 ft smooth above 18,000 ft. At the departure end, 41 nm south of the line.
as filed, and in English
```
EWB UA /OV EWB/TM 0059/FL120/TP E75S/TB LGT MOD/RM DURC 120-170 SMOOTH ABOVE 180
```
Report
a routine report filed through EWB
Where
over EWB
Time
00:59 UTC
Height
at 12,000 ft
Aircraft
E75S
Turbulence
light moderate
Remarks
during the climb from 12,000 ft to 17,000 ft smooth above 18,000 ft
A321 , 0 nm south, 8:56 pm EDT (00:56 UTC): remarks: braking action fair during landing runway 22L bos. At the departure end, 0 nm south of the line.
as filed, and in English
```
BOS UA /OV KBOS/TM 0056/FL000/TP A321/RM BRAKING ACTION FAIR DURING LANDING RY 22L BOS
```
Report
a routine report filed through BOS
Where
over KBOS
Time
00:56 UTC
Height
at 0 ft
Aircraft
A321
Remarks
braking action fair during landing runway 22L bos
E55P at 600 ft, 5 nm northwest, 8:48 pm EDT (00:48 UTC): overcast above 600 ft. At the departure end, 5 nm northwest of the line.
as filed, and in English
```
BED UA /OV BED/TM 0048/FL006/TP E55P/SK OVC006
```
Report
a routine report filed through BED
Where
over BED
Time
00:48 UTC
Height
at 600 ft
Aircraft
E55P
Sky
overcast from 600 ft
CRJ9 descending, 31 nm north, 11:16 pm EDT (03:16 UTC): a routine report with nothing remarked on. At the departure end, 31 nm north of the line.
as filed, and in English
```
MHT UA /OV RWY 6/TM 0316/FLDURD/TP CRJ9/SK 004
```
Report
a routine report filed through MHT
Where
runway 6
Time
03:16 UTC
Height
during the descent
Aircraft
CRJ9
Sky
at 400 ft
B38M descending, 31 nm north, 10:53 pm EDT (02:53 UTC): overcast above 1,500 ft; scattered clouds above 500 ft. At the departure end, 31 nm north of the line.
as filed, and in English
```
MHT UA /OV RWY 17/TM 0253/FLDURD/TP B38M/SK 015 OVC / 005 SCT
```
Report
a routine report filed through MHT
Where
runway 17
Time
02:53 UTC
Height
during the descent
Aircraft
B38M
Sky
at 1,500 ft overcast; at 500 ft scattered
B38M descending, 31 nm north, 10:14 pm EDT (02:14 UTC): remarks: mod-hvy precip. At the departure end, 31 nm north of the line.
as filed, and in English
```
MHT UA /OV RWY 17/TM 0214/FLDURD/TP B38M/SK 015/RM MOD-HVY PRECIP
```
Report
a routine report filed through MHT
Where
runway 17
Time
02:14 UTC
Height
during the descent
Aircraft
B38M
Sky
at 1,500 ft
Remarks
mod-hvy precip

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 UTC · at 120 knots true airspeed

The westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 20 forecast points nearest it (BOS, BDL, ALB, SYR, BUF, CLE, MKG, GRB, LSE, MCW, FSD, ONL, BFF, RKS, SLC, ELY, BAM, RNO, SAC, SFO). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
4,500 ft	230° at 11 kt	+9 kt	20 °C	111 kt	21 h 07 min	5:45 pm PDT (00:45 UTC)
6,500 ft	240° at 10 kt	+10 kt	13 °C	110 kt	21 h 19 min	5:57 pm PDT (00:57 UTC)
8,500 ft	230° at 13 kt	+12 kt	9 °C	108 kt	21 h 42 min	6:20 pm PDT (01:20 UTC)
10,500 ft	240° at 15 kt	+14 kt	5 °C	106 kt	22 h 07 min	6:45 pm PDT (01:45 UTC)
12,500 ft	240° at 17 kt	+16 kt	1 °C	104 kt	22 h 32 min	7:10 pm PDT (02:10 UTC)
14,500 ft	240° at 18 kt	+18 kt	-3 °C	102 kt	22 h 59 min	7:37 pm PDT (02:37 UTC)
16,500 ft	240° at 20 kt	+21 kt	-8 °C	99 kt	23 h 41 min	8:19 pm PDT (03:19 UTC)
18,000 ft FL180	250° at 22 kt	+23 kt	-11 °C	97 kt	24 h 10 min	8:48 pm PDT (03:48 UTC)
24,000 ft FL240	240° at 27 kt	+27 kt	-22 °C	93 kt	25 h 12 min	9:50 pm PDT (04:50 UTC)
30,000 ft FL300	250° at 34 kt	+35 kt	-33 °C	85 kt	27 h 35 min	12:13 am PDT (07:13 UTC)
34,000 ft FL340	250° at 44 kt	+45 kt	-39 °C	75 kt	31 h 15 min	3:53 am PDT (10:53 UTC)
39,000 ft FL390	260° at 49 kt	+50 kt	-48 °C	70 kt	33 h 29 min	6:07 am PDT (13:07 UTC)

Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.

The forecast points as issued

Point	From	3,000	6,000	9,000	12,000	18,000	24,000	30,000	34,000	39,000
BOS	used from 0 nm out; 25 nm from the line	110/20	200/26 12°	280/24 8°	260/29 3°	250/47 -10°	230/59 -19°	230/74 -33°	240/95 -41°	240/96 -53°
BDL	used from 50 nm out; 39 nm from the line	120/24	290/23 12°	280/21 8°	250/36 3°	250/41 -11°	230/48 -21°	230/78 -32°	230/96 -41°	230/86 -52°
ALB	used from 100 nm out; 2 nm from the line	120/9	270/8 10°	L/V 5°	260/9 1°	260/34 -10°	250/42 -22°	240/57 -35°	240/70 -42°	240/65 -50°
SYR	used from 199 nm out; 10 nm from the line	280/13	350/18 10°	340/10 6°	300/15 1°	280/17 -12°	270/16 -23°	280/25 -38°	250/40 -42°	240/53 -50°
BUF	used from 299 nm out; 23 nm from the line	320/10	010/16 10°	360/10 6°	340/13 2°	330/22 -11°	300/25 -23°	320/31 -38°	300/29 -44°	280/36 -50°
CLE	used from 449 nm out; 116 nm from the line	340/7	010/16 13°	350/18 8°	350/20 3°	340/31 -10°	340/46 -21°	340/54 -37°	330/62 -44°	340/65 -49°
MKG	used from 549 nm out; 100 nm from the line	260/22	290/16 15°	300/11 10°	290/5 3°	300/26 -9°	300/32 -20°	320/48 -36°	320/61 -45°	310/74 -53°
GRB	used from 748 nm out; 65 nm from the line	250/36	270/23 16°	270/14 9°	240/18 4°	280/26 -9°	280/29 -20°	290/42 -36°	290/51 -45°	290/72 -55°
LSE	used from 798 nm out; 73 nm from the line	230/40	240/24 17°	240/13 10°	250/13 6°	280/22 -9°	250/28 -21°	250/41 -34°	260/42 -44°	270/62 -53°
MCW	used from 948 nm out; 12 nm from the line	220/44	250/30 17°	230/14 12°	240/17 6°	250/22 -8°	270/29 -20°	250/34 -34°	260/52 -43°	260/59 -51°
FSD	used from 1047 nm out; 65 nm from the line	190/9	230/30 18°	240/23 13°	240/20 6°	260/22 -9°	250/31 -21°	250/43 -36°	260/49 -43°	270/53 -47°
ONL	used from 1147 nm out; 54 nm from the line		210/31 20°	230/27 13°	230/18 7°	220/19 -8°	240/26 -20°	250/44 -35°	270/52 -39°	260/57 -47°
BFF	used from 1347 nm out; 74 nm from the line		180/28	220/33 15°	210/31 7°	230/32 -9°	220/41 -21°	220/40 -33°	240/47 -36°	250/54 -46°
RKS	used from 1546 nm out; 116 nm from the line			200/41	220/44 1°	220/35 -11°	220/46 -24°	210/53 -27°	220/62 -35°	230/61 -44°
SLC	used from 1746 nm out; 55 nm from the line		200/5	230/8 2°	220/20 -2°	210/40 -12°	190/53 -25°	210/62 -30°	220/69 -34°	220/64 -43°
ELY	used from 1895 nm out; 67 nm from the line			200/39 3°	210/27 -2°	210/45 -15°	220/56 -24°	210/60 -28°	210/63 -34°	220/61 -43°
BAM	used from 2045 nm out; 77 nm from the line			310/7 0°	270/19 -7°	200/38 -17°	190/49 -28°	220/69 -29°	220/63 -33°	230/48 -41°
RNO	used from 2095 nm out; 88 nm from the line		010/9	320/10 -2°	210/23 -9°	210/34 -19°	220/36 -25°	230/31 -29°	230/41 -33°	230/38 -42°
SAC	used from 2244 nm out; 36 nm from the line	110/6	L/V 4°	010/11 -2°	350/11 -7°	340/24 -16°	360/44 -23°	330/24 -30°	270/21 -35°	230/23 -43°
SFO	used from 2294 nm out; 25 nm from the line	120/13	090/14 5°	040/14 -1°	350/17 -5°	360/42 -14°	360/64 -23°	350/38 -32°	300/19 -37°	250/18 -44°

The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch

Airport	Where	Conditions	Wind	Visibility	Ceiling	Elevation	Reported
BOS Boston, MA	departure	IFR Sky: a few clouds at 700 feet, a broken layer at 1,700 feet, overcast at 4,100 feet Weather: heavy rain, mist	from the east-northeast (060°) at 12 knots	2.5 mi	1,700 ft	19 ft	11:10 pm EDT (03:10 UTC)
ALB Albany, NY	130 nm out, 4 nm east of the line, tower	low IFR Sky: overcast at 400 feet Weather: light rain, mist	from the north-northwest (330°) at 5 knots	3 mi	400 ft	284 ft	03:33 UTC
ROC Rochester, NY	299 nm out, 2 nm northeast of the line, tower	VFR Sky: scattered clouds at 400 feet, a broken layer at 12,000 feet	from the southeast (130°) at 4 knots	10+ mi	12,000 ft	558 ft	02:54 UTC
MBS Saginaw, MI	579 nm out, 6 nm north of the line, tower	VFR	from the south (180°) at 7 knots	10+ mi	none	668 ft	02:53 UTC
MSN Madison, WI	808 nm out, 18 nm south of the line, tower	VFR Sky: scattered clouds at 25,000 feet	from the south (180°) at 6 knots	10+ mi	none	886 ft	02:53 UTC
SPW Spencer, IA	1067 nm out, 3 nm east of the line	VFR	from the south-southeast (160°) at 7 knots	10+ mi	none	1,338 ft	02:53 UTC
ANW Ainsworth, NE	1277 nm out, 7 nm south of the line	VFR	from the north-northeast (020°) at 4 knots	10+ mi	none	2,588 ft	03:15 UTC
GUR Guernsey, WY	1486 nm out, 13 nm north of the line, tower	VFR Sky: a few clouds at 8,000 feet, a broken layer at 12,000 feet	from the east-northeast (070°) at 12 knots	10+ mi	12,000 ft	4,401 ft	02:55 UTC
SLC Salt Lake City, UT	1825 nm out, 10 nm north of the line, tower	VFR Sky: a few clouds at 800 feet, a broken layer at 7,000 feet, overcast at 9,000 feet Weather: light rain	from the south-southeast (150°) at 6 knots	10+ mi	7,000 ft	4,230 ft	02:54 UTC
TMT Austin, NV	2075 nm out, 12 nm northwest of the line	VFR Sky: scattered clouds at 4,600 feet, overcast at 5,000 feet Weather: light rain	from the north (010°) at 8 knots	10+ mi	5,000 ft	5,735 ft	03:15 UTC
LVK Livermore, CA	2314 nm out, 7 nm south of the line, tower	VFR	from the west (280°) at 9 knots	10+ mi	none	399 ft	02:53 UTC
SFO San Francisco, CA	destination	VFR Sky: a few clouds at 2,000 feet	from the southwest (220°) at 6 knots	10+ mi	none	13 ft	7:56 pm PDT (02:56 UTC)

The highest airport on this list sits at 5,735 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SFO when you get there the forecast at the estimated arrival, 5:45 pm PDT (00:45 UTC)

Wind from the west at 10 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for SFO

From Sun 8:00 pm PDT (03:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, a few clouds at 2,000 feet
From Mon 1:00 am PDT (08:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, clear skies
From Mon 11:00 am PDT (18:00 UTC): wind from the east-northeast at 5 knots, visibility more than 6 miles, clear skies
From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, clear skies

The forecast for BOS, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the southeast at 4 knots, visibility 4 miles, heavy rain, mist, scattered clouds at 2,200 feet, a broken layer at 2,800 feet and more above
From Sun 10:00 pm EDT (02:00 UTC): wind from the east-southeast at 5 knots, visibility 3 miles, light rain, mist, overcast at 1,000 feet
From Sun 11:00 pm EDT (03:00 UTC): wind from the east at 6 knots, visibility 2 miles, light rain, mist, overcast at 800 feet
From Mon 2:00 am EDT (06:00 UTC): wind from the northeast at 8 knots, visibility 2 miles, light rain showers, mist, overcast at 300 feet
From Mon 9:00 am EDT (13:00 UTC): wind from the north at 7 knots, visibility 3 miles, mist, a broken layer at 800 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
From Mon 11:00 pm EDT (03:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, scattered clouds at 4,500 feet

Temporary flight restrictions on the line or within 25 nm of it

6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 17 nm from the route, at the departure end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
6/6740 SACRAMENTO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local 24 nm from the route, at the destination end · air shows/sports · ended 11 October · ZOA
6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 19 nm from the route, at the destination end · drones kept away from a public gathering · until 12 October · ZOA

Daylight

Sunset at BOS 6:07 pm EDT (22:07 UTC), at SFO 6:36 pm PDT (01:36 UTC) (civil twilight ends 7:02 pm PDT (02:02 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.

Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads

Radar now, the Northeast · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: General Edward Lawrence Logan International, San Francisco International.