Plan a flight · Mon 3:40 am EDT (07:40 UTC)

Baltimore/Washington International Thurgood Marshall to San Francisco International BWI → SFO

2,130 nautical miles (2,451 statute miles) west on a straight line, true course 282°, about 293° magnetic at the departure end (variation 11W). At 120 knots that is 20 h 29 min at the quickest height in today's winds (4,500 ft, a 16-knot headwind), arriving about 9:09 pm PDT (04:09 UTC), after sunset at the destination. Right now BWI is IFR, wind from the north-northwest (340°) at 7 knots; SFO is VFR, wind from the south (180°) at 15 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: 2,095 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 W16W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the southwest at 20 knots, until 4:55 am EDT (08:55 UTC). Over the route from 1800 to 1880 nm out.
as issued
```
WSUS33 KKCI 120655
MKCW WST 120655
CONVECTIVE SIGMET 16W
VALID UNTIL 0855Z
UT NV
FROM 50NW BVL-20NE BVL-40SE OAL-20N OAL-50NW BVL
AREA TS MOV FROM 24020KT. TOPS TO FL270.
```
AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist), from 2:00 am EDT (06:00 UTC). Over the first 480 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft, from 2:00 am EDT (06:00 UTC). Over the first 110 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 2:00 am EDT (06:00 UTC). Over the route from 60 to 200 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), from 2:00 am EDT (06:00 UTC). Over the route from 680 to 1210 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft, from 2:00 am EDT (06:00 UTC). Over the route from 1180 to 1620 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft, from 2:00 am EDT (06:00 UTC). Over the route from 1230 to 1810 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), from 2:00 am EDT (06:00 UTC). Over the route from 1320 to 1500 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 2:00 am EDT (06:00 UTC). Over the route from 1410 to 1880 nm out.
AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots), from 2:00 am EDT (06:00 UTC). Near the route, 1470 nm along the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft, from 2:00 am EDT (06:00 UTC). Over the route from 1480 to 1870 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft, from 2:00 am EDT (06:00 UTC). Over the last 100 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 BWI.

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

B737 at 18,000 ft, 12 nm north, 3:24 am EDT (07:24 UTC): moderate turbulence, remarks: FL180-130. 1310 nm along the route, 12 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN330050/TM 0724/FL180/TP B737/TB MOD/RM FL180-130
```
Report
a routine report filed through DEN
Where
50 nm northwest (330°) of DEN
Time
07:24 UTC
Height
at 18,000 ft
Aircraft
B737
Turbulence
moderate
Remarks
FL180-130
PC12 at 17,000 ft, 37 nm south, 12:52 am EDT (04:52 UTC): moderate turbulence, moderate rime icing, -15 °C, remarks: entered by zoa fdcs. 1910 nm along the route, 37 nm south of the line.
as filed, and in English
```
TPH UA /OV OAL/TM 0452/FL 170/TP PC12/TA M15/TB MOD/IC MOD RIME/RM ENTERED BY ZOA FDCS AWC-WEB
```
Report
a routine report filed through TPH
Where
over OAL
Time
04:52 UTC
Height
at 17,000 ft
Aircraft
PC12
Temperature
−15 °C
Turbulence
moderate
Icing
moderate rime
Remarks
entered by zoa fdcs
B737 at 800 ft, 0 nm south, 3:30 am EDT (07:30 UTC): remarks: bases 800 ft. At the departure end, 0 nm south of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 0730/FL008/TP B737/RM BASES 008
```
Report
a routine report filed through BWI
Where
over BWI
Time
07:30 UTC
Height
at 800 ft
Aircraft
B737
Remarks
bases 800 ft
MD83 climbing, 14 nm south, 1:04 am EDT (05:04 UTC): a routine report with nothing remarked on. 290 nm along the route, 14 nm south of the line.
as filed, and in English
```
CMH UA /OV LCK/TM 0504/FLDURC/TP MD83/SK B010 T037
```
Report
a routine report filed through CMH
Where
over LCK
Time
05:04 UTC
Height
during the climb
Aircraft
MD83
Sky
B010 T037
B739 at 35,000 ft, 27 nm north, 3:05 am EDT (07:05 UTC): no turbulence. 530 nm along the route, 27 nm north of the line.
as filed, and in English
```
TIP UA /OV RBS010023/TM 0705/FL350/TP B739/TB NEG
```
Report
a routine report filed through TIP
Where
23 nm north (010°) of RBS
Time
07:05 UTC
Height
at 35,000 ft
Aircraft
B739
Turbulence
none
B38M at 29,000 ft, 6 nm northeast, 12:52 am EDT (04:52 UTC): no turbulence from 23,000 ft to 29,000 ft. 540 nm along the route, 6 nm northeast of the line.
as filed, and in English
```
TIP UA /OV RBS/TM 0452/FL290/TP B38M/TB NEG 230-290
```
Report
a routine report filed through TIP
Where
over RBS
Time
04:52 UTC
Height
at 29,000 ft
Aircraft
B38M
Turbulence
no from 23,000 ft to 29,000 ft
B737 descending, 36 nm south, 3:10 am EDT (07:10 UTC): remarks: smooth. 1290 nm along the route, 36 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0710/FLDURD/TP B737/RM SMOOTH
```
Report
a routine report filed through DEN
Where
over DEN
Time
07:10 UTC
Height
during the descent
Aircraft
B737
Remarks
smooth
B738 descending, 36 nm south, 2:15 am EDT (06:15 UTC): light chop turbulence. 1290 nm along the route, 36 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0615/FLDURD/TP B738/TB LGT CHOP
```
Report
a routine report filed through DEN
Where
over DEN
Time
06:15 UTC
Height
during the descent
Aircraft
B738
Turbulence
light chop
A20N at 25,000 ft, 41 nm south, 2:19 am EDT (06:19 UTC): light chop turbulence up to 26,000 ft, remarks: during the climb ZDVWC-06. 1340 nm along the route, 41 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN250045/TM 0619/FL250/TP A20N/TB OCNL LGT CHOP BLO 260/RM DURC. ZDVWC-06
```
Report
a routine report filed through DEN
Where
45 nm west (250°) of DEN
Time
06:19 UTC
Height
at 25,000 ft
Aircraft
A20N
Turbulence
occasional light chop below 26,000 ft
Remarks
during the climb ZDVWC-06

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 (RIC, EKN, AGC, CMH, FWA, IND, JOT, SPI, BRL, DSM, OMA, GRI, GLD, DEN, GJT, SLC, ELY, BIH, 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	250° at 16 kt	+16 kt	17 °C	104 kt	20 h 29 min	9:09 pm PDT (04:09 UTC)
6,500 ft	260° at 16 kt	+16 kt	14 °C	104 kt	20 h 29 min	9:09 pm PDT (04:09 UTC)
8,500 ft	250° at 16 kt	+16 kt	9 °C	104 kt	20 h 29 min	9:09 pm PDT (04:09 UTC)
10,500 ft	250° at 15 kt	+16 kt	5 °C	104 kt	20 h 29 min	9:09 pm PDT (04:09 UTC)
12,500 ft	250° at 16 kt	+17 kt	1 °C	103 kt	20 h 41 min	9:21 pm PDT (04:21 UTC)
14,500 ft	250° at 19 kt	+19 kt	-3 °C	101 kt	21 h 05 min	9:45 pm PDT (04:45 UTC)
16,500 ft	250° at 21 kt	+21 kt	-7 °C	99 kt	21 h 31 min	10:11 pm PDT (05:11 UTC)
18,000 ft FL180	250° at 23 kt	+23 kt	-10 °C	97 kt	21 h 58 min	10:38 pm PDT (05:38 UTC)
24,000 ft FL240	250° at 28 kt	+28 kt	-21 °C	92 kt	23 h 09 min	11:49 pm PDT (06:49 UTC)
30,000 ft FL300	250° at 35 kt	+36 kt	-32 °C	84 kt	25 h 21 min	2:01 am PDT (09:01 UTC)
34,000 ft FL340	260° at 43 kt	+46 kt	-38 °C	74 kt	28 h 47 min	5:27 am PDT (12:27 UTC)
39,000 ft FL390	260° at 42 kt	+45 kt	-47 °C	75 kt	28 h 24 min	5:04 am PDT (12:04 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
RIC	used from 0 nm out; 106 nm from the line	270/23	280/19 11°	270/18 8°	240/22 4°	230/39 -7°	220/55 -18°	220/75 -30°	230/83 -39°	230/64 -50°
EKN	used from 50 nm out; 82 nm from the line		330/21 12°	330/25 7°	350/22 2°	330/24 -10°	310/27 -21°	320/33 -35°	290/31 -39°	290/34 -47°
AGC	used from 150 nm out; 42 nm from the line	350/14	330/20 11°	340/18 8°	330/17 3°	340/22 -11°	340/31 -22°	330/33 -36°	300/34 -41°	300/35 -47°
CMH	used from 200 nm out; 67 nm from the line	330/15	340/22 14°	340/24 9°	340/23 4°	340/35 -9°	340/49 -20°	340/58 -37°	330/70 -42°	340/55 -47°
FWA	used from 350 nm out; 51 nm from the line	300/17	320/20 16°	330/20 10°	340/15 3°	310/27 -8°	320/37 -20°	330/52 -36°	330/65 -43°	330/60 -50°
IND	used from 400 nm out; 45 nm from the line	290/16	310/20 16°	320/21 10°	330/13 3°	300/25 -7°	320/32 -19°	330/46 -34°	320/61 -43°	320/63 -50°
JOT	used from 500 nm out; 62 nm from the line	250/23	270/22 15°	250/16 10°	240/9 4°	280/22 -7°	280/29 -19°	300/29 -34°	290/50 -43°	300/64 -52°
SPI	used from 550 nm out; 53 nm from the line	220/21	250/23 16°	260/27 9°	270/14 6°	270/23 -7°	270/31 -19°	270/28 -33°	290/48 -42°	300/55 -52°
BRL	used from 600 nm out; 47 nm from the line	230/24	240/29 15°	290/16 10°	280/15 4°	260/23 -7°	260/32 -19°	260/36 -33°	280/48 -41°	280/59 -52°
DSM	used from 750 nm out; 49 nm from the line	230/40	250/33 17°	250/18 12°	240/17 5°	260/28 -8°	270/34 -19°	260/41 -33°	260/55 -41°	270/62 -51°
OMA	used from 850 nm out; 35 nm from the line	220/47	240/33 19°	250/18 11°	230/17 6°	260/29 -8°	250/33 -19°	250/51 -33°	260/61 -40°	270/62 -49°
GRI	used from 950 nm out; 26 nm from the line		230/35 21°	230/23 13°	220/20 7°	240/25 -8°	240/37 -20°	250/49 -33°	260/57 -38°	260/58 -47°
GLD	used from 1100 nm out; 81 nm from the line		230/49	230/42 15°	220/26 8°	240/18 -7°	230/27 -21°	240/62 -30°	240/61 -35°	250/57 -47°
DEN	used from 1200 nm out; 75 nm from the line			240/21 14°	250/44 6°	220/49 -8°	220/49 -21°	230/54 -30°	240/57 -35°	240/49 -45°
GJT	used from 1400 nm out; 74 nm from the line			210/43 7°	230/45 1°	220/49 -12°	220/62 -22°	220/59 -28°	230/60 -33°	220/55 -45°
SLC	used from 1550 nm out; 80 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 1650 nm out; 87 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°
BIH	used from 1850 nm out; 100 nm from the line		L/V	240/7 1°	190/13 -3°	200/26 -16°	210/43 -26°	220/54 -28°	220/51 -35°	220/47 -43°
SAC	used from 2000 nm out; 63 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 2100 nm out; 15 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
BWI Baltimore, MD	departure	IFR Sky: overcast at 900 feet Weather: light drizzle, mist	from the north-northwest (340°) at 7 knots	6 mi	900 ft	143 ft	2:54 am EDT (06:54 UTC)
MRB Martinsburg, WV	60 nm out, 3 nm northwest of the line, tower	marginal VFR Sky: a broken layer at 1,300 feet, a broken layer at 3,800 feet, overcast at 9,000 feet Weather: light rain	from the north-northwest (330°) at 8 knots	10+ mi	1,300 ft	564 ft	07:09 UTC
OSU Columbus, OH	300 nm out, 1 nm northwest of the line, tower	IFR Sky: a broken layer at 800 feet, overcast at 1,300 feet Weather: mist	from the west-northwest (300°) at 7 knots	6 mi	800 ft	905 ft	07:28 UTC
LAF Lafayette, IN	480 nm out, 1 nm southeast of the line, tower	low IFR Weather: mist	calm	0.75 mi	none	605 ft	07:36 UTC
FSW Fort Madison, IA	680 nm out, 1 nm south of the line	VFR	from the south (180°) at 4 knots	10+ mi	none	721 ft	07:15 UTC
LNK Lincoln, NE	930 nm out, 6 nm northeast of the line, tower	VFR	from the south (190°) at 15 knots	10+ mi	none	1,218 ft	06:54 UTC
HEQ Holyoke, CO	1180 nm out, 1 nm southeast of the line	VFR	from the south-southwest (200°) at 7 knots	10+ mi	none	3,729 ft	07:35 UTC
FNL Fort Collins/Loveland, CO	1300 nm out, 5 nm northwest of the line, tower	VFR	from the south (170°) at 7 knots	10+ mi	none	5,020 ft	06:56 UTC
DTA Delta, UT	1650 nm out, 10 nm south of the line	VFR	from the north-northeast (030°) at 7 knots, gusting to 18	10+ mi	none	4,759 ft	17:35 UTC
ELY Ely, NV	1760 nm out, 8 nm northwest of the line	VFR Sky: a broken layer at 4,800 feet, overcast at 6,000 feet	from the south (190°) at 10 knots	10+ mi	4,800 ft	6,259 ft	06:53 UTC
SCK Stockton, CA	2070 nm out, 4 nm west of the line, tower	VFR Sky: a few clouds at 9,000 feet	from the north (350°) at 5 knots	10+ mi	none	32 ft	06:55 UTC
SFO San Francisco, CA	destination	VFR Sky: a few clouds at 2,000 feet	from the south (180°) at 15 knots	10+ mi	none	13 ft	11:56 pm PDT (06:56 UTC)

The highest airport on this list sits at 6,259 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, 9:09 pm PDT (04:09 UTC)

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

The whole forecast for SFO

From Sun 11:00 pm PDT (06:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, a few clouds at 2,000 feet
From Mon 11:00 am PDT (18:00 UTC): wind from the 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 12 knots, visibility more than 6 miles, clear skies
From Mon 8:00 pm PDT (03:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies

The forecast for BWI, the departure

From Mon 2:00 am EDT (06:00 UTC): wind from the north at 9 knots, gusting to 16, visibility 5 miles, light rain, mist, a broken layer at 800 feet, overcast at 1,300 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the north-northwest at 12 knots, gusting to 20, visibility more than 6 miles, overcast at 1,400 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the northwest at 10 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 2,500 feet
From Mon 4:00 pm EDT (20:00 UTC): wind from the west-northwest at 9 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet

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

6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 6 nm from the route, at the departure end · drones kept away from a public gathering · starts Saturday 17 October · ZDC
4/9383 WASHINGTON, DC., USA 8 nm from the route, at the departure end · security · ZDC
6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 8 nm from the route, at the departure end · a VIP movement · today · ZDC

Daylight

Sunset at BWI 6:32 pm EDT (22:32 UTC), at SFO 6:35 pm PDT (01:35 UTC) (civil twilight ends 7:01 pm PDT (02:01 UTC)). At 120 knots the arrival at SFO is after sunset there (6:36 pm PDT (01:36 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: Baltimore/Washington International Thurgood Marshall, San Francisco International.