Plan a flight · Mon 8:03 am EDT (12:03 UTC)

Baltimore/Washington International Thurgood Marshall to Buffalo Niagara International BWI → BUF

245 nautical miles (281 statute miles) north on a straight line, true course 338°, about 349° magnetic at the departure end (variation 11W). At 120 knots that is 2 h 20 min at the quickest height in today's winds (4,500 ft, a 15-knot headwind), arriving about 10:23 am EDT (14:23 UTC). Right now BWI is marginal VFR, wind from the north-northwest (330°) at 6 knots; BUF is IFR, wind from the west-southwest (240°) at 5 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: 3,444 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

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 whole route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the whole route.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Near the route, 59 nm along the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 59 to 205 nm out.

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

E75S at 15,000 ft, 29 nm east, 6:35 am EDT (10:35 UTC): moderate turbulence, remarks: dca arrival from 12,000 ft to 15,000 ft during the descent. At the departure end, 29 nm east of the line.
as filed, and in English
```
BWI UA /OV BAL060030/TM 1035/FL150/TP E75S/TB MOD/RM DCA ARRIVAL 120-150 DURD
```
Report
a routine report filed through BWI
Where
30 nm northeast (060°) of BAL
Time
10:35 UTC
Height
at 15,000 ft
Aircraft
E75S
Turbulence
moderate
Remarks
dca arrival from 12,000 ft to 15,000 ft during the descent
E170 at 1,000 ft, 26 nm southwest, 7:32 am EDT (11:32 UTC): a broken layer above 1,200 ft. At the departure end, 26 nm southwest of the line.
as filed, and in English
```
DCA UA /OV DCA/TM 1132/FL010/TP E170/SK BKN012
```
Report
a routine report filed through DCA
Where
over DCA
Time
11:32 UTC
Height
at 1,000 ft
Aircraft
E170
Sky
a broken layer from 1,200 ft
B39M at 1,200 ft, 0 nm south, 7:10 am EDT (11:10 UTC): remarks: base 1200FT tops 2000FT. At the departure end, 0 nm south of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 1110/FL012/TP B39M/RM BASE 1200FT TOPS 2000FT
```
Report
a routine report filed through BWI
Where
over BWI
Time
11:10 UTC
Height
at 1,200 ft
Aircraft
B39M
Remarks
base 1200FT tops 2000FT
B39M descending, 39 nm west, 6:42 am EDT (10:42 UTC): overcast above 4,000 ft. At the departure end, 39 nm west of the line.
as filed, and in English
```
IAD UA /OV RWY 1R/TM 1042/FLDURD/TP B39M/SK OVC 040/WX 10 SM
```
Report
a routine report filed through IAD
Where
runway 1R
Time
10:42 UTC
Height
during the descent
Aircraft
B39M
Sky
overcast from 4,000 ft
Weather
10, miles
B737 at 700 ft, 0 nm south, 5:33 am EDT (09:33 UTC): remarks: light rain. At the departure end, 0 nm south of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 0933/FL007/TP B737/RM LIGHT RAIN
```
Report
a routine report filed through BWI
Where
over BWI
Time
09:33 UTC
Height
at 700 ft
Aircraft
B737
Remarks
light rain
UAL1428 at 32,000 ft, 46 nm west, 7:36 am EDT (11:36 UTC): no turbulence, -39 °C, wind 360° at 59 knots. 29 nm along the route, 46 nm west of the line.
as filed, and in English
```
ARP UAL1428 3923N 07750W 1136 F320 MS39 360/059KT TB NONE SK CLEAR IC NONE
```
Report
a routine report filed through ARP
SR22 at 3,100 ft, 16 nm northeast, 7:40 am EDT (11:40 UTC): a routine report with nothing remarked on. 59 nm along the route, 16 nm northeast of the line.
as filed, and in English
```
MDT UA /OV CXY/TM 1140/FL031/TP SR22/SK SCT016 BASES028-TOPS031
```
Report
a routine report filed through MDT
Where
over CXY
Time
11:40 UTC
Height
at 3,100 ft
Aircraft
SR22
Sky
SCT016 BASES028-TOPS031
B737 at 1,900 ft, 19 nm east, 7:23 am EDT (11:23 UTC): a routine report with nothing remarked on. 59 nm along the route, 19 nm east of the line.
as filed, and in English
```
MDT UA /OV MDT/TM 1123/FL019/TP B737/SK BASES019
```
Report
a routine report filed through MDT
Where
over MDT
Time
11:23 UTC
Height
at 1,900 ft
Aircraft
B737
Sky
BASES019
C208 at 2,700 ft, 23 nm west, 6:01 am EDT (10:01 UTC): remarks: zob. 176 nm along the route, 23 nm west of the line.
as filed, and in English
```
BFD UA /OV BFD/TM 1001/FL027/TP C208/SK BASE027 TOP043/RM ZOB
```
Report
a routine report filed through BFD
Where
over BFD
Time
10:01 UTC
Height
at 2,700 ft
Aircraft
C208
Sky
BASE027 TOP043
Remarks
zob
B38M at 37,000 ft, 10 nm northeast, 7:36 am EDT (11:36 UTC): -48 °C, wind 335° at 62 knots, remarks: produced by skypath. 215 nm along the route, 10 nm northeast of the line.
as filed, and in English
```
OLE UA /OV GEE249029 /TM 1136 /FL370 /TP B38M /TA M48 /WV 33562KT /RM PRODUCED BY SKYPATH
```
Report
a routine report filed through OLE
Where
29 nm west (249°) of GEE
Time
11:36 UTC
Height
at 37,000 ft
Aircraft
B38M
Temperature
−48 °C
Wind
from 335° at 62 knots
Remarks
produced by skypath
A321 at 32,000 ft, 47 nm northeast, 7:04 am EDT (11:04 UTC): light to moderate turbulence, remarks: occasional moderate from syr to iag zob. At the destination end, 47 nm northeast of the line.
as filed, and in English
```
ROC UA /OV ROC/TM 1104/FL320/TP A321/TB CONS LGT OCNL MOD/RM OCNL MOD FROM SYR TO IAG ZOB
```
Report
a routine report filed through ROC
Where
over ROC
Time
11:04 UTC
Height
at 32,000 ft
Aircraft
A321
Turbulence
continuous light occasional moderate
Remarks
occasional moderate from syr to iag zob
A319 at 3,000 ft, 40 nm east, 6:17 am EDT (10:17 UTC): overcast above 3,000 ft, remarks: bases 3,000 ft tops 4,000 ft. At the destination end, 40 nm east of the line.
as filed, and in English
```
ROC UA /OV ROC220010/TM 1017/FL030/TP A319/SK 030 OVC/RM BASES 030 TOPS 040
```
Report
a routine report filed through ROC
Where
10 nm southwest (220°) of ROC
Time
10:17 UTC
Height
at 3,000 ft
Aircraft
A319
Sky
at 3,000 ft overcast
Remarks
bases 3,000 ft tops 4,000 ft
B738 climbing, 0 nm southwest, 6:20 am EDT (10:20 UTC): overcast from 2,500 ft to 4,200 ft; scattered clouds above 700 ft. At the destination end, 0 nm southwest of the line.
as filed, and in English
```
BUF UA /OV BUF/TM 1020/FLDURC/TP B738/SK SCT007 OVC025 TOPS042
```
Report
a routine report filed through BUF
Where
over BUF
Time
10:20 UTC
Height
during the climb
Aircraft
B738
Sky
SCT007 OVC025 TOPS042

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 2 forecast points nearest it (PSB, BUF). 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	010° at 18 kt	+15 kt	12 °C	105 kt	2 h 20 min	10:23 am EDT (14:23 UTC)
6,500 ft	010° at 20 kt	+17 kt	11 °C	103 kt	2 h 23 min	10:26 am EDT (14:26 UTC)
8,500 ft	360° at 26 kt	+24 kt	8 °C	96 kt	2 h 33 min	10:36 am EDT (14:36 UTC)
10,500 ft	360° at 28 kt	+26 kt	4 °C	94 kt	2 h 36 min	10:39 am EDT (14:39 UTC)
12,500 ft	350° at 29 kt	+27 kt	0 °C	93 kt	2 h 38 min	10:41 am EDT (14:41 UTC)
14,500 ft	350° at 30 kt	+29 kt	-4 °C	91 kt	2 h 42 min	10:45 am EDT (14:45 UTC)
16,500 ft	350° at 31 kt	+31 kt	-7 °C	89 kt	2 h 45 min	10:48 am EDT (14:48 UTC)
18,000 ft FL180	350° at 33 kt	+32 kt	-10 °C	88 kt	2 h 47 min	10:50 am EDT (14:50 UTC)
24,000 ft FL240	350° at 40 kt	+39 kt	-22 °C	81 kt	3 h 01 min	11:04 am EDT (15:04 UTC)
30,000 ft FL300	350° at 49 kt	+49 kt	-37 °C	71 kt	3 h 27 min	11:30 am EDT (15:30 UTC)
34,000 ft FL340	340° at 62 kt	+62 kt	-44 °C	58 kt	4 h 13 min	12:16 pm EDT (16:16 UTC)
39,000 ft FL390	340° at 44 kt	+44 kt	-52 °C	76 kt	3 h 13 min	11:16 am EDT (15:16 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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
PSB	used from 0 nm out; 98 nm from the line		020/21 12°	360/28 7°	360/29 1°	350/33 -10°	350/42 -22°	350/49 -37°	340/63 -43°	350/39 -52°
BUF	used from 196 nm out; 24 nm from the line	300/11	330/15 11°	340/26 8°	330/28 2°	340/31 -10°	340/32 -21°	340/52 -37°	340/59 -46°	330/66 -53°

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	marginal VFR Sky: a broken layer at 1,900 feet, a broken layer at 2,500 feet	from the north-northwest (330°) at 6 knots	10+ mi	1,900 ft	143 ft	7:54 am EDT (11:54 UTC)
DMW Westminster, MD	29 nm out, 5 nm west of the line	marginal VFR Sky: overcast at 1,700 feet	from the north (350°) at 4 knots	10+ mi	1,700 ft	789 ft	11:55 UTC
CXY Harrisburg, PA	59 nm out, 16 nm northeast of the line, tower	marginal VFR Sky: overcast at 2,100 feet	from the west-northwest (300°) at 4 knots	10+ mi	2,100 ft	346 ft	11:56 UTC
UNV State College, PA	117 nm out, 13 nm southwest of the line, tower	marginal VFR Sky: overcast at 1,100 feet	from the north-northwest (330°) at 7 knots	10+ mi	1,100 ft	1,231 ft	11:53 UTC
OLE Olean, NY	196 nm out, 4 nm northwest of the line	low IFR Sky: overcast at 200 feet Weather: mist	from the west-northwest (300°) at 7 knots	1.75 mi	200 ft	2,135 ft	11:55 UTC
BUF Buffalo, NY	destination	IFR Sky: a broken layer at 600 feet, overcast at 1,600 feet Weather: mist	from the west-southwest (240°) at 5 knots	4 mi	600 ft	726 ft	7:54 am EDT (11:54 UTC)

The highest airport on this list sits at 2,135 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At BUF when you get there the forecast at the estimated arrival, 10:23 am EDT (14:23 UTC)

Wind from the southwest at 4 knots, visibility more than 6 miles, scattered clouds at 700 feet, overcast at 1,500 feet marginal VFR

The whole forecast for BUF

From Mon 8:00 am EDT (12:00 UTC): wind from the southwest at 4 knots, visibility more than 6 miles, scattered clouds at 700 feet, overcast at 1,500 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the west-southwest at 6 knots, visibility more than 6 miles, overcast at 1,200 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the west-southwest at 10 knots, gusting to 18, visibility more than 6 miles, a broken layer at 3,000 feet
From Mon 7:00 pm EDT (23:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, a broken layer at 20,000 feet
From Mon 9:00 pm EDT (01:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, low-level wind shear, scattered clouds at 20,000 feet
From Tue 5:00 am EDT (09:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, scattered clouds at 9,000 feet
30% chance between Tue 6:00 am EDT (10:00 UTC) and 8:00 am EDT (12:00 UTC): visibility 4 miles, light rain showers, a broken layer at 7,000 feet

The forecast for BWI, the departure

From Mon 8:00 am EDT (12:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, 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, a broken layer at 2,000 feet, overcast at 3,500 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, a few clouds at 5,000 feet
From Tue 10:00 am EDT (14:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

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

4/9383 WASHINGTON, DC., USA 12 nm from the route, at the departure end · security · ZDC
6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 5 nm from the route, at the departure end · drones kept away from a public gathering · starts Saturday 17 October · ZDC

Daylight

Sunset at BWI 6:32 pm EDT (22:32 UTC), at BUF 6:37 pm EDT (22:37 UTC) (civil twilight ends 7:06 pm EDT (23:06 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, 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, Buffalo Niagara International.