Plan a flight · Sun 6:40 pm PDT (01:40 UTC)

Portland International to Buffalo Niagara International PDX → BUF

1,869 nautical miles (2,151 statute miles) east on a straight line, true course 079°, about 063° magnetic at the departure end (variation 16E). At 120 knots that is 10 h 44 min at the quickest height in today's winds (39,000 ft, a 54-knot tailwind), arriving about 8:24 am EDT (12:24 UTC). Right now PDX is VFR, wind from the east-southeast (110°) at 4 knots; BUF is VFR, wind from the east (090°) at 7 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: 1 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 3W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 7:55 pm PDT (02:55 UTC). Near the route, 690 nm along the route.
as issued
```
WSUS33 KKCI 120055
MKCW WST 120055
CONVECTIVE SIGMET 3W
VALID UNTIL 0255Z
MT WY
FROM 10WSW MLS-70E DDY-20N LAR-50E BPI-30NE BIL-10WSW MLS
AREA TS MOV FROM 22040KT. TOPS TO FL310.
```
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 130 nm of the route.
AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 90 to 480 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 170 to 590 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 290 to 870 nm out.
AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 320 to 900 nm out.
AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1010 to 1110 nm out.
AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, 1719 nm along the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 0 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 PDX.

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

B739 at 10,000 ft, 30 nm west, 6:19 pm PDT (01:19 UTC): moderate rime icing from 10,000 ft to 12,000 ft, -12 °C. At the departure end, 30 nm west of the line.
as filed, and in English
```
PDX UA /OV 30W PDX/TM 0119/FL100/TP B739/TA M12/IC MOD RIME 120-100
```
Report
a routine report filed through PDX
Where
30W pdx
Time
01:19 UTC
Height
at 10,000 ft
Aircraft
B739
Temperature
−12 °C
Icing
moderate rime from 12,000 ft to 10,000 ft
E75L at 14,000 ft, 6 nm north, 4:22 pm PDT (23:22 UTC): moderate turbulence from 14,000 ft to 21,000 ft, remarks: during the climb zlc. 360 nm along the route, 6 nm north of the line.
as filed, and in English
```
MSO UA /OV 32S/TM 2322/FL140/TP E75L/TB MOD 140-210/RM DURC /ZLC
```
Report
a routine report filed through MSO
Where
over 32S
Time
23:22 UTC
Height
at 14,000 ft
Aircraft
E75L
Turbulence
moderate from 14,000 ft to 21,000 ft
Remarks
during the climb zlc
DH8D at 19,000 ft, 48 nm east, 4:35 pm PDT (23:35 UTC): moderate chop turbulence, remarks: zob. At the destination end, 48 nm east of the line.
as filed, and in English
```
ROC UA /OV ROC/TM 2335/FL190/TP DH8D/TB CONS MOD CHOP/RM ZOB
```
Report
a routine report filed through ROC
Where
over ROC
Time
23:35 UTC
Height
at 19,000 ft
Aircraft
DH8D
Turbulence
continuous moderate chop
Remarks
zob
C182 at 8,000 ft, 8 nm northwest, 3:52 pm PDT (22:52 UTC): light rime icing, -2 °C. At the departure end, 8 nm northwest of the line.
as filed, and in English
```
PDX UA /OV PDX040017/TM 2252/FL080/TP C182/TA M02/IC LGT RIME
```
Report
a routine report filed through PDX
Where
17 nm northeast (040°) of PDX
Time
22:52 UTC
Height
at 8,000 ft
Aircraft
C182
Temperature
−2 °C
Icing
light rime
C337 at 12,000 ft, 22 nm north, 6:18 pm PDT (01:18 UTC): light rime icing, -12 °C, remarks: zse. 100 nm along the route, 22 nm north of the line.
as filed, and in English
```
YKM UA /OV YKM155020/TM 0118/FL120/TP C337/TA M12/IC LGT RIME/RM ZSE
```
Report
a routine report filed through YKM
Where
20 nm southeast (155°) of YKM
Time
01:18 UTC
Height
at 12,000 ft
Aircraft
C337
Temperature
−12 °C
Icing
light rime
Remarks
zse
C210 at 9,000 ft, 32 nm south, 3:51 pm PDT (22:51 UTC): light rime icing, -13 °C, remarks: base 080-ZSE. 110 nm along the route, 32 nm south of the line.
as filed, and in English
```
PDT UA /OV PDT230040/TM 2251/FL090/TP C210/TA M13/IC LGT RIME/RM BASE 080-ZSE
```
Report
a routine report filed through PDT
Where
40 nm southwest (230°) of PDT
Time
22:51 UTC
Height
at 9,000 ft
Aircraft
C210
Temperature
−13 °C
Icing
light rime
Remarks
base 080-ZSE
PC12 at 13,500 ft, 38 nm north, 6:08 pm PDT (01:08 UTC): no turbulence, a trace of icing, overcast from 9,000 ft to 13,500 ft, -10 °C. 160 nm along the route, 38 nm north of the line.
as filed, and in English
```
PSC UA /OV PSC360025/TM 0108/FL135/TP PC12/SK OVC090-TOP135/TA M10/TB NEG /IC TRACE RM 135-090
```
Report
a routine report filed through PSC
Where
25 nm north (360°) of PSC
Time
01:08 UTC
Height
at 13,500 ft
Aircraft
PC12
Sky
overcast from 9,000 ft, tops 13,500 ft
Temperature
−10 °C
Turbulence
none
Icing
trace remarks from 13,500 ft to 9,000 ft
PC12 at 6,000 ft, 12 nm south, 5:56 pm PDT (00:56 UTC): overcast above 6,000 ft. 170 nm along the route, 12 nm south of the line.
as filed, and in English
```
ALW UA /OV ALW200015/TM 0056/FL060/TP PC12/SK OVC060
```
Report
a routine report filed through ALW
Where
15 nm south (200°) of ALW
Time
00:56 UTC
Height
at 6,000 ft
Aircraft
PC12
Sky
overcast from 6,000 ft
C25B at 4,100 ft, 29 nm north, 5:36 pm PDT (00:36 UTC): no icing, overcast above 4,100 ft, remarks: during the descent ils runway 12. 360 nm along the route, 29 nm north of the line.
as filed, and in English
```
MSO UA /OV MSO/TM 0036/FL041/TP C25B/SK OVC041/IC NEG/RM DURD ILS RY 12
```
Report
a routine report filed through MSO
Where
over MSO
Time
00:36 UTC
Height
at 4,100 ft
Aircraft
C25B
Sky
overcast from 4,100 ft
Icing
none
Remarks
during the descent ils runway 12
B738 at 24,000 ft, 36 nm south, 4:13 pm PDT (23:13 UTC): remarks: snow top flight level at 24,000 ft zlc. 450 nm along the route, 36 nm south of the line.
as filed, and in English
```
BZN UA /OV BZN270030/TM 2313/FL240/TP B738/RM SN TOP FL 240 /ZLC
```
Report
a routine report filed through BZN
Where
30 nm west (270°) of BZN
Time
23:13 UTC
Height
at 24,000 ft
Aircraft
B738
Remarks
snow top flight level at 24,000 ft zlc
E75L descending, 47 nm south, 6:04 pm PDT (01:04 UTC): remarks: had the airport in sight at 400-500FT above ground. 480 nm along the route, 47 nm south of the line.
as filed, and in English
```
BZN UA /OV BZN/TM 0104/FLDURD/TP E75L/RM HAD THE AIRPORT IN SIGHT AT 400-500FT AGL
```
Report
a routine report filed through BZN
Where
over BZN
Time
01:04 UTC
Height
during the descent
Aircraft
E75L
Remarks
had the airport in sight at 400-500FT above ground
B737 descending, 47 nm south, 5:28 pm PDT (00:28 UTC): scattered clouds above 8,000 ft, fog, snow, remarks: broke out about 100FT above mins. 480 nm along the route, 47 nm south of the line.
as filed, and in English
```
BZN UA /OV BZN/TM 0028/FLDURD/TP B737/SK SCT080/WX 1/2SM SN FG/RM BROKE OUT ABOUT 100FT ABOVE MINS
```
Report
a routine report filed through BZN
Where
over BZN
Time
00:28 UTC
Height
during the descent
Aircraft
B737
Sky
scattered clouds from 8,000 ft
Weather
1/2SM, snow, fog
Remarks
broke out about 100FT above mins
A306 at 4,700 ft, 49 nm south, 5:51 pm PDT (00:51 UTC): a routine report with nothing remarked on. 580 nm along the route, 49 nm south of the line.
as filed, and in English
```
BIL UA /OV BIL280001/TM 0051/FL047/TP A306/SK BASE 047
```
Report
a routine report filed through BIL
Where
1 nm west (280°) of BIL
Time
00:51 UTC
Height
at 4,700 ft
Aircraft
A306
Sky
base 4,700 ft
CRJ2 at 2,900 ft, 19 nm north, 5:05 pm PDT (00:05 UTC): a routine report with nothing remarked on. 820 nm along the route, 19 nm north of the line.
as filed, and in English
```
DIK UA /OV DIK/TM 0005/FL029/TP CRJ2/SK BASE029
```
Report
a routine report filed through DIK
Where
over DIK
Time
00:05 UTC
Height
at 2,900 ft
Aircraft
CRJ2
Sky
BASE029

11 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 UTC · at 120 knots true airspeed

The eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 16 forecast points nearest it (PDX, YKM, LWS, DLN, GTF, BIL, MLS, DIK, ABR, AXN, MSP, LSE, GRB, TVC, CLE, 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
3,500 ft	230° at 5 kt	−2 kt		122 kt	15 h 19 min	12:59 pm EDT (16:59 UTC)
5,500 ft	light and variable	+1 kt	6 °C	119 kt	15 h 42 min	1:22 pm EDT (17:22 UTC)
7,500 ft	260° at 2 kt	−1 kt	8 °C	121 kt	15 h 27 min	1:07 pm EDT (17:07 UTC)
9,500 ft	250° at 4 kt	−4 kt	3 °C	124 kt	15 h 04 min	12:44 pm EDT (16:44 UTC)
11,500 ft	240° at 10 kt	−8 kt	0 °C	128 kt	14 h 36 min	12:16 pm EDT (16:16 UTC)
13,500 ft	240° at 13 kt	−11 kt	-4 °C	131 kt	14 h 16 min	11:56 am EDT (15:56 UTC)
15,500 ft	240° at 16 kt	−14 kt	-8 °C	134 kt	13 h 57 min	11:37 am EDT (15:37 UTC)
17,500 ft	240° at 19 kt	−17 kt	-12 °C	137 kt	13 h 39 min	11:19 am EDT (15:19 UTC)
18,000 ft FL180	240° at 19 kt	−17 kt	-13 °C	137 kt	13 h 39 min	11:19 am EDT (15:19 UTC)
24,000 ft FL240	250° at 27 kt	−26 kt	-22 °C	146 kt	12 h 48 min	10:28 am EDT (14:28 UTC)
30,000 ft FL300	250° at 32 kt	−31 kt	-36 °C	151 kt	12 h 23 min	10:03 am EDT (14:03 UTC)
34,000 ft FL340	250° at 42 kt	−40 kt	-43 °C	160 kt	11 h 41 min	9:21 am EDT (13:21 UTC)
39,000 ft FL390	260° at 55 kt	−54 kt	-49 °C	174 kt	10 h 44 min	8:24 am EDT (12:24 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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
PDX	used from 0 nm out; 25 nm from the line	330/7	360/13 0°	040/22 -6°	030/23 -12°	020/64 -18°	010/93 -25°	010/91 -39°	360/62 -40°	350/41 -43°
YKM	used from 50 nm out; 47 nm from the line	030/16	020/18 0°	030/30 -8°	030/23 -13°	020/40 -23°	010/73 -29°	010/54 -36°	360/29 -37°	330/16 -40°
LWS	used from 150 nm out; 63 nm from the line	010/5	050/14 -2°	040/12 -6°	160/7 -10°	190/30 -22°	200/54 -27°	200/48 -35°	210/40 -37°	230/32 -41°
DLN	used from 350 nm out; 86 nm from the line			080/10 -3°	180/8 -3°	180/23 -14°	200/58 -22°	200/80 -36°	220/85 -41°	230/81 -45°
GTF	used from 400 nm out; 74 nm from the line		070/21	080/18 -6°	120/5 -5°	180/30 -14°	200/53 -24°	210/80 -38°	220/83 -44°	230/68 -46°
BIL	used from 550 nm out; 50 nm from the line		080/24	130/14 -1°	180/33 0°	210/43 -10°	220/58 -21°	200/55 -36°	220/75 -44°	240/83 -48°
MLS	used from 650 nm out; 25 nm from the line		120/22 5°	170/18 4°	200/33 1°	230/49 -10°	230/58 -21°	220/54 -37°	230/64 -44°	250/74 -49°
DIK	used from 750 nm out; 51 nm from the line		110/15 6°	200/17 5°	230/31 1°	240/47 -10°	240/52 -20°	230/52 -36°	240/57 -45°	250/67 -51°
ABR	used from 900 nm out; 101 nm from the line	030/24	220/5 16°	230/18 12°	230/32 5°	240/38 -10°	250/37 -20°	240/40 -35°	240/56 -44°	250/72 -52°
AXN	used from 1050 nm out; 61 nm from the line	L/V	220/23 17°	230/24 12°	240/25 5°	260/32 -11°	260/40 -21°	270/50 -35°	270/57 -45°	270/81 -55°
MSP	used from 1199 nm out; 53 nm from the line	200/28	240/30 19°	240/24 12°	240/17 5°	270/24 -10°	270/33 -20°	280/48 -35°	290/55 -45°	280/84 -54°
LSE	used from 1299 nm out; 96 nm from the line	220/33	250/29 17°	250/15 9°	260/12 6°	280/21 -9°	280/33 -20°	300/43 -36°	310/56 -45°	300/79 -53°
GRB	used from 1349 nm out; 84 nm from the line	240/24	260/18 16°	270/20 11°	290/14 4°	280/24 -9°	300/34 -21°	310/51 -38°	310/54 -48°	300/71 -51°
TVC	used from 1499 nm out; 32 nm from the line	210/17	290/14 15°	310/20 9°	310/18 2°	310/24 -11°	320/35 -22°	320/53 -39°	310/45 -49°	290/58 -51°
CLE	used from 1699 nm out; 140 nm from the line	340/5	320/13 14°	300/12 8°	310/10 2°	310/14 -10°	340/14 -23°	320/27 -35°	260/28 -40°	250/36 -48°
BUF	used from 1749 nm out; 95 nm from the line	170/19	L/V 10°	040/9 6°	220/8 2°	230/15 -11°	220/33 -22°	220/47 -35°	230/55 -41°	230/56 -50°

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
PDX Portland, OR	departure	VFR Sky: a few clouds at 3,900 feet, scattered clouds at 7,000 feet, a broken layer at 9,000 feet	from the east-southeast (110°) at 4 knots	10+ mi	9,000 ft	30 ft	5:53 pm PDT (00:53 UTC)
ALW Walla Walla, WA	180 nm out, 3 nm east of the line, tower	VFR Sky: overcast at 5,000 feet	from the south-southwest (210°) at 3 knots	10+ mi	5,000 ft	1,194 ft	00:53 UTC
LWS Lewiston, ID	240 nm out, 10 nm north of the line, tower	VFR Sky: overcast at 6,000 feet	from the west (270°) at 6 knots	10+ mi	6,000 ft	1,442 ft	00:56 UTC
HLN Helena, MT	450 nm out, 6 nm northwest of the line, tower	IFR Sky: scattered clouds at 700 feet, overcast at 1,400 feet Weather: light snow, mist	from the west (280°) at 8 knots	1.25 mi	1,400 ft	3,877 ft	01:36 UTC
RPX Roundup, MT	590 nm out, 9 nm south of the line	no report just now				3,490 ft
BIS Bismarck, ND	910 nm out, 19 nm north of the line, tower	marginal VFR Sky: overcast at 1,200 feet	from the north-northeast (030°) at 13 knots	10+ mi	1,200 ft	1,661 ft	00:52 UTC
GWR Gwinner, ND	1040 nm out, 1 nm southwest of the line	reported, no category	from the north-northeast (020°) at 15 knots	10+ mi	none	1,265 ft	23:35 UTC
STC St Cloud, MN	1189 nm out, 20 nm south of the line, tower	VFR	from the north-northwest (340°) at 4 knots	10+ mi	none	1,030 ft	00:53 UTC
RCX Ladysmith, WI	1319 nm out, 2 nm northeast of the line	VFR	from the south-southeast (150°) at 4 knots	10+ mi	none	1,239 ft	01:15 UTC
TVC Traverse City, MI	1549 nm out, 12 nm northeast of the line, tower	VFR	from the south (180°) at 3 knots	10+ mi	none	623 ft	00:53 UTC
CYSN St Catharines,	1849 nm out, 8 nm north of the line	VFR Sky: a broken layer at 5,000 feet	from the east (080°) at 6 knots	15 mi	5,000 ft	321 ft	01:00 UTC
BUF Buffalo, NY	destination	VFR Sky: a broken layer at 5,000 feet, a broken layer at 10,000 feet	from the east (090°) at 7 knots	10+ mi	5,000 ft	726 ft	8:54 pm EDT (00:54 UTC)

The highest airport on this list sits at 3,877 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, 8:24 am EDT (12:24 UTC)

Wind calm, visibility 6 miles, mist, overcast at 300 feet low IFR

The whole forecast for BUF

From Sun 8:00 pm EDT (00:00 UTC): wind from the east at 4 knots, visibility more than 6 miles, overcast at 3,000 feet
30% chance between Sun 8:00 pm EDT (00:00 UTC) and 10:00 pm EDT (02:00 UTC): visibility 4 miles, light rain, overcast at 1,500 feet
From Sun 10:00 pm EDT (02:00 UTC): wind calm, visibility more than 6 miles, overcast at 3,500 feet
From Mon 2:00 am EDT (06:00 UTC): wind calm, visibility 6 miles, mist, overcast at 300 feet
From Mon 9:00 am EDT (13:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, overcast at 1,500 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the west-southwest at 7 knots, visibility more than 6 miles, a broken layer at 2,000 feet

The forecast for PDX, the departure

From Sun 5:00 pm PDT (00:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, a broken layer at 5,000 feet
From Sun 8:00 pm PDT (03:00 UTC): wind light and variable, visibility more than 6 miles, clear skies

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

No temporary flight restriction on or near this route right now.

Daylight

Sunset at PDX 6:30 pm PDT (01:30 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 Pacific Northwest · loop National Weather Service

Radar now, the northern Rockies · 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: Portland International, Buffalo Niagara International.