Plan a flight · Mon 5:36 am MDT (11:36 UTC)

Denver International to Buffalo Niagara International DEN → BUF

1,178 nautical miles (1,356 statute miles) east on a straight line, true course 072°, about 064° magnetic at the departure end (variation 8E). At 120 knots that is 6 h 42 min at the quickest height in today's winds (39,000 ft, a 56-knot tailwind), arriving about 2:18 pm EDT (18:18 UTC). Right now DEN is VFR, wind from the south-southwest (210°) at 14 knots; BUF is marginal VFR, wind from the southwest (230°) at 4 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: 1,175 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 TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 50 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the first 10 nm of the route.
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 10 to 30 nm out.
AIRMET TANGO 2W: 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 200 to 629 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). Over the last 270 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 10 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 DEN.

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

B38M at 21,000 ft, 38 nm west, 5:24 am MDT (11:24 UTC): light to moderate chop turbulence, remarks: during the climb zdvwc. At the departure end, 38 nm west of the line.
as filed, and in English
```
DEN UA /OV DEN277039/TM 1124/FL210/TP B38M/TB LGT-MOD CHOP BLO 180 NEG ABV 180/RM DURC. ZDVWC
```
Report
a routine report filed through DEN
Where
39 nm west (277°) of DEN
Time
11:24 UTC
Height
at 21,000 ft
Aircraft
B38M
Turbulence
light to moderate chop below 18,000 ft no above 18,000 ft
Remarks
during the climb zdvwc
B763 at 23,000 ft, 36 nm west, 4:26 am MDT (10:26 UTC): light chop turbulence, remarks: zdvwc. At the departure end, 36 nm west of the line.
as filed, and in English
```
DEN UA /OV DEN278037/TM 1026/FL230/TP B763/TB OCNL LGT CHOP/RM ZDVWC
```
Report
a routine report filed through DEN
Where
37 nm west (278°) of DEN
Time
10:26 UTC
Height
at 23,000 ft
Aircraft
B763
Turbulence
occasional light chop
Remarks
zdvwc
B739 at 34,000 ft, 36 nm north, 4:58 am MDT (10:58 UTC): no turbulence. 759 nm along the route, 36 nm north of the line.
as filed, and in English
```
UES UA /OV BAE/TM 1058/FL340/TP B739/TB NEG
```
Report
a routine report filed through UES
Where
over BAE
Time
10:58 UTC
Height
at 34,000 ft
Aircraft
B739
Turbulence
none
B717 at 400 ft, 38 nm south, 5:23 am MDT (11:23 UTC): remarks: bases 400 ft during the descent. 968 nm along the route, 38 nm south of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 1123/FL004/TP B717/RM BASES 004 DURD
```
Report
a routine report filed through DTW
Where
over DTW
Time
11:23 UTC
Height
at 400 ft
Aircraft
B717
Remarks
bases 400 ft during the descent
CL35 at 6,000 ft, 11 nm south, 4:47 am MDT (10:47 UTC): overcast from 1,400 ft to 2,600 ft; clear from 2,600 ft to 60,000 ft, remarks: clear above 2,600 ft. 968 nm along the route, 11 nm south of the line.
as filed, and in English
```
PTK UA /OV PTK270006/TM 1047/FL060/TP CL35/SK OVC014-TOP026/RM CLEAR ABOVE 026
```
Report
a routine report filed through PTK
Where
6 nm west (270°) of PTK
Time
10:47 UTC
Height
at 6,000 ft
Aircraft
CL35
Sky
overcast from 1,400 ft, tops 2,600 ft
Remarks
clear above 2,600 ft
B350 at 2,000 ft, 10 nm south, 5:22 am MDT (11:22 UTC): a routine report with nothing remarked on. 978 nm along the route, 10 nm south of the line.
as filed, and in English
```
PTK UA /OV PTK090005/TM 1122/FL020/TP B350/WX FV10SM
```
Report
a routine report filed through PTK
Where
5 nm east (090°) of PTK
Time
11:22 UTC
Height
at 2,000 ft
Aircraft
B350
Weather
flight visibility 10 miles
B739 at 9,000 ft, 15 nm south, 4:33 am MDT (10:33 UTC): no turbulence, no icing, clear from 9,000 ft to 60,000 ft, wind 295° at 13 knots, remarks: during the descent. 988 nm along the route, 15 nm south of the line.
as filed, and in English
```
DTW UA /OV DXO033026/TM 1033/FL090/TP B739/SK SKC/WV 29513KTS/TB NEG/IC NEG/RM DURD
```
Report
a routine report filed through DTW
Where
26 nm northeast (033°) of DXO
Time
10:33 UTC
Height
at 9,000 ft
Aircraft
B739
Sky
clear
Wind
from 295° at 13 knots
Turbulence
none
Icing
none
Remarks
during the descent
A321 at 32,000 ft, 48 nm east, 5:04 am MDT (11:04 UTC): light to moderate turbulence, remarks: occasional moderate from syr to iag zob. At the destination end, 48 nm east 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
B738 climbing, 0 nm southwest, 4:20 am MDT (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
A319 at 3,000 ft, 42 nm east, 4:17 am MDT (10:17 UTC): overcast above 3,000 ft, remarks: bases 3,000 ft tops 4,000 ft. At the destination end, 42 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
A21N at 35,000 ft, 49 nm southeast, 2:52 am MDT (08:52 UTC): light to moderate chop turbulence, remarks: zob. At the destination end, 49 nm southeast of the line.
as filed, and in English
```
ROC UA /OV GEE190015/TM 0852/FL350/TP A21N/TB LGHT-MOD CHOP/RM ZOB
```
Report
a routine report filed through ROC
Where
15 nm south (190°) of GEE
Time
08:52 UTC
Height
at 35,000 ft
Aircraft
A21N
Turbulence
lght-mod chop
Remarks
zob

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 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 10 forecast points nearest it (DEN, GLD, GRI, OMA, DSM, DBQ, JOT, MKG, 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	250° at 25 kt	−25 kt		145 kt	8 h 07 min	3:43 pm EDT (19:43 UTC)
5,500 ft	260° at 23 kt	−23 kt	23 °C	143 kt	8 h 14 min	3:50 pm EDT (19:50 UTC)
7,500 ft	260° at 20 kt	−20 kt	14 °C	140 kt	8 h 25 min	4:01 pm EDT (20:01 UTC)
9,500 ft	260° at 18 kt	−19 kt	10 °C	139 kt	8 h 28 min	4:04 pm EDT (20:04 UTC)
11,500 ft	250° at 20 kt	−21 kt	6 °C	141 kt	8 h 21 min	3:57 pm EDT (19:57 UTC)
13,500 ft	260° at 22 kt	−23 kt	2 °C	143 kt	8 h 14 min	3:50 pm EDT (19:50 UTC)
15,500 ft	260° at 24 kt	−25 kt	-3 °C	145 kt	8 h 07 min	3:43 pm EDT (19:43 UTC)
17,500 ft	260° at 26 kt	−27 kt	-7 °C	147 kt	8 h 01 min	3:37 pm EDT (19:37 UTC)
18,000 ft FL180	260° at 26 kt	−27 kt	-8 °C	147 kt	8 h 01 min	3:37 pm EDT (19:37 UTC)
24,000 ft FL240	260° at 32 kt	−34 kt	-21 °C	154 kt	7 h 39 min	3:15 pm EDT (19:15 UTC)
30,000 ft FL300	270° at 42 kt	−44 kt	-34 °C	164 kt	7 h 11 min	2:47 pm EDT (18:47 UTC)
34,000 ft FL340	270° at 53 kt	−53 kt	-40 °C	173 kt	6 h 49 min	2:25 pm EDT (18:25 UTC)
39,000 ft FL390	280° at 58 kt	−56 kt	-49 °C	176 kt	6 h 42 min	2:18 pm EDT (18:18 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
DEN	used from 0 nm out; 25 nm from the line			270/24 11°	230/13 5°	230/48 -8°	230/46 -20°	230/63 -30°	240/78 -36°	240/78 -48°
GLD	used from 100 nm out; 67 nm from the line		260/37	260/25 14°	250/27 8°	230/36 -8°	230/49 -21°	250/71 -30°	260/82 -36°	250/73 -48°
GRI	used from 200 nm out; 75 nm from the line		230/39 23°	230/32 15°	210/29 7°	230/31 -8°	230/43 -21°	250/52 -31°	260/59 -35°	260/59 -46°
OMA	used from 349 nm out; 39 nm from the line	230/47	240/33 21°	230/22 13°	220/27 5°	240/35 -8°	250/43 -21°	260/47 -33°	260/59 -36°	270/58 -46°
DSM	used from 449 nm out; 43 nm from the line	250/47	260/25 20°	240/19 11°	240/31 5°	250/26 -9°	260/38 -20°	260/47 -34°	270/58 -37°	270/61 -47°
DBQ	used from 599 nm out; 26 nm from the line	250/27	260/23 17°	240/26 10°	260/30 4°	280/26 -9°	280/36 -21°	270/41 -36°	280/52 -41°	290/67 -48°
JOT	used from 699 nm out; 67 nm from the line	250/25	260/22 14°	250/17 9°	270/21 5°	280/28 -8°	280/36 -20°	270/41 -35°	280/57 -42°	290/65 -50°
MKG	used from 799 nm out; 39 nm from the line	260/28	260/18 15°	250/16 9°	260/22 4°	280/31 -9°	270/35 -21°	270/44 -35°	270/42 -45°	290/61 -51°
CLE	used from 948 nm out; 109 nm from the line	310/7	350/20 14°	340/16 9°	320/21 2°	320/32 -8°	330/34 -20°	330/45 -36°	320/60 -45°	320/64 -51°
BUF	used from 1098 nm out; 55 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
DEN Denver, CO	departure	VFR	from the south-southwest (210°) at 14 knots	10+ mi	none	5,433 ft	4:53 am MDT (10:53 UTC)
AKO Akron, CO	70 nm out, 2 nm south of the line	VFR	from the west-southwest (240°) at 11 knots	10+ mi	none	4,716 ft	10:53 UTC
CZD Cozad, NE	220 nm out, 2 nm east of the line	no report just now				2,503 ft
GRI Grand Island, NE	300 nm out, 14 nm south of the line, tower	VFR	from the south (190°) at 11 knots	10+ mi	none	1,847 ft	10:53 UTC
OMA Omaha, NE	409 nm out, 18 nm south of the line, tower	VFR	from the south-southeast (150°) at 11 knots	10+ mi	none	984 ft	10:52 UTC
DSM Des Moines, IA	509 nm out, 23 nm south of the line, tower	VFR Sky: a broken layer at 11,000 feet, a broken layer at 19,000 feet	from the south (190°) at 8 knots	10+ mi	11,000 ft	957 ft	10:54 UTC
DBQ Dubuque, IA	649 nm out, 7 nm north of the line, tower	VFR	from the south-southwest (200°) at 8 knots	10+ mi	none	1,076 ft	10:53 UTC
ENW Kenosha, WI	769 nm out, 5 nm northeast of the line, tower	VFR	from the southwest (220°) at 5 knots	10+ mi	none	742 ft	10:53 UTC
LAN Lansing, MI	918 nm out, 2 nm east of the line, tower	VFR	from the south-southwest (210°) at 6 knots	9 mi	none	860 ft	10:53 UTC
FNT Flint, MI	958 nm out, 9 nm north of the line, tower	VFR	from the south-southwest (200°) at 5 knots	10+ mi	none	782 ft	10:53 UTC
CYQS St Thomas,	1068 nm out, 10 nm southeast of the line	no report just now				776 ft
BUF Buffalo, NY	destination	marginal VFR Sky: scattered clouds at 700 feet, overcast at 1,700 feet Weather: mist	from the southwest (230°) at 4 knots	5 mi	1,700 ft	726 ft	7:29 am EDT (11:29 UTC)

The highest airport on this list sits at 5,433 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, 2:18 pm EDT (18:18 UTC)

Wind from the west-southwest at 10 knots, gusting to 18, visibility more than 6 miles, a broken layer at 3,000 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 DEN, the departure

From Mon 3:00 am MDT (09:00 UTC): wind from the south at 15 knots, visibility more than 6 miles, clear skies
From Mon 10:00 am MDT (16:00 UTC): wind from the southwest at 14 knots, gusting to 21, visibility more than 6 miles, clear skies
From Mon 4:00 pm MDT (22:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, clear skies
From Mon 7:00 pm MDT (01:00 UTC): wind from the northeast at 8 knots, visibility more than 6 miles, a few clouds at 15,000 feet
From Mon 11:00 pm MDT (05:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, a few clouds at 3,000 feet

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 DEN 6:22 pm MDT (00:22 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 southern Rockies · 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: Denver International, Buffalo Niagara International.