Plan a flight · Mon 9:21 am MDT (15:21 UTC)

Denver International to Long Island Mac Arthur Airport DEN → ISP

1,438 nautical miles (1,655 statute miles) east on a straight line, true course 077°, about 069° magnetic at the departure end (variation 8E). At 120 knots that is 8 h 05 min at the quickest height in today's winds (34,000 ft, a 58-knot tailwind), arriving about 7:26 pm EDT (23:26 UTC), after sunset at the destination. Right now DEN is VFR, wind from the south-southwest (210°) at 12 knots; ISP is marginal VFR, wind from the north (010°) at 10 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

AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 100 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 20 nm of the route.
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 240 to 559 nm out.
AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist). Over the route from 989 to 1239 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1139 to 1309 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 ft. Over the last 220 nm of the route.
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 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 DEN.

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

urgent C172 at 6,700 ft, 19 nm southwest, 6:54 am MDT (12:54 UTC): remarks: low-level wind shear + 10 knots during the climb. At the departure end, 19 nm southwest of the line.
as filed, and in English
```
APA UUA /OV KAPA/TM 1254/FL067/TP C172/RM LLWS +/- 10 KTS DURC
```
Report
an urgent report filed through APA
Where
over KAPA
Time
12:54 UTC
Height
at 6,700 ft
Aircraft
C172
Remarks
low-level wind shear + 10 knots during the climb
urgent FA7X at 6,800 ft, 19 nm southwest, 6:40 am MDT (12:40 UTC): remarks: low-level wind shear a 40-knot loss of airspeed knots during the climb runway 35R. At the departure end, 19 nm southwest of the line.
as filed, and in English
```
APA UUA /OV KAPA/TM 1240/FL068/TP FA7X/RM LLWS -40 KTS DURC RY 35R
```
Report
an urgent report filed through APA
Where
over KAPA
Time
12:40 UTC
Height
at 6,800 ft
Aircraft
FA7X
Remarks
low-level wind shear a 40-knot loss of airspeed knots during the climb runway 35R
urgent TBM7 at 100 ft, 20 nm southwest, 6:30 am MDT (12:30 UTC): light chop turbulence, remarks: low-level wind shear a 10-knot loss of airspeed. At the departure end, 20 nm southwest of the line.
as filed, and in English
```
APA UUA /OV APA140001/TM 1230/FL001/TP TBM7/TB LGT CHOP/RM LLWS +-10KTS
```
Report
an urgent report filed through APA
Where
1 nm southeast (140°) of APA
Time
12:30 UTC
Height
at 100 ft
Aircraft
TBM7
Turbulence
light chop
Remarks
low-level wind shear a 10-knot loss of airspeed
B737 at 21,000 ft, 22 nm northwest, 8:05 am MDT (14:05 UTC): moderate turbulence, remarks: mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent. At the departure end, 22 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN310025/TM 1405/FL210/TP B737/TB MOD TURB/RM MTN WAVE +30KTS 250-150 DURD
```
Report
a routine report filed through DEN
Where
25 nm northwest (310°) of DEN
Time
14:05 UTC
Height
at 21,000 ft
Aircraft
B737
Turbulence
moderate turbulence
Remarks
mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent
B738 descending, 37 nm northwest, 7:01 am MDT (13:01 UTC): moderate turbulence from 11,000 ft to 20,000 ft. At the departure end, 37 nm northwest of the line.
as filed, and in English
```
DEN UA /OV 40NW DEN/TM 1301/FLDURD/TP B738/TB MOD 200-110
```
Report
a routine report filed through DEN
Where
40NW den
Time
13:01 UTC
Height
during the descent
Aircraft
B738
Turbulence
moderate from 20,000 ft to 11,000 ft
B738 descending, 41 nm southwest, 6:55 am MDT (12:55 UTC): moderate turbulence from 16,000 ft to 20,000 ft. At the departure end, 41 nm southwest of the line.
as filed, and in English
```
DEN UA /OV 40SW DEN/TM 1255/FLDURD/TP B738/TB MOD 200-160
```
Report
a routine report filed through DEN
Where
40SW den
Time
12:55 UTC
Height
during the descent
Aircraft
B738
Turbulence
moderate from 20,000 ft to 16,000 ft
C172 at 200 ft, 18 nm southwest, 6:35 am MDT (12:35 UTC): moderate turbulence, remarks: low-level wind shear a 15-knot loss of airspeed. At the departure end, 18 nm southwest of the line.
as filed, and in English
```
APA UA /OV APA350001/TM 1235/FL002/TP C172/TB MOD TURB/RM LLWS +-15KTS
```
Report
a routine report filed through APA
Where
1 nm north (350°) of APA
Time
12:35 UTC
Height
at 200 ft
Aircraft
C172
Turbulence
moderate turbulence
Remarks
low-level wind shear a 15-knot loss of airspeed
B737 at 16,000 ft, 37 nm northwest, 6:23 am MDT (12:23 UTC): moderate turbulence, remarks: during the descent. At the departure end, 37 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN320040/TM 1223/FL160/TP B737/TB MOD/RM DURD
```
Report
a routine report filed through DEN
Where
40 nm northwest (320°) of DEN
Time
12:23 UTC
Height
at 16,000 ft
Aircraft
B737
Turbulence
moderate
Remarks
during the descent
B38M at 12,000 ft, 12 nm southeast, 8:07 am MDT (14:07 UTC): moderate turbulence, remarks: from 11,000 ft to 12,000 ft. At the departure end, 12 nm southeast of the line.
as filed, and in English
```
DEN UA /OV DEN090025/TM 1407/FL120/TP B38M/TB MOD/RM 110-120
```
Report
a routine report filed through DEN
Where
25 nm east (090°) of DEN
Time
14:07 UTC
Height
at 12,000 ft
Aircraft
B38M
Turbulence
moderate
Remarks
from 11,000 ft to 12,000 ft
E75L climbing, 3 nm south, 8:37 am MDT (14:37 UTC): light chop turbulence, remarks: zimmr sid. At the departure end, 3 nm south of the line.
as filed, and in English
```
DEN UA /OV W DEN/TM 1437/FLDURC/TP E75L/TB CONT LGT CHOP / MOD 120/RM ZIMMR SID
```
Report
a routine report filed through DEN
Where
west den
Time
14:37 UTC
Height
during the climb
Aircraft
E75L
Turbulence
continuous light chop moderate at 12,000 ft
Remarks
zimmr sid
B737 at 6,500 ft, 3 nm south, 8:32 am MDT (14:32 UTC): no turbulence. At the departure end, 3 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 1432/FL065/TP B737/TB NEG TB ON FINAL RWY17R
```
Report
a routine report filed through DEN
Where
over DEN
Time
14:32 UTC
Height
at 6,500 ft
Aircraft
B737
Turbulence
no turbulence on final runway 17R
C172 at 7,800 ft, 24 nm south, 7:57 am MDT (13:57 UTC): light to moderate chop turbulence. At the departure end, 24 nm south of the line.
as filed, and in English
```
APA UA /OV APA150006/TM 1357/FL078/TP C172/TB LGT-MOD CHOP
```
Report
a routine report filed through APA
Where
6 nm southeast (150°) of APA
Time
13:57 UTC
Height
at 7,800 ft
Aircraft
C172
Turbulence
light to moderate chop
B737 at 18,000 ft, 17 nm north, 7:50 am MDT (13:50 UTC): light to moderate turbulence, remarks: from the surface to 18,000 ft. At the departure end, 17 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN350020/TM 1350/FL180/TP B737/TB LGT-MOD/RM SFC-180
```
Report
a routine report filed through DEN
Where
20 nm north (350°) of DEN
Time
13:50 UTC
Height
at 18,000 ft
Aircraft
B737
Turbulence
light to moderate
Remarks
from the surface to 18,000 ft
CRJ2 at 7,000 ft, 3 nm south, 7:30 am MDT (13:30 UTC): no turbulence. At the departure end, 3 nm south of the line.
as filed, and in English
```
DEN UA /OV 5N/TM 1330/FL070/TP CRJ2/TB NEG
```
Report
a routine report filed through DEN
Where
5N
Time
13:30 UTC
Height
at 7,000 ft
Aircraft
CRJ2
Turbulence
none

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 13 forecast points nearest it (DEN, GLD, GRI, OMA, DSM, BRL, JOT, FWA, CLE, AGC, PSB, AVP, JFK). 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 18 kt	−18 kt		138 kt	10 h 25 min	9:46 pm EDT (01:46 UTC)
5,500 ft	270° at 19 kt	−20 kt	17 °C	140 kt	10 h 16 min	9:37 pm EDT (01:37 UTC)
7,500 ft	260° at 19 kt	−20 kt	13 °C	140 kt	10 h 16 min	9:37 pm EDT (01:37 UTC)
9,500 ft	270° at 20 kt	−22 kt	10 °C	142 kt	10 h 08 min	9:29 pm EDT (01:29 UTC)
11,500 ft	270° at 22 kt	−24 kt	6 °C	144 kt	9 h 59 min	9:20 pm EDT (01:20 UTC)
13,500 ft	270° at 23 kt	−25 kt	2 °C	145 kt	9 h 55 min	9:16 pm EDT (01:16 UTC)
15,500 ft	270° at 24 kt	−26 kt	-3 °C	146 kt	9 h 51 min	9:12 pm EDT (01:12 UTC)
17,500 ft	270° at 25 kt	−27 kt	-7 °C	147 kt	9 h 47 min	9:08 pm EDT (01:08 UTC)
18,000 ft FL180	270° at 26 kt	−27 kt	-8 °C	147 kt	9 h 47 min	9:08 pm EDT (01:08 UTC)
24,000 ft FL240	270° at 34 kt	−36 kt	-21 °C	156 kt	9 h 13 min	8:34 pm EDT (00:34 UTC)
30,000 ft FL300	270° at 47 kt	−49 kt	-33 °C	169 kt	8 h 31 min	7:52 pm EDT (23:52 UTC)
34,000 ft FL340	280° at 57 kt	−58 kt	-40 °C	178 kt	8 h 05 min	7:26 pm EDT (23:26 UTC)
39,000 ft FL390	280° at 56 kt	−57 kt	-48 °C	177 kt	8 h 07 min	7:28 pm EDT (23:28 UTC)

Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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			230/7 11°	230/13 4°	230/40 -9°	230/48 -20°	240/66 -32°	240/88 -38°	230/100 -47°
GLD	used from 100 nm out; 57 nm from the line		240/22	250/24 13°	250/39 6°	230/42 -8°	230/55 -21°	240/87 -30°	240/96 -36°	250/93 -48°
GRI	used from 200 nm out; 74 nm from the line		270/26 19°	230/33 13°	230/39 8°	230/43 -9°	240/55 -21°	250/76 -28°	260/84 -36°	260/68 -47°
OMA	used from 350 nm out; 39 nm from the line	210/23	240/34 20°	230/40 14°	220/43 7°	240/38 -8°	250/47 -21°	270/70 -29°	270/79 -36°	270/68 -48°
DSM	used from 449 nm out; 42 nm from the line	230/34	230/32 20°	220/33 12°	240/35 5°	250/39 -7°	250/43 -21°	280/61 -31°	280/73 -37°	280/67 -47°
BRL	used from 549 nm out; 57 nm from the line	240/28	240/25 18°	250/26 12°	260/29 5°	260/24 -8°	270/36 -20°	280/57 -33°	290/65 -37°	290/54 -46°
JOT	used from 699 nm out; 33 nm from the line	230/30	250/26 16°	270/27 11°	280/34 5°	290/32 -8°	280/37 -21°	280/40 -36°	290/46 -37°	290/56 -47°
FWA	used from 849 nm out; 34 nm from the line	250/18	260/22 15°	260/27 7°	290/26 6°	290/28 -8°	290/39 -20°	280/36 -37°	290/54 -39°	310/60 -48°
CLE	used from 949 nm out; 67 nm from the line	280/17	270/17 14°	280/22 10°	290/26 4°	290/25 -8°	280/31 -21°	280/35 -36°	280/43 -44°	300/53 -48°
AGC	used from 1099 nm out; 59 nm from the line	270/15	320/17 14°	320/22 9°	340/23 4°	310/25 -8°	290/30 -19°	280/40 -36°	290/49 -45°	300/53 -49°
PSB	used from 1149 nm out; 44 nm from the line		330/23 14°	340/24 9°	340/25 3°	320/24 -8°	300/29 -20°	310/39 -36°	310/52 -46°	310/56 -50°
AVP	used from 1249 nm out; 46 nm from the line	330/21	340/24 14°	350/27 9°	350/25 3°	330/29 -8°	310/31 -20°	330/41 -36°	330/57 -46°	320/55 -51°
JFK	used from 1348 nm out; 38 nm from the line	360/20	340/23 11°	340/26 8°	350/26 3°	350/30 -8°	350/36 -21°	350/52 -36°	350/54 -44°	320/45 -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 Sky: a few clouds at 8,000 feet, a few clouds at 12,000 feet	from the south-southwest (210°) at 12 knots	10+ mi	none	5,433 ft	8:53 am MDT (14:53 UTC)
AKO Akron, CO	70 nm out, 5 nm north of the line	VFR	from the west (260°) at 12 knots	10+ mi	none	4,716 ft	14:53 UTC
EAR Kearney, NE	260 nm out, 6 nm northeast of the line	VFR	from the southwest (220°) at 13 knots, gusting to 20	10+ mi	none	2,131 ft	14:56 UTC
LNK Lincoln, NE	370 nm out, 5 nm southwest of the line, tower	VFR	from the south (190°) at 14 knots, gusting to 25	10+ mi	none	1,218 ft	14:54 UTC
DSM Des Moines, IA	509 nm out, 21 nm north of the line, tower	VFR Sky: a few clouds at 10,000 feet, a few clouds at 20,000 feet, a broken layer at 25,000 feet	from the south-southwest (210°) at 13 knots, gusting to 21	10+ mi	25,000 ft	957 ft	14:54 UTC
MLI Moline, IL	649 nm out, 6 nm north of the line, tower	VFR Sky: a few clouds at 12,000 feet	from the south-southwest (210°) at 10 knots	10+ mi	none	589 ft	14:52 UTC
LOT Chicago/Romeoville, IL	759 nm out, 10 nm north of the line, tower	VFR	from the southwest (220°) at 8 knots	10+ mi	none	679 ft	14:45 UTC
TOL Toledo, OH	949 nm out, 9 nm northeast of the line, tower	VFR Sky: scattered clouds at 2,000 feet	from the south-southwest (200°) at 5 knots	8 mi	none	683 ft	14:59 UTC
CLE Cleveland, OH	1039 nm out, 2 nm east of the line, tower	VFR Sky: scattered clouds at 1,000 feet, a broken layer at 25,000 feet	from the south-southwest (200°) at 8 knots	10+ mi	25,000 ft	799 ft	14:51 UTC
IPT Williamsport, PA	1259 nm out, 7 nm northeast of the line, tower	marginal VFR Sky: overcast at 2,200 feet	from the west (270°) at 10 knots	10+ mi	2,200 ft	528 ft	14:54 UTC
TEB Teterboro, NJ	1398 nm out, 5 nm southwest of the line, tower	VFR Sky: a broken layer at 3,100 feet, a broken layer at 4,100 feet	from the north (360°) at 6 knots, gusting to 15	10+ mi	3,100 ft	8 ft	14:51 UTC
ISP New York, NY	destination	marginal VFR Sky: a few clouds at 1,400 feet, a broken layer at 2,700 feet	from the north (010°) at 10 knots	10+ mi	2,700 ft	98 ft	10:56 am EDT (14:56 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 ISP when you get there the forecast at the estimated arrival, 7:26 pm EDT (23:26 UTC)

Wind from the north-northwest at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 4,000 feet VFR

The whole forecast for ISP

From Mon 11:00 am EDT (15:00 UTC): wind from the north at 11 knots, gusting to 20, visibility more than 6 miles, a broken layer at 1,500 feet
At times between Mon 12:00 pm EDT (16:00 UTC) and 1:00 pm EDT (17:00 UTC): scattered clouds at 1,500 feet, a broken layer at 3,500 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 4,000 feet
From Mon 10:00 pm EDT (02:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 5,000 feet, a few clouds at 15,000 feet

The forecast for DEN, the departure

From Mon 9:00 am MDT (15:00 UTC): wind from the south-southwest at 12 knots, visibility more than 6 miles, a few clouds at 8,000 feet, a few clouds at 12,000 feet
From Mon 11:00 am MDT (17:00 UTC): wind from the southwest at 14 knots, gusting to 21, visibility more than 6 miles, clear skies
At times between Mon 11:00 am MDT (17:00 UTC) and 1:00 pm MDT (19:00 UTC): wind light and variable
From Mon 7:00 pm MDT (01:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, clear skies
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 2,000 feet, scattered clouds at 4,000 feet
From Tue 4:00 am MDT (10:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, a broken layer at 2,000 feet
From Tue 10:00 am MDT (16:00 UTC): wind from the northeast at 7 knots, visibility more than 6 miles, a few clouds at 2,000 feet, a broken layer at 4,000 feet

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

6/8992 Monroe, MI, Thursday, October 15, 2026 Local 24 nm from the route, 969 nm along the route · a VIP movement · starts Thursday 15 October · ZOB
6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 1069 nm along the route · a VIP movement · today · ZOB
6/8888 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 6 nm from the route, 1099 nm along the route · security · today · ZOB
6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 1 nm from the route, 1099 nm along the route · a VIP movement · today · ZOB
5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 7 nm from the route, at the destination end · security · until 20 October · ZNY

Daylight

Sunset at DEN 6:22 pm MDT (00:22 UTC), at ISP 6:17 pm EDT (22:17 UTC) (civil twilight ends 6:44 pm EDT (22:44 UTC)). At 120 knots the arrival at ISP is after sunset there (6:17 pm EDT (22:17 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, Long Island Mac Arthur Airport.