Plan a flight · Sun 9:41 pm CDT (02:41 UTC)

Grand Forks International to Denver International GFK → DEN

583 nautical miles (671 statute miles) southwest on a straight line, true course 216°, about 210° magnetic at the departure end (variation 6E). At 120 knots that is 5 h 15 min at the quickest height in today's winds (4,500 ft, a 9-knot headwind), arriving about 1:56 am MDT (07:56 UTC), after sunset at the destination. Right now GFK is IFR, wind from the north (010°) at 13 knots; DEN is VFR, wind from the south-southwest (200°) at 14 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: 6 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 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 89 nm of the route.
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 227 to 336 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 178 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 99 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 GFK.

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

A21N at 32,000 ft, 21 nm southeast, 6:42 pm CDT (23:42 UTC): moderate chop turbulence, remarks: ZDVWC-61. 544 nm along the route, 21 nm southeast of the line.
as filed, and in English
```
AKO UA /OV AKO270030/TM 2342/FL320/TP A21N/TB INTMT MOD CHOP/RM ZDVWC-61
```
Report
a routine report filed through AKO
Where
30 nm west (270°) of AKO
Time
23:42 UTC
Height
at 32,000 ft
Aircraft
A21N
Turbulence
intermittent moderate chop
Remarks
ZDVWC-61
GLF4 at 25,000 ft, 41 nm southwest, 9:05 pm CDT (02:05 UTC): moderate turbulence, remarks: during the climb ZDVWC-05. At the destination end, 41 nm southwest of the line.
as filed, and in English
```
DEN UA /OV FQF250040/TM 0205/FL250/TP GLF4/TB MOD /RM DURC ZDVWC-05
```
Report
a routine report filed through DEN
Where
40 nm west (250°) of FQF
Time
02:05 UTC
Height
at 25,000 ft
Aircraft
GLF4
Turbulence
moderate
Remarks
during the climb ZDVWC-05
BCS1 at 24,000 ft, 28 nm west, 8:30 pm CDT (01:30 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the climb ZDVWC-05. At the destination end, 28 nm west of the line.
as filed, and in English
```
DEN UA /OV DVV270030/TM 0130/FL240/TP BCS1/TB MOD 220-240/RM DURC ZDVWC-05
```
Report
a routine report filed through DEN
Where
30 nm west (270°) of DVV
Time
01:30 UTC
Height
at 24,000 ft
Aircraft
BCS1
Turbulence
moderate from 22,000 ft to 24,000 ft
Remarks
during the climb ZDVWC-05
CRJ7 at 1,500 ft, 2 nm east, 7:01 pm CDT (00:01 UTC): overcast above 1,500 ft. At the departure end, 2 nm east of the line.
as filed, and in English
```
GFK UA /OV GFK090002/TM 0001/FL015/TP CRJ7/SK OVC015
```
Report
a routine report filed through GFK
Where
2 nm east (090°) of GFK
Time
00:01 UTC
Height
at 1,500 ft
Aircraft
CRJ7
Sky
overcast from 1,500 ft
PC12 at 1,500 ft, 1 nm north, 6:45 pm CDT (23:45 UTC): overcast above 1,500 ft, 6 °C. At the departure end, 1 nm north of the line.
as filed, and in English
```
GFK UA /OV GFK350001/TM 2345/FL015/TP PC12/SK OVC015/TA 06
```
Report
a routine report filed through GFK
Where
1 nm north (350°) of GFK
Time
23:45 UTC
Height
at 1,500 ft
Aircraft
PC12
Sky
overcast from 1,500 ft
Temperature
6 °C
CRJ7 at 5,000 ft, 6 nm east, 8:02 pm CDT (01:02 UTC): overcast from 1,500 ft to 4,800 ft, 11 °C, remarks: during the climb. At the departure end, 6 nm east of the line.
as filed, and in English
```
GFK UA /OV GFK170008/TM 0102/FL050/TP CRJ7/SK OVC015-TOP048/TA 11/RM DURC
```
Report
a routine report filed through GFK
Where
8 nm south (170°) of GFK
Time
01:02 UTC
Height
at 5,000 ft
Aircraft
CRJ7
Sky
overcast from 1,500 ft, tops 4,800 ft
Temperature
11 °C
Remarks
during the climb
E75L at 900 ft, 48 nm southeast, 8:57 pm CDT (01:57 UTC): no icing, overcast above 1,200 ft. 40 nm along the route, 48 nm southeast of the line.
as filed, and in English
```
FAR UA /OV KFAR/TM 0157/FL009/TP E75L/SK OVC012/IC NEG
```
Report
a routine report filed through FAR
Where
over KFAR
Time
01:57 UTC
Height
at 900 ft
Aircraft
E75L
Sky
overcast from 1,200 ft
Icing
none
A320 descending, 48 nm southeast, 8:01 pm CDT (01:01 UTC): overcast above 1,200 ft, remarks: during the descent runway 36. 40 nm along the route, 48 nm southeast of the line.
as filed, and in English
```
FAR UA /OV KFAR/TM 0101/FLUNKN/TP A320/SK OVC012-TOPUNKN/RM DURD RWY 36
```
Report
a routine report filed through FAR
Where
over KFAR
Time
01:01 UTC
Height
height not given
Aircraft
A320
Sky
overcast from 1,200 ft, tops unknown
Remarks
during the descent runway 36
PC12 at 16,000 ft, 38 nm northwest, 7:12 pm CDT (00:12 UTC): light icing, -6 °C. 69 nm along the route, 38 nm northwest of the line.
as filed, and in English
```
JMS UA /OV JMS332028/TM 0012/FL160/TP PC12/TA M06/IC LGT CLR
```
Report
a routine report filed through JMS
Where
28 nm northwest (332°) of JMS
Time
00:12 UTC
Height
at 16,000 ft
Aircraft
PC12
Temperature
−6 °C
Icing
light clear
CRJ2 at 11,000 ft, 14 nm northwest, 7:53 pm CDT (00:53 UTC): no turbulence, no icing. 89 nm along the route, 14 nm northwest of the line.
as filed, and in English
```
JMS UA /OV JMS/TM 0053/FL110/TP CRJ2/SK BASE020-TOP040/TB NEG/IC NEG
```
Report
a routine report filed through JMS
Where
over JMS
Time
00:53 UTC
Height
at 11,000 ft
Aircraft
CRJ2
Sky
BASE020-TOP040
Turbulence
none
Icing
none
B763 at 32,000 ft, 7 nm southeast, 8:29 pm CDT (01:29 UTC): light to moderate clear-air turbulence, remarks: zdvwc. 297 nm along the route, 7 nm southeast of the line.
as filed, and in English
```
RAP UA /OV RAP084081/TM 0129/FL320/TP B763/TB OCNL LGT-MOD CAT/RM ZDVWC
```
Report
a routine report filed through RAP
Where
81 nm east (084°) of RAP
Time
01:29 UTC
Height
at 32,000 ft
Aircraft
B763
Turbulence
occasional light to moderate clear-air turbulence
Remarks
zdvwc
E75L at 10,000 ft, 12 nm northwest, 6:45 pm CDT (23:45 UTC): light turbulence up to 17,000 ft, remarks: during the climb. At the destination end, 12 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN350025/TM 2345/FL100/TP E75L/TB LGT SFC-170/RM DURC
```
Report
a routine report filed through DEN
Where
25 nm north (350°) of DEN
Time
23:45 UTC
Height
at 10,000 ft
Aircraft
E75L
Turbulence
light from the surface to 17,000 ft
Remarks
during the climb
A320 at 8,000 ft, 27 nm east, 6:42 pm CDT (23:42 UTC): light chop turbulence from 8,000 ft to 16,000 ft, remarks: during the climb. At the destination end, 27 nm east of the line.
as filed, and in English
```
DEN UA /OV DEN080030/TM 2342/FL080/TP A320/TB LGT CHOP 080-160/RM DURC
```
Report
a routine report filed through DEN
Where
30 nm east (080°) of DEN
Time
23:42 UTC
Height
at 8,000 ft
Aircraft
A320
Turbulence
light chop from 8,000 ft to 16,000 ft
Remarks
during the climb
B737 descending, 3 nm south, 9:29 pm CDT (02:29 UTC): no turbulence up to 10,000 ft. At the destination end, 3 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0229/FLDURD/TP B737/TB NEG BLO 100
```
Report
a routine report filed through DEN
Where
over DEN
Time
02:29 UTC
Height
during the descent
Aircraft
B737
Turbulence
no below 10,000 ft

5 more routine reports are on the map.

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 6 forecast points nearest it (GFK, ABR, PIR, RAP, BFF, DEN). 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	160° at 14 kt	+9 kt	16 °C	111 kt	5 h 15 min	1:56 am MDT (07:56 UTC)
6,500 ft	190° at 16 kt	+14 kt	14 °C	106 kt	5 h 30 min	2:11 am MDT (08:11 UTC)
8,500 ft	220° at 20 kt	+20 kt	12 °C	100 kt	5 h 50 min	2:31 am MDT (08:31 UTC)
10,500 ft	230° at 26 kt	+26 kt	9 °C	94 kt	6 h 12 min	2:53 am MDT (08:53 UTC)
12,500 ft	230° at 31 kt	+30 kt	4 °C	90 kt	6 h 29 min	3:10 am MDT (09:10 UTC)
14,500 ft	230° at 31 kt	+30 kt	-1 °C	90 kt	6 h 29 min	3:10 am MDT (09:10 UTC)
16,500 ft	240° at 32 kt	+30 kt	-6 °C	90 kt	6 h 29 min	3:10 am MDT (09:10 UTC)
18,000 ft FL180	240° at 32 kt	+30 kt	-9 °C	90 kt	6 h 29 min	3:10 am MDT (09:10 UTC)
24,000 ft FL240	240° at 38 kt	+34 kt	-21 °C	86 kt	6 h 47 min	3:28 am MDT (09:28 UTC)
30,000 ft FL300	240° at 38 kt	+34 kt	-35 °C	86 kt	6 h 47 min	3:28 am MDT (09:28 UTC)
34,000 ft FL340	250° at 46 kt	+36 kt	-40 °C	84 kt	6 h 56 min	3:37 am MDT (09:37 UTC)
39,000 ft FL390	250° at 53 kt	+41 kt	-48 °C	79 kt	7 h 23 min	4:04 am MDT (10:04 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
GFK	used from 0 nm out; 25 nm from the line	070/18	100/10 9°	250/11 6°	250/27 1°	250/34 -10°	260/43 -21°	260/39 -36°	260/36 -46°	260/59 -53°
ABR	used from 99 nm out; 54 nm from the line	070/14	250/10 17°	270/16 11°	260/28 5°	260/36 -10°	260/41 -22°	270/33 -37°	260/42 -42°	260/50 -48°
PIR	used from 198 nm out; 32 nm from the line		170/22 19°	190/25 13°	210/32 6°	240/23 -9°	250/32 -21°	250/38 -36°	260/44 -40°	260/52 -47°
RAP	used from 297 nm out; 72 nm from the line		180/23 12°	200/38 13°	210/38 6°	220/28 -10°	230/34 -21°	230/37 -36°	250/52 -38°	250/59 -46°
BFF	used from 395 nm out; 41 nm from the line		180/28	220/33 15°	210/31 7°	230/32 -9°	220/41 -21°	220/40 -33°	240/47 -36°	250/54 -46°
DEN	used from 494 nm out; 64 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°

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
GFK Grand Forks, ND	departure	IFR Sky: overcast at 800 feet Weather: light rain	from the north (010°) at 13 knots	8 mi	800 ft	845 ft	8:53 pm CDT (01:53 UTC)
BAC Valley City, ND	69 nm out, 8 nm southeast of the line	IFR Sky: overcast at 800 feet	from the north (010°) at 14 knots	10+ mi	800 ft	1,401 ft	02:15 UTC
ASY Ashley, ND	148 nm out, 6 nm northwest of the line	no report just now				2,034 ft
PIR Pierre, SD	247 nm out, 18 nm southeast of the line	marginal VFR Sky: overcast at 1,200 feet	from the east-northeast (070°) at 7 knots	10+ mi	1,200 ft	1,744 ft	01:53 UTC
PHP Philip, SD	297 nm out, 18 nm northwest of the line	marginal VFR Sky: overcast at 1,400 feet Weather: mist	from the east-northeast (070°) at 7 knots	6 mi	1,400 ft	2,209 ft	02:34 UTC
GRN Gordon, NE	376 nm out, 3 nm east of the line	low IFR Sky: overcast at 300 feet	from the east-northeast (070°) at 8 knots	7 mi	300 ft	3,562 ft	02:35 UTC
AIA Alliance, NE	425 nm out, 3 nm southeast of the line	VFR	from the east (090°) at 10 knots	10+ mi	none	3,930 ft	01:53 UTC
IBM Kimball, NE	494 nm out, 4 nm north of the line	VFR	from the east-southeast (120°) at 15 knots, gusting to 20	10+ mi	none	4,925 ft	02:15 UTC
GXY Greeley, CO	554 nm out, 16 nm northwest of the line	marginal VFR Weather: haze	from the south-southeast (160°) at 16 knots, gusting to 24	5 mi	none	4,696 ft	01:56 UTC
DEN Denver, CO	destination	VFR Sky: a few clouds at 14,000 feet, a broken layer at 22,000 feet	from the south-southwest (200°) at 14 knots	10+ mi	22,000 ft	5,433 ft	7:53 pm MDT (01:53 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 DEN when you get there the forecast at the estimated arrival, 1:56 am MDT (07:56 UTC)

Wind from the south at 11 knots, visibility more than 6 miles, a few clouds at 22,000 feet VFR

The whole forecast for DEN

From Sun 7:00 pm MDT (01:00 UTC): wind from the south at 14 knots, gusting to 21, visibility more than 6 miles, a few clouds at 10,000 feet, a few clouds at 14,000 feet and more above
From Sun 7:00 pm MDT (01:00 UTC): wind from the southwest at 14 knots, gusting to 23, visibility more than 6 miles, a few clouds at 14,000 feet, scattered clouds at 22,000 feet
From Mon 1:00 am MDT (07:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a few clouds at 22,000 feet
From Mon 9:00 am MDT (15:00 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, clear skies

The forecast for GFK, the departure

From Sun 8:00 pm CDT (01:00 UTC): wind from the north at 14 knots, visibility more than 6 miles, overcast at 700 feet
From Mon 5:00 am CDT (10:00 UTC): wind from the north-northeast at 11 knots, visibility more than 6 miles, overcast at 600 feet
30% chance between Mon 5:00 am CDT (10:00 UTC) and 11:00 am CDT (16:00 UTC): light rain showers
From Mon 11:00 am CDT (16:00 UTC): wind from the north-northeast at 10 knots, visibility more than 6 miles, light rain showers, overcast at 700 feet

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

6/4348 GRAND FORKS AFB, ND, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 3 nm from the route, at the departure end · security · until 1 November · ZMP

Daylight

Sunset at GFK 6:46 pm CDT (23:46 UTC), at DEN 6:24 pm MDT (00:24 UTC) (civil twilight ends 6:51 pm MDT (00:51 UTC)). At 120 knots the arrival at DEN is before sunrise there (7:05 am MDT (13:05 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 northern Rockies · loop National Weather Service

Radar now, the southern Rockies · 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: Grand Forks International, Denver International.