Plan a flight · Sun 6:02 pm AKDT (02:02 UTC)

Akiachak Seaplane Base to Houston County KKI → CHU

2,622 nautical miles (3,017 statute miles) east on a straight line, true course 080°, about 061° magnetic at the departure end (variation 19E). At 120 knots that is 16 h 11 min at the quickest height in today's winds (39,000 ft, a 42-knot tailwind), arriving about 1:13 pm CDT (18:13 UTC). 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: 4 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 route from 2173 to 2362 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 KKI.

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

B737 at 15,000 ft, 8 nm southeast, 4:35 pm AKDT (00:35 UTC): remarks: radar depicted weather zan. At the departure end, 8 nm southeast of the line.
as filed, and in English
```
BET UA /OV BET070035/TM 0035/FL150/TP B737/SK TOP150/RM RADAR DEPICTED WX /ZAN/
```
Report
a routine report filed through BET
Where
35 nm east (070°) of BET
Time
00:35 UTC
Height
at 15,000 ft
Aircraft
B737
Sky
TOP150
Remarks
radar depicted weather zan
C208 at 2,000 ft, 46 nm south, 4:55 pm AKDT (00:55 UTC): no turbulence, no icing, a broken layer above 2,000 ft, remarks: during the climb zan. 299 nm along the route, 46 nm south of the line.
as filed, and in English
```
ENA UA /OV ENA/TM 0055/FL020/TP C208/SK BKN020/TB NEG/IC NEG/RM DURC /ZAN/
```
Report
a routine report filed through ENA
Where
over ENA
Time
00:55 UTC
Height
at 2,000 ft
Aircraft
C208
Sky
a broken layer from 2,000 ft
Turbulence
none
Icing
none
Remarks
during the climb zan
PC12 at 4,000 ft, 2 nm north, 3:30 pm AKDT (23:30 UTC): no turbulence, no icing, remarks: during the climb northwest bound. 319 nm along the route, 2 nm north of the line.
as filed, and in English
```
ANC UA /OV TED300020/TM 2330/FL040/TP PC12/SK TOP070/TB NEG/IC NEG/RM DURC NORTHWEST BOUND
```
Report
a routine report filed through ANC
Where
20 nm northwest (300°) of TED
Time
23:30 UTC
Height
at 4,000 ft
Aircraft
PC12
Sky
TOP070
Turbulence
none
Icing
none
Remarks
during the climb northwest bound
MU2 at 7,000 ft, 31 nm south, 5:16 pm AKDT (01:16 UTC): no turbulence, no icing, remarks: during the climb. 329 nm along the route, 31 nm south of the line.
as filed, and in English
```
ANC UA /OV TED190020/TM 0116/FL070/TP MU2/SK BASES 040 TOPS 050 CLR ABV/TB NEG/IC NEG/RM DURC
```
Report
a routine report filed through ANC
Where
20 nm south (190°) of TED
Time
01:16 UTC
Height
at 7,000 ft
Aircraft
MU2
Sky
bases 4,000 ft tops 5,000 ft clear above
Turbulence
none
Icing
none
Remarks
during the climb
C207 at 1,200 ft, 9 nm southeast, 5:16 pm AKDT (01:16 UTC): no turbulence, no icing, a broken layer above 1,200 ft. 329 nm along the route, 9 nm southeast of the line.
as filed, and in English
```
MRI UA /OV MRI275004/TM 0116/FL012/TP C207/SK BKN012/TB NEG/IC NEG
```
Report
a routine report filed through MRI
Where
4 nm west (275°) of MRI
Time
01:16 UTC
Height
at 1,200 ft
Aircraft
C207
Sky
a broken layer from 1,200 ft
Turbulence
none
Icing
none
B737 at 5,000 ft, 17 nm south, 3:30 pm AKDT (23:30 UTC): no turbulence, no icing, remarks: during the descent gasto. 329 nm along the route, 17 nm south of the line.
as filed, and in English
```
ANC UA /OV TED230010/TM 2330/FL050/TP B737/TB NEG/IC NEG/RM DURD GASTO
```
Report
a routine report filed through ANC
Where
10 nm southwest (230°) of TED
Time
23:30 UTC
Height
at 5,000 ft
Aircraft
B737
Turbulence
none
Icing
none
Remarks
during the descent gasto
C207 at 1,000 ft, 10 nm southeast, 3:08 pm AKDT (23:08 UTC): no turbulence. 329 nm along the route, 10 nm southeast of the line.
as filed, and in English
```
MRI UA /OV MRI260003/TM 2308/FL010/TP C207/TB NEG
```
Report
a routine report filed through MRI
Where
3 nm west (260°) of MRI
Time
23:08 UTC
Height
at 1,000 ft
Aircraft
C207
Turbulence
none
B738 at 9,000 ft, 23 nm south, 5:22 pm AKDT (01:22 UTC): light turbulence from 5,000 ft to 8,500 ft, light rime icing from 5,000 ft to 8,500 ft, -5 °C, remarks: icing and turbulence in clouds during climb clear above. 339 nm along the route, 23 nm south of the line.
as filed, and in English
```
ANC UA /OV TED150010/TM 0122/FL090/TP B738/SK BASES 050 TOPS 085/TA M05/TB LGT 050-085/IC LGT RIME 050-085/RM ICING AND TURBULENCE IN CLOUDS DURING CLIMB. CLEAR ABOVE
```
Report
a routine report filed through ANC
Where
10 nm southeast (150°) of TED
Time
01:22 UTC
Height
at 9,000 ft
Aircraft
B738
Sky
bases 5,000 ft tops 8,500 ft
Temperature
−5 °C
Turbulence
light from 5,000 ft to 8,500 ft
Icing
light rime from 5,000 ft to 8,500 ft
Remarks
icing and turbulence in clouds during climb clear above
C172 at 900 ft, 10 nm south, 5:17 pm AKDT (01:17 UTC): no turbulence, a few clouds above 900 ft. 339 nm along the route, 10 nm south of the line.
as filed, and in English
```
MRI UA /OV MRI/TM 0117/FL009/TP C172/SK FEW009/TB NEG
```
Report
a routine report filed through MRI
Where
over MRI
Time
01:17 UTC
Height
at 900 ft
Aircraft
C172
Sky
a few clouds from 900 ft
Turbulence
none
BE20 at 2,000 ft, 10 nm south, 4:48 pm AKDT (00:48 UTC): no turbulence, no icing. 339 nm along the route, 10 nm south of the line.
as filed, and in English
```
MRI UA /OV MRI/TM 0048/FL020/TP BE20/WX FV20SM/TB NEG/IC NEG
```
Report
a routine report filed through MRI
Where
over MRI
Time
00:48 UTC
Height
at 2,000 ft
Aircraft
BE20
Weather
flight visibility 20 miles
Turbulence
none
Icing
none
B737 at 3,500 ft, 48 nm south, 3:07 pm AKDT (23:07 UTC): light chop turbulence, no icing, remarks: during the climb zan. 468 nm along the route, 48 nm south of the line.
as filed, and in English
```
CDV UA /OV CDV/TM 2307/FL035/TP B737/SK TOP 035/TB LGT CHOP/IC NEG/RM DURC ZAN
```
Report
a routine report filed through CDV
Where
over CDV
Time
23:07 UTC
Height
at 3,500 ft
Aircraft
B737
Sky
top 3,500 ft
Turbulence
light chop
Icing
none
Remarks
during the climb zan
B789 at 37,000 ft, 30 nm northeast, 3:10 pm AKDT (23:10 UTC): light chop turbulence. 2233 nm along the route, 30 nm northeast of the line.
as filed, and in English
```
GFK UA /OV GFK340040/TM 2310/FL370/TP B789/TB LGT CHOP
```
Report
a routine report filed through GFK
Where
40 nm north (340°) of GFK
Time
23:10 UTC
Height
at 37,000 ft
Aircraft
B789
Turbulence
light chop
PC12 at 1,500 ft, 9 nm east, 3:45 pm AKDT (23:45 UTC): overcast above 1,500 ft, 6 °C. 2263 nm along the route, 9 nm east 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, 2 nm east, 5:02 pm AKDT (01:02 UTC): overcast from 1,500 ft to 4,800 ft, 11 °C, remarks: during the climb. 2273 nm along the route, 2 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

6 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 8 forecast points nearest it (BET, MCG, ANC, GKN, ORT, YAK, JNU, ANN). 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	200° at 11 kt	0		120 kt	21 h 51 min	6:53 pm CDT (23:53 UTC)
5,500 ft	230° at 14 kt	−6 kt	-3 °C	126 kt	20 h 49 min	5:51 pm CDT (22:51 UTC)
7,500 ft	240° at 18 kt	−12 kt	-2 °C	132 kt	19 h 52 min	4:54 pm CDT (21:54 UTC)
9,500 ft	250° at 22 kt	−17 kt	-4 °C	137 kt	19 h 08 min	4:10 pm CDT (21:10 UTC)
11,500 ft	260° at 24 kt	−21 kt	-7 °C	141 kt	18 h 36 min	3:38 pm CDT (20:38 UTC)
13,500 ft	260° at 27 kt	−22 kt	-11 °C	142 kt	18 h 28 min	3:30 pm CDT (20:30 UTC)
15,500 ft	250° at 30 kt	−23 kt	-15 °C	143 kt	18 h 20 min	3:22 pm CDT (20:22 UTC)
17,500 ft	250° at 33 kt	−24 kt	-19 °C	144 kt	18 h 12 min	3:14 pm CDT (20:14 UTC)
18,000 ft FL180	250° at 33 kt	−24 kt	-20 °C	144 kt	18 h 12 min	3:14 pm CDT (20:14 UTC)
24,000 ft FL240	250° at 42 kt	−33 kt	-30 °C	153 kt	17 h 08 min	2:10 pm CDT (19:10 UTC)
30,000 ft FL300	250° at 48 kt	−34 kt	-44 °C	154 kt	17 h 02 min	2:04 pm CDT (19:04 UTC)
34,000 ft FL340	260° at 45 kt	−40 kt	-51 °C	160 kt	16 h 23 min	1:25 pm CDT (18:25 UTC)
39,000 ft FL390	260° at 47 kt	−42 kt	-54 °C	162 kt	16 h 11 min	1:13 pm CDT (18:13 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
BET	used from 0 nm out; 38 nm from the line	220/23	220/24 -7°	220/24 -13°	210/26 -20°	200/32 -31°	200/41 -42°	230/31 -49°	250/34 -49°	240/33 -47°
MCG	used from 100 nm out; 115 nm from the line	210/19	220/17 -6°	220/18 -13°	210/19 -19°	200/17 -30°	220/13 -40°	220/21 -53°	210/22 -52°	220/28 -48°
ANC	used from 199 nm out; 109 nm from the line	220/10	220/14 -6°	240/17 -11°	250/18 -18°	270/14 -31°	270/14 -40°	230/28 -51°	230/42 -49°	230/49 -46°
GKN	used from 399 nm out; 63 nm from the line	160/20	220/20 -4°	230/20 -11°	230/20 -18°	200/18 -32°	210/24 -42°	240/43 -47°	230/49 -47°	230/50 -46°
ORT	used from 548 nm out; 112 nm from the line		250/24 -3°	240/29 -10°	240/31 -17°	230/34 -31°	220/31 -41°	230/49 -47°	230/52 -46°	230/47 -45°
YAK	used from 598 nm out; 90 nm from the line	190/26	230/18 -2°	210/22 -8°	220/33 -13°	230/58 -25°	230/85 -34°	230/101 -46°	240/97 -49°	240/84 -48°
JNU	used from 748 nm out; 130 nm from the line	150/18	210/22 -3°	240/32 -4°	240/39 -10°	250/59 -18°	240/76 -28°	240/83 -43°	250/89 -52°	250/74 -53°
ANN	used from 1096 nm out; 330 nm from the line	210/8	240/13 3°	270/21 1°	280/26 -3°	260/33 -15°	270/42 -26°	260/43 -41°	280/38 -51°	280/45 -58°

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
KKI Akiachak, AK	departure	no report just now				18 ft
TLT Tuluksak, AK	20 nm out, 9 nm northwest of the line	no report just now				35 ft
MRI Anchorage, AK	339 nm out, 10 nm south of the line, tower	VFR Sky: scattered clouds at 3,600 feet, overcast at 4,600 feet	from the north-northwest (330°) at 4 knots	10+ mi	4,600 ft	143 ft	01:53 UTC
CYXY Whitehorse,	768 nm out, 11 nm north of the line, tower	VFR Sky: a few clouds at 4,000 feet, a broken layer at 5,900 feet, overcast at 10,000 feet	from the south-southeast (150°) at 11 knots, gusting to 18	40 mi	5,900 ft	2,317 ft	01:00 UTC
CYZW Teslin,	837 nm out, 5 nm southeast of the line	VFR Sky: overcast at 5,300 feet	from the south (190°) at 10 knots	30 mi	5,300 ft	2,313 ft	00:00 UTC
GFK Grand Forks, ND	2273 nm out, 8 nm north of the line, tower	IFR Sky: overcast at 800 feet Weather: light rain	from the north (010°) at 13 knots	8 mi	800 ft	845 ft	01:53 UTC
MIC Minneapolis, MN	2502 nm out, 1 nm southeast of the line, tower	VFR	from the south (170°) at 7 knots	10+ mi	none	869 ft	01:53 UTC
CHU Caledonia, MN	destination	no report just now				1,179 ft

The highest airport on this list sits at 2,317 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At CHU when you get there the forecast at the estimated arrival, 1:13 pm CDT (18:13 UTC)

CHU has no terminal forecast; use the nearest airport that does.

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

6/8889 Anchorage, AK, Tuesday, October 13, 2026 through Tuesday, October 13, 2026 Local on the route, 319 nm along the route · a VIP movement · starts tomorrow · ZAN
6/8772 Anchorage, AK, Tuesday, October 13, 2026 through Tuesday, October 13, 2026 Local 6 nm from the route, 339 nm along the route · security · starts tomorrow · ZAN
6/4348 GRAND FORKS AFB, ND, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local on the route, 2253 nm along the route · security · until 1 November · ZMP
6/6656 ANOKA, MN, Monday, October 5, 2026 through Monday, October 19, 2026 Local 6 nm from the route, 2492 nm along the route · security · until 19 October · ZMP

Daylight

Sunset at KKI 7:43 pm AKDT (03:43 UTC), at CHU 6:28 pm CDT (23:28 UTC) (civil twilight ends 6:56 pm CDT (23:56 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, Alaska · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar now, the upper Mississippi valley · 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: Akiachak Seaplane Base, Houston County.