Guam International to Rickenbacker International GUM → LCK
6,645 nautical miles (7,647 statute miles) northeast on a straight line, true course 037°, about 035° magnetic at the departure end (variation 2E). At 120 knots that is 52 h 44 min at the quickest height in today's winds (39,000 ft, a 6-knot tailwind), arriving about 11:55 am EDT (15:55 UTC). Right now GUM is VFR, wind from the west-northwest (290°) at 4 knots; LCK is marginal VFR, wind from the west (260°) 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 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 5636 to 6016 nm out.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Near the route, 5636 nm along 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 160 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 GUM.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 18 forecast points nearest it (AST, CAR, AST, SEA, GEG, GPI, GTF, GGW, MOT, GFK, AXN, MSP, LSE, GRB, JOT, MKG, FWA, CMH). 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 | 290° at 2 kt | −1 kt | 121 kt | 54 h 55 min | 2:06 pm EDT (18:06 UTC) | |
| 5,500 ft | 330° at 4 kt | +1 kt | -1 °C | 119 kt | 55 h 50 min | 3:01 pm EDT (19:01 UTC) |
| 7,500 ft | 340° at 8 kt | +2 kt | 1 °C | 118 kt | 56 h 19 min | 3:30 pm EDT (19:30 UTC) |
| 9,500 ft | 340° at 12 kt | +5 kt | -1 °C | 115 kt | 57 h 47 min | 4:58 pm EDT (20:58 UTC) |
| 11,500 ft | 350° at 20 kt | +9 kt | -2 °C | 111 kt | 59 h 52 min | 7:03 pm EDT (23:03 UTC) |
| 13,500 ft | 350° at 25 kt | +11 kt | -5 °C | 109 kt | 60 h 58 min | 8:09 pm EDT (00:09 UTC) |
| 15,500 ft | 350° at 30 kt | +13 kt | -9 °C | 107 kt | 62 h 06 min | 9:17 pm EDT (01:17 UTC) |
| 17,500 ft | 350° at 34 kt | +14 kt | -13 °C | 106 kt | 62 h 41 min | 9:52 pm EDT (01:52 UTC) |
| 18,000 ft FL180 | 350° at 36 kt | +15 kt | -14 °C | 105 kt | 63 h 17 min | 10:28 pm EDT (02:28 UTC) |
| 24,000 ft FL240 | 340° at 40 kt | +9 kt | -25 °C | 111 kt | 59 h 52 min | 7:03 pm EDT (23:03 UTC) |
| 30,000 ft FL300 | 340° at 41 kt | +11 kt | -39 °C | 109 kt | 60 h 58 min | 8:09 pm EDT (00:09 UTC) |
| 34,000 ft FL340 | 340° at 45 kt | +7 kt | -47 °C | 113 kt | 58 h 48 min | 5:59 pm EDT (21:59 UTC) |
| 39,000 ft FL390 | 320° at 33 kt | −6 kt | -47 °C | 126 kt | 52 h 44 min | 11:55 am EDT (15:55 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| AST | used from 0 nm out; 4852 nm from the line | L/V | 340/6 1° | 350/17 -2° | 360/32 -3° | 360/50 -14° | 350/55 -26° | 350/58 -40° | 350/62 -49° | 340/40 -47° |
| CAR | used from 2548 nm out; 2773 nm from the line | 300/29 | 280/23 8° | 280/33 4° | 280/40 -1° | 280/40 -14° | 300/46 -24° | 290/44 -41° | 270/57 -50° | 260/73 -54° |
| AST | used from 2598 nm out; 2283 nm from the line | L/V | 340/6 1° | 350/17 -2° | 360/32 -3° | 360/50 -14° | 350/55 -26° | 350/58 -40° | 350/62 -49° | 340/40 -47° |
| SEA | used from 4247 nm out; 730 nm from the line | 350/5 | 010/6 0° | 010/9 -4° | 010/27 -6° | 010/51 -15° | 360/58 -26° | 360/60 -41° | 350/55 -48° | 340/30 -45° |
| GEG | used from 4947 nm out; 313 nm from the line | 060/7 -2° | 070/12 -6° | 050/8 -8° | 120/11 -21° | 110/18 -33° | 030/22 -37° | 040/6 -38° | 240/7 -41° | |
| GPI | used from 4997 nm out; 290 nm from the line | 090/8 -4° | 140/7 -7° | 090/10 -8° | 110/10 -19° | 210/25 -30° | 200/24 -40° | 210/31 -39° | 210/35 -42° | |
| GTF | used from 5296 nm out; 219 nm from the line | L/V | L/V -7° | 240/8 -8° | 240/30 -14° | 240/40 -28° | 210/52 -38° | 210/76 -38° | 220/72 -43° | |
| GGW | used from 5346 nm out; 180 nm from the line | 100/7 -1° | 070/10 -3° | 190/6 -4° | 210/34 -10° | 230/33 -24° | 210/48 -37° | 230/65 -40° | 230/71 -46° | |
| MOT | used from 5596 nm out; 89 nm from the line | 120/14 4° | 190/25 5° | 220/41 1° | 240/43 -11° | 230/39 -22° | 220/44 -38° | 240/62 -42° | 250/73 -48° | |
| GFK | used from 5796 nm out; 63 nm from the line | 080/18 | L/V 11° | 260/22 7° | 250/48 3° | 260/51 -11° | 250/44 -22° | 260/34 -38° | 260/53 -44° | 270/66 -49° |
| AXN | used from 5896 nm out; 72 nm from the line | 110/6 | 260/10 16° | 240/17 12° | 250/20 5° | 260/29 -10° | 260/35 -22° | 260/29 -38° | 270/48 -41° | 270/61 -48° |
| MSP | used from 6046 nm out; 37 nm from the line | 250/12 | 250/17 17° | 240/26 12° | 250/26 5° | 280/26 -9° | 280/32 -22° | 270/37 -38° | 280/47 -41° | 280/55 -48° |
| LSE | used from 6146 nm out; 42 nm from the line | 250/25 | 240/21 17° | 240/28 11° | 250/28 5° | 280/24 -10° | 280/31 -21° | 260/35 -37° | 270/45 -43° | 280/59 -47° |
| GRB | used from 6296 nm out; 84 nm from the line | 250/32 | 250/22 17° | 240/18 8° | 280/21 6° | 280/34 -11° | 280/35 -21° | 280/39 -37° | 270/52 -45° | 290/60 -49° |
| JOT | used from 6346 nm out; 71 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 6396 nm out; 67 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° |
| FWA | used from 6446 nm out; 51 nm from the line | 270/20 | 300/16 15° | 290/14 10° | 280/17 3° | 290/25 -7° | 280/30 -19° | 280/34 -35° | 290/48 -44° | 300/64 -52° |
| CMH | used from 6595 nm out; 22 nm from the line | 320/12 | 340/26 15° | 340/22 9° | 320/24 3° | 320/32 -7° | 320/36 -20° | 330/42 -35° | 320/59 -44° | 320/57 -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 |
|---|---|---|---|---|---|---|---|
| GUM Tamuning, GU | departure | VFR Sky: a few clouds at 2,000 feet | from the west-northwest (290°) at 4 knots | 10+ mi | none | 305 ft | 8:54 pm ChST (10:54 UTC) |
| GSN Saipan Island, MP | 110 nm out, 17 nm northwest of the line, tower | VFR | from the north (360°) at 3 knots | 10+ mi | none | 214 ft | 10:54 UTC |
| FAR Fargo, ND | 5906 nm out, 1 nm northeast of the line, tower | low IFR Sky: overcast at 400 feet Weather: mist | from the north-northeast (030°) at 12 knots | 5 mi | 400 ft | 901 ft | 10:53 UTC |
| EKM Elkhart, IN | 6465 nm out, 2 nm north of the line, tower | VFR Sky: a few clouds at 27,000 feet | calm | 8 mi | none | 777 ft | 10:55 UTC |
| LCK Columbus, OH | destination | marginal VFR Sky: overcast at 1,200 feet | from the west (260°) at 4 knots | 10+ mi | 1,200 ft | 743 ft | 6:55 am EDT (10:55 UTC) |
The highest airport on this list sits at 901 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LCK when you get there the forecast at the estimated arrival, 11:55 am EDT (15:55 UTC)
Wind from the south at 5 knots, visibility more than 6 miles, a few clouds at 10,000 feet, scattered clouds at 25,000 feet VFR
The whole forecast for LCK
- From Mon 2:00 am EDT (06:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, overcast at 1,200 feet
- From Mon 4:00 am EDT (08:00 UTC): wind from the west at 4 knots, visibility 4 miles, mist, overcast at 800 feet
- At times between Mon 6:00 am EDT (10:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 2 miles, mist, scattered clouds at 800 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, a few clouds at 10,000 feet, scattered clouds at 25,000 feet
The forecast for GUM, the departure
- From Mon 4:00 pm ChST (06:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, showers nearby, a few clouds at 1,600 feet, scattered clouds at 2,500 feet and more above
Temporary flight restrictions on the line or within 25 nm of it
- 6/2520 S. FINEGAYAN, GU 4 nm from the route, at the departure end · security · ZUA
- 6/4143 ANDERSEN AFB, GU, Monday, March 9, 2026 through Tuesday, March 9, 2027 Local on the route, at the departure end · security · until 9 March · ZUA
- 6/6656 ANOKA, MN, Monday, October 5, 2026 through Monday, October 19, 2026 Local 12 nm from the route, 6086 nm along the route · security · until 19 October · ZMP
Daylight
Sunset at GUM 6:03 pm ChST (08:03 UTC), at LCK 6:57 pm EDT (22:57 UTC) (civil twilight ends 7:24 pm EDT (23:24 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
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: Guam International, Rickenbacker International.