Daniel K Inouye International to General Edward Lawrence Logan International HNL → BOS
4,420 nautical miles (5,087 statute miles) northeast on a straight line, true course 050°, about 039° magnetic at the departure end (variation 11E). At 120 knots that is 36 h 32 min at the quickest height in today's winds (9,500 ft, a 1-knot tailwind), arriving about 12:04 pm EDT (16:04 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: 134 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
- SIGMET W12W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 20 knots, until 6:55 pm HST (04:55 UTC). Over the route from 2425 to 2504 nm out.
as issued
WSUS33 KKCI 120255 MKCW WST 120255 CONVECTIVE SIGMET 12W VALID UNTIL 0455Z NV FROM 40SSE TWF-10W ELY-30SE OAL-30W OAL-70WSW TWF-40SSE TWF AREA TS MOV FROM 24020KT. TOPS TO FL310.
- SIGMET 2C: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 6:55 pm HST (04:55 UTC). Over the route from 2894 to 2904 nm out.
as issued
WSUS32 KKCI 120255 MKCC WST 120255 CONVECTIVE SIGMET 2C VALID UNTIL 0455Z NE CO WY FROM 40SE CZI-30WNW BFF-30SSE LAR-70NW LAR-40SE CZI AREA TS MOV FROM 22040KT. TOPS TO FL310.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 1936 to 2285 nm out.
- AIRMET TANGO 2W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 1946 to 2025 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 2355 to 2834 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 2455 to 2824 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 2644 to 2943 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 2654 to 3033 nm out.
- 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 2684 to 2904 nm out.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 2744 to 2754 nm out.
- 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 2754 to 3123 nm out.
- 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 3223 to 3253 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 569 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 339 nm of the route.
- AIRMET ZULU 1C: moderate icing up to 25,000 ft. Over the last 269 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 4191 to 4340 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the last 170 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 HNL.
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 02:00–09:00 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 3 forecast points nearest it (HNL, OGG, ITO). 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 | 120° at 8 kt | +5 kt | 115 kt | 38 h 26 min | 1:58 pm EDT (17:58 UTC) | |
| 5,500 ft | 100° at 3 kt | +3 kt | 117 kt | 37 h 47 min | 1:19 pm EDT (17:19 UTC) | |
| 7,500 ft | 340° at 7 kt | 0 | 11 °C | 120 kt | 36 h 50 min | 12:22 pm EDT (16:22 UTC) |
| 9,500 ft | 340° at 15 kt | −1 kt | 8 °C | 121 kt | 36 h 32 min | 12:04 pm EDT (16:04 UTC) |
| 11,500 ft | 360° at 22 kt | +7 kt | 6 °C | 113 kt | 39 h 07 min | 2:39 pm EDT (18:39 UTC) |
| 13,500 ft | 010° at 27 kt | +11 kt | 6 °C | 109 kt | 40 h 33 min | 4:05 pm EDT (20:05 UTC) |
| 15,500 ft | 010° at 29 kt | +13 kt | 5 °C | 107 kt | 41 h 19 min | 4:51 pm EDT (20:51 UTC) |
| 17,500 ft | 020° at 23 kt | +13 kt | -1 °C | 107 kt | 41 h 19 min | 4:51 pm EDT (20:51 UTC) |
| 18,000 ft FL180 | 020° at 22 kt | +13 kt | -2 °C | 107 kt | 41 h 19 min | 4:51 pm EDT (20:51 UTC) |
| 24,000 ft FL240 | 030° at 6 kt | +5 kt | -14 °C | 115 kt | 38 h 26 min | 1:58 pm EDT (17:58 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 | 1,000 | 1,500 | 2,000 | 3,000 | 6,000 | 9,000 | 12,000 | 15,000 | 18,000 | 24,000 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| HNL | used from 0 nm out; 25 nm from the line | 070/9 | 070/10 | 070/11 | 100/12 | 070/10 17° | 010/19 12° | 020/21 7° | 340/18 4° | 040/6 -2° | L/V -15° |
| OGG | used from 100 nm out; 105 nm from the line | 090/11 | 090/12 | 100/12 | 100/10 | 070/10 16° | 050/17 11° | 020/27 6° | 360/32 5° | 040/16 -2° | 040/9 -15° |
| ITO | used from 848 nm out; 827 nm from the line | L/V | L/V | 110/6 | 130/10 | L/V 12° | 320/16 9° | 360/24 6° | 010/31 6° | 020/24 -2° | 030/6 -14° |
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 |
|---|---|---|---|---|---|---|---|
| HNL Honolulu, HI | departure | no report just now | 13 ft | ||||
| CIC Chico, CA | 2145 nm out, 15 nm southeast of the line, tower | no report just now | 240 ft | ||||
| SVE Susanville, CA | 2215 nm out, 2 nm southeast of the line | no report just now | 4,149 ft | ||||
| CPR Casper, WY | 2864 nm out, 21 nm south of the line, tower | no report just now | 5,344 ft | ||||
| RST Rochester, MN | 3472 nm out, 20 nm south of the line, tower | no report just now | 1,317 ft | ||||
| ATW Appleton, WI | 3652 nm out, 5 nm northwest of the line, tower | no report just now | 918 ft | ||||
| SCH Schenectady, NY | 4290 nm out, 3 nm west of the line, tower | no report just now | 377 ft | ||||
| BOS Boston, MA | destination | no report just now | 19 ft |
The highest airport on this list sits at 5,344 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BOS when you get there the forecast at the estimated arrival, 12:04 pm EDT (16:04 UTC)
BOS has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 18 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
Daylight
Sunset at HNL 6:09 pm HST (04:09 UTC), at BOS 6:07 pm EDT (22:07 UTC) (civil twilight ends 6:35 pm EDT (22:35 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: Daniel K Inouye International, General Edward Lawrence Logan International.