Daniel K Inouye International to Washington Dulles International HNL → IAD
4,179 nautical miles (4,809 statute miles) northeast on a straight line, true course 055°, about 044° magnetic at the departure end (variation 11E). At 120 knots that is 34 h 15 min at the quickest height in today's winds (9,500 ft, a 2-knot tailwind), arriving about 1:20 pm EDT (17:20 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: 333 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 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 1959 to 2159 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 1959 to 1959 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 2329 to 2799 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 2379 to 2719 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 2379 to 2989 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 2589 to 3019 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 2729 to 2889 nm out.
- AIRMET TANGO 3W: 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 3009 to 3519 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 450 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 3999 to 4149 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 70 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 | 36 h 20 min | 3:25 pm EDT (19:25 UTC) | |
| 5,500 ft | 100° at 2 kt | +2 kt | 118 kt | 35 h 25 min | 2:30 pm EDT (18:30 UTC) | |
| 7,500 ft | 330° at 7 kt | −1 kt | 11 °C | 121 kt | 34 h 32 min | 1:37 pm EDT (17:37 UTC) |
| 9,500 ft | 340° at 15 kt | −2 kt | 8 °C | 122 kt | 34 h 15 min | 1:20 pm EDT (17:20 UTC) |
| 11,500 ft | 360° at 22 kt | +5 kt | 6 °C | 115 kt | 36 h 20 min | 3:25 pm EDT (19:25 UTC) |
| 13,500 ft | 010° at 27 kt | +10 kt | 6 °C | 110 kt | 37 h 59 min | 5:04 pm EDT (21:04 UTC) |
| 15,500 ft | 010° at 29 kt | +12 kt | 5 °C | 108 kt | 38 h 42 min | 5:47 pm EDT (21:47 UTC) |
| 17,500 ft | 020° at 24 kt | +13 kt | -1 °C | 107 kt | 39 h 03 min | 6:08 pm EDT (22:08 UTC) |
| 18,000 ft FL180 | 020° at 23 kt | +13 kt | -2 °C | 107 kt | 39 h 03 min | 6:08 pm EDT (22:08 UTC) |
| 24,000 ft FL240 | 030° at 6 kt | +4 kt | -14 °C | 116 kt | 36 h 02 min | 3:07 pm EDT (19:07 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 50 nm out; 71 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 550 nm out; 525 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 | ||||
| PAO Palo Alto, CA | 2089 nm out, 18 nm north of the line, tower | no report just now | 6 ft | ||||
| RHV San Jose, CA | 2099 nm out, 7 nm north of the line, tower | no report just now | 135 ft | ||||
| BJC Denver, CO | 2899 nm out, 1 nm east of the line, tower | no report just now | 5,673 ft | ||||
| CFO Denver, CO | 2929 nm out, 11 nm south of the line, tower | no report just now | 5,515 ft | ||||
| CMI Champaign/Urbana, IL | 3669 nm out, 7 nm southeast of the line, tower | no report just now | 754 ft | ||||
| CKB Clarksburg, WV | 4049 nm out, 3 nm south of the line, tower | no report just now | 1,223 ft | ||||
| IAD Washington, DC | destination | no report just now | 312 ft |
The highest airport on this list sits at 5,673 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At IAD when you get there the forecast at the estimated arrival, 1:20 pm EDT (17:20 UTC)
IAD has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 12 nm from the route, 2099 nm along the route · drones kept away from a public gathering · until 12 October · ZOA
- 6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC 3 nm from the route, 2219 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA
- 4/9383 WASHINGTON, DC., USA 8 nm from the route, at the destination end · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, at the destination end · a VIP movement · today · ZDC
Daylight
Sunset at HNL 6:09 pm HST (04:09 UTC), at IAD 6:36 pm EDT (22:36 UTC) (civil twilight ends 7:02 pm EDT (23:02 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, Washington Dulles International.