Ontario International to Baltimore/Washington International Thurgood Marshall ONT → BWI
1,979 nautical miles (2,278 statute miles) east on a straight line, true course 069°, about 057° magnetic at the departure end (variation 12E). At 120 knots that is 10 h 49 min at the quickest height in today's winds (34,000 ft, a 63-knot tailwind), arriving about 8:46 pm EDT (00:46 UTC), after sunset at the destination. 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: 560 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 below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the first 80 nm of the route.
- AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 50 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 180 to 560 nm out.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 210 to 300 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 230 to 470 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 260 to 740 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 540 to 680 nm out.
- AIRMET TANGO 2W: 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 930 to 1280 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 route from 1630 to 1859 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1760 to 1919 nm out.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 1849 to 1939 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 ONT.
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 19 forecast points nearest it (ONT, BLH, LAS, PRC, FMN, ALS, PUB, GCK, SLN, MKC, COU, STL, SPI, IND, CVG, CMH, CRW, EKN, RIC). 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 | 260° at 23 kt | −24 kt | 144 kt | 13 h 45 min | 11:42 pm EDT (03:42 UTC) | |
| 5,500 ft | 260° at 19 kt | −21 kt | 16 °C | 141 kt | 14 h 02 min | 11:59 pm EDT (03:59 UTC) |
| 7,500 ft | 250° at 18 kt | −20 kt | 11 °C | 140 kt | 14 h 08 min | 12:05 am EDT (04:05 UTC) |
| 9,500 ft | 250° at 18 kt | −19 kt | 8 °C | 139 kt | 14 h 14 min | 12:11 am EDT (04:11 UTC) |
| 11,500 ft | 250° at 21 kt | −22 kt | 4 °C | 142 kt | 13 h 56 min | 11:53 pm EDT (03:53 UTC) |
| 13,500 ft | 250° at 24 kt | −25 kt | 0 °C | 145 kt | 13 h 39 min | 11:36 pm EDT (03:36 UTC) |
| 15,500 ft | 250° at 27 kt | −28 kt | -4 °C | 148 kt | 13 h 22 min | 11:19 pm EDT (03:19 UTC) |
| 17,500 ft | 250° at 30 kt | −32 kt | -7 °C | 152 kt | 13 h 01 min | 10:58 pm EDT (02:58 UTC) |
| 18,000 ft FL180 | 250° at 30 kt | −32 kt | -8 °C | 152 kt | 13 h 01 min | 10:58 pm EDT (02:58 UTC) |
| 24,000 ft FL240 | 250° at 38 kt | −40 kt | -20 °C | 160 kt | 12 h 22 min | 10:19 pm EDT (02:19 UTC) |
| 30,000 ft FL300 | 250° at 53 kt | −57 kt | -31 °C | 177 kt | 11 h 11 min | 9:08 pm EDT (01:08 UTC) |
| 34,000 ft FL340 | 260° at 58 kt | −63 kt | -38 °C | 183 kt | 10 h 49 min | 8:46 pm EDT (00:46 UTC) |
| 39,000 ft FL390 | 260° at 53 kt | −57 kt | -48 °C | 177 kt | 11 h 11 min | 9:08 pm EDT (01:08 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ONT | used from 0 nm out; 25 nm from the line | 250/11 | 200/20 4° | 210/27 3° | 220/26 -4° | 240/32 -13° | 220/52 -21° | 220/67 -30° | 220/72 -37° | 220/65 -46° |
| BLH | used from 100 nm out; 74 nm from the line | 240/19 | 210/20 10° | 200/27 4° | 210/34 -2° | 220/59 -10° | 220/67 -20° | 220/75 -29° | 230/78 -38° | 220/90 -47° |
| LAS | used from 150 nm out; 75 nm from the line | 210/20 8° | 210/29 4° | 200/32 -3° | 200/51 -15° | 210/64 -21° | 220/70 -30° | 220/66 -38° | 220/55 -44° | |
| PRC | used from 200 nm out; 60 nm from the line | 200/37 6° | 200/35 0° | 220/60 -11° | 220/71 -20° | 220/88 -29° | 220/98 -35° | 220/94 -45° | ||
| FMN | used from 350 nm out; 111 nm from the line | 220/16 6° | 220/39 1° | 220/50 -10° | 230/67 -23° | 230/94 -29° | 230/102 -35° | 230/90 -46° | ||
| ALS | used from 550 nm out; 37 nm from the line | 240/35 3° | 230/54 -9° | 240/66 -19° | 230/85 -26° | 240/87 -34° | 240/70 -47° | |||
| PUB | used from 650 nm out; 54 nm from the line | 260/45 11° | 240/38 6° | 230/47 -8° | 230/51 -19° | 240/74 -29° | 240/82 -35° | 250/72 -48° | ||
| GCK | used from 750 nm out; 76 nm from the line | 240/40 22° | 240/40 14° | 240/38 7° | 230/39 -7° | 230/45 -20° | 250/73 -28° | 260/74 -36° | 260/64 -49° | |
| SLN | used from 950 nm out; 34 nm from the line | 230/49 | 240/41 22° | 230/26 15° | 220/21 7° | 240/38 -8° | 240/44 -21° | 260/77 -29° | 270/70 -36° | 270/63 -48° |
| MKC | used from 1050 nm out; 75 nm from the line | 240/49 | 240/21 20° | 220/19 13° | 230/21 6° | 260/26 -7° | 250/37 -19° | 270/66 -31° | 270/65 -38° | 280/60 -48° |
| COU | used from 1200 nm out; 32 nm from the line | 250/36 | 260/14 16° | 250/5 12° | 260/12 6° | 260/24 -7° | 260/35 -19° | 280/58 -31° | 280/62 -40° | 290/60 -49° |
| STL | used from 1300 nm out; 28 nm from the line | 250/26 | 240/21 15° | 240/22 11° | 250/23 6° | 270/28 -7° | 260/30 -19° | 280/52 -31° | 280/57 -40° | 300/57 -49° |
| SPI | used from 1350 nm out; 41 nm from the line | 260/28 | 250/22 15° | 250/14 9° | 260/20 6° | 280/27 -7° | 280/34 -19° | 280/48 -32° | 280/59 -41° | 300/60 -49° |
| IND | used from 1450 nm out; 63 nm from the line | 270/22 | 290/19 15° | 270/19 8° | 270/18 4° | 290/28 -7° | 280/35 -20° | 270/37 -34° | 300/51 -42° | 300/61 -51° |
| CVG | used from 1550 nm out; 37 nm from the line | 300/19 | 310/23 15° | 320/20 9° | 310/18 3° | 300/26 -6° | 290/36 -19° | 310/32 -34° | 310/53 -43° | 310/61 -51° |
| CMH | used from 1650 nm out; 42 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° |
| CRW | used from 1750 nm out; 62 nm from the line | 320/17 | 340/23 12° | 340/32 8° | 340/35 4° | 330/40 -7° | 340/45 -20° | 340/57 -34° | 340/64 -42° | 320/38 -50° |
| EKN | used from 1799 nm out; 26 nm from the line | 330/20 10° | 350/29 7° | 340/32 2° | 340/44 -8° | 350/50 -21° | 350/63 -35° | 340/69 -40° | 330/42 -50° | |
| RIC | used from 1949 nm out; 102 nm from the line | 350/34 | 340/27 12° | 340/36 8° | 330/31 3° | 310/32 -9° | 320/34 -21° | 300/37 -34° | 290/37 -39° | 290/42 -46° |
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 |
|---|---|---|---|---|---|---|---|
| ONT Ontario, CA | departure | no report just now | 944 ft | ||||
| SBD San Bernardino, CA | 20 nm out, 5 nm south of the line, tower | no report just now | 1,159 ft | ||||
| GCN Grand Canyon, AZ | 290 nm out, 18 nm north of the line, tower | no report just now | 6,608 ft | ||||
| FMN Farmington, NM | 490 nm out, 9 nm northwest of the line, tower | no report just now | 5,506 ft | ||||
| TAD Trinidad, CO | 670 nm out, 9 nm southeast of the line | no report just now | 5,761 ft | ||||
| GCK Garden City, KS | 850 nm out, 5 nm southeast of the line, tower | no report just now | 2,890 ft | ||||
| IXD Olathe, KS | 1130 nm out, 4 nm north of the line, tower | no report just now | 1,087 ft | ||||
| COU Columbia, MO | 1250 nm out, 12 nm southeast of the line, tower | no report just now | 889 ft | ||||
| BAK Columbus, IN | 1550 nm out, 4 nm south of the line, tower | no report just now | 656 ft | ||||
| PKB Parkersburg, WV | 1760 nm out, 2 nm west of the line, tower | no report just now | 858 ft | ||||
| CKB Clarksburg, WV | 1809 nm out, 4 nm east of the line, tower | no report just now | 1,223 ft | ||||
| BWI Baltimore, MD | destination | no report just now | 143 ft |
The highest airport on this list sits at 6,608 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BWI when you get there the forecast at the estimated arrival, 8:46 pm EDT (00:46 UTC)
BWI has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 19 nm from the route, at the departure end · security · ZLA
- 6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 1 nm from the route, 160 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
- 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 7 nm from the route, 1260 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
- 6/8029 Cincinnati, OH, Friday, October 9, 2026 through Monday, October 12, 2026 Local 13 nm from the route, 1610 nm along the route · a VIP movement · until 12 October · ZID
- 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
- 4/9383 WASHINGTON, DC., USA 6 nm from the route, at the destination end · security · ZDC
- 6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 6 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZDC
Daylight
Sunset at ONT 6:18 pm PDT (01:18 UTC), at BWI 6:32 pm EDT (22:32 UTC) (civil twilight ends 6:59 pm EDT (22:59 UTC)). At 120 knots the arrival at BWI is after sunset there (6:32 pm EDT (22:32 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: Ontario International, Baltimore/Washington International Thurgood Marshall.