Harrisburg International to Ontario International MDT → ONT
1,972 nautical miles (2,269 statute miles) west on a straight line, true course 272°, about 283° magnetic at the departure end (variation 11W). At 120 knots that is 19 h 20 min at the quickest height in today's winds (6,500 ft, a 18-knot headwind), arriving about 2:29 am PDT (09:29 UTC), after sunset at the destination. Right now MDT is VFR, wind from the north-northwest (330°) at 10 knots; ONT is marginal VFR, wind from the west (270°) at 9 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: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 10 to 179 nm out.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 60 to 60 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 70 to 339 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 707 to 1046 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 1225 to 1713 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 1285 to 1444 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1404 to 1792 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 1494 to 1733 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 1673 to 1763 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the last 80 nm of the route.
- AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 50 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 MDT.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent B763 at 2,000 ft, 19 nm south, 7:57 am EDT (11:57 UTC): a routine report with nothing remarked on. 876 nm along the route, 19 nm south of the line.
as filed, and in English
FOE UUA /OV 130003/TM 1157/FL020/TP B763/WV LLWS
- Report
- an urgent report filed through FOE
- Where
- wind from 130° at 3 knots
- Time
- 11:57 UTC
- Height
- at 2,000 ft
- Aircraft
- B763
- Wind
- low-level wind shear
- A321 at 19,000 ft, 24 nm northwest, 8:39 am EDT (12:39 UTC): moderate chop turbulence, remarks: zlawc. 1763 nm along the route, 24 nm northwest of the line.
as filed, and in English
CDC UA /OV PGS275017/TM 1239/FL190/TP A321/TB MOD CHOP/RM ZLAWC AWC-WEB
- Report
- a routine report filed through CDC
- Where
- 17 nm west (275°) of PGS
- Time
- 12:39 UTC
- Height
- at 19,000 ft
- Aircraft
- A321
- Turbulence
- moderate chop
- Remarks
- zlawc
- B737 at 13,000 ft, 21 nm north, 10:00 am EDT (14:00 UTC): moderate turbulence, remarks: dur desct from 13,000 ft to 11,000 ft. At the destination end, 21 nm north of the line.
as filed, and in English
ONT UA /OV 25N ONT/TM 1400/FL130/TP B737/TB MOD TURB/RM DUR DESCT 130-110
- Report
- a routine report filed through ONT
- Where
- 25N ont
- Time
- 14:00 UTC
- Height
- at 13,000 ft
- Aircraft
- B737
- Turbulence
- moderate turbulence
- Remarks
- dur desct from 13,000 ft to 11,000 ft
- B737 at 8,500 ft, 42 nm west, 9:58 am EDT (13:58 UTC): moderate turbulence above 8,500 ft. At the destination end, 42 nm west of the line.
as filed, and in English
LAX UA /OV 8 SW OF LAX/TM 1358/FL085/TP B737/TB MOD TURB 085
- Report
- a routine report filed through LAX
- Where
- 8 southwest of lax
- Time
- 13:58 UTC
- Height
- at 8,500 ft
- Aircraft
- B737
- Turbulence
- moderate turbulence at 8,500 ft
- A21N at 8,000 ft, 42 nm west, 9:30 am EDT (13:30 UTC): moderate turbulence. At the destination end, 42 nm west of the line.
as filed, and in English
LAX UA /OV LAX/TM 1330/FL080/TP A21N/TB MODERATE
- Report
- a routine report filed through LAX
- Where
- over LAX
- Time
- 13:30 UTC
- Height
- at 8,000 ft
- Aircraft
- A21N
- Turbulence
- moderate
- CRJ7 at 2,500 ft, 0 nm northeast, 9:24 am EDT (13:24 UTC): scattered clouds above 2,500 ft. At the departure end, 0 nm northeast of the line.
as filed, and in English
MDT UA /OV MDT/TM 1324/FL025/TP CRJ7/SK SCT025
- Report
- a routine report filed through MDT
- Where
- over MDT
- Time
- 13:24 UTC
- Height
- at 2,500 ft
- Aircraft
- CRJ7
- Sky
- scattered clouds from 2,500 ft
- C68A at 2,000 ft, 38 nm east, 8:34 am EDT (12:34 UTC): a broken layer above 2,000 ft, remarks: during the climb runway 36. At the departure end, 38 nm east of the line.
as filed, and in English
RDG UA /OV 2 N RDG/TM 1234/FL020/TP C68A/SK BKN020/RM DURC RWY 36
- Report
- a routine report filed through RDG
- Where
- 2 north rdg
- Time
- 12:34 UTC
- Height
- at 2,000 ft
- Aircraft
- C68A
- Sky
- a broken layer from 2,000 ft
- Remarks
- during the climb runway 36
- PC12 at 2,500 ft, 17 nm south, 8:32 am EDT (12:32 UTC): a routine report with nothing remarked on. At the departure end, 17 nm south of the line.
as filed, and in English
MDT UA /OV THV/TM 1232/FL025/TP PC12/SK BASES025
- Report
- a routine report filed through MDT
- Where
- over THV
- Time
- 12:32 UTC
- Height
- at 2,500 ft
- Aircraft
- PC12
- Sky
- BASES025
- P28A at 2,000 ft, 38 nm east, 8:18 am EDT (12:18 UTC): a broken layer above 2,000 ft. At the departure end, 38 nm east of the line.
as filed, and in English
RDG UA /OV 1 NW RDG/TM 1218/FL020/TP P28A/SK BKN020
- Report
- a routine report filed through RDG
- Where
- 1 northwest rdg
- Time
- 12:18 UTC
- Height
- at 2,000 ft
- Aircraft
- P28A
- Sky
- a broken layer from 2,000 ft
- SF50 at 2,500 ft, 17 nm south, 8:11 am EDT (12:11 UTC): a routine report with nothing remarked on. At the departure end, 17 nm south of the line.
as filed, and in English
MDT UA /OV THV/TM 1211/FL025/TP SF50/SK BASES025
- Report
- a routine report filed through MDT
- Where
- over THV
- Time
- 12:11 UTC
- Height
- at 2,500 ft
- Aircraft
- SF50
- Sky
- BASES025
- SR22 at 3,100 ft, 4 nm west, 7:40 am EDT (11:40 UTC): a routine report with nothing remarked on. At the departure end, 4 nm west of the line.
as filed, and in English
MDT UA /OV CXY/TM 1140/FL031/TP SR22/SK SCT016 BASES028-TOPS031
- Report
- a routine report filed through MDT
- Where
- over CXY
- Time
- 11:40 UTC
- Height
- at 3,100 ft
- Aircraft
- SR22
- Sky
- SCT016 BASES028-TOPS031
- PC12 at 2,400 ft, 39 nm northeast, 7:26 am EDT (11:26 UTC): overcast above 2,400 ft, remarks: final runway 18. At the departure end, 39 nm northeast of the line.
as filed, and in English
RDG UA /OV 5 N RDG/TM 1126/FL024/TP PC12/SK OVC024/RM FINAL RWY 18
- Report
- a routine report filed through RDG
- Where
- 5 north rdg
- Time
- 11:26 UTC
- Height
- at 2,400 ft
- Aircraft
- PC12
- Sky
- overcast from 2,400 ft
- Remarks
- final runway 18
- B737 at 1,900 ft, 0 nm northeast, 7:23 am EDT (11:23 UTC): a routine report with nothing remarked on. At the departure end, 0 nm northeast of the line.
as filed, and in English
MDT UA /OV MDT/TM 1123/FL019/TP B737/SK BASES019
- Report
- a routine report filed through MDT
- Where
- over MDT
- Time
- 11:23 UTC
- Height
- at 1,900 ft
- Aircraft
- B737
- Sky
- BASES019
- C170 at 1,500 ft, 48 nm south, 9:55 am EDT (13:55 UTC): overcast above 2,300 ft. At the departure end, 48 nm south of the line.
as filed, and in English
FDK UA /OV FDK/TM 1355/FL015/TP C170/SK OVC023
- Report
- a routine report filed through FDK
- Where
- over FDK
- Time
- 13:55 UTC
- Height
- at 1,500 ft
- Aircraft
- C170
- Sky
- overcast from 2,300 ft
16 more routine reports are on the map.
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 westbound cruising heights for this course (VFR: even 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 (PSB, AGC, CMH, FWA, IND, SPI, BRL, COU, MKC, SLN, GCK, PUB, ALS, FMN, BCE, PRC, LAS, BLH, ONT). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 250° at 20 kt | +21 kt | 16 °C | 99 kt | 19 h 55 min | 3:04 am PDT (10:04 UTC) |
| 6,500 ft | 260° at 16 kt | +18 kt | 15 °C | 102 kt | 19 h 20 min | 2:29 am PDT (09:29 UTC) |
| 8,500 ft | 250° at 18 kt | +19 kt | 10 °C | 101 kt | 19 h 31 min | 2:40 am PDT (09:40 UTC) |
| 10,500 ft | 240° at 20 kt | +21 kt | 6 °C | 99 kt | 19 h 55 min | 3:04 am PDT (10:04 UTC) |
| 12,500 ft | 240° at 22 kt | +23 kt | 2 °C | 97 kt | 20 h 20 min | 3:29 am PDT (10:29 UTC) |
| 14,500 ft | 240° at 25 kt | +26 kt | -2 °C | 94 kt | 20 h 59 min | 4:08 am PDT (11:08 UTC) |
| 16,500 ft | 250° at 28 kt | +30 kt | -6 °C | 90 kt | 21 h 55 min | 5:04 am PDT (12:04 UTC) |
| 18,000 ft FL180 | 250° at 30 kt | +32 kt | -9 °C | 88 kt | 22 h 25 min | 5:34 am PDT (12:34 UTC) |
| 24,000 ft FL240 | 250° at 39 kt | +41 kt | -20 °C | 79 kt | 24 h 58 min | 8:07 am PDT (15:07 UTC) |
| 30,000 ft FL300 | 250° at 53 kt | +57 kt | -31 °C | 63 kt | 31 h 18 min | 2:27 pm PDT (21:27 UTC) |
| 34,000 ft FL340 | 260° at 58 kt | +63 kt | -38 °C | 57 kt | 34 h 36 min | 5:45 pm PDT (00:45 UTC) |
| 39,000 ft FL390 | 260° at 52 kt | +57 kt | -48 °C | 63 kt | 31 h 18 min | 2:27 pm PDT (21:27 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| PSB | used from 0 nm out; 54 nm from the line | 020/21 12° | 360/28 7° | 360/29 1° | 350/33 -10° | 350/42 -22° | 350/49 -37° | 340/63 -43° | 350/39 -52° | |
| AGC | used from 100 nm out; 22 nm from the line | 340/11 | 350/12 11° | 360/25 7° | 340/30 2° | 340/41 -8° | 340/44 -21° | 350/59 -36° | 340/68 -42° | 340/50 -51° |
| CMH | used from 199 nm out; 59 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° |
| FWA | used from 349 nm out; 50 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° |
| IND | used from 398 nm out; 28 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° |
| SPI | used from 498 nm out; 71 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° |
| BRL | used from 647 nm out; 63 nm from the line | 250/32 | 250/19 17° | 260/15 11° | 270/16 3° | 290/23 -7° | 260/42 -20° | 270/52 -34° | 280/63 -39° | 290/64 -48° |
| COU | used from 697 nm out; 51 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° |
| MKC | used from 747 nm out; 56 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° |
| SLN | used from 896 nm out; 49 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° |
| GCK | used from 1046 nm out; 60 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° | |
| PUB | used from 1195 nm out; 76 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° | ||
| ALS | used from 1344 nm out; 4 nm from the line | 240/35 3° | 230/54 -9° | 240/66 -19° | 230/85 -26° | 240/87 -34° | 240/70 -47° | |||
| FMN | used from 1444 nm out; 19 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° | ||
| BCE | used from 1593 nm out; 111 nm from the line | 200/32 -2° | 210/57 -15° | 220/71 -22° | 220/69 -30° | 220/64 -38° | 220/67 -44° | |||
| PRC | used from 1643 nm out; 79 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° | ||
| LAS | used from 1792 nm out; 67 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° | |
| BLH | used from 1842 nm out; 81 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° |
| ONT | used from 1892 nm out; 55 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° |
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 |
|---|---|---|---|---|---|---|---|
| MDT Harrisburg, PA | departure | VFR Sky: scattered clouds at 2,000 feet | from the north-northwest (330°) at 10 knots | 10+ mi | none | 310 ft | 9:56 am EDT (13:56 UTC) |
| LBE Latrobe, PA | 119 nm out, 2 nm northwest of the line, tower | IFR Sky: overcast at 600 feet Weather: mist | from the west-southwest (240°) at 8 knots | 2 mi | 600 ft | 1,198 ft | 13:47 UTC |
| OSU Columbus, OH | 289 nm out, 9 nm south of the line, tower | IFR Sky: overcast at 700 feet | from the west-southwest (240°) at 6 knots | 7 mi | 700 ft | 905 ft | 13:53 UTC |
| CMI Champaign/Urbana, IL | 528 nm out, 2 nm north of the line, tower | VFR | from the southwest (230°) at 8 knots | 10+ mi | none | 754 ft | 13:53 UTC |
| SPI Springfield, IL | 597 nm out, 5 nm southeast of the line, tower | VFR | from the south-southwest (200°) at 7 knots | 10+ mi | none | 597 ft | 13:52 UTC |
| MHK Manhattan, KS | 916 nm out, 4 nm west of the line, tower | VFR | from the south-southwest (210°) at 11 knots, gusting to 21 | 10+ mi | none | 1,066 ft | 13:52 UTC |
| TQK Scott City, KS | 1125 nm out, 4 nm northeast of the line | VFR | from the southwest (230°) at 11 knots | 10+ mi | none | 2,968 ft | 13:55 UTC |
| ALS Alamosa, CO | 1364 nm out, 1 nm west of the line | VFR | calm | 10+ mi | none | 7,539 ft | 13:52 UTC |
| FMN Farmington, NM | 1484 nm out, 8 nm south of the line, tower | VFR Sky: scattered clouds at 6,000 feet, overcast at 8,500 feet | calm | 10+ mi | 8,500 ft | 5,506 ft | 13:53 UTC |
| GCN Grand Canyon, AZ | 1683 nm out, 9 nm north of the line, tower | IFR Sky: a broken layer at 600 feet, overcast at 1,100 feet Weather: mist | from the south-southwest (210°) at 11 knots, gusting to 17 | 4 mi | 600 ft | 6,608 ft | 13:54 UTC |
| SBD San Bernardino, CA | 1952 nm out, 5 nm south of the line, tower | IFR Sky: a broken layer at 700 feet, overcast at 1,400 feet Weather: rain | from the southwest (220°) at 3 knots | 3 mi | 700 ft | 1,159 ft | 14:00 UTC |
| ONT Ontario, CA | destination | marginal VFR Sky: a few clouds at 700 feet, a broken layer at 2,700 feet, overcast at 7,000 feet | from the west (270°) at 9 knots | 9 mi | 2,700 ft | 944 ft | 6:53 am PDT (13:53 UTC) |
The highest airport on this list sits at 7,539 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At ONT when you get there the forecast at the estimated arrival, 2:29 am PDT (09:29 UTC)
Wind light and variable, visibility more than 6 miles, scattered clouds at 3,000 feet, scattered clouds at 4,000 feet VFR
The whole forecast for ONT
- From Mon 5:00 am PDT (12:00 UTC): wind light and variable, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 3,000 feet
- At times between Mon 5:00 am PDT (12:00 UTC) and 9:00 am PDT (16:00 UTC): visibility 5 miles, mist, a broken layer at 1,800 feet
- From Mon 9:00 am PDT (16:00 UTC): wind from the southwest at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
- From Mon 1:00 pm PDT (20:00 UTC): wind from the west-southwest at 11 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
- From Mon 8:00 pm PDT (03:00 UTC): wind from the west at 8 knots, visibility more than 6 miles, scattered clouds at 3,000 feet, a broken layer at 4,000 feet
- From Mon 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 3,000 feet, scattered clouds at 4,000 feet
The forecast for MDT, the departure
- From Mon 9:00 am EDT (13:00 UTC): wind from the north-northwest at 10 knots, visibility more than 6 miles, a broken layer at 2,500 feet, overcast at 4,000 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the northwest at 8 knots, visibility more than 6 miles, a broken layer at 4,000 feet
- From Mon 5:00 pm EDT (21:00 UTC): wind from the west-northwest at 4 knots, visibility more than 6 miles, a broken layer at 10,000 feet
- From Tue 5:00 am EDT (09:00 UTC): wind calm, visibility more than 6 miles, scattered clouds at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 22 nm from the route, 179 nm along the route · a VIP movement · today · ZOB
- 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 22 nm from the route, 179 nm along the route · a VIP movement · today · ZOB
- 6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local on the route, 1802 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
- 4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 19 nm from the route, at the destination end · security · ZLA
Daylight
Sunset at MDT 6:32 pm EDT (22:32 UTC), at ONT 6:18 pm PDT (01:18 UTC) (civil twilight ends 6:44 pm PDT (01:44 UTC)). At 120 knots the arrival at ONT is before sunrise there (6:53 am PDT (13:53 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: Harrisburg International, Ontario International.
