Okc Will Rogers International to South Bend International OKC → SBN
651 nautical miles (749 statute miles) northeast on a straight line, true course 051°, about 047° magnetic at the departure end (variation 4E). At 120 knots that is 4 h 17 min at the quickest height in today's winds (34,000 ft, a 32-knot tailwind), arriving about 7:17 am EDT (11:17 UTC), after sunset at the destination. Right now OKC is VFR, wind from the south (170°) at 13 knots; SBN is VFR, wind calm. 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: 5 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 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 first 286 nm of 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 49 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 OKC.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B38M at 29,000 ft, 12 nm southeast, 11:52 pm CDT (04:52 UTC): no turbulence from 23,000 ft to 29,000 ft. 542 nm along the route, 12 nm southeast of the line.
as filed, and in English
TIP UA /OV RBS/TM 0452/FL290/TP B38M/TB NEG 230-290
- Report
- a routine report filed through TIP
- Where
- over RBS
- Time
- 04:52 UTC
- Height
- at 29,000 ft
- Aircraft
- B38M
- Turbulence
- no from 23,000 ft to 29,000 ft
- LJ45 at 10,000 ft, 46 nm southeast, 11:31 pm CDT (04:31 UTC): no turbulence, clear, remarks: ground fog at fwa FV10SM on final runway 14. At the destination end, 46 nm southeast of the line.
as filed, and in English
FWA UA /OV OLK/TM 0431/FL100/TP LJ45/SK CLR/TB SMOOTH/RM GROUND FOG AT FWA. FV10SM ON FINAL RY 14
- Report
- a routine report filed through FWA
- Where
- over OLK
- Time
- 04:31 UTC
- Height
- at 10,000 ft
- Aircraft
- LJ45
- Sky
- clear
- Turbulence
- smooth
- Remarks
- ground fog at fwa FV10SM on final runway 14
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 7 forecast points nearest it (OKC, TUL, SGF, COU, SPI, JOT, FWA). 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 | 230° at 28 kt | −28 kt | 148 kt | 4 h 24 min | 7:24 am EDT (11:24 UTC) | |
| 5,500 ft | 240° at 26 kt | −26 kt | 146 kt | 4 h 28 min | 7:28 am EDT (11:28 UTC) | |
| 7,500 ft | 250° at 22 kt | −21 kt | 14 °C | 141 kt | 4 h 37 min | 7:37 am EDT (11:37 UTC) |
| 9,500 ft | 260° at 18 kt | −17 kt | 11 °C | 137 kt | 4 h 45 min | 7:45 am EDT (11:45 UTC) |
| 11,500 ft | 260° at 14 kt | −13 kt | 7 °C | 133 kt | 4 h 54 min | 7:54 am EDT (11:54 UTC) |
| 13,500 ft | 260° at 15 kt | −14 kt | 3 °C | 134 kt | 4 h 51 min | 7:51 am EDT (11:51 UTC) |
| 15,500 ft | 260° at 18 kt | −16 kt | -1 °C | 136 kt | 4 h 47 min | 7:47 am EDT (11:47 UTC) |
| 17,500 ft | 260° at 21 kt | −19 kt | -5 °C | 139 kt | 4 h 41 min | 7:41 am EDT (11:41 UTC) |
| 18,000 ft FL180 | 260° at 21 kt | −19 kt | -6 °C | 139 kt | 4 h 41 min | 7:41 am EDT (11:41 UTC) |
| 24,000 ft FL240 | 260° at 27 kt | −24 kt | -18 °C | 144 kt | 4 h 31 min | 7:31 am EDT (11:31 UTC) |
| 30,000 ft FL300 | 280° at 36 kt | −27 kt | -32 °C | 147 kt | 4 h 26 min | 7:26 am EDT (11:26 UTC) |
| 34,000 ft FL340 | 280° at 48 kt | −32 kt | -41 °C | 152 kt | 4 h 17 min | 7:17 am EDT (11:17 UTC) |
| 39,000 ft FL390 | 290° at 51 kt | −27 kt | -51 °C | 147 kt | 4 h 26 min | 7:26 am EDT (11:26 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 | 3,000 | 6,000 | 9,000 | 12,000 | 18,000 | 24,000 | 30,000 | 34,000 | 39,000 |
|---|---|---|---|---|---|---|---|---|---|---|
| OKC | used from 0 nm out; 25 nm from the line | 200/44 | 230/32 18° | 240/13 15° | 240/10 9° | 240/20 -5° | 250/27 -16° | 260/47 -28° | 270/48 -39° | 270/45 -50° |
| TUL | used from 49 nm out; 26 nm from the line | 210/37 | 240/29 17° | 260/15 14° | 260/11 7° | 240/22 -6° | 250/29 -16° | 270/45 -29° | 270/47 -40° | 280/44 -50° |
| SGF | used from 148 nm out; 68 nm from the line | 230/33 | 230/28 15° | 250/20 13° | 240/18 7° | 250/20 -6° | 250/24 -17° | 280/42 -31° | 280/49 -40° | 290/46 -51° |
| COU | used from 296 nm out; 11 nm from the line | 230/31 | 230/30 15° | 260/16 11° | 270/14 6° | 260/24 -6° | 270/27 -18° | 270/37 -32° | 280/49 -41° | 290/56 -51° |
| SPI | used from 394 nm out; 44 nm from the line | 220/21 | 250/23 16° | 260/27 9° | 270/14 6° | 270/23 -7° | 270/31 -19° | 270/28 -33° | 290/48 -42° | 300/55 -52° |
| JOT | used from 542 nm out; 36 nm from the line | 250/23 | 270/22 15° | 250/16 10° | 240/9 4° | 280/22 -7° | 280/29 -19° | 300/29 -34° | 290/50 -43° | 300/64 -52° |
| FWA | used from 641 nm out; 69 nm from the line | 300/17 | 320/20 16° | 330/20 10° | 340/15 3° | 310/27 -8° | 320/37 -20° | 330/52 -36° | 330/65 -43° | 330/60 -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 |
|---|---|---|---|---|---|---|---|
| OKC Oklahoma City, OK | departure | VFR | from the south (170°) at 13 knots | 10+ mi | none | 1,295 ft | 1:52 am CDT (06:52 UTC) |
| SWO Stillwater, OK | 49 nm out, 20 nm northwest of the line, tower | VFR | from the south (170°) at 11 knots | 10+ mi | none | 1,000 ft | 06:53 UTC |
| TUL Tulsa, OK | 99 nm out, 14 nm southeast of the line, tower | VFR | from the south (170°) at 13 knots | 10+ mi | none | 677 ft | 06:53 UTC |
| JLN Joplin, MO | 187 nm out, 10 nm south of the line, tower | VFR | from the south (180°) at 11 knots | 10+ mi | none | 977 ft | 06:53 UTC |
| LLU Lamar, MO | 207 nm out, 5 nm southwest of the line | no report just now | 1,009 ft | ||||
| JEF Jefferson City, MO | 325 nm out, 6 nm southeast of the line, tower | VFR | from the southeast (140°) at 3 knots | 10+ mi | none | 549 ft | 06:53 UTC |
| FTT Fulton, MO | 335 nm out, 4 nm northeast of the line | no report just now | 886 ft | ||||
| IJX Jacksonville, IL | 434 nm out, 4 nm northeast of the line | VFR | from the south (190°) at 7 knots | 10+ mi | none | 623 ft | 06:35 UTC |
| BMI Bloomington/Normal, IL | 513 nm out, 2 nm northwest of the line, tower | VFR | from the south (190°) at 6 knots | 10+ mi | none | 871 ft | 06:56 UTC |
| IKK Kankakee, IL | 572 nm out, 5 nm northwest of the line | VFR | calm | 10+ mi | none | 629 ft | 06:35 UTC |
| GYY Gary/Chicago, IN | 601 nm out, 22 nm north of the line, tower | VFR | from the south (190°) at 6 knots | 10+ mi | none | 596 ft | 06:35 UTC |
| SBN South Bend, IN | destination | VFR | calm | 10+ mi | none | 798 ft | 2:54 am EDT (06:54 UTC) |
The highest airport on this list sits at 1,295 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SBN when you get there the forecast at the estimated arrival, 7:17 am EDT (11:17 UTC)
Wind from the south at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR
The whole forecast for SBN
- From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
- At times between Mon 2:00 am EDT (06:00 UTC) and 5:00 am EDT (09:00 UTC): visibility 2 miles, mist
- From Mon 6:00 am EDT (10:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the south-southwest at 12 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the south-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 10,000 feet
The forecast for OKC, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, low-level wind shear, clear skies
- From Mon 9:00 am CDT (14:00 UTC): wind from the south-southwest at 17 knots, gusting to 27, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm CDT (01:00 UTC): wind from the south at 12 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 19 nm from the route, 345 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
Daylight
Sunset at OKC 6:59 pm CDT (23:59 UTC), at SBN 7:09 pm EDT (23:09 UTC) (civil twilight ends 7:36 pm EDT (23:36 UTC)). At 120 knots the arrival at SBN is before sunrise there (7:53 am EDT (11:53 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: Okc Will Rogers International, South Bend International.