Dallas-Fort Worth International to St. Louis Lambert International DFW → STL
478 nautical miles (550 statute miles) northeast on a straight line, true course 041°, about 037° magnetic at the departure end (variation 4E). At 120 knots that is 3 h 15 min at the quickest height in today's winds (3,500 ft, a 27-knot tailwind), arriving about 4:49 am CDT (09:49 UTC), after sunset at the destination. Right now DFW is VFR, wind from the south (180°) at 12 knots; STL is VFR, wind from the south-southwest (210°) at 7 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: 4,634 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). Near the route, 189 nm along 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 DFW.
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 4 forecast points nearest it (DAL, FSM, SGF, STL). 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 | 220° at 26 kt | −27 kt | 147 kt | 3 h 15 min | 4:49 am CDT (09:49 UTC) | |
| 5,500 ft | 230° at 24 kt | −24 kt | 144 kt | 3 h 19 min | 4:53 am CDT (09:53 UTC) | |
| 7,500 ft | 240° at 22 kt | −21 kt | 14 °C | 141 kt | 3 h 23 min | 4:57 am CDT (09:57 UTC) |
| 9,500 ft | 250° at 19 kt | −17 kt | 11 °C | 137 kt | 3 h 29 min | 5:03 am CDT (10:03 UTC) |
| 11,500 ft | 250° at 17 kt | −16 kt | 8 °C | 136 kt | 3 h 31 min | 5:05 am CDT (10:05 UTC) |
| 13,500 ft | 250° at 18 kt | −16 kt | 4 °C | 136 kt | 3 h 31 min | 5:05 am CDT (10:05 UTC) |
| 15,500 ft | 250° at 18 kt | −17 kt | 0 °C | 137 kt | 3 h 29 min | 5:03 am CDT (10:03 UTC) |
| 17,500 ft | 250° at 19 kt | −17 kt | -5 °C | 137 kt | 3 h 29 min | 5:03 am CDT (10:03 UTC) |
| 18,000 ft FL180 | 250° at 20 kt | −18 kt | -6 °C | 138 kt | 3 h 28 min | 5:02 am CDT (10:02 UTC) |
| 24,000 ft FL240 | 260° at 25 kt | −21 kt | -17 °C | 141 kt | 3 h 23 min | 4:57 am CDT (09:57 UTC) |
| 30,000 ft FL300 | 280° at 39 kt | −21 kt | -31 °C | 141 kt | 3 h 23 min | 4:57 am CDT (09:57 UTC) |
| 34,000 ft FL340 | 280° at 44 kt | −22 kt | -40 °C | 142 kt | 3 h 22 min | 4:56 am CDT (09:56 UTC) |
| 39,000 ft FL390 | 290° at 43 kt | −15 kt | -51 °C | 135 kt | 3 h 32 min | 5:06 am CDT (10:06 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DAL | used from 0 nm out; 23 nm from the line | 190/29 | 220/23 17° | 220/17 13° | 250/18 8° | 230/18 -5° | 240/18 -15° | 270/34 -29° | 280/33 -39° | 300/36 -51° |
| FSM | used from 100 nm out; 73 nm from the line | 210/27 | 250/23 16° | 250/20 13° | 240/17 8° | 250/18 -6° | 260/31 -16° | 280/42 -30° | 280/44 -40° | 290/38 -51° |
| SGF | used from 249 nm out; 57 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° |
| STL | used from 398 nm out; 55 nm from the line | 250/24 | 250/24 16° | 260/23 9° | 270/16 6° | 260/25 -6° | 270/29 -19° | 290/34 -33° | 290/48 -41° | 290/54 -51° |
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 |
|---|---|---|---|---|---|---|---|
| DFW Dallas-Fort Worth, TX | departure | VFR | from the south (180°) at 12 knots | 10+ mi | none | 606 ft | 12:53 am CDT (05:53 UTC) |
| TKI Dallas, TX | 30 nm out, 7 nm southeast of the line, tower | VFR | from the south (180°) at 9 knots | 10+ mi | none | 588 ft | 05:53 UTC |
| GYI Sherman/Denison, TX | 50 nm out, 18 nm northwest of the line, tower | VFR | from the south-southeast (150°) at 9 knots | 10+ mi | none | 749 ft | 06:15 UTC |
| HHW Hugo, OK | 100 nm out, 11 nm southeast of the line | VFR | from the south (170°) at 6 knots | 10+ mi | none | 572 ft | 06:10 UTC |
| RKR Poteau, OK | 179 nm out, 7 nm south of the line | VFR | calm | 10+ mi | none | 450 ft | 06:15 UTC |
| FSM Fort Smith, AR | 199 nm out, 3 nm south of the line, tower | VFR | calm | 10+ mi | none | 469 ft | 05:53 UTC |
| HRO Harrison, AR | 279 nm out, 8 nm southeast of the line | VFR | from the southeast (140°) at 4 knots | 10+ mi | none | 1,364 ft | 05:53 UTC |
| BBG Branson, MO | 289 nm out, 5 nm northwest of the line, tower | VFR | calm | 10+ mi | none | 1,302 ft | 06:15 UTC |
| TBN Fort Leonard Wood, MO | 378 nm out, 18 nm northwest of the line, tower | VFR | from the south (190°) at 4 knots | 10+ mi | none | 1,159 ft | 05:55 UTC |
| UUV Sullivan, MO | 428 nm out, 5 nm northwest of the line | VFR | from the south-southwest (210°) at 4 knots | 10+ mi | none | 933 ft | 06:15 UTC |
| FYG Washington, MO | 448 nm out, 14 nm northwest of the line | marginal VFR Weather: mist | calm | 3 mi | none | 487 ft | 05:55 UTC |
| STL St Louis, MO | destination | VFR | from the south-southwest (210°) at 7 knots | 10+ mi | none | 617 ft | 12:51 am CDT (05:51 UTC) |
The highest airport on this list sits at 1,364 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At STL when you get there the forecast at the estimated arrival, 4:49 am CDT (09:49 UTC)
Wind from the south-southwest at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR
The whole forecast for STL
- From Mon 1:00 am CDT (06:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 6:00 pm CDT (23:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, a few clouds at 25,000 feet
The forecast for DFW, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, clear skies
- From Mon 10:00 am CDT (15:00 UTC): wind from the south at 12 knots, gusting to 23, visibility more than 6 miles, a few clouds at 20,000 feet
- From Mon 7:00 pm CDT (00:00 UTC): wind from the south at 10 knots, visibility more than 6 miles, a few clouds at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8646 Arlington, TX, Thursday, October 15, 2026 through Friday, October 16, 2026 UTC 8 nm from the route, at the departure end · drones kept away from a public gathering · starts Thursday 15 October · ZFW
- 9/2934 DALLAS, TX 8 nm from the route, at the departure end · a VIP movement · ZFW
Daylight
Sunset at DFW 6:58 pm CDT (23:58 UTC), at STL 6:27 pm CDT (23:27 UTC) (civil twilight ends 6:54 pm CDT (23:54 UTC)). At 120 knots the arrival at STL is before sunrise there (7:07 am CDT (12:07 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: Dallas-Fort Worth International, St. Louis Lambert International.