Bozeman Yellowstone International to Dallas Love Field BZN → DAL
1,019 nautical miles (1,172 statute miles) southeast on a straight line, true course 135°, about 122° magnetic at the departure end (variation 13E). At 120 knots that is 7 h 11 min at the quickest height in today's winds (39,000 ft, a 22-knot tailwind), arriving about 3:17 am CDT (08:17 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: 36 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: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 190 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 519 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 320 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 20 to 439 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 50 to 300 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 BZN.
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 20:00–03:00 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 10 forecast points nearest it (DLN, BIL, LND, BFF, DEN, GLD, GCK, GAG, SPS, DAL). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 180° at 24 kt | +19 kt | 20 °C | 101 kt | 10 h 05 min | 6:11 am CDT (11:11 UTC) |
| 7,500 ft | 190° at 24 kt | +16 kt | 13 °C | 104 kt | 9 h 48 min | 5:54 am CDT (10:54 UTC) |
| 9,500 ft | 200° at 25 kt | +11 kt | 11 °C | 109 kt | 9 h 21 min | 5:27 am CDT (10:27 UTC) |
| 11,500 ft | 210° at 27 kt | +9 kt | 7 °C | 111 kt | 9 h 11 min | 5:17 am CDT (10:17 UTC) |
| 13,500 ft | 220° at 29 kt | +7 kt | 3 °C | 113 kt | 9 h 01 min | 5:07 am CDT (10:07 UTC) |
| 15,500 ft | 220° at 31 kt | +4 kt | -2 °C | 116 kt | 8 h 47 min | 4:53 am CDT (09:53 UTC) |
| 17,500 ft | 230° at 33 kt | +2 kt | -6 °C | 118 kt | 8 h 38 min | 4:44 am CDT (09:44 UTC) |
| 18,000 ft FL180 | 230° at 34 kt | +2 kt | -7 °C | 118 kt | 8 h 38 min | 4:44 am CDT (09:44 UTC) |
| 24,000 ft FL240 | 220° at 38 kt | +4 kt | -19 °C | 116 kt | 8 h 47 min | 4:53 am CDT (09:53 UTC) |
| 30,000 ft FL300 | 230° at 45 kt | 0 | -32 °C | 120 kt | 8 h 30 min | 4:36 am CDT (09:36 UTC) |
| 34,000 ft FL340 | 240° at 54 kt | −14 kt | -39 °C | 134 kt | 7 h 36 min | 3:42 am CDT (08:42 UTC) |
| 39,000 ft FL390 | 250° at 55 kt | −22 kt | -48 °C | 142 kt | 7 h 11 min | 3:17 am CDT (08:17 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DLN | used from 0 nm out; 78 nm from the line | 080/10 -3° | 180/8 -3° | 180/23 -14° | 200/58 -22° | 200/80 -36° | 220/85 -41° | 230/81 -45° | ||
| BIL | used from 50 nm out; 79 nm from the line | 080/24 | 130/14 -1° | 180/33 0° | 210/43 -10° | 220/58 -21° | 200/55 -36° | 220/75 -44° | 240/83 -48° | |
| LND | used from 100 nm out; 90 nm from the line | 180/33 10° | 190/50 3° | 210/59 -9° | 200/50 -21° | 190/41 -34° | 230/55 -39° | 240/65 -47° | ||
| BFF | used from 300 nm out; 107 nm from the line | 120/24 | 180/31 13° | 210/26 7° | 230/25 -7° | 240/41 -20° | 230/52 -36° | 250/56 -41° | 260/57 -45° | |
| DEN | used from 399 nm out; 45 nm from the line | 190/31 16° | 210/32 7° | 240/41 -8° | 230/47 -21° | 240/56 -32° | 250/65 -37° | 250/61 -47° | ||
| GLD | used from 499 nm out; 66 nm from the line | 190/29 | 200/30 15° | 240/23 8° | 250/39 -7° | 230/39 -19° | 230/57 -31° | 240/67 -39° | 250/62 -49° | |
| GCK | used from 599 nm out; 50 nm from the line | 200/35 21° | 220/34 14° | 240/30 8° | 240/27 -6° | 240/31 -17° | 240/53 -30° | 250/55 -39° | 250/60 -50° | |
| GAG | used from 699 nm out; 43 nm from the line | 190/34 19° | 240/27 14° | 240/26 8° | 240/24 -6° | 240/29 -16° | 250/50 -28° | 250/50 -39° | 260/46 -50° | |
| SPS | used from 849 nm out; 48 nm from the line | 180/26 | 200/25 16° | 220/19 13° | 220/20 9° | 230/26 -5° | 230/34 -15° | 260/37 -28° | 270/42 -39° | 280/40 -51° |
| DAL | used from 949 nm out; 45 nm from the line | 180/21 | 190/24 15° | 230/20 12° | 220/23 8° | 240/22 -5° | 230/18 -15° | 280/33 -29° | 280/36 -39° | 300/33 -52° |
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 |
|---|---|---|---|---|---|---|---|
| BZN Bozeman, MT | departure | no report just now | 4,473 ft | ||||
| LVM Livingston, MT | 20 nm out, 18 nm northeast of the line | no report just now | 4,659 ft | ||||
| HSG Thermopolis, WY | 170 nm out, 3 nm south of the line | no report just now | 4,891 ft | ||||
| CYS Cheyenne, WY | 389 nm out, 12 nm northeast of the line, tower | no report just now | 6,159 ft | ||||
| FNL Fort Collins/Loveland, CO | 419 nm out, 23 nm southwest of the line, tower | no report just now | 5,020 ft | ||||
| ULS Ulysses, KS | 659 nm out, 3 nm west of the line | no report just now | 3,071 ft | ||||
| GAG Gage, OK | 769 nm out, 10 nm northeast of the line | no report just now | 2,223 ft | ||||
| LAW Lawton, OK | 889 nm out, 1 nm southwest of the line, tower | no report just now | 1,110 ft | ||||
| DTO Denton, TX | 989 nm out, 3 nm south of the line, tower | no report just now | 642 ft | ||||
| DAL Dallas, TX | destination | no report just now | 486 ft |
The highest airport on this list sits at 6,159 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At DAL when you get there the forecast at the estimated arrival, 3:17 am CDT (08:17 UTC)
DAL has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 9/2934 DALLAS, TX 2 nm from the route, at the destination end · a VIP movement · ZFW
- 6/8646 Arlington, TX, Thursday, October 15, 2026 through Friday, October 16, 2026 UTC 13 nm from the route, at the destination end · drones kept away from a public gathering · starts Thursday 15 October · ZFW
Daylight
Sunset at BZN 6:44 pm MDT (00:44 UTC), at DAL 6:58 pm CDT (23:58 UTC) (civil twilight ends 7:22 pm CDT (00:22 UTC)). At 120 knots the arrival at DAL is before sunrise there (7:29 am CDT (12:29 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: Bozeman Yellowstone International, Dallas Love Field.