The U.S. aircraft register, updated daily
Plan a flight · Mon 2:32 am CDT (07:32 UTC)

St. Louis Downtown Airport to Phoenix Sky Harbor International CPS → PHX

1,102 nautical miles (1,269 statute miles) west on a straight line, true course 260°, about 260° magnetic at the departure end (variation 0E). At 120 knots that is 11 h 22 min at the quickest height in today's winds (8,500 ft, a 23-knot headwind), arriving about 11:54 am MST (18:54 UTC). Right now CPS is VFR, wind from the south (170°) at 3 knots; PHX is VFR, wind from the east-southeast (110°) at 4 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: 6 flights in the DOT's last twelve reported months, the route's page.

The return flight

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), from 1:00 am CDT (06:00 UTC). Over the route from 139 to 646 nm out.
  • AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft, from 1:00 am CDT (06:00 UTC). Over the route from 656 to 1033 nm out.
  • AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft, from 1:00 am CDT (06:00 UTC). Over the last 397 nm of the route.
  • AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 1:00 am CDT (06:00 UTC). Over the route from 1013 to 1083 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 CPS.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

  • B737 at 14,000 ft, 28 nm northwest, 12:15 am CDT (05:15 UTC): moderate turbulence, remarks: during the descent through clouds. At the destination end, 28 nm northwest of the line.
    as filed, and in English
    PHX UA /OV PXR339030/TM 0515/FL140/TP B737/TB OCNL MOD/RM DURD THROUGH CLOUDS
    Report
    a routine report filed through PHX
    Where
    30 nm north (339°) of PXR
    Time
    05:15 UTC
    Height
    at 14,000 ft
    Aircraft
    B737
    Turbulence
    occasional moderate
    Remarks
    during the descent through clouds

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 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 10 forecast points nearest it (STL, COU, SGF, MKC, ICT, GAG, AMA, TCC, ABQ, PHX). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
4,500 ft220° at 32 kt+26 kt19 °C94 kt11 h 43 min12:15 pm MST (19:15 UTC)
6,500 ft220° at 31 kt+26 kt15 °C94 kt11 h 43 min12:15 pm MST (19:15 UTC)
8,500 ft230° at 26 kt+23 kt12 °C97 kt11 h 22 min11:54 am MST (18:54 UTC)
10,500 ft230° at 25 kt+23 kt9 °C97 kt11 h 22 min11:54 am MST (18:54 UTC)
12,500 ft230° at 25 kt+23 kt5 °C97 kt11 h 22 min11:54 am MST (18:54 UTC)
14,500 ft230° at 28 kt+26 kt1 °C94 kt11 h 43 min12:15 pm MST (19:15 UTC)
16,500 ft230° at 30 kt+28 kt-4 °C92 kt11 h 59 min12:31 pm MST (19:31 UTC)
18,000 ft FL180230° at 32 kt+30 kt-7 °C90 kt12 h 15 min12:47 pm MST (19:47 UTC)
24,000 ft FL240240° at 43 kt+41 kt-19 °C79 kt13 h 57 min2:29 pm MST (21:29 UTC)
30,000 ft FL300240° at 63 kt+63 kt-28 °C57 kt19 h 20 min7:52 pm MST (02:52 UTC)
34,000 ft FL340250° at 63 kt+64 kt-37 °C56 kt19 h 41 min8:13 pm MST (03:13 UTC)
39,000 ft FL390260° at 53 kt+54 kt-49 °C66 kt16 h 42 min5:14 pm MST (00:14 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
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
STLused from 0 nm out; 21 nm from the line250/24250/24 16°260/23 9°270/16 6°260/25 -6°270/29 -19°290/34 -33°290/48 -41°290/54 -51°
COUused from 50 nm out; 37 nm from the line230/31230/30 15°260/16 11°270/14 6°260/24 -6°270/27 -18°270/37 -32°280/49 -41°290/56 -51°
SGFused from 149 nm out; 51 nm from the line230/33230/28 15°250/20 13°240/18 7°250/20 -6°250/24 -17°280/42 -31°280/49 -40°290/46 -51°
MKCused from 199 nm out; 76 nm from the line220/44250/28 18°250/18 13°240/12 6°280/24 -6°240/34 -18°260/47 -30°260/51 -40°270/58 -50°
ICTused from 248 nm out; 76 nm from the line200/48230/39 19°240/24 14°240/20 8°240/22 -6°250/31 -18°250/61 -29°260/58 -38°270/54 -49°
GAGused from 397 nm out; 65 nm from the line220/40 19°230/28 14°240/23 8°230/21 -6°240/31 -19°250/66 -29°260/58 -38°260/47 -49°
AMAused from 546 nm out; 72 nm from the line210/38230/29 14°240/29 7°220/27 -5°240/37 -18°240/66 -28°250/59 -37°260/47 -49°
TCCused from 596 nm out; 70 nm from the line210/42230/33 14°230/32 6°220/35 -6°230/49 -19°240/72 -27°250/62 -36°250/52 -48°
ABQused from 745 nm out; 48 nm from the line220/27 11°210/35 5°220/46 -9°230/62 -20°240/78 -25°240/80 -35°240/56 -47°
PHXused from 944 nm out; 134 nm from the line150/5200/21 12°200/27 6°200/35 3°220/58 -8°220/69 -19°220/87 -26°230/93 -35°230/79 -47°

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

AirportWhereConditionsWindVisibilityCeilingElevationReported
CPS Cahokia/St Louis, IL departure VFR from the south (170°) at 3 knots 10+ mi none 412 ft 1:53 am CDT (06:53 UTC)
SUS St Louis, MO 20 nm out, 10 nm northwest of the line, tower VFR from the north-northwest (330°) at 4 knots 10+ mi none 463 ft 06:54 UTC
FSK Fort Scott, KS 219 nm out, 6 nm southwest of the line VFR from the south-southwest (200°) at 12 knots 10+ mi none 918 ft 07:15 UTC
CNU Chanute, KS 258 nm out, 4 nm south of the line VFR from the south (180°) at 11 knots 10+ mi none 1,002 ft 06:52 UTC
ICT Wichita, KS 348 nm out, 16 nm north of the line, tower VFR from the south (190°) at 11 knots 10+ mi none 1,332 ft 06:53 UTC
BFK Buffalo, OK 457 nm out, 5 nm southwest of the line no report just now 1,822 ft
DHT Dalhart, TX 606 nm out, 13 nm south of the line VFR from the south-southwest (200°) at 16 knots 10+ mi none 3,991 ft 06:53 UTC
LVS Las Vegas, NM 735 nm out, 6 nm northwest of the line reported, no category from the south-southeast (150°) at 11 knots 10+ mi none 6,877 ft 06:53 UTC
AEG Albuquerque, NM 824 nm out, 3 nm north of the line, tower VFR Sky: a broken layer at 9,000 feet, overcast at 11,000 feet from the west (260°) at 3 knots 10+ mi 9,000 ft 5,837 ft 07:15 UTC
JTC Springerville, AZ 963 nm out, 11 nm southeast of the line VFR from the south-southwest (200°) at 19 knots, gusting to 31 10+ mi none 7,055 ft 07:15 UTC
SOW Show Low, AZ 993 nm out, 9 nm north of the line reported, no category from the south (190°) at 12 knots, gusting to 17 10+ mi none 6,415 ft 07:15 UTC
PHX Phoenix, AZ destination VFR Sky: scattered clouds at 4,800 feet, scattered clouds at 7,000 feet, a broken layer at 9,500 feet from the east-southeast (110°) at 4 knots 10+ mi 9,500 ft 1,134 ft 11:51 pm MST (06:51 UTC)

The highest airport on this list sits at 7,055 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At PHX when you get there the forecast at the estimated arrival, 11:54 am MST (18:54 UTC)

Wind from the south at 11 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 7,000 feet VFR

The whole forecast for PHX
  • From Sun 11:00 pm MST (06:00 UTC): wind from the east-southeast at 7 knots, visibility more than 6 miles, a few clouds at 4,000 feet, scattered clouds at 7,000 feet
  • From Mon 9:00 am MST (16:00 UTC): wind from the south at 11 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 7,000 feet
  • From Mon 1:00 pm MST (20:00 UTC): wind from the southwest at 14 knots, gusting to 23, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 7,000 feet
  • From Mon 6:00 pm MST (01:00 UTC): wind from the west at 9 knots, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 7,000 feet
  • From Mon 10:00 pm MST (05:00 UTC): wind from the east-southeast at 7 knots, visibility more than 6 miles, showers nearby, scattered clouds at 5,000 feet, a broken layer at 7,000 feet
The forecast for CPS, the departure
  • From Mon 1:00 am CDT (06:00 UTC): wind from the south at 5 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 10 knots, visibility more than 6 miles, clear skies

Temporary flight restrictions on the line or within 25 nm of it

No temporary flight restriction on or near this route right now.

Daylight

Sunset at CPS 6:27 pm CDT (23:27 UTC), at PHX 5:57 pm MST (00:57 UTC) (civil twilight ends 6:22 pm MST (01:22 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

Radar now, the upper Mississippi valley
Radar now, the upper Mississippi valley · loop National Weather Service
Radar now, the southern Plains
Radar now, the southern Plains · loop National Weather Service
Radar now, the southern Rockies
Radar now, the southern Rockies · loop National Weather Service
Radar, the whole country
Radar, the whole country · loop National Weather Service
Surface analysis now
Surface analysis now Weather Prediction Center
Forecast chart, 12 hours ahead
Forecast chart, 12 hours ahead Weather Prediction Center
Forecast chart, 24 hours ahead
Forecast chart, 24 hours ahead Weather Prediction Center

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: St. Louis Downtown Airport, Phoenix Sky Harbor International.