Plan a flight · Mon 2:29 am CDT (07:29 UTC)

George Bush Intcntl/Houston Airport to Portland International IAH → PDX

1,584 nautical miles (1,823 statute miles) northwest on a straight line, true course 314°, about 311° magnetic at the departure end (variation 3E). At 120 knots that is 12 h 40 min at the quickest height in today's winds (4,500 ft, a 5-knot tailwind), arriving about 1:09 pm PDT (20:09 UTC). 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: 2,442 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

SIGMET C12C: thunderstorms (a convective SIGMET) up to 25,000 ft, moving from the southwest at 40 knots, until 3:55 am CDT (08:55 UTC). Over the route from 648 to 697 nm out.
as issued
```
WSUS32 KKCI 120655
MKCC WST 120655
CONVECTIVE SIGMET 12C
VALID UNTIL 0855Z
CO NM
FROM 40W PUB-30SSE PUB-30W CIM-50WSW ALS-40W PUB
DMSHG AREA TS MOV FROM 22040KT. TOPS TO FL250.
```
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, 538 nm along the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 548 to 1036 nm out.
AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 598 to 707 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 667 to 867 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 727 to 1006 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 847 to 1455 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 887 to 1235 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1176 to 1315 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 199 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1395 to 1484 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 IAH.

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 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 13 forecast points nearest it (CLL, DAL, ABI, LBB, AMA, TCC, ALS, GJT, SLC, PIH, BOI, RDM, PDX). 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	200° at 13 kt	−5 kt	7 °C	125 kt	12 h 40 min	1:09 pm PDT (20:09 UTC)
6,500 ft	200° at 12 kt	−4 kt	8 °C	124 kt	12 h 46 min	1:15 pm PDT (20:15 UTC)
8,500 ft	220° at 14 kt	−1 kt	6 °C	121 kt	13 h 05 min	1:34 pm PDT (20:34 UTC)
10,500 ft	230° at 17 kt	+3 kt	3 °C	117 kt	13 h 32 min	2:01 pm PDT (21:01 UTC)
12,500 ft	240° at 19 kt	+6 kt	0 °C	114 kt	13 h 54 min	2:23 pm PDT (21:23 UTC)
14,500 ft	230° at 22 kt	+5 kt	-4 °C	115 kt	13 h 46 min	2:15 pm PDT (21:15 UTC)
16,500 ft	230° at 24 kt	+4 kt	-8 °C	116 kt	13 h 39 min	2:08 pm PDT (21:08 UTC)
18,000 ft FL180	230° at 26 kt	+3 kt	-11 °C	117 kt	13 h 32 min	2:01 pm PDT (21:01 UTC)
24,000 ft FL240	230° at 33 kt	+7 kt	-21 °C	113 kt	14 h 01 min	2:30 pm PDT (21:30 UTC)
30,000 ft FL300	240° at 42 kt	+16 kt	-30 °C	104 kt	15 h 14 min	3:43 pm PDT (22:43 UTC)
34,000 ft FL340	240° at 44 kt	+19 kt	-36 °C	101 kt	15 h 41 min	4:10 pm PDT (23:10 UTC)
39,000 ft FL390	240° at 39 kt	+18 kt	-45 °C	102 kt	15 h 32 min	4:01 pm PDT (23:01 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
CLL	used from 0 nm out; 40 nm from the line	170/22	170/26 18°	200/15 14°	240/13 8°	240/15 -5°	260/17 -13°	290/27 -29°	290/22 -40°	320/30 -51°
DAL	used from 149 nm out; 72 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°
ABI	used from 199 nm out; 59 nm from the line		200/31 17°	210/21 15°	240/15 9°	250/14 -4°	250/24 -14°	250/36 -28°	270/35 -38°	290/41 -50°
LBB	used from 349 nm out; 61 nm from the line		200/36 18°	220/19 15°	240/20 8°	230/24 -4°	240/37 -16°	250/57 -28°	250/51 -38°	270/47 -50°
AMA	used from 399 nm out; 31 nm from the line		210/38	230/29 14°	240/29 7°	220/27 -5°	240/37 -18°	240/66 -28°	250/59 -37°	260/47 -49°
TCC	used from 498 nm out; 45 nm from the line		210/42	230/33 14°	230/32 6°	220/35 -6°	230/49 -19°	240/72 -27°	250/62 -36°	250/52 -48°
ALS	used from 598 nm out; 67 nm from the line				230/37 4°	220/54 -9°	230/62 -22°	240/77 -26°	240/74 -33°	230/59 -45°
GJT	used from 747 nm out; 78 nm from the line			210/43 7°	230/45 1°	220/49 -12°	220/62 -22°	220/59 -28°	230/60 -33°	220/55 -45°
SLC	used from 946 nm out; 68 nm from the line		200/5	230/8 2°	220/20 -2°	210/40 -12°	190/53 -25°	210/62 -30°	220/69 -34°	220/64 -43°
PIH	used from 1096 nm out; 79 nm from the line		L/V	240/13 1°	240/15 -3°	210/42 -15°	200/70 -25°	220/74 -29°	220/71 -36°	220/62 -43°
BOI	used from 1196 nm out; 71 nm from the line		300/7 2°	280/5 -4°	210/16 -9°	210/60 -20°	210/75 -29°	210/63 -32°	220/64 -32°	220/54 -39°
RDM	used from 1395 nm out; 85 nm from the line		040/17 -1°	030/31 -8°	010/29 -12°	010/61 -19°	360/95 -25°	360/82 -36°	360/40 -37°	310/19 -40°
PDX	used from 1544 nm out; 20 nm from the line	L/V	030/7 1°	020/12 -6°	020/29 -9°	010/69 -16°	010/81 -25°	360/83 -40°	360/67 -46°	320/29 -42°

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	Elevation
IAH Houston, TX	departure	no report just now	95 ft
ACT Waco, TX	139 nm out, 4 nm northeast of the line, tower	no report just now	516 ft
SEP Stephenville, TX	199 nm out, 2 nm south of the line	no report just now	1,321 ft
AMA Amarillo, TX	448 nm out, 17 nm northeast of the line, tower	no report just now	3,606 ft
RTN Raton, NM	608 nm out, 5 nm northwest of the line	no report just now	6,352 ft
ALS Alamosa, CO	687 nm out, 8 nm southwest of the line	no report just now	7,539 ft
GJT Grand Junction, CO	847 nm out, 4 nm west of the line, tower	no report just now	4,861 ft
OGD Ogden, UT	1056 nm out, 8 nm northeast of the line, tower	no report just now	4,472 ft
TWF Twin Falls, ID	1186 nm out, 11 nm north of the line, tower	no report just now	4,153 ft
GCD John Day, OR	1415 nm out, 10 nm northeast of the line	no report just now	3,702 ft
CZK Cascade Locks, OR	1564 nm out, 19 nm northeast of the line	no report just now	151 ft
PDX Portland, OR	destination	no report just now	30 ft

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 PDX when you get there the forecast at the estimated arrival, 1:09 pm PDT (20:09 UTC)

PDX has no terminal forecast; use the nearest airport that does.

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

6/0543 MCGREGOR, TX 12 nm from the route, 139 nm along the route · security · ZFW

Daylight

Sunset at IAH 6:54 pm CDT (23:54 UTC), at PDX 6:28 pm PDT (01:28 UTC) (civil twilight ends 6:58 pm PDT (01:58 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 southern Plains · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar now, the Pacific Northwest · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

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: George Bush Intcntl/Houston Airport, Portland International.