Plan a flight · Sun 5:49 pm PDT (00:49 UTC)

Ontario International to Mbs International ONT → MBS

1,655 nautical miles (1,905 statute miles) northeast on a straight line, true course 060°, about 048° magnetic at the departure end (variation 12E). At 120 knots that is 9 h 27 min at the quickest height in today's winds (39,000 ft, a 55-knot tailwind), arriving about 6:16 am EDT (10:16 UTC), after sunset at the destination. Right now ONT is VFR, wind from the west-southwest (240°) at 9 knots, gusting to 16; MBS is VFR, wind from the south (180°) at 5 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: 1 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 W69W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 6:55 pm PDT (01:55 UTC). Near the route, 269 nm along the route.

as issued

WSUS33 KKCI 112355
MKCW WST 112355
CONVECTIVE SIGMET 69W
VALID UNTIL 0155Z
TX NM AZ
FROM 50ENE PGS-60SE ABQ-20ENE ELP-70SSW SSO-50SE BZA-50ENE PGS
AREA TS MOV FROM 23040KT. TOPS TO FL340.

SIGMET W68W: thunderstorms (a convective SIGMET) up to 36,000 ft, moving from the southwest at 40 knots, until 6:55 pm PDT (01:55 UTC). Over the route from 429 to 638 nm out.

as issued

WSUS33 KKCI 112355
MKCW WST 112355
CONVECTIVE SIGMET 68W
VALID UNTIL 0155Z
CO NM AZ UT
FROM 30W CHE-20NNW TBE-60SE ABQ-40N SJN-30SW MTU-30W CHE
AREA TS MOV FROM 23040KT. TOPS TO FL360.

AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the first 130 nm of the route.
AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 30 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 50 to 798 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 60 to 389 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 130 to 608 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 140 to 718 nm out.
AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 229 to 309 nm out.
AIRMET TANGO 3W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 399 to 449 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 459 to 588 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 ONT.

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

urgent GLF6 at 45,000 ft, 33 nm south, 4:57 pm PDT (23:57 UTC): severe turbulence, remarks: a/c had to exit auto pilot, 45 degree pitch-zdv. 459 nm along the route, 33 nm south of the line.
as filed, and in English
```
FMN UUA /OV RSK280050/TM 2357/FL450/TP GLF6/TB SEV/RM A/C HAD TO EXIT AUTO PILOT, 45 DEGREE PITCH-ZDV
```
Report
an urgent report filed through FMN
Where
50 nm west (280°) of RSK
Time
23:57 UTC
Height
at 45,000 ft
Aircraft
GLF6
Turbulence
severe
Remarks
a/c had to exit auto pilot, 45 degree pitch-zdv
B737 at 14,000 ft, 15 nm north, 2:54 pm PDT (21:54 UTC): moderate turbulence. At the departure end, 15 nm north of the line.
as filed, and in English
```
ONT UA /OV 20N ONT/TM 2154/FL140/TP B737/TB MOD
```
Report
a routine report filed through ONT
Where
20N ont
Time
21:54 UTC
Height
at 14,000 ft
Aircraft
B737
Turbulence
moderate
B38M at 14,000 ft, 5 nm east, 5:13 pm PDT (00:13 UTC): moderate turbulence, light rime icing, 8 °C. At the departure end, 5 nm east of the line.
as filed, and in English
```
ONT UA /OV ONT053034/TM 0013/FL140/TP B38M/TA 08/TB MODERATE TURBULENCE/IC LIGHT RIME ICE 190 - 170
```
Report
a routine report filed through ONT
Where
34 nm northeast (053°) of ONT
Time
00:13 UTC
Height
at 14,000 ft
Aircraft
B38M
Temperature
8 °C
Turbulence
moderate turbulence
Icing
light rime ice at 19,000 ft at 17,000 ft
UAL493 at 24,000 ft, 47 nm northwest, 3:54 pm PDT (22:54 UTC): moderate turbulence. 259 nm along the route, 47 nm northwest of the line.
as filed, and in English
```
ARP UAL493 3648N 11330W 2254 F240 TB MODERATE SK IN CLOUDS IC LIGHT
```
Report
a routine report filed through ARP
GLF4 at 43,000 ft, 32 nm southeast, 5:15 pm PDT (00:15 UTC): moderate turbulence, remarks: zdvwc. 459 nm along the route, 32 nm southeast of the line.
as filed, and in English
```
FMN UA /OV RSK290045/TM 0015/FL430/TP GLF4/TB CONS MOD/RM ZDVWC
```
Report
a routine report filed through FMN
Where
45 nm west (290°) of RSK
Time
00:15 UTC
Height
at 43,000 ft
Aircraft
GLF4
Turbulence
continuous moderate
Remarks
zdvwc
GLF4 at 43,000 ft, 31 nm southeast, 5:09 pm PDT (00:09 UTC): moderate chop turbulence, remarks: ZDVWC-38. 519 nm along the route, 31 nm southeast of the line.
as filed, and in English
```
FMN UA /OV RSK360050/TM 0009/FL430/TP GLF4/TB MOD CHOP/RM ZDVWC-38
```
Report
a routine report filed through FMN
Where
50 nm north (360°) of RSK
Time
00:09 UTC
Height
at 43,000 ft
Aircraft
GLF4
Turbulence
moderate chop
Remarks
ZDVWC-38
UAL2238 at 38,000 ft, 20 nm south, 4:44 pm PDT (23:44 UTC): moderate turbulence, wind 244° at 64 knots. 578 nm along the route, 20 nm south of the line.
as filed, and in English
```
ARP UAL2238 3807N 10649W 2344 F380 244/064KT TB CONT MOD TURB IC
```
Report
a routine report filed through ARP
C680 at 18,000 ft, 39 nm north, 3:35 pm PDT (22:35 UTC): moderate turbulence, remarks: from 18,000 ft to 10,000 ft. 578 nm along the route, 39 nm north of the line.
as filed, and in English
```
ASE UA /OV ASE230020/TM 2235/FL180/TP C680/TB MOD/RM 180-100
```
Report
a routine report filed through ASE
Where
20 nm southwest (230°) of ASE
Time
22:35 UTC
Height
at 18,000 ft
Aircraft
C680
Turbulence
moderate
Remarks
from 18,000 ft to 10,000 ft
C680A at 16,000 ft, 42 nm north, 3:59 pm PDT (22:59 UTC): moderate turbulence, scattered clouds above 16,000 ft, remarks: during the descent. 598 nm along the route, 42 nm north of the line.
as filed, and in English
```
ASE UA /OV HAERI/TM 2259/FL160/TP C680A/SK SCT160/TB CONS MOD/RM DURD
```
Report
a routine report filed through ASE
Where
haeri
Time
22:59 UTC
Height
at 16,000 ft
Aircraft
C680A
Sky
scattered clouds from 16,000 ft
Turbulence
continuous moderate
Remarks
during the descent
CRJ2 at 19,000 ft, 9 nm south, 3:02 pm PDT (22:02 UTC): moderate chop turbulence, remarks: during the climb from KDEN from 12,000 ft to 19,000 ft ZDVWC-41. 678 nm along the route, 9 nm south of the line.
as filed, and in English
```
COS UA /OV BRK262015/TM 2202/FL190/TP CRJ2/TB MOD CHOP/RM DURC FROM KDEN 120-190 ZDVWC-41
```
Report
a routine report filed through COS
Where
15 nm west (262°) of BRK
Time
22:02 UTC
Height
at 19,000 ft
Aircraft
CRJ2
Turbulence
moderate chop
Remarks
during the climb from KDEN from 12,000 ft to 19,000 ft ZDVWC-41
GLF5 at 45,000 ft, 5 nm northeast, 3:44 pm PDT (22:44 UTC): moderate turbulence, remarks: ZDVWC-46. 688 nm along the route, 5 nm northeast of the line.
as filed, and in English
```
COS UA /OV COS350025/TM 2244/FL450/TP GLF5/TB MOD /RM ZDVWC-46
```
Report
a routine report filed through COS
Where
25 nm north (350°) of COS
Time
22:44 UTC
Height
at 45,000 ft
Aircraft
GLF5
Turbulence
moderate
Remarks
ZDVWC-46
A21N at 32,000 ft, 45 nm northwest, 4:42 pm PDT (23:42 UTC): moderate chop turbulence, remarks: ZDVWC-61. 758 nm along the route, 45 nm northwest of the line.
as filed, and in English
```
AKO UA /OV AKO270030/TM 2342/FL320/TP A21N/TB INTMT MOD CHOP/RM ZDVWC-61
```
Report
a routine report filed through AKO
Where
30 nm west (270°) of AKO
Time
23:42 UTC
Height
at 32,000 ft
Aircraft
A21N
Turbulence
intermittent moderate chop
Remarks
ZDVWC-61
UAL2199 at 35,000 ft, 33 nm north, 4:31 pm PDT (23:31 UTC): moderate chop turbulence, wind 247° at 79 knots. 758 nm along the route, 33 nm north of the line.
as filed, and in English
```
ARP UAL2199 4007N 10337W 2331 F350 247/079KT TB MOD CHOP IC
```
Report
a routine report filed through ARP
UAL1340 at 40,000 ft, 24 nm northwest, 5:18 pm PDT (00:18 UTC): moderate chop turbulence, wind 244° at 70 knots. 897 nm along the route, 24 nm northwest of the line.
as filed, and in English
```
ARP UAL1340 4046N 10049W 0018 F400 244/070KT TB OCNL MOD CHOP IC
```
Report
a routine report filed through ARP

16 more routine reports are on the map.

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 13 forecast points nearest it (ONT, LAS, BCE, FMN, GJT, ALS, DEN, GLD, GRI, OMA, DSM, DBQ, MKG). 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	220° at 20 kt	−18 kt	15 °C	138 kt	12 h	8:49 am EDT (12:49 UTC)
7,500 ft	230° at 21 kt	−20 kt	12 °C	140 kt	11 h 49 min	8:38 am EDT (12:38 UTC)
9,500 ft	240° at 20 kt	−20 kt	10 °C	140 kt	11 h 49 min	8:38 am EDT (12:38 UTC)
11,500 ft	230° at 22 kt	−22 kt	5 °C	142 kt	11 h 39 min	8:28 am EDT (12:28 UTC)
13,500 ft	240° at 24 kt	−24 kt	1 °C	144 kt	11 h 30 min	8:19 am EDT (12:19 UTC)
15,500 ft	240° at 26 kt	−27 kt	-4 °C	147 kt	11 h 16 min	8:05 am EDT (12:05 UTC)
17,500 ft	240° at 29 kt	−29 kt	-8 °C	149 kt	11 h 06 min	7:55 am EDT (11:55 UTC)
18,000 ft FL180	240° at 29 kt	−30 kt	-9 °C	150 kt	11 h 02 min	7:51 am EDT (11:51 UTC)
24,000 ft FL240	240° at 32 kt	−33 kt	-20 °C	153 kt	10 h 49 min	7:38 am EDT (11:38 UTC)
30,000 ft FL300	240° at 40 kt	−42 kt	-31 °C	162 kt	10 h 13 min	7:02 am EDT (11:02 UTC)
34,000 ft FL340	250° at 46 kt	−48 kt	-39 °C	168 kt	9 h 51 min	6:40 am EDT (10:40 UTC)
39,000 ft FL390	260° at 53 kt	−55 kt	-48 °C	175 kt	9 h 27 min	6:16 am EDT (10:16 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
ONT	used from 0 nm out; 25 nm from the line	230/11	200/17 6°	230/27 4°	230/32 -2°	210/39 -12°	220/51 -20°	220/48 -29°	210/51 -34°	210/52 -44°
LAS	used from 100 nm out; 61 nm from the line		200/25 11°	230/22 5°	240/25 -1°	220/37 -12°	220/44 -21°	210/52 -27°	210/60 -34°	220/58 -44°
BCE	used from 249 nm out; 91 nm from the line				210/47 0°	200/50 -12°	220/31 -23°	220/56 -26°	220/58 -35°	230/58 -45°
FMN	used from 399 nm out; 89 nm from the line			220/25 13°	220/28 4°	210/51 -9°	220/59 -21°	230/78 -30°	230/77 -36°	230/66 -46°
GJT	used from 499 nm out; 68 nm from the line			210/40 11°	210/46 3°	210/61 -10°	210/68 -22°	220/57 -29°	230/59 -36°	240/66 -46°
ALS	used from 548 nm out; 81 nm from the line				210/32 5°	230/48 -8°	230/49 -20°	230/78 -30°	240/74 -36°	240/61 -47°
DEN	used from 648 nm out; 52 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 748 nm out; 67 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°
GRI	used from 897 nm out; 83 nm from the line		210/31 19°	240/21 14°	240/17 6°	260/27 -7°	260/34 -18°	240/45 -32°	250/56 -40°	260/62 -51°
OMA	used from 1047 nm out; 46 nm from the line	190/34	230/34 19°	250/25 12°	250/18 6°	250/22 -7°	250/28 -19°	260/34 -32°	260/39 -41°	280/56 -51°
DSM	used from 1147 nm out; 53 nm from the line	200/32	240/27 17°	260/19 10°	260/16 5°	260/19 -7°	240/22 -19°	270/20 -32°	270/38 -42°	290/58 -53°
DBQ	used from 1296 nm out; 37 nm from the line	220/23	240/22 16°	240/24 10°	260/18 5°	270/16 -8°	290/27 -19°	310/42 -35°	320/55 -44°	300/71 -52°
MKG	used from 1446 nm out; 88 nm from the line	250/5	320/10 15°	310/19 9°	320/21 3°	310/23 -10°	330/37 -22°	330/51 -38°	320/44 -47°	300/60 -49°

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
ONT Ontario, CA	departure	VFR Sky: a few clouds at 4,300 feet, scattered clouds at 5,500 feet, a broken layer at 12,000 feet	from the west-southwest (240°) at 9 knots, gusting to 16	10+ mi	12,000 ft	944 ft	4:53 pm PDT (23:53 UTC)
SBD San Bernardino, CA	20 nm out, 8 nm south of the line, tower	VFR Sky: a broken layer at 3,800 feet, a broken layer at 4,800 feet, a broken layer at 6,000 feet	from the south (190°) at 6 knots	10+ mi	3,800 ft	1,159 ft	23:55 UTC
BDG Blanding, UT	449 nm out, 3 nm northwest of the line	VFR	from the south-southwest (200°) at 21 knots, gusting to 33	10+ mi	none	5,867 ft	22:15 UTC
GUC Gunnison, CO	578 nm out, 6 nm north of the line	VFR Sky: a broken layer at 9,000 feet	from the south (180°) at 12 knots	10+ mi	9,000 ft	7,679 ft	23:56 UTC
COS Colorado Springs, CO	688 nm out, 21 nm south of the line, tower	VFR Sky: scattered clouds at 10,000 feet, a broken layer at 14,000 feet, a broken layer at 24,000 feet	from the south-southwest (210°) at 13 knots	10+ mi	14,000 ft	6,187 ft	23:54 UTC
EAR Kearney, NE	967 nm out, 6 nm southeast of the line	VFR	from the south-southeast (160°) at 8 knots	10+ mi	none	2,131 ft	23:56 UTC
GRI Grand Island, NE	1007 nm out, 3 nm southwest of the line, tower	VFR	from the south (170°) at 8 knots	10+ mi	none	1,847 ft	23:53 UTC
ALO Waterloo, IA	1286 nm out, 16 nm north of the line, tower	VFR	from the south (170°) at 8 knots	10+ mi	none	873 ft	23:54 UTC
UES Waukesha, WI	1476 nm out, 5 nm west of the line, tower	VFR	from the south (180°) at 5 knots	10+ mi	none	911 ft	23:45 UTC
MKG Muskegon, MI	1556 nm out, 7 nm southeast of the line, tower	VFR Sky: a few clouds at 25,000 feet	from the southwest (220°) at 3 knots	10+ mi	none	628 ft	23:55 UTC
MBS Saginaw, MI	destination	VFR	from the south (180°) at 5 knots	10+ mi	none	668 ft	7:53 pm EDT (23:53 UTC)

The highest airport on this list sits at 7,679 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MBS when you get there the forecast at the estimated arrival, 6:16 am EDT (10:16 UTC)

Wind from the south-southwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR

The whole forecast for MBS

From Sun 8:00 pm EDT (00:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, a broken layer at 1,800 feet
From Sun 9:00 pm EDT (01:00 UTC): wind from the south-southwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 14 knots, gusting to 24, visibility more than 6 miles, scattered clouds at 25,000 feet

The forecast for ONT, the departure

From Sun 5:00 pm PDT (00:00 UTC): wind from the southwest at 11 knots, gusting to 18, visibility more than 6 miles, a few clouds at 3,000 feet, a broken layer at 5,000 feet
From Sun 11:00 pm PDT (06:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, showers nearby, overcast at 2,500 feet
From Mon 3:00 am PDT (10:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, showers nearby, a few clouds at 2,500 feet, a broken layer at 5,000 feet
From Mon 11:00 am PDT (18:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, a broken layer at 5,000 feet
From Mon 2:00 pm PDT (21:00 UTC): wind from the west-southwest at 11 knots, gusting to 18, visibility more than 6 miles, a broken layer at 5,000 feet
From Mon 8:00 pm PDT (03:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, a broken layer at 6,000 feet

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

4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 19 nm from the route, at the departure end · security · ZLA
6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 6 nm from the route, 160 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
6/8890 LAS VEGAS, NV, Tuesday, October 13, 2026 Local 19 nm from the route, 170 nm along the route · a VIP movement · starts tomorrow · ZLA
6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC on the route, 658 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
6/8770 COLORADO SPRINGS, CO, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 4 nm from the route, 678 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 12 October · ZDV

Daylight

Sunset at ONT 6:20 pm PDT (01:20 UTC), at MBS 6:58 pm EDT (22:58 UTC) (civil twilight ends 7:27 pm EDT (23:27 UTC)). At 120 knots the arrival at MBS is before sunrise there (7:46 am EDT (11:46 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 Pacific Southwest · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar now, the northern Rockies · 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: Ontario International, Mbs International.