Plan a flight · Mon 2:38 am EDT (06:38 UTC)

Manchester Boston Regional to Ontario International MHT → ONT

2,205 nautical miles (2,537 statute miles) west on a straight line, true course 272°, about 287° magnetic at the departure end (variation 15W). At 120 knots that is 21 h 12 min at the quickest height in today's winds (8,500 ft, a 16-knot headwind), arriving about 8:50 pm PDT (03:50 UTC), after sunset at the destination. Right now MHT is marginal VFR, wind from the north (360°) at 4 knots; ONT is marginal VFR, wind variable 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: 17 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 C10C: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 3:55 am EDT (07:55 UTC). Near the route, 1596 nm along the route.

as issued

WSUS32 KKCI 120555
MKCC WST 120555
CONVECTIVE SIGMET 10C
VALID UNTIL 0755Z
CO NM
FROM 20NNE PUB-40WSW LAA-30WSW CIM-50WSW ALS-50ESE HBU-20NNE PUB
AREA TS MOV FROM 22040KT. TOPS TO FL340.

AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 678 nm of the route.
AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the first 160 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 269 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft. Over the first 60 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 40 to 229 nm out.
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). Over the route from 848 to 1427 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 1437 to 1776 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1437 to 2015 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 1526 to 1666 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1706 to 2025 nm out.
AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 1756 to 2045 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 1886 to 1975 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Near the route, 1945 nm along the route.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the last 140 nm of 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 MHT.

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

UAL330 at 35,000 ft, 4 nm west, 12:30 am EDT (04:30 UTC): moderate turbulence, wind 235° at 92 knots. At the departure end, 4 nm west of the line.
as filed, and in English
```
ARP UAL330 4257N 07145W 0430 F350 235/092KT TB MOD TURB CONT MOD CHOP IC
```
Report
a routine report filed through ARP
B763 descending, 0 nm east, 2:21 am EDT (06:21 UTC): overcast above 40,000 ft. At the departure end, 0 nm east of the line.
as filed, and in English
```
MHT UA /OV KMHT/TM 0621/FLDURD/TP B763/SK OVC004
```
Report
a routine report filed through MHT
Where
over KMHT
Time
06:21 UTC
Height
during the descent
Aircraft
B763
Sky
overcast from 400 ft
B763 descending, 0 nm east, 1:55 am EDT (05:55 UTC): a routine report with nothing remarked on. At the departure end, 0 nm east of the line.
as filed, and in English
```
MHT UA /OV RWY 35/TM 0555/FLDURD/TP B763/SK 004-005 FT
```
Report
a routine report filed through MHT
Where
runway 35
Time
05:55 UTC
Height
during the descent
Aircraft
B763
Sky
from 400 ft to 500 ft ft
CRJ7 descending, 0 nm east, 12:09 am EDT (04:09 UTC): a routine report with nothing remarked on. At the departure end, 0 nm east of the line.
as filed, and in English
```
MHT UA /OV RWY 6/TM 0409/FLDURD/TP CRJ7/SK 006
```
Report
a routine report filed through MHT
Where
runway 6
Time
04:09 UTC
Height
during the descent
Aircraft
CRJ7
Sky
at 600 ft
A333 descending, 23 nm south, 1:44 am EDT (05:44 UTC): a routine report with nothing remarked on. 529 nm along the route, 23 nm south of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
```
Report
a routine report filed through DTW
Where
over DTW
Time
05:44 UTC
Height
during the descent
Aircraft
A333
Sky
tops 2,500 ft
B739 descending, 23 nm south, 12:54 am EDT (04:54 UTC): a routine report with nothing remarked on. 529 nm along the route, 23 nm south of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0454/FLDURD/TP B739/SK BASES 011
```
Report
a routine report filed through DTW
Where
over DTW
Time
04:54 UTC
Height
during the descent
Aircraft
B739
Sky
bases 1,100 ft
E170 at 22,500 ft, 36 nm northwest, 1:06 am EDT (05:06 UTC): light to moderate turbulence up to 23,000 ft, remarks: during the descent tbarr star ZDVWC-13. 1546 nm along the route, 36 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN216057/TM 0506/FL225/TP E170/TB CONS LGT OCNL MOD BLO 230/RM DURD TBARR STAR. ZDVWC-13
```
Report
a routine report filed through DEN
Where
57 nm southwest (216°) of DEN
Time
05:06 UTC
Height
at 22,500 ft
Aircraft
E170
Turbulence
continuous light occasional moderate below 23,000 ft
Remarks
during the descent tbarr star ZDVWC-13
B738 at 23,000 ft, 48 nm north, 2:23 am EDT (06:23 UTC): no turbulence from 23,000 ft to 26,000 ft, clear from 23,000 ft to 60,000 ft, remarks: during the descent sskii star ZDVWC-06. 1556 nm along the route, 48 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN230060/TM 0623/FL230/TP B738/SK SKC/TB NEG 230-260/RM DURD SSKII STAR. ZDVWC-06
```
Report
a routine report filed through DEN
Where
60 nm southwest (230°) of DEN
Time
06:23 UTC
Height
at 23,000 ft
Aircraft
B738
Sky
clear
Turbulence
no from 23,000 ft to 26,000 ft
Remarks
during the descent sskii star ZDVWC-06
PC12 at 26,000 ft, 2 nm west, 2:27 am EDT (06:27 UTC): light chop turbulence, remarks: ZDVWC-12. 1596 nm along the route, 2 nm west of the line.
as filed, and in English
```
GUC UA /OV HBU090040/TM 0627/FL260/TP PC12/TB OCNL LGT CHOP/RM ZDVWC-12
```
Report
a routine report filed through GUC
Where
40 nm east (090°) of HBU
Time
06:27 UTC
Height
at 26,000 ft
Aircraft
PC12
Turbulence
occasional light chop
Remarks
ZDVWC-12
B38M at 14,000 ft, 46 nm northwest, 1:47 am EDT (05:47 UTC): light rime icing, 6 °C. 2005 nm along the route, 46 nm northwest of the line.
as filed, and in English
```
LAS UA /OV LAS059040/TM 0547/FL140/TP B38M/TA 06/IC LGT RIME
```
Report
a routine report filed through LAS
Where
40 nm northeast (059°) of LAS
Time
05:47 UTC
Height
at 14,000 ft
Aircraft
B38M
Temperature
6 °C
Icing
light rime
B737 at 14,500 ft, 42 nm northwest, 1:30 am EDT (05:30 UTC): light turbulence. 2045 nm along the route, 42 nm northwest of the line.
as filed, and in English
```
LAS UA /OV LAS155012/TM 0530/FL145/TP B737/TB LGT
```
Report
a routine report filed through LAS
Where
12 nm southeast (155°) of LAS
Time
05:30 UTC
Height
at 14,500 ft
Aircraft
B737
Turbulence
light
B737 at 16,000 ft, 43 nm northwest, 11:45 pm EDT (03:45 UTC): light rime icing, -9 °C. 2085 nm along the route, 43 nm northwest of the line.
as filed, and in English
```
LAS UA /OV LAS215045/TM 0345/FL160/TP B737/TA M09/IC LGT RIME
```
Report
a routine report filed through LAS
Where
45 nm southwest (215°) of LAS
Time
03:45 UTC
Height
at 16,000 ft
Aircraft
B737
Temperature
−9 °C
Icing
light rime
A321 at 3,300 ft, 5 nm south, 12:59 am EDT (04:59 UTC): a broken layer above 3,300 ft, remarks: during the descent. At the destination end, 5 nm south of the line.
as filed, and in English
```
ONT UA /OV ONT078008/TM 0459/FL033/TP A321/SK BKN033-TOPUNKN/RM DURD
```
Report
a routine report filed through ONT
Where
8 nm east (078°) of ONT
Time
04:59 UTC
Height
at 3,300 ft
Aircraft
A321
Sky
a broken layer from 3,300 ft, tops unknown
Remarks
during the descent
B38M at 4,500 ft, 6 nm southeast, 12:15 am EDT (04:15 UTC): a broken layer above 4,500 ft, remarks: during the descent. At the destination end, 6 nm southeast of the line.
as filed, and in English
```
ONT UA /OV ONT078012/TM 0415/FL045/TP B38M/SK BKN045-TOPUNKN/RM DURD
```
Report
a routine report filed through ONT
Where
12 nm east (078°) of ONT
Time
04:15 UTC
Height
at 4,500 ft
Aircraft
B38M
Sky
a broken layer from 4,500 ft, tops unknown
Remarks
during the descent

2 more routine reports are on the map.

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 20 forecast points nearest it (BOS, ALB, SYR, BUF, CLE, MKG, JOT, DBQ, BRL, DSM, OMA, GRI, GLD, PUB, ALS, FMN, BCE, PRC, LAS, ONT). 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	240° at 18 kt	+19 kt	17 °C	101 kt	21 h 50 min	9:28 pm PDT (04:28 UTC)
6,500 ft	250° at 16 kt	+17 kt	13 °C	103 kt	21 h 24 min	9:02 pm PDT (04:02 UTC)
8,500 ft	240° at 15 kt	+16 kt	9 °C	104 kt	21 h 12 min	8:50 pm PDT (03:50 UTC)
10,500 ft	240° at 16 kt	+17 kt	6 °C	103 kt	21 h 24 min	9:02 pm PDT (04:02 UTC)
12,500 ft	240° at 17 kt	+18 kt	2 °C	102 kt	21 h 37 min	9:15 pm PDT (04:15 UTC)
14,500 ft	240° at 21 kt	+22 kt	-2 °C	98 kt	22 h 30 min	10:08 pm PDT (05:08 UTC)
16,500 ft	240° at 24 kt	+25 kt	-6 °C	95 kt	23 h 13 min	10:51 pm PDT (05:51 UTC)
18,000 ft FL180	240° at 26 kt	+28 kt	-10 °C	92 kt	23 h 58 min	11:36 pm PDT (06:36 UTC)
24,000 ft FL240	240° at 33 kt	+35 kt	-21 °C	85 kt	25 h 56 min	1:34 am PDT (08:34 UTC)
30,000 ft FL300	250° at 43 kt	+46 kt	-32 °C	74 kt	29 h 48 min	5:26 am PDT (12:26 UTC)
34,000 ft FL340	260° at 51 kt	+54 kt	-39 °C	66 kt	33 h 25 min	9:03 am PDT (16:03 UTC)
39,000 ft FL390	260° at 50 kt	+52 kt	-48 °C	68 kt	32 h 26 min	8:04 am PDT (15:04 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
BOS	used from 0 nm out; 56 nm from the line	110/20	200/26 12°	280/24 8°	260/29 3°	250/47 -10°	230/59 -19°	230/74 -33°	240/95 -41°	240/96 -53°
ALB	used from 50 nm out; 32 nm from the line	120/9	270/8 10°	L/V 5°	260/9 1°	260/34 -10°	250/42 -22°	240/57 -35°	240/70 -42°	240/65 -50°
SYR	used from 150 nm out; 32 nm from the line	280/13	350/18 10°	340/10 6°	300/15 1°	280/17 -12°	270/16 -23°	280/25 -38°	250/40 -42°	240/53 -50°
BUF	used from 249 nm out; 46 nm from the line	320/10	010/16 10°	360/10 6°	340/13 2°	330/22 -11°	300/25 -23°	320/31 -38°	300/29 -44°	280/36 -50°
CLE	used from 399 nm out; 88 nm from the line	340/7	010/16 13°	350/18 8°	350/20 3°	340/31 -10°	340/46 -21°	340/54 -37°	330/62 -44°	340/65 -49°
MKG	used from 549 nm out; 89 nm from the line	260/22	290/16 15°	300/11 10°	290/5 3°	300/26 -9°	300/32 -20°	320/48 -36°	320/61 -45°	310/74 -53°
JOT	used from 698 nm out; 42 nm from the line	250/23	270/22 15°	250/16 10°	240/9 4°	280/22 -7°	280/29 -19°	300/29 -34°	290/50 -43°	300/64 -52°
DBQ	used from 798 nm out; 46 nm from the line	230/33	250/30 16°	280/15 9°	260/15 5°	260/21 -7°	260/24 -20°	250/37 -33°	270/42 -43°	280/63 -52°
BRL	used from 898 nm out; 65 nm from the line	230/24	240/29 15°	290/16 10°	280/15 4°	260/23 -7°	260/32 -19°	260/36 -33°	280/48 -41°	280/59 -52°
DSM	used from 948 nm out; 22 nm from the line	230/40	250/33 17°	250/18 12°	240/17 5°	260/28 -8°	270/34 -19°	260/41 -33°	260/55 -41°	270/62 -51°
OMA	used from 1048 nm out; 31 nm from the line	220/47	240/33 19°	250/18 11°	230/17 6°	260/29 -8°	250/33 -19°	250/51 -33°	260/61 -40°	270/62 -49°
GRI	used from 1147 nm out; 45 nm from the line		230/35 21°	230/23 13°	220/20 7°	240/25 -8°	240/37 -20°	250/49 -33°	260/57 -38°	260/58 -47°
GLD	used from 1297 nm out; 56 nm from the line		230/49	230/42 15°	220/26 8°	240/18 -7°	230/27 -21°	240/62 -30°	240/61 -35°	250/57 -47°
PUB	used from 1447 nm out; 58 nm from the line			230/25 13°	230/32 6°	220/44 -8°	230/49 -21°	240/70 -28°	240/67 -34°	240/58 -46°
ALS	used from 1596 nm out; 57 nm from the line				230/37 4°	220/54 -9°	230/62 -22°	240/77 -26°	240/74 -33°	230/59 -45°
FMN	used from 1646 nm out; 71 nm from the line			220/28 9°	220/40 2°	220/53 -10°	220/62 -22°	230/79 -28°	240/91 -34°	230/71 -45°
BCE	used from 1796 nm out; 92 nm from the line				220/27 -1°	210/40 -13°	220/54 -21°	220/64 -30°	220/64 -34°	220/52 -44°
PRC	used from 1896 nm out; 91 nm from the line			210/25 5°	200/30 1°	220/55 -10°	220/61 -21°	220/84 -28°	230/90 -34°	230/73 -45°
LAS	used from 1995 nm out; 57 nm from the line		210/21 10°	200/18 5°	200/23 -2°	210/49 -14°	210/63 -21°	220/58 -30°	220/61 -35°	210/56 -44°
ONT	used from 2095 nm out; 85 nm from the line	190/8	190/19 6°	210/23 4°	210/29 -3°	210/47 -13°	210/49 -19°	220/47 -30°	220/50 -36°	220/55 -43°

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
MHT Manchester, NH	departure	marginal VFR Sky: scattered clouds at 400 feet, overcast at 1,200 feet Weather: light rain, mist	from the north (360°) at 4 knots	5 mi	1,200 ft	266 ft	1:53 am EDT (05:53 UTC)
SCH Schenectady, NY	110 nm out, 7 nm south of the line, tower	marginal VFR Sky: a broken layer at 1,100 feet, overcast at 2,000 feet Weather: rain	from the northeast (040°) at 4 knots	7 mi	1,100 ft	377 ft	00:51 UTC
BUF Buffalo, NY	319 nm out, 4 nm north of the line, tower	VFR Sky: scattered clouds at 12,000 feet, a broken layer at 14,000 feet	from the south (170°) at 3 knots	10+ mi	14,000 ft	726 ft	05:54 UTC
PTK Pontiac, MI	529 nm out, 5 nm north of the line, tower	IFR Sky: overcast at 700 feet	from the west-southwest (240°) at 6 knots	10+ mi	700 ft	980 ft	05:53 UTC
PWK Chicago/Prospect Heights/Wheeling, IL	728 nm out, 1 nm southwest of the line, tower	VFR	calm	10+ mi	none	644 ft	05:52 UTC
DSM Des Moines, IA	988 nm out, 15 nm north of the line, tower	VFR Sky: a few clouds at 25,000 feet	from the south (170°) at 7 knots	10+ mi	none	957 ft	05:54 UTC
LNK Lincoln, NE	1137 nm out, 10 nm north of the line, tower	VFR	from the south (190°) at 13 knots	10+ mi	none	1,218 ft	05:54 UTC
COS Colorado Springs, CO	1516 nm out, 6 nm northwest of the line, tower	VFR Sky: a few clouds at 2,000 feet, a few clouds at 18,000 feet	from the south (180°) at 10 knots	10+ mi	none	6,187 ft	05:54 UTC
CEZ Cortez, CO	1726 nm out, 11 nm south of the line	VFR	variable at 5 knots, gusting to 15	10+ mi	none	5,917 ft	05:53 UTC
GCN Grand Canyon, AZ	1915 nm out, 17 nm southeast of the line, tower	VFR Sky: scattered clouds at 600 feet, a broken layer at 3,800 feet, overcast at 4,700 feet	from the south-southwest (200°) at 9 knots	10+ mi	3,800 ft	6,608 ft	06:05 UTC
SBD San Bernardino, CA	2185 nm out, 7 nm south of the line, tower	VFR Sky: scattered clouds at 2,100 feet, a broken layer at 3,500 feet, overcast at 6,500 feet	calm	10+ mi	3,500 ft	1,159 ft	06:20 UTC
ONT Ontario, CA	destination	marginal VFR Sky: a broken layer at 2,900 feet, a broken layer at 4,000 feet, overcast at 5,000 feet Weather: light rain, mist	variable at 4 knots	6 mi	2,900 ft	944 ft	10:53 pm PDT (05:53 UTC)

The highest airport on this list sits at 6,608 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At ONT when you get there the forecast at the estimated arrival, 8:50 pm PDT (03:50 UTC)

Wind from the west-southwest at 9 knots, visibility more than 6 miles, a broken layer at 6,000 feet VFR

The whole forecast for ONT

From Sun 11:00 pm PDT (06:00 UTC): wind from the west-southwest at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 5,000 feet
From Mon 2:00 am PDT (09:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, showers nearby, a broken layer 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

The forecast for MHT, the departure

From Mon 2:00 am EDT (06:00 UTC): wind from the north at 5 knots, visibility 4 miles, light rain, mist, scattered clouds at 400 feet, overcast at 1,000 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, a broken layer at 5,000 feet
From Tue 1:00 am EDT (05:00 UTC): wind light and variable, visibility 3 miles, mist, overcast at 1,500 feet

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

6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 22 nm from the route, 1546 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 1 nm from the route, 2045 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 19 nm from the route, at the destination end · security · ZLA

Daylight

Sunset at MHT 6:08 pm EDT (22:08 UTC), at ONT 6:20 pm PDT (01:20 UTC) (civil twilight ends 6:45 pm PDT (01:45 UTC)). At 120 knots the arrival at ONT is after sunset there (6:20 pm PDT (01:20 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 Northeast · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar now, the upper Mississippi valley · 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: Manchester Boston Regional, Ontario International.