Plan a flight · Tue 2:21 am PDT (09:21 UTC)

Seattle-Tacoma International to Bradley International SEA → BDL

2,107 nautical miles (2,425 statute miles) east on a straight line, true course 080°, about 064° magnetic at the departure end (variation 16E). At 120 knots that is 12 h 19 min at the quickest height in today's winds (39,000 ft, a 51-knot tailwind), arriving about 5:40 pm EDT (21:40 UTC). Right now SEA is VFR, wind from the southeast (130°) at 6 knots; BDL is VFR, wind calm. 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 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 C24C: thunderstorms (a convective SIGMET) up to 39,000 ft, moving from the west at 35 knots, until 3:55 am PDT (10:55 UTC). Over the route from 1448 to 1638 nm out.

as issued

WSUS32 KKCI 130855
MKCC WST 130855
CONVECTIVE SIGMET 24C
VALID UNTIL 1055Z
MI LH LS LM
FROM 80NNE SAW-60NE ASP-20NE ECK-MBS-30NW SAW-80NNE SAW
AREA EMBD TS MOV FROM 25035KT. TOPS TO FL390.

AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 330 to 529 nm out.
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 route from 739 to 1648 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 24,000 ft to 36,000 ft. Over the route from 1009 to 1109 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 1588 to 1897 nm out.
AIRMET SIERRA 6E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist, fog). Over the route from 1887 to 1957 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist, fog). Over the route from 1937 to 2067 nm out.
AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 140 nm of the route.

Turbulence AIRMET in force: moderate turbulence from 18,000 ft to 39,000 ft, over the route from 330 to 529 nm out; AIRMET in force: moderate turbulence from 24,000 ft to 36,000 ft, over the route from 1009 to 1109 nm out. AIRMET in force: 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 1588 to 1897 nm out. 1 pilot report of turbulence near the line in the last three hours: light to moderate turbulence up to 15,000 ft, 42 nm south, 12:51 am PDT (07:51 UTC). The government's turbulence forecast map ↗

Icing No icing warning in force along the route. No pilot has reported icing near the line in the last three hours. The freezing level is about 12,000 ft (from the winds-aloft temperatures), so icing is possible in cloud above that. The government's icing forecast map ↗

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 SEA.

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

B744 at 800 ft, 42 nm south, 12:51 am PDT (07:51 UTC): light to moderate turbulence up to 15,000 ft. 1618 nm along the route, 42 nm south of the line.
as filed, and in English
```
OSC UA /OV KOSC/TM 0751/FL008/TP B744/SK BASE002-TOP150/TB CONS LGT OCNL MOD BLO 150
```
Report
a routine report filed through OSC
Where
over KOSC
Time
07:51 UTC
Height
at 800 ft
Aircraft
B744
Sky
BASE002-TOP150
Turbulence
continuous light occasional moderate below 15,000 ft

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 16 forecast points nearest it (SEA, YKM, GEG, GPI, GTF, GGW, MOT, GFK, AXN, DLH, GRB, TVC, BUF, SYR, ALB, BDL). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
3,500 ft	280° at 16 kt	−15 kt		135 kt	15 h 36 min	8:57 pm EDT (00:57 UTC)
5,500 ft	280° at 16 kt	−15 kt	1 °C	135 kt	15 h 36 min	8:57 pm EDT (00:57 UTC)
7,500 ft	280° at 20 kt	−18 kt	5 °C	138 kt	15 h 16 min	8:37 pm EDT (00:37 UTC)
9,500 ft	280° at 24 kt	−22 kt	3 °C	142 kt	14 h 50 min	8:11 pm EDT (00:11 UTC)
11,500 ft	280° at 27 kt	−26 kt	1 °C	146 kt	14 h 26 min	7:47 pm EDT (23:47 UTC)
13,500 ft	280° at 29 kt	−27 kt	-3 °C	147 kt	14 h 20 min	7:41 pm EDT (23:41 UTC)
15,500 ft	280° at 29 kt	−27 kt	-8 °C	147 kt	14 h 20 min	7:41 pm EDT (23:41 UTC)
17,500 ft	270° at 30 kt	−28 kt	-13 °C	148 kt	14 h 14 min	7:35 pm EDT (23:35 UTC)
18,000 ft FL180	270° at 30 kt	−28 kt	-14 °C	148 kt	14 h 14 min	7:35 pm EDT (23:35 UTC)
24,000 ft FL240	280° at 31 kt	−29 kt	-25 °C	149 kt	14 h 08 min	7:29 pm EDT (23:29 UTC)
30,000 ft FL300	290° at 38 kt	−36 kt	-37 °C	156 kt	13 h 30 min	6:51 pm EDT (22:51 UTC)
34,000 ft FL340	290° at 46 kt	−45 kt	-43 °C	165 kt	12 h 46 min	6:07 pm EDT (22:07 UTC)
39,000 ft FL390	280° at 51 kt	−51 kt	-48 °C	171 kt	12 h 19 min	5:40 pm EDT (21:40 UTC)

Based on data from the 13th at 06:00 UTC; valid on the 13th at 12:00 UTC for use 08:00 to 15:00 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
SEA	used from 0 nm out; 25 nm from the line	230/6	300/10 4°	340/19 3°	330/21 -2°	310/20 -14°	320/26 -24°	320/29 -41°	320/33 -51°	320/28 -58°
YKM	used from 50 nm out; 65 nm from the line	L/V	280/5 3°	340/13 3°	360/21 -2°	360/30 -14°	360/32 -26°	350/33 -40°	340/41 -50°	340/23 -57°
GEG	used from 100 nm out; 70 nm from the line		310/9 1°	350/18 0°	350/20 -2°	360/24 -15°	010/31 -26°	010/42 -41°	010/42 -50°	350/14 -55°
GPI	used from 250 nm out; 55 nm from the line		290/13 0°	320/16 -2°	320/14 -3°	020/16 -16°	020/29 -26°	020/46 -41°	030/42 -50°	280/8 -50°
GTF	used from 399 nm out; 45 nm from the line		290/9	330/12 1°	330/13 -3°	310/10 -17°	030/7 -29°	030/34 -41°	360/12 -45°	260/14 -47°
GGW	used from 549 nm out; 59 nm from the line		290/11 1°	280/13 0°	270/18 -3°	270/20 -17°	260/26 -30°	260/27 -40°	250/31 -42°	240/36 -45°
MOT	used from 749 nm out; 75 nm from the line		330/12 0°	280/20 1°	270/33 -1°	240/41 -15°	260/46 -28°	240/53 -38°	240/62 -40°	240/70 -44°
GFK	used from 949 nm out; 44 nm from the line	350/18	310/13 5°	280/21 3°	270/38 2°	260/37 -13°	260/41 -27°	250/66 -37°	250/84 -40°	260/82 -44°
AXN	used from 1099 nm out; 90 nm from the line	330/20	290/20 11°	280/37 9°	280/50 2°	260/41 -13°	250/48 -25°	260/82 -33°	260/116 -38°	260/105 -47°
DLH	used from 1148 nm out; 50 nm from the line	070/6	320/21 7°	290/30 5°	290/41 2°	270/46 -13°	270/51 -23°	270/72 -32°	270/104 -38°	270/99 -47°
GRB	used from 1348 nm out; 112 nm from the line	310/23	270/39 16°	270/41 11°	260/39 5°	260/51 -12°	270/49 -20°	280/64 -30°	290/91 -39°	290/105 -49°
TVC	used from 1448 nm out; 74 nm from the line	270/31	270/24 14°	270/39 10°	260/47 3°	270/51 -11°	270/45 -21°	290/63 -31°	290/72 -40°	300/77 -49°
BUF	used from 1698 nm out; 128 nm from the line	260/36	260/29 13°	250/40 7°	260/44 2°	270/48 -10°	280/44 -22°	300/48 -37°	310/48 -47°	300/60 -45°
SYR	used from 1897 nm out; 18 nm from the line	270/16	240/23 12°	240/27 6°	250/30 2°	270/38 -11°	290/48 -21°	300/50 -38°	310/67 -47°	280/37 -46°
ALB	used from 1997 nm out; 29 nm from the line	190/20	280/29 11°	270/29 6°	280/29 1°	290/31 -12°	300/43 -22°	310/55 -38°	320/54 -42°	280/48 -47°
BDL	used from 2047 nm out; 35 nm from the line	190/12	290/25 11°	280/30 6°	300/31 1°	310/30 -11°	320/32 -21°	330/56 -37°	310/41 -44°	290/53 -50°

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
SEA Seattle, WA	departure	VFR Sky: a broken layer at 8,500 feet	from the southeast (130°) at 6 knots	10+ mi	8,500 ft	432 ft	1:53 am PDT (08:53 UTC)
SFF Spokane, WA	200 nm out, 14 nm south of the line, tower	VFR	from the north-northeast (030°) at 3 knots	10+ mi	none	1,956 ft	08:53 UTC
GPI Kalispell, MT	330 nm out, 13 nm north of the line, tower	VFR	calm	10+ mi	none	2,976 ft	08:55 UTC
GGW Glasgow, MT	629 nm out, 5 nm northeast of the line	marginal VFR Sky: overcast at 1,400 feet	from the west-southwest (240°) at 7 knots	10+ mi	1,400 ft	2,295 ft	08:53 UTC
OLF Wolf Point, MT	679 nm out, 5 nm southwest of the line	marginal VFR Sky: overcast at 1,900 feet	from the west-southwest (250°) at 3 knots	10+ mi	1,900 ft	1,988 ft	08:53 UTC
MOT Minot, ND	849 nm out, 20 nm north of the line, tower	marginal VFR Sky: scattered clouds at 500 feet, overcast at 1,200 feet	from the west-northwest (300°) at 5 knots	10+ mi	1,200 ft	1,715 ft	08:54 UTC
DLH Duluth, MN	1218 nm out, 6 nm southeast of the line, tower	marginal VFR Sky: a few clouds at 900 feet, overcast at 1,300 feet	from the north (350°) at 6 knots	8 mi	1,300 ft	1,427 ft	09:19 UTC
SAW Marquette, MI	1418 nm out, 16 nm northeast of the line, tower	low IFR Sky: a broken layer at 300 feet Weather: mist	from the north-northwest (340°) at 3 knots	1.5 mi	300 ft	1,204 ft	09:18 UTC
APN Alpena, MI	1598 nm out, 9 nm south of the line, tower	low IFR Sky: overcast at 200 feet Weather: light rain, mist	from the north-northeast (020°) at 7 knots	2.5 mi	200 ft	689 ft	08:54 UTC
CYOS Owen Sound,	1718 nm out, 3 nm north of the line	no report just now				1,007 ft
SYR Syracuse, NY	1937 nm out, 3 nm southeast of the line, tower	VFR Sky: scattered clouds at 10,000 feet	from the east-southeast (110°) at 5 knots	10+ mi	none	421 ft	08:54 UTC
BDL Windsor Locks, CT	destination	VFR Sky: overcast at 3,400 feet	calm	10+ mi	3,400 ft	173 ft	4:51 am EDT (08:51 UTC)

The highest airport on this list sits at 2,976 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

The codes as issued, and in English, for every airport in the table

SEA Seattle, WA