Plan a flight · Mon 4:39 am EDT (08:39 UTC)

General Edward Lawrence Logan International to City Of Colorado Springs Municipal BOS → COS

1,541 nautical miles (1,773 statute miles) west on a straight line, true course 273°, about 288° magnetic at the departure end (variation 15W). At 120 knots that is 14 h 58 min at the quickest height in today's winds (8,500 ft, a 17-knot headwind), arriving about 5:37 pm MDT (23:37 UTC). Right now BOS is IFR, wind from the north-northeast (020°) at 10 knots; COS is VFR, wind from the south (170°) at 13 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: 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

AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist, fog). Over the first 626 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 179 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 89 to 318 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 835 to 1402 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 80 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 42,000 ft. Over the last 60 nm of the route.
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 last 20 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 BOS.

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

A321 at 31,000 ft, 8 nm northwest, 2:41 am EDT (06:41 UTC): moderate turbulence, remarks: mtw +/-15KT zdvwc. At the destination end, 8 nm northwest of the line.
as filed, and in English
```
COS UA /OV BRK/TM 0641/FL310/TP A321/TB MOD/RM MTW +/-15KT. ZDVWC
```
Report
a routine report filed through COS
Where
over BRK
Time
06:41 UTC
Height
at 31,000 ft
Aircraft
A321
Turbulence
moderate
Remarks
mtw +/-15KT zdvwc
B763 descending, 33 nm north, 2:21 am EDT (06:21 UTC): overcast above 40,000 ft. At the departure end, 33 nm north 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, 33 nm north, 1:55 am EDT (05:55 UTC): a routine report with nothing remarked on. At the departure end, 33 nm north 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
A333 descending, 3 nm southwest, 1:44 am EDT (05:44 UTC): a routine report with nothing remarked on. 547 nm along the route, 3 nm southwest 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
B738 at 1,700 ft, 38 nm south, 2:20 am EDT (06:20 UTC): overcast from 1,700 ft to 2,000 ft, remarks: during the descent. 567 nm along the route, 38 nm south of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0620/FL017/TP B738/SK OVC017-TOP020/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
06:20 UTC
Height
at 1,700 ft
Aircraft
B738
Sky
overcast from 1,700 ft, tops 2,000 ft
Remarks
during the descent
A21N at 33,000 ft, 8 nm northwest, 2:59 am EDT (06:59 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. At the destination end, 8 nm northwest of the line.
as filed, and in English
```
COS UA /OV BRK/TM 0659/FL330/TP A21N/TB LGT CHOP/RM MTW +/-10KT 100FT. ZDVWC
```
Report
a routine report filed through COS
Where
over BRK
Time
06:59 UTC
Height
at 33,000 ft
Aircraft
A21N
Turbulence
light chop
Remarks
mtw a 10-knot loss of airspeed 100FT zdvwc
B38M at 22,000 ft, 43 nm northwest, 4:14 am EDT (08:14 UTC): no turbulence, remarks: zdvwc. At the destination end, 43 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN216059/TM 0814/FL220/TP B38M/TB NEG/RM ZDVWC
```
Report
a routine report filed through DEN
Where
59 nm southwest (216°) of DEN
Time
08:14 UTC
Height
at 22,000 ft
Aircraft
B38M
Turbulence
none
Remarks
zdvwc
B38M at 37,000 ft, 42 nm west, 3:42 am EDT (07:42 UTC): light chop turbulence, remarks: mtw +/-7KT zdvwc. At the destination end, 42 nm west of the line.
as filed, and in English
```
PUB UA /OV PUB280055/TM 0742/FL370/TP B38M/TB LGT CHOP/RM MTW +/-7KT. ZDVWC
```
Report
a routine report filed through PUB
Where
55 nm west (280°) of PUB
Time
07:42 UTC
Height
at 37,000 ft
Aircraft
B38M
Turbulence
light chop
Remarks
mtw +/-7KT zdvwc
A320 at 31,000 ft, 42 nm southwest, 2:58 am EDT (06:58 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. At the destination end, 42 nm southwest of the line.
as filed, and in English
```
PUB UA /OV PUB260040/TM 0658/FL310/TP A320/TB LGT CHOP/RM MTW +/-10KT 100FT. ZDVWC
```
Report
a routine report filed through PUB
Where
40 nm west (260°) of PUB
Time
06:58 UTC
Height
at 31,000 ft
Aircraft
A320
Turbulence
light chop
Remarks
mtw a 10-knot loss of airspeed 100FT zdvwc
CRJ2 at 22,000 ft, 47 nm northwest, 2:35 am EDT (06:35 UTC): no turbulence up to 26,000 ft, no icing, clear from 22,000 ft to 60,000 ft, remarks: during the descent ZDVWC-26. At the destination end, 47 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN220060/TM 0635/FL220/TP CRJ2/SK SKC/TB NEG BLO 260/IC NEG/RM DURD/ ZDVWC-26
```
Report
a routine report filed through DEN
Where
60 nm southwest (220°) of DEN
Time
06:35 UTC
Height
at 22,000 ft
Aircraft
CRJ2
Sky
clear
Turbulence
no below 26,000 ft
Icing
none
Remarks
during the descent ZDVWC-26

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 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 16 forecast points nearest it (BOS, BDL, ALB, SYR, BUF, CLE, FWA, MKG, JOT, DBQ, BRL, DSM, OMA, GRI, GLD, PUB). 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	270° at 20 kt	+21 kt	23 °C	99 kt	15 h 34 min	6:13 pm MDT (00:13 UTC)
6,500 ft	270° at 18 kt	+18 kt	14 °C	102 kt	15 h 06 min	5:45 pm MDT (23:45 UTC)
8,500 ft	270° at 16 kt	+17 kt	11 °C	103 kt	14 h 58 min	5:37 pm MDT (23:37 UTC)
10,500 ft	270° at 17 kt	+18 kt	7 °C	102 kt	15 h 06 min	5:45 pm MDT (23:45 UTC)
12,500 ft	270° at 19 kt	+20 kt	3 °C	100 kt	15 h 25 min	6:04 pm MDT (00:04 UTC)
14,500 ft	270° at 20 kt	+21 kt	-1 °C	99 kt	15 h 34 min	6:13 pm MDT (00:13 UTC)
16,500 ft	270° at 22 kt	+23 kt	-6 °C	97 kt	15 h 53 min	6:32 pm MDT (00:32 UTC)
18,000 ft FL180	270° at 23 kt	+24 kt	-9 °C	96 kt	16 h 03 min	6:42 pm MDT (00:42 UTC)
24,000 ft FL240	270° at 29 kt	+31 kt	-21 °C	89 kt	17 h 19 min	7:58 pm MDT (01:58 UTC)
30,000 ft FL300	270° at 40 kt	+40 kt	-35 °C	80 kt	19 h 16 min	9:55 pm MDT (03:55 UTC)
34,000 ft FL340	280° at 52 kt	+51 kt	-41 °C	69 kt	22 h 20 min	12:59 am MDT (06:59 UTC)
39,000 ft FL390	280° at 54 kt	+52 kt	-50 °C	68 kt	22 h 40 min	1:19 am MDT (07:19 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th 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
BOS	used from 0 nm out; 25 nm from the line	020/10	360/20 10°	340/19 7°	290/21 2°	270/35 -9°	260/42 -22°	250/55 -38°	240/75 -43°	250/72 -51°
BDL	used from 50 nm out; 29 nm from the line	020/15	010/19 10°	340/10 7°	300/17 3°	280/23 -10°	250/35 -22°	250/44 -38°	250/55 -42°	250/57 -51°
ALB	used from 99 nm out; 18 nm from the line	340/22	340/19 9°	320/16 7°	330/16 2°	330/19 -11°	320/21 -23°	320/25 -39°	280/30 -44°	270/41 -51°
SYR	used from 199 nm out; 38 nm from the line	330/17	320/14 9°	350/18 8°	350/26 2°	340/25 -11°	360/34 -22°	350/43 -39°	330/50 -46°	350/50 -54°
BUF	used from 298 nm out; 35 nm from the line	300/11	330/15 11°	340/26 8°	330/28 2°	340/31 -10°	340/32 -21°	340/52 -37°	340/59 -46°	330/66 -53°
CLE	used from 398 nm out; 83 nm from the line	310/7	350/20 14°	340/16 9°	320/21 2°	320/32 -8°	330/34 -20°	330/45 -36°	320/60 -45°	320/64 -51°
FWA	used from 547 nm out; 95 nm from the line	270/20	300/16 15°	290/14 10°	280/17 3°	290/25 -7°	280/30 -19°	280/34 -35°	290/48 -44°	300/64 -52°
MKG	used from 646 nm out; 68 nm from the line	260/28	260/18 15°	250/16 9°	260/22 4°	280/31 -9°	270/35 -21°	270/44 -35°	270/42 -45°	290/61 -51°
JOT	used from 696 nm out; 50 nm from the line	250/25	260/22 14°	250/17 9°	270/21 5°	280/28 -8°	280/36 -20°	270/41 -35°	280/57 -42°	290/65 -50°
DBQ	used from 845 nm out; 51 nm from the line	250/27	260/23 17°	240/26 10°	260/30 4°	280/26 -9°	280/36 -21°	270/41 -36°	280/52 -41°	290/67 -48°
BRL	used from 895 nm out; 44 nm from the line	250/32	250/19 17°	260/15 11°	270/16 3°	290/23 -7°	260/42 -20°	270/52 -34°	280/63 -39°	290/64 -48°
DSM	used from 944 nm out; 47 nm from the line	250/47	260/25 20°	240/19 11°	240/31 5°	250/26 -9°	260/38 -20°	260/47 -34°	270/58 -37°	270/61 -47°
OMA	used from 1044 nm out; 53 nm from the line	230/47	240/33 21°	230/22 13°	220/27 5°	240/35 -8°	250/43 -21°	260/47 -33°	260/59 -36°	270/58 -46°
GRI	used from 1193 nm out; 39 nm from the line		230/39 23°	230/32 15°	210/29 7°	230/31 -8°	230/43 -21°	250/52 -31°	260/59 -35°	260/59 -46°
GLD	used from 1292 nm out; 81 nm from the line		260/37	260/25 14°	250/27 8°	230/36 -8°	230/49 -21°	250/71 -30°	260/82 -36°	250/73 -48°
PUB	used from 1491 nm out; 41 nm from the line			260/45 11°	240/38 6°	230/47 -8°	230/51 -19°	240/74 -29°	240/82 -35°	250/72 -48°

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
BOS Boston, MA	departure	IFR Sky: overcast at 700 feet	from the north-northeast (020°) at 10 knots	10+ mi	700 ft	19 ft	3:54 am EDT (07:54 UTC)
ORH Worcester, MA	40 nm out, 8 nm south of the line, tower	low IFR Sky: sky obscured at 200 feet Weather: mist	from the north (010°) at 9 knots	1 mi	200 ft	1,009 ft	08:22 UTC
ITH Ithaca, NY	239 nm out, 3 nm west of the line, tower	IFR Sky: scattered clouds at 300 feet, overcast at 800 feet Weather: mist	calm	2.5 mi	800 ft	1,099 ft	08:35 UTC
ERI Erie, PA	408 nm out, 19 nm south of the line, tower	marginal VFR Sky: overcast at 3,000 feet	variable at 4 knots	10+ mi	3,000 ft	732 ft	00:51 UTC
ARB Ann Arbor, MI	567 nm out, 1 nm east of the line, tower	reported, no category	calm		none	839 ft	07:53 UTC
DPA Chicago/West Chicago, IL	765 nm out, 4 nm northwest of the line, tower	VFR	from the south (180°) at 5 knots	10+ mi	none	758 ft	07:52 UTC
ARR Chicago/Aurora, IL	775 nm out, 4 nm southwest of the line, tower	VFR	from the south-southwest (210°) at 6 knots	10+ mi	none	712 ft	07:52 UTC
DSM Des Moines, IA	1014 nm out, 24 nm north of the line, tower	VFR Sky: a few clouds at 25,000 feet	from the south-southwest (200°) at 9 knots	10+ mi	none	957 ft	07:54 UTC
LNK Lincoln, NE	1153 nm out, 15 nm north of the line, tower	VFR	from the south (190°) at 12 knots	10+ mi	none	1,218 ft	07:54 UTC
OIN Oberlin, KS	1342 nm out, 4 nm northeast of the line	VFR	from the southwest (220°) at 19 knots, gusting to 26	10+ mi	none	2,706 ft	08:15 UTC
ITR Burlington, CO	1422 nm out, 11 nm south of the line	VFR	from the south (190°) at 11 knots	10+ mi	none	4,218 ft	07:53 UTC
COS Colorado Springs, CO	destination	VFR Sky: a few clouds at 20,000 feet	from the south (170°) at 13 knots	10+ mi	none	6,187 ft	1:54 am MDT (07:54 UTC)

The highest airport on this list sits at 6,187 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At COS when you get there the forecast at the estimated arrival, 5:37 pm MDT (23:37 UTC)

Wind from the south-southwest at 20 knots, gusting to 30, visibility more than 6 miles, scattered clouds at 12,000 feet VFR

The whole forecast for COS

From Mon 12:00 am MDT (06:00 UTC): wind from the south at 12 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 20,000 feet
From Mon 6:00 am MDT (12:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, clear skies
From Mon 11:00 am MDT (17:00 UTC): wind from the south at 15 knots, gusting to 25, visibility more than 6 miles, scattered clouds at 12,000 feet
From Mon 1:00 pm MDT (19:00 UTC): wind from the south-southwest at 20 knots, gusting to 30, visibility more than 6 miles, scattered clouds at 12,000 feet
From Mon 7:00 pm MDT (01:00 UTC): wind from the south-southwest at 12 knots, visibility more than 6 miles, clear skies

The forecast for BOS, the departure

From Mon 4:00 am EDT (08:00 UTC): wind from the north-northeast at 12 knots, visibility 6 miles, mist, overcast at 800 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the north at 8 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
From Mon 3:00 pm EDT (19:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
From Mon 11:00 pm EDT (03:00 UTC): wind from the northeast at 10 knots, visibility more than 6 miles, scattered clouds at 4,500 feet

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

6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 16 nm from the route, at the departure end · drones kept away from a public gathering · starts Saturday 17 October · ZBW

Daylight

Sunset at BOS 6:07 pm EDT (22:07 UTC), at COS 6:23 pm MDT (00:23 UTC) (civil twilight ends 6:50 pm MDT (00:50 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: General Edward Lawrence Logan International, City Of Colorado Springs Municipal.