Plan a flight · Mon 5:23 am MDT (11:23 UTC)

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

1,541 nautical miles (1,773 statute miles) east on a straight line, true course 071°, about 063° magnetic at the departure end (variation 8E). At 120 knots that is 8 h 58 min at the quickest height in today's winds (39,000 ft, a 52-knot tailwind), arriving about 4:21 pm EDT (20:21 UTC). Right now COS is VFR, wind from the southwest (230°) at 11 knots, gusting to 22; BOS is IFR, wind from the north (360°) at 7 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 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 first 80 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 60 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the first 10 nm of the route.
AIRMET TANGO 2W: 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 199 to 646 nm out.
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 last 626 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1223 to 1451 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 189 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 COS.

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

BCS3 at 10,000 ft, 1 nm southeast, 4:15 am MDT (10:15 UTC): moderate turbulence from 7,000 ft to 9,000 ft, remarks: during the climb ssoxs aid. At the destination end, 1 nm southeast of the line.
as filed, and in English
```
BOS UA /OV BOS/TM 1015/FL100/TP BCS3/TB MOD 070-090/RM DURC SSOXS AID
```
Report
a routine report filed through BOS
Where
over BOS
Time
10:15 UTC
Height
at 10,000 ft
Aircraft
BCS3
Turbulence
moderate from 7,000 ft to 9,000 ft
Remarks
during the climb ssoxs aid
A321 at 9,500 ft, 9 nm northwest, 3:05 am MDT (09:05 UTC): moderate turbulence, remarks: moderate turbulence during the descent jfund arrival from from 9,500 ft to 7,000 ft, smooth below. At the destination end, 9 nm northwest of the line.
as filed, and in English
```
BOS UA /OV BOS350010/TM 0905/FL095/TP A321/TB MOD/RM MOD TB DURD JFUND ARR FROM 095-070, SMOOTH BELOW
```
Report
a routine report filed through BOS
Where
10 nm north (350°) of BOS
Time
09:05 UTC
Height
at 9,500 ft
Aircraft
A321
Turbulence
moderate
Remarks
moderate turbulence during the descent jfund arrival from from 9,500 ft to 7,000 ft, smooth below
CRJ9 at 38,000 ft, 40 nm south, 5:06 am MDT (11:06 UTC): no turbulence. 835 nm along the route, 40 nm south of the line.
as filed, and in English
```
OXI UA /OV OXI/TM 1106/FL380/TP CRJ9/TB NEG
```
Report
a routine report filed through OXI
Where
over OXI
Time
11:06 UTC
Height
at 38,000 ft
Aircraft
CRJ9
Turbulence
none
MD83 at 2,500 ft, 38 nm south, 4:43 am MDT (10:43 UTC): clear from 2,500 ft to 60,000 ft, remarks: base 1,000 ft tops 2,500 ft clear above. 974 nm along the route, 38 nm south of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 1043/FL025/TP MD83/RM BASE 010 TOPS 025 CLEAR ABOVE
```
Report
a routine report filed through TOL
Where
over TOL
Time
10:43 UTC
Height
at 2,500 ft
Aircraft
MD83
Remarks
base 1,000 ft tops 2,500 ft clear above
CL35 at 6,000 ft, 25 nm north, 4:47 am MDT (10:47 UTC): overcast from 1,400 ft to 2,600 ft; clear from 2,600 ft to 60,000 ft, remarks: clear above 2,600 ft. 984 nm along the route, 25 nm north of the line.
as filed, and in English
```
PTK UA /OV PTK270006/TM 1047/FL060/TP CL35/SK OVC014-TOP026/RM CLEAR ABOVE 026
```
Report
a routine report filed through PTK
Where
6 nm west (270°) of PTK
Time
10:47 UTC
Height
at 6,000 ft
Aircraft
CL35
Sky
overcast from 1,400 ft, tops 2,600 ft
Remarks
clear above 2,600 ft
B739 at 9,000 ft, 20 nm north, 4:33 am MDT (10:33 UTC): no turbulence, no icing, clear from 9,000 ft to 60,000 ft, wind 295° at 13 knots, remarks: during the descent. 1004 nm along the route, 20 nm north of the line.
as filed, and in English
```
DTW UA /OV DXO033026/TM 1033/FL090/TP B739/SK SKC/WV 29513KTS/TB NEG/IC NEG/RM DURD
```
Report
a routine report filed through DTW
Where
26 nm northeast (033°) of DXO
Time
10:33 UTC
Height
at 9,000 ft
Aircraft
B739
Sky
clear
Wind
from 295° at 13 knots
Turbulence
none
Icing
none
Remarks
during the descent
AC90 at 2,000 ft, 21 nm south, 5:05 am MDT (11:05 UTC): overcast from 2,000 ft to 4,000 ft. 1133 nm along the route, 21 nm south of the line.
as filed, and in English
```
ERI UA /OV JUNOG/TM 1105/FL020/TP AC90/SK OVC020-TOP040
```
Report
a routine report filed through ERI
Where
junog
Time
11:05 UTC
Height
at 2,000 ft
Aircraft
AC90
Sky
overcast from 2,000 ft, tops 4,000 ft
AC90 at 2,000 ft, 19 nm south, 5:05 am MDT (11:05 UTC): remarks: bases reported at at 2,000 ft. 1133 nm along the route, 19 nm south of the line.
as filed, and in English
```
ERI UA /OV KERI/TM 1105/FL020/TP AC90/RM BASES REPORTED AT 020
```
Report
a routine report filed through ERI
Where
over KERI
Time
11:05 UTC
Height
at 2,000 ft
Aircraft
AC90
Remarks
bases reported at at 2,000 ft
B738 climbing, 30 nm north, 4:20 am MDT (10:20 UTC): overcast from 2,500 ft to 4,200 ft; scattered clouds above 700 ft. 1203 nm along the route, 30 nm north of the line.
as filed, and in English
```
BUF UA /OV BUF/TM 1020/FLDURC/TP B738/SK SCT007 OVC025 TOPS042
```
Report
a routine report filed through BUF
Where
over BUF
Time
10:20 UTC
Height
during the climb
Aircraft
B738
Sky
SCT007 OVC025 TOPS042
C208 at 2,700 ft, 39 nm south, 4:01 am MDT (10:01 UTC): remarks: zob. 1203 nm along the route, 39 nm south of the line.
as filed, and in English
```
BFD UA /OV BFD/TM 1001/FL027/TP C208/SK BASE027 TOP043/RM ZOB
```
Report
a routine report filed through BFD
Where
over BFD
Time
10:01 UTC
Height
at 2,700 ft
Aircraft
C208
Sky
BASE027 TOP043
Remarks
zob
A321 at 32,000 ft, 39 nm north, 5:04 am MDT (11:04 UTC): light to moderate turbulence, remarks: occasional moderate from syr to iag zob. 1243 nm along the route, 39 nm north of the line.
as filed, and in English
```
ROC UA /OV ROC/TM 1104/FL320/TP A321/TB CONS LGT OCNL MOD/RM OCNL MOD FROM SYR TO IAG ZOB
```
Report
a routine report filed through ROC
Where
over ROC
Time
11:04 UTC
Height
at 32,000 ft
Aircraft
A321
Turbulence
continuous light occasional moderate
Remarks
occasional moderate from syr to iag zob
A319 at 3,000 ft, 30 nm north, 4:17 am MDT (10:17 UTC): overcast above 3,000 ft, remarks: bases 3,000 ft tops 4,000 ft. 1243 nm along the route, 30 nm north of the line.
as filed, and in English
```
ROC UA /OV ROC220010/TM 1017/FL030/TP A319/SK 030 OVC/RM BASES 030 TOPS 040
```
Report
a routine report filed through ROC
Where
10 nm southwest (220°) of ROC
Time
10:17 UTC
Height
at 3,000 ft
Aircraft
A319
Sky
at 3,000 ft overcast
Remarks
bases 3,000 ft tops 4,000 ft
A21N at 35,000 ft, 7 nm north, 2:52 am MDT (08:52 UTC): light to moderate chop turbulence, remarks: zob. 1243 nm along the route, 7 nm north of the line.
as filed, and in English
```
ROC UA /OV GEE190015/TM 0852/FL350/TP A21N/TB LGHT-MOD CHOP/RM ZOB
```
Report
a routine report filed through ROC
Where
15 nm south (190°) of GEE
Time
08:52 UTC
Height
at 35,000 ft
Aircraft
A21N
Turbulence
lght-mod chop
Remarks
zob
CRJ9 at 2,000 ft, 41 nm north, 3:30 am MDT (09:30 UTC): a routine report with nothing remarked on. 1312 nm along the route, 41 nm north of the line.
as filed, and in English
```
SYR UA /OV 10S/TM 0930/FL020/TP CRJ9/SK B020-T060
```
Report
a routine report filed through SYR
Where
over 10S
Time
09:30 UTC
Height
at 2,000 ft
Aircraft
CRJ9
Sky
B020-T060

13 more routine reports are on the map.

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 (PUB, GLD, GRI, OMA, DSM, BRL, DBQ, JOT, MKG, FWA, CLE, BUF, SYR, ALB, BDL, BOS). 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	270° at 18 kt	−19 kt		139 kt	11 h 05 min	6:28 pm EDT (22:28 UTC)
5,500 ft	270° at 19 kt	−20 kt	23 °C	140 kt	11 h	6:23 pm EDT (22:23 UTC)
7,500 ft	270° at 17 kt	−18 kt	12 °C	138 kt	11 h 10 min	6:33 pm EDT (22:33 UTC)
9,500 ft	270° at 16 kt	−16 kt	9 °C	136 kt	11 h 20 min	6:43 pm EDT (22:43 UTC)
11,500 ft	270° at 18 kt	−19 kt	5 °C	139 kt	11 h 05 min	6:28 pm EDT (22:28 UTC)
13,500 ft	270° at 19 kt	−20 kt	1 °C	140 kt	11 h	6:23 pm EDT (22:23 UTC)
15,500 ft	270° at 21 kt	−22 kt	-3 °C	142 kt	10 h 51 min	6:14 pm EDT (22:14 UTC)
17,500 ft	270° at 23 kt	−24 kt	-8 °C	144 kt	10 h 42 min	6:05 pm EDT (22:05 UTC)
18,000 ft FL180	270° at 23 kt	−24 kt	-9 °C	144 kt	10 h 42 min	6:05 pm EDT (22:05 UTC)
24,000 ft FL240	270° at 29 kt	−30 kt	-21 °C	150 kt	10 h 16 min	5:39 pm EDT (21:39 UTC)
30,000 ft FL300	270° at 40 kt	−40 kt	-35 °C	160 kt	9 h 38 min	5:01 pm EDT (21:01 UTC)
34,000 ft FL340	280° at 52 kt	−51 kt	-41 °C	171 kt	9 h 01 min	4:24 pm EDT (20:24 UTC)
39,000 ft FL390	280° at 54 kt	−52 kt	-50 °C	172 kt	8 h 58 min	4:21 pm EDT (20:21 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
PUB	used from 0 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°
GLD	used from 50 nm out; 70 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°
GRI	used from 249 nm out; 60 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°
OMA	used from 348 nm out; 66 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°
DSM	used from 497 nm out; 26 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°
BRL	used from 596 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°
DBQ	used from 646 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°
JOT	used from 696 nm out; 57 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°
MKG	used from 845 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°
FWA	used from 895 nm out; 70 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°
CLE	used from 994 nm out; 67 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°
BUF	used from 1143 nm out; 43 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°
SYR	used from 1243 nm out; 61 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°
ALB	used from 1342 nm out; 53 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°
BDL	used from 1442 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°
BOS	used from 1491 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°

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
COS Colorado Springs, CO	departure	VFR Sky: a few clouds at 20,000 feet	from the southwest (230°) at 11 knots, gusting to 22	10+ mi	none	6,187 ft	4:54 am MDT (10:54 UTC)
ITR Burlington, CO	119 nm out, 11 nm south of the line	VFR	from the southwest (230°) at 14 knots	10+ mi	none	4,218 ft	10:53 UTC
OIN Oberlin, KS	199 nm out, 4 nm northeast of the line	VFR	from the southwest (220°) at 12 knots	10+ mi	none	2,706 ft	11:15 UTC
LNK Lincoln, NE	388 nm out, 15 nm north of the line, tower	VFR	from the south (190°) at 14 knots, gusting to 20	10+ mi	none	1,218 ft	10:54 UTC
DSM Des Moines, IA	527 nm out, 24 nm north of the line, tower	VFR Sky: a broken layer at 11,000 feet, a broken layer at 19,000 feet	from the south (190°) at 8 knots	10+ mi	11,000 ft	957 ft	10:54 UTC
ARR Chicago/Aurora, IL	765 nm out, 4 nm southwest of the line, tower	VFR	from the south (180°) at 3 knots	9 mi	none	712 ft	10:52 UTC
DPA Chicago/West Chicago, IL	775 nm out, 4 nm northwest of the line, tower	VFR Sky: overcast at 24,000 feet	from the south (180°) at 5 knots	10+ mi	24,000 ft	758 ft	10:52 UTC
ARB Ann Arbor, MI	974 nm out, 1 nm east of the line, tower	reported, no category	calm		none	839 ft	10:53 UTC
ERI Erie, PA	1133 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
ITH Ithaca, NY	1302 nm out, 3 nm west of the line, tower	low IFR Sky: a broken layer at 300 feet, overcast at 1,600 feet	from the northwest (310°) at 3 knots	10+ mi	300 ft	1,099 ft	10:56 UTC
ORH Worcester, MA	1501 nm out, 8 nm south of the line, tower	low IFR Sky: sky obscured at 200 feet Weather: fog	from the north-northeast (020°) at 7 knots	0.25 mi	200 ft	1,009 ft	10:54 UTC
BOS Boston, MA	destination	IFR Sky: overcast at 700 feet	from the north (360°) at 7 knots	10+ mi	700 ft	19 ft	6:54 am EDT (10:54 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 BOS when you get there the forecast at the estimated arrival, 4:21 pm EDT (20:21 UTC)

Wind from the north at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet VFR

The whole forecast for BOS

From Mon 8:00 am EDT (12:00 UTC): wind from the north at 9 knots, visibility 6 miles, mist, overcast at 600 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the north at 9 knots, visibility more than 6 miles, overcast at 1,500 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the north at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet
At times between Mon 1:00 pm EDT (17:00 UTC) and 3:00 pm EDT (19:00 UTC): a broken layer at 3,000 feet
From Tue 12:00 am EDT (04:00 UTC): wind from the northeast at 10 knots, visibility more than 6 miles, overcast at 3,000 feet
From Tue 6:00 am EDT (10:00 UTC): wind from the east-northeast at 10 knots, visibility more than 6 miles, light rain, overcast at 800 feet

The forecast for COS, the departure

From Mon 6:00 am MDT (12:00 UTC): wind from the southwest at 11 knots, gusting to 22, visibility more than 6 miles, a few clouds at 20,000 feet
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
From Mon 10:00 pm MDT (04:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 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 destination end · drones kept away from a public gathering · starts Saturday 17 October · ZBW

Daylight

Sunset at COS 6:23 pm MDT (00:23 UTC), at BOS 6:07 pm EDT (22:07 UTC) (civil twilight ends 6:35 pm EDT (22:35 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 Rockies · loop National Weather Service

Radar now, the southern Plains · 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: City Of Colorado Springs Municipal, General Edward Lawrence Logan International.