General Edward Lawrence Logan International to St. Louis Downtown Airport BOS → CPS
902 nautical miles (1,038 statute miles) west on a straight line, true course 262°, about 277° magnetic at the departure end (variation 15W). At 120 knots that is 7 h 47 min at the quickest height in today's winds (4,500 ft, a 4-knot headwind), arriving about 6:12 am CDT (11:12 UTC), after sunset at the destination. Right now BOS is IFR, wind from the east-northeast (060°) at 12 knots; CPS 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 E10E: thunderstorms (a convective SIGMET) up to 39,000 ft, moving from the southwest at 35 knots, until 12:55 am EDT (04:55 UTC). Near the route, 40 nm along the route.
as issued
WSUS31 KKCI 120255 MKCE WST 120255 CONVECTIVE SIGMET 10E VALID UNTIL 0455Z MA RI CT NY AND MA RI NJ NY CT CSTL WTRS FROM 20NW PVD-70SSE ACK-190SSE HTO-70ESE CYN-30SW BDL-20NW PVD AREA EMBD TS MOV FROM 24035KT. TOPS TO FL390.
- 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 763 nm of the route.
- AIRMET ZULU 1C: moderate icing up to 25,000 ft. Over the first 79 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 426 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the first 228 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 129 to 406 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 BOS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A333 at 15,000 ft, 44 nm north, 9:37 pm EDT (01:37 UTC): moderate chop turbulence up to 15,000 ft, remarks: during the climb. At the departure end, 44 nm north of the line.
as filed, and in English
PSM UA /OV PSM/TM 0137/FL150/TP A333/TB MOD CHOP BLO 150/RM DURC
- Report
- a routine report filed through PSM
- Where
- over PSM
- Time
- 01:37 UTC
- Height
- at 15,000 ft
- Aircraft
- A333
- Turbulence
- moderate chop below 15,000 ft
- Remarks
- during the climb
- A321 at 5,000 ft, 21 nm southeast, 8:46 pm EDT (00:46 UTC): moderate turbulence from 5,000 ft to 15,000 ft. At the departure end, 21 nm southeast of the line.
as filed, and in English
BOS UA /OV BOS150020/TM 0046/FL050/TP A321/TB MOD 150-050
- Report
- a routine report filed through BOS
- Where
- 20 nm southeast (150°) of BOS
- Time
- 00:46 UTC
- Height
- at 5,000 ft
- Aircraft
- A321
- Turbulence
- moderate from 15,000 ft to 5,000 ft
- GLF4 at 10,000 ft, 6 nm north, 9:03 pm EDT (01:03 UTC): moderate turbulence above 10,000 ft, light rain, remarks: instrument conditions. 59 nm along the route, 6 nm north of the line.
as filed, and in English
BDL UA /OV CEF060010/TM 0103/FL100/TP GLF4/WX -RA/TB MOD 100/RM IMC
- Report
- a routine report filed through BDL
- Where
- 10 nm northeast (060°) of CEF
- Time
- 01:03 UTC
- Height
- at 10,000 ft
- Aircraft
- GLF4
- Weather
- light rain
- Turbulence
- moderate at 10,000 ft
- Remarks
- instrument conditions
- E75S at 16,000 ft, 21 nm south, 8:28 pm EDT (00:28 UTC): moderate chop turbulence. 99 nm along the route, 21 nm south of the line.
as filed, and in English
POU UA /OV PWL100025/TM 0028/FL160/TP E75S/TB MOD CHOP
- Report
- a routine report filed through POU
- Where
- 25 nm east (100°) of PWL
- Time
- 00:28 UTC
- Height
- at 16,000 ft
- Aircraft
- E75S
- Turbulence
- moderate chop
- A320 at 34,000 ft, 38 nm north, 10:03 pm EDT (02:03 UTC): moderate chop turbulence. 604 nm along the route, 38 nm north of the line.
as filed, and in English
FWA UA /OV FWA115040/TM 0203/FL340/TP A320/TB MOD CHOP
- Report
- a routine report filed through FWA
- Where
- 40 nm southeast (115°) of FWA
- Time
- 02:03 UTC
- Height
- at 34,000 ft
- Aircraft
- A320
- Turbulence
- moderate chop
- B738 at 300 ft, 0 nm south, 11:00 pm EDT (03:00 UTC): a broken layer above 500 ft, remarks: during the descent runway 4R bos. At the departure end, 0 nm south of the line.
as filed, and in English
BOS UA /OV KBOS/TM 0300/FL003/TP B738/SK BKN005/RM DURD RY 4R BOS
- Report
- a routine report filed through BOS
- Where
- over KBOS
- Time
- 03:00 UTC
- Height
- at 300 ft
- Aircraft
- B738
- Sky
- a broken layer from 500 ft
- Remarks
- during the descent runway 4R bos
- UAL42 at 35,000 ft, 11 nm northeast, 10:02 pm EDT (02:02 UTC): light turbulence, -45 °C, wind 256° at 85 knots. At the departure end, 11 nm northeast of the line.
as filed, and in English
ARP UAL42 4232N 07054W 0202 F350 MS45 256/085KT TB LIGHT SK ON TOP IC NONE
- Report
- a routine report filed through ARP
- BCS3 at 600 ft, 2 nm northeast, 9:20 pm EDT (01:20 UTC): a broken layer above 600 ft, remarks: during the descent runway 22L bos. At the departure end, 2 nm northeast of the line.
as filed, and in English
BOS UA /OV KBOS040002/TM 0120/FL006/TP BCS3/SK BKN006/RM DURD RY 22L BOS
- Report
- a routine report filed through BOS
- Where
- 2 nm northeast (040°) of KBOS
- Time
- 01:20 UTC
- Height
- at 600 ft
- Aircraft
- BCS3
- Sky
- a broken layer from 600 ft
- Remarks
- during the descent runway 22L bos
- E75S at 12,000 ft, 41 nm south, 8:59 pm EDT (00:59 UTC): light turbulence, remarks: during the climb from 12,000 ft to 17,000 ft smooth above 18,000 ft. At the departure end, 41 nm south of the line.
as filed, and in English
EWB UA /OV EWB/TM 0059/FL120/TP E75S/TB LGT MOD/RM DURC 120-170 SMOOTH ABOVE 180
- Report
- a routine report filed through EWB
- Where
- over EWB
- Time
- 00:59 UTC
- Height
- at 12,000 ft
- Aircraft
- E75S
- Turbulence
- light moderate
- Remarks
- during the climb from 12,000 ft to 17,000 ft smooth above 18,000 ft
- A321 , 0 nm south, 8:56 pm EDT (00:56 UTC): remarks: braking action fair during landing runway 22L bos. At the departure end, 0 nm south of the line.
as filed, and in English
BOS UA /OV KBOS/TM 0056/FL000/TP A321/RM BRAKING ACTION FAIR DURING LANDING RY 22L BOS
- Report
- a routine report filed through BOS
- Where
- over KBOS
- Time
- 00:56 UTC
- Height
- at 0 ft
- Aircraft
- A321
- Remarks
- braking action fair during landing runway 22L bos
- CRJ9 descending, 37 nm north, 11:16 pm EDT (03:16 UTC): a routine report with nothing remarked on. At the departure end, 37 nm north of the line.
as filed, and in English
MHT UA /OV RWY 6/TM 0316/FLDURD/TP CRJ9/SK 004
- Report
- a routine report filed through MHT
- Where
- runway 6
- Time
- 03:16 UTC
- Height
- during the descent
- Aircraft
- CRJ9
- Sky
- at 400 ft
- B38M descending, 37 nm north, 10:53 pm EDT (02:53 UTC): overcast above 1,500 ft; scattered clouds above 500 ft. At the departure end, 37 nm north of the line.
as filed, and in English
MHT UA /OV RWY 17/TM 0253/FLDURD/TP B38M/SK 015 OVC / 005 SCT
- Report
- a routine report filed through MHT
- Where
- runway 17
- Time
- 02:53 UTC
- Height
- during the descent
- Aircraft
- B38M
- Sky
- at 1,500 ft overcast; at 500 ft scattered
- B38M descending, 37 nm north, 10:14 pm EDT (02:14 UTC): remarks: mod-hvy precip. At the departure end, 37 nm north of the line.
as filed, and in English
MHT UA /OV RWY 17/TM 0214/FLDURD/TP B38M/SK 015/RM MOD-HVY PRECIP
- Report
- a routine report filed through MHT
- Where
- runway 17
- Time
- 02:14 UTC
- Height
- during the descent
- Aircraft
- B38M
- Sky
- at 1,500 ft
- Remarks
- mod-hvy precip
- E55P at 600 ft, 8 nm north, 8:48 pm EDT (00:48 UTC): overcast above 600 ft. At the departure end, 8 nm north of the line.
as filed, and in English
BED UA /OV BED/TM 0048/FL006/TP E55P/SK OVC006
- Report
- a routine report filed through BED
- Where
- over BED
- Time
- 00:48 UTC
- Height
- at 600 ft
- Aircraft
- E55P
- Sky
- overcast from 600 ft
13 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 12 forecast points nearest it (BOS, BDL, ALB, AVP, PSB, AGC, CLE, CMH, CVG, IND, SPI, STL). 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 | 310° at 9 kt | +4 kt | 13 °C | 116 kt | 7 h 47 min | 6:12 am CDT (11:12 UTC) |
| 6,500 ft | 310° at 14 kt | +7 kt | 13 °C | 113 kt | 7 h 59 min | 6:24 am CDT (11:24 UTC) |
| 8,500 ft | 310° at 16 kt | +10 kt | 9 °C | 110 kt | 8 h 12 min | 6:37 am CDT (11:37 UTC) |
| 10,500 ft | 300° at 15 kt | +10 kt | 6 °C | 110 kt | 8 h 12 min | 6:37 am CDT (11:37 UTC) |
| 12,500 ft | 300° at 15 kt | +11 kt | 3 °C | 109 kt | 8 h 17 min | 6:42 am CDT (11:42 UTC) |
| 14,500 ft | 290° at 18 kt | +14 kt | -2 °C | 106 kt | 8 h 31 min | 6:56 am CDT (11:56 UTC) |
| 16,500 ft | 290° at 20 kt | +16 kt | -6 °C | 104 kt | 8 h 40 min | 7:05 am CDT (12:05 UTC) |
| 18,000 ft FL180 | 290° at 22 kt | +18 kt | -9 °C | 102 kt | 8 h 51 min | 7:16 am CDT (12:16 UTC) |
| 24,000 ft FL240 | 290° at 25 kt | +21 kt | -21 °C | 99 kt | 9 h 07 min | 7:32 am CDT (12:32 UTC) |
| 30,000 ft FL300 | 290° at 34 kt | +27 kt | -35 °C | 93 kt | 9 h 42 min | 8:07 am CDT (13:07 UTC) |
| 34,000 ft FL340 | 280° at 45 kt | +39 kt | -42 °C | 81 kt | 11 h 08 min | 9:33 am CDT (14:33 UTC) |
| 39,000 ft FL390 | 280° at 43 kt | +37 kt | -49 °C | 83 kt | 10 h 52 min | 9:17 am CDT (14:17 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; 25 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° |
| BDL | used from 50 nm out; 14 nm from the line | 120/24 | 290/23 12° | 280/21 8° | 250/36 3° | 250/41 -11° | 230/48 -21° | 230/78 -32° | 230/96 -41° | 230/86 -52° |
| ALB | used from 99 nm out; 43 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° |
| AVP | used from 149 nm out; 51 nm from the line | 150/5 | 350/13 12° | 270/20 8° | 260/17 4° | 260/25 -11° | 240/31 -22° | 240/54 -35° | 230/61 -41° | 240/55 -49° |
| PSB | used from 297 nm out; 30 nm from the line | 360/13 13° | 330/14 7° | 300/11 3° | 290/12 -11° | 240/23 -23° | 270/25 -36° | 250/34 -40° | 250/45 -48° | |
| AGC | used from 396 nm out; 40 nm from the line | 350/14 | 330/20 11° | 340/18 8° | 330/17 3° | 340/22 -11° | 340/31 -22° | 330/33 -36° | 300/34 -41° | 300/35 -47° |
| CLE | used from 446 nm out; 46 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° |
| CMH | used from 495 nm out; 43 nm from the line | 330/15 | 340/22 14° | 340/24 9° | 340/23 4° | 340/35 -9° | 340/49 -20° | 340/58 -37° | 330/70 -42° | 340/55 -47° |
| CVG | used from 595 nm out; 64 nm from the line | 320/18 | 350/32 16° | 350/35 10° | 350/30 3° | 330/30 -7° | 340/44 -20° | 340/58 -35° | 330/72 -41° | 320/36 -49° |
| IND | used from 644 nm out; 41 nm from the line | 290/16 | 310/20 16° | 320/21 10° | 330/13 3° | 300/25 -7° | 320/32 -19° | 330/46 -34° | 320/61 -43° | 320/63 -50° |
| SPI | used from 793 nm out; 74 nm from the line | 220/21 | 250/23 16° | 260/27 9° | 270/14 6° | 270/23 -7° | 270/31 -19° | 270/28 -33° | 290/48 -42° | 300/55 -52° |
| STL | used from 842 nm out; 43 nm from the line | 250/24 | 250/24 16° | 260/23 9° | 270/16 6° | 260/25 -6° | 270/29 -19° | 290/34 -33° | 290/48 -41° | 290/54 -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 |
|---|---|---|---|---|---|---|---|
| BOS Boston, MA | departure | IFR Sky: a few clouds at 700 feet, a broken layer at 1,700 feet, overcast at 4,100 feet Weather: heavy rain, mist | from the east-northeast (060°) at 12 knots | 2.5 mi | 1,700 ft | 19 ft | 11:10 pm EDT (03:10 UTC) |
| CEF Springfield/Chicopee, MA | 69 nm out, 1 nm northeast of the line, tower | VFR Sky: scattered clouds at 500 feet, overcast at 3,300 feet Weather: rain | from the north (010°) at 9 knots | 7 mi | 3,300 ft | 241 ft | 02:55 UTC |
| POU Poughkeepsie, NY | 139 nm out, 24 nm south of the line, tower | IFR Sky: a broken layer at 600 feet, a broken layer at 1,000 feet, overcast at 2,100 feet Weather: mist | from the north (360°) at 5 knots | 5 mi | 600 ft | 163 ft | 03:01 UTC |
| IPT Williamsport, PA | 268 nm out, 20 nm south of the line, tower | marginal VFR Sky: overcast at 2,300 feet | calm | 10+ mi | 2,300 ft | 528 ft | 02:54 UTC |
| DUJ Dubois, PA | 357 nm out, 5 nm southwest of the line | IFR Sky: a broken layer at 700 feet, overcast at 2,300 feet | from the east-northeast (070°) at 4 knots | 10+ mi | 700 ft | 1,816 ft | 02:53 UTC |
| BVI Beaver Falls, PA | 436 nm out, 11 nm southeast of the line, tower | reported, no category | calm | none | 1,252 ft | 19:47 UTC | |
| CAK Akron, OH | 476 nm out, 10 nm north of the line, tower | marginal VFR Sky: scattered clouds at 800 feet, overcast at 1,600 feet Weather: light drizzle | from the northwest (320°) at 4 knots | 8 mi | 1,600 ft | 1,225 ft | 03:12 UTC |
| DAY Dayton, OH | 614 nm out, 13 nm south of the line, tower | marginal VFR Sky: overcast at 1,200 feet | from the west-northwest (290°) at 7 knots | 8 mi | 1,200 ft | 1,009 ft | 02:56 UTC |
| IND Indianapolis, IN | 713 nm out, 6 nm north of the line, tower | VFR | calm | 10+ mi | none | 796 ft | 02:54 UTC |
| HUF Terre Haute, IN | 763 nm out, 6 nm northeast of the line, tower | marginal VFR Weather: mist | calm | 3 mi | none | 589 ft | 03:00 UTC |
| GRE Greenville, IL | 862 nm out, 2 nm north of the line | no report just now | 540 ft | ||||
| CPS Cahokia/St Louis, IL | destination | VFR | calm | 10+ mi | none | 412 ft | 9:53 pm CDT (02:53 UTC) |
The highest airport on this list sits at 1,816 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At CPS when you get there the forecast at the estimated arrival, 6:12 am CDT (11:12 UTC)
Wind from the southwest at 10 knots, visibility more than 6 miles, a few clouds at 25,000 feet VFR
The whole forecast for CPS
- From Sun 7:00 pm CDT (00:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
- From Mon 3:00 am CDT (08:00 UTC): wind light and variable, visibility 3 miles, mist, a few clouds at 25,000 feet
- At times between Mon 3:00 am CDT (08:00 UTC) and 6:00 am CDT (11:00 UTC): visibility 1 mile, mist
- From Mon 6:00 am CDT (11:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, a few clouds at 25,000 feet
The forecast for BOS, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the southeast at 4 knots, visibility 4 miles, heavy rain, mist, scattered clouds at 2,200 feet, a broken layer at 2,800 feet and more above
- From Sun 10:00 pm EDT (02:00 UTC): wind from the east-southeast at 5 knots, visibility 3 miles, light rain, mist, overcast at 1,000 feet
- From Sun 11:00 pm EDT (03:00 UTC): wind from the east at 6 knots, visibility 2 miles, light rain, mist, overcast at 800 feet
- From Mon 2:00 am EDT (06:00 UTC): wind from the northeast at 8 knots, visibility 2 miles, light rain showers, mist, overcast at 300 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north at 7 knots, visibility 3 miles, mist, a broken layer at 800 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
- From Mon 11:00 pm EDT (03:00 UTC): wind from the north-northeast at 5 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 14 nm from the route, at the departure end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
- 6/7153 North Sicuate, RI, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 24 nm from the route, at the departure end · drones kept away from a public gathering · until 12 October · ZBW
- 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 416 nm along the route · a VIP movement · today · ZOB
- 6/8888 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 20 nm from the route, 436 nm along the route · security · today · ZOB
- 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, 436 nm along the route · a VIP movement · today · ZOB
Daylight
Sunset at BOS 6:07 pm EDT (22:07 UTC), at CPS 6:27 pm CDT (23:27 UTC) (civil twilight ends 6:53 pm CDT (23:53 UTC)). At 120 knots the arrival at CPS is before sunrise there (7:06 am CDT (12:06 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
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, St. Louis Downtown Airport.