San Diego International to General Edward Lawrence Logan International SAN → BOS
2,244 nautical miles (2,582 statute miles) northeast on a straight line, true course 061°, about 050° magnetic at the departure end (variation 11E). At 120 knots that is 12 h 32 min at the quickest height in today's winds (34,000 ft, a 59-knot tailwind), arriving about 3:35 pm EDT (19:35 UTC). 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: 3,623 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 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the first 728 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 209 to 379 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 259 to 768 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 289 to 329 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 648 to 678 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Near the route, 738 nm along the route.
- 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 758 to 1336 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 728 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1885 to 2144 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 309 nm of the route.
- AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the route from 2134 to 2144 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft. Over the last 80 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 SAN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 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 19 forecast points nearest it (SAN, BLH, PRC, FMN, ALS, PUB, GCK, SLN, MKC, DSM, BRL, JOT, 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 | 230° at 15 kt | −14 kt | 134 kt | 16 h 45 min | 7:48 pm EDT (23:48 UTC) | |
| 5,500 ft | 240° at 17 kt | −18 kt | 21 °C | 138 kt | 16 h 16 min | 7:19 pm EDT (23:19 UTC) |
| 7,500 ft | 240° at 17 kt | −18 kt | 11 °C | 138 kt | 16 h 16 min | 7:19 pm EDT (23:19 UTC) |
| 9,500 ft | 250° at 15 kt | −16 kt | 8 °C | 136 kt | 16 h 30 min | 7:33 pm EDT (23:33 UTC) |
| 11,500 ft | 240° at 17 kt | −18 kt | 4 °C | 138 kt | 16 h 16 min | 7:19 pm EDT (23:19 UTC) |
| 13,500 ft | 240° at 20 kt | −21 kt | 0 °C | 141 kt | 15 h 55 min | 6:58 pm EDT (22:58 UTC) |
| 15,500 ft | 240° at 24 kt | −26 kt | -4 °C | 146 kt | 15 h 22 min | 6:25 pm EDT (22:25 UTC) |
| 17,500 ft | 240° at 28 kt | −30 kt | -8 °C | 150 kt | 14 h 58 min | 6:01 pm EDT (22:01 UTC) |
| 18,000 ft FL180 | 240° at 29 kt | −31 kt | -9 °C | 151 kt | 14 h 52 min | 5:55 pm EDT (21:55 UTC) |
| 24,000 ft FL240 | 240° at 36 kt | −37 kt | -20 °C | 157 kt | 14 h 18 min | 5:21 pm EDT (21:21 UTC) |
| 30,000 ft FL300 | 250° at 48 kt | −50 kt | -32 °C | 170 kt | 13 h 12 min | 4:15 pm EDT (20:15 UTC) |
| 34,000 ft FL340 | 250° at 57 kt | −59 kt | -39 °C | 179 kt | 12 h 32 min | 3:35 pm EDT (19:35 UTC) |
| 39,000 ft FL390 | 260° at 52 kt | −54 kt | -48 °C | 174 kt | 12 h 54 min | 3:57 pm EDT (19:57 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SAN | used from 0 nm out; 25 nm from the line | 200/11 | 200/23 7° | 210/27 4° | 210/31 -3° | 220/56 -10° | 220/56 -19° | 220/52 -30° | 220/64 -37° | 220/67 -44° |
| BLH | used from 50 nm out; 61 nm from the line | 210/13 | 200/21 11° | 200/22 5° | 210/25 -1° | 210/51 -10° | 220/61 -20° | 220/81 -29° | 220/92 -34° | 220/79 -45° |
| PRC | used from 199 nm out; 41 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° | ||
| FMN | used from 399 nm out; 82 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° | ||
| ALS | used from 549 nm out; 52 nm from the line | 230/37 4° | 220/54 -9° | 230/62 -22° | 240/77 -26° | 240/74 -33° | 230/59 -45° | |||
| PUB | used from 648 nm out; 50 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° | ||
| GCK | used from 798 nm out; 57 nm from the line | 220/48 21° | 230/37 14° | 250/30 8° | 230/37 -6° | 240/37 -20° | 240/69 -28° | 250/67 -37° | 260/58 -48° | |
| SLN | used from 947 nm out; 57 nm from the line | 210/53 | 230/41 20° | 240/26 14° | 230/16 8° | 240/25 -7° | 240/35 -19° | 250/61 -30° | 260/65 -38° | 260/56 -49° |
| MKC | used from 1097 nm out; 67 nm from the line | 220/44 | 250/28 18° | 250/18 13° | 240/12 6° | 280/24 -6° | 240/34 -18° | 260/47 -30° | 260/51 -40° | 270/58 -50° |
| DSM | used from 1197 nm out; 74 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° |
| BRL | used from 1247 nm out; 66 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° |
| JOT | used from 1396 nm out; 59 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° |
| FWA | used from 1546 nm out; 50 nm from the line | 300/17 | 320/20 16° | 330/20 10° | 340/15 3° | 310/27 -8° | 320/37 -20° | 330/52 -36° | 330/65 -43° | 330/60 -50° |
| CLE | used from 1695 nm out; 49 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° |
| BUF | used from 1845 nm out; 58 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° |
| SYR | used from 1945 nm out; 70 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° |
| ALB | used from 2044 nm out; 56 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° |
| BDL | used from 2144 nm out; 26 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° |
| BOS | used from 2194 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° |
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 |
|---|---|---|---|---|---|---|---|
| SAN San Diego, CA | departure | no report just now | 16 ft | ||||
| RNM Ramona, CA | 20 nm out, 10 nm northwest of the line, tower | no report just now | 1,394 ft | ||||
| FLG Flagstaff, AZ | 309 nm out, 4 nm north of the line, tower | no report just now | 7,014 ft | ||||
| FMN Farmington, NM | 499 nm out, 22 nm north of the line, tower | no report just now | 5,506 ft | ||||
| LAA Lamar, CO | 778 nm out, 2 nm south of the line | no report just now | 3,705 ft | ||||
| CNK Concordia, KS | 1027 nm out, 7 nm north of the line | no report just now | 1,488 ft | ||||
| STJ St Joseph, MO | 1157 nm out, 15 nm south of the line, tower | no report just now | 826 ft | ||||
| SBN South Bend, IN | 1566 nm out, 15 nm northwest of the line, tower | no report just now | 798 ft | ||||
| TOL Toledo, OH | 1675 nm out, 11 nm south of the line, tower | no report just now | 683 ft | ||||
| ERI Erie, PA | 1835 nm out, 1 nm northeast of the line, tower | no report just now | 732 ft | ||||
| BGM Binghamton, NY | 2025 nm out, 6 nm south of the line, tower | no report just now | 1,635 ft | ||||
| BOS Boston, MA | destination | no report just now | 19 ft |
The highest airport on this list sits at 7,014 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, 3:35 pm EDT (19:35 UTC)
BOS has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/4812 El Centro, CA, Wednesday, July 15, 2026 through Tuesday, July 13, 2027 Local 10 nm from the route, at the departure end · security · until 13 July · ZLA
- 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 20 nm from the route, 1805 nm along the route · a VIP movement · today · ZOB
- 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 20 nm from the route, 1805 nm along the route · a VIP movement · today · ZOB
- 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 SAN 6:18 pm PDT (01:18 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
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: San Diego International, General Edward Lawrence Logan International.