Oakland San Francisco Bay Airport to Groton-New London Airport OAK → GON
2,301 nautical miles (2,648 statute miles) east on a straight line, true course 068°, about 054° magnetic at the departure end (variation 14E). At 120 knots that is 13 h 37 min at the quickest height in today's winds (39,000 ft, a 49-knot tailwind), arriving about 3:50 pm EDT (19:50 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: 1 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: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 110 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 239 to 727 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 239 to 757 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 339 to 877 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 528 to 927 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 638 to 817 nm out.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 638 to 717 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 917 to 1504 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 1066 to 1076 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 638 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1983 to 2182 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 269 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft. Over the last 30 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 OAK.
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 21 forecast points nearest it (SFO, SAC, RNO, BAM, ELY, SLC, RKS, DEN, BFF, ONL, OMA, MCW, DBQ, JOT, MKG, FWA, CLE, BUF, AVP, JFK, 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 | 240° at 14 kt | −12 kt | 132 kt | 17 h 26 min | 7:39 pm EDT (23:39 UTC) | |
| 5,500 ft | 240° at 11 kt | −11 kt | 20 °C | 131 kt | 17 h 34 min | 7:47 pm EDT (23:47 UTC) |
| 7,500 ft | 240° at 14 kt | −13 kt | 10 °C | 133 kt | 17 h 18 min | 7:31 pm EDT (23:31 UTC) |
| 9,500 ft | 240° at 15 kt | −14 kt | 7 °C | 134 kt | 17 h 10 min | 7:23 pm EDT (23:23 UTC) |
| 11,500 ft | 240° at 16 kt | −16 kt | 3 °C | 136 kt | 16 h 55 min | 7:08 pm EDT (23:08 UTC) |
| 13,500 ft | 240° at 18 kt | −17 kt | -1 °C | 137 kt | 16 h 48 min | 7:01 pm EDT (23:01 UTC) |
| 15,500 ft | 240° at 20 kt | −20 kt | -5 °C | 140 kt | 16 h 26 min | 6:39 pm EDT (22:39 UTC) |
| 17,500 ft | 240° at 22 kt | −22 kt | -10 °C | 142 kt | 16 h 12 min | 6:25 pm EDT (22:25 UTC) |
| 18,000 ft FL180 | 240° at 22 kt | −23 kt | -11 °C | 143 kt | 16 h 05 min | 6:18 pm EDT (22:18 UTC) |
| 24,000 ft FL240 | 240° at 27 kt | −27 kt | -22 °C | 147 kt | 15 h 39 min | 5:52 pm EDT (21:52 UTC) |
| 30,000 ft FL300 | 250° at 35 kt | −35 kt | -33 °C | 155 kt | 14 h 51 min | 5:04 pm EDT (21:04 UTC) |
| 34,000 ft FL340 | 250° at 44 kt | −45 kt | -39 °C | 165 kt | 13 h 57 min | 4:10 pm EDT (20:10 UTC) |
| 39,000 ft FL390 | 260° at 47 kt | −49 kt | -47 °C | 169 kt | 13 h 37 min | 3:50 pm EDT (19:50 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SFO | used from 0 nm out; 34 nm from the line | 120/13 | 090/14 5° | 040/14 -1° | 350/17 -5° | 360/42 -14° | 360/64 -23° | 350/38 -32° | 300/19 -37° | 250/18 -44° |
| SAC | used from 50 nm out; 41 nm from the line | 110/6 | L/V 4° | 010/11 -2° | 350/11 -7° | 340/24 -16° | 360/44 -23° | 330/24 -30° | 270/21 -35° | 230/23 -43° |
| RNO | used from 100 nm out; 63 nm from the line | 010/9 | 320/10 -2° | 210/23 -9° | 210/34 -19° | 220/36 -25° | 230/31 -29° | 230/41 -33° | 230/38 -42° | |
| BAM | used from 249 nm out; 80 nm from the line | 310/7 0° | 270/19 -7° | 200/38 -17° | 190/49 -28° | 220/69 -29° | 220/63 -33° | 230/48 -41° | ||
| ELY | used from 299 nm out; 43 nm from the line | 200/39 3° | 210/27 -2° | 210/45 -15° | 220/56 -24° | 210/60 -28° | 210/63 -34° | 220/61 -43° | ||
| SLC | used from 448 nm out; 44 nm from the line | 200/5 | 230/8 2° | 220/20 -2° | 210/40 -12° | 190/53 -25° | 210/62 -30° | 220/69 -34° | 220/64 -43° | |
| RKS | used from 598 nm out; 47 nm from the line | 200/41 | 220/44 1° | 220/35 -11° | 220/46 -24° | 210/53 -27° | 220/62 -35° | 230/61 -44° | ||
| DEN | used from 747 nm out; 115 nm from the line | 240/21 14° | 250/44 6° | 220/49 -8° | 220/49 -21° | 230/54 -30° | 240/57 -35° | 240/49 -45° | ||
| BFF | used from 797 nm out; 71 nm from the line | 180/28 | 220/33 15° | 210/31 7° | 230/32 -9° | 220/41 -21° | 220/40 -33° | 240/47 -36° | 250/54 -46° | |
| ONL | used from 996 nm out; 93 nm from the line | 210/31 20° | 230/27 13° | 230/18 7° | 220/19 -8° | 240/26 -20° | 250/44 -35° | 270/52 -39° | 260/57 -47° | |
| OMA | used from 1196 nm out; 70 nm from the line | 220/47 | 240/33 19° | 250/18 11° | 230/17 6° | 260/29 -8° | 250/33 -19° | 250/51 -33° | 260/61 -40° | 270/62 -49° |
| MCW | used from 1295 nm out; 47 nm from the line | 220/44 | 250/30 17° | 230/14 12° | 240/17 6° | 250/22 -8° | 270/29 -20° | 250/34 -34° | 260/52 -43° | 260/59 -51° |
| DBQ | used from 1395 nm out; 49 nm from the line | 230/33 | 250/30 16° | 280/15 9° | 260/15 5° | 260/21 -7° | 260/24 -20° | 250/37 -33° | 270/42 -43° | 280/63 -52° |
| JOT | used from 1544 nm out; 68 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° |
| MKG | used from 1594 nm out; 55 nm from the line | 260/22 | 290/16 15° | 300/11 10° | 290/5 3° | 300/26 -9° | 300/32 -20° | 320/48 -36° | 320/61 -45° | 310/74 -53° |
| FWA | used from 1743 nm out; 110 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 1793 nm out; 75 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 1943 nm out; 53 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° |
| AVP | used from 2042 nm out; 77 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° |
| JFK | used from 2192 nm out; 58 nm from the line | 250/18 | 250/23 14° | 240/33 9° | 240/33 4° | 240/38 -10° | 240/45 -21° | 230/86 -32° | 230/102 -40° | 230/84 -51° |
| BDL | used from 2242 nm out; 30 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° |
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 |
|---|---|---|---|---|---|---|---|
| OAK Oakland, CA | departure | no report just now | 9 ft | ||||
| SCK Stockton, CA | 50 nm out, 8 nm south of the line, tower | no report just now | 32 ft | ||||
| TMT Austin, NV | 259 nm out, 18 nm northwest of the line | no report just now | 5,735 ft | ||||
| PVU Provo, UT | 508 nm out, 12 nm southeast of the line, tower | no report just now | 4,496 ft | ||||
| BFF Scottsbluff, NE | 897 nm out, 8 nm northwest of the line | no report just now | 3,967 ft | ||||
| TIF Thedford, NE | 1026 nm out, 8 nm south of the line | no report just now | 2,925 ft | ||||
| SUX Sioux City, IA | 1215 nm out, 2 nm south of the line, tower | no report just now | 1,098 ft | ||||
| ALO Waterloo, IA | 1395 nm out, 4 nm southwest of the line, tower | no report just now | 873 ft | ||||
| DET Detroit, MI | 1803 nm out, 5 nm southeast of the line, tower | no report just now | 624 ft | ||||
| ERI Erie, PA | 1933 nm out, 12 nm south of the line, tower | no report just now | 732 ft | ||||
| OXC Oxford, CT | 2252 nm out, 1 nm south of the line, tower | no report just now | 730 ft | ||||
| GON Groton (New London), CT | destination | no report just now | 9 ft |
The highest airport on this list sits at 5,735 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GON when you get there the forecast at the estimated arrival, 3:50 pm EDT (19:50 UTC)
GON has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 22 nm from the route, at the departure end · drones kept away from a public gathering · until 12 October · ZOA
Daylight
Sunset at OAK 6:35 pm PDT (01:35 UTC), at GON 6:12 pm EDT (22:12 UTC) (civil twilight ends 6:40 pm EDT (22:40 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: Oakland San Francisco Bay Airport, Groton-New London Airport.