Oakland San Francisco Bay Airport to John Glenn Columbus International OAK → CMH
1,829 nautical miles (2,105 statute miles) east on a straight line, true course 073°, about 059° magnetic at the departure end (variation 14E). At 120 knots that is 10 h 13 min at the quickest height in today's winds (34,000 ft, a 59-knot tailwind), arriving about 9:52 pm EDT (01:52 UTC), after sunset at the destination. Right now OAK is VFR, wind from the east-northeast (070°) at 4 knots; CMH is marginal VFR, wind from the south-southwest (210°) at 5 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: 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
- SIGMET W29W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the west at 45 knots, until 9:55 am PDT (16:55 UTC). Near the route, 590 nm along the route.
as issued
WSUS33 KKCI 121455 MKCW WST 121455 CONVECTIVE SIGMET 29W VALID UNTIL 1655Z WY UT FROM 20SE MLD-50WSW OCS-10SSE MTU-40E BVL-20SE MLD DMSHG AREA TS MOV FROM 26045KT. TOPS TO FL280.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 240 nm of the route.
- AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 90 to 160 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 210 to 720 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 240 to 770 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 550 to 919 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 550 to 660 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 670 to 839 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). Near the route, 869 nm along the route.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, 989 nm along 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 1069 to 1409 nm out.
- AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist). Over the last 50 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
- BCS3 at 19,000 ft, 13 nm southeast, 6:32 am PDT (13:32 UTC): moderate rime icing, -15 °C. 470 nm along the route, 13 nm southeast of the line.
as filed, and in English
DTA UA /OV DTA038010/TM 1332/FL190/TP BCS3/TA M15/IC MOD RIME 140-190 TOP 200/ZLC
- Report
- a routine report filed through DTA
- Where
- 10 nm northeast (038°) of DTA
- Time
- 13:32 UTC
- Height
- at 19,000 ft
- Aircraft
- BCS3
- Temperature
- −15 °C
- Icing
- moderate rime from 14,000 ft to 19,000 ft top 200/ZLC
- C56X at 20,000 ft, 19 nm north, 7:25 am PDT (14:25 UTC): moderate turbulence above 20,000 ft. 480 nm along the route, 19 nm north of the line.
as filed, and in English
PVU UA /OV FFU205028/TM 1425/FL200/TP C56X/TB MOD 200 /ZLC
- Report
- a routine report filed through PVU
- Where
- 28 nm southwest (205°) of FFU
- Time
- 14:25 UTC
- Height
- at 20,000 ft
- Aircraft
- C56X
- Turbulence
- moderate at 20,000 ft zlc
- A319 at 19,000 ft, 37 nm north, 6:53 am PDT (13:53 UTC): moderate turbulence, moderate rime icing, -12 °C, wind 234° at 38 knots, remarks: during the descent. 500 nm along the route, 37 nm north of the line.
as filed, and in English
SLC UA /OV FFU/TM 1353/FL190/TP A319/TA M12/WV 234038/TB MOD TURB/IC MOD RIME/RM DURD
- Report
- a routine report filed through SLC
- Where
- over FFU
- Time
- 13:53 UTC
- Height
- at 19,000 ft
- Aircraft
- A319
- Temperature
- −12 °C
- Wind
- from 234° at 38 knots
- Turbulence
- moderate turbulence
- Icing
- moderate rime
- Remarks
- during the descent
- CRJ7 at 16,000 ft, 12 nm northwest, 6:13 am PDT (13:13 UTC): moderate rime icing from 15,000 ft to 19,000 ft, -13 °C. 500 nm along the route, 12 nm northwest of the line.
as filed, and in English
PVU UA /OV FFU165026/TM 1313/FL160/TP CRJ7/SK TOPS 196/TA M13/IC MOD RIME 150-190/ZLC
- Report
- a routine report filed through PVU
- Where
- 26 nm south (165°) of FFU
- Time
- 13:13 UTC
- Height
- at 16,000 ft
- Aircraft
- CRJ7
- Sky
- tops 19,600 ft
- Temperature
- −13 °C
- Icing
- moderate rime 150-190/ZLC
- PC12 at 17,000 ft, 12 nm north, 5:40 am PDT (12:40 UTC): moderate rime icing, -13 °C. 510 nm along the route, 12 nm north of the line.
as filed, and in English
PVU UA /OV FFU134026/TM 1240/FL170/TP PC12/TA M13 /IC MOD RIME/ZLC
- Report
- a routine report filed through PVU
- Where
- 26 nm southeast (134°) of FFU
- Time
- 12:40 UTC
- Height
- at 17,000 ft
- Aircraft
- PC12
- Temperature
- −13 °C
- Icing
- moderate rime/zlc
- B738 descending, 3 nm south, 6:01 am PDT (13:01 UTC): moderate turbulence from 11,000 ft to 20,000 ft. 810 nm along the route, 3 nm south of the line.
as filed, and in English
DEN UA /OV 40NW DEN/TM 1301/FLDURD/TP B738/TB MOD 200-110
- Report
- a routine report filed through DEN
- Where
- 40NW den
- Time
- 13:01 UTC
- Height
- during the descent
- Aircraft
- B738
- Turbulence
- moderate from 20,000 ft to 11,000 ft
- B737 at 21,000 ft, 18 nm south, 7:05 am PDT (14:05 UTC): moderate turbulence, remarks: mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent. 820 nm along the route, 18 nm south of the line.
as filed, and in English
DEN UA /OV DEN310025/TM 1405/FL210/TP B737/TB MOD TURB/RM MTN WAVE +30KTS 250-150 DURD
- Report
- a routine report filed through DEN
- Where
- 25 nm northwest (310°) of DEN
- Time
- 14:05 UTC
- Height
- at 21,000 ft
- Aircraft
- B737
- Turbulence
- moderate turbulence
- Remarks
- mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent
- BE20 at 12,500 ft, 47 nm north, 7:28 am PDT (14:28 UTC): moderate turbulence from 9,000 ft to 12,000 ft, remarks: during the climb zdvwc. 830 nm along the route, 47 nm north of the line.
as filed, and in English
CYS UA /OV CYS/TM 1428/FL125/TP BE20/TB MOD 090-120/RM DURC -ZDVWC
- Report
- a routine report filed through CYS
- Where
- over CYS
- Time
- 14:28 UTC
- Height
- at 12,500 ft
- Aircraft
- BE20
- Turbulence
- moderate from 9,000 ft to 12,000 ft
- Remarks
- during the climb zdvwc
- B38M at 12,000 ft, 43 nm south, 7:07 am PDT (14:07 UTC): moderate turbulence, remarks: from 11,000 ft to 12,000 ft. 849 nm along the route, 43 nm south of the line.
as filed, and in English
DEN UA /OV DEN090025/TM 1407/FL120/TP B38M/TB MOD/RM 110-120
- Report
- a routine report filed through DEN
- Where
- 25 nm east (090°) of DEN
- Time
- 14:07 UTC
- Height
- at 12,000 ft
- Aircraft
- B38M
- Turbulence
- moderate
- Remarks
- from 11,000 ft to 12,000 ft
- B738 descending, 22 nm south, 8:20 am PDT (15:20 UTC): moderate turbulence from 12,000 ft to 18,000 ft. 859 nm along the route, 22 nm south of the line.
as filed, and in English
DEN UA /OV 30NE DEN/TM 1520/FLDURD/TP B738/TB MOD 180-120
- Report
- a routine report filed through DEN
- Where
- 30NE den
- Time
- 15:20 UTC
- Height
- during the descent
- Aircraft
- B738
- Turbulence
- moderate from 18,000 ft to 12,000 ft
- B789 at 39,000 ft, 44 nm west, 6:37 am PDT (13:37 UTC): light to moderate turbulence, remarks: entered by zoa fdcs. At the departure end, 44 nm west of the line.
as filed, and in English
STS UA /OV PYE218013/TM 1337/FL390/TP B789/TB LGT-MOD/RM ENTERED BY ZOA FDCS
- Report
- a routine report filed through STS
- Where
- 13 nm southwest (218°) of PYE
- Time
- 13:37 UTC
- Height
- at 39,000 ft
- Aircraft
- B789
- Turbulence
- light to moderate
- Remarks
- entered by zoa fdcs
- B739 at 36,000 ft, 4 nm south, 7:39 am PDT (14:39 UTC): no turbulence. At the departure end, 4 nm south of the line.
as filed, and in English
IND UA /OV SCK/TM 1439/FL360/TP B739/TB NEG
- Report
- a routine report filed through IND
- Where
- over SCK
- Time
- 14:39 UTC
- Height
- at 36,000 ft
- Aircraft
- B739
- Turbulence
- none
- S22T at 1,000 ft, 23 nm south, 8:28 am PDT (15:28 UTC): remarks: bases 3,000 ft. At the departure end, 23 nm south of the line.
as filed, and in English
MOD UA /OV KMOD16002/TM 1528/FL010/TP S22T/RM BASES 030
- Report
- a routine report filed through MOD
- Where
- KMOD16002
- Time
- 15:28 UTC
- Height
- at 1,000 ft
- Aircraft
- S22T
- Remarks
- bases 3,000 ft
- PA46 at 1,100 ft, 23 nm south, 7:37 am PDT (14:37 UTC): a broken layer above 2,500 ft, remarks: bases 2,500 ft. At the departure end, 23 nm south of the line.
as filed, and in English
MOD UA /OV KMOD18001/TM 1437/FL011/TP PA46/SK BKN025/RM BASES 025
- Report
- a routine report filed through MOD
- Where
- KMOD18001
- Time
- 14:37 UTC
- Height
- at 1,100 ft
- Aircraft
- PA46
- Sky
- a broken layer from 2,500 ft
- Remarks
- bases 2,500 ft
16 more routine reports are on the map.
Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 18 forecast points nearest it (SFO, SAC, RNO, BIH, ELY, SLC, GJT, DEN, GLD, GRI, OMA, DSM, BRL, SPI, JOT, IND, FWA, CMH). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 250° at 18 kt | −16 kt | 19 °C | 136 kt | 13 h 27 min | 1:06 am EDT (05:06 UTC) |
| 7,500 ft | 230° at 18 kt | −15 kt | 10 °C | 135 kt | 13 h 33 min | 1:12 am EDT (05:12 UTC) |
| 9,500 ft | 240° at 20 kt | −17 kt | 6 °C | 137 kt | 13 h 21 min | 1:00 am EDT (05:00 UTC) |
| 11,500 ft | 240° at 23 kt | −20 kt | 2 °C | 140 kt | 13 h 04 min | 12:43 am EDT (04:43 UTC) |
| 13,500 ft | 240° at 25 kt | −23 kt | -2 °C | 143 kt | 12 h 47 min | 12:26 am EDT (04:26 UTC) |
| 15,500 ft | 240° at 27 kt | −25 kt | -6 °C | 145 kt | 12 h 37 min | 12:16 am EDT (04:16 UTC) |
| 17,500 ft | 240° at 29 kt | −26 kt | -10 °C | 146 kt | 12 h 32 min | 12:11 am EDT (04:11 UTC) |
| 18,000 ft FL180 | 240° at 29 kt | −27 kt | -11 °C | 147 kt | 12 h 27 min | 12:06 am EDT (04:06 UTC) |
| 24,000 ft FL240 | 240° at 38 kt | −36 kt | -22 °C | 156 kt | 11 h 43 min | 11:22 pm EDT (03:22 UTC) |
| 30,000 ft FL300 | 250° at 53 kt | −52 kt | -32 °C | 172 kt | 10 h 38 min | 10:17 pm EDT (02:17 UTC) |
| 34,000 ft FL340 | 250° at 58 kt | −59 kt | -38 °C | 179 kt | 10 h 13 min | 9:52 pm EDT (01:52 UTC) |
| 39,000 ft FL390 | 250° at 56 kt | −57 kt | -46 °C | 177 kt | 10 h 20 min | 9:59 pm EDT (01:59 UTC) |
Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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 | 010/6 | 360/13 5° | 360/17 -3° | 350/39 -2° | 350/56 -11° | 350/57 -24° | 350/59 -40° | 340/50 -46° | 320/30 -47° |
| SAC | used from 50 nm out; 46 nm from the line | L/V | 320/8 4° | 330/12 -3° | 350/25 -6° | 350/63 -12° | 340/65 -24° | 340/60 -40° | 340/45 -45° | 290/24 -45° |
| RNO | used from 100 nm out; 73 nm from the line | L/V | 280/12 -4° | 260/15 -10° | 340/47 -17° | 340/75 -25° | 330/47 -37° | 280/20 -40° | 240/24 -42° | |
| BIH | used from 150 nm out; 69 nm from the line | L/V | 340/7 -3° | L/V -8° | 250/15 -17° | 330/30 -24° | 270/23 -34° | 230/35 -39° | 230/39 -44° | |
| ELY | used from 250 nm out; 85 nm from the line | 210/17 0° | 220/30 -6° | 190/50 -19° | 200/56 -28° | 210/76 -32° | 210/63 -37° | 210/59 -43° | ||
| SLC | used from 450 nm out; 74 nm from the line | 180/7 | 200/22 2° | 200/30 -4° | 210/47 -16° | 200/73 -27° | 210/81 -32° | 210/71 -37° | 210/55 -43° | |
| GJT | used from 550 nm out; 92 nm from the line | 190/30 6° | 200/35 0° | 220/50 -13° | 220/69 -22° | 220/81 -30° | 230/84 -39° | 230/88 -47° | ||
| DEN | used from 750 nm out; 64 nm from the line | 230/7 11° | 230/13 4° | 230/40 -9° | 230/48 -20° | 240/66 -32° | 240/88 -38° | 230/100 -47° | ||
| GLD | used from 899 nm out; 84 nm from the line | 240/22 | 250/24 13° | 250/39 6° | 230/42 -8° | 230/55 -21° | 240/87 -30° | 240/96 -36° | 250/93 -48° | |
| GRI | used from 1049 nm out; 51 nm from the line | 270/26 19° | 230/33 13° | 230/39 8° | 230/43 -9° | 240/55 -21° | 250/76 -28° | 260/84 -36° | 260/68 -47° | |
| OMA | used from 1199 nm out; 34 nm from the line | 210/23 | 240/34 20° | 230/40 14° | 220/43 7° | 240/38 -8° | 250/47 -21° | 270/70 -29° | 270/79 -36° | 270/68 -48° |
| DSM | used from 1299 nm out; 49 nm from the line | 230/34 | 230/32 20° | 220/33 12° | 240/35 5° | 250/39 -7° | 250/43 -21° | 280/61 -31° | 280/73 -37° | 280/67 -47° |
| BRL | used from 1399 nm out; 27 nm from the line | 240/28 | 240/25 18° | 250/26 12° | 260/29 5° | 260/24 -8° | 270/36 -20° | 280/57 -33° | 290/65 -37° | 290/54 -46° |
| SPI | used from 1499 nm out; 44 nm from the line | 230/24 | 240/21 15° | 260/11 12° | 280/19 6° | 270/23 -8° | 280/34 -20° | 290/55 -33° | 290/62 -37° | 290/55 -47° |
| JOT | used from 1549 nm out; 62 nm from the line | 230/30 | 250/26 16° | 270/27 11° | 280/34 5° | 290/32 -8° | 280/37 -21° | 280/40 -36° | 290/46 -37° | 290/56 -47° |
| IND | used from 1599 nm out; 63 nm from the line | 260/18 | 250/20 15° | 260/26 9° | 290/28 5° | 290/30 -7° | 280/40 -20° | 280/46 -35° | 290/53 -38° | 300/58 -47° |
| FWA | used from 1699 nm out; 45 nm from the line | 250/18 | 260/22 15° | 260/27 7° | 290/26 6° | 290/28 -8° | 290/39 -20° | 280/36 -37° | 290/54 -39° | 310/60 -48° |
| CMH | used from 1749 nm out; 55 nm from the line | 270/15 | 280/20 14° | 280/21 9° | 290/26 4° | 290/29 -7° | 290/38 -20° | 280/44 -35° | 280/48 -42° | 310/61 -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 |
|---|---|---|---|---|---|---|---|
| OAK Oakland, CA | departure | VFR Sky: a few clouds at 1,600 feet | from the east-northeast (070°) at 4 knots | 10+ mi | none | 9 ft | 7:53 am PDT (14:53 UTC) |
| SCK Stockton, CA | 50 nm out, 4 nm south of the line, tower | VFR | calm | 9 mi | none | 32 ft | 14:55 UTC |
| ELY Ely, NV | 360 nm out, 5 nm north of the line | VFR Sky: a broken layer at 4,500 feet, overcast at 6,500 feet | from the west-southwest (240°) at 8 knots | 10+ mi | 4,500 ft | 6,259 ft | 14:53 UTC |
| DTA Delta, UT | 470 nm out, 12 nm south of the line | VFR | from the north-northeast (030°) at 7 knots, gusting to 18 | 10+ mi | none | 4,759 ft | 17:35 UTC |
| EEO Meeker, CO | 680 nm out, 7 nm southeast of the line | VFR Sky: scattered clouds at 5,500 feet | from the south-southwest (200°) at 6 knots | 10+ mi | none | 6,415 ft | 14:53 UTC |
| FNL Fort Collins/Loveland, CO | 820 nm out, 4 nm northwest of the line, tower | VFR | from the south-southeast (160°) at 7 knots | 10+ mi | none | 5,020 ft | 14:56 UTC |
| EAR Kearney, NE | 1089 nm out, 2 nm northeast of the line | VFR | from the southwest (220°) at 13 knots, gusting to 20 | 10+ mi | none | 2,131 ft | 14:56 UTC |
| LNK Lincoln, NE | 1189 nm out, 8 nm northeast of the line, tower | VFR | from the south (190°) at 14 knots, gusting to 25 | 10+ mi | none | 1,218 ft | 14:54 UTC |
| TVK Centerville, IA | 1369 nm out, 1 nm south of the line | VFR | from the south-southwest (200°) at 11 knots, gusting to 17 | 9 mi | none | 1,023 ft | 15:15 UTC |
| LAF Lafayette, IN | 1639 nm out, 3 nm east of the line, tower | VFR | from the southwest (220°) at 8 knots | 10+ mi | none | 605 ft | 14:54 UTC |
| MIE Muncie, IN | 1709 nm out, 4 nm east of the line, tower | VFR | from the southwest (220°) at 11 knots | 10+ mi | none | 937 ft | 14:53 UTC |
| CMH Columbus, OH | destination | marginal VFR Sky: overcast at 1,000 feet | from the south-southwest (210°) at 5 knots | 8 mi | 1,000 ft | 815 ft | 10:51 am EDT (14:51 UTC) |
The highest airport on this list sits at 6,415 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At CMH when you get there the forecast at the estimated arrival, 9:52 pm EDT (01:52 UTC)
Wind from the south at 5 knots, visibility more than 6 miles, a few clouds at 10,000 feet, scattered clouds at 25,000 feet VFR
The whole forecast for CMH
- From Mon 11:00 am EDT (15:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, overcast at 800 feet
- At times between Mon 11:00 am EDT (15:00 UTC) and 12:00 pm EDT (16:00 UTC): overcast at 400 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, a few clouds at 10,000 feet, scattered clouds at 25,000 feet
The forecast for OAK, the departure
- From Mon 5:00 am PDT (12:00 UTC): wind from the east at 5 knots, visibility more than 6 miles, a few clouds at 2,000 feet
- From Mon 11:00 am PDT (18:00 UTC): wind from the west at 8 knots, visibility more than 6 miles, clear skies
Temporary flight restrictions on the line or within 25 nm of it
No temporary flight restriction on or near this route right now.
Daylight
Sunset at OAK 6:34 pm PDT (01:34 UTC), at CMH 6:56 pm EDT (22:56 UTC) (civil twilight ends 7:24 pm EDT (23:24 UTC)). At 120 knots the arrival at CMH is after sunset there (6:56 pm EDT (22:56 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, John Glenn Columbus International.
