Centennial Airport to Bellingham International APA → BLI
938 nautical miles (1,079 statute miles) northwest on a straight line, true course 312°, about 304° magnetic at the departure end (variation 8E). At 120 knots that is 7 h 27 min at the quickest height in today's winds (4,500 ft, a 6-knot tailwind), arriving about 3:32 am PDT (10:32 UTC), after sunset at the destination. Right now APA is VFR, wind from the south-southwest (200°) at 21 knots, gusting to 34; BLI is VFR, wind from the north (350°) 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
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 339 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 379 nm of the route.
- 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 20 to 349 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 50 to 80 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 170 to 549 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 170 to 708 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 200 to 249 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 329 to 569 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 459 to 649 nm out.
- AIRMET ZULU 2C: moderate icing up to 20,000 ft. Over the route from 559 to 848 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 190 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 APA.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent B407 at 10,000 ft, 45 nm south, 8:13 pm MDT (02:13 UTC): moderate to severe turbulence. At the departure end, 45 nm south of the line.
as filed, and in English
COS UUA /OV 10 W COS/TM 0213/FL100/TP B407/TB MDT-SEV
- Report
- an urgent report filed through COS
- Where
- 10 west cos
- Time
- 02:13 UTC
- Height
- at 10,000 ft
- Aircraft
- B407
- Turbulence
- mdt-sev
- B738 at 18,000 ft, 39 nm southwest, 8:02 pm MDT (02:02 UTC): moderate chop turbulence from 18,000 ft to 25,000 ft, remarks: during the climb ZDVWC-41. At the departure end, 39 nm southwest of the line.
as filed, and in English
COS UA /OV BRK270030/TM 0202/FL180/TP B738/TB MOD CHOP 180-250/RM DURC ZDVWC-41
- Report
- a routine report filed through COS
- Where
- 30 nm west (270°) of BRK
- Time
- 02:02 UTC
- Height
- at 18,000 ft
- Aircraft
- B738
- Turbulence
- moderate chop from 18,000 ft to 25,000 ft
- Remarks
- during the climb ZDVWC-41
- GLF4 at 25,000 ft, 19 nm southwest, 8:05 pm MDT (02:05 UTC): moderate turbulence, remarks: during the climb ZDVWC-05. At the departure end, 19 nm southwest of the line.
as filed, and in English
DEN UA /OV FQF250040/TM 0205/FL250/TP GLF4/TB MOD /RM DURC ZDVWC-05
- Report
- a routine report filed through DEN
- Where
- 40 nm west (250°) of FQF
- Time
- 02:05 UTC
- Height
- at 25,000 ft
- Aircraft
- GLF4
- Turbulence
- moderate
- Remarks
- during the climb ZDVWC-05
- B738 at 23,000 ft, 5 nm northeast, 8:34 pm MDT (02:34 UTC): moderate turbulence, remarks: during the climb ZDVWC-05. At the departure end, 5 nm northeast of the line.
as filed, and in English
DEN UA /OV DVV270030/TM 0234/FL230/TP B738/TB MOD /RM DURC ZDVWC-05
- Report
- a routine report filed through DEN
- Where
- 30 nm west (270°) of DVV
- Time
- 02:34 UTC
- Height
- at 23,000 ft
- Aircraft
- B738
- Turbulence
- moderate
- Remarks
- during the climb ZDVWC-05
- BCS1 at 24,000 ft, 5 nm northeast, 7:30 pm MDT (01:30 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the climb ZDVWC-05. At the departure end, 5 nm northeast of the line.
as filed, and in English
DEN UA /OV DVV270030/TM 0130/FL240/TP BCS1/TB MOD 220-240/RM DURC ZDVWC-05
- Report
- a routine report filed through DEN
- Where
- 30 nm west (270°) of DVV
- Time
- 01:30 UTC
- Height
- at 24,000 ft
- Aircraft
- BCS1
- Turbulence
- moderate from 22,000 ft to 24,000 ft
- Remarks
- during the climb ZDVWC-05
- CRJ2 at 19,000 ft, 21 nm northeast, 6:47 pm MDT (00:47 UTC): moderate chop turbulence, remarks: ZDVWC-13. 90 nm along the route, 21 nm northeast of the line.
as filed, and in English
EGE UA /OV RLG010052/TM 0047/FL190/TP CRJ2/TB COSN MOD CHOP/RM ZDVWC-13
- Report
- a routine report filed through EGE
- Where
- 52 nm north (010°) of RLG
- Time
- 00:47 UTC
- Height
- at 19,000 ft
- Aircraft
- CRJ2
- Turbulence
- cosn moderate chop
- Remarks
- ZDVWC-13
- E75L at 28,000 ft, 49 nm southwest, 7:31 pm MDT (01:31 UTC): moderate turbulence, remarks: ZDVWC-03. 100 nm along the route, 49 nm southwest of the line.
as filed, and in English
EEO UA /OV EKR085036/TM 0131/FL280/TP E75L/TB MOD/RM ZDVWC-03
- Report
- a routine report filed through EEO
- Where
- 36 nm east (085°) of EKR
- Time
- 01:31 UTC
- Height
- at 28,000 ft
- Aircraft
- E75L
- Turbulence
- moderate
- Remarks
- ZDVWC-03
- CL60 at 33,000 ft, 45 nm southeast, 8:35 pm MDT (02:35 UTC): remarks: mtw +/-100FT zdvwc. At the departure end, 45 nm southeast of the line.
as filed, and in English
COS UA /OV BRK080015/TM 0235/FL330/TP CL60/RM MTW +/-100FT ZDVWC
- Report
- a routine report filed through COS
- Where
- 15 nm east (080°) of BRK
- Time
- 02:35 UTC
- Height
- at 33,000 ft
- Aircraft
- CL60
- Remarks
- mtw +/-100FT zdvwc
- B737 descending, 17 nm northeast, 8:29 pm MDT (02:29 UTC): no turbulence up to 10,000 ft. At the departure end, 17 nm northeast of the line.
as filed, and in English
DEN UA /OV DEN/TM 0229/FLDURD/TP B737/TB NEG BLO 100
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 02:29 UTC
- Height
- during the descent
- Aircraft
- B737
- Turbulence
- no below 10,000 ft
- B737 descending, 17 nm northeast, 7:23 pm MDT (01:23 UTC): no turbulence up to 10,000 ft. At the departure end, 17 nm northeast of the line.
as filed, and in English
DEN UA /OV DEN/TM 0123/FLDURD/TP B737/TB NEG BLO 100
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 01:23 UTC
- Height
- during the descent
- Aircraft
- B737
- Turbulence
- no below 10,000 ft
- E55P at 38,000 ft, 29 nm south, 7:23 pm MDT (01:23 UTC): light chop turbulence, remarks: ZDVWC-05. At the departure end, 29 nm south of the line.
as filed, and in English
DEN UA /OV FQF200040/TM 0123/FL380/TP E55P/TB LGT CHOP/RM ZDVWC-05
- Report
- a routine report filed through DEN
- Where
- 40 nm south (200°) of FQF
- Time
- 01:23 UTC
- Height
- at 38,000 ft
- Aircraft
- E55P
- Turbulence
- light chop
- Remarks
- ZDVWC-05
- GLF6 at 40,000 ft, 26 nm south, 6:48 pm MDT (00:48 UTC): light to moderate chop turbulence, remarks: ZDVWC-46. At the departure end, 26 nm south of the line.
as filed, and in English
COS UA /OV COS340020/TM 0048/FL400/TP GLF6/TB LGT-MOD CHOP/RM ZDVWC-46
- Report
- a routine report filed through COS
- Where
- 20 nm north (340°) of COS
- Time
- 00:48 UTC
- Height
- at 40,000 ft
- Aircraft
- GLF6
- Turbulence
- light to moderate chop
- Remarks
- ZDVWC-46
- B737 at 25,000 ft, 43 nm south, 6:29 pm MDT (00:29 UTC): light rime icing, 0 °C, remarks: during the climb ZDVWC-29. At the departure end, 43 nm south of the line.
as filed, and in English
COS UA /OV BRK242015/TM 0029/FL250/TP B737/SK TOP280/TA 00/IC LGT RIME/RM DURC ZDVWC-29
- Report
- a routine report filed through COS
- Where
- 15 nm southwest (242°) of BRK
- Time
- 00:29 UTC
- Height
- at 25,000 ft
- Aircraft
- B737
- Sky
- TOP280
- Temperature
- 0 °C
- Icing
- light rime
- Remarks
- during the climb ZDVWC-29
- A321 descending, 17 nm northeast, 6:26 pm MDT (00:26 UTC): no turbulence up to 10,000 ft. At the departure end, 17 nm northeast of the line.
as filed, and in English
DEN UA /OV DEN/TM 0026/FLDURD/TP A321/TB NEG BLO 100
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 00:26 UTC
- Height
- during the descent
- Aircraft
- A321
- Turbulence
- no below 10,000 ft
7 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 9 forecast points nearest it (DEN, RKS, LND, PIH, DLN, LWS, GEG, YKM, SEA). 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 | 070° at 9 kt | −6 kt | -2 °C | 126 kt | 7 h 27 min | 3:32 am PDT (10:32 UTC) |
| 6,500 ft | 060° at 10 kt | −5 kt | -2 °C | 125 kt | 7 h 30 min | 3:35 am PDT (10:35 UTC) |
| 8,500 ft | 190° at 6 kt | −3 kt | -1 °C | 123 kt | 7 h 38 min | 3:43 am PDT (10:43 UTC) |
| 10,500 ft | 220° at 9 kt | 0 | -3 °C | 120 kt | 7 h 49 min | 3:54 am PDT (10:54 UTC) |
| 12,500 ft | 230° at 13 kt | +2 kt | -5 °C | 118 kt | 7 h 57 min | 4:02 am PDT (11:02 UTC) |
| 14,500 ft | 220° at 16 kt | 0 | -9 °C | 120 kt | 7 h 49 min | 3:54 am PDT (10:54 UTC) |
| 16,500 ft | 210° at 20 kt | −2 kt | -12 °C | 122 kt | 7 h 41 min | 3:46 am PDT (10:46 UTC) |
| 18,000 ft FL180 | 210° at 22 kt | −4 kt | -15 °C | 124 kt | 7 h 34 min | 3:39 am PDT (10:39 UTC) |
| 24,000 ft FL240 | 210° at 27 kt | −6 kt | -26 °C | 126 kt | 7 h 27 min | 3:32 am PDT (10:32 UTC) |
| 30,000 ft FL300 | 230° at 30 kt | +3 kt | -32 °C | 117 kt | 8 h 01 min | 4:06 am PDT (11:06 UTC) |
| 34,000 ft FL340 | 230° at 36 kt | +6 kt | -37 °C | 114 kt | 8 h 14 min | 4:19 am PDT (11:19 UTC) |
| 39,000 ft FL390 | 230° at 39 kt | +9 kt | -42 °C | 111 kt | 8 h 27 min | 4:32 am PDT (11:32 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DEN | used from 0 nm out; 27 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° | ||
| RKS | used from 100 nm out; 105 nm from the line | 200/41 | 220/44 1° | 220/35 -11° | 220/46 -24° | 210/53 -27° | 220/62 -35° | 230/61 -44° | ||
| LND | used from 249 nm out; 36 nm from the line | 200/23 6° | 220/31 1° | 220/39 -11° | 230/39 -23° | 220/51 -28° | 220/66 -37° | 230/68 -45° | ||
| PIH | used from 349 nm out; 71 nm from the line | L/V | 240/13 1° | 240/15 -3° | 210/42 -15° | 200/70 -25° | 220/74 -29° | 220/71 -36° | 220/62 -43° | |
| DLN | used from 449 nm out; 47 nm from the line | 090/6 -6° | 240/22 -4° | 210/34 -16° | 210/62 -25° | 210/66 -34° | 210/82 -36° | 220/77 -42° | ||
| LWS | used from 549 nm out; 98 nm from the line | 070/10 | 080/12 -2° | 030/12 -6° | 080/7 -10° | 170/34 -21° | 160/46 -32° | 200/33 -35° | 220/22 -35° | 230/18 -38° |
| GEG | used from 698 nm out; 45 nm from the line | 080/16 -2° | 050/17 -7° | 080/9 -10° | 190/33 -21° | 180/31 -32° | L/V -35° | L/V -37° | 270/8 -40° | |
| YKM | used from 798 nm out; 78 nm from the line | 070/10 | 040/15 -1° | 020/27 -8° | 030/25 -13° | 020/48 -20° | 010/83 -27° | 010/77 -37° | 010/49 -40° | 350/14 -41° |
| SEA | used from 848 nm out; 68 nm from the line | 050/7 | 050/11 1° | 050/12 -5° | 030/31 -7° | 010/61 -15° | 010/69 -26° | 360/73 -40° | 360/62 -47° | 330/21 -43° |
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 |
|---|---|---|---|---|---|---|---|
| APA Denver, CO | departure | VFR Sky: a few clouds at 14,000 feet, a broken layer at 22,000 feet | from the south-southwest (200°) at 21 knots, gusting to 34 | 10+ mi | 22,000 ft | 5,884 ft | 8:53 pm MDT (02:53 UTC) |
| BJC Denver, CO | 20 nm out, 7 nm north of the line, tower | VFR | from the south-southwest (210°) at 10 knots | 10+ mi | none | 5,673 ft | 02:55 UTC |
| DWX Dixon, WY | 150 nm out, 13 nm southwest of the line | VFR Sky: a broken layer at 7,500 feet | from the southeast (130°) at 14 knots, gusting to 21 | 10+ mi | 7,500 ft | 6,548 ft | 02:55 UTC |
| JAC Jackson, WY | 359 nm out, 15 nm northeast of the line, tower | VFR Sky: overcast at 5,000 feet Weather: light rain | from the south-southeast (160°) at 10 knots | 10+ mi | 5,000 ft | 6,451 ft | 02:56 UTC |
| IDA Idaho Falls, ID | 399 nm out, 25 nm southwest of the line, tower | marginal VFR Sky: a broken layer at 2,500 feet, overcast at 9,500 feet | from the north (350°) at 7 knots | 10+ mi | 2,500 ft | 4,743 ft | 02:53 UTC |
| SMN Salmon, ID | 519 nm out, 7 nm north of the line | VFR Sky: a few clouds at 1,000 feet, a broken layer at 4,800 feet, overcast at 9,000 feet Weather: light rain | from the north (360°) at 8 knots | 10+ mi | 4,800 ft | 4,044 ft | 02:56 UTC |
| GIC Grangeville, ID | 629 nm out, 8 nm south of the line | VFR Sky: overcast at 3,300 feet | from the north-northwest (340°) at 3 knots | 10+ mi | 3,300 ft | 3,313 ft | 02:55 UTC |
| LWS Lewiston, ID | 668 nm out, 7 nm southwest of the line, tower | VFR Sky: overcast at 6,000 feet | from the west-northwest (300°) at 6 knots | 10+ mi | 6,000 ft | 1,442 ft | 02:56 UTC |
| MWH Moses Lake, WA | 778 nm out, 16 nm southwest of the line, tower | VFR Sky: scattered clouds at 8,500 feet, overcast at 11,000 feet | from the north-northwest (330°) at 3 knots | 10+ mi | 11,000 ft | 1,188 ft | 02:52 UTC |
| BLI Bellingham, WA | destination | VFR | from the north (350°) at 5 knots | 10+ mi | none | 171 ft | 7:53 pm PDT (02:53 UTC) |
The highest airport on this list sits at 6,548 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BLI when you get there the forecast at the estimated arrival, 3:32 am PDT (10:32 UTC)
Wind light and variable, visibility more than 6 miles, clear skies VFR
The whole forecast for BLI
- From Sun 5:00 pm PDT (00:00 UTC): wind from the north at 12 knots, gusting to 18, visibility more than 6 miles, clear skies
- From Sun 7:00 pm PDT (02:00 UTC): wind from the north at 6 knots, visibility more than 6 miles, clear skies
- From Sun 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
- From Mon 3:00 pm PDT (22:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, clear skies
The forecast for APA, the departure
- From Sun 6:00 pm MDT (00:00 UTC): wind from the south-southwest at 15 knots, gusting to 26, visibility more than 6 miles, a few clouds at 14,000 feet, scattered clouds at 22,000 feet
- From Mon 1:00 am MDT (07:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a few clouds at 22,000 feet
- From Mon 9:00 am MDT (15:00 UTC): wind from the southwest at 15 knots, gusting to 25, visibility more than 6 miles, clear skies
Temporary flight restrictions on the line or within 25 nm of it
- 6/6654 28NM W TWISP, WA, Thursday, October 1, 2026 through Thursday, October 15, 2026 UTC 8 nm from the route, 868 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 15 October · ZSE
Daylight
Sunset at APA 6:24 pm MDT (00:24 UTC), at BLI 6:26 pm PDT (01:26 UTC) (civil twilight ends 6:58 pm PDT (01:58 UTC)). At 120 knots the arrival at BLI is before sunrise there (7:25 am PDT (14:25 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: Centennial Airport, Bellingham International.