DL4446Delta Air Lines · SLC → BOI
live · 4h ago
Route confirmed Delta Air Lines

DL4446 Salt Lake CitySLC · 20:40 BoiseBOI · 21:58

DL4446 by Delta Air Lines flies from Salt Lake City (SLC) to Boise (BOI).

Right nowNext departure today Operates daily
20:40

scheduled from SLC

⚖ DL4446 typically leaves +17 and lands −14. The air wins minutes back.
Typical gate push+17 minmedian posted departure
Typical arrival−14 minmedian over 11 operations
Wins back in air~31 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 11tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-23
+8 gate · −26 arrival
10-22
+23 gate · −14 arrival
10-21
+32 gate · −3 arrival
10-18
+17 gate · −14 arrival
10-17
+16 gate · −17 arrival
10-16
+8 gate · −26 arrival
10-15
+29 gate · −7 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −14 min · 0 cancelled · 11 operations tracked

The route today

live boards
SLCSalt Lake CityOn-time likelySLC delay board →
BOIBoiseHigh riskBOI delay board →
SLC→BOIevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
40%Chance of 15+ min delay
0.4%Chance of cancellation
+10 minAvg hub delay right now

Conditions at SLC and BOI are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Salt Lake City to Boise flights today

same route · Delta Air Lines
DL1744departs 09:25
DL2095departs 11:00
DL4018departs 16:41
DL2920departs 16:43
DL2111departs 22:45
DL3877departs 22:45

If DL4446 is cancelled, these are the other Delta Air Lines nonstop flights from Salt Lake City to Boise on the same day, with scheduled departure times in SLC local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How DL4446 actually runs

Pro Flight Search has tracked every published board update for DL4446 across the SLC and BOI boards: schedule changes, gate pushes and actual clocks. Usually lands ~10 min late. Based on 11 confirmed landings · 6/11 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how DL4446 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-23SLC 20:40 20:48 (+8)BOI 21:58 21:32 (−26)
10-22SLC 20:40 21:03 (+23)BOI 21:58 21:44 (−14)
10-21SLC 20:40 21:12 (+32)BOI 21:58 21:55 (−3)
10-18SLC 20:40 20:57 (+17)BOI 21:58 21:44 (−14)
10-17SLC 21:30 21:46 (+16)BOI 22:48 22:31 (−17)
10-16SLC 20:40 20:48 (+8)BOI 21:58 21:32 (−26)
10-15SLC 20:40 21:09 (+29)BOI 21:58 21:51 (−7)
10-14SLC 20:40 20:57 (+17)BOI 21:58 21:45 (−13)
10-11SLC 20:40 20:53 (+13)BOI 21:58 21:38 (−20)
10-10SLC 21:30 21:49 (+19)BOI 22:48 22:36 (−12)
10-09SLC 20:40 21:16 (+36)BOI 21:58 22:05 (+7)

Aircraft

Recent tails: N278SY, N302SY, N282SY, N285SY.

Board clocks recorded as SLC and BOI published them.

Planning around DL4446? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — DL4446 Salt Lake City to Boise on-time performance, measured from the SLC and BOI airport boards.

Canonical URL
https://proflightsearch.com/flight/DL4446
How we measure this →