DL173Delta Air Lines · SLC → ICN
live · 5m ago
Route confirmed Delta Air Lines

DL173 Salt Lake CitySLC · 11:50 SeoulICN · 16:20

DL173 by Delta Air Lines flies from Salt Lake City (SLC) to Seoul (ICN) for the Sat, Oct 31 departure.

Right nowEn route to Seoul · off blocks 12:00 · 10 min late
16:03

estimated arrival at ICN · local time · ~3h 02m from now

En routeDL173 · position estimated
SLCSalt Lake CityICNSeoul
Estimated from the boardsarr 16:03

Board estimate · gate and arrival times. Off blocks 12:00 · typical taxi-out at SLC ≈ 9 min. No receiver coverage over open ocean.

⚖ DL173 typically leaves +12 and lands −19. The air wins minutes back.
Typical gate push+12 minmedian posted departure
Typical arrival−19 minmedian over 13 operations
Wins back in air~31 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 14tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-31
+10 gate · −17 arrival
10-30
+6 gate · −38 arrival
10-29
+29 gate · −30 arrival
10-28
+0 gate · −16 arrival
10-27
+8 gate · +0 arrival
10-26
+5 gate · −40 arrival
10-25
+22 gate · −15 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 −19 min · 0 cancelled · 14 operations tracked

The route today

live boards
SLCSalt Lake CityOn-time likelySLC delay board →
ICNSeoulOn-time likelyICN delay board →
SLC→ICNevery carrier, schedules and on-time historyRoute intelligence →

Tomorrow on this route

Forecast

Salt Lake City to Seoul with Delta Air Lines · Sun 1 Nov, local date

Outlook: elevated
Chance a departure leaves 60+ min late
9.0%2.5× usual

Forecast weather: 97% chance of rain at Salt Lake City

No cancellation outlook here: this airport's board does not publish cancellations reliably.

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · About 1 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

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.

How DL173 actually runs

Pro Flight Search has tracked every published board update for DL173 across the SLC and ICN boards: schedule changes, gate pushes and actual clocks. Usually lands ~19 min early. Based on 12 confirmed landings · 12/12 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how DL173 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
10-31SLC 11:50 12:00 (+10)ICN 16:20 16:03 (−17)
10-30SLC 11:50 11:56 (+6)ICN 16:20 15:42 (−38)
10-29SLC 11:50 12:19 (+29)ICN 16:20 15:50 (−30)
10-28SLC 11:50 (+0)ICN 16:20 16:04 (−16)
10-27SLC 11:50 11:58 (+8)ICN 16:20 (+0)
10-26SLC 11:50 11:55 (+5)ICN 16:20 15:40 (−40)
10-25SLC 11:50 12:12 (+22)ICN 16:20 16:05 (−15)
10-24SLC 11:50 11:58 (+8)ICN
10-23SLC 10:55 11:09 (+14)ICN 00:25 00:10 (−15)
10-22SLC 10:55 11:11 (+16)ICN 15:20 14:57 (−23)
10-21SLC 10:55 11:18 (+23)ICN 15:20 15:29 (+9)
10-20SLC 10:55 11:13 (+18)ICN 15:20 15:01 (−19)
10-19SLC 10:55 11:03 (+8)ICN 15:20 14:48 (−32)
10-18SLC 10:55 11:13 (+18)ICN 15:20 15:01 (−19)

Aircraft

Recent tails: N515DN, N570DZ, N573DZ, N503DN.

Board clocks recorded as SLC and ICN published them.

Planning around DL173? 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: DL173 Salt Lake City to Seoul on-time performance, measured from the SLC and ICN airport boards.

Canonical URL
https://proflightsearch.com/flight/DL173
How we measure this →