DL657Delta Air Lines · SLC → BOS
live · 26m ago
Route confirmed Delta Air Lines

DL657 Salt Lake CitySLC · 09:55 BostonBOS · 16:38

DL657 by Delta Air Lines flies from Salt Lake City (SLC) to Boston (BOS) for the Thu, Oct 8 departure.

Right nowLanded in Boston · position data
16:51

landed at BOS · confirmed by live position

Typical gate push+24 minmedian posted departure
Typical arrival+11 minmedian over 4 operations
Wins back in air~13 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
10-08
+3 gate · +11 arrival
10-07
+24 gate · −18 arrival
10-06
+27 gate · −7 arrival
10-05
+23 arrival

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

The route today

live boards
SLCSalt Lake CityOn-time likelySLC delay board →
BOSBostonOn-time likelyBOS delay board →
SLC→BOSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Early read, sample still building
39%Chance of 15+ min delay
2.4%Chance of cancellation

Conditions at SLC and BOS 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. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.

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 Boston flights today

same route · Delta Air Lines
DL702departs 17:15
DL696departs 23:51

If DL657 is cancelled, these are the other Delta Air Lines nonstop flights from Salt Lake City to Boston 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 DL657 actually runs

Pro Flight Search has tracked every published board update for DL657 across the SLC and BOS boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +23 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how DL657 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
10-08SLC 09:55 09:58 (+3)BOS 16:38 16:49 (+11)
10-07SLC 09:55 10:19 (+24)BOS 16:38 16:20 (−18)
10-06SLC 09:55 10:22 (+27)BOS 16:38 16:31 (−7)
10-05SLC BOS 16:40 17:03 (+23)

Aircraft

Recent tails: N615DN, N603DN.

Board clocks recorded as SLC and BOS published them.

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 — DL657 Salt Lake City to Boston on-time performance, measured from the SLC and BOS airport boards.

Canonical URL
https://proflightsearch.com/flight/DL657
How we measure this →