AA639American Airlines · ORD → ATL
live · 6m ago
Route confirmed American Airlines

AA639 ChicagoORD · 06:54 AtlantaATL · 09:59

AA639 by American Airlines flies from Chicago (ORD) to Atlanta (ATL).

Right nowNext departure today Operates daily
06:54

scheduled from ORD

⚖ AA639 typically leaves −2 and lands −16. The air wins minutes back.
Typical gate push−2 minmedian posted departure
Typical arrival−16 minmedian over 10 operations
Wins back in air~14 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 10tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-17
+9 gate · +0 arrival
10-16
+9 gate · +0 arrival
10-15
−3 gate · −20 arrival
10-14
+4 gate · +7 arrival
10-13
−2 gate · −28 arrival
10-12
−1 gate · −28 arrival
10-11
−12 gate · −27 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 −16 min · 0 cancelled · 10 operations tracked

The route today

live boards
ORDChicagoModerate riskORD delay board →
ATLAtlantaOn-time likelyATL delay board →
ORD→ATLevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
37%Chance of 15+ min delay
1.3%Chance of cancellation
+12 minAvg hub delay right now

Conditions at ORD and ATL 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 Chicago to Atlanta flights today

same route · American Airlines
AA1153departs 08:29
AA2910departs 11:00
AA1138departs 12:56
AA3033departs 15:09
AA2472departs 19:30

If AA639 is cancelled, these are the other American Airlines nonstop flights from Chicago to Atlanta on the same day, with scheduled departure times in ORD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How AA639 actually runs

Pro Flight Search has tracked every published board update for AA639 across the ORD and ATL boards: schedule changes, gate pushes and actual clocks. Usually lands ~7 min early. Based on 10 confirmed landings · 8/10 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how AA639 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
10-17ORD 06:54 07:03 (+9)ATL 09:59 (+0)
10-16ORD 06:54 07:03 (+9)ATL 09:59 (+0)
10-15ORD 06:54 06:51 (−3)ATL 09:59 09:39 (−20)
10-14ORD 06:54 06:58 (+4)ATL 09:59 10:06 (+7)
10-13ORD 06:54 06:52 (−2)ATL 09:59 09:31 (−28)
10-12ORD 06:54 06:53 (−1)ATL 09:59 09:31 (−28)
10-11ORD 06:54 06:42 (−12)ATL 09:59 09:32 (−27)
10-09ORD 06:54 06:52 (−2)ATL 09:59 09:43 (−16)
10-08ORD 06:54 06:46 (−8)ATL 09:59 09:31 (−28)
10-07ORD 06:54ATL 09:59 (+0)

Aircraft

Recent tails: N813AW, N702UW, N764US, N832AW.

Board clocks recorded as ORD and ATL published them.

Planning around AA639? 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 — AA639 Chicago to Atlanta on-time performance, measured from the ORD and ATL airport boards.

Canonical URL
https://proflightsearch.com/flight/AA639
How we measure this →