EK6421Emirates · SFO → IAH
live · 2m ago
Route confirmed Emirates

EK6421 San FranciscoSFO · 05:00 HoustonIAH

EK6421 by Emirates flies from San Francisco (SFO) to Houston (IAH).

Right nowNext departure tomorrow Operates daily
05:00

scheduled from SFO

Typical gate push−7 minmedian posted departure
Cancellation0 in 12tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-10
−12 gate
10-09
−9 gate
10-08
−7 gate
10-07
−10 gate
10-06
−5 gate
10-05
−7 gate
10-04
−10 gate

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

0 cancelled · 12 operations tracked

The route today

live boards
SFOSan FranciscoModerate riskSFO delay board →
IAHHoustonOn-time likelyIAH delay board →
SFO→IAHevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
53%Chance of 15+ min delay
2.0%Chance of cancellation
+25 minAvg hub delay right now

Driven mainly by SFO (San Francisco), currently flying MVFR (marginal visual). 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 San Francisco to Houston flights today

same route · Emirates
EK6020departs 16:10

If EK6421 is cancelled, this is the other Emirates nonstop flight from San Francisco to Houston on the same day, with scheduled departure times in SFO local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How EK6421 actually runs

Pro Flight Search has tracked every published board update for EK6421 across the SFO and IAH boards: schedule changes, gate pushes and actual clocks. Usually departs ~7 min early. Based on 12 confirmed departures · 12/12 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how EK6421 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-10SFO 05:00 04:48 (−12)IAH
10-09SFO 05:00 04:51 (−9)IAH
10-08SFO 05:00 04:53 (−7)IAH
10-07SFO 05:00 04:50 (−10)IAH
10-06SFO 05:00 04:55 (−5)IAH
10-05SFO 05:00 04:53 (−7)IAH
10-04SFO 05:00 04:50 (−10)IAH
10-03SFO 05:00 04:48 (−12)IAH
10-02SFO 05:00 04:56 (−4)IAH
10-01SFO 05:00 04:54 (−6)IAH
09-30SFO 05:00 04:56 (−4)IAH
09-29SFO 05:00 04:55 (−5)IAH

Board clocks recorded as SFO and IAH published them.

Planning around EK6421? 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 — EK6421 San Francisco to Houston on-time performance, measured from the SFO and IAH airport boards.

Canonical URL
https://proflightsearch.com/flight/EK6421
How we measure this →