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Delta Air Lines

Is DL5666 delayed?

Service date: · Scheduled departure date (UTC)

Arrived

1 min late

Official source · Updated

Departure

Richmond

RIC

Actual

Scheduled 06:25

Sep 4

Arrival

Washington

DCA

Actual

Scheduled 02:46

Sep 4

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • BOS → DCA

    62 min late

  • BOS → DCA

    13 min late

  • BOS → DCA

    6 min late

  • RIC → DCA

    1 min late

  • BOS → DCA

    3 min early
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
10
Arrivals over 15 minutes late
4
Observed cancellations
0
Observed occurrences
19

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

DL5666 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 16, 2026ArrivedBostonWashington
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62
Sep 15, 2026ArrivedBostonWashington
13
Sep 11, 2026ArrivedBostonWashington
6
Sep 4, 2026ArrivedRichmondWashington
1
Sep 2, 2026ArrivedBostonWashington
-3
Sep 1, 2026ArrivedBostonWashington
20
Aug 29, 2026ArrivedBostonWashington
-54
Aug 28, 2026ArrivedBostonWashington
33
Aug 27, 2026ArrivedBostonWashington
28
Aug 22, 2026ArrivedBostonWashington
-33

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