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United Airlines

Is UA558 delayed?

Service date: · Scheduled departure date (America/Denver)

Arrived

9 min early

Official source · Updated

Departure

Denver

DEN

Actual

Scheduled 07:45

Sep 4

Arrival

Boston

BOS

Actual

Scheduled 13:47

Sep 4

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Route overview: Denver → BostonDENBOS
Route overview

Recent arrivals

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

  • DEN → BOS

    1 min late

  • DEN → BOS

    57 min late

  • DEN → BOS

    13 min late

  • IAD → ATL

    3 min late

  • DEN → BOS

    28 min early
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
21
Arrivals over 15 minutes late
1
Observed cancellations
0
Observed occurrences
24

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

UA558 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedDenverBoston
View this flight’s market
1
Sep 16, 2026ArrivedDenverBoston
57
Sep 14, 2026ArrivedDenverBoston
13
Sep 12, 2026ArrivedDullesAtlanta
3
Sep 11, 2026ArrivedDenverBoston
-28
Sep 10, 2026ArrivedDenverBoston
-19
Sep 9, 2026ArrivedDenverBoston
-3
Sep 8, 2026ArrivedDenverBoston
-12
Sep 7, 2026ArrivedDenverBoston
-2
Sep 4, 2026ArrivedDenverBoston
-9
Sep 1, 2026ArrivedDenverBoston
-35
Aug 31, 2026ArrivedDenverBoston
-30
Aug 30, 2026ArrivedDenverBoston
-24
Aug 28, 2026ArrivedDenverBoston
-18
Aug 27, 2026ArrivedDenverBoston
-18
Aug 26, 2026ArrivedDenverBoston
-12
Aug 25, 2026ArrivedDenverBoston
-23
Aug 24, 2026ArrivedDenverBoston
-24
Aug 23, 2026ArrivedDenverBoston
-10
Aug 21, 2026ArrivedDenverBoston
-23
Aug 20, 2026ArrivedDenverBoston
-31

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