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United Airlines

Is UA421 delayed?

No delay reported — UA421 is expected in Chicago at 22:52 on Sep 26, 39 min early. Over its last 58 recorded arrivals, 9 landed more than 15 min late.

Each route and date is shown separately. Confirm that both airports match your booking.

Estimated arrivalLast reported

39 min early

This update may be out of date. Check with your airline.

Update time unavailable

Departure

Dulles

IAD

Actual

Scheduled 22:18

Sep 26

Arrival

Chicago

ORD

Estimated

Scheduled 23:31

Sep 26

Times shown in airport local time

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

Think UA421 runs late today? Delayed is trading at 45¢ — pays out x2.19.

Will United Airlines UA 421 from Dulles to Chicago arrive on time, be delayed, or be cancelled on Sep 26?
On time54%Pays out x1.85Delayed45%Pays out x2.19Cancelled<1%
$342 tradedArrives Sat, Sep 26, 11:31 PM CDT
Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Not available
View this flight’s market

Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.

Arrived

On schedule (2 min behind)

Official source · Updated

Departure

Denver

DEN

Actual

Scheduled 16:04

Sep 26

Arrival

Dulles

IAD

Actual

Scheduled 21:04

Sep 26

Times shown in airport local time

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

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
View this flight’s market

Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.

Route overview: Dulles → ChicagoIADORD
Route overview
Route overview: Denver → DullesDENIAD
Route overview

Recent arrivals

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

  • DEN → IAD

    On schedule (2 min behind)

  • IAD → ORD

    26 min early

  • DEN → IAD

    152 min late

  • IAD → ORD

    41 min early

  • DEN → IAD

    10 min early
Flight history and details

Aug 28, 2026 — Sep 27, 2026

Observed arrivals
58
Arrivals over 15 minutes late
9
Observed cancellations
0
Observed occurrences
60

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

UA421 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 26, 2026ArrivedDenverDulles
View this flight’s market
2
Sep 25, 2026ArrivedDullesChicago
-26
Sep 25, 2026ArrivedDenverDulles
152
Sep 24, 2026ArrivedDullesChicago
-41
Sep 24, 2026ArrivedDenverDulles
-10
Sep 23, 2026ArrivedDullesChicago
-4
Sep 23, 2026ArrivedDenverDulles
-21
Sep 22, 2026ArrivedDullesChicago
-2
Sep 22, 2026ArrivedDenverDulles
-10
Sep 21, 2026ArrivedDullesChicago
35
Sep 21, 2026ArrivedDenverDulles
-6
Sep 20, 2026ArrivedDullesChicago
53
Sep 20, 2026ArrivedDenverDulles
-13
Sep 19, 2026ArrivedDullesChicago
65
Sep 19, 2026ArrivedDenverDulles
-15
Sep 18, 2026ArrivedDullesChicago
14
Sep 18, 2026ArrivedDenverDulles
6
Sep 17, 2026ArrivedDullesChicago
85
Sep 17, 2026ArrivedDenverDulles
-23
Sep 16, 2026ArrivedDullesChicago
-14
Sep 16, 2026ArrivedDenverDulles
-6
Sep 15, 2026ArrivedDullesChicago
0
Sep 15, 2026ArrivedDenverDulles
-26
Sep 14, 2026ArrivedDullesChicago
-9
Sep 14, 2026ArrivedDenverDulles
-23
Sep 13, 2026ArrivedDullesChicago
6
Sep 13, 2026ArrivedDenverDulles
-4
Sep 12, 2026ArrivedDullesChicago
-2
Sep 12, 2026ArrivedDenverDulles
-18
Sep 11, 2026ArrivedDullesChicago
-34
Sep 11, 2026ArrivedDenverDulles
-10
Sep 10, 2026ArrivedDullesChicago
-6
Sep 10, 2026ArrivedDenverDulles
-24
Sep 9, 2026ArrivedDullesChicago
-6
Sep 9, 2026ArrivedDenverDulles
-15
Sep 8, 2026ArrivedDullesChicago
-2
Sep 8, 2026ArrivedDenverDulles
-17
Sep 7, 2026ArrivedDullesChicago
-10
Sep 7, 2026ArrivedDenverDulles
9
Sep 6, 2026ArrivedDullesChicago
23
Sep 6, 2026ArrivedDenverDulles
-8
Sep 5, 2026ArrivedDullesChicago
-21
Sep 5, 2026ArrivedDenverDulles
-23
Sep 4, 2026ArrivedDullesChicago
-1
Sep 4, 2026ArrivedDenverDulles
-14
Sep 3, 2026ArrivedDenverDulles
40
Sep 2, 2026ArrivedDullesChicago
-22
Sep 2, 2026ArrivedDenverDulles
-21
Sep 1, 2026ArrivedDullesChicago
17
Sep 1, 2026ArrivedDenverDulles
-10
Aug 31, 2026ArrivedDullesChicago
-4
Aug 31, 2026ArrivedDenverDulles
-2
Aug 30, 2026ArrivedDullesChicago
56
Aug 30, 2026ArrivedDenverDulles
-2
Aug 29, 2026ArrivedDullesChicago
-28
Aug 29, 2026ArrivedDenverDulles
-2
Aug 28, 2026ArrivedDullesChicago
-20
Aug 28, 2026ArrivedDenverDulles
12

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