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United Airlines

Is UA1665 delayed?

No delay reported yet — UA1665 is scheduled to leave San Francisco at 23:43 on Sep 26 and reach Boston at 08:11 (Sep 27) (as of Sep 26, 23:25 UTC). Over its last 29 recorded arrivals, 3 landed more than 15 min late.

No live update yet

Showing the published schedule until live times are reported.

Update time unavailable

Departure

San Francisco

SFO

Scheduled

Sep 26

Arrival

Boston

BOS

Scheduled

Sep 27

Times shown in airport local time

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

Think UA1665 runs late today? Delayed is trading at 10¢ — pays out x10.23.

Will United Airlines UAL 1665 from San Francisco to Boston arrive on time, be delayed, or be cancelled on Sep 26?
On time88%Pays out x1.13Delayed10%Pays out x10.23Cancelled2%Pays out x50.78
$41 tradedDeparts Sat, Sep 26, 11:43 PM PDT
Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
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.

Route overview: San Francisco → BostonSFOBOS
Route overview

Recent arrivals

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

  • SFO → BOS

    6 min early

  • SFO → BOS

    16 min early

  • SFO → BOS

    14 min early

  • SFO → BOS

    16 min early

  • SFO → BOS

    27 min early
Flight history and details

Aug 27, 2026 — Sep 26, 2026

Observed arrivals
29
Arrivals over 15 minutes late
3
Observed cancellations
0
Observed occurrences
37

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

UA1665 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 25, 2026ArrivedSan FranciscoBoston
View this flight’s market
-6
Sep 24, 2026ArrivedSan FranciscoBoston
-16
Sep 23, 2026ArrivedSan FranciscoBoston
-14
Sep 22, 2026ArrivedSan FranciscoBoston
-16
Sep 21, 2026ArrivedSan FranciscoBoston
-27
Sep 19, 2026ArrivedSan FranciscoBoston
-42
Sep 18, 2026ArrivedSan FranciscoBoston
-17
Sep 19, 2026ArrivedOntarioSan Francisco
16
Sep 17, 2026ArrivedSan FranciscoBoston
-12
Sep 18, 2026ArrivedOntarioSan Francisco
88
Sep 16, 2026ArrivedSan FranciscoBoston
-42
Sep 15, 2026ArrivedSan FranciscoBoston
-53
Sep 14, 2026ArrivedSan FranciscoBoston
-23
Sep 13, 2026ArrivedSan FranciscoBoston
-43
Sep 14, 2026ArrivedOntarioSan Francisco
14
Sep 12, 2026ArrivedSan FranciscoBoston
-42
Sep 11, 2026ArrivedSan FranciscoBoston
-20
Sep 10, 2026ArrivedSan FranciscoBoston
-30
Sep 9, 2026ArrivedSan FranciscoBoston
-46
Sep 8, 2026ArrivedSan FranciscoBoston
-45
Sep 7, 2026ArrivedSan FranciscoBoston
-14
Sep 8, 2026ArrivedOntarioSan Francisco
-3
Sep 6, 2026ArrivedSan FranciscoBoston
-25
Sep 5, 2026ArrivedSan FranciscoBoston
-43
Sep 4, 2026ArrivedSan FranciscoBoston
-39
Sep 5, 2026ArrivedOntarioSan Francisco
-19
Sep 3, 2026ArrivedSan FranciscoBoston
-4
Sep 3, 2026ArrivedOntarioSan Francisco
31
Sep 2, 2026ArrivedSan FranciscoBoston
-63

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