UA688 · UAL688

UAL688 over the last 30 days

As of 2026-10-26

UAL688 is operated by United Airlines on the route Washington Dulles International Airport (IAD/KIAD) → Boston Logan International Airport (BOS/KBOS). It usually takes off around 21:52 or 23:25 UTC (17:52 or 19:25 local time, IAD). It usually lands around 00:36 or 22:55 UTC (20:36 or 18:55 local time, BOS). Most frequent aircraft type: BOEING 737-700 (B737).

Days with an observed flight (last 30 days)

29/30

Days of the week with an observed flight

Mon, Tue, Wed, Thu, Fri, Sat, Sun

Typical take-off

21:52 UTC · 17:52 local time (IAD) / 23:25 UTC · 19:25 local time (IAD)

Typical landing

00:36 UTC · 20:36 local time (BOS) / 22:55 UTC · 18:55 local time (BOS)

Typical time airborne

70 min

Median departure deviation from the usual time on this route

+8 min

Departures within 15 minutes of the usual time

73 %

Departures measured

84

Our measurement against the usual departure time of the route, from our own observations over the last 28 days; the figures cover all flights of this airline on the route.

Aircraft types on this flight (last 30 days)

• BOEING 737-700 (B737) — Number of flights: 32
• BOEING 737-900 (B739) — Number of flights: 19
• AIRBUS A-319 (A319) — Number of flights: 2

Aircraft in the last 7 days

• N37325 · BOEING 737 MAX 8 2026-10-26
• N17336 · BOEING 737 MAX 8 2026-10-25
• N27733 · BOEING 737-700 2026-10-24
• N37445 · BOEING 737 MAX 9 2026-10-23
• N33714 · BOEING 737-700 2026-10-23
• N63820 · BOEING 737-900 2026-10-22

Related flights on this route

• All flights KIAD – KBOS