LIS → IADLisbon to Washington

live

Direct flights from Lisbon (LIS) to Washington (IAD): 14 nonstop departures observed each week across 2 airlines. 75% of the last 8 operated flights arrived within 15 minutes of schedule. The median arrival is 6 minutes late. No cancellations were recorded across the 8 tracked flights. The nonstop covers 5,766 km, an estimated 7 hours 54 minutes in the air. Measured by Pro Flight Search from live flight boards at Lisbon and Washington. Updated 7 September 2026 at 14:16 UTC.

LIS Lisbon busy · +23
IAD Washington smooth · +2
5,766 km · ~7h 54m est.
dep bank 11:40–17:1514x weekly
Runs mixed · 2 airlines · 14x weekly · nonstop
75% on time

of the last 8 operated LIS → IAD flights arrived within 15 minutes

Median arrival delay is +6 min. 0 of 8 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+6 minacross the last 8 operated legs
Flight time~7h 54mestimated from route distance
Weekly departures14x2 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
TAP Air PortugalUnited Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
TAP Air PortugalTP80% on time

Flights TP231 11:40 daily · TP233 17:15 daily

United AirlinesUA

Flights UA943 12:20 daily

History

operated legs · board outcomes
09-07TP231departed+15
09-07UA943departed+26
09-06TP231dep +29 → arr−27
09-06TP233dep +37 → arr+5
09-06UA943dep +25 → arr+6
09-05TP231dep +23 → arr−24
09-05TP233dep +121 → arr+87
09-05UA943arrived+1

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
LISLisbon +23 min busy 🌤 few clouds · WNW 10 kt Full LIS delay board →
IADWashington +2 min smooth 🌤 few clouds · NNW 3 kt Full IAD delay board →

Weather lens

Current conditions put the pressure at LIS and IAD: 38% odds of a 15+ minute delay and around +4 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Lisbon to Washington route actually runs

Pro Flight Search records official board updates for nonstop LIS to IAD flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Lisbon (LIS) to Washington (IAD) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/LIS-IAD
How we measure this →

LIS to IAD questions

Is LIS–IAD running on time right now?

Smooth skies ahead. The departure side at LIS is the weaker end, route health score 85/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on LIS–IAD?

Operators schedule morning departures around 11:40 and evening departures around 17:15 from LIS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the IAD delay card to confirm conditions when you'd arrive.

How long is the flight from LIS to IAD?

Great-circle distance is 5,766 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 437–524 min gate-to-gate on this route.

How often does LIS–IAD fly?

2 carriers operate this route, around 21 flights a week between them. Compare carrier days and times in the airline list above.