Rare1 stop · 10.5h
WAS to LIMPeru
Lima
$347
usually $630
−45%
Most monthly lows $409–$630. Cheaper than every other month on record (3).
Flights · WAS → LIS
Washington to Lisbon
Best fare, round trip
$623
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Wed 23 Jun
- Return
- Wed 30 Jun
- Stay
- 7 nights
- Flight
- Nonstop · 7.5h
- Airline
TAP Air Portugal
Cached fare — the booking search re-prices live before you pay.
PortugalLisbonTiled hills, custard tarts, Atlantic light — TAP’s hub wars keep this Europe’s cheapest gateway.Best windowMar–Jun · Sep–OctAirportsHumberto Delgado (LIS)Every route into LisbonFare seasonality
When this route gets cheap.
The cheapest itinerary we are tracking flies TAP Air Portugal nonstop and takes about 7.5 hours outbound, on a 7-night trip. At $623 for 5,737 km each way, that works out to about $54 per 1,000 km flown. That is above the $43 per 1,000 km typical of medium-haul fares here. Across the 8 departure cities we track at a similar distance from Lisbon, this fare ranks 7th — 1.6× the $386 we hold from Toronto. That puts it in the cheaper half of the 21 routes of similar length we watch out of Washington, where the middle fare is $697. We have 3 months of cached prices for this route so far — not enough to call a fare cheap or expensive, so we publish the price without a percentage. Fare history here is still too short to name a cheap season. The best time to be in Lisbon: Mar–Jun · Sep–Oct.
Day-level prices for the next 4 months
Press a day to compare its fares
The median cached fare across this calendar is 1% higher than when tracking began on 8 Aug — $792 then versus $798 now, across 17 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $420, on 27 Oct.
Cached day-level data for this route is sparse — 11 of 109 days priced, from 40 tracked fares. The days below are shown as found, with no cheapest-day or below-median call.
October 2026
November 2026
12Tuesday 3 November: $829. Compare fares from this day.Wednesday 4 November: $832. Compare fares from this day.Thursday 5 November: $798. Compare fares from this day.Friday 6 November: $793. Compare fares from this day.Saturday 7 November: $798. Compare fares from this day.Sunday 8 November: $668. Compare fares from this day.Monday 9 November: $770. Compare fares from this day.Tuesday 10 November: $705. Compare fares from this day.1112131415161718Thursday 19 November: $903. Compare fares from this day.Friday 20 November: $926. Compare fares from this day.21222324252627282930
December 2026
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January 2027
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Cached fares · checked 15 Oct 2026
We are still collecting this route's months — 3 months of cached prices so far, too few to chart.
Route facts
- Airports
- Dulles (IAD) · Reagan National (DCA) · Baltimore (BWI) ↔ Humberto Delgado (LIS)
- Flight time
- ≈7.5 hours outbound
- Distance
- ≈5,737 km each way
- Airlines on the board
- TAP Air Portugal
- Itineraries
- Nonstop available
- Best months to visit
- Mar–Jun · Sep–Oct
Good to know
WAS → LIS, answered.
How far in advance should I book WAS → Lisbon?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. Our guide Why flight prices change covers the levers we can measure.
Are there nonstop flights from Washington to Lisbon?
Yes — the current board includes nonstop fares (TAP Air Portugal). The outbound leg runs around 7.5 hours.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on 17 October). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Lisbon?
Lock the flight first — then compare stays for 23–30 Jun '27 · 7 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next WAS → LIS drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
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