Cheap flights from Portland to London (All Airports)
Portland to London (All Airports) (PDX → LON). We are tracking 14 fares on this route.
Cheapest tracked fare $329 · typical price $669 · you save about $340 (51%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Delta
2026-09-14
1 stop
$329
Delta
2026-09-21
1 stop
$329
Delta
2026-09-28
1 stop
$329
Delta
2026-10-05
1 stop
$329
Delta, Virgin Atlantic
2026-10-12
1 stop
$329
Delta, Virgin Atlantic
2026-10-19
1 stop
$329
Delta
2026-10-26
1 stop
$329
Delta
2026-11-02
1 stop
$329
Delta
2026-11-09
1 stop
$329
Delta
2026-11-16
1 stop
$329
Delta, Virgin Atlantic
2026-11-23
1 stop
$329
British Airways
2026-11-30
Direct
$335
WestJet
2026-10-11
1 stop
$451
Alaska, Condor
2026-10-04
2 stops
$460
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
How cheap can flights from Portland to London (All Airports) get?
The cheapest fare we have tracked on this route is $329, compared with a typical $669 for a trip of this distance.
Is it cheaper to fly to London (All Airports) from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make Portland to London (All Airports) cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.