Cheap flights from Portland to South London

View AU$527 flight on Thu, 11 Sep. 2025Opens in a new window

Popular airlines from Portland to South London

  • Icelandair

    Icelandair

  • Virgin Atlantic

    Virgin Atlantic

  • WestJet

    WestJet

  • Delta

    Delta

  • KLM

    KLM

  • Air France

    Air France

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Cheap Flights from Portland (PDX) to South London (LON)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 7 Aug. - Mon, 11 Aug.
PDX
Portland
LHR
London
AU$999 Return, found 4 days ago
AU$999
Return
found 4 days ago
Select United flight, departing Thu, 7 Aug. from Portland to London, returning Mon, 11 Aug., priced at AU$999 found 4 days ago
Delta
Thu, 7 Aug. - Mon, 11 Aug.
PDX
Portland
LHR
London
AU$999 Return, found 4 days ago
AU$999
Return
found 4 days ago
Select Delta flight, departing Thu, 7 Aug. from Portland to London, returning Mon, 11 Aug., priced at AU$999 found 4 days ago
Virgin Atlantic
Thu, 7 Aug. - Mon, 11 Aug.
PDX
Portland
LHR
London
AU$1,146 Return, found 4 days ago
AU$1,146
Return
found 4 days ago
Select Virgin Atlantic flight, departing Thu, 7 Aug. from Portland to London, returning Mon, 11 Aug., priced at AU$1,146 found 4 days ago
Icelandair
Thu, 7 Aug. - Mon, 11 Aug.
PDX
Portland
LHR
London
AU$1,250 Return, found 4 days ago
AU$1,250
Return
found 4 days ago
Select Icelandair flight, departing Thu, 7 Aug. from Portland to London, returning Mon, 11 Aug., priced at AU$1,250 found 4 days ago
American Airlines
Thu, 7 Aug. - Mon, 11 Aug.
PDX
Portland
LHR
London
AU$1,306 Return, found 4 days ago
AU$1,306
Return
found 4 days ago
Select American Airlines flight, departing Thu, 7 Aug. from Portland to London, returning Mon, 11 Aug., priced at AU$1,306 found 4 days ago
Lufthansa
Thu, 7 Aug. - Mon, 11 Aug.
PDX
Portland
LHR
London
AU$1,335 Return, found 4 days ago
AU$1,335
Return
found 4 days ago
Select Lufthansa flight, departing Thu, 7 Aug. from Portland to London, returning Mon, 11 Aug., priced at AU$1,335 found 4 days ago

Find the cheapest month to fly from Portland (PDX) to London (LHR)

October is typically the cheapest month to fly

From AU$765 - AU$1,688 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.