London Heathrow (LHR) to Portland (PDX) cheap flight deal from $669 USD in economy class – flightdeals.net

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American Airlines

AAAmerican Airlines

Finnair

British Airways

BABritish Airways

Iberia Airlines

IBIberia Airlines

Round Trip•Economy

London Heathrow Airport

London Heathrow, United Kingdom

Portland International Airport

Portland, United States

$852 USD

-21%$669 USD

Verified Sep 21, 2025 at 6:33 PM

September 2025

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21$1,483 22$1,443 23$1,443 24$1,437 25$1,478 26$1,478 27$1,483 28$715 29$675 30$675 1$675 2$715 3$715 4$715 5$715

Good Availability

40% of dates checked are available within 10% of the lowest price

Sunday, September 21st, 2025

3 round-trip options

Returning

Tue, Sep 30, 2025•9 Day Trip

$1,608 USD

Returning

Wed, Oct 1, 2025•10 Day Trip

$1,483 USD

Returning

Thu, Oct 2, 2025•11 Day Trip

$1,483 USD