London, UK to Portland, Oregon for only £397 roundtrip

_Portland / 1 Stop / Depart UK & Ireland / Economy / Flight / Icelandair / London / London, UK → Portland, USA / North America / Standard Route
Flight deals from London, UK to Portland, Oregon | Secret Flying
Missed the deal?

Become a Secret Flying member to receive alerts to your inbox the moment we publish a flight deal.

You'll never miss a Secret Flying deal again.

Cheap flights from London, UK to Portland, Oregon for only £397 roundtrip.

 

DEPART:
London, UK

 

ARRIVE:
Portland, USA

 

RETURN:
London, UK

 

DATES:
Limited availability in March 2026

Example dates:
8th-16th Mar
8th-17th Mar
9th-16th Mar
9th-17th Mar
18th-26th Mar

possibly more…

 

STOPS:
Reykjavik

 

AIRLINES:
Icelandair

 

 

GO TO DEAL

 

Cheap flights from London, UK to Portland, Oregon for only £397 roundtrip. Flight deal ticket image.

Top 10
Things to Do in
Portland, Oregon

Check monthly
weather averages for

Portland, Oregon
Find a hotel to go with your flight to
Portland