Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Portland to London
The cheapest flights right now
Portland – London
Outbound – Jan 5, 2027
direct
9h 35m Return – Jan 17, 2027
direct
10h 15m $1,156
today
Portland – London
Outbound – Jan 5, 2027
direct
9h 35m Return – Jan 17, 2027
direct
10h 15m $1,154
today
Portland – London
Outbound – Jan 5, 2027
direct
9h 35m Return – Jan 17, 2027
direct
10h 15m $1,287
today
Portland – London
Outbound – Jan 5, 2027
direct
9h 35m Return – Jan 17, 2027
direct
10h 15m $1,275
2 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Today’s flight suggestion for Portland - London
Outbound January 4, 2027 · Inbound January 17, 2027
Today’s suggestion
2:45 PM
PDX 8:35 AM +2
LGW33h 50m
2 stops
6:00 AM
LTN 9:27 AM +2
PDX59h 27m
3 stops
From $834
5:45 PM
PDX 11:20 AM +1
LHR9h 35m
Direct
1:35 PM
LHR 3:50 PM
PDX10h 15m
Direct
From $1,069
5:45 PM
PDX 11:20 AM +1
LHR9h 35m
Direct
1:35 PM
LHR 3:50 PM
PDX10h 15m
Direct
From $1,152
Cheapest flight tickets
$575
Average price of a round trip
$783
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
9h31
A flight from Portland to London takes on average 9h31.
Best time
August
According to user searches, the ideal month to go to London is August.
What is the cheapest month for this flight?
Monthly price data (Table View)
November
Nov
$714
December
Dec
$734
January
Jan
$0
February
Feb
$794
March
Mar
$848
April
Apr
$0
May
May
$0
June
Jun
$0
July
Jul
$1,000
August
Aug
$0
September
Sep
$724
October
Oct
$663
* The prices shown are an average per month of the prices found by Liligo users during the last 30 days.
Tips for finding a cheap flight from Portland to London
Check out our tips for booking your flight to London (United Kingdom) from Portland (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is October, with an average flight ticket price of $666 (calculation over the last two years). The most touristic season corresponds to the months of November, October and September.
For the cheapest flights, it is advisable to buy your ticket at least 30 days before the departure date.
The airline offering the cheapest flight tickets is Icelandair. A ticket from the airline Icelandair to London costs on average $718.
The airlines that offer the most flights are Finnair and Finnair.
Price of flight tickets from Portland to London
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $575 to $1228
- The average price of a flight ticket is about $783
- Prices are lowest for stays in the month of October
- The month in which booking a ticket is cheaper is: November
info departure city :
Portland, USA
airports :
Portland International Airport (PDX)
Pearson Airpark (VUO)
local time :
Portland is a city in the country USA, the time zone is [[timezone]]. In Portland, it is currently {fromLocalTime}, the temperature is on average 11°C, with a minimum of 10°C and a maximum of 12°C.
The city of Portland has 2 airport(s): Portland and Pearson Airpark
destination info :
London, United Kingdom
airports :
London City Airport (LCY)
London Gatwick Airport (LGW)
London Heathrow Airport (LHR)
London Luton Airport (LTN)
London-Stansted Airport (STN)
local time :
London is in the country United Kingdom, the time zone is [[timezone]]. In London, it is currently {toLocalTime}, the temperature is on average 4°C, with a minimum of 1°C and a maximum of 8°C.
The city of London (LON) has 5 airport(s): London City, London Gatwick, London Heathrow, London Luton and London-Stansted
Useful info about London
What is the least touristic period to go to London?
If you want to visit London during the least touristic period, choose the month of August.
What is the most popular time to travel to London?
In London, the most popular month is November. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Portland to London?
According to our data, it is recommended to book your flight 30 days before your departure. If you book your flight ticket 5 weeks before your departure, you may find a price below average. You can also choose morning flights that are 13% cheaper than afternoon and evening flights. The cheapest day to book a flight from Portland to London is Monday.
What are the arrival and destination airports when traveling between Portland and London?
When you leave, you can leave from Portland, and you will arrive at London Gatwick, London Heathrow, London Luton, London Southend or London-Stansted.
How to reach Portland airport from the city centre?
The airport Portland is located 10 km or Pearson Airpark is located 10 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Portland to London?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Portland and London?
In summer, the average temperature is 18°C in London and 20°C in Portland. The average rainfall in summer is 63 mm in London and 19 mm in Portland. In summer, it is warmer in Portland and it rains less in Portland. In winter, it is colder in London and it rains more in Portland.
