
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,103 |
One-way from | $468 (Kiwi.com) |
Popular in | July |
Cheapest in | November |
Average price | $1,203 |
Good one-way deal | $720 or less |
Fly from
Fly to
Route
Depart
Return
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Sat 7/4
12:15 pm-12:50 am
1 stop20h 35m
Portland
Sun 7/12
7:30 pm-1:00 pm
Nonstop9h 30m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Sun 6/21
5:00 pm-12:22 am
1 stop15h 22m
Portland
Sat 9/5
5:41 pm-3:05 pm
1 stop13h 24m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Tue 6/30
1:45 pm-11:23 pm
1 stop17h 38m
Portland
Sun 7/12
7:30 pm-1:00 pm
Nonstop9h 30m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Wed 7/1
12:30 pm-11:23 pm
1 stop18h 53m
Portland
Sat 7/18
7:30 pm-1:00 pm
Nonstop9h 30m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Tue 6/30
9:25 pm-11:30 pm
2 stops34h 05m
Portland
Fri 7/17
7:38 pm-8:20 pm
2 stops16h 42m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Thu 7/2
11:10 am-9:50 pm
1 stop18h 40m
Portland
Sun 7/12
7:30 pm-1:00 pm
Nonstop9h 30m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Thu 8/20
7:30 pm-5:14 pm
2 stops29h 44m
Portland
Sun 8/23
11:22 am-6:30 pm
2 stops23h 08m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Wed 6/24
3:40 pm-5:40 pm
Nonstop10h 00m
Portland
Mon 9/7
7:30 pm-1:00 pm
Nonstop9h 30m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Fri 6/26
3:40 pm-5:40 pm
Nonstop10h 00m
Portland
Sat 7/11
7:30 pm-1:00 pm
Nonstop9h 30m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Tue 7/7
6:40 am-8:02 pm
2 stops21h 22m
Portland
Thu 7/16
1:25 pm-9:20 pm
3 stops23h 55m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Portland, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Portland (average of $753). Flying from London Heathrow Airport to Portland in July is currently the most expensive (average of $1,303). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from London Heathrow Airport to Portland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
About 21% of weekly flights between London and Portland have experienced delays in the past year, with the average delay time being 120 minutes.
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Friday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Over the last year, British Airways have had the lowest number of delays on this route, with just 21% of flights being delayed.
Boarding
Comfort
Entertainment
Crew
Food
Overall
Reviews
Beatriz,May 2026
HEL - DFW
Boarding
Comfort
Entertainment
Crew
Food
Overall
Reviews
Beatriz,May 2026
HEL - DFW
Boarding
Comfort
Entertainment
Crew
Food
Overall
Reviews
Beatriz,May 2026
HEL - DFW
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$715 | Average$1,064 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$737 | Average$1,319 | FlexibilityNo cancel fee | On-time71% |