
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $911 (American Airlines) |
One-way from | $450 (Kiwi.com) |
Popular in | July |
Cheapest in | November |
Average price | $883 |
Good round-trip deal | $1,079 or less |
Good one-way deal | $970 or less |
Fly from
Fly to
Route
Depart
Return
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Thu 9/10
9:05 pm-4:33 pm
3 stops27h 28m
Portland
Sun 9/27
1:38 pm-6:30 pm
2 stops20h 52m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Thu 9/10
2:50 pm-8:55 pm
1 stop14h 05m
Portland
Sun 9/13
10:50 pm-8:40 pm
1 stop13h 50m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Fri 9/4
9:05 pm-6:41 pm
3 stops29h 36m
Portland
Fri 9/18
1:38 pm-4:00 pm
2 stops18h 22m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Thu 9/3
3:40 pm-5:40 pm
Nonstop10h 00m
Portland
Wed 9/9
7:30 pm-1:00 pm
Nonstop9h 30m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Tue 9/8
3:40 pm-5:40 pm
Nonstop10h 00m
Portland
Sun 9/13
12:32 pm-6:50 am
1 stop34h 18m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Sat 9/5
3:40 pm-5:40 pm
Nonstop10h 00m
Portland
Sat 9/12
7:30 pm-1:00 pm
Nonstop9h 30m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Sat 9/5
10:05 am-6:59 pm
1 stop16h 54m
Portland
Fri 9/11
7:30 pm-1:00 pm
Nonstop9h 30m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 6/15
3:40 pm-5:40 pm
Nonstop10h 00m
Portland
Tue 6/30
7:30 pm-1:00 pm
Nonstop9h 30m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 7/13
2:45 pm-9:50 pm
1 stop15h 05m
Portland
Sun 7/19
7:30 pm-1:00 pm
Nonstop9h 30m
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Fri 8/28
3:40 pm-5:40 pm
Nonstop10h 00m
Portland
Sat 9/5
1:30 pm-12:10 pm
1 stop14h 40m
| 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 $1,168). 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 19% of weekly flights between London and Portland have experienced delays in the past year, with the average delay time being 114 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 19% of flights being delayed.
Crew
Entertainment
Comfort
Overall
Boarding
Food
Reviews
Beatriz,May 2026
HEL - DFW
Crew
Entertainment
Comfort
Overall
Boarding
Food
Reviews
Beatriz,May 2026
HEL - DFW
Crew
Entertainment
Comfort
Overall
Boarding
Food
Reviews
Beatriz,May 2026
HEL - DFW
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$715 | Average$1,030 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$737 | Average$1,224 | FlexibilityNo cancel fee | On-time71% |