
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $924 (Expedia) |
One-way from | $262 (Kiwi.com) |
Popular in | July |
Cheapest in | November |
Average price | $966 |
Good round-trip deal | $991 or less |
Good one-way deal | $397 or less |
Fly from
Fly to
Route
Depart
Return
PortlandLondon
PDX - LTN
PDXLTN
Portland
Sat 9/19
3:30 pm-1:05 pm
1 stop13h 35m
London Luton
Sun 9/27
6:25 am-5:55 pm
1 stop19h 30m
PortlandLondon
PDX - LHR
PDXLHR
Portland
Sat 8/8
11:07 pm-6:25 am
1 stop23h 18m
London Heathrow
Tue 8/18
6:30 am-4:09 pm
2 stops17h 39m
PortlandLondon
PDX - LHR
PDXLHR
Portland
Sat 9/12
10:05 pm-8:10 pm
1 stop14h 05m
London Heathrow
Sun 9/20
6:30 am-6:41 pm
2 stops20h 11m
PortlandLondon
PDX - LHR
PDXLHR
Portland
Mon 10/26
9:40 am-10:45 am
2 stops18h 05m
London Heathrow
Sun 11/8
6:30 am-11:25 am
1 stop12h 55m
PortlandLondon
PDX - LHR
PDXLHR
Portland
Mon 10/19
3:10 pm-1:05 pm
1 stop13h 55m
London Heathrow
Mon 11/9
8:40 am-9:53 pm
2 stops21h 13m
PortlandLondon
PDX - LGW
PDXLGW
Portland
Mon 9/7
3:50 pm-4:00 pm
2 stops16h 10m
London Gatwick
Mon 9/28
10:25 am-8:49 pm
2 stops18h 24m
PortlandLondon
PDX - LCY
PDXLCY
Portland
Sun 8/23
1:05 pm-5:20 pm
1 stop20h 15m
London City
Fri 8/28
7:00 pm-11:10 am
1 stop24h 10m
PortlandLondon
PDX - LTN
PDXLTN
Portland
Wed 7/22
3:30 pm-9:15 pm
3 stops21h 45m
London Luton
Wed 8/5
6:15 am-7:11 pm
3 stops20h 56m
PortlandLondon
PDX - LCY
PDXLCY
Portland
Tue 9/15
7:00 am-9:30 am
2 stops18h 30m
London City
Thu 10/8
9:20 am-11:52 pm
2 stops22h 32m
PortlandLondon
PDX - LGW
PDXLGW
Portland
Sat 9/5
3:50 pm-4:00 pm
2 stops16h 10m
London Gatwick
Sat 9/12
10:25 am-10:11 pm
2 stops19h 46m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
The price you pay for your flight from Portland to London may vary depending on when you book. For the best chance of a lower fare, look to book 16 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, March is the cheapest month in which you can book a flight from Portland to London (average of $465). Flying from Portland to London in September is currently the most expensive (average of $967). 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 Portland to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
The most flights from PDX to LON are scheduled on a Tuesday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).
Crew
Comfort
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,May 2026
SEA - KOA
Crew
Comfort
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,May 2026
SEA - KOA
Crew
Comfort
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,May 2026
SEA - KOA
Crew
Comfort
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,May 2026
SEA - KOA
Crew
Comfort
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,May 2026
SEA - KOA
Crew
Comfort
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,May 2026
SEA - KOA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$472 | Average$660 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$525 | Average$995 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$552 | Average$913 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$558 | Average$769 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$561 | Average$659 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$575 | Average$878 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$600 | Average$1,101 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$607 | Average$993 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$630 | Average$881 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$664 | Average$977 | FlexibilityNo cancel fee | On-time76% |