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Cheap flights Portland — London

from $267 7 908 km ~9h 48m 4 flights found 3 airlines cheapest on Wednesday
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $267 on 07.12.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
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December 2026
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January 2027
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Prices found for 3 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
08 Dec 2026, Tue
Icelandair FI 664
01:45
PDX Portland International Airport
15:55
STN Stansted Airport
14h 10m 2 stops
View this ticket
09 Dec 2026, Wed
Icelandair FI 664
01:45
PDX Portland International Airport
12:30
LHR London Heathrow Airport
10h 45m 1 stop
View this ticket
08 Dec 2026, Tue
British Airways BA 266
04:45
PDX Portland International Airport
14:20
LHR London Heathrow Airport
9h 35m Direct
View this ticket
Route characteristics
Distance
7 908 km
Flight time
9h 48m
Time difference
+8h
Minimum price
from $267 (07.12.2026)
Average price
$269
Maximum price
$273
Cheapest day
Wednesday
Departure airports (1)
PDX Portland International Airport
Arrival airports (3)
LGW London Gatwick Airport LHR London Heathrow Airport STN Stansted Airport
Airlines (3)
FI Icelandair AS Alaska Airlines BA British Airways
Agencies (3)
Gotogate Aviakassa Ubfly
Prices by day of week
Airlines — cheapest prices 3
Icelandair
Icelandair
2 flights · 2 days
$267
Alaska Airlines
Alaska Airlines
1 flights · 1 days
$724
British Airways
British Airways
1 flights · 1 days
$997
Where to buy tickets 3
Gotogate
2 tickets · 2 days
from $267
Aviakassa
1 tickets · 1 days
from $724
Ubfly
1 tickets · 1 days
from $997
Airports

From — Portland (1)

  • PDX Portland International Airport

To — London (3)

  • LGW London Gatwick Airport
  • LHR London Heathrow Airport
  • STN Stansted Airport
Other destinations from Portland
Frequently asked questions about the route Portland — London
How long is the flight from Portland to London?
Approximate flight time — 9h 48m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Portland to London?
The straight-line distance — 7 908 km.
How much do flights from Portland to London cost?
The minimum price over 3 months — from $267 on 07.12.2026.
What is the average ticket price?
The average price — $269. Range: $267 — $273.
What is the time difference between Portland and London?
The difference — +8h.
From which airports does Portland operate flights?
From Portland: PDX (Portland International Airport).
To which airports in London do flights arrive?
To London: LGW (London Gatwick Airport), LHR (London Heathrow Airport), STN (Stansted Airport).
Which airlines fly this route?
This route is served by 3 airlines: Icelandair, Alaska Airlines, British Airways.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $997. Total direct flights found: 1.
Which day of the week is cheapest?
The cheapest day of the week — Wednesday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Portland — London

Flights Portland — London is a popular route. The straight-line distance is 7 908 km. Flight time 9h 48m. Time difference +8h.

From Portland (PDX) flights depart from 1 airport: PDX. To London (LON) — 3 arrival airports: LGW, LHR, STN.

3 airlines operate on this route: Icelandair, Alaska Airlines, British Airways.

The minimum price for the next 3 months — from $267 (07.12.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $269, ranging from $267 to $273. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Wednesday.