Cheap flights from London Heathrow Airport to Portland from £323
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PDX
11 Mar — 18 Mar1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Portland are usually found in November or September, booked 61 days in advance, depart on a Wednesday or Thursday and return on a Saturday
Cheap flight deals from Heathrow to Portland
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Cheapest flights from Heathrow to Portland
Explore the most affordable flight options available from Heathrow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 February 2026.
Fri 15/515:40
LHR
-
PDX
Nonstop10h 00m
British Airways
Fri 22/519:30
PDX
-
LHR
Nonstop9h 30m
British Airways
Deal found 7/2£342
Sat 16/509:30
LHR
-
PDX
2 stops35h 05m
Air Canada
Sun 17/519:45
PDX
-
LHR
1 stop33h 35m
Air Canada
Deal found 5/2£437
Wed 18/312:15
LHR
-
PDX
1 stop12h 45m
Icelandair
Thu 26/315:45
PDX
-
LHR
1 stop12h 05m
Icelandair
Deal found 6/2£531
Tue 10/320:35
LHR
-
PDX
1 stop28h 25m
Icelandair
Tue 17/315:45
PDX
-
LHR
1 stop12h 05m
Icelandair
Deal found 7/2£543
Tue 10/320:35
LHR
-
PDX
1 stop28h 25m
Icelandair
Tue 31/315:30
PDX
-
LHR
1 stop20h 50m
Icelandair
Deal found 7/2£544
Tue 24/320:35
LHR
-
PDX
1 stop28h 25m
Icelandair
Tue 31/315:30
PDX
-
LHR
1 stop12h 25m
Icelandair
Deal found 7/2£555
Mon 31/821:25
LHR
-
PDX
1 stop22h 20m
Icelandair
Thu 17/915:30
PDX
-
LHR
1 stop20h 50m
Icelandair
Deal found 9/2£556
Wed 13/513:05
LHR
-
PDX
1 stop12h 55m
Icelandair
Wed 20/519:05
PDX
-
LHR
1 stop17h 15m
Icelandair
Deal found 7/2£557
Sat 2/509:30
LHR
-
PDX
2 stops41h 16m
Air Canada
Sun 10/519:45
PDX
-
LHR
1 stop33h 35m
Air Canada
Deal found 6/2£565
Fri 1/514:05
LHR
-
PDX
2 stops54h 31m
Air Canada
Wed 13/519:45
PDX
-
LHR
1 stop33h 35m
Air Canada
Deal found 8/2£567
Sat 18/421:25
LHR
-
PDX
1 stop28h 35m
Icelandair
Tue 28/415:30
PDX
-
LHR
1 stop12h 25m
Icelandair
Deal found 7/2£569
Mon 16/309:30
LHR
-
PDX
2 stops20h 34m
Multiple Airlines
Mon 30/307:00
PDX
-
LHR
1 stop20h 45m
Multiple Airlines
Deal found 7/2£573
Best flights from Heathrow to Portland
Discover carefully curated flight deals from Heathrow to Portland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 February 2026.
Tue 24/320:35
LHR
-
PDX
1 stop28h 25m
Icelandair
Tue 31/315:30
PDX
-
LHR
1 stop12h 25m
Icelandair
Deal found 9/2£586
Wed 18/308:30
LHR
-
PDX
2 stops20h 28m
United Airlines
Thu 26/307:30
PDX
-
LHR
2 stops19h 10m
United Airlines
Deal found 6/2£593
Mon 16/314:30
LHR
-
PDX
1 stop35h 00m
Air Canada
Mon 30/315:15
PDX
-
LHR
1 stop14h 05m
Air Canada
Deal found 8/2£608
Tue 10/308:30
LHR
-
PDX
2 stops21h 15m
United Airlines
Tue 31/310:50
PDX
-
LHR
1 stop14h 10m
United Airlines
Deal found 7/2£595
Mon 9/312:15
LHR
-
PDX
1 stop12h 45m
Icelandair
Mon 16/315:45
PDX
-
LHR
1 stop12h 05m
Icelandair
Deal found 9/2£602
Mon 9/307:30
LHR
-
PDX
2 stops21h 28m
United Airlines
Mon 16/307:00
PDX
-
LHR
2 stops16h 40m
United Airlines
Deal found 9/2£595
Wed 11/307:30
LHR
-
PDX
2 stops17h 22m
United Airlines
Wed 18/308:30
PDX
-
LHR
2 stops17h 40m
United Airlines
Deal found 9/2£595
Wed 13/506:55
LHR
-
PDX
2 stops18h 49m
United Airlines
Wed 20/507:15
PDX
-
LHR
1 stop16h 10m
United Airlines
Deal found 7/2£605
Mon 16/311:35
LHR
-
PDX
1 stop16h 35m
United Airlines
Mon 30/323:15
PDX
-
LHR
1 stop13h 25m
United Airlines
Deal found 6/2£620
Direct flights from Heathrow to Portland
Explore direct flight options from Heathrow to Portland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 February 2026.
Fri 15/515:40
LHR
-
PDX
Nonstop10h 00m
British Airways
Fri 22/519:30
PDX
-
LHR
Nonstop9h 30m
British Airways
Deal found 7/2£342
Mon 16/313:45
LHR
-
PDX
Nonstop10h 10m
British Airways
Mon 30/319:30
PDX
-
LHR
Nonstop9h 30m
British Airways
Deal found 9/2£605
Mon 9/313:45
LHR
-
PDX
Nonstop10h 10m
Multiple Airlines
Mon 16/318:45
PDX
-
LHR
Nonstop9h 35m
Multiple Airlines
Deal found 6/2£619
Mon 16/313:45
LHR
-
PDX
Nonstop10h 10m
American Airlines
Mon 30/319:30
PDX
-
LHR
Nonstop9h 30m
American Airlines
Deal found 7/2£630
Mon 4/515:40
LHR
-
PDX
Nonstop10h 00m
Iberia
Mon 18/519:30
PDX
-
LHR
Nonstop9h 30m
Iberia
Deal found 6/2£636
Mon 9/313:45
LHR
-
PDX
Nonstop10h 10m
American Airlines
Mon 16/318:45
PDX
-
LHR
Nonstop9h 35m
American Airlines
Deal found 9/2£643
Mon 23/313:45
LHR
-
PDX
Nonstop10h 10m
Iberia
Mon 30/319:30
PDX
-
LHR
Nonstop9h 30m
Iberia
Deal found 6/2£661
Sun 8/313:45
LHR
-
PDX
Nonstop10h 10m
British Airways
Sun 15/318:45
PDX
-
LHR
Nonstop9h 35m
British Airways
Deal found 6/2£663
Last-minute flights from Heathrow to Portland
Discover last-minute flight deals from Heathrow to Portland. Data last updated 9 February 2026 and is based on user searches.
Mon 9/309:30
LHR
-
PDX
2 stops20h 34m
Multiple Airlines
Mon 16/307:00
PDX
-
LHR
1 stop15h 55m
Multiple Airlines
Deal found 6/2£579
Mon 9/309:30
LHR
-
PDX
2 stops20h 34m
Lufthansa
Mon 16/313:00
PDX
-
LHR
1 stop13h 40m
Lufthansa
Deal found 9/2£584
Tue 10/320:35
LHR
-
PDX
1 stop28h 25m
Icelandair
Tue 17/315:45
PDX
-
LHR
1 stop12h 05m
Icelandair
Deal found 7/2£543
Tue 10/320:35
LHR
-
PDX
1 stop28h 25m
Icelandair
Tue 31/315:30
PDX
-
LHR
1 stop20h 50m
Icelandair
Deal found 7/2£544
Wed 11/309:00
LHR
-
PDX
2 stops20h 45m
Multiple Airlines
Wed 18/307:00
PDX
-
LHR
1 stop15h 55m
Multiple Airlines
Deal found 9/2£582
Mon 16/309:30
LHR
-
PDX
2 stops20h 34m
Lufthansa
Mon 30/315:15
PDX
-
LHR
1 stop14h 05m
Lufthansa
Deal found 6/2£565
Mon 16/309:30
LHR
-
PDX
2 stops20h 34m
Multiple Airlines
Mon 30/307:00
PDX
-
LHR
1 stop20h 45m
Multiple Airlines
Deal found 7/2£573
Mon 16/306:30
LHR
-
PDX
1 stop12h 55m
Virgin Atlantic
Mon 30/306:30
PDX
-
LHR
1 stop16h 15m
Virgin Atlantic
Deal found 6/2£577
Wed 18/312:15
LHR
-
PDX
1 stop12h 45m
Icelandair
Thu 26/315:45
PDX
-
LHR
1 stop12h 05m
Icelandair
Deal found 6/2£531
Tue 24/320:35
LHR
-
PDX
1 stop28h 25m
Icelandair
Tue 31/315:30
PDX
-
LHR
1 stop12h 25m
Icelandair
Deal found 7/2£555
One-way flights from Heathrow to Portland
Search for one-way flight options from Heathrow to Portland. Find affordable one-way fares based on user searches. Data last updated 9 February 2026.
Thu 12/314:50
LHR
-
PDX
2 stops25h 08m
Multiple Airlines
Deal found 6/2£323
Wed 11/314:50
LHR
-
PDX
2 stops28h 02m
Multiple Airlines
Deal found 6/2£354
Mon 9/314:50
LHR
-
PDX
3 stops34h 15m
Multiple Airlines
Deal found 6/2£362
Tue 17/314:50
LHR
-
PDX
2 stops49h 08m
Multiple Airlines
Deal found 6/2£363
Sun 26/421:25
LHR
-
PDX
1 stop28h 35m
Icelandair
Deal found 9/2£368
Sun 3/521:25
LHR
-
PDX
1 stop28h 35m
Icelandair
Deal found 8/2£372
Find flight deals from Heathrow to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 February 2026.
Customise your flight search to find flights from Heathrow to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 9 February 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Portland that are best for you.
Fly from
Heathrow
Fly to
Portland
Route
Depart
Return
Price
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Tue 24/3
20:35-18:00
1 stop28h 25m
Portland
Tue 31/3
15:30-11:55
1 stop12h 25m
£586
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Wed 18/3
08:30-21:58
2 stops20h 28m
Portland
Thu 26/3
07:30-09:40
2 stops19h 10m
£593
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Tue 10/3
08:30-22:45
2 stops21h 15m
Portland
Tue 31/3
10:50-09:00
1 stop14h 10m
£595
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 9/3
07:30-21:58
2 stops21h 28m
Portland
Mon 16/3
07:00-06:40
2 stops16h 40m
£595
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Wed 11/3
07:30-17:52
2 stops17h 22m
Portland
Wed 18/3
08:30-09:10
2 stops17h 40m
£595
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 9/3
12:15-18:00
1 stop12h 45m
Portland
Mon 16/3
15:45-10:50
1 stop12h 05m
£602
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Wed 13/5
06:55-17:44
2 stops18h 49m
Portland
Wed 20/5
07:15-07:25
1 stop16h 10m
£605
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 16/3
14:30-18:30
1 stop35h 00m
Portland
Mon 30/3
15:15-13:20
1 stop14h 05m
£608
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 16/3
11:35-21:10
1 stop16h 35m
Portland
Mon 30/3
23:15-20:40
1 stop13h 25m
£620
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Tue 28/4
21:25-18:00
1 stop28h 35m
£368
Flights are sorted by cheapest return flights first.
Deals found on 7/2
Showing 1-10 of 13 results
1
2
Best time to book a flight from Heathrow to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Heathrow with our price prediction graph.
LHR-PDX
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Portland
Prices
Delays
More
How far ahead should I book a flight from London Heathrow Airport to Portland?
Use this chart to determine the optimal time to book a return flight from Heathrow to Portland. Price data was last updated on 6 February 2026.
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Portland, you should look to book at least 61 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.
What is the cheapest month to book a flight from London Heathrow Airport to Portland?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Portland (average of £456). Flying from London Heathrow Airport to Portland in January is currently the most expensive (average of £548). 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.
How often are flights from London to Portland delayed?
About 20% of weekly flights between London and Portland have experienced delays in the past year, with the average delay time being 119 minutes.
What is the most punctual flight time for London to Portland flights?
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.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Portland flights?
Over the past year, British Airways have had the lowest number of delays on this route, with just 20% of flights being delayed.
What’s the top stopover airport for flights from London Heathrow Airport to Portland?
Share of one-stop return flights from London Heathrow Airport to Portland chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 40% of one-stop itineraries from London Heathrow Airport to Portland on Cheapflights.
What’s the cheapest stopover airport for flights from London Heathrow Airport to Portland?
Average return fare for one-stop flights from London Heathrow Airport to Portland, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Calgary (YYC) is the most affordable one-stop option, with an average return flight price of £462.
What’s the fastest stopover option from London Heathrow Airport to Portland?
Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Portland, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Vancouver (YVR) have the shortest average one-way travel time for one-stop routes: 12h 44m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Portland?
Average stopover duration for one-stop one-way flights from London Heathrow Airport to Portland, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Salt Lake City (SLC) offer the fastest connection on this route, with an average stopover time of 1h 15m.
Reviews of airlines servicing Portland
Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated 9 February 2026.
Read reviews from past customers who have flown with Finnair, Virgin Atlantic, andIcelandair
from London Heathrow Airport to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
baggage allowance was different between the outgoing and inbound flights
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Portland from London Heathrow?
Portland (PDX), located 6.0 mi from the city center, is the airport you fly into when you book flights from London Heathrow to Portland. 11 airlines have flights to Portland from London Heathrow on a regular basis. Booking flights from London Heathrow to Portland should not be difficult; the airport handles an average of 4 inbound flights from London Heathrow per day.
How long is the flight from London Heathrow Airport to Portland?
Icelandair and United Airlines can get you from London Heathrow Airport to Portland in just under 20h 28m. Your travel time can differ by up to 7h 57m. London Heathrow Airport and Portland are separated by a distance of 4896 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from London Heathrow Airport to Portland round-trip?
Currently priced at £435, Icelandair will fly you from London Heathrow Airport to Portland and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Lufthansa - these airlines can fly you to your destination from £487 and £488, respectively. Users have found that Icelandair is 33% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from London Heathrow Airport to Portland one-way?
The cheapet airlines for a one-way flight from London Heathrow Airport to Portland are Icelandair (£321), British Airways (£419), and Virgin Atlantic (£441).
What are the most reliable airlines from London Heathrow Airport to Portland?
Before booking your flight to Portland from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (90%), Alaska Airlines (90%), Aer Lingus( 90%).
What are the cheapest flights from London Heathrow Airport to Portland?
Looking at all options, your cheapest flight can be booked for £552. While the most popular route (London Heathrow - Portland) can be booked for £342 on average, our data indicates £917 when flying from London Heathrow Airport to Portland.
Can I find deals for business class flights from Heathrow to Portland?
Yes. Cheapflights offers flight deals from Heathrow to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London Heathrow Airport to Portland?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Portland (average of £456). Flying from London Heathrow Airport to Portland in January is currently the most expensive (average of £548). 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.
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 9 February 2026.
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 9 February 2026.
Discover the top 10 airlines that operate flights from Heathrow to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 9 February 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Heathrow to Portland?
Cheapflights helps you search for flights from Heathrow to Portland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Portland?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Portland for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Heathrow to Portland with no change fees?
Yes, we can. To see specific flights from Heathrow to Portland with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Heathrow to Portland become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Portland from Heathrow today and book when prices fit your budget.
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