Cheap flights from London Heathrow Airport to Portland from £336
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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PDX
14 Dec — 21 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Portland are usually found in September or November, booked 61 days in advance, depart on a Wednesday or Thursday and return on a Friday
Find flight deals from Heathrow to Portland
Enter your travel dates to find the best prices.
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 14 November 2025.
Tue 18/1120:35LHR - PDX
1 stop28h 25mIcelandair
Tue 25/1114:45PDX - LHR
1 stop12h 05mIcelandair
Deal found 13/11£540
Tue 9/1220:35LHR - PDX
1 stop28h 25mIcelandair
Mon 15/1214:45PDX - LHR
1 stop12h 05mIcelandair
Deal found 12/11£541
Sun 23/1120:35LHR - PDX
1 stop28h 25mIcelandair
Mon 1/1214:45PDX - LHR
1 stop12h 05mIcelandair
Deal found 13/11£552
Wed 10/1212:15LHR - PDX
1 stop12h 45mIcelandair
Mon 15/1214:45PDX - LHR
1 stop12h 05mIcelandair
Deal found 11/11£553
Tue 2/1220:35LHR - PDX
1 stop28h 25mIcelandair
Tue 9/1214:45PDX - LHR
1 stop20h 45mIcelandair
Deal found 14/11£561
Wed 10/1209:30LHR - PDX
2 stops19h 45mUnited Airlines
Mon 15/1205:00PDX - LHR
1 stop20h 40mUnited Airlines
Deal found 11/11£592
Wed 10/1213:45LHR - PDX
Nonstop10h 10mBritish Airways
Mon 15/1217:45PDX - LHR
Nonstop9h 35mBritish Airways
Deal found 11/11£593
Sat 22/1120:35LHR - PDX
1 stop28h 25mIcelandair
Mon 8/1214:45PDX - LHR
1 stop12h 05mIcelandair
Deal found 13/11£602
Wed 10/1213:25LHR - PDX
2 stops30h 23mAir Canada
Mon 12/115:15PDX - LHR
2 stops34h 55mAir Canada
Deal found 12/11£603
Mon 8/1214:30LHR - PDX
1 stop26h 45mAir Canada
Wed 24/1215:15PDX - LHR
1 stop12h 35mAir Canada
Deal found 13/11£613
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 14 November 2025.
Sat 25/421:25LHR - PDX
1 stop28h 35mIcelandair
Sat 2/515:45PDX - LHR
1 stop20h 35mIcelandair
Deal found 12/11£533
Wed 10/1209:30LHR - PDX
2 stops19h 45mUnited Airlines
Mon 15/1205:00PDX - LHR
1 stop20h 40mUnited Airlines
Deal found 11/11£592
Tue 3/306:00LHR - PDX
2 stops25h 32mBritish Airways
Sun 8/314:16PDX - LHR
1 stop36h 44mBritish Airways
Deal found 12/11£610
Wed 10/1206:30LHR - PDX
1 stop12h 55mDelta
Sun 14/1200:32PDX - LHR
1 stop22h 33mDelta
Deal found 11/11£616
Tue 2/1220:35LHR - PDX
1 stop28h 25mIcelandair
Tue 9/1214:45PDX - LHR
1 stop20h 45mIcelandair
Deal found 14/11£561
Mon 12/108:30LHR - PDX
2 stops22h 02mUnited Airlines
Mon 19/107:00PDX - LHR
1 stop20h 15mUnited Airlines
Deal found 11/11£598
Thu 5/320:35LHR - PDX
1 stop28h 25mIcelandair
Mon 9/315:45PDX - LHR
1 stop12h 05mIcelandair
Deal found 13/11£597
Wed 4/314:30LHR - PDX
1 stop26h 35mUnited Airlines
Mon 9/307:11PDX - LHR
1 stop17h 44mUnited Airlines
Deal found 13/11£616
Wed 13/509:30LHR - PDX
2 stops19h 03mUnited Airlines
Sun 17/523:55PDX - LHR
1 stop22h 50mUnited Airlines
Deal found 12/11£616
Wed 11/211:35LHR - PDX
2 stops21h 04mUnited Airlines
Thu 19/213:18PDX - LHR
1 stop12h 22mUnited Airlines
Deal found 11/11£622
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 14 November 2025.
Wed 10/1213:45LHR - PDX
Nonstop10h 10mBritish Airways
Mon 15/1217:45PDX - LHR
Nonstop9h 35mBritish Airways
Deal found 11/11£593
Wed 6/515:40LHR - PDX
Nonstop10h 00mBritish Airways
Wed 13/519:30PDX - LHR
Nonstop9h 30mBritish Airways
Deal found 12/11£606
Wed 6/515:40LHR - PDX
Nonstop10h 00mBritish Airways
Mon 11/519:30PDX - LHR
Nonstop9h 30mBritish Airways
Deal found 12/11£611
Wed 4/313:45LHR - PDX
Nonstop10h 10mMultiple Airlines
Wed 11/318:45PDX - LHR
Nonstop9h 35mMultiple Airlines
Deal found 12/11£616
Sun 1/313:45LHR - PDX
Nonstop10h 10mBritish Airways
Tue 31/319:30PDX - LHR
Nonstop9h 30mBritish Airways
Deal found 12/11£622
Fri 1/515:40LHR - PDX
Nonstop10h 00mBritish Airways
Wed 13/519:30PDX - LHR
Nonstop9h 30mBritish Airways
Deal found 13/11£623
Tue 14/415:40LHR - PDX
Nonstop10h 00mAmerican Airlines
Tue 21/419:30PDX - LHR
Nonstop9h 30mAmerican Airlines
Deal found 13/11£627
Mon 4/515:40LHR - PDX
Nonstop10h 00mAmerican Airlines
Mon 18/519:30PDX - LHR
Nonstop9h 30mAmerican Airlines
Deal found 12/11£629
Fri 1/515:40LHR - PDX
Nonstop10h 00mBritish Airways
Tue 5/519:30PDX - LHR
Nonstop9h 30mBritish Airways
Deal found 12/11£634
Wed 11/213:45LHR - PDX
Nonstop10h 10mBritish Airways
Wed 18/217:45PDX - LHR
Nonstop9h 35mBritish Airways
Deal found 11/11£635
Mon 12/113:45LHR - PDX
Nonstop10h 10mAmerican Airlines
Mon 19/117:45PDX - LHR
Nonstop9h 35mAmerican Airlines
Deal found 11/11£636
Wed 26/1113:45LHR - PDX
Nonstop10h 10mAmerican Airlines
Wed 21/117:45PDX - LHR
Nonstop9h 35mAmerican Airlines
Deal found 12/11£641
Last-minute flights from Heathrow to Portland
Discover last-minute flight deals from Heathrow to Portland. Data last updated 14 November 2025 and is based on user searches.
Sat 22/1120:35LHR - PDX
1 stop28h 25mIcelandair
Mon 8/1214:45PDX - LHR
1 stop12h 05mIcelandair
Deal found 13/11£602
Sun 23/1120:35LHR - PDX
1 stop28h 25mIcelandair
Mon 1/1214:45PDX - LHR
1 stop12h 05mIcelandair
Deal found 13/11£552
Tue 2/1220:35LHR - PDX
1 stop28h 25mIcelandair
Tue 9/1214:45PDX - LHR
1 stop20h 45mIcelandair
Deal found 11/11£562
Tue 9/1220:35LHR - PDX
1 stop28h 25mIcelandair
Mon 15/1214:45PDX - LHR
1 stop12h 05mIcelandair
Deal found 12/11£541
Tue 9/1220:35LHR - PDX
1 stop28h 25mIcelandair
Tue 16/1214:45PDX - LHR
1 stop12h 05mIcelandair
Deal found 11/11£542
Tue 9/1207:30LHR - PDX
2 stops22h 15mUnited Airlines
Tue 16/1223:59PDX - LHR
1 stop23h 56mUnited Airlines
Deal found 11/11£612
Wed 10/1212:15LHR - PDX
1 stop12h 45mIcelandair
Mon 15/1214:45PDX - LHR
1 stop12h 05mIcelandair
Deal found 11/11£553
Wed 10/1209:30LHR - PDX
2 stops19h 45mUnited Airlines
Mon 15/1206:00PDX - LHR
2 stops16h 40mUnited Airlines
Deal found 11/11£592
Wed 10/1213:45LHR - PDX
Nonstop10h 10mBritish Airways
Mon 15/1217:45PDX - LHR
Nonstop9h 35mBritish Airways
Deal found 11/11£593
Wed 10/1213:25LHR - PDX
2 stops30h 23mAir Canada
Mon 12/115:15PDX - LHR
2 stops34h 55mAir Canada
Deal found 12/11£603
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 14 November 2025.
Thu 22/106:40LHR - PDX
3 stops45h 47mMultiple Airlines
Deal found 11/11£336
Sat 17/114:50LHR - PDX
2 stops34h 32mMultiple Airlines
Deal found 11/11£343
Fri 16/109:55LHR - PDX
3 stops39h 59mMultiple Airlines
Deal found 12/11£362
Sun 25/114:50LHR - PDX
2 stops41h 02mMultiple Airlines
Deal found 12/11£367
Tue 20/106:40LHR - PDX
3 stops34h 55mMultiple Airlines
Deal found 11/11£368
Sun 18/114:50LHR - PDX
2 stops34h 32mMultiple Airlines
Deal found 11/11£374
Mon 19/114:50LHR - PDX
2 stops34h 00mMultiple Airlines
Deal found 11/11£375
Cheap 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 14 November 2025.
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 14 November 2025.
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
Sat 25/4
21:25-18:00
1 stop28h 35m
Portland
Sat 2/5
15:45-20:20
1 stop20h 35m
£533
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Tue 2/12
20:35-17:00
1 stop28h 25m
Portland
Tue 9/12
14:45-19:30
1 stop20h 45m
£561
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Wed 10/12
09:30-21:15
2 stops19h 45m
Portland
Mon 15/12
05:00-09:40
1 stop20h 40m
£592
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Thu 5/3
20:35-17:00
1 stop28h 25m
Portland
Mon 9/3
15:45-10:50
1 stop12h 05m
£597
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 12/1
08:30-22:32
2 stops22h 02m
Portland
Mon 19/1
07:00-11:15
1 stop20h 15m
£598
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Tue 3/3
06:00-23:32
2 stops25h 32m
Portland
Sun 8/3
14:16-10:00
1 stop36h 44m
£610
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Wed 10/12
06:30-11:25
1 stop12h 55m
Portland
Sun 14/12
00:32-07:05
1 stop22h 33m
£616
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Wed 4/3
14:30-09:05
1 stop26h 35m
Portland
Mon 9/3
07:11-07:55
1 stop17h 44m
£616
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Wed 13/5
09:30-20:33
2 stops19h 03m
Portland
Sun 17/5
23:55-06:45
1 stop22h 50m
£616
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Wed 11/2
11:35-00:39
2 stops21h 04m
Portland
Thu 19/2
13:18-09:40
1 stop12h 22m
£622
Flights are sorted by cheapest return flights first.
Deals found on 11/11
Showing 1-10 of 19 results
1
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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.
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 7 November 2025.
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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Portland (average of £480). Flying from London Heathrow Airport to Portland in July is currently the most expensive (average of £570). 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.
What is the cheapest time of day to fly from LHR to PDX?
Find hourly flight availability from Heathrow to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 November 2025.
One of the essential ways to save on airfare from London Heathrow Airport to Portland is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 16% on airfare.
What is the cheapest day to fly from London Heathrow Airport to Portland?
Use this chart to determine the cheapest time to fly return from Heathrow to Portland. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their London Heathrow Airport to Portland flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
How much does it cost for a return flight from London Heathrow Airport to Portland?
How often are flights from London to Portland delayed?
About 22% of weekly flights between London and Portland have experienced delays in the past year, with the average delay time being 121 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?
Monday 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.
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 22% 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 42% of one-stop itineraries from London Heathrow Airport to Portland on Cheapflights.
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 52m.
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 52m.
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 14 November 2025.
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.
My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
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 2 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 19h 45m. Your travel time can differ by up to 8h 50m. 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 £437, 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 Air Canada and Finnair - these airlines can fly you to your destination from £507 and £512, respectively. Users have found that Icelandair is 34% cheaper than the other options available to this destination.
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 (59%), Alaska Airlines (59%), Finnair( 59%).
What are the cheapest flights from London Heathrow Airport to Portland?
Looking at all options, your cheapest flight can be booked for £603. While the most popular route (London Heathrow - Portland) can be booked for £524 on average, our data indicates £983 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Portland (average of £480). Flying from London Heathrow Airport to Portland in July is currently the most expensive (average of £570). 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 14 November 2025.
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 14 November 2025.
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 14 November 2025.
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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