Cheap flights from London Heathrow Airport to Portland from £345
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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PDX
28 Jan — 4 Feb1
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 Friday
Cheap 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 29 December 2025.
Mon 29/1209:30LHR - PDX
3 stops31h 45mMultiple Airlines
Tue 13/119:00PDX - LHR
3 stops29h 30mMultiple Airlines
Deal found 28/12£946
Mon 29/1210:20LHR - PDX
2 stops20h 04mScandinavian Airlines
Tue 13/114:36PDX - LHR
2 stops19h 04mScandinavian Airlines
Deal found 28/12£1,065
Mon 29/1216:40LHR - PDX
2 stops36h 27mUnited Airlines
Tue 13/123:05PDX - LHR
1 stop13h 30mUnited Airlines
Deal found 28/12£1,131
Tue 30/1215:00LHR - PDX
1 stop17h 54mAmerican Airlines
Tue 6/107:38PDX - LHR
1 stop15h 12mAmerican Airlines
Deal found 29/12£1,138
Wed 31/1213:45LHR - PDX
Nonstop10h 10mAmerican Airlines
Fri 9/106:00PDX - LHR
1 stop18h 15mAmerican Airlines
Deal found 28/12£1,161
Tue 30/1206:35LHR - PDX
2 stops19h 55mMultiple Airlines
Tue 6/119:00PDX - LHR
1 stop32h 50mMultiple Airlines
Deal found 29/12£1,179
Mon 29/1214:30LHR - PDX
1 stop26h 45mAir Canada
Tue 13/109:50PDX - LHR
1 stop18h 00mAir Canada
Deal found 28/12£1,189
Mon 29/1216:40LHR - PDX
2 stops36h 27mUnited Airlines
Mon 5/123:59PDX - LHR
2 stops22h 21mUnited Airlines
Deal found 28/12£1,191
Wed 31/1212:00LHR - PDX
2 stops31h 58mAir Canada
Fri 9/109:50PDX - LHR
2 stops16h 20mAir Canada
Deal found 28/12£1,211
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 29 December 2025.
Sun 8/312:15LHR - PDX
1 stop12h 45mIcelandair
Thu 12/315:45PDX - LHR
1 stop20h 45mIcelandair
Deal found 28/12£512
Sat 7/313:30LHR - PDX
2 stops19h 05mUnited Airlines
Sat 14/323:10PDX - LHR
1 stop24h 30mUnited Airlines
Deal found 27/12£519
Mon 16/208:20LHR - PDX
1 stop17h 49mBritish Airways
Mon 23/212:02PDX - LHR
1 stop13h 58mBritish Airways
Deal found 27/12£537
Tue 28/409:30LHR - PDX
2 stops20h 29mUnited Airlines
Sat 2/505:15PDX - LHR
1 stop23h 05mUnited Airlines
Deal found 28/12£531
Mon 16/208:20LHR - PDX
1 stop17h 49mBritish Airways
Tue 3/314:05PDX - LHR
1 stop14h 10mBritish Airways
Deal found 27/12£537
Mon 16/206:30LHR - PDX
2 stops20h 19mUnited Airlines
Tue 3/313:40PDX - LHR
2 stops15h 50mUnited Airlines
Deal found 27/12£536
Mon 27/415:40LHR - PDX
Nonstop10h 00mBritish Airways
Tue 5/508:00PDX - LHR
1 stop14h 20mBritish Airways
Deal found 28/12£544
Sat 24/114:30LHR - PDX
1 stop26h 45mUnited Airlines
Sat 31/113:35PDX - LHR
1 stop14h 25mUnited Airlines
Deal found 27/12£538
Mon 27/415:40LHR - PDX
Nonstop10h 00mBritish Airways
Thu 30/408:00PDX - LHR
1 stop14h 20mBritish Airways
Deal found 28/12£544
Mon 9/214:30LHR - PDX
1 stop26h 45mUnited Airlines
Mon 23/222:38PDX - LHR
1 stop13h 57mUnited Airlines
Deal found 28/12£539
Thu 5/311:35LHR - PDX
1 stop14h 17mUnited Airlines
Sun 15/313:00PDX - LHR
1 stop13h 40mUnited Airlines
Deal found 28/12£542
Thu 8/110:25LHR - PDX
1 stop16h 31mUnited Airlines
Thu 29/119:00PDX - LHR
1 stop32h 50mUnited Airlines
Deal found 27/12£546
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 29 December 2025.
Mon 4/515:40LHR - PDX
Nonstop10h 00mBritish Airways
Mon 18/519:30PDX - LHR
Nonstop9h 30mBritish Airways
Deal found 27/12£529
Mon 16/213:45LHR - PDX
Nonstop10h 10mBritish Airways
Mon 23/217:45PDX - LHR
Nonstop9h 35mBritish Airways
Deal found 27/12£530
Mon 16/313:45LHR - PDX
Nonstop10h 10mAmerican Airlines
Mon 30/319:30PDX - LHR
Nonstop9h 30mAmerican Airlines
Deal found 28/12£532
Mon 9/213:45LHR - PDX
Nonstop10h 10mAmerican Airlines
Mon 23/217:45PDX - LHR
Nonstop9h 35mAmerican Airlines
Deal found 28/12£534
Mon 27/415:40LHR - PDX
Nonstop10h 00mAmerican Airlines
Thu 30/419:30PDX - LHR
Nonstop9h 30mAmerican Airlines
Deal found 28/12£544
Mon 9/213:45LHR - PDX
Nonstop10h 10mMultiple Airlines
Mon 23/217:45PDX - LHR
Nonstop9h 35mMultiple Airlines
Deal found 28/12£555
Mon 27/415:40LHR - PDX
Nonstop10h 00mAmerican Airlines
Tue 5/519:30PDX - LHR
Nonstop9h 30mAmerican Airlines
Deal found 26/12£564
Mon 27/415:40LHR - PDX
Nonstop10h 00mAmerican Airlines
Sat 2/519:30PDX - LHR
Nonstop9h 30mAmerican Airlines
Deal found 28/12£574
Wed 14/113:45LHR - PDX
Nonstop10h 10mMultiple Airlines
Sun 18/117:45PDX - LHR
Nonstop9h 35mMultiple Airlines
Deal found 29/12£585
Wed 1/415:40LHR - PDX
Nonstop10h 00mAmerican Airlines
Wed 22/419:30PDX - LHR
Nonstop9h 30mAmerican Airlines
Deal found 28/12£594
Sat 18/415:40LHR - PDX
Nonstop10h 00mBritish Airways
Sat 25/419:30PDX - LHR
Nonstop9h 30mBritish Airways
Deal found 27/12£604
Last-minute flights from Heathrow to Portland
Discover last-minute flight deals from Heathrow to Portland. Data last updated 29 December 2025 and is based on user searches.
Sat 17/114:30LHR - PDX
2 stops32h 18mAir Canada
Sun 8/219:05PDX - LHR
1 stop32h 45mAir Canada
Deal found 27/12£525
Wed 21/107:30LHR - PDX
2 stops21h 42mUnited Airlines
Mon 26/107:00PDX - LHR
1 stop14h 55mUnited Airlines
Deal found 27/12£519
Wed 21/113:45LHR - PDX
Nonstop10h 10mBritish Airways
Mon 26/107:38PDX - LHR
1 stop15h 12mBritish Airways
Deal found 27/12£532
Mon 26/112:00LHR - PDX
1 stop17h 49mUnited Airlines
Fri 6/207:00PDX - LHR
1 stop16h 55mUnited Airlines
Deal found 27/12£401
Mon 26/112:35LHR - PDX
1 stop15h 52mBritish Airways
Mon 2/212:35PDX - LHR
1 stop15h 05mBritish Airways
Deal found 29/12£518
Mon 26/106:30LHR - PDX
2 stops20h 25mLufthansa
Mon 2/207:00PDX - LHR
1 stop14h 55mLufthansa
Deal found 27/12£521
Mon 26/106:30LHR - PDX
2 stops20h 26mUnited Airlines
Mon 2/207:00PDX - LHR
2 stops18h 45mUnited Airlines
Deal found 29/12£523
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 29 December 2025.
Sun 1/314:50LHR - PDX
2 stops38h 33mMultiple Airlines
Deal found 26/12£345
Thu 5/214:50LHR - PDX
3 stops37h 37mMultiple Airlines
Deal found 28/12£359
Sun 1/214:50LHR - PDX
2 stops37h 37mMultiple Airlines
Deal found 28/12£361
Thu 7/522:15LHR - PDX
3 stops46h 37mMultiple Airlines
Deal found 28/12£364
Fri 30/114:50LHR - PDX
3 stops31h 10mMultiple Airlines
Deal found 28/12£367
Mon 2/214:50LHR - PDX
2 stops35h 09mMultiple Airlines
Deal found 28/12£369
Tue 3/214:50LHR - PDX
2 stops35h 09mMultiple Airlines
Deal found 28/12£370
Fri 6/214:50LHR - PDX
3 stops31h 10mMultiple Airlines
Deal found 28/12£371
Mon 2/320:50LHR - PDX
2 stops55h 10mMultiple Airlines
Deal found 26/12£372
Tue 27/120:50LHR - PDX
3 stops31h 58mMultiple Airlines
Deal found 29/12£374
Wed 11/220:50LHR - PDX
2 stops56h 33mMultiple Airlines
Deal found 28/12£375
Sat 18/410:30LHR - PDX
3 stops34h 05mMultiple Airlines
Deal found 28/12£377
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 29 December 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 29 December 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
Sun 8/3
12:15-18:00
1 stop12h 45m
Portland
Thu 12/3
15:45-19:30
1 stop20h 45m
£512
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Sat 7/3
13:30-00:35
2 stops19h 05m
Portland
Sat 14/3
23:10-06:40
1 stop24h 30m
£519
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Tue 28/4
09:30-21:59
2 stops20h 29m
Portland
Sat 2/5
05:15-12:20
1 stop23h 05m
£531
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 16/2
06:30-18:49
2 stops20h 19m
Portland
Tue 3/3
13:40-13:30
2 stops15h 50m
£536
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 16/2
08:20-18:09
1 stop17h 49m
Portland
Mon 23/2
12:02-10:00
1 stop13h 58m
£537
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 16/2
08:20-18:09
1 stop17h 49m
Portland
Tue 3/3
14:05-12:15
1 stop14h 10m
£537
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Sat 24/1
14:30-09:15
1 stop26h 45m
Portland
Sat 31/1
13:35-12:00
1 stop14h 25m
£538
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 9/2
14:30-09:15
1 stop26h 45m
Portland
Mon 23/2
22:38-20:35
1 stop13h 57m
£539
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Thu 5/3
11:35-17:52
1 stop14h 17m
Portland
Sun 15/3
13:00-09:40
1 stop13h 40m
£542
LondonPortland
LHR - PDX
LHRPDX
London Heathrow
Mon 27/4
15:40-17:40
Nonstop10h 00m
Portland
Tue 5/5
08:00-06:20
1 stop14h 20m
£544
Flights are sorted by cheapest return flights first.
Deals found on 28/12
Showing 1-10 of 21 results
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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 26 December 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Portland (average of £461). Flying from London Heathrow Airport to Portland in July is currently the most expensive (average of £553). 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 29 December 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Portland as you normally would.
How often are flights from London to Portland delayed?
About 21% of weekly flights between London and Portland have experienced delays in the past year, with the average delay time being 118 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 21% 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 £467.
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 49m.
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 29 December 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 3 inbound flights from London Heathrow per day.
How long is the flight from London Heathrow Airport to Portland?
Icelandair, United Airlines, and British Airways can get you from London Heathrow Airport to Portland in just under 12h 45m. Your travel time can differ by up to 6h 20m. 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 £425, 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 Air Canada - these airlines can fly you to your destination from £492 and £494, respectively. Users have found that Icelandair is 34% 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 (£324), British Airways (£410), and Virgin Atlantic (£446).
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 (72%), Alaska Airlines (72%), Finnair( 72%).
What are the cheapest flights from London Heathrow Airport to Portland?
Looking at all options, your cheapest flight can be booked for £568. While the most popular route (London Heathrow - Portland) can be booked for £401 on average, our data indicates £715 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Portland (average of £461). Flying from London Heathrow Airport to Portland in July is currently the most expensive (average of £553). 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 29 December 2025.
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 29 December 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 29 December 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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