Cheap flights from London Heathrow Airport to Portland from £397
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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PDX
12 Sep — 19 Sep1
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 February, booked 37 days in advance, depart on a Wednesday or Friday and return on a Tuesday
Cheap flight deals from Heathrow to Portland
Enter your travel dates to find the best prices.
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Best
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One-way
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 13 August 2026.
Tue 1/1220:35 -
1 stop28h 25m
Thu 22/415:30 -
1 stop20h 50m
Deal found 11/8£634
Mon 21/921:25 -
1 stop28h 30m
Mon 5/1015:30 -
1 stop12h 25m
Deal found 8/8£637
Wed 18/1112:15 -
1 stop12h 45m
Mon 30/1114:45 -
1 stop20h 45m
Deal found 8/8£639
Sat 21/1113:50 -
1 stop37h 53m
Thu 3/1207:00 -
1 stop21h 15m
Deal found 10/8£640
Wed 23/909:55 -
1 stop18h 41m
Tue 29/917:55 -
1 stop15h 40m
Deal found 10/8£642
Fri 4/921:25 -
1 stop22h 25m
Fri 11/919:00 -
1 stop17h 20m
Deal found 9/8£644
Wed 7/1013:05 -
1 stop12h 50m
Wed 14/1015:30 -
1 stop12h 25m
Deal found 10/8£645
Mon 21/906:15 -
3 stops35h 16m
Mon 5/1015:30 -
2 stops19h 00m
Deal found 10/8£646
Fri 30/1006:40 -
2 stops22h 39m
Fri 6/1110:56 -
2 stops23h 34m
Deal found 12/8£651
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 13 August 2026.
Fri 6/1110:20 -
2 stops19h 59m
Tue 10/1113:05 -
2 stops20h 35m
Deal found 8/8£661
Thu 10/911:05 -
2 stops21h 32m
Thu 17/908:25 -
1 stop14h 30m
Deal found 12/8£691
Fri 6/1112:15 -
1 stop12h 45m
Tue 10/1114:45 -
1 stop20h 45m
Deal found 10/8£694
Wed 7/1015:40 -
Nonstop10h 00m
Wed 14/1019:30 -
Nonstop9h 30m
Deal found 8/8£726
Thu 10/1210:20 -
2 stops20h 20m
Mon 14/1213:05 -
2 stops20h 35m
Deal found 10/8£693
Mon 21/914:45 -
1 stop16h 38m
Mon 5/1019:30 -
Nonstop9h 30m
Deal found 10/8£731
Fri 28/810:20 -
2 stops20h 24m
Wed 2/907:00 -
2 stops25h 00m
Deal found 9/8£698
Fri 9/1006:40 -
2 stops18h 24m
Wed 14/1013:05 -
3 stops24h 30m
Deal found 12/8£702
Thu 8/1021:05 -
3 stops27h 59m
Wed 14/1010:56 -
2 stops26h 44m
Deal found 10/8£728
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 13 August 2026.
Wed 9/915:40 -
Nonstop10h 00m
Wed 30/919:30 -
Nonstop9h 30m
Deal found 9/8£700
Wed 18/1113:35 -
Nonstop10h 15m
Mon 30/1117:45 -
Nonstop9h 35m
Deal found 8/8£703
Wed 9/915:40 -
Nonstop10h 00m
Wed 23/919:30 -
Nonstop9h 30m
Deal found 9/8£705
Mon 8/213:35 -
Nonstop10h 15m
Mon 22/217:45 -
Nonstop9h 35m
Deal found 12/8£715
Wed 7/1015:40 -
Nonstop10h 00m
Wed 14/1019:30 -
Nonstop9h 30m
Deal found 10/8£726
Mon 21/915:40 -
Nonstop10h 00m
Mon 5/1019:30 -
Nonstop9h 30m
Deal found 10/8£734
Fri 4/915:40 -
Nonstop10h 00m
Mon 21/919:30 -
Nonstop9h 30m
Deal found 12/8£737
Thu 8/1015:40 -
Nonstop10h 00m
Wed 14/1019:30 -
Nonstop9h 30m
Deal found 10/8£743
Fri 28/815:40 -
Nonstop10h 00m
Mon 14/919:30 -
Nonstop9h 30m
Deal found 10/8£747
Last-minute flights from Heathrow to Portland
Discover last-minute flight deals from Heathrow to Portland. Data last updated 13 August 2026 and is based on user searches.
Tue 1/921:25 -
1 stop28h 25m
Wed 23/915:30 -
1 stop20h 50m
Deal found 8/8£651
Fri 4/921:25 -
1 stop22h 25m
Fri 11/919:00 -
1 stop17h 20m
Deal found 9/8£644
Sat 5/906:40 -
2 stops21h 04m
Fri 11/912:34 -
3 stops21h 56m
Deal found 12/8£656
Fri 11/906:40 -
2 stops21h 22m
Fri 18/912:34 -
2 stops19h 26m
Deal found 12/8£651
Mon 21/921:25 -
1 stop28h 30m
Mon 5/1015:30 -
1 stop12h 25m
Deal found 8/8£637
Mon 21/906:15 -
3 stops35h 16m
Mon 5/1015:30 -
2 stops19h 00m
Deal found 10/8£646
Wed 23/909:55 -
1 stop18h 41m
Tue 29/917:55 -
1 stop15h 40m
Deal found 10/8£642
Thu 24/913:00 -
1 stop17h 51m
Thu 1/1007:03 -
1 stop20h 07m
Deal found 10/8£654
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 13 August 2026.
Wed 4/1112:15 -
3 stops36h 20m
Deal found 8/8£397
Thu 5/1109:55 -
3 stops36h 57m
Deal found 9/8£401
Sun 8/1107:50 -
2 stops39h 02m
Deal found 8/8£402
Wed 7/1010:20 -
2 stops33h 19m
Deal found 9/8£403
Tue 29/921:05 -
3 stops45h 02m
Deal found 10/8£410
Wed 18/1112:15 -
1 stop12h 45m
Deal found 11/8£414
Wed 23/908:40 -
2 stops33h 27m
Deal found 9/8£418
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 13 August 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 13 August 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
LondonPortland
LHR London Heathrow - PDX Portland
LHRPDX
London Heathrow
Fri 6/11
10:20-22:19
2 stops19h 59m
Portland
Tue 10/11
13:05-17:40
2 stops20h 35m
£661
LondonPortland
LHR London Heathrow - PDX Portland
LHRPDX
London Heathrow
Thu 10/9
11:05-00:37
2 stops21h 32m
Portland
Thu 17/9
08:25-06:55
1 stop14h 30m
£691
LondonPortland
LHR London Heathrow - PDX Portland
LHRPDX
London Heathrow
Thu 10/12
10:20-22:40
2 stops20h 20m
Portland
Mon 14/12
13:05-17:40
2 stops20h 35m
£693
LondonPortland
LHR London Heathrow - PDX Portland
LHRPDX
London Heathrow
Fri 6/11
12:15-17:00
1 stop12h 45m
Portland
Tue 10/11
14:45-19:30
1 stop20h 45m
£694
LondonPortland
LHR London Heathrow - PDX Portland
LHRPDX
London Heathrow
Fri 28/8
10:20-22:44
2 stops20h 24m
Portland
Wed 2/9
07:00-16:00
2 stops25h 00m
£698
LondonPortland
LHR London Heathrow - PDX Portland
LHRPDX
London Heathrow
Fri 9/10
06:40-17:04
2 stops18h 24m
Portland
Wed 14/10
13:05-21:35
3 stops24h 30m
£702
Fastest return journey
LondonPortland
LHR London Heathrow - PDX Portland
LHRPDX
London Heathrow
Wed 7/10
15:40-17:40
Nonstop10h 00m
Portland
Wed 14/10
19:30-13:00
Nonstop9h 30m
£726
LondonPortland
LHR London Heathrow - PDX Portland
LHRPDX
London Heathrow
Thu 8/10
21:05-17:04
3 stops27h 59m
Portland
Wed 14/10
10:56-21:40
2 stops26h 44m
£728
LondonPortland
LHR London Heathrow - PDX Portland
LHRPDX
London Heathrow
Mon 21/9
14:45-23:23
1 stop16h 38m
Portland
Mon 5/10
19:30-13:00
Nonstop9h 30m
£731
Cheapest one-way
LondonPortland
LHR London Heathrow - PDX Portland
LHRPDX
London Heathrow
Wed 11/11
12:15-17:00
1 stop12h 45m
£435
Flights are sorted by cheapest return flights first.
Deals found on 9/8
Showing 1-10 of 19 resultsSorted by cheapest first
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
Airlines
Delays
More
How far ahead should I book a flight from London Heathrow Airport to Portland?
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Portland, you should look to book at least 36 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 £557). Flying from London Heathrow Airport to Portland in July is currently the most expensive (average of £964). 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 13 August 2026.
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 much does it cost for a return flight from London Heathrow Airport to Portland?
Airfare is below average for this route at the moment.
London Heathrow Airport to Portland flights typically cost between £746 and £1,031 in December.The cheapest return price found within the last 5 days was £634 on Icelandair (1 Dec–22 Apr).
Weekly flight availability from London Heathrow Airport to Portland
Explore weekly flight availability from Heathrow to Portland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 August 2026.
The most flights from LHR to PDX 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).
How often are flights from London to Portland delayed?
About 23% of weekly flights between London and Portland have experienced delays in the past year, with the average delay time being 125 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 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 23% 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 35% 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.
Dallas (DFW) is the most affordable one-stop option, with an average return flight price of £515.
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: 13h 08m.
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 Denver (DEN) offer the fastest connection on this route, with an average stopover time of 1h 17m.
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 13 August 2026.
Read reviews from past customers who have flown with Alaska Airlines,Virgin Atlantic, andAmerican Airlines
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.
I love flying with Alaska. I think they sre the best airline.
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. 10 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 6 inbound flights from London Heathrow per day.
How long is the flight from London Heathrow Airport to Portland?
Scandinavian Airlines, United Airlines, and Icelandair can get you from London Heathrow Airport to Portland in just under 12h 45m. Your travel time can differ by up to 8h 47m. 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 £418, 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 Finnair and Air Canada - these airlines can fly you to your destination from £466 and £491, respectively. Users have found that Icelandair is 43% 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 Virgin Atlantic (£424), British Airways (£444), and Finnair (£621).
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 (75%), Alaska Airlines (75%), Aer Lingus( 75%).
What are the cheapest flights from London Heathrow Airport to Portland?
Looking at all options, your cheapest flight can be booked for £687. While the most popular route (London Heathrow - Portland) can be booked for £576 on average, our data indicates £3,069 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 £557). Flying from London Heathrow Airport to Portland in July is currently the most expensive (average of £964). 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.
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 13 August 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 13 August 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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