This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — PDX
18 Nov — 25 Nov1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Portland are usually found in February or January, booked 2 days in advance, depart on a Tuesday or Friday and return on a Tuesday
Cheap flight deals from London to Portland
Enter your travel dates to find the best prices.
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Cheapest flights from London to Portland
Explore the most affordable flight options available from London to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 October 2026.
Mon 16/1110:20 -
2 stops20h 20m
Mon 30/1113:05 -
2 stops20h 35m
Deal found 16/10£606
Sat 12/1206:40 -
2 stops22h 15m
Fri 29/110:00 -
2 stops24h 30m
Deal found 18/10£607
Mon 16/1108:10 -
2 stops16h 50m
Mon 30/1114:45 -
2 stops16h 20m
Deal found 17/10£607
Wed 2/1210:20 -
2 stops18h 35m
Wed 9/1213:00 -
2 stops20h 40m
Deal found 18/10£610
Mon 7/1208:10 -
2 stops16h 50m
Mon 1/214:45 -
2 stops19h 15m
Deal found 18/10£613
Wed 18/1106:40 -
2 stops22h 16m
Wed 9/1211:01 -
3 stops20h 59m
Deal found 15/10£613
Wed 18/1110:20 -
2 stops18h 36m
Sun 13/1211:01 -
2 stops26h 39m
Deal found 16/10£615
Tue 1/1219:30 -
3 stops29h 30m
Tue 8/1214:45 -
2 stops23h 00m
Deal found 18/10£631
Mon 14/1208:10 -
2 stops16h 50m
Fri 15/114:45 -
2 stops19h 55m
Deal found 17/10£655
Tue 17/1117:40 -
3 stops31h 20m
Tue 24/1114:45 -
1 stop12h 10m
Deal found 18/10£657
Mon 7/1210:25 -
2 stops17h 28m
Mon 1/210:31 -
2 stops24h 54m
Deal found 18/10£669
Mon 16/1108:05 -
1 stop16h 55m
Mon 30/1114:45 -
1 stop15h 20m
Deal found 15/10£689
Best flights from London to Portland
Discover carefully curated flight deals from London to Portland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 October 2026.
Wed 18/1106:40 -
2 stops22h 16m
Wed 9/1211:01 -
3 stops20h 59m
Deal found 16/10£615
Mon 30/1114:30 -
1 stop26h 56m
Mon 7/1219:25 -
2 stops27h 45m
Deal found 15/10£658
Mon 16/1108:05 -
1 stop16h 55m
Mon 30/1114:45 -
2 stops16h 20m
Deal found 15/10£671
Wed 25/1114:30 -
1 stop14h 16m
Wed 2/1210:00 -
2 stops39h 20m
Deal found 14/10£744
Mon 11/110:00 -
2 stops19h 27m
Wed 20/106:15 -
2 stops18h 45m
Deal found 19/10£800
Sun 31/117:20 -
2 stops35h 25m
Thu 4/213:18 -
2 stops43h 02m
Deal found 15/10£1,166
Wed 18/1107:05 -
3 stops21h 51m
Sun 13/1211:01 -
2 stops26h 39m
Deal found 15/10£616
Mon 9/1106:40 -
2 stops23h 20m
Mon 16/1113:05 -
3 stops24h 30m
Deal found 16/10£618
Mon 16/1108:05 -
1 stop16h 55m
Mon 30/1114:45 -
1 stop15h 20m
Deal found 15/10£689
Wed 11/1109:00 -
2 stops20h 02m
Wed 18/1107:00 -
2 stops17h 25m
Deal found 14/10£719
Wed 2/1210:20 -
2 stops18h 35m
Wed 9/1211:01 -
3 stops26h 39m
Deal found 18/10£619
Mon 14/1206:10 -
2 stops18h 50m
Fri 15/114:45 -
2 stops19h 35m
Deal found 17/10£728
Fri 30/1010:00 -
2 stops19h 19m
Fri 6/1106:00 -
2 stops19h 00m
Deal found 15/10£885
Wed 25/1108:00 -
1 stop17h 00m
Thu 3/1214:45 -
2 stops24h 20m
Deal found 18/10£764
Thu 10/1210:20 -
2 stops20h 12m
Mon 14/1211:01 -
3 stops26h 39m
Deal found 15/10£730
Mon 16/1110:25 -
2 stops17h 21m
Mon 30/1113:49 -
2 stops21h 36m
Deal found 17/10£794
Mon 29/310:30 -
2 stops16h 03m
Mon 5/411:40 -
2 stops19h 00m
Deal found 19/10£802
Tue 17/1117:20 -
2 stops35h 42m
Tue 24/1113:25 -
2 stops36h 30m
Deal found 18/10£1,176
Thu 25/210:55 -
2 stops41h 38m
Sat 6/307:10 -
2 stops42h 45m
Deal found 18/10£1,195
Thu 3/1210:25 -
2 stops17h 28m
Thu 10/1212:06 -
2 stops18h 54m
Deal found 19/10£844
Wed 3/317:25 -
2 stops35h 08m
Wed 10/313:35 -
2 stops25h 00m
Deal found 16/10£1,203
Mon 30/1110:25 -
2 stops16h 20m
Mon 7/1212:06 -
2 stops23h 19m
Deal found 15/10£923
Wed 3/310:05 -
2 stops42h 28m
Tue 9/307:10 -
2 stops25h 20m
Deal found 16/10£1,262
Fri 26/206:30 -
2 stops25h 40m
Sun 7/315:40 -
2 stops22h 55m
Deal found 17/10£1,023
Fri 13/1111:55 -
1 stop13h 05m
Fri 27/1110:00 -
2 stops15h 45m
Deal found 16/10£1,047
Sat 19/1219:30 -
3 stops29h 30m
Sat 2/114:45 -
2 stops23h 45m
Deal found 16/10£1,108
Thu 5/1117:20 -
2 stops31h 14m
Thu 12/1113:25 -
2 stops42h 55m
Deal found 16/10£1,133
Wed 11/1106:30 -
2 stops23h 50m
Wed 18/1112:57 -
2 stops36h 13m
Deal found 18/10£1,150
Fri 30/1010:55 -
2 stops43h 22m
Fri 6/1110:50 -
2 stops21h 30m
Deal found 15/10£1,313
Direct flights from London to Portland
Explore direct flight options from London to Portland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 October 2026.
Mon 14/1213:35 -
Nonstop10h 15m
Fri 15/117:45 -
Nonstop9h 35m
Deal found 16/10£625
Sun 13/1213:35 -
Nonstop10h 15m
Fri 15/117:45 -
Nonstop9h 35m
Deal found 16/10£646
Wed 16/1213:35 -
Nonstop10h 15m
Fri 15/117:45 -
Nonstop9h 35m
Deal found 16/10£664
Mon 16/1113:35 -
Nonstop10h 15m
Mon 30/1117:45 -
Nonstop9h 35m
Deal found 16/10£697
Mon 11/113:35 -
Nonstop10h 15m
Mon 25/117:45 -
Nonstop9h 35m
Deal found 19/10£708
Tue 13/416:30 -
Nonstop10h 05m
Thu 6/519:30 -
Nonstop9h 30m
Deal found 16/10£718
Mon 16/1113:35 -
Nonstop10h 15m
Mon 30/1117:45 -
Nonstop9h 35m
Deal found 15/10£723
Wed 13/113:35 -
Nonstop10h 15m
Wed 27/117:45 -
Nonstop9h 35m
Deal found 15/10£727
Wed 25/1113:35 -
Nonstop10h 15m
Wed 2/1217:45 -
Nonstop9h 35m
Deal found 17/10£729
Last-minute flights from London to Portland
Discover last-minute flight deals from London to Portland. Data last updated 19 October 2026 and is based on user searches.
Wed 11/1111:55 -
1 stop13h 05m
Thu 18/315:45 -
1 stop14h 55m
Deal found 17/10£697
Mon 16/1110:20 -
2 stops20h 20m
Mon 30/1113:05 -
2 stops20h 35m
Deal found 16/10£606
Mon 16/1108:10 -
2 stops16h 50m
Mon 30/1114:45 -
2 stops16h 20m
Deal found 17/10£607
Mon 16/1108:05 -
1 stop16h 55m
Mon 30/1114:45 -
1 stop15h 20m
Deal found 15/10£689
Mon 16/1107:40 -
1 stop17h 20m
Mon 30/1114:45 -
2 stops18h 10m
Deal found 16/10£689
Tue 17/1117:40 -
3 stops31h 20m
Tue 24/1114:45 -
1 stop12h 10m
Deal found 18/10£657
Wed 18/1106:40 -
2 stops22h 16m
Wed 9/1211:01 -
3 stops20h 59m
Deal found 15/10£613
Wed 18/1110:20 -
2 stops18h 36m
Sun 13/1211:01 -
2 stops26h 39m
Deal found 16/10£615
Wed 18/1111:55 -
1 stop13h 05m
Tue 24/1114:45 -
1 stop12h 10m
Deal found 17/10£706
Sun 22/1106:40 -
2 stops22h 16m
Mon 30/1113:05 -
2 stops21h 25m
Deal found 17/10£607
One-way flights from London to Portland
Search for one-way flight options from London to Portland. Find affordable one-way fares based on user searches. Data last updated 19 October 2026.
Thu 19/1119:00 -
2 stops30h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£336
Thu 12/1119:00 -
2 stops30h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£336
Sat 14/1115:40 -
2 stops33h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£342
Sat 7/1115:40 -
2 stops33h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£345
Mon 7/1217:55 -
3 stops37h 33m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£348
Tue 17/1118:25 -
2 stops30h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£349
Thu 5/1106:15 -
3 stops42h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£349
Thu 5/1119:00 -
2 stops30h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£351
Thu 19/1118:00 -
3 stops31h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£351
Thu 5/1108:50 -
3 stops40h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£351
Wed 18/1118:45 -
3 stops54h 15m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 17/10£352
Wed 4/1121:05 -
3 stops51h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 19/10£353
Find flight deals from London to Portland
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 19 October 2026.
Customise your flight search to find flights from London 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 7,457,451 searches. Data last updated 19 October 2026.
Use the filters below to find and compare flights from London to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
LondonPortland
STN London Stansted - PDX Portland
STNPDX
London Stansted
Tue 17/11
18:25-17:00
2 stops30h 35m
Portland
Wed 31/12
00:00-09:00
Nonstop0h 00m
£349
LondonPortland
LTN London Luton - PDX Portland
LTNPDX
London Luton
Thu 19/11
18:00-17:00
3 stops31h 00m
Portland
Wed 31/12
00:00-09:00
Nonstop0h 00m
£351
LondonPortland
LGW London Gatwick - PDX Portland
LGWPDX
London Gatwick
Wed 4/11
21:05-17:00
3 stops51h 55m
Portland
Wed 31/12
00:00-09:00
Nonstop0h 00m
£353
LondonPortland
LTN London Luton - PDX Portland
LTNPDX
London Luton
Tue 24/11
08:20-17:00
3 stops40h 40m
Portland
Wed 31/12
00:00-09:00
Nonstop0h 00m
£364
LondonPortland
LTN London Luton - PDX Portland
LTNPDX
London Luton
Tue 17/11
05:00-17:00
3 stops44h 00m
Portland
Wed 31/12
00:00-09:00
Nonstop0h 00m
£366
LondonPortland
LTN London Luton - PDX Portland
LTNPDX
London Luton
Fri 13/11
20:25-17:00
3 stops52h 35m
Portland
Wed 31/12
00:00-09:00
Nonstop0h 00m
£371
LondonPortland
LGW London Gatwick - PDX Portland
LGWPDX
London Gatwick
Tue 17/11
05:00-17:00
3 stops44h 00m
Portland
Wed 31/12
00:00-09:00
Nonstop0h 00m
£378
LondonPortland
LTN London Luton - PDX Portland
LTNPDX
London Luton
Wed 4/11
21:45-17:00
3 stops51h 15m
Portland
Wed 31/12
00:00-09:00
Nonstop0h 00m
£378
LondonPortland
STN London Stansted - PDX Portland
STNPDX
London Stansted
Mon 2/11
19:10-17:00
3 stops53h 50m
Portland
Wed 31/12
00:00-09:00
Nonstop0h 00m
£384
LondonPortland
LGW London Gatwick - PDX Portland
LGWPDX
London Gatwick
Wed 10/3
09:45-20:49
1 stop19h 04m
Portland
Wed 31/12
00:00-09:00
Nonstop0h 00m
£408
Flights are sorted by cheapest return flights first.
Deals found on 15/10
Showing 1-10 of 59 resultsSorted by cheapest first
1
2
3
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6
Best time to book a flight from London to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from London with our price prediction graph.
LON-PDX
LHR-PDX
STN-PDX
LGW-PDX
LTN-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 to Portland
LON-PDX
LHR-PDX
STN-PDX
LGW-PDX
LTN-PDX
What is the cheapest month to book a flight from London to Portland?
Currently, February is the cheapest month in which you can book a flight from London to Portland (average of £614). Flying from London to Portland in August is currently the most expensive (average of £990). 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 LON to PDX?
Find hourly flight availability from London 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 19 October 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Portland as you normally would.
Weekly flight availability from London to Portland
Explore weekly flight availability from London 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 19 October 2026.
The most flights from LON to PDX are scheduled on a Friday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost for a return flight from London to Portland?
Airfare is below average for this route at the moment.
London to Portland flights typically cost between £687 and £839 in November.The cheapest return price found within the last 5 days was £606 on Scandinavian Airlines (16 Nov–30 Nov).
What’s the top stopover airport for flights from London to Portland?
Share of one-stop return flights from London to Portland chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 81% of one-stop itineraries from London to Portland on Cheapflights.
What’s the cheapest stopover airport for flights from London to Portland?
Average return fare for one-stop flights from London to Portland, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Boston (BOS) is the most affordable one-stop option, with an average return flight price of £597.
What’s the fastest stopover option from London to Portland?
Shortest average travel time for one-stop one-way flights from London to Portland, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 12h 40m.
Which airport typically offers the quickest stopover for flights from London to Portland?
Average stopover duration for one-stop one-way flights from London 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 12m.
How often are flights from London to Portland delayed?
About 19% of weekly flights between London and Portland have experienced delays in the past year, with the average delay time being 129 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?
Sunday 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 19% of flights being delayed.
How far ahead should I book a flight from London to Portland?
The best time to book flights from London to Portland is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 19 October 2026.
Read through reviews of airlines operating flights from London to Portland, such as Finnair,Virgin Atlantic, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Related info for your journey
Find useful and relevant information for your journey from London 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?
Most people fly into Portland (PDX) if they book a flight to Portland from London. On average, Portland has 5 inbound flights from London per day from 9 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.
How long is the flight from London to Portland?
There are many flights that can get you from London to Portland in 19h 27m. Fly via Scandinavian Airlines, Delta, or Turkish Airlines to get the fastest option. There are 4921 mi between London and Portland. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from London to Portland round-trip?
Currently priced at £500, Lufthansa will fly you from London to Portland and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Icelandair and United Airlines - these airlines can fly you to your destination from £524 and £549, respectively. Lufthansa is 36% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most popular routes from London to Portland?
The most popular route from London to Portland is London Heathrow - Portland. You may also consider London Gatwick - Portland or London Stansted - Portland.
What are the most reliable airlines from London to Portland?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Portland on time: American Airlines (70%), Alaska Airlines (70%), Aer Lingus (70%).
What are the cheapest flights from London to Portland?
While on average a flight from London to Portland is generally £1,046, our data shows the cheapest flight currently is £503. When looking at the most popular route, (London Heathrow - Portland), you can expect to pay £565 for that flight.
Can I find deals for business class flights from London to Portland?
Yes. Cheapflights offers flight deals from London 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 to Portland?
Currently, February is the cheapest month in which you can book a flight from London to Portland (average of £614). Flying from London to Portland in August is currently the most expensive (average of £990). 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 thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes
Complete your trip
Direct flights to Oregon
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Fly from London to Portland on these airlines
Choose from the following airlines for your flight from London to Portland. Flights are based on user searches made on Cheapflights and were last updated on 19 October 2026.
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 19 October 2026.
Discover the top 9 airlines that operate flights from London 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 7,457,451 searches. Data last updated 19 October 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 London to Portland?
Cheapflights helps you search for flights from London 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 London to Portland?
Cheapflights helps you find that perfect flight to Portland from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from London to Portland with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Portland, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from London to Portland become cheaper?
Yes, Cheapflights offers price alerts on London to Portland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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