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Cheap flights from the United Kingdom to Portland from £298

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PDX
6 Jul — 13 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Portland

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Portland
Explore the most affordable flight options available from United Kingdom to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 June 2026.

Sun 13/906:25
MAN
-
PDX
2 stops39h 25m
Multiple Airlines
Thu 24/915:30
PDX
-
MAN
1 stop12h 10m
Multiple Airlines
Deal found 2/6£598
Mon 17/822:35
MAN
-
PDX
3 stops47h 15m
Multiple Airlines
Sun 23/819:05
PDX
-
MAN
2 stops16h 40m
Multiple Airlines
Deal found 5/6£610
Thu 27/806:15
MAN
-
PDX
2 stops39h 35m
Multiple Airlines
Fri 4/919:05
PDX
-
MAN
1 stop32h 35m
Multiple Airlines
Deal found 6/6£620
Tue 15/907:30
MAN
-
PDX
2 stops38h 20m
Multiple Airlines
Thu 24/915:30
PDX
-
MAN
1 stop12h 10m
Multiple Airlines
Deal found 2/6£627
Sat 12/923:10
MAN
-
PDX
2 stops46h 40m
Multiple Airlines
Thu 24/915:30
PDX
-
MAN
1 stop12h 10m
Multiple Airlines
Deal found 6/6£647
Wed 16/914:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Wed 30/915:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Deal found 6/6£651
Mon 14/908:35
MAN
-
PDX
2 stops33h 13m
Multiple Airlines
Thu 24/915:30
PDX
-
MAN
1 stop12h 10m
Multiple Airlines
Deal found 2/6£656
Fri 11/909:40
MAN
-
PDX
2 stops32h 08m
Multiple Airlines
Thu 24/915:30
PDX
-
MAN
1 stop12h 10m
Multiple Airlines
Deal found 2/6£657
Fri 4/914:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Wed 7/1015:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Deal found 5/6£676
Thu 10/908:15
MAN
-
PDX
2 stops33h 33m
Multiple Airlines
Thu 24/915:30
PDX
-
MAN
1 stop12h 10m
Multiple Airlines
Deal found 2/6£677
Wed 12/822:25
MAN
-
PDX
3 stops47h 25m
Multiple Airlines
Thu 27/815:30
PDX
-
MAN
2 stops17h 40m
Multiple Airlines
Deal found 3/6£678
Wed 9/914:15
EDI
-
PDX
1 stop11h 40m
Multiple Airlines
Mon 5/1015:30
PDX
-
EDI
2 stops25h 05m
Multiple Airlines
Deal found 5/6£680

Find flight deals from United Kingdom to Portland

Keep the following information in mind while searching for United Kingdom to Portland flight deals. Data was last updated 6 June 2026.

Round-trip from

£598

One-way from

£298

Popular in

July

Cheapest in

September

Average price

£775

Good round-trip deal

£779 or less

Good one-way deal

£724 or less
Icelandair
  • Icelandair
  • 13/9-28/9
  • 3 total stops
  • 51h 35m total
  • United Kingdom to Portland
Search Deals
18/8
  • 18/8
  • 3 total stops
  • 50h 55m total
  • United Kingdom to Portland
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£72 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from United Kingdom to Portland.
Search Deals
Price to beat on a one-way flight from United Kingdom to Portland.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 6 June 2026.
Use the filters below to find and compare flights from the United Kingdom to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 16/9

06:00-11:10

1 stop13h 10m

Portland

Wed 30/9

07:00-12:55

2 stops21h 55m

£710

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 16/9

06:00-11:10

1 stop13h 10m

Portland

Wed 30/9

13:05-16:10

1 stop19h 05m

£710

EdinburghPortland

EDI - PDX

EDIPDX

Edinburgh Turnhouse

Tue 8/9

05:45-15:06

2 stops17h 21m

Portland

Mon 5/10

15:21-16:10

2 stops16h 49m

£720

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Fri 4/9

14:00-22:03

1 stop16h 03m

Portland

Fri 2/10

22:33-10:10

1 stop27h 37m

£728

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Sun 6/9

14:00-22:03

1 stop16h 03m

Portland

Wed 7/10

22:33-10:10

1 stop27h 37m

£728

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Sat 5/9

14:00-15:03

2 stops33h 03m

Portland

Sun 4/10

22:33-10:10

1 stop27h 37m

£728

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Sat 5/9

14:00-22:03

1 stop16h 03m

Portland

Sat 3/10

10:58-10:10

1 stop15h 12m

£728

BirminghamPortland

BHX - PDX

BHXPDX

Birmingham

Wed 9/9

06:05-19:06

2 stops21h 01m

Portland

Sun 13/9

19:45-17:25

2 stops37h 40m

£736

LondonPortland

LTN - PDX

LTNPDX

London Luton

Tue 18/8

09:40-09:31

3 stops31h 51m

Portland

Wed 26/8

19:05-21:50

3 stops18h 45m

£737

EdinburghPortland

EDI - PDX

EDIPDX

Edinburgh Turnhouse

Sat 4/7

11:30-22:34

1 stop19h 04m

Portland

Fri 10/7

23:27-10:00

1 stop26h 33m

£739

Flights are sorted by cheapest return flights first.

Deals found on 3/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from United Kingdom to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from United Kingdom 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 the United Kingdom to Portland

What is the cheapest month to book a flight from United Kingdom to Portland?

Currently, April is the cheapest month in which you can book a flight from United Kingdom to Portland (average of £275). Flying from United Kingdom to Portland in August is currently the most expensive (average of £511). 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 GB to PDX?

Find hourly flight availability from United Kingdom 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 6 June 2026.

When flying from United Kingdom to Portland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from United Kingdom to Portland

Explore weekly flight availability from United Kingdom 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 6 June 2026.

The most flights from GB0 to PDX are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

How often are flights from the United Kingdom to Portland delayed?

About 21% of weekly flights between United Kingdom and Portland have experienced delays in the past year, with the average delay time being 120 minutes.

What is the most punctual flight time for the United Kingdom 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 the United Kingdom 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.

How far ahead should I book a flight from United Kingdom to Portland?

To ensure you get the cheapest price possible for a flight from United Kingdom to Portland, you should look to book at least 60 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.

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 6 June 2026.
Read through reviews of airlines operating flights from the United Kingdom to Portland, such as KLM,Virgin Atlantic, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,526 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,526 reviews
KLM
7.8
Good
1,526 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Virgin Atlantic
7.5
Good
689 reviews
KLM
7.8
Good
1,526 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
American Airlines
7.1
Good
11,651 reviews
KLM
7.8
Good
1,526 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Icelandair
7.0
Good
665 reviews
KLM
7.8
Good
1,526 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
8,028 reviews
KLM
7.8
Good
1,526 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom?

    For a flight from United Kingdom to Portland, you will be flying into Portland. Portland (PDX) is just 6.0 mi from the center of the city.

  • How long is the flight from United Kingdom to Portland?

    Airlines like Icelandair, Delta, and KLM fly from United Kingdom to Portland in about 13h 10m. The time it takes to get you to your destination can typically vary by up to 16h 20m. Airlines will cover a distance of 4560 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from United Kingdom to Portland one-way?

    The cheapet airlines for a one-way flight from United Kingdom to Portland are Lufthansa (£451), British Airways (£453), and Icelandair (£458).

  • What are the most popular routes from United Kingdom to Portland?

    Most travelers choose London Heathrow - Portland, London Gatwick - Portland or London Stansted - Portland when deciding on the best route from United Kingdom to Portland.

  • What are the most reliable airlines from United Kingdom 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 United Kingdom to Portland on time: American Airlines (77%), Alaska Airlines (77%), Aer Lingus (77%).

  • What are the cheapest flights from United Kingdom to Portland?

    Looking at all options, your cheapest flight can be booked for £539. While the most popular route (London Heathrow - Portland) can be booked for £574 on average, our data indicates £830 when flying from United Kingdom to Portland.

  • Can I find deals for flights from United Kingdom to Portland that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Portland.

  • Can I find deals for business class flights from United Kingdom to Portland?

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to Portland?

    Currently, April is the cheapest month in which you can book a flight from United Kingdom to Portland (average of £275). Flying from United Kingdom to Portland in August is currently the most expensive (average of £511). 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.

See more FAQs

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.

Top 10 airlines flying from United Kingdom to Portland

Discover the top 10 airlines that operate flights from United Kingdom 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 6 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£332Average£653FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IcelandairCheapest£452Average£679FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapest£490Average£663FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£495Average£735FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapest£499Average£838FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£512Average£767FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£535Average£748FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£541Average£802FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£559Average£841FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Scandinavian AirlinesCheapest£575Average£602FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights

Fly with Cheapflights

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 United Kingdom to Portland?

Deals for United Kingdom to Portland flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Portland?

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to Portland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from United Kingdom to Portland with no change fees?

Certainly. Search results for flights to Portland from United Kingdom shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from United Kingdom to Portland become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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