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Cheap flights from Oregon to London from £175

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LON
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Oregon to London

Keep the following information in mind while searching for Oregon to London flight deals. Data was last updated 11 November 2025.

Round-trip from

£425

One-way from

£175

Popular in

June

Cheapest in

October

Average price

£501

Good round-trip deal

£1,387 or less

Good one-way deal

£3,234 or less
Icelandair
  • Icelandair
  • 9/3-13/3
  • 2 total stops
  • 25h 15m total
  • Oregon to London
Search Deals
5/12
  • 5/12
  • 2 total stops
  • 57h 05m total
  • Oregon to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£136 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Oregon to London (LON).
Search Deals
Price to beat on a one-way flight from Oregon to London (LON).
Search Deals

Find flight deals from Oregon to London

Enter your travel dates to find the best prices.

Cheapest flights from Oregon to London
Explore the most affordable flight options available from Oregon to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 November 2025.

Thu 27/1114:45PDX - LHR
1 stop12h 05mIcelandair
Fri 5/1212:15LHR - PDX
1 stop12h 45mIcelandair
Deal found 10/11£432
Tue 9/1214:45PDX - LGW
2 stops23h 50mMultiple Airlines
Tue 16/1217:20LGW - PDX
3 stops31h 40mMultiple Airlines
Deal found 9/11£437
Mon 8/1214:45PDX - LHR
2 stops21h 05mMultiple Airlines
Mon 15/1207:50LHR - PDX
2 stops17h 10mMultiple Airlines
Deal found 8/11£438
Wed 3/1213:45PDX - LHR
1 stop12h 15mKLM
Wed 10/1206:30LHR - PDX
1 stop12h 55mKLM
Deal found 10/11£441
Sun 16/1111:42BOI - LHR
2 stops16h 58mVirgin Atlantic
Tue 2/1214:45LHR - BOI
1 stop12h 35mVirgin Atlantic
Deal found 10/11£441
Wed 12/1109:59PDX - LHR
2 stops14h 46mVirgin Atlantic
Wed 19/1106:30LHR - PDX
1 stop12h 55mVirgin Atlantic
Deal found 9/11£444
Wed 3/1217:45PDX - LHR
Nonstop9h 35mBritish Airways
Wed 10/1211:55LHR - PDX
1 stop17h 29mBritish Airways
Deal found 10/11£444
Wed 12/1107:05PDX - LHR
1 stop15h 15mMultiple Airlines
Wed 19/1113:45LHR - PDX
Nonstop10h 10mMultiple Airlines
Deal found 9/11£445
Wed 3/1210:05PDX - LHR
1 stop15h 55mDelta
Wed 10/1206:20LHR - PDX
2 stops20h 30mDelta
Deal found 10/11£447
Wed 3/1207:40PDX - LHR
1 stop15h 10mBritish Airways
Tue 9/1215:00LHR - PDX
1 stop16h 23mBritish Airways
Deal found 10/11£448
Wed 12/1109:00BOI - LHR
1 stop18h 30mDelta
Thu 27/1106:30LHR - BOI
2 stops20h 54mDelta
Deal found 9/11£448
Mon 1/1217:45PDX - LHR
Nonstop9h 35mBritish Airways
Fri 12/1210:05LHR - PDX
1 stop17h 05mBritish Airways
Deal found 9/11£449

Cheapflights Fare Finder

 
Customise your flight search to find flights from Oregon to London 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 11 November 2025.
Use the filters below to find and compare flights from Oregon to London that are best for you.

Fly from

Oregon

Fly to

London

Route

Depart

Return

Price

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 3/12

13:45-10:00

1 stop12h 15m

London Heathrow

Wed 10/12

06:30-11:25

1 stop12h 55m

£441

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 3/12

10:05-10:00

1 stop15h 55m

London Heathrow

Wed 10/12

06:20-18:50

2 stops20h 30m

£447

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 3/12

07:40-06:50

1 stop15h 10m

London Heathrow

Tue 9/12

15:00-23:23

1 stop16h 23m

£448

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 8/3

06:04-09:00

1 stop19h 56m

London Heathrow

Thu 19/3

20:25-12:25

1 stop23h 00m

£449

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Wed 10/12

11:10-10:00

1 stop15h 50m

London Heathrow

Thu 18/12

11:05-00:09

1 stop20h 04m

£453

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sun 7/12

17:58-10:00

1 stop33h 02m

London Heathrow

Thu 18/12

10:45-00:42

1 stop20h 57m

£453

MedfordLondon

MFR - LHR

MFRLHR

Medford

Tue 9/12

11:40-10:30

1 stop14h 50m

London Heathrow

Tue 16/12

14:45-23:02

1 stop16h 17m

£453

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 9/12

13:54-10:30

1 stop13h 36m

London Heathrow

Thu 18/12

14:45-20:20

1 stop12h 35m

£453

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 8/12

16:45-12:50

1 stop13h 05m

London Heathrow

Thu 18/12

14:45-20:20

1 stop12h 35m

£453

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Wed 10/12

13:54-10:30

1 stop13h 36m

London Heathrow

Thu 18/12

14:45-20:20

1 stop12h 35m

£453

Flights are sorted by cheapest return flights first.

Deals found on 10/11

Showing 1-10 of 60 results
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Best time to book a flight from Oregon to London

Have a flexible travel schedule? Discover the best time to fly to London from Oregon 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 Oregon to London

What is the cheapest month to book a flight from Oregon to London?

Currently, October is the cheapest month in which you can book a flight from Oregon to London (average of £399). Flying from Oregon to London in June is currently the most expensive (average of £588). 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 OR to LON?

Find hourly flight availability from Oregon to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 November 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 34% on flights from Oregon to London by exploring options for tickets in the evening.

Related info for your journey

Find useful and relevant information for your journey from Oregon to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Oregon to London?

    For as low as £441, KLM can have you in London from Oregon in 12h 15m. Airlines will cover a distance of 4896 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Oregon to London one-way?

    One-way options have recently been found by users for as low as £261 on Scandinavian Airlines. Other airlines that offer cheap prices include Lufthansa from £282 and Air Canada from £299 one-way.

  • What are the most popular routes from Oregon to London?

    The most popular route from Oregon to London is Portland - London Heathrow. You may also consider Portland - London Gatwick or Portland - London City.

  • What are the most reliable airlines from Oregon to London?

    Before booking your flight to London from Oregon, check out the most reliable airlines to get you to your destination on time: American Airlines (76%), Alaska Airlines (76%), Finnair( 76%).

  • What are the cheapest flights from Oregon to London?

    While on average a flight from Oregon to London is generally £2,320, our data shows the cheapest flight currently is £1,387. When looking at the most popular route, (Portland - London Heathrow), you can expect to pay £360 for that flight.

  • Can I find deals for flights from Oregon to London that include hotel bookings?

    Yes. In addition to deals on Oregon to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Oregon to London?

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

  • Can I find deals for business class flights from Oregon to London?

    Yes. Cheapflights offers flight deals from Oregon to London 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 Oregon to London?

    Currently, October is the cheapest month in which you can book a flight from Oregon to London (average of £399). Flying from Oregon to London in June is currently the most expensive (average of £588). 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

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Alternative routes for Oregon to London

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Top 4 airlines flying from Oregon to London

Discover the top 4 airlines that operate flights from Oregon to London. 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 11 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£391Average£549FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£448Average£456FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£463Average£528FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Virgin AtlanticCheapest£501Average£633FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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 Oregon to London?

Cheapflights helps you search for flights from Oregon to London 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 Oregon to London?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Oregon.

Can Cheapflights find flights from Oregon to London with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Oregon to London, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Oregon to London become cheaper?

Not ready to book yet? You can track prices for flights from Oregon to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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