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Cheap flights from Oregon to London from £170

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LON
18 Aug — 25 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap 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 19 July 2026.

Mon 2/1106:15
BOI
-
LHR
1 stop22h 00m
United Airlines
Wed 4/1106:50
LHR
-
BOI
2 stops23h 16m
United Airlines
Deal found 14/7£554
Mon 19/1015:59
EUG
-
LHR
1 stop35h 11m
Multiple Airlines
Thu 22/1008:45
LHR
-
EUG
2 stops19h 59m
Multiple Airlines
Deal found 17/7£600
Wed 2/1214:43
BOI
-
LHR
1 stop11h 57m
United Airlines
Fri 4/1206:35
LHR
-
BOI
2 stops21h 41m
United Airlines
Deal found 19/7£607
Tue 1/1217:22
BOI
-
LHR
1 stop33h 18m
United Airlines
Fri 4/1206:35
LHR
-
BOI
2 stops21h 41m
United Airlines
Deal found 19/7£612
Tue 1/1210:39
BOI
-
LHR
1 stop16h 01m
United Airlines
Thu 3/1207:30
LHR
-
BOI
2 stops20h 46m
United Airlines
Deal found 19/7£615
Mon 30/1117:44
BOI
-
LHR
1 stop32h 56m
United Airlines
Thu 3/1207:30
LHR
-
BOI
2 stops19h 05m
United Airlines
Deal found 19/7£618
Sun 29/1106:15
BOI
-
LHR
1 stop22h 00m
Multiple Airlines
Tue 1/1211:05
LHR
-
BOI
2 stops43h 01m
Multiple Airlines
Deal found 19/7£624
Tue 20/1006:20
RDM
-
LHR
2 stops20h 25m
Virgin Atlantic
Thu 22/1010:45
LHR
-
RDM
2 stops20h 21m
Virgin Atlantic
Deal found 18/7£630
Sat 26/915:30
PDX
-
LGW
1 stop15h 05m
Icelandair
Tue 6/1015:40
LGW
-
PDX
1 stop34h 15m
Icelandair
Deal found 17/7£631
Sat 26/915:30
PDX
-
LHR
1 stop20h 50m
Icelandair
Thu 8/1021:25
LHR
-
PDX
1 stop28h 30m
Icelandair
Deal found 17/7£632
Wed 30/915:30
PDX
-
LHR
1 stop12h 25m
Icelandair
Tue 6/1013:05
LHR
-
PDX
1 stop12h 50m
Icelandair
Deal found 17/7£632
Thu 20/815:30
PDX
-
LGW
1 stop15h 10m
Icelandair
Mon 24/815:40
LGW
-
PDX
1 stop28h 10m
Icelandair
Deal found 17/7£632

Find flight deals from Oregon to London

Keep the following information in mind while searching for Oregon to London flight deals. Data was last updated 19 July 2026.

Round-trip from

£554

One-way from

£170

Popular in

July

Cheapest in

November

Average price

£912

Good round-trip deal

£780 or less
United Airlines
  • United Airlines
  • 2/11-4/11
  • 3 total stops
  • 45h 16m total
  • Oregon to London
Search Deals
14/10
  • 14/10
  • 2 total stops
  • 35h 15m total
  • Oregon to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£116 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Oregon to London (LON).
Search Deals

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 19 July 2026.
Use the filters below to find and compare flights from Oregon to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Wed 2/12

14:43-09:40

1 stop11h 57m

London Heathrow

Fri 4/12

06:35-21:16

2 stops21h 41m

£607

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 2/11

13:51-12:20

1 stop15h 29m

London Heathrow

Wed 4/11

14:45-23:51

1 stop16h 06m

£659

PortlandLondon

PDX - LTN

PDXLTN

Portland

Wed 30/9

15:30-21:15

2 stops21h 45m

London Luton

Wed 14/10

06:15-17:55

1 stop19h 40m

£661

EugeneLondon

EUG - LHR

EUGLHR

Eugene

Wed 9/12

05:50-11:15

1 stop21h 25m

London Heathrow

Thu 17/12

18:00-23:14

2 stops37h 14m

£662

PortlandLondon

PDX - LTN

PDXLTN

Portland

Thu 15/10

15:30-20:30

3 stops21h 00m

London Luton

Mon 2/11

06:10-17:00

2 stops18h 50m

£667

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 29/9

17:30-12:25

1 stop11h 55m

London Heathrow

Wed 7/10

10:50-22:33

2 stops18h 43m

£674

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 5/10

06:25-07:15

2 stops17h 50m

London Heathrow

Thu 5/11

11:10-22:42

2 stops18h 32m

£676

PortlandLondon

PDX - LTN

PDXLTN

Portland

Thu 5/11

14:45-23:05

2 stops24h 20m

London Luton

Sun 8/11

06:00-17:00

1 stop19h 00m

£690

EugeneLondon

EUG - LHR

EUGLHR

Eugene

Tue 22/9

06:05-06:45

1 stop16h 40m

London Heathrow

Wed 30/9

09:50-18:58

1 stop17h 08m

£694

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 8/11

11:25-13:45

2 stops18h 20m

London Heathrow

Sat 14/11

11:15-21:53

2 stops18h 38m

£699

Flights are sorted by cheapest return flights first.

Deals found on 18/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from Oregon to London (average of £514). Flying from Oregon to London in July is currently the most expensive (average of £924). 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 19 July 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oregon to London as you normally would.

Weekly flight availability from Oregon to London

Explore weekly flight availability from Oregon to London. 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 July 2026.

The most flights from USOR to LON 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 much does it cost for a return flight from Oregon to London?

How far ahead should I book a flight from Oregon to London?

Booking 15 days in advance of your planned departure date is, on average, the best time to get cheap flights from Oregon to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 £659, United Airlines can have you in London from Oregon in 15h 29m. Airlines will cover a distance of 4829 mi. This flight may include one or multiple stops.

  • 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 (73%), Alaska Airlines (73%), Aer Lingus( 73%).

  • What are the cheapest flights from Oregon to London?

    While on average a flight from Oregon to London is generally £803, our data shows the cheapest flight currently is £777. When looking at the most popular route, (Portland - London Heathrow), you can expect to pay £531 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, February is the cheapest month in which you can book a flight from Oregon to London (average of £514). Flying from Oregon to London in July is currently the most expensive (average of £924). 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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Borehamwood

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Alternative routes for Oregon to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Oregon to London

Discover the top airline 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 19 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£440Average£804FlexibilityNo cancel feeOn-time70%
Search British Airways 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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