Cheap flights from Portland (PDX) to London (LON) from $251

This is the cheapest one-way flight price, found on 12/6. Prices may vary by date and flight preferences.
PDX — LON
Dec 11 — Dec 181

The best prices from Portland to London are usually found in February or October, booked 21 days in advance, depart on a Tuesday or Monday and return on a Wednesday

How to find the cheapest flight from Portland (PDX) to London (LON)

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to London (LON). 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 December 6, 2023.

Popular in

July

Cheapest in

February

Round-trip from

$630

One-way from

$453
High demand for flights, 29% potential price rise
Best time to find cheap flights, 20% potential price drop
From Portland to London (LON)
One-way flight from Portland to London (LON)

What is the cheapest day to fly round-trip from Portland to London?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Portland to London?

To save on the cost of your flight from Portland to London, book at least 22 days before your planned departure. Booking around this time can save you about 54% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,101 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,168.

What is the cheapest month to fly from Portland to London?

February can be a great time to fly to London from Portland with a flight ticket averaging about $985. Cheapflights users have found deals in the month of February for as cheap as $621. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from Portland to London (PDX - LON)?

Unlike at noon, when flights are generally more expensive, you can save up to 16% on flights from Portland to London by exploring options for tickets in the morning.

Cheap United Airlines flights from Portland to London

Explore cheap flight options specifically provided by United Airlines for the route between Portland and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,836,739 searches. Data last updated December 6, 2023.
Take a look at some of the lowest-priced United Airlines flights heading from Portland to London. Come back soon if you're not finding the exact deal you're looking for.
  • If you’re traveling from Portland to London, one of the more common airlines traveling that route is United Airlines. Flights from United Airlines traveling this route typically cost $869.85 RT. This price is typically 78% more expensive than other airlines that offer Portland to London flights. When booking this route, the cheapest RT price found was $620. The most popular departure airport in Portland when flying to London is Portland Airport. The most popular airport to fly into when visiting London is London Heathrow Airport. When flying from Portland to London, United Airlines flights are 4% more popular than any other airline flying that same route.

Cheap Air Canada flights from Portland to London

Explore cheap flight options specifically provided by Air Canada for the route between Portland and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,836,739 searches. Data last updated December 6, 2023.
Have a look at some of the cheapest available Air Canada flights departing from Portland and landing in London. Check back soon if you're not seeing flights that suit your needs.
  • Air Canada is one of the most popular airlines used for those traveling from Portland to London. Flights on this route from Air Canada typically cost $1,019.64 RT, a price that is 71% cheaper than the average Portland to London flight. The cheapest flight found was $697 RT. The most popular departure airport in Portland when flying to London is Portland Airport. The most popular airport to fly into when visiting London is London Heathrow Airport. When flying from Portland to London, Air Canada flights are 0% more popular than any other airline flying that same route.

Cheap Portland to London flights in December & January 2023

Find cheap flight options from Portland to London specifically for the months of December and January 2023. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,836,739 searches. Prices were last updated on December 6, 2023.
Check out some of the best flight deals from Portland to London in 2023. Check back in a little while for more flight options.

Portland to London 2023 flight deals

Discover exclusive flight deals for travel between Portland and London in 2023. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,836,739 searches. Data last updated December 6, 2023.
Check out some of the best flight deals from Portland to London in 2023. Check back in a little while for more flight options.

Non-stop flights to London from Portland

Discover non-stop flight options from Portland to London. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,836,739 searches. Data last updated December 6, 2023.
To help reduce your travel time, choose from one of these non-stop flights from Portland to London. Search for alternative flights from Portland to London by utilizing the search form above.

Portland to London flights leaving soon

Find last-minute flight options from Portland to London for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,836,739 searches. Data last updated December 6, 2023.
Have a look at some of the last-minute flights available departing from Portland to London. Users should examine the flight details to ensure there are no surprises.

One-way flights to London from Portland

Search for one-way flight options from Portland to London. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,836,739 searches. Data last updated December 6, 2023.
Take a look at some of the best available options we've come across on one-way flights from Portland to London. For those needing a return trip from Portland, there is a search form available above.

Find flights from Portland to London within your budget

Customize your flight search to find flights from Portland 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 2,836,739 searches. Data last updated December 6, 2023.

Fly from

Any airport

Fly to

Any airport

Budget

$586 - $762

Route

Depart

Return

Price

PortlandLondon Heathrow

PDX - LHR

PDXLHR

Portland

Fri 5/3

1 stop12h 30m

London Heathrow

Tue 5/7

1 stop12h 50m

$586

PortlandLondon Heathrow

PDX - LHR

PDXLHR

Portland

Sun 12/24

1 stop18h 29m

London Heathrow

Wed 1/10

1 stop17h 56m

$708

PortlandLondon Heathrow

PDX - LHR

PDXLHR

Portland

Tue 4/23

2 stops16h 50m

London Heathrow

Thu 5/9

2 stops18h 55m

$723

PortlandLondon Heathrow

PDX - LHR

PDXLHR

Portland

Mon 1/22

1 stop17h 10m

London Heathrow

Fri 2/2

1 stop16h 16m

$726

PortlandLondon Heathrow

PDX - LHR

PDXLHR

Portland

Tue 3/5

1 stop17h 10m

London Heathrow

Thu 3/14

1 stop33h 51m

$727

PortlandLondon Gatwick

PDX - LGW

PDXLGW

Portland

Wed 2/14

2 stops17h 45m

London Gatwick

Wed 2/21

2 stops31h 54m

$742

PortlandLondon Heathrow

PDX - LHR

PDXLHR

Portland

Wed 4/17

Nonstop9h 25m

London Heathrow

Tue 4/30

Nonstop9h 50m

$744

PortlandLondon Heathrow

PDX - LHR

PDXLHR

Portland

Wed 4/17

1 stop17h 15m

London Heathrow

Thu 5/2

1 stop12h 50m

$747

PortlandLondon Heathrow

PDX - LHR

PDXLHR

Portland

Tue 4/16

1 stop13h 45m

London Heathrow

Tue 4/30

2 stops22h 14m

$762

Flights are sorted by cheapest first

Deals found on 12/6

Average price of flights to London by month

Plan your trip from Portland to London by taking into account the cheapest months to travel. The average price of a one-way flight from Portland to London is currently 290.33 USD while a round-trip flight costs 718.33 USD. Price data was last updated on December 3, 2023.

Currently, November is the cheapest month in which you can book a flight from Portland to London (average of $652). Flying from Portland to London in June is currently the most expensive (average of $1,184). 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.

January

$680

February

$671

March

$699

April

$742

May

$764

June

$1,184

July

$1,037

August

$815

September

$748

October

$712

November

$652

December

$680

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated December 6, 2023.
Read through reviews of airlines operating flights from Portland to London, such as United Airlines, Air Canada and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
7.9
Good
3,035 reviews

Comfort

7.9

Boarding

8.0

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Four hour delay (missing two screws). Seats in need of repair.

7.9
Good
3,035 reviews
7.9
Good
3,035 reviews

Comfort

7.9

Boarding

8.0

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Four hour delay (missing two screws). Seats in need of repair.

7.6
Good
276 reviews
7.9
Good
3,035 reviews

Comfort

7.9

Boarding

8.0

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Four hour delay (missing two screws). Seats in need of repair.

7.5
Good
342 reviews
7.9
Good
3,035 reviews

Comfort

7.9

Boarding

8.0

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Four hour delay (missing two screws). Seats in need of repair.

7.4
Good
198 reviews
7.9
Good
3,035 reviews

Comfort

7.9

Boarding

8.0

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Four hour delay (missing two screws). Seats in need of repair.

7.4
Good
1,901 reviews
7.9
Good
3,035 reviews

Comfort

7.9

Boarding

8.0

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Four hour delay (missing two screws). Seats in need of repair.

Average temperature in London by month

Plan your trip to London by selecting the month that matches your preferred temperature. January sees the highest average temperature while July sees the lowest average temperature. Temperature data was last updated on December 3, 2023.

LON

Temperature

39.2 - 62.6 °F

Average rainfall in London by month

Keep in mind the precipitation totals in London when planning your trip. London sees an average of 2.30 precipitation per year with the most occurring in January. Precipitation data was last updated on December 3, 2023.

LON

Rainfall

1.6 - 2.8 inches

Related info for your journey

Find useful and relevant information for your journey from Portland to London. 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 from for flights from Portland to London?

For a flight from Portland to London, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 2 outbound flights to London per day. 14 airlines have flights to London from Portland on a regular basis.

Can I find flights from Portland to London for under $600 on Cheapflights?

Yes, there are multiple flights from Portland to London for under $600. The cheapest flight booked recently is on Icelandair for just $586, but on average you can expect to pay $689.

Are there nonstop flights from Portland to London for under $800 on Cheapflights?

Cheapflights has at least 20 direct flights from Portland to London under $800. A good price for a nonstop flight from Portland to London is less than $790.

Are there last-minute flights available from Portland to London for under $700?

There are currently 20+ open flights from Portland to London within the next 7 days for less than $700.

What are the cheapest airlines flying from Portland to London round-trip?

Cheapflights users have booked flights from Portland to London round-trip from $586. Other airlines that can offer you cheap pricing are Air France, from $708, and Air Canada, from $726. You may be able to fly from Portland to London for 40% less than the average price by searching for these airlines.

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

The cheapest airlines for a one-way flight from Portland to London are WestJet ($414), Air Canada ($453), and Icelandair ($491).

What are the most popular routes from Portland to London?

What are the most popular airlines that fly from Portland to London?

What are the most reliable airlines from Portland to London?

The top 3 most reliable airlines when flying from Portland to London are American Airlines (44%), Aer Lingus (44%) and Finnair (44%).

What are the cheapest flights from Portland to London?

The cheapest flight price from Portland to London is $555. On average you can expect to pay $1,856. The most popular route, (Portland - London Heathrow), can usually be booked for $587.

What does PDX to LHR mean?

PDX stands for Portland Airport, while LHR stands for London Heathrow Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Ready for more IATA code knowledge? These are related airports for your current travel destination: London Gatwick Airport (LGW), London City Airport (LCY), London Stansted Airport (STN), London Luton Airport (LTN), London Southend Airport (SEN).

Where are the most common layover locations when flying from Portland to London?

What are some popular things to do or see while on a layover in Seattle?

Seattle Waterfront, Pike Place Market, and Space Needle are the most popular attractions in Seattle if you're in need of something to do during your layover. Travelers on a layover in Seattle can visit Seattle Waterfront, Pike Place Market, and Space Needle, by traveling 10.9 mi, 11.2 mi, and 12.0 mi, respectively after landing at Seattle/Tacoma Intl. Travelers can book a car rental at Seattle/Tacoma Intl for about $47 per day to make their sightseeing more efficient.

Where are the least popular layover locations for Portland to London flights?

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 Portland to London

Discover the top 10 airlines that operate flights from Portland 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 2,836,739 searches. Data last updated December 6, 2023.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$570Average$918FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
FinnairCheapest$620Average$870FlexibilityNo cancel feeOn-time76%
Search Finnair flights
DeltaCheapest$646Average$1,023FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AtlanticCheapest$657Average$1,071FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest$658Average$1,042FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest$659Average$869FlexibilityNo cancel feeOn-time75%
Search KLM flights
IberiaCheapest$663Average$989FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Air CanadaCheapest$671Average$882FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air FranceCheapest$676Average$791FlexibilityNo cancel feeOn-time77%
Search Air France flights
British AirwaysCheapest$678Average$1,066FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Search flights to London by cabin class

Hourly flight availability from Portland to London

Find hourly flight availability from Portland 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 December 6, 2023.
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
100%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Portland to London

Explore weekly flight availability from Portland 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 December 6, 2023.
Sunday5daily flights
Monday5daily flights
Tuesday0daily flights
Wednesday5daily flights
Thursday0daily flights
Friday5daily flights
Saturday0daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portland to London?

Deals for Portland to London 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 Portland to London?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland to London.

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

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

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

Of course! You can now track prices for flights from Portland to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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