Question 1

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

Accepted Answer

Currently priced at £546, Icelandair will fly you from London Heathrow Airport to Portland and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Finnair and Scandinavian Airlines - these airlines can fly you to your destination from £563 and £578, respectively. Users have found that Icelandair is 17% cheaper than the other options available to this destination.

Question 2

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

Accepted Answer

The cheapet airlines for a one-way flight from London Heathrow Airport to Portland are Icelandair (£517), WestJet (£564), and Aer Lingus (£567).

Question 3

How far ahead should I book a flight from London Heathrow Airport to Portland?

Accepted Answer

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Portland, you should look to book at least 77 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.

Question 4

What is the cheapest month to book a flight from London Heathrow Airport to Portland?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Portland (average of £736). Flying from London Heathrow Airport to Portland in July is currently the most expensive (average of £1,048). 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.

Question 5

What is the cheapest day to fly from London Heathrow Airport to Portland?

Accepted Answer

Travellers seeking maximum savings on their London Heathrow Airport to Portland flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

Weekly flight availability from London Heathrow Airport to Portland

Accepted Answer

The most flights from LHR 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).

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in Portland ranges from 18.0 - 142.0 inches per month. November is typically the wettest month, when rainfall can reach 142.0 mm. July is typically the driest time to visit Portland when rainfall is around 18.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Question 9

What are the cheapest flights from London Heathrow Airport to Portland?

Accepted Answer

Looking at all options, your cheapest flight can be booked for £471. While the most popular route (London Heathrow - Portland) can be booked for £401 on average our data indicates £1,635 when flying from London Heathrow Airport to Portland.

Question 10

What are the most reliable airlines from London Heathrow Airport to Portland?

Accepted Answer

Before booking your flight to Portland from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (85%), Alaska Airlines (85%), Aer Lingus( 85%).

Question 11

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

Accepted Answer

The most popular airlines flying from London Heathrow Airport to Portland are Air Canada, Finnair and British Airways. Something to consider prior to booking your flight.

Question 12

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

Accepted Answer

Users have found that flying from London Heathrow Airport to Portland on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

Question 13

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

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 60 days in advance, which can save you up to 18% on flights from London Heathrow Airport to Portland compared to booking the week you need them. Waiting 60 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £573. For sooner than that we have options available in the next 3 days from £718.

Question 14

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

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, March can be a great choice for travel to Portland. Flights to Portland from London Heathrow Airport in March are about £659 on average during March, but can be found for as low as £456.

Question 15

What is the cheapest time of day to fly from LHR to PDX?

Accepted Answer

One of the essential ways to save on airfare from London Heathrow Airport to Portland is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 22% on airfare.

Question 16

What airport do you fly into for flights to Portland from London Heathrow?

Accepted Answer

Portland (PDX), located 6.0 mi from the city center, is the airport you fly into when you book flights from London Heathrow to Portland. 9 airlines have flights to Portland from London Heathrow on a regular basis. Booking flights from London Heathrow to Portland should not be difficult; the airport handles an average of 7 inbound flights from London Heathrow per day.

Question 17

Can I find deals for flights from Heathrow to Portland that include hotel bookings?

Accepted Answer

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

Question 18

How can I find direct flights from Heathrow to Portland?

Accepted Answer

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

Question 19

Can I find deals for business class flights from Heathrow to Portland?

Accepted Answer

Yes. Cheapflights offers flight deals from Heathrow 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.

Question 20

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

Accepted Answer

Cheapflights helps you search for flights from Heathrow 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.

Question 21

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

Accepted Answer

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Portland for you. Better yet — we are completely free to use.

Question 22

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

Accepted Answer

Yes, we can. To see specific flights from Heathrow to Portland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Question 23

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

Accepted Answer

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Portland from Heathrow today and book when prices fit your budget.

Round-trip from	£546
One-way from	£425
Popular in	August
Cheapest in	November
Average price	£706
Good round-trip deal	£560 or less
Good one-way deal	£604 or less

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£434	Average£582	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Finnair	Cheapest£483	Average£594	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
United Airlines	Cheapest£484	Average£607	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	Cheapest£492	Average£534	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Virgin Atlantic	Cheapest£502	Average£649	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£504	Average£697	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£514	Average£620	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
KLM	Cheapest£550	Average£670	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Iberia	Cheapest£567	Average£758	FlexibilityNo cancel fee	On-time77%	Search Iberia flights

Cheap flights from London Heathrow Airport to Portland from £425

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London Heathrow to Portland are usually found in November or January, booked 77 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Heathrow to Portland

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Find flight deals from Heathrow to Portland

Cheapest flights from Heathrow to PortlandExplore the most affordable flight options available from Heathrow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 June 2025.

Explore the most affordable flight options available from Heathrow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Portland that are best for you.

Best time to book a flight from Heathrow to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Heathrow with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Portland

How far ahead should I book a flight from London Heathrow Airport to Portland?

Use this chart to determine the optimal time to book a return flight from Heathrow to Portland. Price data was last updated on 23 May 2025.

What is the cheapest month to book a flight from London Heathrow Airport to Portland?

What is the cheapest time of day to fly from LHR to PDX?

Find hourly flight availability from Heathrow 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 7 June 2025.

What is the cheapest day to fly from London Heathrow Airport to Portland?

Use this chart to determine the cheapest time to fly return from Heathrow to Portland. Price data was last updated on 16 December 2024.

Weekly flight availability from London Heathrow Airport to Portland

Explore weekly flight availability from Heathrow 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 7 June 2025.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

Reviews of airlines servicing Portland

Read through reviews of airlines operating flights from London to Portland, such as Delta, Finnair and SWISS. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow?

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

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

What are the most reliable airlines from London Heathrow Airport to Portland?

What are the cheapest flights from London Heathrow Airport to Portland?

Can I find deals for flights from Heathrow to Portland that include hotel bookings?

How can I find direct flights from Heathrow to Portland?

Can I find deals for business class flights from Heathrow to Portland?

What is the cheapest month to book a flight from London Heathrow Airport to Portland?

Travelling to a place near London Heathrow Airport?

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.

Alternative routes for Heathrow to Portland

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Heathrow to Portland

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 Heathrow to Portland?

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

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

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

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Cheapest flights from Heathrow to Portland
Explore the most affordable flight options available from Heathrow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 June 2025.