Cheap flights from Portland (PWM) to Heathrow (LHR) from $570
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 8/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
Cheap flight deals from Portland to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Heathrow (LHR). 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 April 30, 2024.
Popular in | July |
|---|---|
Cheapest in | November |
Round-trip from | $643 |
One-way from | $634 |
What is the cheapest day to fly round-trip from Portland, Maine to London Heathrow Airport?
It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
What is the cheapest month to fly from Portland, Maine to London Heathrow Airport?
April can be a great time to fly to London Heathrow Airport from Portland, Maine with a flight ticket averaging about $955. Cheapflights users have found deals in the month of April for as cheap as $604. The most expensive prices can be found in the month of June.
When is the cheapest time to fly from Portland, Maine to London Heathrow Airport (PWM - LHR)?
It’s typically best to fly out from Portland, Maine to London Heathrow Airport at noon. Doing so could potentially save you 24% on the flight price compared to flying in the afternoon, which is usually more expensive.
Cheap Delta flights from Portland to Heathrow
Explore cheap flight options specifically provided by Delta for the route between Portland and Heathrow. 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 2,913,887 searches. Data last updated April 30, 2024.
Take a peek at the cheapest Delta flights we've detected traveling from Portland to London. Deals update often to give you more flight options matching your criteria
Cheap KLM flights from Portland to Heathrow
Explore cheap flight options specifically provided by KLM for the route between Portland and Heathrow. 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 2,913,887 searches. Data last updated April 30, 2024.
Take a gander at the lowest prices we've found on KLM flights from Portland to London. Check back soon if you're not seeing flights that suit your needs.
Cheap Portland to Heathrow flights in April & May 2024
Find cheap flight options from Portland to Heathrow specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,913,887 searches. Prices were last updated on April 30, 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. Check back regularly for other flight deals.
Portland to Heathrow 2024 flight deals
Discover exclusive flight deals for travel between Portland and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,913,887 searches. Data last updated April 30, 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. Check back regularly for other flight deals.
Portland to Heathrow flights leaving soon
Find last-minute flight options from Portland to Heathrow 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 2,913,887 searches. Data last updated April 30, 2024.
Book one of these great deals on flights from Portland to London. To prevent any unwanted surprises, users should verify their flight info before booking.
One-way flights to Heathrow from Portland
Search for one-way flight options from Portland to Heathrow. 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 2,913,887 searches. Data last updated April 30, 2024.
Take a look at some of the best available options we've come across on one-way flights from Portland to London. Users can also find round-trip Portland to London flights by using the search form above.
Find flights from Portland to Heathrow within your budget
Customize your flight search to find flights from Portland to Heathrow 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 2,913,887 searches. Data last updated April 30, 2024.
Fly from
Fly to
Budget
$664 - $1,198
Route
Depart
Return
Price
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Tue 9/24
1 stop15h 20m
London Heathrow
Tue 10/1
1 stop14h 33m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Tue 9/24
1 stop10h 28m
London Heathrow
Tue 10/1
2 stops16h 07m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Tue 8/27
1 stop12h 40m
London Heathrow
Fri 9/13
1 stop13h 38m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Tue 8/27
3 stops16h 32m
London Heathrow
Wed 9/11
3 stops22h 31m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Sun 5/19
1 stop14h 09m
London Heathrow
Sun 5/26
2 stops19h 57m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Sun 5/19
1 stop12h 14m
London Heathrow
Sun 5/26
1 stop18h 07m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Sun 5/19
2 stops17h 55m
London Heathrow
Sun 5/26
2 stops18h 19m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Sun 5/12
1 stop20h 45m
London Heathrow
Sat 5/25
1 stop16h 34m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Sat 8/31
1 stop17h 35m
London Heathrow
Thu 9/12
1 stop15h 56m
When is the cheapest time to fly from Portland, Maine to London Heathrow Airport?
Use this chart to determine the cheapest time to fly round-trip from Portland to Heathrow. Price data was last updated on April 28, 2024.
Average price of flights to Heathrow by month
Plan your trip from Portland to Heathrow by taking into account the cheapest months to travel. The average price of a one-way flight from Portland to Heathrow is currently $602 while a round-trip flight costs $871. Price data was last updated on April 28, 2024.
Currently, November is the cheapest month in which you can book a flight from Portland, Maine to London Heathrow Airport (average of $653). Flying from Portland, Maine to London Heathrow Airport in June is currently the most expensive (average of $1,165). 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
$674
February
$663
March
$715
April
$692
May
$738
June
$1,165
July
$984
August
$777
September
$746
October
$711
November
$653
December
$672
Temperature and rainfall in Heathrow by month
Plan your trip to Heathrow by taking into account the average temperature and rainfall totals by month.
LON Temperature | 39.2 - 62.6 °F |
|---|
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated April 30, 2024.
Read reviews from past customers who have flown Delta, KLM and United Airlines from Portland to London. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Food
Entertainment
Comfort
Crew
Overall
Reviews
Terrible flight crew that skipped our row for service multiple times.
Boarding
Food
Entertainment
Comfort
Crew
Overall
Reviews
Terrible flight crew that skipped our row for service multiple times.
Boarding
Food
Entertainment
Comfort
Crew
Overall
Reviews
Terrible flight crew that skipped our row for service multiple times.
Boarding
Food
Entertainment
Comfort
Crew
Overall
Reviews
Terrible flight crew that skipped our row for service multiple times.
Boarding
Food
Entertainment
Comfort
Crew
Overall
Reviews
Terrible flight crew that skipped our row for service multiple times.
Related info for your journey
Find useful and relevant information for your journey from Portland to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Portland to HeathrowSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Portland to Heathrow
Discover the top 3 airlines that operate flights from Portland to Heathrow. 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 2,913,887 searches. Data last updated April 30, 2024.
Search flights from Portland to Heathrow by cabin class
Find flights from Portland to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
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How does Cheapflights help users find flights from Portland to Heathrow?
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Why should you use Cheapflights to find cheap flight tickets from Portland to Heathrow?
Cheapflights helps you find that perfect flight to Heathrow from Portland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Portland to Heathrow with no change fees?
Yes, we can. To see specific flights from Portland to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.
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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!