Cheap flights from Portland to London Heathrow Airport from £458
This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
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 26 July 2024.
What is the cheapest month to fly from Portland, Maine to London Heathrow Airport?
Flights from Portland, Maine to London Heathrow Airport lean towards being more expensive in June. Prices are generally better when you fly from Portland, Maine to London Heathrow Airport in February, with the cheapest ticket starting at £474.
What is the cheapest time of day to fly from PWM to LHR?
When flying from Portland, Maine to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Cheap American Airlines flights from Portland to Heathrow
Explore cheap flight options specifically provided by American Airlines 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 1,000,913 searches. Data last updated 26 July 2024.
Peruse some of the lowest-priced American Airlines flights we've found from Portland to London. Make sure to check back often as deals are often changing.
Cheap United Airlines flights from Portland to Heathrow
Explore cheap flight options specifically provided by United Airlines 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 1,000,913 searches. Data last updated 26 July 2024.
Browse through some of the cheapest United Airlines flights travelling from Portland to London. Make sure to examine the flight information before completing your reservation.
Cheap Portland to Heathrow flights in July & August 2024
Find cheap flight options from Portland to Heathrow specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 1,000,913 searches. Prices were last updated on 26 July 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. Check back soon for alternative fares.
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 1,000,913 searches. Data last updated 26 July 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. Check back soon for alternative fares.
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 1,000,913 searches. Data last updated 26 July 2024.
Book one of these great deals on flights from Portland to London. Users should examine the flight details to ensure there are no surprises.
Find flights from Portland to Heathrow within your budget
Customise 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 1,000,913 searches. Data last updated 26 July 2024.
Fly from
Fly to
Budget
£458 - £866
Route
Depart
Return
Price
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Tue 8/10
1 stop12h 18m
London Heathrow
Tue 22/10
2 stops25h 27m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Wed 25/9
1 stop10h 15m
London Heathrow
Tue 8/10
2 stops16h 54m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Wed 25/9
1 stop12h 13m
London Heathrow
Tue 8/10
1 stop11h 40m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Tue 27/8
2 stops22h 45m
London Heathrow
Tue 3/9
2 stops31h 01m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Thu 5/9
1 stop15h 24m
London Heathrow
Tue 17/9
1 stop16h 03m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Wed 2/10
1 stop9h 41m
London Heathrow
Mon 7/10
1 stop14h 13m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Thu 22/8
1 stop10h 31m
London Heathrow
Mon 26/8
1 stop13h 49m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Sun 1/9
1 stop14h 16m
London Heathrow
Fri 6/9
2 stops20h 10m
PortlandLondon Heathrow
PWM - LHR
PWMLHR
Portland
Sun 25/8
1 stop20h 35m
London Heathrow
Sat 31/8
2 stops21h 56m
No data available for this route at this time. Please check back soon.
Best time to book a flight from Portland to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Portland with our price prediction graph.
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 | 4 - 17 °C |
|---|
If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).
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 26 July 2024.
See what other customers who have flown with American Airlines, United Airlines and Air Canada from Portland to London have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Food
Comfort
Overall
Entertainment
Crew
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Boarding
Food
Comfort
Overall
Entertainment
Crew
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Boarding
Food
Comfort
Overall
Entertainment
Crew
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Boarding
Food
Comfort
Overall
Entertainment
Crew
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Boarding
Food
Comfort
Overall
Entertainment
Crew
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Boarding
Food
Comfort
Overall
Entertainment
Crew
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Related info for your journey
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