Find Cheap Flights from Portland to London Heathrow (PDX - LHR)

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Good to Know

Low Season:
April
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
16%
expected price increase
Average Price:
$2329
(avg. price over the last 2 weeks)
Good Deal:
$2329
or less (round trip)

When to Book Flights from Portland to London Heathrow

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

The cheapest flight from Portland to London Heathrow was found 90 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is April.
Morning departure is around 5% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Portland to London Heathrow Flights

How long does a flight from Portland to London Heathrow take?
An average nonstop flight takes 11h 50m, covering a distance of 4901 miles.
Which airlines provide the cheapest flights from Portland to London Heathrow?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($628), British Airways ($628) and Virgin Atlantic ($631).
Do I need a passport to fly between Portland and London Heathrow?
Yes.
What’s the cheapest day of the week to fly Portland to London Heathrow?
For Portland to London Heathrow, Saturday is the cheapest day to fly on average and Sunday is the most expensive. Flying from London Heathrow back to Portland, the best deals are generally found on Thursday, with Wednesday being the most expensive.

Book cheap flights from Portland to London Heathrow (round-trip)

Airports
Origin
Portland
$628
only
$628
Destination
London
$628
only
$628
Sat, Feb 10
PDX
LHR
36h 20m
Tue, Feb 20
LHR
PDX
19h 10m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Feb 12
PDX
LHR
17h 01m
Tue, Feb 20
LHR
PDX
20h 58m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13970 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
IND
ORD
Okay 4.0

Connecting flight experience - Had to wait in a line for around 5 hours just to speak with a customer service representative at the London airport because my previous flight was delayed and I had missed my connecting flight.

DEN
LHR
Excellent 8.3

Seats were comfortable and staff was very attentive as well as respectful of us when I was sleeping

There was condensation leaking from the ceiling of the cabin. A crew member said this was normal, would have been nice to know this ahead of time to reassure me that for a first-time overseas flier that this is normal.

ORD
LHR
Okay 4.0

Connecting flight experience

EWR
LHR
Good 6.0

My seat was comfortable, with good head and neck support.

BA doesn't allow guitars as carry ins, unlike most every other overseas carrier. That's a major negative for me, and I've spread the word to other musicians who will avoid the company. Terrible policy.

FRA
LHR
Mediocre 2.0

Absolute nightmare dealing with British cancelled flight and then having them rebook me with American, their "partner" company. Spent three hours this morning dealing with these two unprofessional companies and their lack of communication between each other.

Mon, Feb 5
PDX
LHR
14h 37m
Wed, Feb 7
LHR
PDX
18h 05m
Trip: 3 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 962 reviews
Overall
8.1
Boarding
8.3
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.8
BWI
DTW
Mediocre 3.3

The crew was rude.

MEL
LAX
Good 7.3

in flight experience is above average

The computer system really needs a lot of improvement. We were checking in with our infant daughter and it took 50 minutes to check in with a senior person helping the check in person and phone calls to their technical assistance. We were told an infant is difficult in their system, and our dual national daughter was another layer of complication.

CHC
BNE
Excellent 9.6

The crew were very friendly and attentive through out flight.

LAX
MEL
Excellent 10.0

Crew was very nice helpful and attentionate Entertainment had plenty of variety maybe not so many new movies but enough to find one you have not seen or classic you could watch again Food was good

We weighted our hand luggage at the counter and then they ask again during boarding little confusing

LAX
BNE
Excellent 10.0

Very polite and helpful staff.

Sun, Apr 22
PDX
LHR
20h 45m
Tue, Apr 24
LHR
PDX
13h 10m
Trip: 3 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6407 reviews
Overall
7.6
Boarding
7.3
Comfort
7.5
Crew
8.2
Entertainment
7.8
Food
6.3
ORD
KEF
Good 6.0

Overall great airline

Handled my layover transition extreme Lu poorly. We’re very rigid and I didn’t get into Zurich until the late evening. Missed a very important meeting...

KEF
MSP
Mediocre 2.0

Nothing

That they didnt hold the plane for us when it was delayed in Paris.

KEF
MCO
Good 6.3

Wheelchair sbailanlr

No good food n not free

IAD
KEF
Okay 4.6

The fact that no one told me that my ticket price didn't include one free luggage...I had to pay $100 each way for my luggage!!

KEF
CDG
Excellent 8.6

It does the job of taking you on time to the place you are flying to. I had forgotten that you have to purchase food but I find that much better: a lot less waste that on airlines where it is provided.

Mon, Jan 22
PDX
LHR
15h 45m
Sat, Feb 3
LHR
PDX
14h 41m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 10
PDX
LHR
20h 35m
Mon, Apr 30
LHR
PDX
22h 19m
Trip: 21 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 3242 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
7.1
Food
6.8
MAD
TLV
Good 6.3

On time, Very professional crew.

Could not do online check-in.

ORY
MAD
Good 6.0

Landed in foggy night. Crew fantastic. On time. Cabin clean

DUB
MAD
Mediocre 2.0

Nothing

Second time they lose my luggage. After 9 hours in the airport they were not able to put my luggage in the right place.

MAD
TLV
Excellent 9.6

Good seat compared to other airlines

The USB connector in my seat didn’t work

GRU
MAD
Excellent 9.6

My USB connector didn’t work

Fri, Feb 2
PDX
LHR
11h 50m
Mon, Feb 5
LHR
PDX
13h 31m
Trip: 4 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20235 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
MIA
YYZ
Mediocre 3.0

no flights between noon and 9pm. pay for snacks..on westjet they were free

YVR
YOW
Mediocre 2.6

The fact that the in-flight meal was as cold as the crew, and you got to pay for that coldness. Just love it! You get me right?

The Montreal-Vancouver route was by far the worst. The attitude of the crew was denigrating and arrogant.

TPE
YVR
Mediocre 3.3

The plane was quite new, and that's pretty much it.

The food is unsuitable for human consumption and so as some of the crew were unsuitable for the position.

YYZ
FLL
Okay 4.6

Late departure- even with snow issues have not had similar problems with WestJet

MCO
YYZ
Good 6.0

Flight back was OK but flight to Orlando was not. Travelling with s 94 yr old man in a wheelchair. Everything at Pearson is not conduscent to travel with a handicapped person. Poor layout, poor assistance, non caring people, long distances,, and final straw was air canada started boarding without calling for handicapped first. We had to stop them and then fight our way up the aisle with people all in the way. Terrible, just lousey. 3 and a half hours before flight we arrived and didn't even have a chance to get some lunch before flight. I give Toronto and air Canada the worst possible rating of any airport or airline I've ever dealt with. John O"Hearn

Sun, Apr 22
PDX
LHR
15h 20m
Mon, Apr 30
LHR
PDX
33h 50m
Trip: 9 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 2804 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
JFK
HEL
Excellent 10.0

modern aircraft, excellent service , nice crew

TLL
HEL
Excellent 10.0

The nicest cabin crew!

JFK
HEL
Okay 5.3

Fast connection in Helsinki!

Delay in JFK, old aircrafts and mulfunctioned entertainment equipment.

HEL
JFK
Good 7.6

Crew, entertainment and food service was excellent

Seats too crowded for 8 hour flight. As soon as the person in front leans back you have no room it is unbelievably uncomfortable to have a seat back in your face for that long!

HEL
JFK
Okay 4.0

UNCOMFORTABLE BED AND SERVICE

BED, DRINKS

Thu, Mar 8
PDX
LHR
16h 35m
Mon, Mar 19
LHR
PDX
18h 20m
Trip: 11 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25986 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
GIG
JFK
Okay 4.6

Nice crew

I booked a LATAM flight for a 10.5 hour flight specifically because they have better in flight entertainment. I arrived at the airport and found it it was operated by AA. 10.5 hours with zero in flight entertainment. HORRIBLE EXPERIENCE.

PWM
DCA
Okay 5.3

Wish they had told me there was a shuttle to other side of airport. Had not been to this airport in many years.

MCO
MIA
Mediocre 2.0

Flight got canceled for over a week.

LAX
PHL
Excellent 10.0

A great flight

No real food to eat

BOS
JFK
Good 6.0

No hassle of changing terminals in JFK, no bagagge claim, AA check-in-this time, was a "good luck"....Connection in Helsinki, very quik!

Finnair flight AY06 are old aircrafts. Every other in-seat monitor was out of order, flight attendants could not do much. That created mess for passengers, trying to move their seats to the ones with working monitors.....

Wed, Mar 21
PDX
LHR
16h 25m
Mon, Apr 2
LHR
PDX
23h 01m
Trip: 13 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1536 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
ABZ
AMS
Excellent 10.0

Thankful for coffee being served without charge. Not all airlines do that.

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

JFK
AMS
Good 7.6

Two hours delay in the start.

AMS
IAH
Excellent 8.6

Old airplane with not really comfy seats. No outlets for charging devices. Very old entertainment screen.

Tue, Apr 10
PDX
LHR
20h 40m
Tue, Apr 24
LHR
PDX
20h 25m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 10
PDX
LHR
14h 55m
Thu, May 3
LHR
PDX
16h 14m
Trip: 24 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13970 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
ORD
Mediocre 2.0

No one could help. Finnair wouldn’t issue a refund. British Airways were not helpful.

Everything

EWR
LHR
Good 6.0

My seat was comfortable, with good head and neck support.

BA doesn't allow guitars as carry ins, unlike most every other overseas carrier. That's a major negative for me, and I've spread the word to other musicians who will avoid the company. Terrible policy.

FRA
LHR
Mediocre 2.0

Absolute nightmare dealing with British cancelled flight and then having them rebook me with American, their "partner" company. Spent three hours this morning dealing with these two unprofessional companies and their lack of communication between each other.

LHR
LAS
Mediocre 3.3

This seems like an old plane. Poor quality of screen to watch movies and very small selection of movies. No charging spot to plug and charge our phones. This was a long trip and these two elements are important to make the trip enjoyable.

MXP
LHR
Excellent 8.0

Flight was not to crowded

Seat are smaller than usual

Wed, Feb 7
PDX
LHR
18h 50m
Wed, Feb 14
LHR
PDX
14h 41m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Feb 13
PDX
LHR
11h 50m
Tue, Feb 20
LHR
PDX
14h 41m
Trip: 8 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20235 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
YYZ
DUB
Good 7.3

The flights were great, on time and no problems. I was very comfortable and the food was good. FLight attendents were great except one guy who was not friendly and needed a vacation or another job.

LGA
YYZ
Okay 4.0

Direct

9:30 flight finally took odd at 11:30 .... delayed and had to set on the runway. Arrivedabd gad to wait 30 min for gate. Will be in terms mal by 1:30

MIA
YYZ
Mediocre 3.0

no flights between noon and 9pm. pay for snacks..on westjet they were free

YYZ
FLL
Okay 4.6

Late departure- even with snow issues have not had similar problems with WestJet

MSP
YYZ
Excellent 8.6

Crew and flight were great

Not great food, but that's ok.

Tue, Feb 20
PDX
LHR
23h 10m
Mon, Feb 26
LHR
PDX
34h 00m
Trip: 7 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 3242 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
7.1
Food
6.8
ORY
MAD
Good 6.0

Landed in foggy night. Crew fantastic. On time. Cabin clean

MAD
JFK
Good 7.3

Nice newer plane Both USB and power ports

There was a horrible stench of sewage much of the flight Meal choices were very limited Entertainment was pretty limited The wifi has a 200 MB limit -- I blew threw it despite spending 30 Euros -- that's never happened to me before One of the flight attendants was really out of it

FCO
MAD
Good 7.3

EVERYTHING AS PROMISED . ALL WENT THROUGH IN A SMOOTH AND TIMELY WAY

TRAVELING IN COACH ON A LONG HAUL FLIGHT IS A NECESSARY EVIL

MAD
TLV
Mediocre 3.6

Not enough place on board. Very poor company

JFK
MAD
Excellent 8.3

On time, Very professional crew.

Could not do online check-in.

Mon, Feb 5
PDX
LHR
14h 06m
Thu, Feb 15
LHR
PDX
15h 03m
Trip: 11 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25986 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
PHL
Excellent 10.0

Wonderful flight

The only thing I didn’t like is that he have any fresh food they said something was going on in LA that prevented him from giving us actual food other than that everything else was fine

PWM
DCA
Okay 5.3

Wish they had told me there was a shuttle to other side of airport. Had not been to this airport in many years.

LAX
NRT
Mediocre 2.0

nothing

had to take another flight, ticket agent was able to change me to a different flight on JAL. however, JAL could not access the ticket info and ticket agent would not take my payment. result was missing that flight, ticket manager told me it's my fault and tough luck no refund. American airlines told me the same, ended up losing my money for the ticket purchase. i booked another new flight with another airline direct. worst experience in my life using kayak.

JFK
MIA
Excellent 8.8

Almost everything. Only the food was lacking. I like their new planes. The outlet at the seat in coach. The magazine options at the seat as well. I did not look at the entertainment so I will not rate that. The crew was professional.

Just the food options. Ginger snaps was what was served for food and a beverage. I suppose this is what obtains on most airlines these days but can't I hope for something more like maybe a sandwich? AA has the opportunity to set themselves apart in this area.

TUS
PHX
Mediocre 2.0

Nothing.

Everything.

Thu, Feb 8
PDX
LHR
14h 37m
Sat, Feb 10
LHR
PDX
16h 53m
Trip: 3 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 962 reviews
Overall
8.1
Boarding
8.3
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.8
BWI
DTW
Mediocre 3.3

The crew was rude.

DTW
LHR
Good 7.6

Excellent entertainment options, out stewardess was fantastic.

Cramped seats.

MEL
LAX
Good 7.3

in flight experience is above average

The computer system really needs a lot of improvement. We were checking in with our infant daughter and it took 50 minutes to check in with a senior person helping the check in person and phone calls to their technical assistance. We were told an infant is difficult in their system, and our dual national daughter was another layer of complication.

LAX
MEL
Excellent 10.0

Crew was very nice helpful and attentionate Entertainment had plenty of variety maybe not so many new movies but enough to find one you have not seen or classic you could watch again Food was good

We weighted our hand luggage at the counter and then they ask again during boarding little confusing

LHR
BOS
Excellent 8.0

The crew was excellent. Flight was quite comfortable. Nice attention to service

I would have appreciated another round of hot drinks.

Wed, Apr 11
PDX
LHR
14h 49m
Thu, May 3
LHR
PDX
16h 14m
Trip: 23 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13970 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
MXP
LHR
Excellent 8.0

Flight was not to crowded

Seat are smaller than usual

TXL
LHR
Mediocre 3.0

British Airways overbooked this flight and made it unclear if I can board my flight. Overbooking is such a greedy behavior and airlines should refrain from engaging in this dubious policy. It is the second time this happens to me with BA.

FRA
LHR
Mediocre 2.0

Absolute nightmare dealing with British cancelled flight and then having them rebook me with American, their "partner" company. Spent three hours this morning dealing with these two unprofessional companies and their lack of communication between each other.

LHR
LAS
Mediocre 3.3

This seems like an old plane. Poor quality of screen to watch movies and very small selection of movies. No charging spot to plug and charge our phones. This was a long trip and these two elements are important to make the trip enjoyable.

LHR
MXP
Okay 4.6

Uneventful, other than having missed the original connecting flight on account of delays.

There was no food or entertainment, so I can't rate them.

Sun, Feb 11
PDX
LHR
16h 39m
Thu, Feb 22
LHR
PDX
13h 05m
Trip: 12 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1536 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

KRK
AMS
Mediocre 3.0

Flight way delayed 3 hours. Staff gave no information and wouldn't help rebook us onto other flights. They gave us food vouchers 2 minutes before we finally boarded, so we couldn't use them. The food on the plane had spoiled so we were all starving on the flight, and we all missed our connections. Horrible experience and wouldn't fly with KLM again.

AMS
IAH
Excellent 8.6

Old airplane with not really comfy seats. No outlets for charging devices. Very old entertainment screen.

Fri, Apr 13
PDX
LHR
20h 40m
Mon, Apr 30
LHR
PDX
33h 15m
Trip: 18 days
Overall 0.0 Poor
Based on 0 reviews
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.