Find Cheap Flights from Maine to London

Search hundreds of travel sites at once for deals on flights to London

Depart
Return
Any month
Compare vs. KAYAK |

Maine to London Flight Information

Flights Arrive in London
Flights Depart from Maine
Flight Price $664
Airlines Virgin Atlantic, Delta, KLM, Air Canada, Turkish Airlines, United Airlines, TAP AIR PORTUGAL

Book cheap flights from Maine to London (round-trip)

Airports
Origin
Bangor
$1518
only
$1518
Portland
$664
only
$664
Destination
London
$664
only
$664
$4022
only
$4022
$1649
only
$1649
Wed, Feb 27
PWM
Portland
LHR
London Heathrow
21h 10m
Wed, Mar 6
LHR
London Heathrow
PWM
Portland
17h 39m
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 1,289 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
BNE
LAX
Excellent 10.0

Pros: Food was great. Friendly stas staff.

Cons: LAX AIRPORT signage leaves something to be desired. Nothing to do with airline.

LAX
LHR
Excellent 8.6

Cons: Seats were tight.

LHR
BOS
Excellent 8.3

Pros: modern comfortable plane, in flight entertainment was good, service was outstanding.

Cons: food was meh at best, seats in economy are tight and there is no legroom

BOS
LHR
Good 6.0

Pros: They didn't serve any refreshments or even water

LAS
LGW
Excellent 10.0

Pros: The food was great. The flight attendants were very courteous and took excellent care of all passengers

Cons: Long flight lol j/k can't help that. It was a great flight, no complaints

Sun, Nov 25
PWM
Portland
LHR
London Heathrow
13h 13m
Wed, Dec 5
LHR
London Heathrow
PWM
Portland
15h 17m
Trip: 11 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,422 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
ATL
SFO
Good 6.0

Pros: Transfer f from first flight leg

Cons: Food and the 757 lay out

MSP
MCO
Excellent 8.6

Pros: Almost everything

Cons: Could not get entertainment interface with my tablet to work, especially since I paid extra to do so. Could not access live TV on my seat/chair screen.

BUF
LGA
Excellent 9.3

Pros: Excellent flight with efficient service. Flight was on time and friendly staff

Cons: Efficiency

SMF
MSP
Excellent 10.0

Pros: Everything

Cons: Nothing

SEA
BOI
Good 6.6

Cons: 20 minutes late

Mon, Jan 14
PWM
Portland
LHR
London Heathrow
16h 46m
Sun, Jan 20
LHR
London Heathrow
PWM
Portland
33h 43m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 2,440 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.1
Food
7.5
YYZ
AMS
Excellent 10.0

Pros: Staff very pleasant

Cons: Evening snack was not the greatest breakfast was pretty food

FCO
AMS
Excellent 10.0

Pros: Crew was awesome

Cons: .

ARN
AMS
Excellent 8.3

Pros: Time and Good clean place.. in This case airpöane..

Cons: It was not entreteiment st all

ATL
AMS
Excellent 8.0

Pros: Face recognition was amazing

Cons: Too hot on plane

AMS
IAH
Excellent 8.0

Pros: Very friendly and helpful crew.

Fri, Mar 22
PWM
Portland
LHR
London Heathrow
25h 17m
Sat, Mar 30
LHR
London Heathrow
PWM
Portland
17h 57m
Trip: 9 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 23,213 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
YYZ
SFO
Mediocre 3.0

Cons: Plane way too cramped. Made me check my bag but it clearly would have fit and there was lots of room overhead. Still waiting for my bag more than half hour after my flight. Very unhappy. Totally unacceptable.

YYZ
RDU
Mediocre 3.3

Pros: Nothing

Cons: I didn’t like anything about this flight, except that we arrived safely. I had the last seat, next to the toilet, and that container or whatever it is, was dirty. Every time someone flushed, I was bathed in the smell of urine. It was raining in Toronto; consequently, my checked bag was wet through. I’m glad I was coming home rather than arriving at a vacation destination, where all my stuff would’ve been wet. I’d like to see some effort put into keeping my bag dry. Also, the passengers had to slog through the rain to get on the plane!

BOS
YYZ
Good 7.6

Pros: Nice seats fast boarding

Cons: Snack can be more richer

YXE
YYZ
Good 6.3

Pros: Quick boarding and takeoff

Cons: The sound connections for the in flight entertainment was faulty. Bring your own device would be better. Seats were uncomfortable, they need replacing.

YVR
SFO
Mediocre 2.0

Pros: Absolutely nothing horrible flight

Cons: We were delayed 1hour and 45 minutes leaving Vancouver. As a result we missed our flight to Tokyo. We were promised by the flight attendant that our flights would be rebooked upon arrival in SAN Francisco and they were not.

Tue, Apr 9
BGR
Bangor
LHR
London Heathrow
21h 08m
Tue, Apr 23
LHR
London Heathrow
BGR
Bangor
20h 06m
$1518
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Dec 2
PWM
Portland
LHR
London Heathrow
12h 30m
Sat, Dec 22
LHR
London Heathrow
PWM
Portland
11h 44m
Trip: 21 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,422 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
SAN
LAX
Good 7.3

Pros: Delta was OK

Cons: Lack of attention by the fly stuard in Virgin Australia Virgin had a 45´delay

TYS
ATL
Mediocre 2.0

Cons: Sat on the tarmac for 20 Minutes, after taking off late. Arrived to my connecting gate 10 Minutes prior to scheduled departure with no delta attendants in sight and watched my plane sit at the gate and pull away with no way to get on board. Now I’m waiting unnecessarily for 4 hours on another flight.

MCO
CVG
Excellent 8.6

Pros: Cincinnati airport was clean and efficient

Cons: MCO airport gate was a mess and did not have easy access to charge phones.

BUF
LGA
Excellent 9.3

Pros: Excellent flight with efficient service. Flight was on time and friendly staff

Cons: Efficiency

SMF
MSP
Excellent 10.0

Pros: Everything

Cons: Nothing

Wed, Jan 2
PWM
Portland
LGW
London Gatwick
29h 14m
Tue, Jan 8
LGW
London Gatwick
PWM
Portland
16h 35m
$1649
Trip: 7 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 20,919 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
IST
ORD
Excellent 10.0

Cons: I like everything. I know most countries dont like turks. But turkish are best nationality. With big hearts.

AYT
IST
Good 6.0

Cons: Delayed flight 1 hour

IST
AMS
Good 6.0

Pros: Courteous and helpful crew

Cons: My seat was broken. Entertainment system was non responsige and expressly slow. Couldn’t hear anything from the earphones.

IST
ORD
Excellent 8.3

Pros: Entertainment options were excellent. A lot to choose from. Provided small travel bag for the flight. Airplane was clean They offered for the first drink a homemade lemon with fresh mint which was wonderful. Will definitely fly them again. Great price

Cons: Low sodium meal was not tasty. Could not finish it due to lack texture.

IST
SFO
Good 7.0

Pros: Good movie selections

Cons: Food wasn't as good as usual on Turkish flights.

Tue, Apr 9
PWM
Portland
LHR
London Heathrow
20h 25m
Tue, Apr 23
LHR
London Heathrow
PWM
Portland
18h 43m
Trip: 15 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 1,289 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
SFO
LHR
Excellent 10.0

Pros: Food was delicious, consistent timely service and excellent entertainment options onboard. The flight was an hour early!

MEL
LAX
Good 7.3

Pros: Everything was good in this flight

Cons: N/A

BNE
LAX
Excellent 10.0

Pros: Food was great. Friendly stas staff.

Cons: LAX AIRPORT signage leaves something to be desired. Nothing to do with airline.

LAX
MEL
Excellent 10.0

Pros: Everything (with the exception of the subject below), thank you. One thing that really surprised me, though, is how much I liked the eggs (on both flights) and what went with the eggs, like the spinach and potatoes and bacon on this flight and the potatoes and sausage (and was there something else?) on the next flight. Kudos for making something that has got to be cheap taste good. Thanks.

Cons: Come to think of it, there was one thing that I didn't particularly like, and that was how the headphones only worked on one side only (there was only audio on one side). At first I thought that maybe I had just gotten bad headphones, but the my next flight was the same: the headphones also only played audio on one side.

LHR
LAX
Excellent 8.0

Pros: - Presence of entire box sets of some TV shows was a nice touch that I made good use of.

Cons: - EVERY damn movie is prefaced by 4 minutes of ads. - The touchscreens (at least in economy) are slow resistive screens that are horrible for fine control gestures (like slightly changing the volume or position)

Sat, Feb 9
PWM
Portland
LHR
London Heathrow
12h 51m
Sat, Feb 16
LHR
London Heathrow
PWM
Portland
11h 11m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,422 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
CDG
ATL
Good 6.3

Pros: Food quality was above average (compared to Air France, for instance). On-board entertainment system offers a lot of movies or tv series, assuming it is in working order.

Cons: A negative point for the entertainment system is the variety of movies - all US based movies. Other airlines mix in foreign movies, Delta is squarely US centric. Also, the entertainment system didn't properly work until rebooted, but flight attendants could not be contacted to get this done timely (cannot call attendants through a non-functional screen). Another concern is the noise level of the cabin, but it's mostly due to passengers.

MCO
CVG
Excellent 8.6

Pros: Cincinnati airport was clean and efficient

Cons: MCO airport gate was a mess and did not have easy access to charge phones.

ATL
SFO
Good 6.4

Pros: Better than average entertainment system for domestic flights.

Cons: Boarding done against logic: my seat was in the last 5 rows of the cabin and I was scheduled to board in the final group. When I got to my seat the first 30 rows were nearly fully, but the back of the plane was half empty. The whole time the gate agent was urging passengers to move faster through the aisle, but Delta should really rethink its boarding strategy. It shouldn't take 40 minutes to board a 757.

BUF
LGA
Excellent 9.3

Pros: Excellent flight with efficient service. Flight was on time and friendly staff

Cons: Efficiency

JFK
SEA
Excellent 10.0

Pros: Boarded and left JFK on time and arrived 15 minutes early to Seattle. Love DELTA.

Wed, Nov 21
PWM
Portland
LHR
London Heathrow
11h 59m
Mon, Nov 26
LHR
London Heathrow
PWM
Portland
11h 08m
$1108
Trip: 6 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,422 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
DTW
ATL
Okay 5.3

Pros: Delta flights are usually on time and the staff is always polite and helpful

Cons: Both my departure and arrival flight were delayed and I was not please with delay.

CDG
ATL
Good 6.3

Pros: Food quality was above average (compared to Air France, for instance). On-board entertainment system offers a lot of movies or tv series, assuming it is in working order.

Cons: A negative point for the entertainment system is the variety of movies - all US based movies. Other airlines mix in foreign movies, Delta is squarely US centric. Also, the entertainment system didn't properly work until rebooted, but flight attendants could not be contacted to get this done timely (cannot call attendants through a non-functional screen). Another concern is the noise level of the cabin, but it's mostly due to passengers.

SEA
BOI
Good 6.6

Cons: 20 minutes late

TYS
ATL
Mediocre 2.0

Cons: Sat on the tarmac for 20 Minutes, after taking off late. Arrived to my connecting gate 10 Minutes prior to scheduled departure with no delta attendants in sight and watched my plane sit at the gate and pull away with no way to get on board. Now I’m waiting unnecessarily for 4 hours on another flight.

SAN
LAX
Good 7.3

Pros: Delta was OK

Cons: Lack of attention by the fly stuard in Virgin Australia Virgin had a 45´delay

Sat, May 25
PWM
Portland
LHR
London Heathrow
9h 10m
Tue, May 28
LHR
London Heathrow
PWM
Portland
14h 50m
$1197
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,422 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
DTW
ATL
Okay 5.3

Pros: Delta flights are usually on time and the staff is always polite and helpful

Cons: Both my departure and arrival flight were delayed and I was not please with delay.

SAN
LAX
Good 7.3

Pros: Delta was OK

Cons: Lack of attention by the fly stuard in Virgin Australia Virgin had a 45´delay

TYS
ATL
Mediocre 2.0

Cons: Sat on the tarmac for 20 Minutes, after taking off late. Arrived to my connecting gate 10 Minutes prior to scheduled departure with no delta attendants in sight and watched my plane sit at the gate and pull away with no way to get on board. Now I’m waiting unnecessarily for 4 hours on another flight.

JFK
SEA
Excellent 10.0

Pros: Boarded and left JFK on time and arrived 15 minutes early to Seattle. Love DELTA.

SMF
MSP
Excellent 10.0

Pros: Everything

Cons: Nothing

Wed, Nov 14
BGR
Bangor
LHR
London Heathrow
12h 35m
Wed, Nov 21
LHR
London Heathrow
BGR
Bangor
15h 35m
$3824
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 60,493 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
IAD
DAY
Good 6.0

Cons: Delayed multiple times

EWR
ZRH
Excellent 9.6

Cons: delayed

PNS
ORD
Excellent 8.0

Pros: Smaller plane was awesome. Flight service great. Checkin easy.

Cons: We are okay with seat area but would ask that united freeze seat backs. The inconsiderate bumpkins in front of us put seat back and then leaned forward the whole flight. we could not even put our tray table all the way down. Coke spilled all over us in turbulence as liose tabke bounced significantly more than if set in place. Give people rude, freeze saet so cant recline or remove tray tables so we dont hurt ourselves due to rude people.

IAH
NRT
Excellent 10.0

Pros: Everything

FLL
IAH
Mediocre 2.0

Pros: Nothing

Cons: It’s a united flight so any expectation of being treated like a customer that actually pays for a ticket is a bridge too far.

Thu, Dec 20
PWM
Portland
LCY
London City
26h 42m
Sat, Jan 5
LCY
London City
PWM
Portland
19h 00m
$4022
Trip: 17 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 4,112 reviews
Overall
7.4
Boarding
7.3
Comfort
7.2
Crew
7.9
Entertainment
6.6
Food
7.0
BOS
LIS
Okay 4.6

Cons: Very warm in cabin, no means of controlling air flow. Seat space very cramped. Very tall person next to me in my space

BCN
LIS
Okay 4.8

Pros: Planes clean and in good condition.

Cons: Crowded and late departure.

MIA
LIS
Good 6.3

Pros: Service was good and the food was better than average.

Cons: Paying extra for business class so you can sleep just isn't worth it with TAP. We had an older plane, showing its age, and the seats did not go completely flat. So, I kept slipping down and my feet jammed into the seat in front of me.

FCO
LIS
Good 6.6

Cons: No entertainment, either video or audio.

FRA
LIS
Excellent 9.3

Pros: Food

Cons: N/a

Thu, Apr 25
PWM
Portland
LHR
London Heathrow
14h 12m
Tue, Apr 30
LHR
London Heathrow
PWM
Portland
11h 08m
$1451
Trip: 6 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,422 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
SEA
BOI
Good 6.6

Cons: 20 minutes late

MCO
CVG
Excellent 8.6

Pros: Cincinnati airport was clean and efficient

Cons: MCO airport gate was a mess and did not have easy access to charge phones.

MSP
MCO
Excellent 8.6

Pros: Almost everything

Cons: Could not get entertainment interface with my tablet to work, especially since I paid extra to do so. Could not access live TV on my seat/chair screen.

JFK
SEA
Excellent 10.0

Pros: Boarded and left JFK on time and arrived 15 minutes early to Seattle. Love DELTA.

CDG
ATL
Good 6.3

Pros: Food quality was above average (compared to Air France, for instance). On-board entertainment system offers a lot of movies or tv series, assuming it is in working order.

Cons: A negative point for the entertainment system is the variety of movies - all US based movies. Other airlines mix in foreign movies, Delta is squarely US centric. Also, the entertainment system didn't properly work until rebooted, but flight attendants could not be contacted to get this done timely (cannot call attendants through a non-functional screen). Another concern is the noise level of the cabin, but it's mostly due to passengers.

Sun, Jan 13
PWM
Portland
LHR
London Heathrow
12h 51m
Fri, Jan 18
LHR
London Heathrow
PWM
Portland
14h 48m
$2948
Trip: 6 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,422 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
CDG
ATL
Good 6.3

Pros: Food quality was above average (compared to Air France, for instance). On-board entertainment system offers a lot of movies or tv series, assuming it is in working order.

Cons: A negative point for the entertainment system is the variety of movies - all US based movies. Other airlines mix in foreign movies, Delta is squarely US centric. Also, the entertainment system didn't properly work until rebooted, but flight attendants could not be contacted to get this done timely (cannot call attendants through a non-functional screen). Another concern is the noise level of the cabin, but it's mostly due to passengers.

SEA
BOI
Good 6.6

Cons: 20 minutes late

BUF
LGA
Excellent 9.3

Pros: Excellent flight with efficient service. Flight was on time and friendly staff

Cons: Efficiency

SMF
MSP
Excellent 10.0

Pros: Everything

Cons: Nothing

ATL
SFO
Good 6.0

Pros: Transfer f from first flight leg

Cons: Food and the 757 lay out

*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.