Find Cheap Flights from Seattle to London Heathrow (03A - LHR)

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Thu 12/14
Thu 12/21
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Book cheap flights from Seattle to London Heathrow (round-trip)

Airports
Origin
Seattle
$627
only
$627
Destination
London
$627
only
$627
Mon, Feb 19
SEA
LHR
12h 00m
Tue, Feb 27
LHR
SEA
28h 25m
Trip: 9 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
KEF
ORD
Mediocre 2.0

same as above

same as above

KEF
TXL
Okay 4.0

Crew members were courteous

Good evening, I’m not sure under which category our complaints should fall on your website so I will include them here. To summarize our complaint, we booked our tickets on Icelandair through Kayak (and Webjet) and upon arriving at the check-in counter on December 2, we were informed that the baggage fee for our flight would be $95 each! Understandably, we were shocked and very displeased. Nowhere in our confirmation emails or flight details was there anything about having to pay such a high rate for our luggage. The first employee we spoke to said that your airline has recently started charging such fees to compete with WOW Air and as I said to him, I would like to point out again that this is the very reason why I never choose to fly with WOW Air: they clearly state that there is a high baggage fee from the beginning of the registration process and I know of too many other airlines who don’t have such inflated fees. This ticketing agent and the manager said that the level of our ticket (apparently called Economy Light) indicated that we would be charged this baggage rate. It is now my understanding that on the Icelandair’s website, these levels are described but no such options were listed or explained on the Kayak website or any of our confirmation materials/emails. It is the responsibility of your site to post these important details in a conspicuous place so that travelers can make informed decisions. We could’ve flown with Air Portugal for a mere $50 more and saved not only over $200 each but also the inconvenience and frustration. Upon the check-in manager’s suggestion, I looked up our flight by the booking reservation number (LCWNEG) and again, the only “flight type” shown was called Economy, nothing more. The same is true for when we checked in online and reserved our seats - there was never an indication of the fees that were awaiting us. All this to say, we were incredibly upset to be surprised with an additional cost of $200/person (round trip ticket) but then, to add insult to injury, not only did we nearly miss our flight due to the length of time spent at the check-in desk, once we got on the plane and we realized we would not be served anything other than water or soda - since all food/meals must also be paid for in most Economy levels. This was our first experience with your airline/website and I highly doubt we will ever choose you in the future. I know now for a fact that other passengers who have booked through 3rd party sites have found themselves in similar bad situations. If you choose to work with airlines and offer lower rates, it is only honest and fair to make your policies clearly known to your potential customers. We felt mislead and deceived as these rates seemed hidden until it as too late. I eagerly await your response and look forward to hearing what steps will be taken to rectify the problem and make amends for this unacceptable situation. Sincerely, Mandi Vermilyea and Judith Arp

KEF
ZRH
Mediocre 2.0

Didn’t exist

KEF
MCO
Good 6.3

Wheelchair sbailanlr

No good food n not free

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...

Mon, Jan 15
SEA
LHR
41h 08m
Tue, Jan 23
LHR
SEA
25h 52m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 21
SEA
LHR
19h 20m
Tue, Apr 10
LHR
SEA
11h 44m
Trip: 21 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Feb 9
SEA
LHR
13h 00m
Sun, Feb 11
LHR
SEA
12h 50m
Trip: 3 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
SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

AMS
PRG
Excellent 10.0

Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight.

Nothing!

JFK
AMS
Good 7.6

Two hours delay in the start.

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.

Thu, Feb 22
SEA
LHR
12h 00m
Fri, Mar 2
LHR
SEA
12h 35m
Trip: 9 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
KEF
MSP
Mediocre 2.0

Nothing

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

KEF
TXL
Okay 4.0

Crew members were courteous

Good evening, I’m not sure under which category our complaints should fall on your website so I will include them here. To summarize our complaint, we booked our tickets on Icelandair through Kayak (and Webjet) and upon arriving at the check-in counter on December 2, we were informed that the baggage fee for our flight would be $95 each! Understandably, we were shocked and very displeased. Nowhere in our confirmation emails or flight details was there anything about having to pay such a high rate for our luggage. The first employee we spoke to said that your airline has recently started charging such fees to compete with WOW Air and as I said to him, I would like to point out again that this is the very reason why I never choose to fly with WOW Air: they clearly state that there is a high baggage fee from the beginning of the registration process and I know of too many other airlines who don’t have such inflated fees. This ticketing agent and the manager said that the level of our ticket (apparently called Economy Light) indicated that we would be charged this baggage rate. It is now my understanding that on the Icelandair’s website, these levels are described but no such options were listed or explained on the Kayak website or any of our confirmation materials/emails. It is the responsibility of your site to post these important details in a conspicuous place so that travelers can make informed decisions. We could’ve flown with Air Portugal for a mere $50 more and saved not only over $200 each but also the inconvenience and frustration. Upon the check-in manager’s suggestion, I looked up our flight by the booking reservation number (LCWNEG) and again, the only “flight type” shown was called Economy, nothing more. The same is true for when we checked in online and reserved our seats - there was never an indication of the fees that were awaiting us. All this to say, we were incredibly upset to be surprised with an additional cost of $200/person (round trip ticket) but then, to add insult to injury, not only did we nearly miss our flight due to the length of time spent at the check-in desk, once we got on the plane and we realized we would not be served anything other than water or soda - since all food/meals must also be paid for in most Economy levels. This was our first experience with your airline/website and I highly doubt we will ever choose you in the future. I know now for a fact that other passengers who have booked through 3rd party sites have found themselves in similar bad situations. If you choose to work with airlines and offer lower rates, it is only honest and fair to make your policies clearly known to your potential customers. We felt mislead and deceived as these rates seemed hidden until it as too late. I eagerly await your response and look forward to hearing what steps will be taken to rectify the problem and make amends for this unacceptable situation. Sincerely, Mandi Vermilyea and Judith Arp

KEF
ORD
Mediocre 2.0

same as above

same as above

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.

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...

Thu, Jan 25
SEA
LHR
12h 00m
Tue, Jan 30
LHR
SEA
25h 52m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Apr 28
SEA
LHR
13h 00m
Sun, May 6
LHR
SEA
12h 21m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jan 15
SEA
LHR
12h 00m
Fri, Jan 26
LHR
SEA
12h 35m
Trip: 12 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
AMS
KEF
Mediocre 2.0

I didn't like anything...not enough connecting time , the flights are consistently late making for 20 minute connections with passport control...with my 91 yr old mother running the airport...i will NEVER take this carrier again!!!

nothing..plus you have to pay for everything food etc..

KEF
ORD
Mediocre 2.0

same as above

same as above

EWR
KEF
Okay 4.0

The flight crew was kind.

Good evening, I’m not sure under which category our complaints should fall on your website so I will include them here. To summarize our complaint, we booked our tickets on Icelandair through Kayak (and Webjet) and upon arriving at the check-in counter on December 2, we were informed that the baggage fee for our flight would be $95 each! Understandably, we were shocked and very displeased. Nowhere in our confirmation emails or flight details was there anything about having to pay such a high rate for our luggage. The first employee we spoke to said that your airline has recently started charging such fees to compete with WOW Air and as I said to him, I would like to point out again that this is the very reason why I never choose to fly with WOW Air: they clearly state that there is a high baggage fee from the beginning of the registration process and I know of too many other airlines who don’t have such inflated fees. This ticketing agent and the manager said that the level of our ticket (apparently called Economy Light) indicated that we would be charged this baggage rate. It is now my understanding that on the Icelandair’s website, these levels are described but no such options were listed or explained on the Kayak website or any of our confirmation materials/emails. It is the responsibility of your site to post these important details in a conspicuous place so that travelers can make informed decisions. We could’ve flown with Air Portugal for a mere $50 more and saved not only over $200 each but also the inconvenience and frustration. Upon the check-in manager’s suggestion, I looked up our flight by the booking reservation number (LCWNEG) and again, the only “flight type” shown was called Economy, nothing more. The same is true for when we checked in online and reserved our seats - there was never an indication of the fees that were awaiting us. All this to say, we were incredibly upset to be surprised with an additional cost of $200/person (round trip ticket) but then, to add insult to injury, not only did we nearly miss our flight due to the length of time spent at the check-in desk, once we got on the plane and we realized we would not be served anything other than water or soda - since all food/meals must also be paid for in most Economy levels. This was our first experience with your airline/website and I highly doubt we will ever choose you in the future. I know now for a fact that other passengers who have booked through 3rd party sites have found themselves in similar bad situations. If you choose to work with airlines and offer lower rates, it is only honest and fair to make your policies clearly known to your potential customers. We felt mislead and deceived as these rates seemed hidden until it as too late. I eagerly await your response and look forward to hearing what steps will be taken to rectify the problem and make amends for this unacceptable situation. Sincerely, Mandi Vermilyea and Judith Arp

KEF
ZRH
Mediocre 2.0

Didn’t exist

KEF
MCO
Good 6.3

Wheelchair sbailanlr

No good food n not free

Sat, Jan 20
SEA
LHR
27h 00m
Sat, Jan 27
LHR
SEA
26h 17m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Mar 17
SEA
LHR
20h 00m
Sun, Mar 25
LHR
SEA
21h 15m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 16
SEA
LHR
20h 20m
Fri, Feb 2
LHR
SEA
28h 25m
Trip: 18 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
KEF
MCO
Good 6.3

Wheelchair sbailanlr

No good food n not free

EWR
KEF
Okay 4.0

The flight crew was kind.

Good evening, I’m not sure under which category our complaints should fall on your website so I will include them here. To summarize our complaint, we booked our tickets on Icelandair through Kayak (and Webjet) and upon arriving at the check-in counter on December 2, we were informed that the baggage fee for our flight would be $95 each! Understandably, we were shocked and very displeased. Nowhere in our confirmation emails or flight details was there anything about having to pay such a high rate for our luggage. The first employee we spoke to said that your airline has recently started charging such fees to compete with WOW Air and as I said to him, I would like to point out again that this is the very reason why I never choose to fly with WOW Air: they clearly state that there is a high baggage fee from the beginning of the registration process and I know of too many other airlines who don’t have such inflated fees. This ticketing agent and the manager said that the level of our ticket (apparently called Economy Light) indicated that we would be charged this baggage rate. It is now my understanding that on the Icelandair’s website, these levels are described but no such options were listed or explained on the Kayak website or any of our confirmation materials/emails. It is the responsibility of your site to post these important details in a conspicuous place so that travelers can make informed decisions. We could’ve flown with Air Portugal for a mere $50 more and saved not only over $200 each but also the inconvenience and frustration. Upon the check-in manager’s suggestion, I looked up our flight by the booking reservation number (LCWNEG) and again, the only “flight type” shown was called Economy, nothing more. The same is true for when we checked in online and reserved our seats - there was never an indication of the fees that were awaiting us. All this to say, we were incredibly upset to be surprised with an additional cost of $200/person (round trip ticket) but then, to add insult to injury, not only did we nearly miss our flight due to the length of time spent at the check-in desk, once we got on the plane and we realized we would not be served anything other than water or soda - since all food/meals must also be paid for in most Economy levels. This was our first experience with your airline/website and I highly doubt we will ever choose you in the future. I know now for a fact that other passengers who have booked through 3rd party sites have found themselves in similar bad situations. If you choose to work with airlines and offer lower rates, it is only honest and fair to make your policies clearly known to your potential customers. We felt mislead and deceived as these rates seemed hidden until it as too late. I eagerly await your response and look forward to hearing what steps will be taken to rectify the problem and make amends for this unacceptable situation. Sincerely, Mandi Vermilyea and Judith Arp

KEF
ZRH
Mediocre 2.0

Didn’t exist

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...

AMS
KEF
Mediocre 2.0

I didn't like anything...not enough connecting time , the flights are consistently late making for 20 minute connections with passport control...with my 91 yr old mother running the airport...i will NEVER take this carrier again!!!

nothing..plus you have to pay for everything food etc..

Tue, Jan 23
SEA
LHR
26h 25m
Sat, Jan 27
LHR
SEA
26h 17m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jan 20
SEA
LHR
12h 00m
Sat, Feb 3
LHR
SEA
12h 35m
Trip: 15 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
AMS
KEF
Mediocre 2.0

I didn't like anything...not enough connecting time , the flights are consistently late making for 20 minute connections with passport control...with my 91 yr old mother running the airport...i will NEVER take this carrier again!!!

nothing..plus you have to pay for everything food etc..

EWR
KEF
Mediocre 2.0

Nothing

We had an 8 hour delay and only learned of the delay when we arrived at the airport.

KEF
MSP
Mediocre 2.0

Nothing

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

MSP
KEF
Excellent 10.0

Crew was very professional

KEF
ORD
Mediocre 2.0

same as above

same as above

Thu, Jan 25
SEA
LHR
12h 00m
Sat, Jan 27
LHR
SEA
26h 17m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jan 22
SEA
LHR
12h 00m
Sun, Jan 28
LHR
SEA
28h 25m
Trip: 7 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
KEF
ZRH
Mediocre 2.0

Didn’t exist

KEF
MCO
Good 6.3

Wheelchair sbailanlr

No good food n not free

KEF
TXL
Okay 4.0

Crew members were courteous

Good evening, I’m not sure under which category our complaints should fall on your website so I will include them here. To summarize our complaint, we booked our tickets on Icelandair through Kayak (and Webjet) and upon arriving at the check-in counter on December 2, we were informed that the baggage fee for our flight would be $95 each! Understandably, we were shocked and very displeased. Nowhere in our confirmation emails or flight details was there anything about having to pay such a high rate for our luggage. The first employee we spoke to said that your airline has recently started charging such fees to compete with WOW Air and as I said to him, I would like to point out again that this is the very reason why I never choose to fly with WOW Air: they clearly state that there is a high baggage fee from the beginning of the registration process and I know of too many other airlines who don’t have such inflated fees. This ticketing agent and the manager said that the level of our ticket (apparently called Economy Light) indicated that we would be charged this baggage rate. It is now my understanding that on the Icelandair’s website, these levels are described but no such options were listed or explained on the Kayak website or any of our confirmation materials/emails. It is the responsibility of your site to post these important details in a conspicuous place so that travelers can make informed decisions. We could’ve flown with Air Portugal for a mere $50 more and saved not only over $200 each but also the inconvenience and frustration. Upon the check-in manager’s suggestion, I looked up our flight by the booking reservation number (LCWNEG) and again, the only “flight type” shown was called Economy, nothing more. The same is true for when we checked in online and reserved our seats - there was never an indication of the fees that were awaiting us. All this to say, we were incredibly upset to be surprised with an additional cost of $200/person (round trip ticket) but then, to add insult to injury, not only did we nearly miss our flight due to the length of time spent at the check-in desk, once we got on the plane and we realized we would not be served anything other than water or soda - since all food/meals must also be paid for in most Economy levels. This was our first experience with your airline/website and I highly doubt we will ever choose you in the future. I know now for a fact that other passengers who have booked through 3rd party sites have found themselves in similar bad situations. If you choose to work with airlines and offer lower rates, it is only honest and fair to make your policies clearly known to your potential customers. We felt mislead and deceived as these rates seemed hidden until it as too late. I eagerly await your response and look forward to hearing what steps will be taken to rectify the problem and make amends for this unacceptable situation. Sincerely, Mandi Vermilyea and Judith Arp

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.

AMS
KEF
Mediocre 2.0

I didn't like anything...not enough connecting time , the flights are consistently late making for 20 minute connections with passport control...with my 91 yr old mother running the airport...i will NEVER take this carrier again!!!

nothing..plus you have to pay for everything food etc..

Mon, Jan 15
SEA
LHR
41h 08m
Sat, Jan 20
LHR
SEA
26h 17m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 23
SEA
LHR
12h 00m
Mon, Jan 29
LHR
SEA
28h 25m
Trip: 7 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
KEF
MSP
Mediocre 2.0

Nothing

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

KEF
ORD
Mediocre 2.0

same as above

same as above

KEF
ZRH
Mediocre 2.0

Didn’t exist

AMS
KEF
Mediocre 2.0

I didn't like anything...not enough connecting time , the flights are consistently late making for 20 minute connections with passport control...with my 91 yr old mother running the airport...i will NEVER take this carrier again!!!

nothing..plus you have to pay for everything food etc..

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...

Tue, Jan 23
SEA
LHR
12h 00m
Sat, Feb 3
LHR
SEA
26h 17m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jan 24
SEA
LHR
12h 00m
Mon, Feb 5
LHR
SEA
12h 35m
Trip: 13 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
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
MCO
Good 6.3

Wheelchair sbailanlr

No good food n not free

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.

EWR
KEF
Mediocre 2.0

Nothing

We had an 8 hour delay and only learned of the delay when we arrived at the airport.

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...

Sun, Feb 11
SEA
LHR
22h 18m
Sat, Feb 17
LHR
SEA
26h 22m
Trip: 7 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.