Find Cheap Flights from Seattle/Tacoma Intl to London Heathrow (SEA - LHR)

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Good to Know

Low Season:
April
Best time to beat the crowds
4%
expected price decrease
High Season:
June
Most popular time to fly
23%
expected price increase
Average price:
C$ 1319
(avg. price over the last 2 weeks)
Good Deal:
C$ 1010
or less (round trip)

When to Book Flights from Seattle/Tacoma Intl to London Heathrow

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

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for C$ 1010 or less.
The cheapest flight from Seattle/Tacoma Intl to London Heathrow was found, on average, 83 days before departure.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be May, June and July. The cheapest month to fly is April.
Morning departure is around 19% cheaper 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 Seattle/Tacoma Intl to London Heathrow Flights

How long does a flight from Seattle/Tacoma Intl to London Heathrow take?
An average nonstop flight takes 9h 25m, covering a distance of 7702 km.
How many flights are there between Seattle/Tacoma Intl and London Heathrow?
There are 242 (nonstop) flights between Seattle/Tacoma Intl and London Heathrow per week, averaging 32 per day.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to London Heathrow?
In the past 3 days, the cheapest round-trip tickets were found on Icelandair (C$ 714), Virgin Atlantic (C$ 814) and KLM (C$ 847).
Do I need a passport to fly between Seattle/Tacoma Intl and London Heathrow?
Yes.
Which airlines fly most frequently between Seattle/Tacoma Intl and London Heathrow?
American Airlines (4 times daily), Aer Lingus (4 times daily), Finnair (4 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly from Seattle/Tacoma Intl to London Heathrow?
For Seattle/Tacoma Intl to London Heathrow, Monday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from London Heathrow back to Seattle/Tacoma Intl, the best deals are generally found on Sunday, with Monday being the most expensive.

Book cheap flights from Seattle/Tacoma Intl to London Heathrow (round-trip)

Airports
Origin
Seattle
C$ 714
only
C$ 714
Destination
London
C$ 714
only
C$ 714
Mon, 23 Apr
SEA
LHR
11h 45m
Wed, 9 May
LHR
SEA
13h 30m
C$ 714
Trip: 17 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6711 reviews
Overall
7.6
Boarding
7.3
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.3
KEF
BOS
Excellent 8.6

Crew was friendly, like the bigger plane and direct flight.

Luggage fees!!!

ORD
KEF
Good 7.3

Friendly staff Good entertainment options USB at every seat

Food options very expensive

SEA
KEF
Excellent 8.0

Blankets and pillows at each seat

Only one drink service on a very long flight. very expensive food choices.

BOS
KEF
Good 7.6

They provided a pillow and blanket which was very nice, and the crew were helpful in finding space for items during take-off and landing. The boarding and exiting were fairly quick.

Everything on board costs extra, including basic drinks and snacks, but that's to be expected on cheaper flights. I assumed that the inflight movies cost money as well, although I didn't watch any because I didn't have headphones.

BRU
KEF
Excellent 10.0

My exit aisle seat was just great, with no one on either side of me !!!!! Very kind airplane staff. I had a great sleep.

nothing

Wed, 29 Aug
SEA
LHR
9h 25m
Mon, 10 Sep
LHR
SEA
9h 40m
C$ 814
Trip: 13 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
LAX
LHR
Good 7.6

Overall comfortable journey

No option to book food option 24 hours before as could check in could not been done earlier than 24 hours before flight. I logged exactly 24 hrs before filled in details which took a few minutes by that time said too late to book special meal.

LAX
MEL
Excellent 10.0

Talk about an awesome experience. I loved the friendly staff and the accommodations were superb. I could ask for no better. Even the food was excellent.

I have nothing but praise.

SEA
LHR
Good 6.3

Plane was new or newly appointed interior. Bin space very adequate. Lavatory larger than usual. Crew was friendly. Dinner choices good and quality better than norm in American carriers.

Snack and breakfast were odd, centered somewhat on dairy products (annoying if lactose intolerant).

BNE
LAX
Good 7.6

For oversea traveling, food could and should be better. For our flight from AKL to BNE, we had to pay for our soft drink!!!

CHC
MEL
Mediocre 2.0

You charged me for a checked bag. This wasn't made clear when I booked the flight.

Wed, 21 Mar
SEA
LHR
14h 03m
Wed, 28 Mar
LHR
SEA
22h 40m
C$ 847
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1756 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
IAD
AMS
Mediocre 2.0

They stole my money

MAN
AMS
Good 7.0

The cabin crew were good. They explained what the arrangements were for the delayed flight connections

The plane wasn't refueled and so was not ready for take off once the passengers were loaded. The plane had a technical problem when it tried the first take off and so it had to be abandoned. This was alarming..

LAX
AMS
Mediocre 2.0

My bagage broke

I paid extra fee for extra bagage which was tv and i paid insurance my tv broke and no one responces for it

ARN
AMS
Excellent 10.0

Helpful and smiling cabin crew.

AMS
BLL
Good 6.5

Nice seats, comfortable.

Again, no aisle seat for SkyTeam Gold member. Also, my baggage was lost. First bag arrived a day late, second after I had left Billund and it was six days before the bag with my clothes reached me. I was told I will have 100 euro credit for clothing, but in the winter and for 6 days, this was not even close to the amount I needed for clothing and necessities, to have my time here.

Fri, 13 Apr
SEA
LHR
18h 50m
Sun, 29 Apr
LHR
SEA
36h 04m
C$ 875
Trip: 17 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18874 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
FRA
YVR
Good 6.0

Food is provided

Delayed 6 hours on the plane

CDG
FRA
Mediocre 3.3

Flight was delayed twice. 3 hour trip took 15 hours.

FRA
SFO
Good 7.0

See above. The same applies.

See above. The same applies.

BEY
FRA
Good 7.0

Seating, cleanliness, crew courteousy, entertainment.

Boarding process unclear, poor announcement, and messy. No wifi, choice and quality of food. Entertainment was erratic at times.

FRA
SFO
Good 6.6

delayed boarding then waited three hours after we boarded for deicing. The piolet and crew did not update us. Made the flight very long.

Sun, 25 Mar
SEA
LHR
17h 10m
Wed, 11 Apr
LHR
SEA
21h 10m
C$ 883
Trip: 18 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 4 Jun
SEA
LHR
15h 00m
Sun, 10 Jun
LHR
SEA
14h 45m
C$ 922
Trip: 7 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 4256 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.9
DUB
GVA
Excellent 10.0

Space for legs unlike ryanair

YYZ
DUB
Excellent 8.3

I flew overnight from Toronto, Canada to Dublin and had a relatively pleasant experience. The food and drink trolleys came by quite quickly and frequently, and the food exceeded my expectations. The crew was friendly, for the most part. Boarding certainly could've been smoother... But overall, I'd fly Aer Lingus again for an overseas trip.

DUB
NCL
Good 7.0

Crew were great

Delayed Dublin to Newcastle flight

YYZ
DUB
Mediocre 2.0

Being charged $100 each way for checked baggage, no where on my itenerary did it mention that

SNN
LHR
Excellent 8.3

Nice seats food was decent crew excellent

Not enough room

Thu, 12 Jul
SEA
LHR
14h 50m
Wed, 22 Aug
LHR
SEA
18h 49m
C$ 963
Trip: 42 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 9 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
SEA
LHR
Mediocre 2.0

Experienced very rude cabin crew

SEA
LHR
Good 7.6

Nice dinner, drinks, and snack services

Could be a little friendlier. Lights on the whole time during a red eye was pretty annoying. Don't know if this was on purpose or a malfunction. Entertainment system was hard to see and a little outdated.

HEL
TXL
Okay 5.6

my luggage was misplaced and I didnt have it for 3 days.

SEA
LHR
Okay 5.6

No leg room

SEA
LHR
Excellent 10.0

the price was very good

Fri, 4 May
SEA
LHR
12h 40m
Wed, 9 May
LHR
SEA
13h 30m
C$ 721
Trip: 6 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6711 reviews
Overall
7.6
Boarding
7.3
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.3
KEF
EWR
Mediocre 2.8

My entertainment system stopped working 1/2 way through the flight and there was very little leg room that caused back pain

DEN
KEF
Excellent 8.0

Surprised by very large bag fees, reservation was unclear about baggage allowance and charges.

BRU
KEF
Excellent 8.0

Everything went okay for us on this flight. In the future, I will suggest to my wife, who books air travel for us to read the fine print. The cost to check a bag was $100.00 which would have run us $300.00 for the trip: Boston to Brussels with a layover in Reykjavik, but on the return Brussels to Reykjavik with four days in Iceland and the return to Boston, so there goes the cheap flight! I did enjoy the in-flight movie and a documentary on the return trip as well.

My own earphones on the flight from Brussels to Iceland did not work. I could not plug them into the system.

KEF
BOS
Excellent 8.6

Crew was friendly, like the bigger plane and direct flight.

Luggage fees!!!

SEA
KEF
Excellent 8.0

Blankets and pillows at each seat

Only one drink service on a very long flight. very expensive food choices.

Wed, 9 May
SEA
LHR
21h 05m
Wed, 16 May
LHR
SEA
13h 30m
C$ 721
Trip: 8 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6711 reviews
Overall
7.6
Boarding
7.3
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.3
KEF
OSL
Excellent 8.0

We were ahead of schedule, which was nice

SEA
KEF
Excellent 8.0

Blankets and pillows at each seat

Only one drink service on a very long flight. very expensive food choices.

DEN
KEF
Excellent 8.0

Surprised by very large bag fees, reservation was unclear about baggage allowance and charges.

ORD
KEF
Good 7.3

Friendly staff Good entertainment options USB at every seat

Food options very expensive

ORY
KEF
Okay 4.0

They were helpful and let me check my boulder pad as sports equipment for free on the flight to paris.

Tue, 3 Apr
SEA
LHR
9h 25m
Tue, 10 Apr
LHR
SEA
9h 40m
C$ 850
Trip: 8 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
BNE
POM
Okay 5.3

Plane was about 30% full so plenty of room to stretch out. Friendly crew.

Flight left 50 minutes late because they'd lost the paperwork and had to get new copies.... not very professional! I can understand a delay due to weather or technical issues but losing paperwork shouldn't happen. The food portion was very small for an international flight.

LAX
MEL
Excellent 10.0

Talk about an awesome experience. I loved the friendly staff and the accommodations were superb. I could ask for no better. Even the food was excellent.

I have nothing but praise.

SFO
LHR
Excellent 9.0

Virgin Atlantic continues to give great service. Their lounges are way above all other airline lounges. It is difficult to get well prepared and fresh fish in lounges, but Virgin Atlantic knows how to do it.

LAX
BNE
Good 7.0

I never expect airline food to be any good but I’m always hoping it’s edible. This was not the case, as the egg breakfast made me physically ill.

CHC
MEL
Mediocre 2.0

You charged me for a checked bag. This wasn't made clear when I booked the flight.

Wed, 4 Apr
SEA
LHR
9h 25m
Fri, 13 Apr
LHR
SEA
9h 40m
C$ 850
Trip: 10 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
LAX
BNE
Good 7.0

I never expect airline food to be any good but I’m always hoping it’s edible. This was not the case, as the egg breakfast made me physically ill.

BNE
POM
Okay 5.3

Plane was about 30% full so plenty of room to stretch out. Friendly crew.

Flight left 50 minutes late because they'd lost the paperwork and had to get new copies.... not very professional! I can understand a delay due to weather or technical issues but losing paperwork shouldn't happen. The food portion was very small for an international flight.

LAX
MEL
Excellent 10.0

Talk about an awesome experience. I loved the friendly staff and the accommodations were superb. I could ask for no better. Even the food was excellent.

I have nothing but praise.

SEA
LHR
Excellent 8.6

Reasonably comfortable for a long jet ride. Helpful and considerate flight attendants.

The strange windows that kept it looking like night out until 30 minutes before we landed. I prefer the natural light to help readjust my time zones.

BNE
LAX
Good 7.6

For oversea traveling, food could and should be better. For our flight from AKL to BNE, we had to pay for our soft drink!!!

Fri, 30 Mar
SEA
LHR
34h 50m
Sun, 8 Apr
LHR
SEA
26h 42m
C$ 954
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 4 Jun
SEA
LHR
9h 25m
Fri, 15 Jun
LHR
SEA
9h 40m
C$ 855
Trip: 12 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
SEA
LHR
Good 6.3

Plane was new or newly appointed interior. Bin space very adequate. Lavatory larger than usual. Crew was friendly. Dinner choices good and quality better than norm in American carriers.

Snack and breakfast were odd, centered somewhat on dairy products (annoying if lactose intolerant).

LAX
MEL
Excellent 10.0

Talk about an awesome experience. I loved the friendly staff and the accommodations were superb. I could ask for no better. Even the food was excellent.

I have nothing but praise.

BNE
LAX
Excellent 10.0

I loved how the airline crew were very accommodating. This was an awesome experience. A+++

I have no complaints.

CHC
MEL
Mediocre 2.0

You charged me for a checked bag. This wasn't made clear when I booked the flight.

SFO
LHR
Excellent 9.0

Virgin Atlantic continues to give great service. Their lounges are way above all other airline lounges. It is difficult to get well prepared and fresh fish in lounges, but Virgin Atlantic knows how to do it.

Wed, 27 Jun
SEA
LHR
11h 45m
Thu, 12 Jul
LHR
SEA
28h 25m
C$ 1070
Trip: 16 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 4256 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.9
BCN
DUB
Good 7.0

Crew nice. Space was better than most. Felt like Jet Blue.

No snack on 3 he flight ok I guess but....Lack of free beverage?

DUB
LHR
Excellent 8.0

Could not check in on-line from Dublin on either Air canada or Aer Linguis websites. Time to sort out this long-standing problem

DUB
NCL
Good 7.0

Crew were great

Delayed Dublin to Newcastle flight

SNN
LHR
Excellent 8.3

Nice seats food was decent crew excellent

Not enough room

DUB
GVA
Excellent 10.0

Space for legs unlike ryanair

Tue, 14 Aug
SEA
LHR
9h 25m
Tue, 4 Sep
LHR
SEA
9h 40m
C$ 855
Trip: 22 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
SEA
LHR
Excellent 8.6

Reasonably comfortable for a long jet ride. Helpful and considerate flight attendants.

The strange windows that kept it looking like night out until 30 minutes before we landed. I prefer the natural light to help readjust my time zones.

LAX
BNE
Good 7.0

I never expect airline food to be any good but I’m always hoping it’s edible. This was not the case, as the egg breakfast made me physically ill.

BNE
LAX
Excellent 10.0

I loved how the airline crew were very accommodating. This was an awesome experience. A+++

I have no complaints.

LAX
LHR
Good 7.6

Overall comfortable journey

No option to book food option 24 hours before as could check in could not been done earlier than 24 hours before flight. I logged exactly 24 hrs before filled in details which took a few minutes by that time said too late to book special meal.

LAX
MEL
Excellent 10.0

Talk about an awesome experience. I loved the friendly staff and the accommodations were superb. I could ask for no better. Even the food was excellent.

I have nothing but praise.

Wed, 1 Aug
SEA
LHR
14h 20m
Wed, 22 Aug
LHR
SEA
9h 40m
C$ 861
Trip: 22 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
BNE
LAX
Good 7.6

For oversea traveling, food could and should be better. For our flight from AKL to BNE, we had to pay for our soft drink!!!

LAX
BNE
Good 7.0

I never expect airline food to be any good but I’m always hoping it’s edible. This was not the case, as the egg breakfast made me physically ill.

MEL
AKL
Okay 4.6

Flight was an hour and a half late boarding, sat on the tarmac for 45 minutes, and there was no offer of complimentary beverages. Very barebones level of service.

LAX
MEL
Excellent 10.0

Talk about an awesome experience. I loved the friendly staff and the accommodations were superb. I could ask for no better. Even the food was excellent.

I have nothing but praise.

SFO
LHR
Excellent 9.0

Virgin Atlantic continues to give great service. Their lounges are way above all other airline lounges. It is difficult to get well prepared and fresh fish in lounges, but Virgin Atlantic knows how to do it.

Thu, 8 Mar
SEA
LHR
9h 30m
Thu, 15 Mar
LHR
SEA
9h 40m
C$ 870
Trip: 7 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
SEA
LHR
Excellent 8.0

Smooth flight

My economy window seat was just too cramped for a big guy on a nine hour flight

LAX
BNE
Good 7.0

I never expect airline food to be any good but I’m always hoping it’s edible. This was not the case, as the egg breakfast made me physically ill.

BNE
POM
Okay 5.3

Plane was about 30% full so plenty of room to stretch out. Friendly crew.

Flight left 50 minutes late because they'd lost the paperwork and had to get new copies.... not very professional! I can understand a delay due to weather or technical issues but losing paperwork shouldn't happen. The food portion was very small for an international flight.

SEA
LHR
Good 6.3

Plane was new or newly appointed interior. Bin space very adequate. Lavatory larger than usual. Crew was friendly. Dinner choices good and quality better than norm in American carriers.

Snack and breakfast were odd, centered somewhat on dairy products (annoying if lactose intolerant).

SEA
LHR
Excellent 8.6

Reasonably comfortable for a long jet ride. Helpful and considerate flight attendants.

The strange windows that kept it looking like night out until 30 minutes before we landed. I prefer the natural light to help readjust my time zones.

Mon, 26 Feb
SEA
LHR
12h 00m
Wed, 7 Mar
LHR
SEA
12h 35m
C$ 1292
Trip: 10 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6711 reviews
Overall
7.6
Boarding
7.3
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.3
KEF
EWR
Mediocre 2.8

My entertainment system stopped working 1/2 way through the flight and there was very little leg room that caused back pain

ORY
KEF
Okay 4.0

They were helpful and let me check my boulder pad as sports equipment for free on the flight to paris.

BRU
KEF
Excellent 10.0

My exit aisle seat was just great, with no one on either side of me !!!!! Very kind airplane staff. I had a great sleep.

nothing

KEF
OSL
Excellent 8.0

We were ahead of schedule, which was nice

BOS
KEF
Good 7.6

They provided a pillow and blanket which was very nice, and the crew were helpful in finding space for items during take-off and landing. The boarding and exiting were fairly quick.

Everything on board costs extra, including basic drinks and snacks, but that's to be expected on cheaper flights. I assumed that the inflight movies cost money as well, although I didn't watch any because I didn't have headphones.

Sun, 3 Jun
SEA
LHR
9h 25m
Sat, 16 Jun
LHR
SEA
9h 40m
C$ 884
Trip: 14 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
LAX
MEL
Excellent 10.0

Talk about an awesome experience. I loved the friendly staff and the accommodations were superb. I could ask for no better. Even the food was excellent.

I have nothing but praise.

BNE
POM
Okay 5.3

Plane was about 30% full so plenty of room to stretch out. Friendly crew.

Flight left 50 minutes late because they'd lost the paperwork and had to get new copies.... not very professional! I can understand a delay due to weather or technical issues but losing paperwork shouldn't happen. The food portion was very small for an international flight.

LAX
LHR
Good 7.6

Overall comfortable journey

No option to book food option 24 hours before as could check in could not been done earlier than 24 hours before flight. I logged exactly 24 hrs before filled in details which took a few minutes by that time said too late to book special meal.

SEA
LHR
Excellent 8.6

Reasonably comfortable for a long jet ride. Helpful and considerate flight attendants.

The strange windows that kept it looking like night out until 30 minutes before we landed. I prefer the natural light to help readjust my time zones.

BNE
LAX
Good 7.6

For oversea traveling, food could and should be better. For our flight from AKL to BNE, we had to pay for our soft drink!!!

Mon, 9 Jul
SEA
LHR
9h 25m
Thu, 9 Aug
LHR
SEA
9h 40m
C$ 887
Trip: 32 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
BNE
LAX
Good 7.6

For oversea traveling, food could and should be better. For our flight from AKL to BNE, we had to pay for our soft drink!!!

SEA
LHR
Good 6.3

Plane was new or newly appointed interior. Bin space very adequate. Lavatory larger than usual. Crew was friendly. Dinner choices good and quality better than norm in American carriers.

Snack and breakfast were odd, centered somewhat on dairy products (annoying if lactose intolerant).

LAX
LHR
Good 7.6

Overall comfortable journey

No option to book food option 24 hours before as could check in could not been done earlier than 24 hours before flight. I logged exactly 24 hrs before filled in details which took a few minutes by that time said too late to book special meal.

SFO
LHR
Excellent 9.0

Virgin Atlantic continues to give great service. Their lounges are way above all other airline lounges. It is difficult to get well prepared and fresh fish in lounges, but Virgin Atlantic knows how to do it.

SEA
LHR
Excellent 8.6

Reasonably comfortable for a long jet ride. Helpful and considerate flight attendants.

The strange windows that kept it looking like night out until 30 minutes before we landed. I prefer the natural light to help readjust my time zones.

Show more results

Seattle/Tacoma Intl to London Heathrow Flight Information

Avg. Flight Duration 9h 32m
Flights Arrive in London Heathrow
Flights Depart from Seattle/Tacoma Intl
Flight Price C$ 714
Distance 7702 km
Airlines Icelandair, Virgin Atlantic, KLM, Lufthansa, Aer Lingus, Finnair
*
Prices are per person, are for e–tickets and include all taxes & fees in CAD.

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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.