Popular in | June |
---|---|
Cheapest in | January |
Round-trip from | C$ 754 |
One-way from | C$ 523 |
Users have found that flying from Seattle to London Heathrow Airport on a Tuesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 8 days in advance, which can save you up to 55% on flights from Seattle to London Heathrow Airport compared to booking the week you need them. Waiting 8 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 880. For sooner than that we have options available in the next 3 days from C$ 1,579.
November is one of the best times of the year to fly to London Heathrow Airport from Seattle. Prices for November average C$ 1,172 per person but you can even find prices for as low as C$ 763. The most expensive prices can be found in the month of June. Opting for a November flight can save you 39% on your journey compared to booking in June
Unlike in the morning, when flights are generally more expensive, you can save up to 18% on flights from Seattle to London Heathrow Airport by exploring options for tickets in the afternoon.
Fly from
Fly to
Budget
C$ 816 - C$ 843
Route
Depart
Return
Price
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Sun 29/9
1 stop14h 50m
London Heathrow
Tue 8/10
2 stops17h 46m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Fri 8/11
1 stop13h 45m
London Heathrow
Sun 17/11
1 stop14h 05m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Tue 8/10
2 stops17h 10m
London Heathrow
Tue 15/10
1 stop18h 04m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Sat 19/10
1 stop14h 27m
London Heathrow
Thu 31/10
1 stop17h 25m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Sun 29/9
Nonstop9h 35m
London Heathrow
Tue 8/10
1 stop14h 20m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Tue 24/9
Nonstop9h 35m
London Heathrow
Wed 9/10
1 stop14h 55m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Wed 2/10
Nonstop9h 20m
London Heathrow
Wed 9/10
Nonstop9h 45m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Sun 13/10
2 stops19h 10m
London Heathrow
Mon 21/10
2 stops31h 46m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Wed 2/10
1 stop13h 44m
London Heathrow
Fri 18/10
1 stop12h 16m
Currently, January is the cheapest month in which you can book a flight from Seattle to London Heathrow Airport (average of C$ 560). Flying from Seattle to London Heathrow Airport in July is currently the most expensive (average of C$ 935). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
January
C$ 763
February
C$ 830
March
C$ 929
April
C$ 911
May
C$ 950
June
C$ 1,057
July
C$ 1,274
August
C$ 1,098
September
C$ 985
October
C$ 913
November
C$ 898
December
C$ 975
LON Temperature | 4 - 17 °C |
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Crew
Food
Overall
Boarding
Comfort
Entertainment
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Crew
Food
Overall
Boarding
Comfort
Entertainment
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Crew
Food
Overall
Boarding
Comfort
Entertainment
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Crew
Food
Overall
Boarding
Comfort
Entertainment
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Crew
Food
Overall
Boarding
Comfort
Entertainment
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Crew
Food
Overall
Boarding
Comfort
Entertainment
Reviews
Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
1%of flight departures | Early morningMidnight to 6 am |
---|---|
0%of flight departures | Morning6 am to noon |
52%of flight departures | AfternoonNoon to 6 pm |
47%of flight departures | Evening6 pm to midnight |
Sunday | 20daily flights |
---|---|
Monday | 20daily flights |
Tuesday | 15daily flights |
Wednesday | 20daily flights |
Thursday | 20daily flights |
Friday | 20daily flights |
Saturday | 20daily flights |
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Yes, Cheapflights offers price alerts on Seattle to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.