Cheap flights from Heathrow to Redmond

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How to find the cheapest flight from
Heathrow (LHR) to Redmond (SEA)

All the information you need to plan the best LHR to SEA flight in 2021: compare Heathrow to Redmond flight prices with the expected peak season, weather and rainfall in Redmond.
LHR - SEA
Price
£305 - £565

Popular in

July

High demand for flights, 28% potential price rise

Cheapest in

February

Best time to find cheap flights, 25% potential price drop

Average price

£401

Average for round-trip flights in April 2021

Round-trip from

£305

From Heathrow to Redmond

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from Heathrow to Redmond?

Travellers have found it’s best to book a flight 52 days in advance to save up to 51% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 52 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Heathrow to Redmond 1-2 weeks in advance for as low as £445, or £583 for flights within the next 24 hours.

What is the cheapest month to fly from Heathrow to Redmond?

February is one of the best times of the year to fly to Redmond from Heathrow. Prices for February average £393 per person but you can even find prices for as low as £259. The most expensive prices can be found in the month of July. Opting for a February flight can save you 37% on your journey compared to booking in February

Cheap flights from Heathrow to Redmond in April, May 2021

The best prices found for LHR to SEA flights in April, May
21 May - 30 May
£319pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
LHR
London Heathrow
18 May - 6 Jul
£321pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
   
2 STOPS
LHR
London Heathrow
18 May - 6 Jul
£322pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
LHR
London Heathrow

Heathrow to Redmond 2021 flight deals

Cheap flights to Redmond from Heathrow found for this year
5 Aug - 21 Aug
£315pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
LHR
London Heathrow
26 Aug - 2 Sep
£318pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
LHR
London Heathrow
16 Oct - 30 Oct
£318pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
   
2 STOPS
LHR
London Heathrow

Direct flights to Redmond from Heathrow

Save time with Heathrow to Redmond direct flight deals
18 May - 25 May
£392pp
LHR
London Heathrow
Virgin Atlantic
Direct
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
Direct
LHR
London Heathrow
18 May - 6 Jul
£413pp
LHR
London Heathrow
Virgin Atlantic
Direct
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
Direct
LHR
London Heathrow
18 May - 6 Jul
£433pp
LHR
London Heathrow
Iberia
Direct
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Iberia
Direct
LHR
London Heathrow

Last-minute flights from Heathrow to Redmond

Late deals on return flights to Redmond from Heathrow, departing today and this week
28 Apr - 17 Jun
£490pp
LHR
London Heathrow
United Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
United Airlines
   
2 STOPS
LHR
London Heathrow
29 Apr - 6 May
£491pp
LHR
London Heathrow
Austrian Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Austrian Airlines
 
1 STOP
LHR
London Heathrow
29 Apr - 5 May
£493pp
LHR
London Heathrow
Lufthansa
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Lufthansa
 
1 STOP
LHR
London Heathrow

One-way flights to Redmond from Redmond

The cheapest one-way flights from Heathrow to Redmond
16:25 - 08:00
Multiple Airlines
3 stops
47h 35m
LHR - SEA
Multiple Airlines
£292
Kiwi.com
09:30 - 07:21
Air Canada
2 stops
53h 51m
LHR - SEA
Air Canada
£294
Air Canada
05:05 - 16:58
Austrian Airlines
2 stops
43h 53m
LHR - SEA
Austrian Airlines
£303
aua.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Heathrow</span> to <span class="emphasized">Redmond</span> flights.

Flight FAQs

From Heathrow to Redmond

Are flight prices decreasing from Heathrow to Seattle due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Heathrow and Seattle for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from London Heathrow to Seattle/Tacoma Intl to control the spread of COVID-19?

New policies can now be found on Delta to help keep travellers safe while flying. Airline carriers are regularly disinfecting and sanitising their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially-distanced seating (for a limited time) will work towards keeping travellers safer while flying from London Heathrow to Seattle/Tacoma Intl. Policies will vary by airline.

Which airlines flying from London Heathrow to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Some of our airline partners flying from London Heathrow to Seattle/Tacoma Intl have new flexible policies in place due to COVID-19. British Airways, Virgin Atlantic, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like British Airways with this kind of flexibility.

Can I find flights from Heathrow to Redmond for under £359 on Cheapflights?

Yes, there are multiple flights from Heathrow to Redmond for under £359. The cheapest flight booked recently is on Multiple Airlines for just £315, but on average you can expect to pay £325.

Are there direct flights from Heathrow to Redmond for under £431 on Cheapflights?

Cheapflights has 20 direct flights from Heathrow to Redmond under £431. A good price for a direct flight from Heathrow to Redmond is less than £453.

Are there last-minute flights available from Heathrow to Redmond for under £503?

There are currently 20+ open flights from Heathrow to Redmond within the next 7 days for less than £503.

What days are direct flights available from Heathrow to Seattle?

Direct flights are available for this route on the following days: Tuesday, Thursday.

How many flights depart from Heathrow to Redmond on average per day?

Travellers can expect 2 flights from London Heathrow to Seattle/Tacoma Intl on average per day.
Afternoon (Midday - 6pm) - 100% of flight departures

Does it rain more in Heathrow or Seattle?

In Heathrow, there will be less rainfall in Heathrow compared to Seattle over the next 20 days.

Is Heathrow weather warmer or cooler than Seattle?

With an average temperature of 25 °C, peak weather can be found in July. As a traveller, expect to see changes in flight prices during that period. The temperatures in Seattle are hotter than in Heathrow.

How long does is the flight from Heathrow to Redmond?

Departing from Heathrow to Redmond will take you 14h. The distance from Heathrow to Redmond is about 4812 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines to flying from Heathrow to Redmond return?

According to our current data, United Airlines (£332), Air Canada (£337), and SWISS (£338) offers the cheapest pricing from Heathrow to Redmond. You may be able to fly from Heathrow to Redmond for 18% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Heathrow to Redmond one-way?

For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as £274. Users have also found prices from £276 and £280 on Lufthansa and Virgin Atlantic, respectively.

Alternative routes for Heathrow to Redmond

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Redmond

Things to know before you go - useful duration and weather info for your trip from Heathrow to Redmond.
Today's exchange rate
£1 = $1.40

Airports servicing London

Airports servicing Seattle

Top 10 airlines flying from Heathrow to Redmond

The chart below displays the airlines Cheapflights users travelling from Heathrow to Redmond choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Austrian Airlines
£311 £439 No cancel fee 78%
Search Austrian Airlines flights
United Airlines
£335 £535 No cancel fee 69%
Search United Airlines flights
Lufthansa
£374 £625 No cancel fee 76%
Search Lufthansa flights
Air Canada
£358 £634 No cancel fee 67%
Search Air Canada flights
SWISS
£510 £666 No cancel fee 79%
Search SWISS flights
American Airlines
£408 £667 No cancel fee 71%
Search American Airlines flights
Iberia
£402 £690 No cancel fee 77%
Search Iberia flights
KLM
£388 £697 No cancel fee 75%
Search KLM flights
Icelandair
£465 £715 No cancel fee 76%
Search Icelandair flights
Aer Lingus
£537 £738 No cancel fee N/A
Search Aer Lingus flights

Hourly flight availability from Heathrow to Redmond

See what time of day planes typically take off from Heathrow towards Redmond.
Morning 6 AM to midday 57% of flight departures
Afternoon Midday to 6 PM 42% of flight departures
Early morning Midnight to 6 AM 1% of flight departures
Evening 6 PM to midnight 0% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Heathrow to Redmond
See how many times per day planes take to the skies headed from Heathrow to Redmond.
Sunday
6 daily flights
Monday
6 daily flights
Tuesday
6 daily flights
Wednesday
4 daily flights
Thursday
6 daily flights
Friday
4 daily flights
Saturday
6 daily flights
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