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Flight Deals from Seattle to London Heathrow Airport from $258

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Stops

  • Nonstop
    from $622
  • Up to 1 stop
    $543
  • Up to 2 stops
    $514

Airlines

  • Aer Lingus
    $627
  • Air Canada
    $683
  • American Airlines
    $622
  • British Airways
    $702
  • Delta Air Lines
    $670
  • IBERIA
    $626
  • Icelandair
    $634
  • JetBlue
    $715
  • Lufthansa
    $705
  • SAS Airlines
    $514
  • SWISS
    $701
  • United Airlines
    $688
  • Virgin Atlantic
    $688

Cabin Class

  • Economy
    $514

Departure Airports

  • Seattle Tacoma International Airport
    $514

Arrival Airports

  • London Heathrow Airport
    $514

Layover Airports

  • Amsterdam Airport Schiphol
    $688
  • Calgary International Airport
    $701
  • Chicago O Hare Airport
    $627
  • Copenhagen Kastrup Airport
    $514
  • Denver International Airport
    $710
  • Dublin Airport
    $627
  • Frankfurt am Main Airport
    $688
  • General Edward Lawrence Logan International Airport
    $677
  • Los Angeles International Airport
    $682
  • Montreal Trudeau Airport
    $683
  • Munich Airport
    $687
  • New York John F Kennedy Airport
    $687
  • Newark Liberty Airport
    $694
  • Oslo Gardermoen Airport
    $631
  • Paris Charles de Gaulle Airport
    $694
  • Reykjavik Keflavik Airport
    $634
  • Salt Lake City International Airport
    $693
  • San Francisco International Airport
    $694
  • Stockholm Arlanda Airport
    $514
  • Toronto Pearson Airport
    $694
  • Vancouver International Airport
    $683
  • Washington Dulles Airport
    $718
  • Zürich Airport
    $683

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SAS Airlines Logo
SAS Airlines

09/21/25

SEA
29h 20m
CPH

09/22/25

LHR
SAS Airlines Logo
SAS Airlines

09/27/25

LHR
31h 20m
ARN
CPH

09/28/25

SEA
$514
Free cancellation within 83 hours of booking
SAS Airlines Logo
SAS Airlines

09/21/25

SEA
29h 20m
CPH

09/22/25

LHR
SAS Airlines Logo
SAS Airlines

10/14/25

LHR
18h 30m
CPH

10/15/25

SEA
$543
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

09/14/25

SEA
17h 20m
Direct

09/15/25

LHR
American Airlines Logo
American Airlines

10/07/25

LHR
1h 45m
Direct

10/07/25

SEA
$622
Free cancellation within 83 hours of booking
IBERIA Logo
IBERIA

09/14/25

SEA
17h 20m
Direct

09/15/25

LHR
IBERIA Logo
IBERIA

10/07/25

LHR
1h 45m
Direct

10/07/25

SEA
$626
Free cancellation within 83 hours of booking
Aer Lingus Logo
Aer Lingus

09/14/25

SEA
23h 50m
DUB

09/15/25

LHR
Aer Lingus Logo
Aer Lingus

10/07/25

LHR
4h 25m
DUB

10/07/25

SEA
$627
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

09/14/25

SEA
20h 34m
ORD

09/15/25

LHR
American Airlines Logo
American Airlines

10/07/25

LHR
1h 45m
Direct

10/07/25

SEA
$627
Free cancellation within 83 hours of booking
SAS Airlines Logo
SAS Airlines

09/03/25

SEA
29h 40m
CPH

09/04/25

LHR
SAS Airlines Logo
SAS Airlines

10/01/25

LHR
6h 55m
OSL
CPH

10/01/25

SEA
$631
Free cancellation within 83 hours of booking
Icelandair Logo
Icelandair

10/01/25

SEA
20h 10m
KEF

10/02/25

LHR
Icelandair Logo
Icelandair

10/14/25

LHR
5h
KEF

10/14/25

SEA
$634
Free cancellation within 83 hours of booking
Delta Air Lines Logo
Delta Air Lines

09/06/25

SEA
17h 50m
Direct

09/07/25

LHR
Delta Air Lines Logo
Delta Air Lines

09/26/25

LHR
2h 25m
Direct

09/26/25

SEA
$670
Free cancellation within 83 hours of booking
Delta Air Lines Logo
Delta Air Lines

09/21/25

SEA
27h 10m
BOS

09/22/25

LHR
Delta Air Lines Logo
Delta Air Lines

09/28/25

LHR
2h 25m
Direct

09/28/25

SEA
$677
Free cancellation within 83 hours of booking
SAS Airlines Logo
SAS Airlines

09/09/25

SEA
31h 40m
LAX
CPH

09/10/25

LHR
SAS Airlines Logo
SAS Airlines

09/30/25

LHR
18h 30m
CPH

10/01/25

SEA
$682
Free cancellation within 83 hours of booking
Air Canada Logo
Air Canada

09/14/25

SEA
23h 35m
YVR
YUL

09/15/25

LHR
Air Canada Logo
Air Canada

10/07/25

LHR
10h 46m
ZRH
YUL

10/07/25

SEA
$683
Free cancellation within 83 hours of booking
Air Canada Logo
Air Canada

09/14/25

SEA
23h 10m
YUL

09/15/25

LHR
Air Canada Logo
Air Canada

10/07/25

LHR
10h 46m
ZRH
YUL

10/07/25

SEA
$683
Free cancellation within 83 hours of booking
Air Canada Logo
Air Canada

09/07/25

SEA
26h 15m
YUL

09/08/25

LHR
Air Canada Logo
Air Canada

10/01/25

LHR
10h 4m
MUC

10/01/25

SEA
$687
Free cancellation within 83 hours of booking
Delta Air Lines Logo
Delta Air Lines

09/21/25

SEA
27h 10m
BOS

09/22/25

LHR
Delta Air Lines Logo
Delta Air Lines

09/28/25

LHR
9h 54m
JFK

09/28/25

SEA
$687
Free cancellation within 83 hours of booking
Air Canada Logo
Air Canada

10/01/25

SEA
23h 10m
YUL

10/02/25

LHR
Air Canada Logo
Air Canada

10/09/25

LHR
5h 25m
FRA

10/09/25

SEA
$688
Free cancellation within 83 hours of booking
Virgin Atlantic Logo
Virgin Atlantic

10/01/25

SEA
17h 45m
Direct

10/02/25

LHR
Virgin Atlantic Logo
Virgin Atlantic

10/09/25

LHR
5h 20m
AMS

10/09/25

SEA
$688
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

09/14/25

SEA
23h 10m
YUL

09/15/25

LHR
United Airlines Logo
United Airlines

09/30/25

LHR
5h 25m
FRA

09/30/25

SEA
$688
Free cancellation within 83 hours of booking
Virgin Atlantic Logo
Virgin Atlantic

10/01/25

SEA
20h 20m
SLC

10/02/25

LHR
Virgin Atlantic Logo
Virgin Atlantic

10/09/25

LHR
5h 20m
AMS

10/09/25

SEA
$693
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

09/14/25

SEA
21h 25m
SFO

09/15/25

LHR
United Airlines Logo
United Airlines

09/30/25

LHR
5h 25m
FRA

09/30/25

SEA
$694
Free cancellation within 83 hours of booking
Virgin Atlantic Logo
Virgin Atlantic

09/02/25

SEA
17h 45m
Direct

09/03/25

LHR
Virgin Atlantic Logo
Virgin Atlantic

09/24/25

LHR
5h
CDG

09/24/25

SEA
$694
Free cancellation within 83 hours of booking
United Airlines Logo
United Airlines

09/27/25

SEA
21h 50m
EWR

09/28/25

LHR
United Airlines Logo
United Airlines

10/07/25

LHR
5h 25m
FRA

10/07/25

SEA
$694
Free cancellation within 83 hours of booking
Air Canada Logo
Air Canada

09/13/25

SEA
42h 25m
YYZ

09/15/25

LHR
Air Canada Logo
Air Canada

10/08/25

LHR
9h 34m
MUC

10/08/25

SEA
$694
Free cancellation within 83 hours of booking
SWISS Logo
SWISS

09/24/25

SEA
23h 10m
YUL

09/25/25

LHR
SWISS Logo
SWISS

10/22/25

LHR
9h 56m
ZRH
YVR

10/22/25

SEA
$701
Free cancellation within 83 hours of booking
SWISS Logo
SWISS

09/30/25

SEA
22h 5m
YVR
YYC

10/01/25

LHR
SWISS Logo
SWISS

10/08/25

LHR
9h 56m
ZRH
YVR

10/08/25

SEA
$701
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

09/14/25

SEA
17h 20m
Direct

09/15/25

LHR
British Airways Logo
British Airways

10/07/25

LHR
1h 45m
Direct

10/07/25

SEA
$702
Free cancellation within 83 hours of booking
Lufthansa Logo
Lufthansa

09/30/25

SEA
22h 5m
YVR
YYC

10/01/25

LHR
Lufthansa Logo
Lufthansa

10/08/25

LHR
6h 9m
MUC

10/08/25

SEA
$705
Free cancellation within 83 hours of booking
Lufthansa Logo
Lufthansa

09/29/25

SEA
20h 35m
DEN

09/30/25

LHR
Lufthansa Logo
Lufthansa

10/15/25

LHR
6h 9m
MUC

10/15/25

SEA
$710
Free cancellation within 83 hours of booking
JetBlue Logo
JetBlue

09/18/25

SEA
33h 45m
JFK

09/20/25

LHR
JetBlue Logo
JetBlue

09/25/25

LHR
22h 9m
BOS

09/26/25

SEA
$715
Free cancellation within 83 hours of booking
Lufthansa Logo
Lufthansa

09/20/25

SEA
32h
IAD

09/22/25

LHR
Lufthansa Logo
Lufthansa

09/30/25

LHR
5h 25m
FRA

09/30/25

SEA
$718
Free cancellation within 83 hours of booking

Top Deals on flights from Seattle to London Heathrow Airport

Seattle, US (SEA) - London, GB (LON)

Icelandair Logo
Icelandair

Oct 21

SEA
20h 10m
KEF

Oct 22

LHR

as low as

$258

Seattle, US (SEA) - London, GB (LON)

Aer Lingus Logo
Aer Lingus

Nov 12

SEA
20h 50m
DUB

Nov 13

LHR

as low as

$375

Seattle, US (SEA) - London, GB (LON)

American Airlines Logo
American Airlines

Sep 14

SEA
17h 20m
Direct

Sep 15

LHR

as low as

$378

Seattle, US (SEA) - London, GB (LON)

Delta Air Lines Logo
Delta Air Lines

Jul 27

SEA
17h 45m
Direct

Jul 28

LHR

as low as

$378

Seattle, US (SEA) - London, GB (LON)

IBERIA Logo
IBERIA

Jul 27

SEA
17h 20m
Direct

Jul 28

LHR

as low as

$380

Seattle, US (SEA) - London, GB (LON)

Delta Air Lines Logo
Delta Air Lines

Sep 6

SEA
21h 5m
JFK

Sep 7

LHR

as low as

$382

Seattle, US (SEA) - London, GB (LON)

American Airlines Logo
American Airlines

Sep 14

SEA
22h 21m
PHL

Sep 15

LHR

as low as

$382

Seattle, US (SEA) - London, GB (LON)

American Airlines Logo
American Airlines

Jul 27

SEA
20h 34m
ORD

Jul 28

LHR

as low as

$382

Seattle, US (SEA) - London, GB (LON)

Delta Air Lines Logo
Delta Air Lines

Jul 27

SEA
29h
LAX

Jul 28

LHR

as low as

$382

Seattle, US (SEA) - London, GB (LON)

JetBlue Logo
JetBlue

Sep 18

SEA
43h
BOS

Sep 20

LHR

as low as

$384

Seattle, US (SEA) - London, GB (LON)

British Airways Logo
British Airways

Jul 28

SEA
17h 20m
Direct

Jul 29

LHR

as low as

$392

Seattle, US (SEA) - London, GB (LON)

SAS Airlines Logo
SAS Airlines

Oct 8

SEA
25h 20m
CPH

Oct 9

LHR

as low as

$394

Frequently Asked Questions

What is the typical flight duration from Seattle to London Heathrow Airport?
The typical direct flight duration from Seattle (SEA) to London Heathrow (LHR) usually ranges between 9 to 11 hours. Variations depend on weather conditions and air traffic, while connecting flights can add extra hours to your travel time. It’s a good idea to check schedules ahead of time to anticipate any delays. This information helps you plan your journey efficiently, taking into account time zone adjustments and layovers, ensuring a smoother trip between the two cities.
Are there any direct flights from Seattle to London Heathrow Airport?
Yes, there are direct flight options from Seattle to London Heathrow. Several major carriers offer non-stop routes that typically take between 9 to 11 hours, which can significantly streamline your travel experience. However, flight availability and schedules may change seasonally. To ensure an optimal connection, verify details with your preferred airline ahead of time. This careful planning can enhance your trip from Seattle to this major London hub, saving time and making your arrival more convenient.
What are the best transportation options from London Heathrow Airport to downtown London?
Transport options from London Heathrow to downtown London include the London Underground’s Piccadilly Line, Heathrow Express trains, and various bus services. The Piccadilly Line is budget-friendly, costing roughly £3 to £7 and taking about 45 to 60 minutes, while the Heathrow Express can get you to the center in 15 to 25 minutes, though at a higher price between £20 to £25. Taxis and ride-sharing services are also available, typically costing between £50 to £70. Each choice offers distinct benefits, so selecting one depends on your budget and time preferences.
What are the must-see attractions in London for travelers arriving from Seattle?
London offers numerous must-see attractions that beautifully blend history and modern culture. Key sights include the British Museum, the Tower of London, Buckingham Palace, and the Houses of Parliament, which provide a deep insight into British heritage. Additionally, a ride on the London Eye or a leisurely walk along the River Thames can enhance your visit. With entry fees generally ranging from free to around £20, visiting these landmarks can be planned to fit different budgets, ensuring an enriching experience for visitors from Seattle.
Which local dishes should travelers from Seattle try when visiting London?
Travelers from Seattle should try traditional British meals such as fish and chips, bangers and mash, and a full English breakfast while in London. Additionally, dishes like pie and mash or a hearty roast dinner offer authentic local flavor. Prices for these meals typically range between £7 to £15 in local pubs and restaurants. For a more immersive experience, consider visiting long-established eateries or local markets to sample these dishes. This culinary adventure provides a genuine taste of London’s diverse and historic food culture.
What are the best family-friendly activities in London for visitors from Seattle?
Family-friendly activities in London include interactive museums such as the Science Museum and Natural History Museum, which offer engaging exhibits for all ages. The London Zoo, the London Eye, and various West End shows are also great for keeping children entertained. Admission prices usually range from £10 to £30 per person, with many attractions offering family deals. Additionally, vast parks like Hyde Park present excellent opportunities for outdoor leisure and picnics. These activities provide a balanced mix of education and fun for a well-rounded family experience.
Are there any seasonal events in London that travelers from Seattle should not miss?
Yes, London hosts several seasonal events that travelers from Seattle should consider. Wintertime brings festive Christmas markets and light displays, while summer offers outdoor concerts and festivals like the Notting Hill Carnival. Spring features blooming gardens and cultural street fairs, and autumn is known for art exhibitions and food festivals. Event costs vary, often ranging from free entry to about £10-£30 for special events. Timing your visit during these seasonal highlights can greatly enhance your cultural experience and allow you to immerse yourself in unique local celebrations.
What are the customs requirements for travelers flying from Seattle to London?
Travelers flying from Seattle to London must ensure they have a valid passport and any necessary visas if required. Customs regulations also mandate the declaration of items that exceed duty-free limits, such as high-value electronics or luxury goods. It is important to be aware of restrictions on food, plant products, and liquids before packing. Being well-informed about both U.S. and U.K. customs guidelines can help prevent delays at arrival. Checking the latest requirements online before departure ensures a smooth border process and a more efficient travel experience.
What are the most affordable dining options in London for travelers from Seattle?
For cost-effective dining, travelers can sample meals from local food markets like Borough Market or enjoy street food options found throughout London. Affordable chain restaurants and fast-food outlets are prevalent, offering dishes typically priced between £7 to £15. Moreover, several pubs provide mid-day specials or lunch menus that are budget-friendly, and many cafés offer set menus at similar price ranges. These choices allow visitors to explore local cuisine without overspending, making it easier to balance dining experiences with other travel expenses while enjoying a genuine taste of the city.
What are the best shopping districts in London for souvenirs for visitors from Seattle?
For souvenir shopping, districts like Covent Garden, Oxford Street, and Camden Market are ideal for visitors from Seattle. These areas offer an assortment of shops ranging from high-street brands to unique boutiques selling local crafts and memorabilia. Prices vary from around £5 for smaller trinkets to £50 or more for distinctive items. Apart from shopping, these districts boast vibrant street scenes with eateries and live entertainment, enhancing the overall experience. Exploring these areas provides an authentic glimpse into London’s retail culture and offers quality keepsakes to remember your trip.
Is there a specific time of year when London is best visited by travelers from Seattle?
Travelers from Seattle often find that the shoulder seasons of spring and autumn are the best times to visit London. During these periods, the weather is generally mild, with temperatures ranging between 12°C to 18°C, ideal for exploring popular attractions. Additionally, these seasons tend to be less crowded than the summer months, providing a more relaxed environment for sightseeing. Cultural events and local festivals are also abundant during these times, giving you a richer experience. Advanced planning is recommended to secure better accommodation deals and access to key attractions.
What are the health and safety tips for travelers from Seattle visiting London?
When visiting London, travelers should remain vigilant by keeping personal belongings secure, especially in crowded public areas, to avoid pickpocketing. It is advisable to have comprehensive travel insurance and carry any essential medications. Checking weather updates and dressing in layers can help manage the variable climate. Familiarize yourself with local emergency contact numbers, such as 999 for emergencies. Following local guidelines and remaining aware of any travel advisories will ensure a safe experience. These practical tips help provide peace of mind while you enjoy exploring the city.
What are the best car rental options in London for travelers from Seattle?
For visitors considering renting a car in London, both international and local rental companies offer competitive options. Daily rental rates typically range from £30 to £70 depending on the type of vehicle and insurance coverage. However, keep in mind that driving in central London can be challenging due to congestion charges and heavy traffic. Renting a car might be more suitable for trips outside the city. It is essential to review rental contracts thoroughly, ensuring that mileage limits and insurance terms meet your needs before finalizing your booking.
Are there any unique airport amenities in London Heathrow Airport for travelers arriving from Seattle?
Yes, London Heathrow provides a host of unique amenities that enhance the traveler experience. Passengers enjoy a variety of dining options, from quick bites to gourmet meals, along with extensive duty-free shopping that offers items ranging from £10 to several hundred pounds. Heathrow also features luxury lounges, interactive art installations, free Wi-Fi, and even spa services in select terminals, catering to both leisure and business travelers. These facilities are designed to offer comfort and convenience, helping make layovers or delays a more pleasant part of your overall journey.
What travel tips should first-time visitors from Seattle to London know?
First-time visitors should familiarize themselves with London’s extensive public transportation network; purchasing an Oyster card can facilitate easy access to buses and the Underground. It’s wise to plan your itinerary ahead of time and check attraction hours for a smoother experience. Pack for variable weather by including layers and a waterproof jacket, as conditions can change quickly. Additionally, staying aware of your belongings in busy areas will help prevent any mishaps. Learning a few local customs can further enhance your visit, ensuring that your first trip is both memorable and enjoyable.

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