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Seattle To London United Airlines Flights

  • One-Way
  • Round-Trip
  • Multi-City

From

Indira Gandhi International Airport

To

Chhatrapati Shivaji International Airport

DEPARTURE DATE

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Friday

Return Date

Book a round trip
to save more

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TRAVELLER & CLASS

1 Traveller(s)

Economy

August
September
October
November
December
January
February
March
April

August is by far the best month, wherein you can get cheapest flights for Seattle to London United Airlines. Meanwhile, June is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.

Things to know
arrow One Way Fare
August

August- During this month the footfall is less so, the flight is gradually inexpensive.

round Round Trip Fare
August

August - is the cheapest month to book round trip flights.

Cheaper Fare
₹ 38603

Cheapest Fare- Currently, this is the fare price based on the current demand.

disclDisclaimer - All the mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Best Flight From Seattle To London

United Airlines
United Airlines

SEA

07:00

Seattle Seattle Tacoma International Airport

Mon , 20 Oct 2025

16h 40m
ellipse
1 Stop

LHR

07:40

London London Heathrow Airport

Tue, 21 Oct 2025

₹34408
United Airlines
United Airlines

SEA

14:20

Seattle Seattle Tacoma International Airport

Mon , 20 Oct 2025

12h 20m
ellipse
1 Stop

LHR

10:40

London London Heathrow Airport

Tue, 21 Oct 2025

₹36553
United Airlines
United Airlines

SEA

07:20

Seattle Seattle Tacoma International Airport

Wed , 20 Aug 2025

15h 10m
ellipse
1 Stop

LHR

06:30

London London Heathrow Airport

Thu, 21 Aug 2025

₹34408
United Airlines
United Airlines

SEA

12:43

Seattle Seattle Tacoma International Airport

Tue , 02 Sep 2025

12h 57m
ellipse
1 Stop

LHR

09:40

London London Heathrow Airport

Wed, 03 Sep 2025

₹34408
United Airlines
United Airlines

SEA

15:36

Seattle Seattle Tacoma International Airport

Tue , 02 Sep 2025

12h 44m
ellipse
1 Stop

LHR

12:20

London London Heathrow Airport

Wed, 03 Sep 2025

₹101824
United Airlines
United Airlines

SEA

06:40

Seattle Seattle Tacoma International Airport

Tue , 02 Sep 2025

16h 35m
ellipse
1 Stop

LHR

07:15

London London Heathrow Airport

Wed, 03 Sep 2025

₹34408
ellipse

Find the Lowest Airfare Seattle to London United Airlines

Cheapest Fares
Fare
Date
Airline
Departure
Lowest Airfare
₹38603
15 June 2025
WestJet Airlines
07:05 AM
Cheapest Airfare Within 30 Days
₹34059
23 July 2025
Icelandair
19:00 PM
Cheapest Airfare Within 90 Days
₹18981
23 August 2025
Icelandair
15:45 PM
ellipse

Early Morning Flight Seattle to London United Airlines

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Cheapest Flight
Found
₹36935
group
Average Flight
Time
17h 15m
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Date/Time
20 Oct 2025
06:00 AM
plane
Airlines
Delta Airlines
Ellipse

Late Night Flight Seattle to London United Airlines

wallet
Cheapest Flight
Found
₹37841
group
Average Flight
Time
09h 20m
calendar
Date/Time
20 Oct 2025
20:20 PM
plane
Airlines
British Airways
Best Time to Travel

How early should I book a flight ticket to get the lowest airfare from Seattle to London United Airlines?

To crack the better offer on Seattle to London United Airlines , it’s better to make advanced bookings at least few weeks prior of your intended date because price might rise eventually due to the delay.

Fare
Days In Advance

Seattle to London United Airlines Information

You can book your United Airlines to travel from Seattle (SEA) to London (LHR) with ease and convenience at the starting fare of ₹ 18981 via EaseMyTrip. Usually, the price of an United Airlines ticket from Seattle to London varies from ₹ 18981 to ₹ 38603. This is due to the fluctuating demand during peak seasons and festive seasons. However, with EaseMyTrip, you can avail exclusive discounts and offers to book a flight ticket within your budget.

In addition to this, when you book your flight ticket via EaseMyTrip, we equip you with comprehensive information like airline number, schedule, departure status and arrival time, thereby making your journey hassle-free. You can always rely on us for exciting deals and offers for booking your United Airlines ticket from Seattle to London.

Important Details Regarding Seattle to London

Constantly browsing the internet for cheap Seattle to London United Airlines can be a tedious task. However, you can simplify it with the help of EaseMyTrip. Our database can help you with relevant flight information and with exclusive discounts and deals, you can book your United Airlines Seattle to London in a budget friendly manner.

The aerial distance between Seattle and London is 1148 Kms only and hence, we would advise you to board a direct United Airlines to your destination. You can also board an indirect flight to add a pit stop on your journey. The direct Indigo Airlines takes an average of 21:25 of time to reach the destination.

Seattle to London United Airlines Connectivity & Schedule Info

Currently, the majority of the Seattle to London United Airlines are direct and hence, you can expect to reach your destination in a matter of a couple of hours. However, there are a few United Airlines with stopovers. You can choose to layover either at Ahmedabad or Bangalore depending upon your preference and budget.

Additionally, Seattle Tacoma International Airport Seattle and London Heathrow Airport London are the nearest and major airports for your travel and if you are looking forward to saving money on your flight ticket, then a round trip is what you should go for.

Why Make Seattle to London United Airlines Booking with EaseMyTrip

EaseMyTrip is one of the largest online travel platforms in India and a trusted name in the Indian travel industry. Whether you are looking to book first class tickets or business class, premium economy, economy class tickets on Seattle to London United Airlines, our user-friendly platform is bound to add comfort and convenience on your booking journey. You can also check out amazing offers and customize the services as per your preferences and number of passengers.

On top of this, you can enjoy amazing deals and discounts for your Seattle to London United Airlines. With 24/7 reliable support, lower fares, airport pick-up services and first-class customer services, EaseMyTrip is definitely the go-to platform for your journey.

So, if you are looking forward to booking your flight ticket from Seattle (SEA) to London (LHR) on United Airlines, try EaseMyTrip today.

FAQ's
Q.Is there a web check-in option for Seattle to London United Airlines?
Q.Can I book online tickets for Seattle to London United Airlines?
Q.Can I get cheap online tickets for Seattle to London United Airlines?
Q.When is the best time to purchase Seattle to London United Airlines Tickets?
Q.How long does it take to travel between Seattle and London by United Airlines?
Q.How many classes are available to fly from Seattle to London United Airlines?
Q.Is there any promo code to get discounts on Seattle to London United Airlines on EaseMyTrip?
Q.What is the best time to book a Seattle to London United Airlines ticket with the lowest airfare?