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AS101 Flight Information & Schedule

Alaska Airlines · London Heathrow Airport (LHR) to Seattle–Tacoma International Airport (SEA)

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AS101 London Heathrow Airport to Seattle–Tacoma International Airport nonstop flight: schedule, airports, aircraft and travel guide.

AS101 Flight Overview

AS101 is operated by Alaska Airlines and connects London Heathrow Airport (LHR) and Seattle–Tacoma International Airport (SEA). Scheduled departure: 2026-10-29 14:45 (UTC+00:00); scheduled arrival: 2026-10-29 18:05 (UTC-07:00).

AirlineAlaska Airlines
Flight numberAS101
RouteLHR to SEA
Scheduled duration10 hr 20 min

London to Seattle Route Information

AS101 is a nonstop international flight from London Heathrow Airport (LHR) to Seattle–Tacoma International Airport (SEA). Use the information below to plan your journey.

Route distanceApprox. 7,725 km
Scheduled flight time10 hr 20 min
Time difference-420 min
Flight typeInternational
01

Departure

Scheduled departure: 2026-10-29 14:45 (UTC+00:00). Confirm airport transport and terminal opening hours in advance.

02

Arrival

Scheduled arrival: 2026-10-29 18:05 (UTC-07:00). Arrange pickup, hotel and onward transport for the arrival date.

03

Time zones

Departure: London (UTC+00:00); arrival: Seattle (UTC-07:00).

AS101 On-time Performance & History

Methodology

87%Arrival on-time rate
Sample flights87 (flights)
Average departure delay40 min
Average arrival early0 min
Cancllation rate0%
Longest delay-
Early arrivals57%

Historical statistics are for reference only and do not predict future flight performance.

Aircraft, Cabin & Services

Based on currently published aircraft and cabin information; the operating aircraft may change.

Published aircraft type

Boeing 787

Economy 31 in

Seat layout266

Business 30 · Economy 236

Business Class1-2-1

Seat configuration depends on the operating aircraft

Economy Class3-3-3

31 in

MealsMeal included

Inflight entertainmentOn-demand entertainment

Inflight Wi-FiWi-Fi is available

Availability and fees depend on the flight

PowerBusiness: USB port and power outlet; Economy: USB port

BassinetAvailable

Accessibility-

AS101 Airports

Terminals follow the published schedule; check official airline channels for same-day gates and operations.

London Heathrow Airport Departure & Seattle–Tacoma International Airport Arrival Guide

Departure date: 2026-10-29. Terminal and arrival information helps plan your journey.

LHR

Departing from London Heathrow Airport

AS101 is scheduled to depart from T3. Allow time for international check-in, baggage drop, security and immigration.

SEA

Arriving at Seattle–Tacoma International Airport

Scheduled arrival is at . After immigration, take the MRT, taxi, ride-hailing service or airport bus to the city.

 

Planning your arrival

Scheduled arrival: 2026-10-29 18:05. Use the arrival date when booking hotels and pickup services.

Flight Changes, Cancellations & Missed Flights

If the schedule or aircraft changes, follow the booking channel and operating carrier rules.

01

Schedule changes

After an airline or booking-platform notice, confirm the new date, terminal and connecting transport.

02

Cancellation and changes

Refund, rebooking and involuntary-change rules depend on the booking channel, fare conditions and airline notice.

03

Missed flight

If you may not reach the airport on time, contact the booking channel or airline quickly to protect later sectors.

Check-in, Baggage & Entry Tips

International check-in deadlines, baggage allowance and entry requirements may vary by fare and traveller.

01

Arrive early for check-in

Arrive at least 3 hours before departure. Counter opening times and online check-in rules follow London Heathrow Airport guidance.

02

Check baggage allowance

Checked and carry-on baggage allowances depend on cabin, fare rules and membership tier. See the baggage terms in your booking.

03

Prepare entry documents

Before departure, check passport validity, visa or visa-free eligibility, andSeattle–Tacoma International Airport’ latest arrival declaration requirements.

What should I check before flying AS101?

01

Check the departure date

For an overnight flight, check the departure date on your ticket and plan airport transport in advance.

02

Confirm the operating carrier

Follow the airline rules shown in your booking for check-in and checked baggage.

03

Check boarding information

Gates and operating times may change; follow airline notices and airport displays.

Popular route recommendations

AS101 Frequently Asked Questions

Which airline operates this flight?

AS101 is operated by Alaska Airlines.

Where does it depart and arrive?

London Heathrow Airport (LHR) → Seattle–Tacoma International Airport (SEA).

What are the departure and arrival times?

Scheduled departure 14:45, arrival 18:05 · 10 hours 20 minutes.

Which terminal is used for check-in?

Departure terminal T3, arrival terminal No data. Check-in, gate and baggage belt are announced on the day.

Are meals and inflight entertainment available?

Meals: Meal included. Inflight entertainment: On-demand entertainment.

Explore This Route

Departure airportFlights from London Heathrow Airport
Arrival airportSeattle–Tacoma International Airport information
Operating airlineAlaska Airlines information