---
title: "Seattle (SEA) to London (LHR) flights: who flies it"
description: "Delta Air Lines, Alaska Airlines and 2 more airlines fly nonstop from SEA to LHR, about 27 flights a week. Upgrade and award space by date on 2LNR, next 14 days free."
canonical: "https://2lnr.com/routes/sea-lhr"
url: "https://2lnr.com/routes/sea-lhr.md"
date_modified: "2026-10-18T05:10:47Z"
---

# Seattle to London (SEA-LHR): nonstop upgrade & award space

British Airways, Delta Air Lines, Alaska Airlines, and Virgin Atlantic fly nonstop between Seattle (SEA) and London (LHR), roughly 27 times a week. The timetable below shows the nonstop scheduled at 8h 45m to 10h 50m for the 4,786 miles. 2LNR checks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines flights on this route, so you can see which departures have space before you book.

Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated October 24, 2026.

See SEA to LHR on the interactive map [Get started free](https://2lnr.com/login)

27

Flights a week, 4-week average

8h 45m to 10h 50m

Scheduled flight time

4,786 mi

Nonstop distance

Free

To get started

## Seattle to London flight schedule

Scheduled nonstop departures for SEA to LHR starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Seattle (SEA) to London (LHR)

| Date | Flight | Airline | Departs SEA | Arrives LHR | Duration | Aircraft |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| Fri, Oct 23 | BA 52 | British Airways | 13:30 | 06:45 | 9h 15m | [Boeing 787-10 Dreamliner](https://2lnr.com/seatmaps/ba/787-10.md) |
| Fri, Oct 23 | VS 106 | Virgin Atlantic | 17:30 | 11:20 | 9h 50m | [Airbus A330-900neo](https://2lnr.com/seatmaps/vs/a330-900neo.md) |
| Fri, Oct 23 | DL 292 | Delta Air Lines | 18:15 | 11:00 | 8h 45m | [Airbus A330-200](https://2lnr.com/seatmaps/dl/a330-200.md) |
| Fri, Oct 23 | BA 48 | British Airways | 20:20 | 13:45 | 9h 25m | [Boeing 777-300ER](https://2lnr.com/seatmaps/ba/777-300er.md) |
| Fri, Oct 23 | AS 100 | Alaska Airlines, Inc. | 21:40 | 15:05 | 9h 25m | Boeing 787-9 Dreamliner |
| Fri, Oct 23 | DL 20 | Delta Air Lines | 21:50 | 15:35 | 9h 45m | [Airbus A330-900neo](https://2lnr.com/seatmaps/dl/a330-900neo.md) |
| Sat, Oct 24 | BA 52 | British Airways | 13:30 | 05:45 | 9h 15m | Boeing 787-10 Dreamliner |
| Sat, Oct 24 | VS 106 | Virgin Atlantic | 17:30 | 11:20 | 10h 50m | Airbus A330-900neo |
| Sat, Oct 24 | DL 20 | Delta Air Lines | 17:45 | 10:40 | 9h 55m | Airbus A330-200 |
| Sat, Oct 24 | AS 100 | Alaska Airlines, Inc. | 19:40 | 12:20 | 9h 40m | Boeing 787-9 Dreamliner |
| Sat, Oct 24 | BA 48 | British Airways | 20:20 | 13:45 | 10h 25m | Boeing 777-300ER |
| Sun, Oct 25 | DL 20 | Delta Air Lines | 17:45 | 10:40 | 9h 55m | Airbus A330-200 |
| Sun, Oct 25 | AS 100 | Alaska Airlines, Inc. | 19:40 | 12:20 | 9h 40m | Boeing 787-9 Dreamliner |
| Sun, Oct 25 | BA 48 | British Airways | 20:20 | 13:45 | 10h 25m | Boeing 777-300ER |
| Mon, Oct 26 | DL 20 | Delta Air Lines | 17:45 | 10:40 | 9h 55m | Airbus A330-200 |
| Mon, Oct 26 | AS 100 | Alaska Airlines, Inc. | 19:40 | 12:20 | 9h 40m | Boeing 787-9 Dreamliner |
| Mon, Oct 26 | BA 48 | British Airways | 20:20 | 13:45 | 10h 25m | Boeing 777-300ER |
| Tue, Oct 27 | BA 52 | British Airways | 13:30 | 06:45 | 10h 15m | Boeing 787-10 Dreamliner |
| Tue, Oct 27 | DL 20 | Delta Air Lines | 17:45 | 10:40 | 9h 55m | Airbus A330-200 |
| Tue, Oct 27 | AS 100 | Alaska Airlines, Inc. | 19:40 | 12:20 | 9h 40m | Boeing 787-9 Dreamliner |
| Tue, Oct 27 | BA 48 | British Airways | 20:20 | 13:45 | 10h 25m | Boeing 777-300ER |
| Wed, Oct 28 | DL 20 | Delta Air Lines | 17:45 | 10:40 | 9h 55m | Airbus A330-200 |
| Wed, Oct 28 | AS 100 | Alaska Airlines, Inc. | 19:40 | 12:20 | 9h 40m | Boeing 787-9 Dreamliner |
| Wed, Oct 28 | BA 48 | British Airways | 20:20 | 13:45 | 10h 25m | Boeing 777-300ER |
| Thu, Oct 29 | BA 52 | British Airways | 13:30 | 06:45 | 10h 15m | Boeing 787-10 Dreamliner |
| Thu, Oct 29 | DL 20 | Delta Air Lines | 17:45 | 10:40 | 9h 55m | Airbus A330-200 |
| Thu, Oct 29 | AS 100 | Alaska Airlines, Inc. | 19:40 | 12:20 | 9h 40m | Boeing 787-9 Dreamliner |
| Thu, Oct 29 | BA 48 | British Airways | 20:20 | 13:45 | 10h 25m | Boeing 777-300ER |

Showing all 28 scheduled SEA to LHR departures across 7 days with service, starting October 23, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every SEA to LHR date on the interactive map

## Aircraft on the Seattle to London nonstop

In the schedule table on this page, British Airways flies the [Boeing 777-300ER](https://2lnr.com/seatmaps/ba/777-300er.md) and the [Boeing 787-10 Dreamliner](https://2lnr.com/seatmaps/ba/787-10.md). Delta Air Lines flies the [Airbus A330-200](https://2lnr.com/seatmaps/dl/a330-200.md) and the [Airbus A330-900neo](https://2lnr.com/seatmaps/dl/a330-900neo.md). Alaska Airlines flies the Boeing 787-9 Dreamliner. Virgin Atlantic flies the [Airbus A330-900neo](https://2lnr.com/seatmaps/vs/a330-900neo.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

## Confirmed upgrade & award space on SEA to LHR departures

2LNR tracks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines, segment by segment and date by date. Open the calendar for Seattle to London to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

In the 7 days to October 19, 2026, 2LNR checked award space on Seattle to London departures from October 19 to November 1. Delta Air Lines had space open on 10 of 14 dates checked and Alaska Airlines on 6 of 14.

### See real availability

Confirmed upgrade or award seats by date on the SEA to LHR departures 2LNR tracks, checked against live inventory so you know what's open before you book.

### Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

### Plan on the map

See SEA to LHR on the interactive route map, with schedules, connections, and route statistics.

## Airlines flying Seattle to London nonstop

Carriers operating SEA to LHR nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

- [British Airways (BA) route map](https://2lnr.com/routes/airlines/ba.md)\
  [The aircraft BA flies](https://2lnr.com/seatmaps/ba.md)
- [Delta Air Lines (DL) route map](https://2lnr.com/routes/airlines/dl.md)\
  [The aircraft DL flies](https://2lnr.com/seatmaps/dl.md)
- [Alaska Airlines (AS) route map](https://2lnr.com/routes/airlines/as.md)\
  [The aircraft AS flies](https://2lnr.com/seatmaps/as.md)
- [Virgin Atlantic (VS) route map](https://2lnr.com/routes/airlines/vs.md)\
  [The aircraft VS flies](https://2lnr.com/seatmaps/vs.md)

See SEA to LHR on the interactive map →

## Frequently asked questions about SEA to LHR

**How long is the flight from Seattle (SEA) to London (LHR)?**

Scheduled flight times from Seattle (SEA) to London (LHR) run from 8h 45m to 10h 50m across the departures in the schedule table on this page. The nonstop covers about 4,786 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

**Which airlines fly nonstop from SEA to LHR?**

British Airways, Delta Air Lines, Alaska Airlines, and Virgin Atlantic fly SEA to LHR nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines.

**How many flights a week are there from SEA to LHR?**

About 27 nonstop flights a week run between Seattle (SEA) and London (LHR) in the current schedule, operated by British Airways, Delta Air Lines, Alaska Airlines, and Virgin Atlantic. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

**What time do flights from SEA to LHR depart?**

Scheduled SEA to LHR nonstops in the next 7 days with service leave between 13:30 and 21:50, local time at Seattle. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

**Which flights operate SEA to LHR nonstop?**

In the schedule table on this page, SEA to LHR nonstops fly as BA 48 and BA 52 on British Airways; DL 20 and DL 292 on Delta Air Lines; AS 100 on Alaska Airlines; and VS 106 on Virgin Atlantic. The table lists each departure by date with its times and aircraft.

**How do I check upgrade or award availability on SEA to LHR?**

Open the SEA to LHR route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines and Alaska Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Flying the other way? See [LHR to SEA upgrade and award space](https://2lnr.com/routes/lhr-sea.md).

Award seats rather than schedules? See [Delta Air Lines award availability](https://2lnr.com/awards/dl.md) or [Alaska Airlines award availability](https://2lnr.com/awards/as.md).

Looking beyond this route? See [every route from Seattle (SEA)](https://2lnr.com/routes/sea.md), or [every route from London (LHR)](https://2lnr.com/routes/lhr.md).

Nonstops to London (LHR) from other airports within 150 miles of Seattle (SEA):

- [Vancouver (YVR) to London (LHR)](https://2lnr.com/routes/yvr-lhr.md), 127 miles from SEA
- [Portland (PDX) to London (LHR)](https://2lnr.com/routes/pdx-lhr.md), 129 miles from SEA

Distances are great-circle between the airports, not driving distance.

- [How Delta upgrades clear](https://2lnr.com/about/dl/upgrades.md)
- [How to read award availability by date](https://2lnr.com/guides/award-availability.md)

## Never miss SEA to LHR upgrade or award space

See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro.

[Get started free](https://2lnr.com/login)