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Delta Flights from London (LHR) to Seattle (SEA)

Trip Type
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Amazing Delta LHR to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $481 round trip and $327 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Mar 23 -
LHR
London
to
SEA
Seattle
$327

One way

found 12 hours ago

Open LHR to SEA flights search result page
Tue, Mar 23 -
LHR
London
to
SEA
Seattle
$340

One way

found 12 hours ago

Open LHR to SEA flights search result page
Fri, Feb 19 -
LHR
London
to
SEA
Seattle
$350

One way

found 7 hours ago

Open LHR to SEA flights search result page
Fri, Feb 19 -
LHR
London
to
SEA
Seattle
$353

One way

found 7 hours ago

Open LHR to SEA flights search result page
Fri, Feb 19 -
LHR
London
to
SEA
Seattle
$356

One way

found 7 hours ago

Open LHR to SEA flights search result page
Tue, Nov 23 - Sun, Nov 28
LHR
London
to
SEA
Seattle
$481

Roundtrip

found 3 days ago

Open LHR to SEA flights search result page
Fri, Feb 19 -
LHR
London
to
SEA
Seattle
$350

One way

found 7 hours ago

Open LHR to SEA flights search result page
Fri, Feb 19 -
LHR
London
to
SEA
Seattle
$353

One way

found 7 hours ago

Open LHR to SEA flights search result page
Fri, Feb 19 -
LHR
London
to
SEA
Seattle
$356

One way

found 7 hours ago

Open LHR to SEA flights search result page
Tue, Mar 23 -
LHR
London
to
SEA
Seattle
$327

One way

found 12 hours ago

Open LHR to SEA flights search result page
Tue, Mar 23 -
LHR
London
to
SEA
Seattle
$340

One way

found 12 hours ago

Open LHR to SEA flights search result page
Tue, Nov 23 - Sun, Nov 28
LHR
London
to
SEA
Seattle
$481

Roundtrip

found 3 days ago

Open LHR to SEA flights search result page

FAQs about Delta Air Lines Flights from LHR to SEA

What terminal is Delta Air Lines at London Heathrow?

If you're flying between London (LHR-Heathrow) and Seattle, WA (SEA-Seattle - Tacoma Intl.) with Delta Air Lines, you're likely to be taking off from terminal 3. Your airline should be able to let you know which terminal you'll be jumping off the plane at.

Are there Delta Air Lines non-stop flights from LHR to SEA?

Expect to make at least one stopover when flying from London (LHR-Heathrow) to Seattle, WA (SEA-Seattle - Tacoma Intl.), as Delta Air Lines doesn't operate direct flights on this route. While waiting for your connection, you might like to grab a new novel or an interesting magazine from the airport bookstore to help pass the time.

How long is a Delta Air Lines flight from LHR to SEA?

Your Delta Air Lines flight from London (LHR-Heathrow) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will take an average of 14 hours and 49 minutes, so it's wise to pack a change of clothes and some toiletries for the trip. If you want to keep boredom at bay, squeeze a few books and puzzles in your carry-on too.

What type of aircraft does Delta Air Lines fly from LHR to SEA?

The Boeing 787-9 is more often than not operated by Delta Air Lines between LHR and SEA. Check out the in-flight magazine in your seat pocket if you want to know more about it.

How many direct and indirect flights does Delta Air Lines fly from LHR to SEA?

There are roughly 4 flights daily with Delta Air Lines from London (LHR-Heathrow) to Seattle, WA (SEA-Seattle - Tacoma Intl.).

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Seattle, WA (SEA-Seattle - Tacoma Intl.), please visit our Customer Service Portal.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2019, flights departing on a Tuesday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2019. Savings are subject to change based on departure location, date and destination.

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Per night/room

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Popular Delta Flight Routes from LHR

Top Delta Flight Routes from SEA

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*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.