Book Cheap Delta flight from London (LHR) to Seattle (SEA) from CA $2,156

Find The Best Day to Book a Cheap Delta Flights From London to Seattle

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

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $837 round trip and CA $2,156 one way. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

Can I catch a flight from London Heathrow to Seattle - Tacoma Intl. Airport (SEA) right now?
Make sure you go to the Covid-19 Travel Advisor to see if there are any present quarantine requirements and travel advice reports in place in SEA when flying from LHR.
What terminal is Delta Air Lines at London Heathrow?
Usually, flights take off from terminal 3 at Heathrow Airport if you’ve booked a seat with Delta Air Lines. On your way to Seattle - Tacoma Intl. Airport (SEA)? Touch base with your airline (or do some online research) to see exactly which terminal you’ll be pulling into.
Are there Delta Air Lines non-stop flights from LHR to SEA?
Direct flights are available with Delta Air Lines, which means you’ll be able to travel from Heathrow Airport to Sea-Tac Airport fast. Those glorious travel experiences you’re chasing are a hassle-free flight away.
How long is a Delta Air Lines flight from LHR to SEA?
If you’re jetting from Heathrow Airport (LHR) to Sea-Tac Airport with Delta Air Lines, sit back and make yourself comfortable. This flight takes around 12 hours and 36 minutes, so try to get some shut-eye if you’re eager to arrive without jet lag.
What type of aircraft does Delta Air Lines fly from LHR to SEA?
Delta Air Lines typically uses the Boeing 787-9 or the Airbus A330-900neo on the route between Heathrow Airport and SEA.
How many direct and indirect flights does Delta Air Lines fly from LHR to SEA?
You’ll have a lot of flexibility if you’re thinking about flying with Delta Air Lines from LHR to SEA. It operates 2 flights per day on this route.
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 Sea-Tac Airport, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that 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 2021, flights departing on a Monday 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 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Grab a great Delta flight from LHR to SEA 

To find a great deal on Delta flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights. 

Flying Delta London to Seattle gives you 2 fights to choose from. With that direct flight time of 0, you’ll be touching down before you know it.  

 

Find cheap flights with Delta between London and Seattle 

Delta has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from London to Seattle with Delta are February.  

The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.  

 

Reasons to book your Delta flights with Travelocity 

Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.  

Delta Airports
Hop on a(n) Delta flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ATLUSAHartsfield-Jackson Atlanta Intl.252
DTWUSADetroit Metropolitan Wayne County156
MSPUSAMinneapolis - St. Paul Intl.131
SLCUSASalt Lake City Intl.116
SEAUSASeattle - Tacoma Intl.57
LAXUSALos Angeles Intl.41
AMSNLDSchiphol31
YYCCANCalgary Intl.26
YYZCANPearson Intl.24
JFKUSAJohn F. Kennedy Intl.23

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