£351 Cheap Flights to Mercer Island

View £351 flight on Tue, 14 Apr 2026Opens in a new window

Popular airlines to Mercer Island

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Cheap round-trip flights to Mercer Island

Prices were available within the past 7 days and start at £351 for one-way flights and £505 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Thu, 21 May - Sun, 31 May
LHR
London
SEA
Seattle
£505 Return, just found
£505
Return
just found
Select Scandinavian Airlines flight, departing Thu, 21 May from London to Seattle, returning Sun, 31 May, priced at £505 just found
Condor
Thu, 23 Apr - Sun, 26 Apr
LGW
London
SEA
Seattle
£517 Return, found 2 days ago
£517
Return
found 2 days ago
Select Condor flight, departing Thu, 23 Apr from London to Seattle, returning Sun, 26 Apr, priced at £517 found 2 days ago
Icelandair
Tue, 14 Apr - Thu, 23 Apr
LGW
London
SEA
Seattle
£518 Return, found 2 hours ago
£518
Return
found 2 hours ago
Select Icelandair flight, departing Tue, 14 Apr from London to Seattle, returning Thu, 23 Apr, priced at £518 found 2 hours ago
KLM
Thu, 12 Nov - Thu, 19 Nov
LHR
London
SEA
Seattle
£557 Return, found 9 hours ago
£557
Return
found 9 hours ago
Select KLM flight, departing Thu, 12 Nov from London to Seattle, returning Thu, 19 Nov, priced at £557 found 9 hours ago
Air France
Wed, 18 Nov - Wed, 25 Nov
LHR
London
SEA
Seattle
£562 Return, found 10 hours ago
£562
Return
found 10 hours ago
Select Air France flight, departing Wed, 18 Nov from London to Seattle, returning Wed, 25 Nov, priced at £562 found 10 hours ago

Alternative airports near Mercer Island

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Flights from £284
SEA
Seattle - Tacoma Intl.
Cheapest
Flights from £284

Frequently asked questions

What is the name of Mercer Island's airport?
Most travellers like to fly into Seattle - Tacoma Intl. Airport (SEA) when visiting the bustling city of Mercer Island.
How far is Sea-Tac Airport from central Mercer Island?
It's 16 kms (10 miles) from SEA to downtown Mercer Island. Make your life easier by working out the quickest way of getting from the terminal to the city centre before you land.
What airport is best to fly into Mercer Island?
If you're planning on flying to Mercer Island, you'll probably be landing at Seattle - Tacoma Intl. Airport (SEA) (16 kms (10 miles) from downtown). Snohomish County Airport (40 kms (25 miles) from downtown) is the other main airport here.
How many airlines fly to Mercer Island?
Mercer Island is serviced by 38 airlines from 124 worldwide airports.
Which airlines fly to Mercer Island?
Alaska Airlines, Delta and American Airlines fly the most frequently to Mercer Island. The highest number of flights arrive here from Los Angeles, with Alaska Airlines offering the most services on this route.
How many nonstop flights are there to Mercer Island?
Flying to someplace new is much more straightforward when there aren't any stopovers involved. If you're heading to Mercer Island, the fantastic news is that there are around 3,464 direct flights operating each week.
Where are the most popular flights to Mercer Island departing from?
Flights to Mercer Island from Los Angeles, Phoenix and Portland airports are very popular.
How long is the flight to Mercer Island Airport?
If it's Los Angeles you're leaving behind, you'll be in the air for around 3 hours before you arrive in Mercer Island. Tarmac to tarmac from Phoenix generally takes 3 hours and 17 minutes and from Portland, the average flight time is 1 hour and 5 minutes.
How to book the cheapest flight to Mercer Island?
If you want to save some cash on your Mercer Island holiday, listen up! As every experienced jet-setter will tell you, avoid booking at the last minute. Prices are generally more expensive just prior to the departure date. Another great way to nab the most competitive fare is to shop around. If where you're headed has a few airports, don't forget to look into the cost of flying into a less busy terminal. Finally, another simple way to save some money is be ready to book fast. If you find an amazing bargain, don't think twice — snap it up while the opportunity's there.
Do you have any tips for my flight to Mercer Island?
Wherever you're coming from, flying can be a pleasant experience if you've planned ahead. Take a peek at these handy tips that will help get your Mercer Island escape started on the right foot. What to pack in your hand luggage:

  • A plane trip can be a cruisy experience if you pack the right things. Firstly, you'll want a few basic toiletry items, such as toothpaste, a toothbrush and some deodorant, a fresh change of clothes and a good novel. Secondly, make room in your carry-on bag for your electronic gadgets, chargers, your medications and perhaps a quality neck pillow too. Lastly, don't forget to bring your passport, travel docs and your bank cards.

Do not pack the following items in your hand luggage:

  • While the list of prohibited items differs between airlines, the general guide to follow is avoid carrying anything flammable, sharp or explosive. This includes screwdrivers, knives, aerosol cans and bleaching agents. Sporting equipment like baseball bats, and items that could injure passengers, such as swords and guns, can't come on board with you either.

What to wear on a flight:

  • Your goal here is to be as comfortable as possible. Choose easy-to-remove footwear, dress in loose, natural fibers and remember to bring a sweater in case you get chilly in the cabin.
  • The result of sustained periods of inactivity, deep vein thrombosis (DVT) is a blood clot condition that can affect passengers on long-haul flights. Lower your risks by staying hydrated, keeping your legs moving and wearing compression socks to help improve your circulation.

How to get through airport security fast when flying to Mercer Island?
A little pre-planning before you get to the airport will help make your trip to Mercer Island a piece of cake. We've compiled some top tips for a speedy journey past security:

  • First things first. Your travel documents and passport will need to be inspected by security personnel. Keep them someplace accessible so you don't have to dig around for them.
  • The X-ray machine is up next. Empty your pockets and remove anything that is likely to set off the scanner's alarm. This includes items like earphones or headphones, as well as bulky coats or jackets. They'll all need to go on the X-ray conveyor belt.
  • For just a few moments, you'll need to unplug from technology. Your phone, tablet and any other electronics will also need to be sent through the scanner.
  • Remove all gels and liquids from your hand luggage. They often need to be sent through the X-ray separately. Each product should be no larger than 3.4 ounces (100 millilitres) and everything must fit in a quart-size (one litre), clear zip-lock bag.
  • There's a possibility that you'll be required to take your shoes off for scanning, so wearing slip-on sneakers is always a clever idea.
  • Airlines won't allow any sharp items or pocket knives in your hand luggage. If you need to bring these kinds of items, check them in.

Book with confidence

Expedia flights to Mercer Island

Searching for cheap flights to Mercer Island? No travel company presents more choices than Expedia if you're looking to compare flights to Mercer Island. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Seattle. Expedia provides the cheapest flights to many destinations in Seattle and you may find even greater savings if you combine your flight with a hotel stay in Mercer Island.

Expedia is the largest online travel agency which means that Expedia have access to cheap flights. So make sure you check Expedia regularly for these bargain flights because the cheapest airline tickets sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Mercer Island for that period and let you choose your preferred time and airline. If you need additional assistance, Expedia Customer Service representatives are available from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends. Our capable staff will be able to help you with any questions regarding your Mercer Island flight, or other booking questions that may arise. When you book flights with Expedia you can rest assured that you have booked the best flight at the lowest price.

Expedia flights to Mercer Island

Travel information

Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Return price
£504

Trending flights to Mercer Island

Prices were available within the past 7 days and start at £351 for one-way flights and £505 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Thu, 21 May - Sun, 31 May
LHR
London
SEA
Seattle
£505 Return, just found
£505
Return
just found
Select Scandinavian Airlines flight, departing Thu, 21 May from London to Seattle, returning Sun, 31 May, priced at £505 just found

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