Cheap Flights to Mercer Island

View AU$100 flight on Wed, 18 Feb 2026Opens in a new window

Popular airlines to Mercer Island

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Cheap Tickets to Mercer Island

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, 30 Jan - Mon, 2 Feb
LAX
Los Angeles
SEA
Seattle
AU$219 Return, found 6 days ago
AU$219
Return
found 6 days ago
Select Alaska Airlines flight, departing Fri, 30 Jan from Los Angeles to Seattle, returning Mon, 2 Feb, priced at AU$219 found 6 days ago
American Airlines
Sat, 6 Dec - Sat, 13 Dec
LAX
Los Angeles
SEA
Seattle
AU$242 Return, found 14 hours ago
AU$242
Return
found 14 hours ago
Select American Airlines flight, departing Sat, 6 Dec from Los Angeles to Seattle, returning Sat, 13 Dec, priced at AU$242 found 14 hours ago
Delta
Sat, 6 Dec - Sat, 13 Dec
LAX
Los Angeles
SEA
Seattle
AU$274 Return, found 14 hours ago
AU$274
Return
found 14 hours ago
Select Delta flight, departing Sat, 6 Dec from Los Angeles to Seattle, returning Sat, 13 Dec, priced at AU$274 found 14 hours ago
Hawaiian Airlines
Mon, 17 Nov - Mon, 24 Nov
LAX
Los Angeles
SEA
Seattle
AU$304 Return, found 1 day ago
AU$304
Return
found 1 day ago
Select Hawaiian Airlines flight, departing Mon, 17 Nov from Los Angeles to Seattle, returning Mon, 24 Nov, priced at AU$304 found 1 day ago
United
Sat, 6 Dec - Sat, 13 Dec
LAX
Los Angeles
SEA
Seattle
AU$350 Return, found 14 hours ago
AU$350
Return
found 14 hours ago
Select United flight, departing Sat, 6 Dec from Los Angeles to Seattle, returning Sat, 13 Dec, priced at AU$350 found 14 hours ago

Find the cheapest month to fly from Columbus (CMH) to Seattle (SEA)

September is typically the cheapest month to fly

From AU$207 - AU$373 per traveller.

Mercer Island Flights

Have the time of your life in Mercer Island

Flying to Mercer Island is now easier than ever when you use Expedia to book your trip. We’ve got an extensive catalogue of Mercer Island flight deals, giving you the greatest number of options to choose from. Whether you prefer to fly on weekdays or weekends, in the morning or at night, a quick search on Expedia.com.au will help you find cheap tickets to Mercer Island in seconds. We even make it simple for you to stick with a certain airline if you’re trying to rack up frequent flyer points.

Tips for flying and packing light

If it’s been a while since you’ve travelled, you might be due for a refresher when it comes to flying. That’s where our helpful blog, Out There Starts Here, comes in. Wondering whether to pack for fine dining or more casual eats? Or whether you really need to bring a jacket? Written by seasoned travel experts, the articles on our blog provide you with the latest details about certain destinations, so you know just what to expect. Check out some of our recent articles for the smartest ways to see the sights.

Fly for less when you bundle airfare and accommodation

Our already low airfares are even more affordable when you bundle your flights with a stay at one of the hotels in Mercer Island. By booking all of your travel plans with us, you’ll save time and money, and enjoy the convenience of having all of your arrangements in one place.

Get the power of planning in the palm of your hand

Booking your trip to Mercer Island, Seattle has never been easier than when you use our mobile app to plan your dream getaway. The Expedia App is available on both Android and iOS, allowing you to reserve flights and hotels at any time of day, no matter what kind of phone you use. You’ll also get exclusive offers, receive flight updates, and can earn extra points. Wherever you are, the Expedia App helps you get where you want to be.

Join the Expedia Rewards Program

If you enjoy the finer things in life, sign up for our rewards program to receive exclusive benefits when you book with us. Expedia Rewards opens the door to member-only deals, +VIP Access hotel benefits, and earning Expedia Rewards points, that you can redeem your way. You’ll also get access to Unreal Deals that could save you the price of a plane ticket to Mercer Island when bundled with your accommodation.

What are you waiting for?

Expedia.com.au helps you find cheap flights to Mercer Island AU$219. So why wait another second to begin planning your trip? Start your search right now, and you could be boarding the next Mercer Island-bound flight. Bon voyage!

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 kilometres 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 kilometres from downtown). Snohomish County Airport (40 kilometres 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.

Flights to Mercer Island information
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Return price
AU$218

Trending flights to Mercer Island

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, 15 Mar - Sun, 22 Mar
BNE
Brisbane
SEA
Seattle
AU$1,160 Return, found 4 hours ago
AU$1,160
Return
found 4 hours ago
Select American Airlines flight, departing Sun, 15 Mar from Brisbane to Seattle, returning Sun, 22 Mar, priced at AU$1,160 found 4 hours ago

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