Cheap flights To Mercer Island (SEA) from $109

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Cheap Flights to Mercer Island from $109 One Way, $157 Round Trip

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Fri, Sep 25 - Mon, Sep 28
PDX
Portland Intl.
SEA
Seattle - Tacoma Intl.
$157 Roundtrip, found 6 days ago
$157
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Sep 25 from Portland Intl. to Seattle - Tacoma Intl., returning Mon, Sep 28, priced at $157 found 6 days ago
Fri, Sep 25 - Mon, Sep 28
PDX
Portland Intl.
PAE
Seattle Paine Field Intl. Airport
$157 Roundtrip, found 6 days ago
$157
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Sep 25 from Portland Intl. to Seattle Paine Field Intl. Airport, returning Mon, Sep 28, priced at $157 found 6 days ago
Thu, Sep 10 - Wed, Sep 16
PDX
Portland Intl.
PAE
Seattle Paine Field Intl. Airport
$159 Roundtrip, found 6 days ago
$159
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Sep 10 from Portland Intl. to Seattle Paine Field Intl. Airport, returning Wed, Sep 16, priced at $159 found 6 days ago
Sat, Aug 29 - Wed, Sep 23
PDX
Portland Intl.
SEA
Seattle - Tacoma Intl.
$162 Roundtrip, found 6 days ago
$162
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Aug 29 from Portland Intl. to Seattle - Tacoma Intl., returning Wed, Sep 23, priced at $162 found 6 days ago
Mon, Aug 31 - Mon, Sep 7
PDX
Portland Intl.
BFI
Boeing Field
$258 Roundtrip, found 2 days ago
$258
Roundtrip
found 2 days ago
Select Air Excursions LLC flight, departing Mon, Aug 31 from Portland Intl. to Boeing Field, returning Mon, Sep 7, priced at $258 found 2 days ago
Wed, Oct 7 - Mon, Oct 12
IAH
George Bush Intercontinental
SEA
Seattle - Tacoma Intl.
$286 Roundtrip, just found
$286
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Oct 7 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Mon, Oct 12, priced at $286 just found
Sat, Oct 3 - Sat, Oct 10
IND
Indianapolis Intl.
SEA
Seattle - Tacoma Intl.
$320 Roundtrip, found 16 hours ago
$320
Roundtrip
found 16 hours ago
Select Delta flight, departing Sat, Oct 3 from Indianapolis Intl. to Seattle - Tacoma Intl., returning Sat, Oct 10, priced at $320 found 16 hours ago
Sat, Sep 12 - Tue, Sep 15
IND
Indianapolis Intl.
PAE
Seattle Paine Field Intl. Airport
$323 Roundtrip, found 6 days ago
$323
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Sep 12 from Indianapolis Intl. to Seattle Paine Field Intl. Airport, returning Tue, Sep 15, priced at $323 found 6 days ago
Wed, Sep 9 - Tue, Sep 15
IND
Indianapolis Intl.
SEA
Seattle - Tacoma Intl.
$337 Roundtrip, found 6 days ago
$337
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Sep 9 from Indianapolis Intl. to Seattle - Tacoma Intl., returning Tue, Sep 15, priced at $337 found 6 days ago
Wed, Sep 9 - Tue, Sep 15
IND
Indianapolis Intl.
SEA
Seattle - Tacoma Intl.
$337 Roundtrip, found 6 days ago
$337
Roundtrip
found 6 days ago
Select United flight, departing Wed, Sep 9 from Indianapolis Intl. to Seattle - Tacoma Intl., returning Tue, Sep 15, priced at $337 found 6 days ago

Mercer Island Flight Information

Traveling To
Mercer Island
Destination Airport IATA Code
SEA
Number of Airlines Serving
Airlines
Alaska Airlines, Air Excursions LLC, Delta, Frontier Airlines, Southwest Airlines, American Airlines, United
Flight Price
$157
Earliest Departing Flight
Latest Departing Flight

Book Your Flight & Hotel Together & Save

Mercer Island economy flight packages

Price found within the past 48 hours. Click for updated prices.
Mediterranean Inn
3.0-star property

Mediterranean Inn

Sep 17 - Sep 20

3 night stay

Los Angeles (LAX) to Seattle (SEA)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $790, price is now $511 per person
$511
per person
found 1 day ago
1 Hotel Seattle
5.0-star property

1 Hotel Seattle

Sep 18 - Sep 20

2 night stay

Los Angeles (LAX) to Seattle (SEA)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,023, price is now $651 per person
$651
per person
found 9 hours ago
Lotte Hotel Seattle
5.0-star property

Lotte Hotel Seattle

Sep 24 - Sep 27

3 night stay

Los Angeles (LAX) to Seattle (SEA)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $982, price is now $644 per person
$644
per person
found 1 day ago
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Mercer Island first class flight packages

Price found within the past 48 hours. Click for updated prices.
The State Hotel
4.0-star property

The State Hotel

9.4/10 Exceptional! (1,375 reviews)

Sep 5 - Sep 7

2 night stay

Los Angeles (LAX) to Seattle (SEA)

Delta • FirstClass

Seattle (SEA) to Los Angeles (LAX)

American Airlines • FirstClass
Price was $1,297, price is now $1,094 per person
$1,094
per person
found 1 day ago
Great location. The room was small.. no closet but it was very clean. The rooftop bar was small but the view was great. We loved the restaurant located right inside

Reviewed on Aug 5, 2026

1 Hotel Seattle
5.0-star property

1 Hotel Seattle

9.4/10 Exceptional! (353 reviews)

Sep 5 - Sep 7

2 night stay

Los Angeles (LAX) to Seattle (SEA)

Delta • FirstClass

Seattle (SEA) to Los Angeles (LAX)

American Airlines • FirstClass
Price was $1,611, price is now $1,216 per person
$1,216
per person
found 1 day ago

Lotte Hotel Seattle
5.0-star property

Lotte Hotel Seattle

9.4/10 Exceptional! (1,011 reviews)

Sep 5 - Sep 7

2 night stay

Los Angeles (LAX) to Seattle (SEA)

Delta • FirstClass

Seattle (SEA) to Los Angeles (LAX)

American Airlines • FirstClass
Price was $1,299, price is now $1,105 per person
$1,105
per person
found 1 day ago

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See all available trips from Los Angeles to Mercer Island
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Mercer Island

End your search for discount fares on flights to Mercer Island. Orbitz has all the best prices on Mercer Island flights. With Orbitz, you can expect:

Cheap Deals on Flights to Mercer Island

We offer big discounts and last-minute savings on Mercer Island flights. We make it easy for you to research, plan, and book your flight to Mercer Island — all while offering great low fares. With guaranteed low prices and cutting-edge mobile tools, the perfect trip begins on Orbitz.

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Get alerts, updates, or book your Mercer Island flight or other flights wherever you are. Download our free apps for iPhone, Android, and iPad or visit our mobile site at m.orbitz.com to conveniently review or change your air travel plans. We can also send free alerts about your Mercer Island flight to your email or mobile phone, so you get advance warning about potential disruptions and flight delays. Need to book a hotel with your Mercer Island flight? Access exclusive, mobile-only deals via our mobile site and free apps – even on the same day.

Great Customer Care

We want to make your travel booking experience smooth and easy, from planning and researching Mercer Island flights to the actual booking. If you want to cancel your flight to Mercer Island, many tickets can be conveniently cancelled online. Contact our Customer Service to make changes to your air ticket.

Miles or Points Toward Frequent Flyer Programs

Much like booking with an airline directly, you can earn frequent flyer miles or points on qualified flights to Mercer Island with Orbitz. When completing your booking, just fill in your frequent flyer number for the airline you are flying with or for one of its available partner airlines.

Frequently asked questions

Which airlines fly to Mercer Island?
With 20 airlines offering services to Seattle - Tacoma Intl. Airport (SEA), the main gateway to Mercer Island, you have loads of options. Find an incredible deal among these well-known international carriers that fly in and out of this city:

  • Alaska Airlines - 257 flights to Mercer Island per month
  • Delta - 210 flights to Mercer Island per month
  • Air Canada - 121 flights to Mercer Island per month

What is the best airport to fly to in Mercer Island?
Jump on a flight to Seattle - Tacoma Intl. Airport (SEA) and get ready to explore the sights and sounds of this popular city. The airport is around 9 miles southwest of the downtown area. Also look into the price of tickets to Snohomish County - Paine Field Airport (PAE), another terminal that services Mercer Island.
How much is a flight to Mercer Island?
Round-trip flights to Mercer Island this past week ranged from $157 to $337. If you were flying one-way from Portland (PDX), you could have landed tickets from just $109.
How to book the cheapest flight to Mercer Island?
Scoring cheap flights to Mercer Island is as easy as booking with Orbitz. But if you'd love to make sure you're nabbing the best flight deals around, here are a few tips to keep your wallet happy:

  • Departing from or arriving at nearby airports can help you save on airfares. Type in your preferred departure and arrival points. Next, click on the 'Nearby airports' function below to explore your options.
  • If your travel plans aren't cast in stone, click on the 'Show flexible dates' link to bring up the flight deals across different departure dates. You may find an even better fare.
  • Select 'Show options' to filter your search results. You can choose your preferred seating class and airline here. Under 'Sort & Filter' to the left, you can even select whether you want to fly in the morning, afternoon or evening.
  • Lock in your fare as soon as you've sorted your travel dates. While it does happen from time to time, airfares rarely get more affordable as your departure date approaches.
  • Combine your flights, hotels and car rentals into an impressive package deal. Save your money for things that really excite you, like exploring every corner of Mercer Island.
  • Flying during peak season can mean pricey airfares. If possible, plan your trip outside of popular periods, such as Christmas, New Year's Eve and Easter.

How long is a flight to Mercer Island?
Of course, flight times differ based on where you're departing from. But to give you an understanding of the average duration, cast your eye over these busy routes to Mercer Island:

  • San Francisco, CA (SFO-San Francisco Intl.) to Seattle - Tacoma Intl. Airport (SEA) - 2 hours and 25 minutes
  • Portland, OR (PDX-Portland Intl.) to Seattle - Tacoma Intl. Airport (SEA) - 1 hour and 18 minutes
  • Spokane, WA (GEG-Spokane Intl.) to Seattle - Tacoma Intl. Airport (SEA) - 1 hour and 21 minutes

What is the best time to book a flight to Mercer Island?
Generally speaking, January is the ideal time to purchase your plane ticket. This is followed by February and August. Bear this in mind while searching for a cheap flight to Mercer Island.
What day of the week is the cheapest to book a flight to Mercer Island?
Make a booking on a Tuesday, Wednesday or Saturday. Generally, these are the cheapest days to purchase tickets to Mercer Island. The vacation of your dreams starts with a fantastic flight deal!
What is the cheapest day of the week to fly to Mercer Island?
Everyone loves a great bargain, so think about leaving earlier in the week for cheap flights to Mercer Island. Orbitz data from 2020 suggests you can secure the best deals on flights departing on Mondays. Tuesday is the next cheapest day, while Saturdays are likely to cost an arm and a leg. Many people tend to travel at the end of the week, so leave those Saturdays for binge-watching your favorite movies.
What is the cheapest month to fly to Mercer Island?
If you have some wiggle room with your travel dates, think about leaving sometime in August. Orbitz data shows that this is generally the best month to travel if you want cheap flights to Mercer Island. As you would expect, airfares increase in the busy month of June and flights fill up fast.
Which airlines allow free cancellation?
If you suspect your travel plans may change, Orbitz will help you lock in a flexible ticket. All you have to do is select "Filter by flexible change policies" when searching for your Mercer Island flights. We'll show you airlines that include free cancellation within 24 hours and no change fees — along with our famous low prices.
What do I need for the flight to Mercer Island?
From onboard entertainment to travel essentials like noise-canceling headphones, there are several things a seasoned flyer won't take off without. To make sure you're organized for your journey, check out this useful list:

  • Travel paperwork such as e-tickets and some identification are a must. To avoid any last-minute delays when checking in, ensure that your booking is made with the exact name, birth date and gender as listed on your government-issued ID.
  • Pack your carry-on bag with snacks and things to keep you busy and you'll happily pass the time on your medium-haul flight. If possible, jump on the airport's Wi-Fi and download your favorite podcast or playlist to your phone or tablet prior to take off.
  • Regardless what the season is at your destination, airplane cabins can feel a little chilly. Carry an extra layer on board with you to stay nice and warm.

How many direct flights are there to Mercer Island?
With 1,427 direct flights every month, traveling to Mercer Island doesn't need to be stressful. Alaska Airlines is one airline offering nonstop services to this vibrant destination.
How do I get cheap first-class/business deals to Mercer Island?
If you think a business or first-class fare is out of your price range, think again. Here are some practical tips to help you score a premium flight to Mercer Island for less:

  • Flexibility isn't just useful in the gym. Avoid locking in your travel dates so you can snap up cheaper airfares when a sale comes along.
  • Many budget carriers have outstanding business or premium-class seating without the hefty fees.
  • Make a bid for an upgrade. Some airlines hold online auctions that let you put down a price for a seat up the front. You can also try upgrading with points earned through a loyalty scheme.

How to get into Mercer Island from the airport?
Hotfoot it into central Mercer Island with a Seattle - Tacoma Intl. Airport (SEA) car rental. Budget and Hertz are two reliable agencies at Seattle - Tacoma Intl. Airport (SEA). Throw your baggage in the trunk, head 9 miles to the northeast and you'll be in the center of the city in a jiffy. Lots of travelers also use taxis or public transportation to travel into town from the airport. From there, you can still rent a ride to see more of the region with one of our Mercer Island car rentals.
What is the best time to go to Mercer Island?
Mercer Island is a popular place in February, April and August. If you plan to head there during these months, it would be a good idea to book ahead of time to ensure you get the greatest deals. Like to know what summertime's like in Mercer Island? Average daily temperatures normally float between 50 ºF and 75 ºF. Like most of the Northern Hemisphere, the summer season kicks off June 20 here.

More to Explore

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.