Cheap flights To Mercer Island (SEA) from $26

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Cheap Flights to Mercer Island from $26 One Way, $51 Round Trip

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

Thu, Dec 25 - Thu, Jan 1
LAX
Los Angeles Intl.
SEA
Seattle - Tacoma Intl.
$51 Roundtrip, found 1 hour ago
$51
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Dec 25 from Los Angeles Intl. to Seattle - Tacoma Intl., returning Thu, Jan 1, priced at $51 found 1 hour ago
Sat, Nov 15 - Sat, Nov 15
PHX
Sky Harbor Intl.
SEA
Seattle - Tacoma Intl.
$59 Roundtrip, found 1 day ago
$59
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Nov 15 from Sky Harbor Intl. to Seattle - Tacoma Intl., returning Sat, Nov 15, priced at $59 found 1 day ago
Mon, Jan 12 - Mon, Jan 12
PHX
Sky Harbor Intl.
PAE
Seattle Paine Field Intl. Airport
$63 Roundtrip, found 14 hours ago
$63
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Mon, Jan 12 from Sky Harbor Intl. to Seattle Paine Field Intl. Airport, returning Mon, Jan 12, priced at $63 found 14 hours ago
Mon, Dec 8 - Mon, Dec 8
PHX
Sky Harbor Intl.
PAE
Seattle Paine Field Intl. Airport
$64 Roundtrip, found 17 hours ago
$64
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Mon, Dec 8 from Sky Harbor Intl. to Seattle Paine Field Intl. Airport, returning Mon, Dec 8, priced at $64 found 17 hours ago
Sat, Nov 15 - Sat, Dec 6
PHX
Sky Harbor Intl.
SEA
Seattle - Tacoma Intl.
$64 Roundtrip, found 2 days ago
$64
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Nov 15 from Sky Harbor Intl. to Seattle - Tacoma Intl., returning Sat, Dec 6, priced at $64 found 2 days ago
Mon, Dec 8 - Mon, Dec 15
DFW
Dallas-Fort Worth Intl.
SEA
Seattle - Tacoma Intl.
$98 Roundtrip, just found
$98
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Dec 8 from Dallas-Fort Worth Intl. to Seattle - Tacoma Intl., returning Mon, Dec 15, priced at $98 just found
Tue, Jan 13 - Tue, Jan 13
SFO
San Francisco Intl.
SEA
Seattle - Tacoma Intl.
$111 Roundtrip, found 1 day ago
$111
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Jan 13 from San Francisco Intl. to Seattle - Tacoma Intl., returning Tue, Jan 13, priced at $111 found 1 day ago
Wed, Mar 11 - Wed, Mar 11
SFO
San Francisco Intl.
PAE
Seattle Paine Field Intl. Airport
$111 Roundtrip, found 4 days ago
$111
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Mar 11 from San Francisco Intl. to Seattle Paine Field Intl. Airport, returning Wed, Mar 11, priced at $111 found 4 days ago
Fri, Jan 30 - Fri, Jan 30
SFO
San Francisco Intl.
SEA
Seattle - Tacoma Intl.
$112 Roundtrip, found 3 days ago
$112
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Jan 30 from San Francisco Intl. to Seattle - Tacoma Intl., returning Fri, Jan 30, priced at $112 found 3 days ago
Sat, Jan 10 - Mon, Jan 12
PHX
Sky Harbor Intl.
SEA
Seattle - Tacoma Intl.
$117 Roundtrip, just found
$117
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Jan 10 from Sky Harbor Intl. to Seattle - Tacoma Intl., returning Mon, Jan 12, priced at $117 just found

Mercer Island Flight Information

Traveling To
Mercer Island
Destination Airport IATA Code
SEA
Number of Airlines Serving
Airlines
Frontier Airlines, Alaska Airlines, American Airlines, United, Delta, Southwest Airlines
Flight Price
$51
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.
Seatac Inn
2.0-star property

Seatac Inn

Dec 14 - Dec 20

6 night stay

Los Angeles (LAX) to Seattle (SEA)

Frontier Airlines • Coach

Seattle (SEA) to Los Angeles (LAX)

Alaska Airlines • Coach
Price was $491, price is now $354 per person
$354
per person
found 1 day ago
1 Hotel Seattle
5.0-star property

1 Hotel Seattle

Dec 12 - Dec 15

3 night stay

Los Angeles (LAX) to Seattle (SEA)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $915, price is now $583 per person
$583
per person
found 1 day ago
Hotel 116, A Coast Hotel Bellevue
3.0-star property

Hotel 116, A Coast Hotel Bellevue

Dec 14 - Dec 20

6 night stay

Los Angeles (LAX) to Seattle (SEA)

Frontier Airlines • Coach

Seattle (SEA) to Los Angeles (LAX)

Alaska Airlines • Coach
Save 100% on your flight
Price was $614, price is now $443 per person
$443
per person
found 1 day ago
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Mercer Island premium economy flight packages

Price found within the past 48 hours. Click for updated prices.
DoubleTree by Hilton Seattle Airport
4.0-star property

DoubleTree by Hilton Seattle Airport

7.8/10 Good! (2,598 reviews)

Dec 12 - Dec 14

2 night stay

Ontario (ONT) to Seattle (SEA)

Delta • Roundtrip • PremiumEconomy
Price was $394, price is now $331 per person
$331
per person
found 1 day ago
The room was lovely but what made me so happy with hotel was our waitress Delsey in the Seaport Grill. We were a group of 20 but she handled all our needs expertly and kept us informed at every step of the process. Food was delicious!

Reviewed on Sep 30, 2025

citizenM Seattle Pioneer Square
4.0-star property

citizenM Seattle Pioneer Square

9.2/10 Wonderful! (3,770 reviews)

Dec 12 - Dec 14

2 night stay

Ontario (ONT) to Seattle (SEA)

Delta • Roundtrip • PremiumEconomy
Price was $441, price is now $355 per person
$355
per person
found 1 day ago
Great location, very small room but everything one needs was there

Reviewed on Oct 21, 2025

@ Marbella Lane - Hidden Gem on Scenic Shady Lake
3.0-star property

@ Marbella Lane - Hidden Gem on Scenic Shady Lake

No reviews

Dec 12 - Dec 14

2 night stay

Ontario (ONT) to Seattle (SEA)

Delta • Roundtrip • PremiumEconomy
Price was $968, price is now $805 per person
$805
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.
Mediterranean Inn
3.0-star property

Mediterranean Inn

9.4/10 Exceptional! (5,472 reviews)

Dec 8 - Dec 11

3 night stay

San Francisco (SFO) to Seattle (SEA)

Delta • Roundtrip • FirstClass
Price was $651, price is now $554 per person
$554
per person
found 1 day ago
The room was delightful and clean. There were extra blankets in the closet that we used to keep us warm while sitting on the rooftop in the evening. The staff was very helpful and directed us to a tasty cafe down the street. The hotel is a short walk to the waterfront which has a scenic path that leads to Pike Place Market.

Reviewed on Oct 19, 2025

Lotte Hotel Seattle
5.0-star property

Lotte Hotel Seattle

9.4/10 Exceptional! (1,011 reviews)

Dec 8 - Dec 11

3 night stay

San Francisco (SFO) to Seattle (SEA)

Delta • Roundtrip • FirstClass
Price was $1,064, price is now $859 per person
$859
per person
found 1 day ago
Clean and beautiful

Reviewed on Aug 4, 2025

Palihotel Seattle
4.0-star property

Palihotel Seattle

9/10 Wonderful! (2,436 reviews)

Dec 31 - Jan 4

4 night stay

Ontario (ONT) to Seattle (SEA)

Alaska Airlines • Roundtrip • FirstClass
Price was $876, price is now $743 per person
$743
per person
found 13 hours ago
Great location. Friendly and helpful staff.

Reviewed on Sep 20, 2025

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See all available trips from San Francisco to Mercer Island
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Mercer Island

Finding cheap flights to Mercer Island is easy when you have Orbitz at your fingertips. Not only does Orbitz offer great deals on Mercer Island flights, but we also include some special extras to make booking a breeze. Just check out our:

Mobile Site and Apps

With Orbitz’s mobile site, m.orbitz.com, you can book your flights to Mercer Island through your smartphone or tablet’s Web browser. Plus, our free downloadable apps for Android and iPhone mean it’s just a simple click to access your flight updates and alerts. You can even book exclusive mobile-only deals on hotels to go with your flights to Mercer Island—even on the same day.

Pick and Choose or Book Full Vacation Packages

Don’t just be satisfied with great deals on Mercer Island flights—go for the full package! With Orbitz, you can also find fantastic savings on the perfect hotel, car rental, cruise, and even activities, so you don’t waste your trip waiting in line but have the time to enjoy your trip. Pick and choose the add-ons you need, or book an entire vacation package for greater overall discounts.

Rewards That Are Miles Better

Booking directly with an airline earns you air miles or points, and you can get those same rewards with booking on Orbitz too. When you book qualifying flights to Mercer Island with Orbitz, just add in your frequent flyer number during your online booking and your details will be sent to your program.

Great Deals Every Day

Add in our extra savings on packages, free nights, and other discounts, and you know you are in good hands.

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 $51 to $117. If you were flying one-way from Los Angeles (LAX), you could have landed tickets from just $26.
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.