$32 Cheap Flights to SeaTac, WA

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How much is the cheapest flight to SeaTac?

Prices were available within the past 7 days and start at $32 for one-way flights and $63 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Harbour Air Seaplanes
Sun, Aug 11 - Wed, Aug 14
CXH
Vancouver Harbour Seaplane Base
LKE
Lake Union Seaplane Base
$238 Roundtrip, found 1 day ago
$238
Roundtrip
found 1 day ago
Select Harbour Air Seaplanes flight, departing Sun, Aug 11 from Vancouver Harbour Seaplane Base to Lake Union Seaplane Base, returning Wed, Aug 14, priced at $238 found 1 day ago
Harbour Air Seaplanes
Tue, Sep 10 - Mon, Sep 16
CXH
Vancouver Harbour Seaplane Base
LKE
Lake Union Seaplane Base
$257 Roundtrip, found 6 days ago
$257
Roundtrip
found 6 days ago
Select Harbour Air Seaplanes flight, departing Tue, Sep 10 from Vancouver Harbour Seaplane Base to Lake Union Seaplane Base, returning Mon, Sep 16, priced at $257 found 6 days ago
Harbour Air Seaplanes
Mon, Jul 1 - Fri, Jul 12
CXH
Vancouver Harbour Seaplane Base
LKE
Lake Union Seaplane Base
$282 Roundtrip, found 3 days ago
$282
Roundtrip
found 3 days ago
Select Harbour Air Seaplanes flight, departing Mon, Jul 1 from Vancouver Harbour Seaplane Base to Lake Union Seaplane Base, returning Fri, Jul 12, priced at $282 found 3 days ago
Harbour Air Seaplanes
Thu, Jun 6 - Thu, Jun 13
CXH
Vancouver Harbour Seaplane Base
LKE
Lake Union Seaplane Base
$285 Roundtrip, found 5 days ago
$285
Roundtrip
found 5 days ago
Select Harbour Air Seaplanes flight, departing Thu, Jun 6 from Vancouver Harbour Seaplane Base to Lake Union Seaplane Base, returning Thu, Jun 13, priced at $285 found 5 days ago
Harbour Air Seaplanes
Sat, Jun 29 - Wed, Jul 3
CXH
Vancouver Harbour Seaplane Base
LKE
Lake Union Seaplane Base
$294 Roundtrip, found 5 days ago
$294
Roundtrip
found 5 days ago
Select Harbour Air Seaplanes flight, departing Sat, Jun 29 from Vancouver Harbour Seaplane Base to Lake Union Seaplane Base, returning Wed, Jul 3, priced at $294 found 5 days ago

Find Your Flights to SeaTac SEA

Cheap flights to SeaTac (SEA)

Get started finding a cheap flight to SeaTac on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to SeaTac.

Roundtrip prices range from $63 - $294, and one-ways to SeaTac start as low as $32.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

Airlines that fly to SeaTac (SEA)

You have several options for which airline you choose to travel with to SeaTac. There are 10 airlines flying into SEA: Harbour Air Seaplanes. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programs may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel in one online platform.

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at the optimal times. Airfare to SeaTac (SEA) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to SEA in August and in July for one-ways.

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24-hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

How do I find cheap flights to SeaTac that have flexible change policies?
We understand that plans can change from one day to the next, so choosing a flexible fare with Expedia is a wise idea. Simply check the “No change fee” box directly under the “Flexible change policies” filter. Your affordable, flexible flight to SeaTac is only a few clicks away.
What is the name of the airport in SeaTac?
Seattle - Tacoma Intl. Airport (SEA) is the principal airport that serves SeaTac.
How far is Seattle - Tacoma Intl. Airport (SEA) from central SeaTac?
If you’re staying in the center of SeaTac, you’ll be there within moments after touching down at Sea-Tac Airport. The terminal is only 0.4 mi from the downtown area.
How can I book the cheapest flight to SeaTac?
Land the cheapest flight by being flexible with your travel dates, arrival/departure airports and times, and any stops on your route. Cheap fares also depend on the airline. When searching for your flight to SeaTac with Expedia, consider filtering the results based on your preferred carrier. Another smart idea is to book ahead of time. While it may be possible to pick up some great deals, ticket prices generally increase close to the departure date. Right now, one of the cheapest one-way fares to SeaTac $27. This is for a flight leaving Las Vegas in June. Enter your travel details into the search bar and check out our SeaTac flight deals. Don’t forget that if you bundle your airfare and hotel, you can land even bigger savings!
Which day of the week is the best day to buy a plane ticket to SeaTac?
According to our research, Sunday is the best day to buy plane tickets. Airfares do vary with demand though, so it’s a good idea to be checking prices regularly. Like another insider tip? Start browsing airfares to SeaTac as soon as you’ve decided on your travel dates and be ready to book when you spot a bargain. The optimal booking window is from 21 days to around 45 days out from takeoff, so the earlier you start your search, the greater the odds are of locking in an epic deal! Savings are subject to change and may vary depending on selections made.
What airport is best to fly into SeaTac?
If you’re planning on jumping on a plane to SeaTac, you’ll most likely land at Sea-Tac Airport (0.4 mi from downtown). PAE (50 mi from downtown) is the other main airport that services the city.
Which airlines fly to SeaTac?
From takeoff to landing, you can look forward to a comfortable journey with Alaska Airlines. One of 32 airlines that connects SeaTac with 124 airports around the globe, it operates the greatest number of services between Phoenix and SeaTac. Delta Air Lines is another sought-after choice with travelers.
How many nonstop flights are there to SeaTac?
With around 3,610 direct flights every week, you’ll be arriving in SeaTac before you can say, “Are we there yet?”
Where are the most popular flights to SeaTac departing from?
Travelers frequently jet off from Phoenix, Las Vegas and Anchorage airports when heading to SeaTac.
Do you have any tips for my flight to SeaTac?

  • Get your vacation off to a promising start by being prepared. Pack the important stuff — like your passport, travel documents and any medications you need — first. After that, consider downloading the latest movies on your tablet for a sans-guilt binge session. Or, bring that novel you’ve been wanting to read. Lastly, a snack or two to nibble on and a memory-foam neck pillow will help make your journey as comfy as possible.
  • You’ll also want to check with your airline regarding what you can’t take on board your flight. Razor blades, pocket knives, swords and batons are among the prohibited items. Anything sharp, explosive or flammable is generally not allowed in your carry-on. Don’t forget to pack any sports equipment like tennis rackets or baseball bats only in your checked luggage.

What to wear on a flight:

  • The aisles of a plane aren’t designed to be a catwalk. Layer up with comfortable, loose-fitting clothing and bring a pullover since it can get cool in the cabin on long-haul flights. Sneakers or other closed-toe shoes are ideal for longer journeys.
  • Consider wearing compression tights or socks to reduce the risk of deep vein thrombosis (DVT). This blood clotting condition can be caused by long periods of sitting, especially on long journeys. Doing leg and foot exercises in your seat or walking around the cabin will help improve your circulation.

How can I get a cheap last-minute flight to SeaTac?
Picking up a cheap, spur-of-the-moment flight to SeaTac is as simple as being flexible with your travel plans. Have some wiggle room with your travel dates, flight times and choice of airline. If your destination has multiple airports, compare the prices of flying into each of them for the best deal on your fare.
Where can I learn more about changing or canceling my flight to SeaTac?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.
Flights to SeaTac information
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Roundtrip price
$62

Trending flights to SeaTac

Prices were available within the past 7 days and start at $32 for one-way flights and $63 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Thu, Sep 19 - Mon, Sep 23
LAX
Los Angeles Intl.
SEA
Seattle - Tacoma Intl.
$63 Roundtrip, just found
$63
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Sep 19 from Los Angeles Intl. to Seattle - Tacoma Intl., returning Mon, Sep 23, priced at $63 just found
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