$204 Cheap Flights from Seattle (SEA) to Quito (UIO)

View $204 flight on Fri, Apr 17, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Mariscal Sucre Intl. Airport (UIO)

Cheap Flights from Seattle to Quito (SEA-UIO)

Prices were available within the past 7 days and start at $204 for one-way flights and $509 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Jan 26 - Fri, Feb 6
SEA
Seattle
UIO
Quito
$509 Roundtrip, found 19 hours ago
$509
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Mon, Jan 26 from Seattle to Quito, returning Fri, Feb 6, priced at $509 found 19 hours ago
Alaska Airlines
Thu, Feb 12 - Fri, Mar 6
SEA
Seattle
UIO
Quito
$516 Roundtrip, found 12 hours ago
$516
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Thu, Feb 12 from Seattle to Quito, returning Fri, Mar 6, priced at $516 found 12 hours ago
Alaska Airlines
Mon, Jan 26 - Fri, Feb 6
SEA
Seattle
UIO
Quito
$525 Roundtrip, found 19 hours ago
$525
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Mon, Jan 26 from Seattle to Quito, returning Fri, Feb 6, priced at $525 found 19 hours ago
Alaska Airlines
Fri, Jan 30 - Thu, Feb 5
SEA
Seattle
UIO
Quito
$541 Roundtrip, found 14 hours ago
$541
Roundtrip
found 14 hours ago
Select Alaska Airlines flight, departing Fri, Jan 30 from Seattle to Quito, returning Thu, Feb 5, priced at $541 found 14 hours ago
Alaska Airlines
Fri, Feb 20 - Thu, Feb 26
SEA
Seattle
UIO
Quito
$568 Roundtrip, found 3 hours ago
$568
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Fri, Feb 20 from Seattle to Quito, returning Thu, Feb 26, priced at $568 found 3 hours ago
Alaska Airlines
Sun, Jan 18 - Wed, Jan 28
SEA
Seattle
UIO
Quito
$570 Roundtrip, found 11 hours ago
$570
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sun, Jan 18 from Seattle to Quito, returning Wed, Jan 28, priced at $570 found 11 hours ago
United
Sun, Jan 18 - Wed, Jan 28
SEA
Seattle
UIO
Quito
$597 Roundtrip, found 11 hours ago
$597
Roundtrip
found 11 hours ago
Select United flight, departing Sun, Jan 18 from Seattle to Quito, returning Wed, Jan 28, priced at $597 found 11 hours ago
avianca
Sun, Sep 6 - Sat, Sep 12
SEA
Seattle
UIO
Quito
$676 Roundtrip, found 1 day ago
$676
Roundtrip
found 1 day ago
Select avianca flight, departing Sun, Sep 6 from Seattle to Quito, returning Sat, Sep 12, priced at $676 found 1 day ago
Delta
Tue, Apr 14 - Mon, Apr 27
SEA
Seattle
UIO
Quito
$775 Roundtrip, found 1 hour ago
$775
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Apr 14 from Seattle to Quito, returning Mon, Apr 27, priced at $775 found 1 hour ago
American Airlines
Tue, Feb 17 - Thu, Feb 26
SEA
Seattle
UIO
Quito
$779 Roundtrip, found 3 hours ago
$779
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Tue, Feb 17 from Seattle to Quito, returning Thu, Feb 26, priced at $779 found 3 hours ago

Find the cheapest month to fly from Seattle (SEA) to Quito (UIO)

October is typically the cheapest month to fly

From $491 - $830 per traveler.

Alternative airports near Quito

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

Select flight to Mariscal Sucre Intl. UIO. Cheapest and Closest option available. Average driving time to city center is 33 minutes. Flights from $715
UIO
Mariscal Sucre Intl.
CheapestClosest
Average driving time to city center33 min
Flights from $715

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Mariscal Sucre Intl. Airport (UIO) cost?
Snag a cheap one-way flight from $204 or cheap return flight from $509 from Seattle - Tacoma Intl. Airport (SEA) to Mariscal Sucre Intl. Airport (UIO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Mariscal Sucre Intl. Airport (UIO)?
The cheapest month to fly from SEA to UIO is January, when demand is low. Off-peak months are usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Mariscal Sucre Intl. Airport (UIO)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll take you from SEA to UIO. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Mariscal Sucre Intl. Airport (UIO)?
You'll need to book a flight with a layover when traveling from Seattle - Tacoma Intl. Airport (SEA) to Mariscal Sucre Intl. Airport (UIO). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from SEA to UIO?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on various factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Mariscal Sucre Intl. Airport (UIO)?
To avoid possible delays on the Seattle - Tacoma Intl. Airport (SEA) to Mariscal Sucre Intl. Airport (UIO) route, travel before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Mariscal Sucre Intl. Airport (UIO) last-minute?
Last-minute fares from SEA to UIO are usually more expensive. To lock in the cheapest rates, start searching for flights well ahead of time. That said, if your travel plans are flexible, it's possible to find a cheap ticket right before you leave.
Is it cheaper to book a SEA to UIO flight and hotel package?
Booking a SEA to UIO flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our extensive range of accommodations and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Mariscal Sucre Intl. Airport (UIO)?
Typically, you can modify or cancel your SEA to UIO flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you need more details, visit our Customer Service portal.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Mariscal Sucre Intl.
Airlines serving
Air Canada, American Airlines, Copa, Delta, LATAM Airlines Group, United, avianca
Roundtrip price
$508
Distance
4211 mi

Book with confidence

Seattle to Quito Flights

The cheapest times to fly from Seattle to Quito

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Quito are during the month of January. You can find some of the cheapest flights from Seattle to Quito with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Quito

Sunday is one of the best days to book for cheap flights from Seattle to Quito: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Quito

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Quito in 2025. You can also book with separate airlines for your outbound and return journeys, from $204 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Quito flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Quito airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Quito Flights

Explore a world of travel with Expedia

*Available to One Key members.