$348 Cheap Flights from Tri-Cities (TRI) to Quito (UIO)

View $348 flight on Mon, Apr 20, 2026Opens in a new window

Popular airlines from Tri-Cities, TN (TRI-Tri-Cities Regional) to Mariscal Sucre Intl. Airport (UIO)

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Cheap Flights from Tri-Cities to Quito (TRI-UIO)

Prices were available within the past 7 days and start at $348 for one-way flights and $678 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Aug 29 - Thu, Sep 4
TRI
Tri-Cities
UIO
Quito
$678 Roundtrip, found 2 days ago
$678
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Aug 29 from Tri-Cities to Quito, returning Thu, Sep 4, priced at $678 found 2 days ago
American Airlines
Fri, Aug 29 - Thu, Sep 4
TRI
Tri-Cities
UIO
Quito
$684 Roundtrip, found 2 days ago
$684
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Aug 29 from Tri-Cities to Quito, returning Thu, Sep 4, priced at $684 found 2 days ago
Delta
Fri, Aug 29 - Thu, Sep 4
TRI
Tri-Cities
UIO
Quito
$698 Roundtrip, found 2 days ago
$698
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Aug 29 from Tri-Cities to Quito, returning Thu, Sep 4, priced at $698 found 2 days ago
American Airlines
Fri, Aug 29 - Thu, Sep 4
TRI
Tri-Cities
UIO
Quito
$704 Roundtrip, found 2 days ago
$704
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Aug 29 from Tri-Cities to Quito, returning Thu, Sep 4, priced at $704 found 2 days ago
Delta
Fri, Aug 29 - Thu, Sep 4
TRI
Tri-Cities
UIO
Quito
$705 Roundtrip, found 2 days ago
$705
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Aug 29 from Tri-Cities to Quito, returning Thu, Sep 4, priced at $705 found 2 days ago
American Airlines
Fri, Aug 29 - Thu, Sep 4
TRI
Tri-Cities
UIO
Quito
$710 Roundtrip, found 2 days ago
$710
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Aug 29 from Tri-Cities to Quito, returning Thu, Sep 4, priced at $710 found 2 days ago
Delta
Wed, May 27 - Wed, Jun 10
TRI
Tri-Cities
UIO
Quito
$715 Roundtrip, found 2 days ago
$715
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 27 from Tri-Cities to Quito, returning Wed, Jun 10, priced at $715 found 2 days ago
American Airlines
Fri, Aug 29 - Thu, Sep 4
TRI
Tri-Cities
UIO
Quito
$721 Roundtrip, found 2 days ago
$721
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Aug 29 from Tri-Cities to Quito, returning Thu, Sep 4, priced at $721 found 2 days ago
Delta
Wed, May 27 - Wed, Jun 10
TRI
Tri-Cities
UIO
Quito
$722 Roundtrip, found 2 days ago
$722
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 27 from Tri-Cities to Quito, returning Wed, Jun 10, priced at $722 found 2 days ago
American Airlines
Fri, Aug 29 - Thu, Sep 4
TRI
Tri-Cities
UIO
Quito
$727 Roundtrip, found 2 days ago
$727
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Aug 29 from Tri-Cities to Quito, returning Thu, Sep 4, priced at $727 found 2 days ago
Flights from Tri-Cities (TRI) to Quito (UIO)
Origin airport
Tri-Cities Regional
Destination airport
Mariscal Sucre Intl.
Roundtrip price
$677
Distance
2542 mi

Frequently asked questions

How much does a flight from Tri-Cities Regional Airport (TRI) to Mariscal Sucre Intl. Airport (UIO) cost?
Discover the latest flight deals from TRI to UIO by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from TRI to UIO?
The cheapest flights from TRI to UIO are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from TRI to UIO?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from TRI to UIO. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Tri-Cities Regional Airport (TRI) to Mariscal Sucre Intl. Airport (UIO)?
You'll have to book a flight with a layover when traveling from Tri-Cities Regional Airport (TRI) to Mariscal Sucre Intl. Airport (UIO). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from TRI to UIO?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tri-Cities Regional Airport (TRI) to Mariscal Sucre Intl. Airport (UIO)?
To arrive at Mariscal Sucre Intl. Airport (UIO) on time, select a flight that leaves Tri-Cities Regional Airport (TRI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Tri-Cities Regional Airport (TRI) to Mariscal Sucre Intl. Airport (UIO) last-minute?
Booking your ticket from TRI to UIO right before your journey is generally more expensive. However, if there's some wiggle room with your departure times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a TRI to UIO flight and hotel package?
Compared with arranging hotels and flights separately, booking a TRI to UIO flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the hassle out of travel planning. Just pick your flights and select from our extensive range of hotels, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Tri-Cities Regional Airport (TRI) to Mariscal Sucre Intl. Airport (UIO)?
You can usually reschedule or cancel your TRI to UIO flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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