$156 Cheap Flights to Sierra

View $156 flight on Tue, May 12, 2026Opens in a new window

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  • Delta

  • United

  • Copa

  • Air Canada

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How much is the cheapest flight to Sierra?

Prices were available within the past 7 days and start at $156 for one-way flights and $391 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Copa
Tue, Sep 8 - Thu, Sep 17
IAD
Washington
UIO
Quito
$391 Roundtrip, found 1 hour ago
$391
Roundtrip
found 1 hour ago
Select Copa flight, departing Tue, Sep 8 from Washington to Quito, returning Thu, Sep 17, priced at $391 found 1 hour ago
Delta
Thu, May 28 - Fri, May 29
IAD
Washington
UIO
Quito
$407 Roundtrip, found 14 hours ago
$407
Roundtrip
found 14 hours ago
Select Delta flight, departing Thu, May 28 from Washington to Quito, returning Fri, May 29, priced at $407 found 14 hours ago
United
Sun, Jul 12 - Tue, Jul 14
IAD
Washington
UIO
Quito
$411 Roundtrip, found 15 hours ago
$411
Roundtrip
found 15 hours ago
Select United flight, departing Sun, Jul 12 from Washington to Quito, returning Tue, Jul 14, priced at $411 found 15 hours ago
American Airlines
Thu, May 14 - Fri, Jun 5
IAD
Washington
UIO
Quito
$412 Roundtrip, found 3 hours ago
$412
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Thu, May 14 from Washington to Quito, returning Fri, Jun 5, priced at $412 found 3 hours ago
LATAM Airlines Group
Wed, Oct 14 - Tue, Oct 27
JFK
New York
UIO
Quito
$424 Roundtrip, found 1 day ago
$424
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Wed, Oct 14 from New York to Quito, returning Tue, Oct 27, priced at $424 found 1 day ago

Frequently asked questions

What month is the cheapest to fly to Sierra?
September is the cheapest month to travel to Sierra. Demand is lower then, so you're likely to snag a great deal. Booking your trip outside of public holidays and school breaks can also help you save.
Which US cities fly direct to Sierra?
Choose from 6 US destinations with direct flights to Sierra. When booking on Expedia, click on the "Direct flights only" box to compare nonstop itineraries. Fly to Sierra from any of these leading cities:

  • Miami
  • Houston
  • Fort Lauderdale
  • Atlanta
  • New York

How to find a cheap flight to Sierra?
Book your trip early to score cheap flights to Sierra. Also, consider visiting during off-peak months like March and April. If you fly on a Thursday, you can save an average of 16% compared to those departing on a Sunday.* Save time searching every day and create a price alert on the Expedia app. We'll send you a notification when fares change.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Sierra?
Being flexible about your plans can help you find last-minute offers on cheap flights to Sierra. To see all the available options, consider exploring different ticket types, changing your Sierra vacation dates, flying out of an alternative airport or using another airline.
How far in advance should I book a flight to Sierra?
For the best deals on domestic journeys, book your flight to Sierra 28 days ahead of your travel dates. For international flights, search for your ticket between two and four months in advance. This increases your chances of locking in your preferred departure dates, times and seats.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Sierra?
You can usually get cheap flights to Sierra on a Sunday. Travelers can save about 8% on average compared to those who book on a Friday, which is typically the most expensive day to book.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to Sierra?
You can choose from a range of airlines that operate services to Sierra. Some of your options are:

  • American Airlines - 60 flights to Sierra each month, including 60 flights to Mariscal Sucre Intl. Airport (UIO) per month.
  • AVIANCA - 34 flights to Sierra each month, including 34 flights to Mariscal Sucre Intl. Airport (UIO) per month.
  • United Airlines - 30 flights to Sierra each month, including 30 flights to Mariscal Sucre Intl. Airport (UIO) per month.

Can I save money by booking a Sierra trip package?
Bundle your hotel and flight and you could save hundreds of dollars. Better yet, you can add extras like car rentals and tours to your Sierra, Ecuador flight and hotel package deal. With Expedia, it's a breeze to manage all your Sierra travel plans in one place.
Can I change or cancel my flight to Sierra?
You can often cancel or change your flight to Sierra within 24 hours of booking. However, keep in mind that some fares are non-refundable. In those cases, you may receive credit for a future flight in place of a direct refund. Be sure to check the airline's terms of service in your itinerary for exact details. You can use Expedia's "No cancel fee" or "Changes included" filters during your search to find cheap flights to Sierra with flexible change policies. For more information, browse our Customer Service Portal.

*Flight schedules are subject to change.

*Available to One Key members.

 

Travel information

Destination airport
Mariscal Sucre Intl.
Destination airport IATA code
UIO
Destination city name
Quito
Roundtrip price
$391

Trending flights to Sierra

Prices were available within the past 7 days and start at $156 for one-way flights and $391 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Copa
Tue, Sep 8 - Thu, Sep 17
IAD
Washington
UIO
Quito
$391 Roundtrip, found 1 hour ago
$391
Roundtrip
found 1 hour ago
Select Copa flight, departing Tue, Sep 8 from Washington to Quito, returning Thu, Sep 17, priced at $391 found 1 hour ago

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