Cheap Flights to Sierra from HK$1,583

View HK$1,583 flight on Sun, 5 Apr 2026Opens in a new window

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    United

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    Copa

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Cheap round-trip flights to Sierra

Prices were available within the past 7 days and start at HK$1,583 for one-way flights and HK$3,718 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Copa
Fri, 13 Mar - Thu, 19 Mar
LAX
Los Angeles
UIO
Quito
HK$3,718 Return, found 23 hours ago
HK$3,718
Return
found 23 hours ago
Select Copa flight, departing Fri, 13 Mar from Los Angeles to Quito, returning Thu, 19 Mar, priced at HK$3,718 found 23 hours ago
LATAM Airlines Group
Mon, 23 Mar - Thu, 2 Apr
SFO
San Francisco
UIO
Quito
HK$3,737 Return, found 14 hours ago
HK$3,737
Return
found 14 hours ago
Select LATAM Airlines Group flight, departing Mon, 23 Mar from San Francisco to Quito, returning Thu, 2 Apr, priced at HK$3,737 found 14 hours ago
Delta
Tue, 17 Feb - Thu, 26 Feb
JFK
New York
UIO
Quito
HK$3,766 Return, found 9 hours ago
HK$3,766
Return
found 9 hours ago
Select Delta flight, departing Tue, 17 Feb from New York to Quito, returning Thu, 26 Feb, priced at HK$3,766 found 9 hours ago
American Airlines
Mon, 23 Mar - Thu, 2 Apr
SFO
San Francisco
UIO
Quito
HK$4,889 Return, found 14 hours ago
HK$4,889
Return
found 14 hours ago
Select American Airlines flight, departing Mon, 23 Mar from San Francisco to Quito, returning Thu, 2 Apr, priced at HK$4,889 found 14 hours ago
United
Mon, 23 Mar - Thu, 2 Apr
SFO
San Francisco
UIO
Quito
HK$5,039 Return, found 14 hours ago
HK$5,039
Return
found 14 hours ago
Select United flight, departing Mon, 23 Mar from San Francisco to Quito, returning Thu, 2 Apr, priced at HK$5,039 found 14 hours ago

Frequently asked questions

How do I find cheap flights to Sierra that have flexible change policies?
At Expedia, we've been channeling our inner yogi to give you the most flexible fares on the market. Just check the "No change fee" box directly below the "Flexible change policies" heading to find your dream flight to Sierra.
Which airlines fly to Sierra?
Dig out your passport, pack your bags and select from these quality airlines that service Sierra:

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

How can I find cheap tickets to Sierra?
To get your hands on a great deal to Sierra, book well ahead of time. Also use Expedia's "flexible dates" feature at the top of your search results. This will list the cheapest prices for similar time frames. In the last seven days, HK$3,718 was the best price for a flight to Sierra.
How much is a flight to Sierra?
You could have nabbed a round-trip airfare to Sierra from anywhere between HK$3,718 and HK$12,938 in the last seven days. For one-way journeys leaving from Los Angeles (LAX), the lowest price during this period was HK$1,583.
What are the most popular airports to fly into in Sierra?
A major entryway to Sierra, around 203 flights touch down at Mariscal Sucre Intl. Airport (UIO) every month. Search for an awesome deal, reserve your fare and get set to enjoy the best of this wonderful region.
When is the cheapest time to fly to Sierra?
Depart for Sierra earlier in the week and you'll usually be rewarded with lower-priced fares. Tuesday is known for being the cheapest day to get on a plane, followed by Monday. If you'd like to avoid the priciest flights, keep clear of Saturdays.
How much is a plane ticket to Sierra?
In the last seven days, fares to Sierra varied between HK$3,718 and HK$12,938. Prices rise as your travel date nears, so land yourself an awesome deal today.
What months are the cheapest to book a flight to Sierra?
The perfect month to purchase affordable fares to Sierra is February. Remember that in the United States, an expensive time to book a ticket is the busy month of December.
Flights to Sierra information
Destination airport
Mariscal Sucre Intl.
Destination airport IATA code
UIO
Destination city name
Quito
Return price
HK$3,718

Trending flights to Sierra

Prices were available within the past 7 days and start at HK$1,583 for one-way flights and HK$3,718 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qatar Airways
Fri, 15 May - Wed, 27 May
HKG
Hong Kong SAR
UIO
Quito
HK$12,938 Return, found 1 day ago
HK$12,938
Return
found 1 day ago
Select Qatar Airways flight, departing Fri, 15 May from Hong Kong SAR to Quito, returning Wed, 27 May, priced at HK$12,938 found 1 day ago
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