$264 Cheap avianca flights Quito (UIO) to Washington (IAD)

View $264 flight on Sun, Sep 7, 2025Opens in a new window

$264 Cheap avianca flights Quito (UIO) to Washington (IAD)

Prices were available within the past 7 days and start at $264 for one-way flights and $394 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

avianca
Wed, Jul 16 - Mon, Aug 11
UIO
Quito
IAD
Washington
$394 Roundtrip, found 3 days ago
$394
Roundtrip
found 3 days ago
Select avianca flight, departing Wed, Jul 16 from Quito to Washington, returning Mon, Aug 11, priced at $394 found 3 days ago
avianca
Thu, Jul 10 - Mon, Jul 14
UIO
Quito
IAD
Washington
$395 Roundtrip, found 4 days ago
$395
Roundtrip
found 4 days ago
Select avianca flight, departing Thu, Jul 10 from Quito to Washington, returning Mon, Jul 14, priced at $395 found 4 days ago
avianca
Tue, Sep 16 - Sat, Sep 20
UIO
Quito
IAD
Washington
$398 Roundtrip, found 5 days ago
$398
Roundtrip
found 5 days ago
Select avianca flight, departing Tue, Sep 16 from Quito to Washington, returning Sat, Sep 20, priced at $398 found 5 days ago
avianca
Wed, Jul 23 - Sun, Aug 17
UIO
Quito
IAD
Washington
$402 Roundtrip, found 5 days ago
$402
Roundtrip
found 5 days ago
Select avianca flight, departing Wed, Jul 23 from Quito to Washington, returning Sun, Aug 17, priced at $402 found 5 days ago
avianca
Tue, Sep 16 - Sat, Sep 20
UIO
Quito
IAD
Washington
$404 Roundtrip, found 5 days ago
$404
Roundtrip
found 5 days ago
Select avianca flight, departing Tue, Sep 16 from Quito to Washington, returning Sat, Sep 20, priced at $404 found 5 days ago
avianca
Mon, Aug 11 - Mon, Aug 25
UIO
Quito
IAD
Washington
$406 Roundtrip, found 5 days ago
$406
Roundtrip
found 5 days ago
Select avianca flight, departing Mon, Aug 11 from Quito to Washington, returning Mon, Aug 25, priced at $406 found 5 days ago
Flights from Quito (UIO) to Washington (IAD)
Origin airport
Mariscal Sucre Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, American Airlines, Copa, Delta, LATAM Airlines Group, United, avianca
Popular airline
Copa
Distance
2700 mi

Frequently asked questions

How much is an AVIANCA flight from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD)?
Make use of the "Price (lowest to highest)" filter on Expedia to find cheap AVIANCA return flights from $394 from UIO to IAD. Affordable one-way options from $264 are also available.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from UIO to IAD with AVIANCA?
AVIANCA flights to Washington are generally more affordable in the low-season months of January and February. Whether you're after a one-way or a return ticket, you could score a better deal then.
What is the cheapest time to book flights from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD) with AVIANCA?
To discover cheap flights from UIO to IAD with AVIANCA, start searching about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another useful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does AVIANCA fly nonstop from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD)?
Fill in your dates, hit search and use the "Nonstop" filter on Expedia to find any direct flights from UIO to IAD with AVIANCA or another carrier.
What is the earliest AVIANCA flight from UIO to IAD?
To find the earliest departures from UIO to IAD with AVIANCA, filter your search by "Early Morning" and "Morning." Choosing an early flight usually means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does AVIANCA fly into in Washington?
Washington Dulles Intl. Airport (IAD) is the main Washington gateway for AVIANCA flights from Mariscal Sucre Intl. Airport (UIO).
What kind of luggage can I take on an AVIANCA flight from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD)?
On a standard economy flight with AVIANCA from UIO to IAD, you can bring 1 checked-in bag up to 50 lb with dimensions not exceeding 62 inches in total. For carry-on, you're allowed 1 cabin bag weighing up to 22 lb and measuring no more than 45 inches. Weight and size allowances can differ based on your cabin class and airfare type. To make sure you don't get caught with extra fees at the terminal, check your AVIANCA booking or go to the airline's website before you start packing.
Why fly with AVIANCA from UIO to IAD?
With a rewarding loyalty program, AVIANCA is a top choice for many travelers heading from UIO to IAD. Plus, as an Avianca LifeMiles and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my AVIANCA flight from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD)?
Changes are generally free within 24 hours of booking, but your airline may charge a fee after that time. For more details about altering your flights, head to your "Trips," select your flight and click on "Manage Booking." If you want the freedom to adjust your plans without being charged, tick the "Changes included" or "No cancel fee" filter when planning your next trip.

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*Available to One Key members.