$248 Cheap Flights from Quito (UIO) to Washington (IAD)

View $248 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Quito to Washington (UIO-IAD)

Prices were available within the past 7 days and start at $248 for one-way flights and $362 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Copa
Wed, Sep 17 - Tue, Sep 23
UIO
Quito
IAD
Washington
$362 Roundtrip, found 16 hours ago
$362
Roundtrip
found 16 hours ago
Select Copa flight, departing Wed, Sep 17 from Quito to Washington, returning Tue, Sep 23, priced at $362 found 16 hours ago
United
Tue, Oct 7 - Sun, Oct 26
UIO
Quito
IAD
Washington
$374 Roundtrip, found 5 hours ago
$374
Roundtrip
found 5 hours ago
Select United flight, departing Tue, Oct 7 from Quito to Washington, returning Sun, Oct 26, priced at $374 found 5 hours ago
Copa
Tue, Sep 23 - Tue, Oct 21
UIO
Quito
IAD
Washington
$380 Roundtrip, found 1 day ago
$380
Roundtrip
found 1 day ago
Select Copa flight, departing Tue, Sep 23 from Quito to Washington, returning Tue, Oct 21, priced at $380 found 1 day ago
United
Sat, Oct 11 - Fri, Oct 24
UIO
Quito
IAD
Washington
$389 Roundtrip, found 5 hours ago
$389
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Oct 11 from Quito to Washington, returning Fri, Oct 24, priced at $389 found 5 hours ago
Copa
Fri, Nov 7 - Sat, Jan 24
UIO
Quito
IAD
Washington
$399 Roundtrip, found 6 days ago
$399
Roundtrip
found 6 days ago
Select Copa flight, departing Fri, Nov 7 from Quito to Washington, returning Sat, Jan 24, priced at $399 found 6 days ago
Copa
Tue, Jan 20 - Sat, Jan 31
UIO
Quito
IAD
Washington
$400 Roundtrip, found 3 days ago
$400
Roundtrip
found 3 days ago
Select Copa flight, departing Tue, Jan 20 from Quito to Washington, returning Sat, Jan 31, priced at $400 found 3 days ago
avianca
Mon, Nov 3 - Tue, Nov 18
UIO
Quito
IAD
Washington
$408 Roundtrip, found 6 days ago
$408
Roundtrip
found 6 days ago
Select avianca flight, departing Mon, Nov 3 from Quito to Washington, returning Tue, Nov 18, priced at $408 found 6 days ago
avianca
Tue, Oct 28 - Wed, Oct 29
UIO
Quito
IAD
Washington
$408 Roundtrip, found 1 day ago
$408
Roundtrip
found 1 day ago
Select avianca flight, departing Tue, Oct 28 from Quito to Washington, returning Wed, Oct 29, priced at $408 found 1 day ago
Delta
Tue, Oct 28 - Wed, Oct 29
UIO
Quito
IAD
Washington
$410 Roundtrip, found 1 day ago
$410
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Oct 28 from Quito to Washington, returning Wed, Oct 29, priced at $410 found 1 day ago
American Airlines
Fri, Oct 17 - Mon, Nov 10
UIO
Quito
IAD
Washington
$427 Roundtrip, found 7 hours ago
$427
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Oct 17 from Quito to Washington, returning Mon, Nov 10, priced at $427 found 7 hours ago

Find the cheapest month to fly from Quito (UIO) to Washington (IAD)

October is typically the cheapest month to fly

From $352 - $604 per traveler.

Graph displaying average flight prices per month

Alternative airports near Washington

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

Select flight to Ronald Reagan Washington National DCA. Closest option available. Average driving time to city center is 8 minutes. Flights from $605
DCA
Ronald Reagan Washington National
Closest
Average driving time to city center8 min
Flights from $605
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
Roundtrip price
$362
Distance
2700 mi

Quito to Washington Flights

The cheapest times to fly from Quito to Washington

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 Quito to Washington are during the month of September. You can find some of the cheapest flights from Quito to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Quito to Washington

Sunday is one of the best days to book for cheap flights from Quito to Washington: 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 Quito to Washington

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 Quito to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $248 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 Quito to Washington 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 Quito to Washington 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.

 

Frequently asked questions

How much does a flight from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD) cost?
Discover the latest flight deals from UIO to IAD 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 UIO to IAD?
The cheapest flights from UIO to IAD 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 UIO to IAD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from UIO to IAD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD)?
Nonstop flights from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from UIO to IAD?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD)?
Choose a flight from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD) that takes off before 3 PM to reduce the risk of cancellations and delays. Later departures have a 22% higher chance of being canceled, on average.**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 Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your ticket from UIO to IAD shortly before your trip is usually more expensive. But if you're flexible with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book an UIO to IAD flight and hotel package?
Booking an UIO to IAD flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our wide range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Mariscal Sucre Intl. Airport (UIO) to Washington Dulles Intl. Airport (IAD)?
It's usually possible to reschedule or cancel your UIO to IAD flight. However, for bookings 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 whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.