HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$220+ Cheap flights from Quito (UIO) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
UIO — IAD
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Quito to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Quito to Dulles Intl

Cheapest flights from Quito to Dulles Intl
Explore the most affordable flight options available from Quito to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Priceline deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/77:05 pm
UIO
-
IAD
1 stop9h 20m
Avianca
Tue 3/103:35 pm
IAD
-
UIO
1 stop9h 15m
Avianca
Deal found 1/25$348
This Copa Airlines deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/173:12 pm
UIO
-
IAD
1 stop12h 03m
Copa Airlines
Mon 3/232:18 am
IAD
-
UIO
1 stop12h 51m
Copa Airlines
Deal found 1/24$352
This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/111:35 am
UIO
-
IAD
1 stop20h 41m
United Airlines
Sun 2/226:01 am
IAD
-
UIO
1 stop18h 29m
United Airlines
Deal found 1/25$355
This Booking.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1110:05 am
UIO
-
IAD
2 stops15h 35m
Avianca
Tue 2/172:35 pm
IAD
-
UIO
1 stop18h 20m
Avianca
Deal found 1/25$356
This Avianca deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:05 pm
UIO
-
IAD
1 stop9h 20m
Avianca
Fri 2/275:45 am
IAD
-
UIO
1 stop12h 10m
Avianca
Deal found 1/24$360
This Avianca deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/410:05 am
UIO
-
IAD
2 stops15h 35m
Avianca
Wed 3/186:45 am
IAD
-
UIO
1 stop12h 10m
Avianca
Deal found 1/24$362
This Avianca deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/510:05 am
UIO
-
IAD
2 stops15h 35m
Avianca
Mon 3/94:00 am
IAD
-
UIO
2 stops14h 55m
Avianca
Deal found 1/24$363
This Kiwi.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/115:05 am
UIO
-
IAD
1 stop8h 10m
Avianca
Sat 2/214:15 pm
IAD
-
UIO
1 stop9h 45m
Avianca
Deal found 1/25$367
This Avianca deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1711:30 am
UIO
-
IAD
2 stops12h 40m
Avianca
Tue 3/243:35 pm
IAD
-
UIO
1 stop9h 15m
Avianca
Deal found 1/24$368
This Kiwi.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/115:05 am
UIO
-
IAD
1 stop8h 10m
Avianca
Sun 2/225:45 am
IAD
-
UIO
1 stop12h 10m
Avianca
Deal found 1/25$370
This Kiwi.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1110:05 am
UIO
-
IAD
2 stops15h 35m
Avianca
Mon 2/232:35 pm
IAD
-
UIO
1 stop10h 45m
Avianca
Deal found 1/25$371

Find flight deals from Quito to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Quito (UIO) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$348
(Priceline)

One-way from

$220
(Justfly.com)

Popular in

August

Cheapest in

October

Average price

$416
Provider with most accurate pricing for Quito Mariscal Sucr-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Quito Mariscal Sucr-Washington, D.C. Dulles Intl flights.
Search Deals
From Quito Mariscal Sucr to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Quito Mariscal Sucr to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Quito to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
Use the filters below to find and compare flights from Quito to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Quito

Fly to

Dulles Intl

Route

Depart

Return

Price

QuitoWashington, D.C.

UIO - IAD

UIOIAD

Quito Mariscal Sucr

Tue 3/17

3:12 pm-4:15 am

1 stop12h 03m

Washington, D.C. Dulles Intl

Mon 3/23

2:18 am-2:09 pm

1 stop12h 51m

$352

QuitoWashington, D.C.

UIO - IAD

UIOIAD

Quito Mariscal Sucr

Tue 2/24

6:33 pm-3:15 am

1 stop8h 42m

Washington, D.C. Dulles Intl

Sun 3/1

1:18 am-12:51 pm

1 stop11h 33m

$352

QuitoWashington, D.C.

UIO - IAD

UIOIAD

Quito Mariscal Sucr

Thu 3/5

3:12 pm-3:15 am

1 stop12h 03m

Washington, D.C. Dulles Intl

Sun 3/8

2:18 am-2:09 pm

1 stop12h 51m

$352

QuitoWashington, D.C.

UIO - IAD

UIOIAD

Quito Mariscal Sucr

Thu 2/26

6:33 pm-3:15 am

1 stop8h 42m

Washington, D.C. Dulles Intl

Tue 3/3

1:18 am-12:51 pm

1 stop11h 33m

$352

QuitoWashington, D.C.

UIO - IAD

UIOIAD

Quito Mariscal Sucr

Wed 2/11

1:35 am-10:16 pm

1 stop20h 41m

Washington, D.C. Dulles Intl

Sun 2/22

6:01 am-12:30 am

1 stop18h 29m

$355

QuitoWashington, D.C.

UIO - IAD

UIOIAD

Quito Mariscal Sucr

Thu 3/5

10:05 am-1:40 am

2 stops15h 35m

Washington, D.C. Dulles Intl

Mon 3/9

4:00 am-5:55 pm

2 stops14h 55m

$363

QuitoWashington, D.C.

UIO - IAD

UIOIAD

Quito Mariscal Sucr

Wed 2/11

1:35 am-10:16 pm

1 stop20h 41m

Washington, D.C. Dulles Intl

Mon 2/23

6:03 am-12:30 am

1 stop18h 27m

$371

QuitoWashington, D.C.

UIO - IAD

UIOIAD

Quito Mariscal Sucr

Mon 3/30

7:25 am-10:44 pm

1 stop14h 19m

Washington, D.C. Dulles Intl

Sun 4/5

6:00 am-5:00 am

1 stop24h 00m

$384

QuitoWashington, D.C.

UIO - IAD

UIOIAD

Quito Mariscal Sucr

Mon 3/30

7:25 am-10:44 pm

1 stop14h 19m

Washington, D.C. Dulles Intl

Fri 4/3

10:11 pm-11:25 pm

1 stop26h 14m

$384

QuitoWashington, D.C.

UIO - IAD

UIOIAD

Quito Mariscal Sucr

Tue 2/24

7:00 pm-11:35 am

2 stops16h 35m

Washington, D.C. Dulles Intl

Mon 3/2

6:00 am-9:35 pm

1 stop15h 35m

$391

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 18 results
1
2

Compare providers for flights from Quito to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Quito to Dulles Intl in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Quito-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Quito-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Quito-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Quito-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Quito-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Quito to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Quito with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Quito to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Quito to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Quito to Dulles Intl. Price data was last updated on January 23, 2026.

The price you pay for your flight from Quito to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Quito to Washington, D.C. Dulles Intl Airport?

Currently, March is the cheapest month in which you can book a flight from Quito to Washington, D.C. Dulles Intl Airport (average of $154). Flying from Quito to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $382). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated January 26, 2026.
Read reviews from past customers who have flown Copa Airlines and Avianca from Quito to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,558 reviews

Comfort

7.4

Entertainment

6.8

Food

6.8

Crew

8.1

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it
Copa Airlines
7.6
Good
1,558 reviews
Copa Airlines
7.6
Good
1,558 reviews

Comfort

7.4

Entertainment

6.8

Food

6.8

Crew

8.1

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it
Avianca
6.6
Okay
2,492 reviews
Copa Airlines
7.6
Good
1,558 reviews

Comfort

7.4

Entertainment

6.8

Food

6.8

Crew

8.1

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it

Related info for your journey

Find useful and relevant information for your journey from Quito to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Quito to Washington, D.C. Dulles Intl?

    For a flight from Quito to Washington, D.C. Dulles Intl, you will be flying from Mariscal Sucr. Quito Mariscal Sucr (UIO) is just 14.0 mi from the center of the city. Mariscal Sucr is the only Quito airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 2 airlines have flights to Washington, D.C. Dulles Intl from Quito Mariscal Sucr on a regular basis.

  • How long is the flight from Quito to Washington, D.C. Dulles Intl Airport?

    For as low as $352, Copa Airlines can have you in Washington, D.C. Dulles Intl Airport from Quito in 12h 03m. The distance from Quito to Washington, D.C. Dulles Intl Airport is about 2698 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Quito to Washington, D.C. Dulles Intl Airport round-trip?

    Currently priced at $242, Copa Airlines will fly you from Quito to Washington, D.C. Dulles Intl Airport and back. In addition to Copa Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Avianca for as low as $339. You may be able to fly from Quito to Washington, D.C. Dulles Intl Airport for 47% less than the average price by searching for these airlines.

  • Can I find deals for flights from Quito to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Quito to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Quito to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Quito to Dulles Intl.

  • Can I find deals for business class flights from Quito to Dulles Intl?

    Yes. Cheapflights offers flight deals from Quito to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Quito to Washington, D.C. Dulles Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from Quito to Washington, D.C. Dulles Intl Airport (average of $154). Flying from Quito to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $382). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Quito to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Quito to Baltimore flights
Quito to Reagan-National flights
Guayaquil to Dulles Intl flights
Guayaquil to Baltimore flights
Guayaquil to Reagan-National flights
Cuenca to Dulles Intl flights

Top 2 airlines flying from Quito to Dulles Intl

Discover the top 2 airlines that operate flights from Quito to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$242Average$534FlexibilityNo cancel feeOn-time70%
AviancaCheapest$339Average$415FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.