$205 Cheap United flights Cancun (CUN) to Washington (IAD)

View $205 flight on Fri, Aug 29, 2025Opens in a new window

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$205 Cheap United flights Cancun (CUN) to Washington (IAD)

Prices were available within the past 7 days and start at $205 for one-way flights and $387 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Aug 29 - Tue, Sep 2
CUN
Cancun
IAD
Washington
$387 Roundtrip, found 1 day ago
$387
Roundtrip
found 1 day ago
Select United flight, departing Fri, Aug 29 from Cancun to Washington, returning Tue, Sep 2, priced at $387 found 1 day ago
United
Fri, Aug 29 - Tue, Sep 2
CUN
Cancun
IAD
Washington
$391 Roundtrip, found 1 day ago
$391
Roundtrip
found 1 day ago
Select United flight, departing Fri, Aug 29 from Cancun to Washington, returning Tue, Sep 2, priced at $391 found 1 day ago
Flights from Cancun (CUN) to Washington (IAD)
Origin airport
Cancun Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Aeromexico, Air Canada, Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Aeromexico
Distance
1358 mi
Average flight time
4 hours 25 mins

Frequently asked questions

How much is a United Airlines flight from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
Finding cheap one-way United Airlines flights from CUN to IAD from $205 on Expedia is simple --- just filter by "Price (lowest to highest)." Alternatively, check out our affordable round-trip fares from $387 for your next adventure.**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 CUN to IAD with United Airlines?
Look for one-way or return flights to Washington in January or February. You could find cheaper fares with United Airlines during these quieter months.
What is the cheapest time to book flights from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD) with United Airlines?
Landing the best United Airlines deals from CUN to IAD is typically all about timing. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. Better yet, you can pocket 17% on average by buying your fare on a Sunday compared to a Friday, which is often the most expensive day to book.* It's smart to kick off your flight search about one month before your departure date.*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 United Airlines fly nonstop from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
Yes, you can fly from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD) on any of United Airlines's 14 direct weekly flights. Apply our "Nonstop" and "Airline" filters to find the United Airlines flight that'll get you to IAD at a time that suits you.
How long does it take to fly from CUN to IAD with United Airlines?
Take off from Cancun Intl. Airport (CUN) for Washington Dulles Intl. Airport (IAD) on a direct United Airlines flight, and you'll be in the skies for approximately 3h 17m.
Which day of the week has the most United Airlines flights from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
Thursday has the most United Airlines flights from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD). With 2 daily departures, this is a great day to book something that will suit your schedule.
What is the earliest United Airlines flight from CUN to IAD?
Jetting off from CUN at 12:28PM UTC-5, the earliest United Airlines flight to IAD lands at 3:45PM UTC-5. Flying earlier in the day means you're less likely to experience cancellations.* Not a morning person? The last United Airlines flight from CUN to IAD departs at 5:10PM UTC-5 and touches down at 8:27PM UTC-5.*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 United Airlines fly into in Washington?
Washington Dulles Intl. Airport (IAD) is the main gateway for United Airlines flights from Cancun Intl. Airport (CUN) to Washington. But this airline also flies to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Make sure you check the "All Airports" option for your destination to see all available choices for your getaway to Washington.
Why fly with United Airlines from CUN to IAD?
Fly from CUN to IAD with United Airlines and you can look forward to a host of benefits starting with a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you could also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
Catch a United Airlines flight from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD), and you'll probably board a Boeing 737 MAX 9. Keep in mind though, that the aircraft type can vary depending on operational demands.
Can I change or cancel my United Airlines flight from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
Changes are typically free within 24 hours of booking, but your airline may add a charge after that time. For more details about altering your flights, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to change your plans without extra charges, apply the "Changes included" and "No cancel fee" filters when planning your next break.

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