$138 Cheap Flights from Cancun (CUN) to Washington (IAD)

View $138 flight on Thu, Dec 4, 2025Opens in a new window

Popular airlines from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Cancun to Washington (CUN-IAD)

Prices were available within the past 7 days and start at $138 for one-way flights and $254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Dec 4 - Mon, Dec 8
CUN
Cancun
IAD
Washington
$254 Roundtrip, found 4 hours ago
$254
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Dec 4 from Cancun to Washington, returning Mon, Dec 8, priced at $254 found 4 hours ago
United
Wed, Feb 18 - Tue, Feb 24
CUN
Cancun
IAD
Washington
$262 Roundtrip, found 1 day ago
$262
Roundtrip
found 1 day ago
Select United flight, departing Wed, Feb 18 from Cancun to Washington, returning Tue, Feb 24, priced at $262 found 1 day ago
American Airlines
Wed, Feb 11 - Mon, Feb 16
CUN
Cancun
IAD
Washington
$268 Roundtrip, found 18 hours ago
$268
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Wed, Feb 11 from Cancun to Washington, returning Mon, Feb 16, priced at $268 found 18 hours ago
United
Wed, Feb 18 - Tue, Feb 24
CUN
Cancun
IAD
Washington
$274 Roundtrip, found 1 day ago
$274
Roundtrip
found 1 day ago
Select United flight, departing Wed, Feb 18 from Cancun to Washington, returning Tue, Feb 24, priced at $274 found 1 day ago
United
Wed, Nov 19 - Mon, Nov 24
CUN
Cancun
IAD
Washington
$277 Roundtrip, found 1 day ago
$277
Roundtrip
found 1 day ago
Select United flight, departing Wed, Nov 19 from Cancun to Washington, returning Mon, Nov 24, priced at $277 found 1 day ago
Aeromexico
Fri, Nov 21 - Sun, Nov 30
CUN
Cancun
IAD
Washington
$278 Roundtrip, found 2 days ago
$278
Roundtrip
found 2 days ago
Select Aeromexico flight, departing Fri, Nov 21 from Cancun to Washington, returning Sun, Nov 30, priced at $278 found 2 days ago
American Airlines
Thu, Dec 4 - Mon, Dec 8
CUN
Cancun
IAD
Washington
$279 Roundtrip, found 4 hours ago
$279
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Thu, Dec 4 from Cancun to Washington, returning Mon, Dec 8, priced at $279 found 4 hours ago
United
Thu, Nov 13 - Sat, Nov 29
CUN
Cancun
IAD
Washington
$280 Roundtrip, found 5 days ago
$280
Roundtrip
found 5 days ago
Select United flight, departing Thu, Nov 13 from Cancun to Washington, returning Sat, Nov 29, priced at $280 found 5 days ago
Delta
Thu, Oct 30 - Mon, Nov 3
CUN
Cancun
IAD
Washington
$310 Roundtrip, just found
$310
Roundtrip
just found
Select Delta flight, departing Thu, Oct 30 from Cancun to Washington, returning Mon, Nov 3, priced at $310 just found
Air Canada
Thu, Oct 30 - Wed, Nov 5
CUN
Cancun
IAD
Washington
$370 Roundtrip, found 2 hours ago
$370
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Thu, Oct 30 from Cancun to Washington, returning Wed, Nov 5, priced at $370 found 2 hours ago

Find the cheapest month to fly from Cancun (CUN) to Washington (IAD)

October is typically the cheapest month to fly

From $214 - $528 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. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $376
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $376
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
Roundtrip price
$253
Distance
1358 mi
Average flight time
4 hours 16 mins

Cancun to Washington Flights

The cheapest times to fly from Cancun 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 Cancun to Washington are during the month of December. You can find some of the cheapest flights from Cancun to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cancun to Washington

Sunday is one of the best days to book for cheap flights from Cancun 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 Cancun 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 Cancun to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $138 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 Cancun 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 Cancun 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 Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD) cost?
Snag a cheap one-way flight from $138 or cheap return flight from $254 from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from CUN to IAD is December, when demand is low. Off-peak months are usually when better flight deals are available between these airports.
Which airlines fly direct from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
When flying out of Cancun Intl. Airport (CUN), you can board a nonstop flight to Washington Dulles Intl. Airport (IAD) with United Airlines.
What is the cheapest airline that flies from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from CUN to IAD. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
When flying out of Cancun Intl. Airport (CUN), you can take your pick from an average of 2 daily nonstop flights to Washington Dulles Intl. Airport (IAD).
What are the most popular departure times for flights from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
More people fly between CUN and IAD at 12 PM than at any other time. Looking to skip the crowds? Try choosing a quieter departure window and you're likely to save on your fare as well.
What day of the week has the most flights from CUN to IAD?
Depart on a Friday if you're after the best selection of flights from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
The first flight of the day leaving from Cancun Intl. Airport (CUN) is at around 12:28PM UTC-5. Catch this flight and you'll touch down at Washington Dulles Intl. Airport (IAD) at approximately 3:45PM UTC-5. The entire trip takes 3h 17m.
How long does it take to fly from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
Flights from CUN to IAD have an average travel time of 3 hours and 17 minutes. The total distance between these two airports is 1,350 mi.
What airline has the least delays from CUN to IAD?
Consider traveling with United Airlines if you'd like to fly straight from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD) without any holdups. This airline has the best track record for punctuality, with an on-time score of 88%. Want to be notified if anything changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
To avoid potential delays on the Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD) route, travel before 3 PM. Departures after this time are 22% more likely to be canceled.**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.
What airports do you fly into for Washington from Cancun Intl. Airport (CUN)?
If you're taking a direct flight from Cancun Intl. Airport (CUN) to Washington, you'll come into land at either Washington Dulles Intl. Airport (IAD) or Baltimore Washington Intl. Thurgood Marshall Airport (BWI).
Is it cheaper to buy a plane ticket from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your plane ticket from CUN to IAD right before your journey is usually more expensive. However, if there's some wiggle room with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a CUN to IAD flight and hotel package?
You'll typically save money by securing a CUN to IAD flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your ideal flights and accommodations, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD)?
Generally, it's possible to cancel or reschedule your CUN to IAD flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.