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

View $138 flight on Wed, Nov 12, 2025Opens in a new window

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

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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 $253 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 15 - Sun, Oct 19
CUN
Cancun
IAD
Washington
$253 Roundtrip, found 13 hours ago
$253
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Oct 15 from Cancun to Washington, returning Sun, Oct 19, priced at $253 found 13 hours ago
United
Wed, Jul 16 - Sun, Oct 12
CUN
Cancun
IAD
Washington
$258 Roundtrip, found 1 day ago
$258
Roundtrip
found 1 day ago
Select United flight, departing Wed, Jul 16 from Cancun to Washington, returning Sun, Oct 12, priced at $258 found 1 day ago
United
Wed, Oct 15 - Mon, Oct 20
CUN
Cancun
IAD
Washington
$261 Roundtrip, found 2 days ago
$261
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 15 from Cancun to Washington, returning Mon, Oct 20, priced at $261 found 2 days ago
United
Thu, Oct 9 - Mon, Oct 13
CUN
Cancun
IAD
Washington
$262 Roundtrip, found 17 hours ago
$262
Roundtrip
found 17 hours ago
Select United flight, departing Thu, Oct 9 from Cancun to Washington, returning Mon, Oct 13, priced at $262 found 17 hours ago
United
Wed, Jul 23 - Sun, Jul 27
CUN
Cancun
IAD
Washington
$263 Roundtrip, found 12 hours ago
$263
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Jul 23 from Cancun to Washington, returning Sun, Jul 27, priced at $263 found 12 hours ago
American Airlines
Wed, Oct 15 - Mon, Oct 20
CUN
Cancun
IAD
Washington
$267 Roundtrip, found 2 days ago
$267
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Oct 15 from Cancun to Washington, returning Mon, Oct 20, priced at $267 found 2 days ago
United
Wed, Jul 23 - Wed, Jul 30
CUN
Cancun
IAD
Washington
$268 Roundtrip, found 23 hours ago
$268
Roundtrip
found 23 hours ago
Select United flight, departing Wed, Jul 23 from Cancun to Washington, returning Wed, Jul 30, priced at $268 found 23 hours ago
Aeromexico
Thu, Oct 9 - Sun, Oct 12
CUN
Cancun
IAD
Washington
$277 Roundtrip, found 1 day ago
$277
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Thu, Oct 9 from Cancun to Washington, returning Sun, Oct 12, priced at $277 found 1 day ago
Delta
Sat, Oct 18 - Wed, Oct 22
CUN
Cancun
IAD
Washington
$309 Roundtrip, found 13 hours ago
$309
Roundtrip
found 13 hours ago
Select Delta flight, departing Sat, Oct 18 from Cancun to Washington, returning Wed, Oct 22, priced at $309 found 13 hours ago
Air Canada
Fri, Sep 12 - Sat, Sep 13
CUN
Cancun
IAD
Washington
$346 Roundtrip, found 2 days ago
$346
Roundtrip
found 2 days ago
Select Air Canada flight, departing Fri, Sep 12 from Cancun to Washington, returning Sat, Sep 13, priced at $346 found 2 days ago

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

September is typically the cheapest month to fly

From $273 - $497 per traveler.

Graph displaying average flight prices per month

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
$252
Distance
1358 mi
Average flight time
4 hours 25 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 October. 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?
Grab cheap return fares starting at $263 from Cancun Intl. Airport (CUN) to Washington Dulles Intl. Airport (IAD). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving CUN on July 16 2025 and touching down at IAD. The price was last updated on July 12 2025 and has not changed since.
What is the cheapest month to fly from CUN to IAD?
The cheapest flights from CUN 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.
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 CUN to IAD?
At the moment, the cheapest airline offering one-way flights from CUN to IAD is United. You can jet off on this route from $143. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from CUN on September 26 2025. Prices were last updated on July 12 2025 and have not changed since.
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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