$144 Cheap Aeromexico flights Washington (IAD) to Cancun (CUN)

View $144 flight on Sun, Nov 9, 2025Opens in a new window

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$144 Cheap Aeromexico flights Washington (IAD) to Cancun (CUN)

Prices were available within the past 7 days and start at $144 for one-way flights and $281 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Sun, Oct 12 - Fri, Oct 17
IAD
Washington
CUN
Cancun
$281 Roundtrip, just found
$281
Roundtrip
just found
Select Aeromexico flight, departing Sun, Oct 12 from Washington to Cancun, returning Fri, Oct 17, priced at $281 just found
Aeromexico
Sun, Nov 9 - Fri, Nov 14
IAD
Washington
CUN
Cancun
$310 Roundtrip, just found
$310
Roundtrip
just found
Select Aeromexico flight, departing Sun, Nov 9 from Washington to Cancun, returning Fri, Nov 14, priced at $310 just found
Flights from Washington (IAD) to Cancun (CUN)
Origin airport
Washington Dulles Intl.
Destination airport
Cancun 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
2 hours 38 mins

Frequently asked questions

How much is an Aeromexico flight from Washington Dulles Intl. Airport (IAD) to Cancun Intl. Airport (CUN)?
Finding cheap one-way Aeromexico flights from IAD to CUN from $144 on Expedia couldn't be simpler — just filter by "Price (lowest to highest)." Or check out our affordable return fares from $281 for your next break.**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 IAD to CUN with Aeromexico?
Aeromexico flights to Cancun are often cheaper in the quieter months of October and September. Whether you're after a round-trip or one-way ticket, you could land a better deal then.
What is the cheapest time to book flights from Washington Dulles Intl. Airport (IAD) to Cancun Intl. Airport (CUN) with Aeromexico?
Start your search for Aeromexico flights from IAD to CUN about one month before you want to leave. The cheapest time to reserve an international flight is generally 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. Regardless of fare class and itinerary, the best day to book international airfare is usually Sunday. Friday is often the most expensive. Travelers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**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 Aeromexico fly nonstop from Washington Dulles Intl. Airport (IAD) to Cancun Intl. Airport (CUN)?
Fill in your dates, press search and check "Nonstop" on Expedia to find any direct flights from IAD to CUN with Aeromexico or another carrier.
What is the earliest Aeromexico flight from IAD to CUN?
Sort your results by "Early Morning" and "Morning" to browse the earliest flights from IAD to CUN. Jetting off early means you're 20% less likely to experience cancellations.**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 Aeromexico fly into in Cancun?
Aeromexico flights from Washington Dulles Intl. Airport (IAD) to Cancun come in to land at Cancun Intl. Airport (CUN). This is the main entry point to this destination.
What kind of luggage can I take on an Aeromexico flight from Washington Dulles Intl. Airport (IAD) to Cancun Intl. Airport (CUN)?
For checked luggage, passengers can take 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches. You can also bring 1 cabin bag in the cabin when flying standard economy from IAD to CUN with Aeromexico. This carry-on should weigh less than 22 lb and be no larger than 21 inches x 15 inches x 9 inches. Going over these limits can mean extra charges, so read Aeromexico's baggage allowance guidelines before you start packing.
Why fly with Aeromexico from IAD to CUN?
Depart from IAD to CUN with Aeromexico and you can look forward to a range of benefits including a rewarding loyalty program. When booking through Expedia as an Aeromexico Club Premier and One Key™ member, you can also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Aeromexico flight from Washington Dulles Intl. Airport (IAD) to Cancun Intl. Airport (CUN)?
You can usually modify or cancel your flight, although there may be additional fees if your booking was made more than 24 hours ago. Need flexible options? Make use of Expedia's "No cancel fee" and "Changes included" filters to find flights that won't charge you extra if you have to revise your plans. To make modifications, head to "Trips," select your flight and click on "Manage Booking" for more information.
*Available to One Key members.