Cancún

$124+ Cheap flights from Dulles Intl (IAD) to Cancún (CUN)

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CUN
Aug 19 — Aug 261
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Cancun are usually found in September or May, booked 24 days in advance, depart on a Sunday or Monday and return on a Saturday

Cheap flight deals from Dulles Intl to Cancún

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Cancún (CUN). 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 August 14, 2025.

Round-trip from

$275
(American Airlines)

One-way from

$124
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$608

Good round-trip deal

$470 or less

Good one-way deal

$173 or less
From Washington, D.C. Dulles Intl to Cancun
One-way flight from Washington, D.C. Dulles Intl to Cancun
Highest demand for flights based on searches. 7% potential increase in price ($51 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Cancun.
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Cancun.

Find flight deals from Dulles Intl to Cancún

Cheapest flights from Dulles Intl to Cancún
Explore the most affordable flight options available from Dulles Intl to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 11/1512:46 pmIAD - CUN
Nonstop3h 54mUnited Airlines
Thu 11/2012:35 pmCUN - IAD
Nonstop3h 20mUnited Airlines
Deal found 8/14$275
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/257:44 amIAD - CUN
1 stop6h 36mAmerican Airlines
Thu 8/284:20 pmCUN - IAD
1 stop6h 39mAmerican Airlines
Deal found 8/13$276
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/88:09 pmIAD - CUN
2 stops15h 54mAmerican Airlines
Wed 11/121:16 pmCUN - IAD
1 stop9h 51mAmerican Airlines
Deal found 8/14$280
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 9/138:34 amIAD - CUN
Nonstop3h 36mUnited Airlines
Sat 9/2012:50 pmCUN - IAD
1 stop7h 27mUnited Airlines
Deal found 8/14$281
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/275:27 pmIAD - CUN
1 stop17h 09mMultiple Airlines
Sat 10/44:12 pmCUN - IAD
Nonstop3h 16mMultiple Airlines
Deal found 8/12$282
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/118:25 pmIAD - CUN
1 stop19h 54mAmerican Airlines
Wed 10/153:05 pmCUN - IAD
2 stops16h 49mAmerican Airlines
Deal found 8/14$286
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/168:19 pmIAD - CUN
2 stops14h 36mAmerican Airlines
Wed 8/202:45 pmCUN - IAD
2 stops16h 57mAmerican Airlines
Deal found 8/14$290
This Booking.com deal was found by Cheapflights users on 8/13. 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.
Fri 10/173:10 pmIAD - CUN
1 stop24h 21mFrontier
Sat 10/2511:26 amCUN - IAD
1 stop8h 18mFrontier
Deal found 8/13$292
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Sun 8/175:16 pmIAD - CUN
1 stop9h 13mAeromexico
Sat 9/66:01 amCUN - IAD
1 stop8h 11mAeromexico
Deal found 8/14$295
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/276:25 amIAD - CUN
1 stop14h 40mAmerican Airlines
Sat 10/47:50 amCUN - IAD
1 stop7h 57mAmerican Airlines
Deal found 8/14$296
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Mon 11/36:30 amIAD - CUN
1 stop7h 03mUnited Airlines
Fri 11/74:51 pmCUN - IAD
1 stop6h 53mUnited Airlines
Deal found 8/14$297

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Cancún 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 August 14, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Cancún that are best for you.

Fly from

Dulles Intl

Fly to

Cancún

Route

Depart

Return

Price

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Mon 10/27

6:00 am-11:25 am

1 stop6h 25m

Cancun

Fri 10/31

11:28 am-8:51 pm

1 stop8h 23m

$276

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Mon 11/3

6:30 am-1:33 pm

1 stop7h 03m

Cancun

Wed 11/5

4:51 pm-11:44 pm

1 stop6h 53m

$276

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Sat 9/20

8:34 am-11:10 am

Nonstop3h 36m

Cancun

Thu 9/25

4:12 pm-8:28 pm

Nonstop3h 16m

$296

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Sat 9/13

8:34 am-11:10 am

Nonstop3h 36m

Cancun

Wed 9/24

11:14 am-3:30 pm

Nonstop3h 16m

$296

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Sat 9/27

12:35 pm-3:06 pm

Nonstop3h 31m

Cancun

Tue 9/30

4:12 pm-8:28 pm

Nonstop3h 16m

$296

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Sat 9/6

6:35 am-2:28 pm

1 stop8h 53m

Cancun

Thu 9/11

11:14 am-3:30 pm

Nonstop3h 16m

$301

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Tue 9/16

8:35 am-2:37 pm

1 stop7h 02m

Cancun

Sat 9/20

11:14 am-3:30 pm

Nonstop3h 16m

$301

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Sat 9/20

6:00 am-5:45 pm

2 stops12h 45m

Cancun

Sat 9/27

6:01 am-3:12 pm

1 stop8h 11m

$306

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Wed 10/29

10:11 am-8:20 pm

1 stop11h 09m

Cancun

Tue 11/4

6:00 am-2:02 pm

1 stop8h 02m

$306

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Mon 11/3

7:59 am-2:12 pm

1 stop6h 13m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 17 results
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The best insider tips for Washington, D.C. Dulles Intl Airport to Cancún flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Cancún trip
Airports
IAD

Expect long security queues at IAD, especially in the afternoon. Plan extra time for check-in and security to avoid delays.

Read more about IADby Ramsey Qubein
CUN

For a smooth arrival at CUN, prearrange transportation with your hotel to avoid taxi scams and confusion at the airport.

Read more about CUNby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on IAD and CUN

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from Dulles Intl to Cancún

Have a flexible travel schedule? Discover the best time to fly to Cancún from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Cancún

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Cancún. Price data was last updated on August 8, 2025.

Booking 24 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Cancún. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cancún (average of $360). Flying from Washington, D.C. Dulles Intl Airport to Cancún in March is currently the most expensive (average of $492). 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.

What is the cheapest time of day to fly from IAD to CUN?

Find hourly flight availability from Dulles Intl to Cancún. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Cancún is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 49% on airfare.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Cancún?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Cancún. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Cancún flight should consider departing on Sunday evenings when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Cancún?

Share of 1-stop round-trip flights from Washington, D.C. Dulles Intl Airport to Cancún chosen by Cheapflights users in the past 12 months, using the same layover each way.

Mexico City (MEX) – chosen by Cheapflights users on 56% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Cancún on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Cancún?

Average round-trip fare for 1-stop flights from Washington, D.C. Dulles Intl Airport to Cancún, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $420.

What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Cancún?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Cancún, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 6h 59m.

Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Cancún?

Average layover duration for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Cancún, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Mexico City (MEX) offer the fastest connection on this route, with an average layover time of 1h 05m.

Reviews of airlines servicing Cancún

Get insights into the airlines that provide service to Cancún. 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 Cancún. Reviews last updated August 14, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Cancún, such as Delta, Aeromexico, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good
8.0
Very good

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Cancún. 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 into for flights to Cancún from Washington, D.C. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl to Cancún, you will be flying into Cancun. Cancun (CUN) is just 8.9 mi from the center of the city. Cancun is the only Cancún airport and it handles 1 inbound flight from Washington, D.C. Dulles Intl per day. 8 airlines have flights to Cancun from Washington, D.C. Dulles Intl on a regular basis.

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

    Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Cancún is Spirit Airlines. Our recent data shows that you can find tickets from as low as $134 on this airline. Additional options worth looking into are Avianca and Volaris El Salvador, starting at $182 and $263 round-trip. Users have found that Spirit Airlines is 77% cheaper than the other options available to this destination.

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Cancún?

    On average you can expect to pay $754 for a flight from Washington, D.C. Dulles Intl Airport to Cancún. The cheapest flight overall is $118 while the most popular route, (Washington, D.C. Dulles Intl - Cancun) is currently priced at $283.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Cancún 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 Washington, D.C. Dulles Intl Airport to Cancún?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cancún (average of $360). Flying from Washington, D.C. Dulles Intl Airport to Cancún in March is currently the most expensive (average of $492). 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 Cancún?

Book flights to Cancún if you plan to visit one of these locations
Puerto Aventuras
Holbox
Punta Sam

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Alternative routes for Dulles Intl to Cancún

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from Dulles Intl to Cancún

Discover the top 8 airlines that operate flights from Dulles Intl to Cancún. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$134Average$450FlexibilityNo cancel feeOn-time65%
AviancaCheapest$182Average$459FlexibilityNo cancel feeOn-time71%
Volaris El SalvadorCheapest$263Average$352FlexibilityNo cancel feeOn-timeN/A
AeromexicoCheapest$294Average$480FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$318Average$383FlexibilityNo cancel feeOn-time62%
DeltaCheapest$320Average$530FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$408Average$617FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$460Average$633FlexibilityNo cancel feeOn-time71%

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