£115 Cheap Flights from Washington (IAD) to Cancun (CUN)

View £115 flight on Sat, 18 Jul 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at £115 for one-way flights and £240 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Sat, 18 Jul - Tue, 21 Jul
IAD
Washington
CUN
Cancun
£240 Return, found 4 days ago
£240
Return
found 4 days ago
Select Aeromexico flight, departing Sat, 18 Jul from Washington to Cancun, returning Tue, 21 Jul, priced at £240 found 4 days ago
Aeromexico
Tue, 8 Dec - Tue, 15 Dec
IAD
Washington
CUN
Cancun
£244 Return, found 3 days ago
£244
Return
found 3 days ago
Select Aeromexico flight, departing Tue, 8 Dec from Washington to Cancun, returning Tue, 15 Dec, priced at £244 found 3 days ago
Aeromexico
Fri, 10 Jul - Mon, 13 Jul
IAD
Washington
CUN
Cancun
£247 Return, found 6 days ago
£247
Return
found 6 days ago
Select Aeromexico flight, departing Fri, 10 Jul from Washington to Cancun, returning Mon, 13 Jul, priced at £247 found 6 days ago
Aeromexico
Wed, 9 Dec - Wed, 16 Dec
IAD
Washington
CUN
Cancun
£248 Return, found 3 days ago
£248
Return
found 3 days ago
Select Aeromexico flight, departing Wed, 9 Dec from Washington to Cancun, returning Wed, 16 Dec, priced at £248 found 3 days ago
Aeromexico
Sat, 18 Jul - Tue, 21 Jul
IAD
Washington
CUN
Cancun
£251 Return, found 4 days ago
£251
Return
found 4 days ago
Select Aeromexico flight, departing Sat, 18 Jul from Washington to Cancun, returning Tue, 21 Jul, priced at £251 found 4 days ago
Aeromexico
Thu, 1 Oct - Sun, 4 Oct
IAD
Washington
CUN
Cancun
£253 Return, found 5 days ago
£253
Return
found 5 days ago
Select Aeromexico flight, departing Thu, 1 Oct from Washington to Cancun, returning Sun, 4 Oct, priced at £253 found 5 days ago
Air Canada
Mon, 1 Jun - Sat, 6 Jun
IAD
Washington
CUN
Cancun
£294 Return, found 1 day ago
£294
Return
found 1 day ago
Select Air Canada flight, departing Mon, 1 Jun from Washington to Cancun, returning Sat, 6 Jun, priced at £294 found 1 day ago
avianca
Fri, 7 Aug - Fri, 14 Aug
IAD
Washington
CUN
Cancun
£704 Return, found 4 days ago
£704
Return
found 4 days ago
Select avianca flight, departing Fri, 7 Aug from Washington to Cancun, returning Fri, 14 Aug, priced at £704 found 4 days ago
Copa
Fri, 12 Jun - Tue, 16 Jun
IAD
Washington
CUN
Cancun
£861 Return, found 1 day ago
£861
Return
found 1 day ago
Select Copa flight, departing Fri, 12 Jun from Washington to Cancun, returning Tue, 16 Jun, priced at £861 found 1 day ago
Lufthansa
Fri, 11 Dec - Mon, 28 Dec
IAD
Washington
CUN
Cancun
£10,381 Return, found 1 day ago
£10,381
Return
found 1 day ago
Select Lufthansa flight, departing Fri, 11 Dec from Washington to Cancun, returning Mon, 28 Dec, priced at £10,381 found 1 day ago

Alternative airports near Cancun

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cancun Intl. CUN. Cheapest and Closest option available. Average driving time to city centre is 18 minutes. Flights from £280
CUN
Cancun Intl.
CheapestClosest
Average driving time to city centre18 min
Flights from £280

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

May is typically the cheapest month to fly

From £200 - £357 per traveller.

Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) cost?
One-way flights typically cost between $464 and $1,544 and return flights often range between $1,908 and $9,173. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
October is typically the cheapest month to fly from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.), with average round-trip fares around 1092 CAD. This is about 18% lower than the average price throughout the year. October often sees lower prices as it falls outside of peak holiday seasons, leading to reduced demand. Other cheap months to fly from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) include September and November.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
Enter IAD to CUN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
To find a cheap flight from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The best airline to fly with from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) will differ from traveler to traveler. If you like to fly early, UA offers early morning flights. If price is the most important factor, UA typically offers the lowest fares. DL offers the most daily flights from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
When planning your trip from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.), you'll find that October and September are typically the cheapest months to fly, with average round-trip flights around 1092 CAD. However, the most popular times to travel are February and December. Since there isn't an overlap between the cheapest and most popular months, you'll need to decide what's most important for your trip. If saving money is your top priority, aim for October or September. If you prefer to travel when there are plenty of flight options and a lively atmosphere, February or December might be better, though prices could be higher. This information is based on booking data from the past year.*Prices based on flights available on Expedia in the last year.
How many flights per day from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
There are approximately 2 nonstop flights per day from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.). For even more choice, look at flights that include layovers, as there are around 82 connecting flights per day. Some common connection points include Charlotte-Douglas Intl. (CLT), Hartsfield-Jackson Atlanta Intl. (ATL), and George Bush Intercontinental (IAH).
What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The earliest flight from Washington Dulles Intl. (IAD) to Cancun Intl. (CUN) typically departs at approximately 1:10 AM local time, operated by CM. This is a seasonal service active in January. An early departure like this can help maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
You'll find the most flights from Washington Dulles Intl. (IAD) to Cancun Intl. (CUN) on a Friday, with around 40 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, Delta Air Lines, and American Airlines. Fridays offer notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) are in the early morning, from 6am to 9am. About 60% of passengers prefer this time window. Many major carriers, including Delta Air Lines and United Airlines, offer flights during this window. These times work well because you can get an early start to your travel day and arrive in Cancun with plenty of time to enjoy your destination.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
Direct flights from IAD to CUN usually take about 3 hours 50 minutes, traveling roughly 1,358 miles. If you opt for a connecting flight, expect to add around 5 hours 30 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
Select the "Business class" and "First class" filters when looking for IAD to CUN flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Cancun from Washington Dulles Intl. (IAD)?
If you're planning to travel to Cancun from Washington Dulles Intl. (IAD), you can fly into Cancun Intl. (CUN) Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Charlotte-Douglas Intl. (CLT), San Diego Intl. (SAN) before reaching Cancun. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
If you booked your Washington, DC (IAD-Washington Dulles Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Cancun Intl.
Airlines serving
Aeromexico, Air Canada, Copa, Lufthansa, avianca
Return price
£239
Distance
2172 km
Average flight time
2 hours 42 mins

Book with confidence

Compare flights from Washington to Cancun easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to Cancun. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Cancun Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Washington Dulles Intl. to Cancun Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Washington Dulles Intl. (IAD) to Cancun Intl. (CUN)

The easiest way to view the best deals on flights from Washington to Cancun today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Washington Dulles Intl. to Cancun Intl. start at just £240 and range up to £10,381.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Washington and Cancun
  • booking your flight during July, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Washington to Cancun flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Washington Dulles Intl. to Cancun Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Washington to Cancun easily and book with confidence

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*Available to Expedia members.