HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tulum

$168+ Cheap flights from Dulles Intl (IAD) to Tulum, Mexico

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CUN
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Tulum with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Tulum are usually found in September or May, booked 29 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from Dulles Intl to Tulum

Cheapest flights from Dulles Intl to Tulum
Explore the most affordable flight options available from Dulles Intl to Tulum. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 21, 2026.

This Trip.com deal was found by Cheapflights users on 7/16. 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.
Thu 8/134:50 pm
IAD
-
CUN
1 stop9h 30m
Aeromexico
Thu 8/206:01 am
CUN
-
IAD
1 stop8h 18m
Aeromexico
Deal found 7/16$339
This Delta deal was found by Cheapflights users on 7/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:15 pm
IAD
-
CUN
1 stop5h 35m
Delta
Mon 9/146:59 am
CUN
-
IAD
2 stops16h 42m
Delta
Deal found 7/20$347
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Wed 8/266:10 am
IAD
-
CUN
1 stop6h 25m
Aeromexico
Thu 8/276:05 am
CUN
-
IAD
1 stop8h 14m
Aeromexico
Deal found 7/20$350
This Flysmarter deal was found by Cheapflights users on 7/17. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1412:30 pm
IAD
-
CUN
2 stops21h 55m
Aeromexico
Sun 11/226:06 am
CUN
-
IAD
1 stop7h 39m
Aeromexico
Deal found 7/17$352
This Delta deal was found by Cheapflights users on 7/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:00 am
IAD
-
CUN
1 stop8h 00m
Delta
Tue 9/16:04 am
CUN
-
IAD
1 stop8h 15m
Delta
Deal found 7/18$353
This United Airlines deal was found by Cheapflights users on 7/20. 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 9/148:26 am
IAD
-
CUN
Nonstop3h 39m
United Airlines
Thu 9/1711:14 am
CUN
-
IAD
Nonstop3h 18m
United Airlines
Deal found 7/20$354
This Aeromexico deal was found by Cheapflights users on 7/20. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:53 pm
IAD
-
CUN
1 stop9h 37m
Aeromexico
Sat 9/126:04 am
CUN
-
IAD
1 stop8h 15m
Aeromexico
Deal found 7/20$355
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Wed 8/264:53 pm
IAD
-
CUN
1 stop9h 37m
Aeromexico
Sat 8/298:05 am
CUN
-
IAD
1 stop7h 37m
Aeromexico
Deal found 7/20$356
This Delta deal was found by Cheapflights users on 7/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:00 am
IAD
-
CUN
1 stop12h 50m
Delta
Sat 9/196:04 am
CUN
-
IAD
1 stop8h 15m
Delta
Deal found 7/16$359
This American Airlines deal was found by Cheapflights users on 7/20. 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 8/177:57 am
IAD
-
CUN
1 stop7h 36m
American Airlines
Wed 8/2612:08 pm
CUN
-
IAD
1 stop20h 49m
American Airlines
Deal found 7/20$360
This Aeromexico deal was found by Cheapflights users on 7/17. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:10 am
IAD
-
CUN
1 stop7h 50m
Aeromexico
Tue 11/246:47 pm
CUN
-
IAD
2 stops21h 49m
Aeromexico
Deal found 7/17$361
This Delta deal was found by Cheapflights users on 7/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:47 pm
IAD
-
CUN
2 stops18h 48m
Delta
Tue 9/226:04 am
CUN
-
IAD
1 stop8h 15m
Delta
Deal found 7/16$363

Find flight deals from Dulles Intl to Tulum

Keep the following information in mind while searching for Dulles Intl to Tulum flight deals. Data was last updated July 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$339
(Trip.com)

One-way from

$168
(Flysmarter)

Popular in

December

Cheapest in

September

Average price

$554
Provider with most accurate pricing for Washington, D.C. (WAS)-Cancun flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Cancun flights.
Search Deals
From Washington, D.C. Dulles Intl to Tulum
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Tulum
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Tulum 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 July 21, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Tulum that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Mon 11/16

6:00 am-3:30 pm

1 stop9h 30m

Cancun

Wed 11/25

6:06 am-1:45 pm

1 stop7h 39m

$359

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Mon 11/2

6:00 am-12:15 pm

1 stop6h 15m

Cancun

Thu 11/5

6:06 am-1:45 pm

1 stop7h 39m

$359

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Sat 8/22

12:35 pm-3:12 pm

Nonstop3h 37m

Cancun

Sat 8/29

3:38 pm-12:44 am

1 stop8h 06m

$364

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Wed 8/26

6:10 am-11:35 am

1 stop6h 25m

Cancun

Sat 8/29

8:05 am-4:42 pm

1 stop7h 37m

$369

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Sun 9/13

6:20 am-12:56 pm

1 stop7h 36m

Cancun

Sun 9/20

8:05 am-6:21 pm

1 stop9h 16m

$369

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Sat 8/22

6:30 am-12:02 pm

1 stop6h 32m

Cancun

Thu 8/27

4:18 pm-8:36 pm

Nonstop3h 18m

$397
Quickest round-trip

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Fri 1/8

12:46 pm-4:40 pm

Nonstop3h 54m

Cancun

Wed 1/13

5:09 pm-8:29 pm

Nonstop3h 20m

$474

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Tue 9/8

8:26 am-11:05 am

Nonstop3h 39m

Cancun

Sun 9/13

7:51 am-10:59 pm

1 stop14h 08m

$484

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Fri 12/4

12:46 pm-4:40 pm

Nonstop3h 54m

Cancun

Fri 12/11

3:15 pm-5:08 am

1 stop13h 53m

$484

Washington, D.C.Cancún

IAD - CUN

IADCUN

Washington, D.C. Dulles Intl

Mon 11/9

8:17 am-12:10 pm

Nonstop3h 53m

Cancun

Mon 11/16

4:55 pm-8:19 pm

Nonstop3h 24m

$488

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Dulles Intl to Tulum

Have a flexible travel schedule? Discover the best time to fly to Tulum 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 Tulum

What is the cheapest time of day to fly from IAD to TU9?

Find hourly flight availability from Dulles Intl to Tulum. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 21, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Tulum as you normally would.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Tulum

Explore weekly flight availability from Dulles Intl to Tulum. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 21, 2026.

The most flights from IAD to TU9 are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Tulum?

Reviews of airlines servicing Tulum

Get insights into the airlines that provide service to Tulum. 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 Tulum. Reviews last updated July 21, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAeromexico from Washington, D.C. Dulles Intl Airport to Tulum. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,472 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,472 reviews
Delta
7.8
Good
8,472 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,011 reviews
Delta
7.8
Good
8,472 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Aeromexico
7.4
Good
1,475 reviews
Delta
7.8
Good
8,472 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,835 reviews
Delta
7.8
Good
8,472 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Frontier
5.6
Fair
2,779 reviews
Delta
7.8
Good
8,472 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Tulum. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Tulum?

    A quick flight from Washington, D.C. Dulles Intl Airport to Tulum can take about 3h 37m. Delta provides one of the quickest options available for as low as $364. The distance from Washington, D.C. Dulles Intl Airport to Tulum is about 1357 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Tulum is $160. On average you can expect to pay $694. The most popular route, (Washington, D.C. Dulles Intl - Cancun), can usually be booked for $340.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Tulum by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Tulum

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Cancún flights
Baltimore to Cancún flights
Reagan-National to Cancún flights
Baltimore to Cozumel flights
Dulles Intl to Cozumel flights
Baltimore to Chetumal flights

Top 6 airlines flying from Dulles Intl to Tulum

Discover the top 6 airlines that operate flights from Dulles Intl to Tulum. 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 July 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
AeromexicoCheapest$148Average$343FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$178Average$489FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$194Average$383FlexibilityNo cancel feeOn-time67%
FrontierCheapest$197Average$411FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$326Average$610FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$335Average$592FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.