$130 Find Cheap Flights from Washington Dulles Airport to Mexico - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Mexico departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from Dulles Intl to Mexico

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Cancún
Cancún2 stops$339
Mexico City
Mexico City1 stop$451
Guadalajara
Guadalajara1 stop$388
Puerto Vallarta
Puerto Vallarta1 stop$409
León
León2 stops$431
Monterrey
Monterrey1 stop$411
Oaxaca
Oaxaca2 stops$499
Morelia
Morelia2 stops$528
Mérida
Mérida1 stop$544
Mazatlán
Mazatlán2 stops$731
San Luis Potosí
San Luis Potosí2 stops$506
Aguascalientes
Aguascalientes1 stop$637
Ixtapa
Ixtapa1 stop$615
Veracruz
Veracruz1 stop$644
Cancún
Cancún2 stops$339
Mexico City
Mexico City1 stop$451
Guadalajara
Guadalajara1 stop$388
Puerto Vallarta
Puerto Vallarta1 stop$409
León
León2 stops$431
Monterrey
Monterrey1 stop$411
Oaxaca
Oaxaca2 stops$499
Morelia
Morelia2 stops$528
Mérida
Mérida1 stop$544
Mazatlán
Mazatlán2 stops$731
San Luis Potosí
San Luis Potosí2 stops$506
Aguascalientes
Aguascalientes1 stop$637
Ixtapa
Ixtapa1 stop$615
Veracruz
Veracruz1 stop$644

Book Cheap Dulles Intl to Mexico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Mexico that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Mexico

Tue, Sep 8 - Sun, Sep 13
Delta Logo
8:00 am - 6:39 pm
IAD
-
CUN
11h 39m
2 stops
Delta Logo
6:04 am - 3:19 pm
CUN
-
IAD
8h 15m
1 stop
$339Delta
Tue, Dec 29 - Fri, Jan 8
Delta Logo
6:59 pm - 11:15 am
IAD
-
CUN
16h 16m
1 stop
Delta Logo
5:40 pm - 12:20 am
CUN
-
IAD
6h 40m
1 stop
$341Delta
Sun, Sep 27 - Sat, Oct 3
Aeromexico Logo
4:53 pm - 1:30 am
IAD
-
CUN
9h 37m
1 stop
Aeromexico Logo
6:59 am - 11:14 pm
CUN
-
IAD
15h 15m
2 stops
$344Aeromexico
Sat, Aug 22 - Wed, Aug 26
United Airlines Logo
12:35 pm - 3:12 pm
IAD
-
CUN
3h 37mnonstop
United Airlines Logo
2:49 pm - 10:45 pm
CUN
-
IAD
6h 56m
1 stop
$345United Airlines
Fri, Aug 28 - Wed, Sep 2
American Airlines Logo
6:10 am - 1:07 pm
IAD
-
CUN
7h 57m
2 stops
American Airlines Logo
2:07 pm - 10:55 pm
CUN
-
IAD
7h 48m
2 stops
$353American Airlines
Thu, Aug 20 - Tue, Aug 25
American Airlines Logo
6:09 am - 8:03 pm
IAD
-
CUN
14h 54m
1 stop
American Airlines Logo
12:33 pm - 9:57 am
CUN
-
IAD
20h 24m
2 stops
$354American Airlines
Sun, Oct 11 - Mon, Oct 19
Aeromexico Logo
4:53 pm - 10:30 am
IAD
-
CUN
18h 37m
1 stop
Aeromexico Logo
7:38 pm - 3:19 pm
CUN
-
IAD
18h 41m
1 stop
$356Aeromexico
Sat, Aug 22 - Sat, Aug 29
Frontier Logo
7:24 pm - 2:09 pm
IAD
-
GDL
20h 45m
1 stop
Frontier Logo
11:51 am - 8:04 am
GDL
-
IAD
18h 13m
1 stop
$388Frontier
Tue, Sep 1 - Wed, Sep 9
Frontier Logo
7:24 pm - 2:09 pm
IAD
-
GDL
20h 45m
1 stop
Frontier Logo
3:34 pm - 12:40 pm
GDL
-
IAD
19h 06m
1 stop
$403Frontier
Tue, Aug 11 - Tue, Aug 18
United Airlines Logo
10:29 pm - 2:42 pm
IAD
-
CZM
17h 13m
1 stop
United Airlines Logo
3:52 pm - 11:55 pm
CZM
-
IAD
7h 03m
1 stop
$531United Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Mexico flights

Get data-powered insights and trends into flights from Dulles Intl to Mexico to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Washington, D.C. Dulles Intl Airport to Mexico flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Mexico from Washington, D.C. Dulles Intl Airport found in the last 5 days was to Cancun, at $333 round-trip. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to Cancun (CUN), and the cheapest round-trip airline ticket found on this route in the last 5 days was $333.

What is the cheapest time of day to fly to Mexico?

The average price for all round-trip flights from Washington, D.C. Dulles Intl Airport to Mexico depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Mexico is generally in the afternoon, when round-trip flights cost $558 on average. Morning departures are around 28% cheaper than evening flights, on average. The most expensive time of day to fly to Mexico is generally in the evening, which is peak travel time and where the average cost of a ticket is $829.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Mexico?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $640, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Mexico, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Mexico is August, when tickets cost $127 (return) on average. On the other hand, the most expensive months are December and April, when the average cost of round-trip tickets is $1,234 and $1,148 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Mexico?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Mexico clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Washington Dulles Airport to Mexico, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Mexico, Tuesday is the cheapest day to fly and Sunday is the most expensive.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Mexico?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Mexico, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Mexico, you should book around 3 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$130
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 45% increase in price.
Flight from Washington Dulles Airport to Santiago de Querétaro

FAQs - booking Mexico flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Mexico?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Mexico.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Mexico?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Mexico is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Mexico?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington Dulles Airport to Mexico with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Mexico?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington Dulles Airport to Mexico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Dulles Intl to Mexico

 
Need help choosing which airline to fly with from Dulles Intl to Mexico? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8452 reviews
8.5Crew
7.2Food
8.1Boarding
7.8Entertainment
7.8Comfort
Airline reviews

The gentleman at the gate I think his name is RIE was exceptional

10.0 ExcellentGireesh, Apr 2026
DCA - DTW
Read more Delta reviews

The gentleman at the gate I think his name is RIE was exceptional

With Aeromexico it ended up good but with Delta it was bad because we did everything through Delta... Showed up at the Delta terminal... It was the wrong place! Nothing ever told us to go to the Aeromexico terminal. It said "in partnership with Aeromexico" but I was never instructed to check in with them or go to their terminal. We had to haul @$$ running through the airport and almost didn't make it thanks to this poor communication. 👎🏽

Excellent!!! Aeromexico is a great airline. What was not that good is the service provided by Kayak. It is never clear and not easy to manage.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

I wouldn't say I liked being forced to check my small roller bag at the gate; too many people had bags and were in a higher boarding group.

715PM departure was 2.5 hours late. Received hotel & food voucher but after we already booked a room. Entire team just seemed like they were 2-3 steps behind in execution, and notifcations.

Staff could’ve been a little more cordial. The men were much more friendlier than the women. My daughter and I also missed the 2nd to last meal as we were sleeping but that is on us.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

Staff was rude. Didn’t give water for 2 hours. Worst service

I bought internet for the flight. Don’t waste your money. I wasn’t able to download a 1 Mb file from Google Docs during a 3-4 hr period. You can only use WhatsApp and email if you are willing to wait.

At my original departure Istanbul I was told my seat and flight was cancelled from the 3rd party. I had no seat to get to my other flights .. they charged me $481 USD to board the flight that I already paid for

All went very well. We used the AIFI Airport, such a lovely facility. Definitely needs better transportation options to get there.

From the check-in, to the flight, and arriving, everything went very smoothly. Unfortunately, when I received my baggage it was severely damaged. I have a hard shelled suitcase and it was completely smashed it. I’m not sure how this could happened but I am extremely disappointed that my belongings were damaged beyond repair and continued use.

Lousy No wheelchair. As normal at Atlanta Cheap airline Cheap aero plane. - Neither entertainment nor food on a 5 hour saga

The plane was so outdated, that it made it uncomfortable. The temperature was hot during the whole flight

Some entertainment and food/snack service would have been nice

All the pessengers should be wait in a line útil the creo and piloto are arrived.

Planes seat could be bigger very uncomfortable for tall humans.

1 hour waiting for suitcases to come out traveling in business class and food in business class is a sandwich? Avoid Aeromexico .

No space reserved for anyone who didn’t have underseat in front of them. Made it inconvenient to get the backs secured. No inflight entertainment in the 190. Bring your own! Food was excellent and we were surprised to get a full breakfast.

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

The small flights with Valet Luggage has a poor service

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Human interaction. Thought there would be more service-even a smile would have been nice.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

I missed a flight because of a delay. I had to buy a new ticket through Southwest.

Bag should not be so much money. This is how Frontier takes advantage of customers

Frontier is definitely a good option for people traveling light or on a budget - just remember to bring your own entertainment and your own headphones if you need them.

I don’t know. I’m in the airport Later y will try to have my ticket

Never offer anything to drink ☹️ Flight delayed gate moved poor communication

It’s a cheap airline. I wish they had better seats.

Seats are cramped and very uncomfortable. You have to pay for everything and it is too expensive.

Got ripped off by chatdeal. For 318 would like my money back. Neal. Did not take flight

Everything you need to know for your flight from Dulles Intl to Mexico

Information on your arrival and departure airports