IAD - MEX

$224 Find Cheap Flights from Washington Dulles Airport to Mexico City

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 City departing on 1/10. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Mexico City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Mexico City.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Mexico City.
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Everything you should know

Cheapest round-trip
$424
Overall average: $582
Frontier
Thu 2/19Sun 2/22
IAD - MEX • 1 stop
Cheapest non-stop
$472
Typical prices: $535-$753
Delta
Wed 1/7Wed 1/14
IAD - MEX • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts
AM Plus offers priority boarding and extra legroom.
Expect 10-40 minutes at immigration in Mexico City.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $424 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 15% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
June
Cheapest • 8% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Mexico City!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Dulles Intl to Mexico City (IAD-MEX)

 
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 City 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 City

Thu, Feb 19 - Sun, Feb 22
Frontier Logo
3:37 pm - 7:45 pmIAD-MEX
29h 08m1 stop
Frontier Logo
6:10 pm - 4:32 pmMEX-IAD
21h 22m2 stops
$424Frontier
Find Deal
Mon, Feb 9 - Fri, Feb 27
Frontier Logo
10:49 am - 10:30 pmIAD-MEX
12h 41m1 stop
Frontier Logo
10:05 am - 8:53 pmMEX-IAD
9h 48m1 stop
$428Frontier
Find Deal
Fri, Nov 28 - Wed, Dec 3
Multiple Airlines Logo
8:35 am - 7:45 pmIAD-MEX
12h 10m1 stop
Multiple Airlines Logo
7:30 pm - 6:18 pmMEX-IAD
21h 48m2 stops
$430Multiple Airlines
Find Deal
Wed, Jan 14 - Tue, Jan 27
Multiple Airlines Logo
6:00 am - 10:00 pmIAD-MEX
17h 00m2 stops
Multiple Airlines Logo
12:55 pm - 10:35 pmMEX-IAD
8h 40m1 stop
$431Multiple Airlines
Find Deal
Mon, Jan 19 - Mon, Jan 26
Multiple Airlines Logo
6:00 am - 10:00 pmIAD-MEX
17h 00m2 stops
Multiple Airlines Logo
10:05 am - 8:53 pmMEX-IAD
9h 48m1 stop
$432Multiple Airlines
Find Deal
Thu, Jan 15 - Thu, Jan 29
Multiple Airlines Logo
10:49 am - 10:30 pmIAD-MEX
12h 41m1 stop
Multiple Airlines Logo
10:35 am - 12:10 amMEX-IAD
12h 35m1 stop
$433Multiple Airlines
Find Deal
Fri, Jan 23 - Thu, Jan 29
Frontier Logo
5:20 pm - 10:45 amIAD-MEX
18h 25m2 stops
Frontier Logo
7:00 am - 2:42 pmMEX-IAD
30h 42m2 stops
$434Frontier
Find Deal
Fri, Jan 16 - Mon, Jan 26
Multiple Airlines Logo
6:00 am - 10:00 pmIAD-MEX
17h 00m2 stops
Multiple Airlines Logo
10:05 am - 8:53 pmMEX-IAD
9h 48m1 stop
$435Multiple Airlines
Find Deal
Fri, Dec 5 - Fri, Jan 16
Multiple Airlines Logo
5:45 am - 9:45 pmIAD-MEX
17h 00m2 stops
Multiple Airlines Logo
11:10 am - 9:33 pmMEX-IAD
9h 23m1 stop
$436Multiple Airlines
Find Deal
Thu, Jan 22 - Wed, Jan 28
Frontier Logo
5:20 pm - 10:45 amIAD-MEX
18h 25m2 stops
Frontier Logo
7:00 am - 4:32 pmMEX-IAD
32h 32m2 stops
$438Frontier
Find Deal
Booking Insights

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

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

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

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

For Washington Dulles Airport to Mexico City, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Mexico City back to Washington Dulles Airport, the best deals are generally found on Wednesday, with Saturday being the most expensive.

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

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 City, 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 City is June, where tickets cost $535 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $711 and $602 respectively.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $571 on average.

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

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 City, 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 City, you should book around 4 weeks before departure, which saves you about 15% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Expert advice

Expert advice for your flight from Dulles Intl to Mexico City

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-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.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Aeromexico

Clase Premier features lie-flat beds on the 787-9, ideal for comfort and privacy.


AM Plus offers priority boarding and extra legroom, enhancing the economy experience.

Delta

Delta One offers lie-flat seats with privacy on select aircraft, enhancing comfort on longer flights.


Sky Priority offers priority check-in for premium cabin passengers, saving time at the airport.

United Airlines

United Polaris provides lie-flat seats with aisle access, perfect for long-haul comfort.


Priority Boarding in Zone 2 helps avoid gate-checking your carry-on.

Airports
IAD

For a smooth departure from Dulles, use the AeroTrain for quick access between terminals. Check an airport map to plan your route efficiently.

MEX

Upon arrival at MEX, expect immigration to take 10-40 minutes. Baggage carts are available, but porters can assist you to the taxi area for a tip.

Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Aeromexico and MEX

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Delta, United Airlines and IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more

Good to know

Low seasonSeptember
Cheapest flight$224
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Washington Dulles Airport to Mexico City

When to book flights from Dulles Intl to Mexico City

Are your dates flexible? Find out the best times to travel from Dulles Intl to Mexico City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Mexico City flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Mexico City was $223 for a one-way ticket and $424 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Mexico City?

    Yes

  • Which airports will I be using when flying from Washington Dulles Airport to Mexico City?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Mexico City, also known as Mexico City Benito Juarez.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Mexico City?

    JetBlue, Delta, Air Canada, and Aeromexico offer inflight Wi-Fi service on the Washington Dulles Airport to Mexico City flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Mexico City?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Washington Dulles Airport to Mexico City flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to Mexico City?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Mexico City, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Washington Dulles Airport to Mexico City?

    There are nonstop flights from Washington Dulles Airport to Mexico City on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Mexico City, Delta or Aeromexico?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Mexico City are Delta and Aeromexico. With an average price for the route of $587 and an overall rating of 7.9, Delta is the most popular choice. Aeromexico is also a great choice for the route, with an average price of $560 and an overall rating of 7.4.

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

    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 City.

  • 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 City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Mexico City from Washington Dulles Airport 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 City?

    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 to Mexico City with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and MEX can sometimes prove cheaper using this method.

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

    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 to Mexico City from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Mexico City

  • Looking for a cheap flight? 25% of our users found flights on this route for $253 or less one-way and $535 or less round-trip.

Prefer to fly direct from Washington Dulles Airport to Mexico City?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to Mexico City Benito Juarez.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Mexico City Benito Juarez Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Mexico City Benito Juarez

Monday

Aeromexico, United Airlines

Aeromexico, United Airlines

Tuesday

Aeromexico, United Airlines

Aeromexico, United Airlines

Wednesday

Aeromexico, United Airlines

Aeromexico, United Airlines

Thursday

Aeromexico, United Airlines

Aeromexico, United Airlines

Friday

Aeromexico, United Airlines

Aeromexico, United Airlines

Saturday

Aeromexico, United Airlines

Aeromexico, United Airlines

Sunday

Aeromexico, United Airlines

Aeromexico, United Airlines

See more direct flights

Direct returns

Mexico City Benito Juarez to Washington, D.C. Dulles Intl

Monday

Aeromexico, United Airlines

Aeromexico, United Airlines

Tuesday

Aeromexico, United Airlines

Aeromexico, United Airlines

Wednesday

Aeromexico, United Airlines

Aeromexico, United Airlines

Thursday

Aeromexico, United Airlines

Aeromexico, United Airlines

Friday

Aeromexico, United Airlines

Aeromexico, United Airlines

Saturday

Aeromexico, United Airlines

Aeromexico, United Airlines

Sunday

Aeromexico, United Airlines

Aeromexico, United Airlines

See more direct flights

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

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Mexico City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Mexico City? 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.
7.9
DeltaOverall score based on 8009 reviews
8.5Crew
7.9Comfort
7.9Entertainment
7.3Food
8.1Boarding
Airline reviews

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

10.0 ExcellentJacky, Nov 2025JFK - LHR
Read more Delta reviews

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

Aeroméxico cancelled my ticket without advice AND It make a last minute mess in my intinerary, no solving my situation, bad advice and bad customer service

The ground staff were not as friendly and nice to the passengers as the air crew. Flight attendants, cockpit crew were great and very nice to everyone on board.

My flight was delayed, then I got transferred to a new flight that was also delayed- which wasn’t Aeromexico’s fault, it was because of weather conditions. Most of the crew was very nice and patient, except for one or two flight attendants who were rude. The entertainment wasn’t on, so all the screens were off.

My wife's entertainment system did not work. Payed for flight upgrade but did not receive advertised "free WiFi".

Annoying that we had to go to departures and get boarding passes. Should allow us to be booked all the way through, this is the only airline i have this problem with in MEX. Late boarding and take off

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

The airplane was an old airplane, seats were very uncomfortable and very little space, they changed my seat and that was no option to get back into my seat even when I was traveling a senior who required assistance.

This is not a low cost airline. Stop acting like o e.

Aeromexico crew made me check my hand luggage in the door of the plane. As soon as I reach Mexico City, I notice that my luggage was opened and 8 games of Nintendo Switch were stolen (700 dllrs value aprox) (the console was there) but the games were stolen. I am very dissapointed of Aeromexico and all the crew. Instead of being a good trip, It was a sad trip

Ok. But we arrived to a remote terminal which meant that a bus had to take us to the terminal building

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

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

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

Flight was delayed again and again ultimately almost three hours getting us to our location at close to midnight by the time we got in and out of airport to destination. I had taken time off work to enjoy an evening at destination and that was now wasted

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

Pitch was very small. Knees were on the seat back in front of me.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

I couldnt recline the seat. Other than that crew was very attentive and helpful. Thsnk you

I had to go to the boarding counter for them to enter my return flight as it’s not with Avianca. There was a long queue as there were lots of people being called to the counter.

This low cost airline looks and fells more like a local bus. In a 6 hour flight not being able to recline a seat is torture. The only thing available with no charge is a glass of water provided by, mostly, rude staff. Our luggage didn’t arrive

Horrible experience. Flight cancelled. Arrived at destination 12 hs later. No one gave us an answer or any information. Very very poor service. We won’t ever travel again with Avianca

Did not fly with Pakistan International Airlines. Have never flown with Pakistan International Airlines.

Boarding, crew were excellent, food was ok and entertainment need to improve

The seats were uncomfortable and barely reclined at all. Very little leg room despite being business class. The crew was friendly and the food was good. Had to use my own phone for in-flight entertainment.

No food, terms when selling are not clear. To pricy for the service in general

Avianca is not what it used to be. So disappointing

why did we have to go through security mid flight

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

Information on your arrival and departure airports