$274 Cheap Flights from Mexico City (MEX) to Washington (IAD)

View $274 flight on Mon, Oct 27, 2025Opens in a new window

Popular airlines from Benito Juarez International Airport (MEX) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Mexico City to Washington (MEX-IAD)

Prices were available within the past 7 days and start at $274 for one-way flights and $419 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Aug 29 - Sat, Aug 30
MEX
Mexico City
IAD
Washington
$419 Roundtrip, found 5 days ago
$419
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Fri, Aug 29 from Mexico City to Washington, returning Sat, Aug 30, priced at $419 found 5 days ago
Frontier Airlines
Sun, Oct 5 - Sun, Oct 12
MEX
Mexico City
IAD
Washington
$421 Roundtrip, found 6 days ago
$421
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sun, Oct 5 from Mexico City to Washington, returning Sun, Oct 12, priced at $421 found 6 days ago
Frontier Airlines
Sun, Oct 5 - Fri, Oct 10
MEX
Mexico City
IAD
Washington
$433 Roundtrip, found 6 days ago
$433
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sun, Oct 5 from Mexico City to Washington, returning Fri, Oct 10, priced at $433 found 6 days ago
Frontier Airlines
Thu, Oct 2 - Sat, Oct 11
MEX
Mexico City
IAD
Washington
$436 Roundtrip, found 6 days ago
$436
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Oct 2 from Mexico City to Washington, returning Sat, Oct 11, priced at $436 found 6 days ago
Frontier Airlines
Sat, Oct 4 - Mon, Oct 13
MEX
Mexico City
IAD
Washington
$438 Roundtrip, found 6 days ago
$438
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sat, Oct 4 from Mexico City to Washington, returning Mon, Oct 13, priced at $438 found 6 days ago
Frontier Airlines
Wed, Aug 27 - Fri, Aug 29
MEX
Mexico City
IAD
Washington
$440 Roundtrip, found 5 days ago
$440
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Wed, Aug 27 from Mexico City to Washington, returning Fri, Aug 29, priced at $440 found 5 days ago
Aeromexico
Thu, Aug 28 - Mon, Sep 1
MEX
Mexico City
IAD
Washington
$486 Roundtrip, found 3 hours ago
$486
Roundtrip
found 3 hours ago
Select Aeromexico flight, departing Thu, Aug 28 from Mexico City to Washington, returning Mon, Sep 1, priced at $486 found 3 hours ago
Delta
Thu, Aug 28 - Mon, Sep 1
MEX
Mexico City
IAD
Washington
$486 Roundtrip, found 3 hours ago
$486
Roundtrip
found 3 hours ago
Select Delta flight, departing Thu, Aug 28 from Mexico City to Washington, returning Mon, Sep 1, priced at $486 found 3 hours ago
United
Thu, Aug 28 - Wed, Oct 1
MEX
Mexico City
IAD
Washington
$486 Roundtrip, found 20 hours ago
$486
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Aug 28 from Mexico City to Washington, returning Wed, Oct 1, priced at $486 found 20 hours ago
American Airlines
Fri, Sep 12 - Wed, Sep 17
MEX
Mexico City
IAD
Washington
$500 Roundtrip, found 10 hours ago
$500
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Sep 12 from Mexico City to Washington, returning Wed, Sep 17, priced at $500 found 10 hours ago

Find the cheapest month to fly from Mexico City (MEX) to Washington (IAD)

March is typically the cheapest month to fly

From $367 - $630 per traveler.

Graph displaying average flight prices per month

Alternative airports near Washington

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

Select flight to Ronald Reagan Washington National DCA. Closest option available. Average driving time to city center is 8 minutes. Flights from $634
DCA
Ronald Reagan Washington National
Closest
Average driving time to city center8 min
Flights from $634
Flights from Mexico City (MEX) to Washington (IAD)
Origin airport
Mexico City Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Aeromexico, Air Canada, American Airlines, Delta, Frontier Airlines, United, avianca
Roundtrip price
$418
Distance
1866 mi
Average flight time
6 hours 32 mins

Mexico City to Washington Flights

The cheapest times to fly from Mexico City to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Mexico City to Washington are during the month of August. You can find some of the cheapest flights from Mexico City to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Mexico City to Washington

Sunday is one of the best days to book for cheap flights from Mexico City to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Mexico City to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Mexico City to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $274 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Mexico City to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Mexico City to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD) cost?
You'll find cheap return flights from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD) starting from $486. Grab your seat and be on your way. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Delta flight leaving MEX on August 7 2025 and touching down at IAD. The price was last updated on July 14 2025 and has not changed since.
What is the cheapest month to fly from MEX to IAD?
Catch a direct flight from MEX to IAD in November to score cheaper tickets. You can find a one-way Aeromexico flight for $294 leaving on November 17 2025. This price is based on the cheapest direct flight found on Expedia for this route in the next 330 days. The price was last updated on July 14 2025 and remains unchanged.
Which airlines fly direct from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD)?
You can fly nonstop from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD) on a United Airlines flight.
What is the cheapest airline that flies from MEX to IAD?
With prices as low as $294 for a one-way journey from MEX to IAD, Aeromexico is currently the cheapest carrier for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from MEX on October 7 2025. Prices were last updated on July 14 2025 and have not changed since.
How many flights per day from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD)?
With an average of 2 direct flights that operate from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD) daily, you'll be on your way in no time.
What are the most popular departure times for flights from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD)?
Flights between MEX and IAD are busiest at 9 AM. For a more relaxed experience and potentially cheaper tickets, look for a departure outside the usual busy windows.
What day of the week has the most flights from MEX to IAD?
If you travel on a Friday, you'll get the biggest range of choices for flights from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD)?
The earliest flight departing from Mexico City Intl. Airport (MEX) is at around 8:35AM UTC-6. Catch this flight and you'll land at Washington Dulles Intl. Airport (IAD) at approximately 1:57PM UTC-5. The entire trip takes 4h 22m.
How long does it take to fly from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD)?
Typically, it takes 4 hours and 14 minutes to travel the 1,850 mi from MEX to IAD.
What airline has the least delays from MEX to IAD?
Consider booking with Aeromexico if you'd like to go straight from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD) without any delays. This airline has the best track record for punctuality, with an on-time score of 98%. Want real-time updates? You can check your flight status using the Expedia App.
What is the best time to fly from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD)?
To avoid possible delays on the Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD) route, aim to travel before 3 PM. Later flights are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from Mexico City Intl. Airport (MEX)?
Washington Dulles Intl. Airport (IAD) is the only airport in Washington with direct flights from Mexico City Intl. Airport (MEX). Explore the options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your plane ticket from MEX to IAD right before your trip is generally more expensive. However, if you're flexible with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a MEX to IAD flight and hotel package?
Compared with arranging hotels and flights separately, booking a MEX to IAD flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the hassle out of travel planning. Just pick your flights and choose from our wide range of stays, then personalize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Mexico City Intl. Airport (MEX) to Washington Dulles Intl. Airport (IAD)?
In most cases, you're able to cancel or reschedule your MEX to IAD flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like further details, go to our Customer Service portal.

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