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Cheap flights from Washington, D.C. to Mexico City from £185

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 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — MEX
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Washington, D.C. to Mexico City

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Mexico City (MEX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 September 2025.

Round-trip from

£349

One-way from

£185

Popular in

December

Cheapest in

March

Average price

£424
Delta
  • Delta
  • 10/11-19/11
  • Nonstop
  • 9h 31m total
  • Washington, D.C. to Mexico City
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Delta
  • Delta
  • 16/11
  • Nonstop
  • 5h 09m total
  • Washington, D.C. to Mexico City
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Highest demand for flights based on searches. 6% potential increase in price (£22 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Washington, D.C. to Mexico City

Cheapest flights from Washington, D.C. to Mexico City
Explore the most affordable flight options available from Washington, D.C. to Mexico City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Mon 10/1116:01IAD - MEX
Nonstop5h 09mDelta
Wed 19/1108:40MEX - IAD
Nonstop4h 22mDelta
Deal found 17/9£349
Sun 16/1116:01IAD - MEX
Nonstop5h 09mDelta
Sun 23/1108:40MEX - IAD
Nonstop4h 22mDelta
Deal found 17/9£352
Fri 7/1116:01IAD - MEX
Nonstop5h 09mDelta
Fri 14/1108:40MEX - IAD
Nonstop4h 22mDelta
Deal found 16/9£356
Sat 8/1112:09IAD - MEX
1 stop8h 11mDelta
Mon 17/1116:35MEX - IAD
1 stop6h 43mDelta
Deal found 17/9£359
Tue 2/1216:01IAD - MEX
Nonstop5h 09mDelta
Sat 13/1213:59MEX - IAD
1 stop8h 09mDelta
Deal found 16/9£363
Wed 31/1215:26IAD - MEX
Nonstop5h 34mDelta
Wed 14/108:30MEX - IAD
Nonstop4h 19mDelta
Deal found 17/9£367
Sat 18/1017:05IAD - MEX
Nonstop4h 55mDelta
Sun 26/1006:55MEX - IAD
1 stop10h 23mDelta
Deal found 17/9£371

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to Mexico City 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 858,174 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from Washington, D.C. to Mexico City that are best for you.

Fly from

Washington, D.C.

Fly to

Mexico City

Route

Depart

Return

Price

Washington, D.C.Mexico City

IAD - MEX

IADMEX

Washington, D.C. Dulles Intl

Tue 4/11

16:01-20:10

Nonstop5h 09m

Mexico City Benito Juarez

Wed 12/11

08:40-14:02

Nonstop4h 22m

£356

Washington, D.C.Mexico City

IAD - MEX

IADMEX

Washington, D.C. Dulles Intl

Sat 10/1

15:38-19:55

Nonstop5h 17m

Mexico City Benito Juarez

Sat 17/1

08:30-13:49

Nonstop4h 19m

£356

Washington, D.C.Mexico City

IAD - MEX

IADMEX

Washington, D.C. Dulles Intl

Tue 6/1

06:10-12:36

1 stop7h 26m

Mexico City Benito Juarez

Wed 21/1

08:30-13:49

Nonstop4h 19m

£359

Washington, D.C.Mexico City

IAD - MEX

IADMEX

Washington, D.C. Dulles Intl

Sun 8/2

07:00-12:55

1 stop6h 55m

Mexico City Benito Juarez

Sun 15/2

08:30-13:49

Nonstop4h 19m

£359

Washington, D.C.Mexico City

IAD - MEX

IADMEX

Washington, D.C. Dulles Intl

Thu 8/1

12:30-22:00

1 stop10h 30m

Mexico City Benito Juarez

Thu 15/1

08:30-13:49

Nonstop4h 19m

£359

Washington, D.C.Mexico City

IAD - MEX

IADMEX

Washington, D.C. Dulles Intl

Tue 6/1

06:10-12:36

1 stop7h 26m

Mexico City Benito Juarez

Thu 22/1

16:45-00:07

1 stop6h 22m

£366

Washington, D.C.Mexico City

IAD - MEX

IADMEX

Washington, D.C. Dulles Intl

Mon 20/10

06:00-14:30

1 stop10h 30m

Mexico City Benito Juarez

Tue 28/10

08:40-15:02

Nonstop4h 22m

£366

Washington, D.C.Mexico City

IAD - MEX

IADMEX

Washington, D.C. Dulles Intl

Sat 8/11

12:09-19:20

1 stop8h 11m

Mexico City Benito Juarez

Wed 12/11

08:40-17:04

1 stop7h 24m

£381

Washington, D.C.Mexico City

IAD - MEX

IADMEX

Washington, D.C. Dulles Intl

Wed 10/12

16:01-20:10

Nonstop5h 09m

Mexico City Benito Juarez

Sun 14/12

08:40-14:02

Nonstop4h 22m

£382

Washington, D.C.Mexico City

IAD - MEX

IADMEX

Washington, D.C. Dulles Intl

Sat 6/12

12:19-21:40

1 stop10h 21m

Mexico City Benito Juarez

Wed 10/12

08:40-14:02

Nonstop4h 22m

£385

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Showing 1-10 of 19 results
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Best time to book a flight from Washington, D.C. to Mexico City

Have a flexible travel schedule? Discover the best time to fly to Mexico City from Washington, D.C. with our price prediction graph.
Estimated return 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. to Mexico City

How far ahead should I book a flight from Washington, D.C. to Mexico City?

Use this chart to determine the optimal time to book a return flight from Washington, D.C. to Mexico City. Price data was last updated on 12 September 2025.

Booking 44 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Mexico City. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C. to Mexico City?

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. to Mexico City (average of £791). Flying from Washington, D.C. to Mexico City in July is currently the most expensive (average of £1,261). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to MEX?

Find hourly flight availability from Washington, D.C. to Mexico City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

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

Weekly flight availability from Washington, D.C. to Mexico City

Explore weekly flight availability from Washington, D.C. to Mexico City. 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 18 September 2025.

The most flights from WAS to MEX are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost for a return flight from Washington, D.C. to Mexico City?

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Mexico City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Mexico City from Washington, D.C.?

    Most people fly into Mexico City Benito Juarez (MEX) if they book a flight to Mexico City from Washington, D.C.. On average, Benito Juarez has 3 inbound flights from Washington, D.C. per day from 0 airlines. Mexico City Benito Juarez is conveniently located just 5.5 mi from Mexico City’s city center.

  • How long is the flight from Washington, D.C. to Mexico City?

    A quick flight from Washington, D.C. to Mexico City can take about 5h 09m. Delta provides one of the quickest options available for as low as £356. The distance between Washington, D.C. and Mexico City is about 1865 mi. Most flights are nonstop.

  • What are the most reliable airlines from Washington, D.C. to Mexico City?

    Before booking your flight to Mexico City from Washington, D.C., check out the most reliable airlines to get you to your destination on time: United Airlines (82%), KLM (72%), Delta( 72%).

  • Can I find deals for flights from Washington, D.C. to Mexico City that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Mexico City flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Mexico City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Mexico City.

  • Can I find deals for business class flights from Washington, D.C. to Mexico City?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Mexico City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to Mexico City?

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. to Mexico City (average of £791). Flying from Washington, D.C. to Mexico City in July is currently the most expensive (average of £1,261). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Can Cheapflights find flights from Washington, D.C. to Mexico City with no change fees?

Need flexible booking options for your flight to Mexico City from Washington, D.C.? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Mexico City become cheaper?

Not ready to book yet? You can track prices for flights from Washington, D.C. to Mexico City on Cheapflights with our Price Alert feature and get notified when better prices are available.

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