Cheap flights from Washington, D.C. Dulles Intl Airport to Mexico from $127

If you’re not able to fly to Mexico in September, then May is your next best option. Flight prices from Washington, D.C. Dulles Intl Airport to Mexico during May average around $548.

The cheapest day to depart on your flight to Mexico is on a Monday when prices can be found for as low as $558. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $653. These prices are subject to change though, so be sure to set up a Price Alert for flights to Mexico.

Our data shows that the cheapest Washington, D.C. Dulles Intl Airport to Mexico flights are usually those with departure times at noon. Our users have found flights to Mexico at noon for as low as $604. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $742 on average. Flights to Mexico from Washington, D.C. Dulles Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Washington, D.C. Dulles Intl to Cancun for the best Washington, D.C. Dulles Intl - Mexico flight prices

You are more likely to see cheaper flights to Mexico from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Mexico for around $586 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Mexico from Washington, D.C. Dulles Intl Airport for as low as $521 on momondo.

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl to Mexico flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines, American Airlines, and Delta are the most popular carriers operating from Washington, D.C. Dulles Intl to Mexico

United Airlines, Aeromexico and Delta are the top three most popular airlines that fly to Mexico from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Mexico. Keep in mind that there are 9 different airlines that fly to Mexico on a routine basis, so you have a few additional options to choose from.

Historically, on average around 11% of flights between Washington, D.C. and Mexico have experienced a delay on any given week. The average delay length over the past 12 months has been 140 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

The number of flights available between Washington, D.C. Dulles Intl Airport and Mexico is 6 per day as of February 2026. The most frequent departure time is 3:00PM, with 86% of daily flights leaving in the afternoon.

As of February 2026, 46 flights take off from Washington, D.C. Dulles Intl Airport and land in Mexico each week. The most common flight departure day for this route is Tue, with 15% of weekly flights taking off on this day.