Cheap flights from Seattle to Mexico City from $122

The cheapest month to fly to Mexico City from Seattle is in September. Flight prices, which tend to average around $499, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Mexico City from Seattle during June instead. Flights to Mexico City in June, while not as cheap as those in September, still average around $518.

Our data shows that Tuesday is the least expensive day to fly to Mexico City. Tickets to fly out on this day can be as low as $638. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $791.

According to our data, the cheapest time of day to fly to Mexico City is in the evening. momondo users have found flights departing from Seattle to Mexico City in the evening for as low as $638. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Mexico City, so prices are often more expensive at around $713 per ticket.

Fly from Seattle/Tacoma Intl to Mexico City Benito Juarez for the best Seattle/Tacoma Intl - Mexico City Benito Juarez flight prices

You are more likely to see cheaper flights to Mexico City from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Mexico City for around $607 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Mexico City from Seattle for as low as $542 on momondo.

There are 4 cabin classes available to choose from on Seattle to Mexico City flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta is the most popular carrier operating from Seattle/Tacoma Intl to Mexico City Benito Juarez

Aeromexico, Volaris and Delta are the top three most popular airlines that fly to Mexico City from Seattle according to our data. Aeromexico is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Mexico City. Keep in mind that there are 6 different airlines that fly to Mexico City on a routine basis, so you have a few additional options to choose from.

Historically, on average around 5% of flights between Seattle and Mexico City have experienced a delay on any given week. The average delay length over the past 12 months has been 213 minutes.

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

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

According to our data, Aeromexico have had the least number of delays on this route over the last 12 months; with about 5% of their flights experiencing any sort of delay.

Guadalajara (GDL) was the most common stop: 93% of momondo users choosing 1-stop flights on this route connected there.

Flights via Guadalajara (GDL) offer the lowest average round-trip price of $413.

Flights connecting via Los Angeles (LAX) have the shortest average one-way travel time: 8h 03m.

Los Angeles (LAX) has the shortest average layover time for this route: 1h 45m.

As of July 2026, 2 flights take off from Seattle and land in Mexico City each day. The most common flight departure time for this route is 9:00AM, with 100% of daily flights taking off at noon.

18 flights are operational weekly from Seattle to Mexico City as of July 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.