Cheap Flights from Seattle (LKE) to Mexico City (MEX)

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Find available prices by choosing your travel dates.
Flights from Seattle (LKE) to Mexico City (MEX)
Origin airport
Lake Union Seaplane Base
Destination airport
Mexico City Intl.
Distance
2344 mi

Seattle to Mexico City Flights

The cheapest times to fly from Seattle to Mexico City

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 Seattle to Mexico City are during the month of . You can find some of the cheapest flights from Seattle to Mexico City with Expedia's search tool and vast selection of airlines.

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

Sunday is one of the best days to book for cheap flights from Seattle to Mexico City: 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 Seattle to Mexico City

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 Seattle to Mexico City in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Seattle to Mexico City 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 Seattle to Mexico City 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

Is it cheaper to buy a plane ticket from LKE to Mexico City Intl. Airport (MEX) last minute?
Being a spontaneous soul is a fantastic way to travel, but it isn’t always the smartest method to track down a cheap airfare. Consider booking your LKE to Mexico City Intl. Airport (MEX) journey well ahead of time rather than leaving it until the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. You can unleash your spontaneous side when you reach your destination!
What airports do you fly into for Mexico City from Seattle?
Mexico City Intl. Airport (MEX), Toluca Intl. Airport (TLC) and Hermanos Serdan Intl. Airport (PBC) are your choices when jetting from Seattle to Mexico City. About 3 mi east of downtown Mexico City, Mexico City Intl. Airport (MEX) is the city’s major gateway. Think about things like flight arrival and departure times and the distance to your hotel before picking your airport. Zócalo and Angel of Independence Monument are two amazing attractions to check out when you arrive.
Can I change the date of my flight from LKE to Mexico City Intl. Airport (MEX)?
You can easily make changes to your LKE to Mexico City Intl. Airport (MEX) journey via the Expedia Trips portal. Before making any amendments, read through the rules and conditions in your itinerary to learn what you’re able to do and if fees apply for changes. Some airlines charge a change fee per person, on top of any difference in ticket prices. But if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also head to our Customer Service portal for more advice and to connect with our Virtual Agent.

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*Available to One Key members.