$206 Cheap Flights from Mexico City (MEX) to Seattle (SEA)

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Cheap Flights from Mexico City to Seattle (MEX-SEA)

Prices were available within the past 7 days and start at $206 for one-way flights and $374 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Volaris
Air Canada
WestJet
American Airlines
Flights from Mexico City (MEX) to Seattle (SEA)
Origin airport
Mexico City Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Aeromexico, Air Canada, American Airlines, Delta, Frontier Airlines, United, Volaris
Roundtrip price
$374
Distance
2333 mi

Mexico City to Seattle Flights

The cheapest times to fly from Mexico City to Seattle

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

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

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

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 Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $206 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 Seattle 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 Seattle 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 long does it take to fly from MEX to Sea-Tac Airport?
Book a ticket with Aeromexico and you’ll be in the air for around 7 hours and 5 minutes. This reputable airline operates a direct flight that leaves at 1:55PM from Mexico City Intl. Airport (MEX) and comes in to land at SEA at 8:00PM. Expedia has some epic flight deals, so take a look at what’s available on this route today.
Is it cheaper to buy a plane ticket from Benito Juárez Intl. Airport to Seattle - Tacoma Intl. Airport (SEA) last minute?
When it comes to booking your flights, it’s better to be prepared. While it’s possible to find a deal on a Mexico Airport to Sea-Tac Airport flight at the last minute, fares usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days in advance. For international journeys it’s between three and four months.
What airline has the least delays from Benito Juárez Intl. Airport to Seattle - Tacoma Intl. Airport (SEA)?
If you don’t want to be stuck at the departure gate — or worse, have your trip upended due to a flight delay — fly with Aeromexico. Around 83% of its Mexico Airport to SEA services touch down on time. You can review your flight status before making your way to the airport through the Expedia App. It also delivers real-time notifications about other important info, like any gate changes, luggage carousel numbers and how to reach your hotel. Everything you need to know is right there in your pocket!
What airports do you fly into for Seattle from Mexico City?
With Seattle - Tacoma Intl. Airport (SEA), Renton Municipal Airport (RNT) and Boeing Field Airport (BFI) to select from, getting from Mexico City to Seattle is a breeze. The city’s major gateway, Seattle - Tacoma Intl. Airport (SEA), is about 12 mi south of the center. Besides the price of tickets, consider factors like the ease of getting from the airport and the distance to your hotel when choosing where to fly into. Get your Seattle adventure off to an awesome start by discovering Space Needle and Pike Place Market.
What are the most popular departure times for flights from MEX to SEA?
The most popular departure times for flights from MEX to Sea-Tac Airport are between 1:00 PM - 2:00 PM on Aeromexico. Our suggestion is to jet off in the morning. The earlier you do, the better your chances of arriving on time with lighter air traffic around.
Can I change the date of my flight from Mexico City Intl. Airport (MEX) to Sea-Tac Airport?
Life can throw a spanner in your plans, so Expedia is here to help make amending your trip as easy as possible. First, find your Benito Juárez Intl. Airport to Sea-Tac Airport itinerary through the Expedia Trips portal and look up the ticket rules and conditions to see if change fees apply. If you purchased your ticket in the last 24 hours, some carriers will let you cancel at no cost and organize new flights. If you bought your fare more than 24 hours ago, contact us via our Customer Service portal to run through your options.

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