$229 Cheap Flights from Seattle (SEA) to Mexico City (MEX)

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

Prices were available within the past 7 days and start at $229 for one-way flights and $364 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Aeromexico
Aeromexico
Aeromexico
Volaris
Volaris
Volaris
Frontier Airlines
Air Canada
WestJet
Flights from Seattle (SEA) to Mexico City (MEX)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Mexico City Intl.
Airlines serving
Aeromexico, Air Canada, American Airlines, Delta, Frontier Airlines, United, Volaris, WestJet
Roundtrip price
$363
Distance
2333 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 July. 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 $229 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

How long does it take to fly from SEA to Benito Juárez Intl. Airport?
Aeromexico has a direct flight departing SEA at 9:35AM and landing at Benito Juárez Intl. Airport at 3:10PM — a total flight time of 4 hours and 35 minutes. Secure a seat, pack a few things to keep you entertained and the time will pass by quickly.
Is it cheaper to buy a plane ticket from SEA to MEX last minute?
When it comes to booking your flights, being prepared pays dividends. While you could pick up a last-minute deal on a Sea-Tac Airport to MEX flight, fares usually don’t get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days in advance. For international travel it’s between three and four months.
What airline has the least delays from Seattle - Tacoma Intl. Airport (SEA) to Benito Juárez Intl. Airport?
Travel with Aeromexico from Sea-Tac Airport to Mexico Airport and hit the tarmac at the time that’s on your plane ticket. This carrier clinches first place on this route, with an on-time arrival score of 78%. If there is a delay to your flight, the free Expedia App will keep you updated. Download it onto your device and get trip alerts right when you need them, from flight delays to any gate number changes.
What airports do you fly into for Mexico City from Seattle?
With Mexico City Intl. Airport (MEX), Toluca Intl. Airport (TLC) and Hermanos Serdan Intl. Airport (PBC) to select from, journeying from Seattle to Mexico City is no sweat. The city’s key hub, Mexico City Intl. Airport (MEX), is roughly 3 mi east of the downtown area. Besides the price of fares, consider factors like public transportation options from the airport and the distance to your hotel when deciding where to land. Get your Mexico City adventure off to a flying start by visiting Zócalo and Angel of Independence Monument.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Mexico Airport?
The most popular departure times for journeys from Seattle - Tacoma Intl. Airport (SEA) to MEX are between 9:00 AM - 10:00 AM on Aeromexico. Our tip is to head off in the morning. The earlier you set off, the greater your chances of a delay-free flight as air traffic hasn’t yet built up.
Can I change the date of my flight from SEA to Mexico Airport?
You can make changes to your Seattle - Tacoma Intl. Airport (SEA) to Benito Juárez Intl. Airport trip by logging in to the Expedia Trips portal. Before you make any amendments, read through the ticket rules in your itinerary to find out what the carrier will let you do and if any charges apply. Some airlines charge a change fee per person, plus 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 check out our Customer Service portal to find the answers to your questions and to connect with our Virtual Agent.

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