$146 Cheap Flights from Seattle (SEA) to Mexico City (MEX)

View $146 flight on Sat, Jan 31, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Benito Juarez International Airport (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 $146 for one-way flights and $350 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Mon, Oct 20 - Tue, Oct 21
SEA
Seattle
MEX
Mexico City
$350 Roundtrip, found 2 hours ago
$350
Roundtrip
found 2 hours ago
Select Aeromexico flight, departing Mon, Oct 20 from Seattle to Mexico City, returning Tue, Oct 21, priced at $350 found 2 hours ago
Aeromexico
Thu, Nov 6 - Fri, Nov 7
SEA
Seattle
MEX
Mexico City
$353 Roundtrip, found 4 hours ago
$353
Roundtrip
found 4 hours ago
Select Aeromexico flight, departing Thu, Nov 6 from Seattle to Mexico City, returning Fri, Nov 7, priced at $353 found 4 hours ago
Volaris
Sun, Sep 28 - Tue, Oct 7
SEA
Seattle
MEX
Mexico City
$355 Roundtrip, found 1 hour ago
$355
Roundtrip
found 1 hour ago
Select Volaris flight, departing Sun, Sep 28 from Seattle to Mexico City, returning Tue, Oct 7, priced at $355 found 1 hour ago
Aeromexico
Fri, Nov 14 - Sat, Nov 15
SEA
Seattle
MEX
Mexico City
$359 Roundtrip, found 23 hours ago
$359
Roundtrip
found 23 hours ago
Select Aeromexico flight, departing Fri, Nov 14 from Seattle to Mexico City, returning Sat, Nov 15, priced at $359 found 23 hours ago
Volaris
Sun, Mar 1 - Sat, Mar 7
SEA
Seattle
MEX
Mexico City
$360 Roundtrip, found 2 hours ago
$360
Roundtrip
found 2 hours ago
Select Volaris flight, departing Sun, Mar 1 from Seattle to Mexico City, returning Sat, Mar 7, priced at $360 found 2 hours ago
Volaris
Wed, Feb 4 - Tue, Feb 10
SEA
Seattle
MEX
Mexico City
$364 Roundtrip, found 9 hours ago
$364
Roundtrip
found 9 hours ago
Select Volaris flight, departing Wed, Feb 4 from Seattle to Mexico City, returning Tue, Feb 10, priced at $364 found 9 hours ago
Volaris
Thu, Sep 18 - Sun, Sep 28
SEA
Seattle
MEX
Mexico City
$365 Roundtrip, found 22 hours ago
$365
Roundtrip
found 22 hours ago
Select Volaris flight, departing Thu, Sep 18 from Seattle to Mexico City, returning Sun, Sep 28, priced at $365 found 22 hours ago
Delta
Thu, Jan 8 - Fri, Jan 9
SEA
Seattle
MEX
Mexico City
$501 Roundtrip, found 5 days ago
$501
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Jan 8 from Seattle to Mexico City, returning Fri, Jan 9, priced at $501 found 5 days ago
Frontier Airlines
Mon, Aug 11 - Sat, Sep 20
SEA
Seattle
MEX
Mexico City
$505 Roundtrip, found 2 days ago
$505
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Aug 11 from Seattle to Mexico City, returning Sat, Sep 20, priced at $505 found 2 days ago
Air Canada
Wed, Nov 12 - Wed, Nov 26
SEA
Seattle
MEX
Mexico City
$524 Roundtrip, found 3 days ago
$524
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Nov 12 from Seattle to Mexico City, returning Wed, Nov 26, priced at $524 found 3 days ago

Find the cheapest month to fly from Seattle (SEA) to Mexico City (MEX)

March is typically the cheapest month to fly

From $359 - $544 per traveler.

Graph displaying average flight prices per month

Alternative airports near Mexico City

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Santa Lucía, Mexico (NLU-Felipe Ángeles Intl.) NLU. Average driving time to city center is 43 minutes. Flights from $1,036
NLU
Santa Lucía, Mexico (NLU-Felipe Ángeles Intl.)
Average driving time to city center43 min
Flights from $1,036
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
Roundtrip price
$349
Distance
2333 mi
Average flight time
6 hours 35 mins

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 October. 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 $146 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 much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX) cost?
Cheap return fares from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX) start from $677. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Aeromexico flight leaving SEA on August 12 2025 and touching down at MEX. The price was last updated on July 17 2025 and has not changed since.
What is the cheapest month to fly from SEA to MEX?
The cheapest flights from SEA to MEX are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX)?
If you're departing from Seattle - Tacoma Intl. Airport (SEA), you can get on a direct flight to Mexico City Intl. Airport (MEX) with Aeromexico.
What is the cheapest airline that flies from SEA to MEX?
Fly from SEA to MEX with Aeromexico. This carrier currently has the cheapest one-way fare for this route, starting from $439. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SEA on October 9 2025. Prices were last updated on July 17 2025 and have not changed since.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX)?
On average, Seattle - Tacoma Intl. Airport (SEA) only has 1 direct flight to Mexico City Intl. Airport (MEX) each day. For additional options, try our easy-to-use filters. Enter your preferred travel dates, then select "1 Stop" or "2+ Stops" to discover flights offering layovers.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX)?
More travelers fly between SEA and MEX at 9 AM than at any other time. Looking for a quieter experience? Consider flying outside peak hours and it's possible you'll save on your fare as well.
What day of the week has the most flights from SEA to MEX?
If you travel on a Friday, you'll get the biggest range of options for flights from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX)?
Seattle - Tacoma Intl. Airport (SEA)'s earliest flight to Mexico City Intl. Airport (MEX) departs at approximately 9:24AM UTC-8. With a total flight time of 5h 36m, you'll arrive at around 5:00PM UTC-6.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX)?
The average flight duration from SEA to MEX is 5 hours and 35 minutes, covering a distance of 2,300 mi.
What airline has the least delays from SEA to MEX?
Delta Air Lines has the strongest track record for on-time direct flights from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX), with an on-time score of 100%. Use the Expedia App to check your flight schedule before you go and receive notifications about any changes.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX)?
Select a flight from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX) that takes off before 3 PM to reduce the risk of cancellations and delays. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Mexico City from Seattle - Tacoma Intl. Airport (SEA)?
Mexico City Intl. Airport (MEX) is the only airport in Mexico City with direct flights from Seattle - Tacoma Intl. Airport (SEA). Browse your options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX) last-minute?
Waiting until just before your departure to book a ticket from SEA to MEX generally means paying more. While it's possible to find some last-minute offers, there's no guarantee. Allow some flexibility in your schedule to boost your chances of scoring a bargain.
Is it cheaper to book a SEA to MEX flight and hotel package?
Compared with arranging flights and hotels separately, booking a SEA to MEX flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the stress out of planning your trip. Just pick your flights and select from our extensive range of hotels, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Mexico City Intl. Airport (MEX)?
If you booked your SEA to MEX flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

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*Available to One Key members.