SEA - MEX

£387 Find Cheap Flights from Seattle to Mexico City – Compare and Save

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Everything you should know

Cheapest return flight
£482
Typical prices: £379-£618
Delta
Fri 5/10Sun 14/10
SEA - MEX • Direct
Cheapest one-way flight
£387
Typical prices: £125-£301
Delta
Sat 17/11
SEA - MEX • Direct
Direct flights
You can fly direct with Aeromexico. Average duration is 5h 29m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 95% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 11 weeks in advance save around 8% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 16% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg £337 (return)
Shortest trip • 8h 24m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Mexico City!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Seattle to Mexico City

Mon, 5 Oct - Wed, 14 Oct
Delta Logo
09:30 - 15:55SEA  Seattle/Tacoma Intl-MEX Mexico City Benito Juarez
5h 25mdirect
Delta Logo
15:00 - 19:55MEX  Mexico City Benito Juarez-SEA Seattle/Tacoma Intl
5h 55mdirect
£482Delta
Wed, 7 Oct - Thu, 15 Oct
Delta Logo
18:15 - 12:40SEA  Seattle/Tacoma Intl-MEX Mexico City Benito Juarez
17h 25m1 stop Minneapolis St Paul
Delta Logo
15:00 - 19:55MEX  Mexico City Benito Juarez-SEA Seattle/Tacoma Intl
5h 55mdirect
£486Delta
Tue, 6 Oct - Tue, 13 Oct
Delta Logo
09:30 - 15:55SEA  Seattle/Tacoma Intl-MEX Mexico City Benito Juarez
5h 25mdirect
Delta Logo
06:55 - 14:50MEX  Mexico City Benito Juarez-SEA Seattle/Tacoma Intl
8h 55m1 stop Los Angeles
£489Delta
Fri, 1 Jan - Sun, 10 Jan
American Airlines Logo
07:30 - 23:14SEA  Seattle/Tacoma Intl-MEX Mexico City Benito Juarez
13h 44m1 stop Dallas/Fort Worth
American Airlines Logo
05:45 - 16:54MEX  Mexico City Benito Juarez-SEA Seattle/Tacoma Intl
13h 09m1 stop Dallas/Fort Worth
£492American Airlines
Sun, 11 Oct - Thu, 22 Oct
Delta Logo
21:35 - 18:05SEA  Seattle/Tacoma Intl-MEX Mexico City Benito Juarez
19h 30m2 stops Los Angeles Guadalajara Miguel Hidal
Delta Logo
13:10 - 23:59MEX  Mexico City Benito Juarez-SEA Seattle/Tacoma Intl
11h 49m2 stops Guadalajara Miguel Hidal Salt Lake City
£493Delta
Mon, 12 Oct - Tue, 20 Oct
Delta Logo
05:30 - 18:05SEA  Seattle/Tacoma Intl-MEX Mexico City Benito Juarez
11h 35m2 stops Salt Lake City Guadalajara Miguel Hidal
Delta Logo
09:05 - 21:58MEX  Mexico City Benito Juarez-SEA Seattle/Tacoma Intl
13h 53m2 stops Austin Bergstrom Los Angeles
£496Delta
Sun, 18 Oct - Tue, 27 Oct
Delta Logo
09:30 - 15:55SEA  Seattle/Tacoma Intl-MEX Mexico City Benito Juarez
5h 25mdirect
Delta Logo
07:10 - 20:27MEX  Mexico City Benito Juarez-SEA Seattle/Tacoma Intl
14h 17m1 stop Los Angeles
£500Delta
Wed, 7 Oct - Wed, 14 Oct
Delta Logo
09:30 - 15:55SEA  Seattle/Tacoma Intl-MEX Mexico City Benito Juarez
5h 25mdirect
Delta Logo
15:00 - 19:55MEX  Mexico City Benito Juarez-SEA Seattle/Tacoma Intl
5h 55mdirect
£500Delta
Mon, 12 Oct - Tue, 27 Oct
Delta Logo
23:50 - 12:40SEA  Seattle/Tacoma Intl-MEX Mexico City Benito Juarez
11h 50m1 stop Minneapolis St Paul
Delta Logo
14:50 - 19:55MEX  Mexico City Benito Juarez-SEA Seattle/Tacoma Intl
6h 05mdirect
£504Delta
Fri, 1 Jan - Sun, 10 Jan
Aeromexico Logo
09:30 - 17:00SEA  Seattle/Tacoma Intl-MEX Mexico City Benito Juarez
5h 30mdirect
Aeromexico Logo
17:50 - 19:40MEX  Mexico City Benito Juarez-SEA Seattle/Tacoma Intl
27h 50m1 stop San José del Cabo Los Cabos
£506Aeromexico
Booking Insights

Price, demand, and travel trends for Seattle to Mexico City flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Seattle to Mexico City with more confidence.

How much is a return flight from Seattle to Mexico City?

Return flights from Seattle to Mexico City start at £482. Prices are typical for this route right now, with typical return fares ranging from £379 to £618. The lowest price found in the past 5 days was £482 on Delta.

What's the cheapest day of the week to fly from Seattle to Mexico City?

Monday is the cheapest day of the week to fly from Seattle to Mexico City and is 3% cheaper than the average day. Friday is the most expensive day with flight prices 4% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Seattle to Mexico City?

•June is the cheapest month to fly from Seattle to Mexico City at £396 return.
•December (£640) and October (£529) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 61% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Seattle to Mexico City the cheapest?

Flights from Seattle to Mexico City are cheapest 11 weeks before departure. Booking in this window typically costs about 8% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Seattle to Mexico City

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on MEX

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Harriet Baskas

Harriet Baskas

Expert on SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, The Points Guy, and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Key details for Seattle to Mexico City flights

Low season

September

Cheapest flight

£387
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
Flights from Seattle to Mexico City

When to book flights from Seattle to Mexico City

Are your dates flexible? Find out the best times to travel from Seattle to Mexico City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Seattle to Mexico City flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airlines offer extra legroom and free seat selection on Seattle to Mexico City flights?

    Among airlines operating Seattle to Mexico City flights:

    • Aeromexico: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines are available on the route from Seattle to Mexico City?

    Only Aeromexico operates flights between Seattle and Mexico City.

  • Which airports can I use when flying from Seattle to Mexico City?

    Flights from Seattle to Mexico City usually depart from Seattle/Tacoma Intl (SEA) and arrive at Mexico City Benito Juarez (MEX).

  • Which airlines include bags at no extra cost on Seattle to Mexico City flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Aeromexico: a cabin bag and a checked bag in Economy class
    • Delta: a cabin bag and a checked bag in Economy class
    • AeroMexico Connect: a cabin bag in Economy class class

    Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

  • How much can I save by having a stopover when flying from Seattle to Mexico City?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average £337 return via Denver Intl (DEN), compared with £652 for direct.

  • What is the standard checked bag allowance on flights from Seattle to Mexico City?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £22–£45 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Seattle to Mexico City?

    The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Aeromexico and Delta. Other aircraft seen on the route include Boeing 737 variants.

  • Which airports do connecting flights from Seattle to Mexico City pass through?

    One-stop flights from Seattle to Mexico City most commonly connect through:

    • Guadalajara Miguel Hidal (GDL) – 91% of one-stop connections
    • Dallas/Fort Worth (DFW) – 4% of one-stop connections
    • San Francisco (SFO) – 1% of one-stop connections
    • Los Angeles (LAX) – 1% of one-stop connections

    Guadalajara Miguel Hidal (GDL) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Mexico City?

    Yes. Being flexible with your travel dates can save you up to 7% on the Seattle to Mexico City route. Monday is the cheapest departure day at £461 return on average, while Friday is the most expensive at £491, a difference of £30. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed on the route from Seattle to Mexico City?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Seattle to Mexico City route, 5% of flights were delayed in the past 3 months, with delays averaging 3 hours 32 minutes.

  • How are flight departures from Seattle to Mexico City spread across the day?

    Morning is the busiest departure period on Seattle to Mexico City flights, with 100% leaving in that window. Afternoon departures account for 0%, Evening flights for 0%, and Night flights for 0%.

  • What popular places can I visit in Mexico City?

    Some of the most popular sights in Mexico City are Monumento a la Revolución, Plaza de la Constitucion, and Mexico City Stadium. These are among the most viewed places in Mexico City on KAYAK.

  • What are the earliest and latest flights from Seattle to Mexico City?

    These are the earliest and latest flight times available from Seattle to Mexico City:

    • Earliest: departs at 09:30 and lands at 14:59
    • Latest: departs at 09:30 and lands at 14:59.

    The flight takes about 5h 29m.

  • How expensive are last-minute Seattle to Mexico City flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 3% above the route average of £471. Book 11 weeks before departure for the lowest fares.

  • How long is a flight from Seattle to Mexico City?

    A direct flight from Seattle to Mexico City takes 5h 29m, covering 2,333 miles.

  • Do I need a passport to fly from Seattle to Mexico City?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Seattle to Mexico City changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £482 to £2,309. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Seattle to Mexico City looking right now?

    One-way fares from Seattle to Mexico City are currently higher than usual. Average one-way flight prices are about £419, which is 123% above the typical average for this route.

  • How does Aeromexico's on-time performance compare to other airlines on Seattle to Mexico City flights?

    Aeromexico is the only airline operating Seattle to Mexico City flights. 95% of its flights are on time.

  • How do delay rates compare for morning and evening flights from Seattle to Mexico City?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different stopover airport from Seattle to Mexico City?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time of 8h 24m, compared to 8h 40m via San Francisco (SFO) and 8h 47m via Phoenix Sky Harbor Intl (PHX).

  • What is the time difference between Seattle and Mexico City?

    Mexico City is 1 hour ahead of Seattle (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which car hire options are available at Mexico City Benito Juarez Airport (MEX)?

    Mexico City Benito Juarez Airport (MEX) hosts 5 major car hire companies, with daily rates starting from around £1 for economy cars. Top options include:
    • Budget
    • Infinity Car Rental
    • Europcar
    • MEXRENTACAR
    • America Car Rental

  • How much should I expect to pay for a Seattle to Mexico City flight?

    Return flights from Seattle to Mexico City range from £379 to £618, with an average of £471 over the past 12 months. Anything below £379 counts as a good deal.

Your guide to booking Seattle to Mexico City flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure instead of Friday. On this route, Monday flights average £461 – about £30 less than Friday (6% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 11 weeks before you fly. On this route, that window historically saves about 8% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Mexico City trip for June. Fares historically average £396 return in that month – typically £244 less than the most expensive month, which is December (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Denver Intl Airport (DEN) can be cheaper than flying direct. The cheapest stopover option averages £337 return on this route – about £315 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Mexico City Benito Juarez Airport.
    - Camino Real Aeropuerto Mexico
    - NH Collection Mexico City Airport T2
    - Courtyard by Marriott Mexico City Airport

Prefer to fly direct from Seattle to Mexico City?

 
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Mexico City Benito Juarez Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Mexico City Benito Juarez

Monday

Aeromexico

Aeromexico

Tuesday

Aeromexico

Aeromexico

Wednesday

Aeromexico

Aeromexico

Thursday

Aeromexico

Aeromexico

Friday

Aeromexico

Aeromexico

Saturday

Aeromexico

Aeromexico

Sunday

Aeromexico

Aeromexico

See more direct flights

Direct returns

Mexico City Benito Juarez to Seattle/Tacoma Intl

Monday

Aeromexico

Aeromexico

Tuesday

Aeromexico

Aeromexico

Wednesday

Aeromexico

Aeromexico

Thursday

Aeromexico

Aeromexico

Friday

Aeromexico

Aeromexico

Saturday

Aeromexico

Aeromexico

Sunday

Aeromexico

Aeromexico

See more direct flights

More options for your flight from Seattle to Mexico City

Complete your trip to Mexico City with a hotel stay or car hire