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Cheap flights from Seattle to Mexico City from £183

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEX
23 Apr — 30 Apr1
1 adult

Cheap flight deals from Seattle to Mexico City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Mexico City (MEX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 April 2025.

Round-trip from

£364

One-way from

£183

Popular in

December

Cheapest in

March

Average price

£531
WestJet
  • WestJet
  • 21/8-27/8
  • 4 total stops
  • 70h 19m total
  • Seattle to Mexico City
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WestJet
  • WestJet
  • 4/9
  • 2 total stops
  • 32h 19m total
  • Seattle to Mexico City
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£29 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Find flight deals from Seattle to Mexico City

Cheapest flights from Seattle to Mexico City
Explore the most affordable flight options available from Seattle to Mexico City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 April 2025.

Thu 21/813:15SEA - MEX
2 stops34h 43mWestJet
Wed 27/801:55MEX - SEA
2 stops35h 36mWestJet
Deal found 18/4£364
Mon 21/405:30SEA - MEX
1 stop7h 10mAeromexico
Mon 21/417:00MEX - SEA
2 stops30h 22mAeromexico
Deal found 17/4£367
Tue 6/506:00SEA - MEX
1 stop10h 30mMultiple Airlines
Mon 12/500:40MEX - SEA
1 stop11h 52mMultiple Airlines
Deal found 17/4£373
Mon 21/409:31SEA - MEX
Nonstop5h 24mDelta
Thu 24/414:55MEX - SEA
Nonstop6h 05mDelta
Deal found 17/4£440
Tue 22/408:50SEA - MEX
2 stops13h 20mUnited Airlines
Sat 26/404:40MEX - SEA
3 stops14h 51mUnited Airlines
Deal found 17/4£507

Cheapflights Fare Finder

Customise your flight search to find flights from Seattle to Mexico City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 April 2025.
Use the filters below to find and compare flights from Seattle to Mexico City that are best for you.

Fly from

Seattle

Fly to

Mexico City

Route

Depart

Return

Price

SeattleMexico City

SEA - MEX

SEAMEX

Seattle/Tacoma Intl

Thu 21/8

13:15-00:58

2 stops34h 43m

Mexico City Benito Juarez

Wed 27/8

01:55-12:31

2 stops35h 36m

£364

SeattleMexico City

SEA - MEX

SEAMEX

Seattle/Tacoma Intl

Tue 6/5

06:00-17:30

1 stop10h 30m

Mexico City Benito Juarez

Mon 12/5

00:40-11:32

1 stop11h 52m

£373

SeattleMexico City

SEA - MEX

SEAMEX

Seattle/Tacoma Intl

Sat 17/5

09:34-15:55

Nonstop5h 21m

Mexico City Benito Juarez

Wed 28/5

14:20-19:20

1 stop30h 00m

£422

SeattleMexico City

SEA - MEX

SEAMEX

Seattle/Tacoma Intl

Mon 6/10

09:30-16:10

Nonstop5h 40m

Mexico City Benito Juarez

Mon 20/10

14:55-20:00

Nonstop6h 05m

£493

SeattleMexico City

SEA - MEX

SEAMEX

Seattle/Tacoma Intl

Wed 2/7

00:20-12:45

1 stop11h 25m

Mexico City Benito Juarez

Thu 10/7

07:30-15:46

1 stop9h 16m

£557

SeattleMexico City

SEA - MEX

SEAMEX

Seattle/Tacoma Intl

Thu 4/9

15:39-00:58

2 stops32h 19m

£183

SeattleMexico City

SEA - MEX

SEAMEX

Seattle/Tacoma Intl

Wed 23/4

09:31-15:55

Nonstop5h 24m

£205

SeattleMexico City

SEA - MEX

SEAMEX

Seattle/Tacoma Intl

Thu 24/4

07:10-21:15

2 stops13h 05m

£208

SeattleMexico City

SEA - MEX

SEAMEX

Seattle/Tacoma Intl

Tue 8/7

00:20-12:45

1 stop11h 25m

£348

Flights are sorted by cheapest return flights first.

Deals found on 17/4

Best time to book a flight from Seattle to Mexico City

Have a flexible travel schedule? Discover the best time to fly to Mexico City from Seattle with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Mexico City

How far ahead should I book a flight from Seattle to Mexico City?

Use this chart to determine the optimal time to book a return flight from Seattle to Mexico City. Price data was last updated on 11 April 2025.

The best time to book flights from Seattle to Mexico City is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Mexico City?

Currently, April is the cheapest month in which you can book a flight from Seattle to Mexico City (average of £791). Flying from Seattle to Mexico City in July is currently the most expensive (average of £1,261). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to MEX?

Find hourly flight availability from Seattle to Mexico City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 April 2025.

When flying from Seattle to Mexico City, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Seattle to Mexico City

Explore weekly flight availability from Seattle to Mexico City. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 April 2025.

The most flights from SEA to MEX are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Mexico City by month

Plan your trip to Mexico City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Mexico City ranges from 0.0 - 120.0 inches per month. July is typically the wettest month, when rainfall can reach 120.0 mm. January is typically the driest time to visit Mexico City when rainfall is around 0.0 mm.

Temperature in Mexico City by month

Plan your trip to Mexico City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Mexico City, use this chart to help with planning. For those seeking warmer temperatures, May is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 13.0 C).

Reviews of airlines servicing Mexico City

Get insights into the airlines that provide service to Mexico City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Mexico City. Reviews last updated 18 April 2025.
To help decide which airline to fly from Seattle to Mexico City, see what other customers have to say about Delta, Aeromexico and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,917 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aeromexico
7.5
Good
1,699 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,809 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Mexico City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Seattle to Mexico City flight route?

    The Seattle/Tacoma Intl to Mexico City Benito Juarez flight path was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Seattle to Mexico City round-trip?

    Our cheapest airline available from Seattle to Mexico City is WestJet. Our recent data shows that you can find tickets from as low as £364 on this airline. Additional options worth looking into are Aeromexico and Delta, starting at £422 and £493 round-trip. You may be able to fly from Seattle to Mexico City for 36% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Seattle to Mexico City one-way?

    One-way options have recently been found by users for as low as £183 on WestJet. Other airlines that offer cheap prices include Delta from £205 and Aeromexico from £208 one-way.

  • What are the most reliable airlines from Seattle to Mexico City?

    Before booking your flight to Mexico City from Seattle, check out the most reliable airlines to get you to your destination on time: Delta (93%), Aeromexico (93%), Virgin Atlantic( 93%).

  • Can I find deals for flights from Seattle to Mexico City that include hotel bookings?

    Yes. In addition to deals on Seattle to Mexico City flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Mexico City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Mexico City.

  • Can I find deals for business class flights from Seattle to Mexico City?

    Yes. Cheapflights offers flight deals from Seattle to Mexico City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Mexico City?

    Currently, April is the cheapest month in which you can book a flight from Seattle to Mexico City (average of £791). Flying from Seattle to Mexico City in July is currently the most expensive (average of £1,261). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Why should you use Cheapflights to find cheap flight tickets from Seattle to Mexico City?

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Can Cheapflights find flights from Seattle to Mexico City with no change fees?

Certainly. Search results for flights to Mexico City from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle to Mexico City become cheaper?

Yes! Start tracking prices for Seattle to Mexico City flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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