$178 Cheap United flights Mexico City (MEX) to Chicago (ORD)

View $178 flight on Sat, Nov 29, 2025Opens in a new window

$178 Cheap United flights Mexico City (MEX) to Chicago (ORD)

Prices were available within the past 7 days and start at $178 for one-way flights and $294 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Sep 26 - Tue, Sep 30
MEX
Mexico City
ORD
Chicago
$294 Roundtrip, found 2 hours ago
$294
Roundtrip
found 2 hours ago
Select United flight, departing Fri, Sep 26 from Mexico City to Chicago, returning Tue, Sep 30, priced at $294 found 2 hours ago
United
Thu, Nov 27 - Mon, Dec 1
MEX
Mexico City
ORD
Chicago
$300 Roundtrip, found 1 hour ago
$300
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Nov 27 from Mexico City to Chicago, returning Mon, Dec 1, priced at $300 found 1 hour ago
United
Thu, Sep 25 - Mon, Sep 29
MEX
Mexico City
ORD
Chicago
$306 Roundtrip, found 2 hours ago
$306
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Sep 25 from Mexico City to Chicago, returning Mon, Sep 29, priced at $306 found 2 hours ago
United
Sun, Nov 2 - Wed, Nov 12
MEX
Mexico City
ORD
Chicago
$310 Roundtrip, found 5 hours ago
$310
Roundtrip
found 5 hours ago
Select United flight, departing Sun, Nov 2 from Mexico City to Chicago, returning Wed, Nov 12, priced at $310 found 5 hours ago
United
Sun, Dec 21 - Tue, Jan 6
MEX
Mexico City
ORD
Chicago
$311 Roundtrip, found 1 hour ago
$311
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Dec 21 from Mexico City to Chicago, returning Tue, Jan 6, priced at $311 found 1 hour ago
United
Tue, Dec 2 - Tue, Dec 9
MEX
Mexico City
ORD
Chicago
$315 Roundtrip, found 3 hours ago
$315
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Dec 2 from Mexico City to Chicago, returning Tue, Dec 9, priced at $315 found 3 hours ago
Flights from Mexico City (MEX) to Chicago (ORD)
Origin airport
Mexico City Intl.
Destination airport
O'Hare Intl.
Airlines serving
Aeromexico, Air Canada, American Airlines, Delta, Frontier Airlines, United, Viva, Volaris, avianca
Popular airline
Aeromexico
Distance
1689 mi
Average flight time
5 hours 16 mins

Frequently asked questions

How much is a United Airlines flight from Mexico City Intl. Airport (MEX) to O'Hare Intl. Airport (ORD)?
Use the "Price (lowest to highest)" filter on Expedia to search for cheap United Airlines round-trip flights from $294 from MEX to ORD. Affordable one-way fares from $178 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from MEX to ORD with United Airlines?
United Airlines flights to Chicago tend to be cheaper in the quieter months of January and February. Whether you need a one-way or a return ticket, you could score a better deal then.
What is the cheapest time to book flights from Mexico City Intl. Airport (MEX) to O'Hare Intl. Airport (ORD) with United Airlines?
Check for United Airlines flights from MEX to ORD about one month before you want to go. The cheapest time to reserve an international flight is usually 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. No matter your itinerary or ticket type, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Passengers who book on a Sunday can save an average of 17% compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Mexico City Intl. Airport (MEX) to O'Hare Intl. Airport (ORD)?
Yes, you can travel from Mexico City Intl. Airport (MEX) to O'Hare Intl. Airport (ORD) on one of United Airlines's 14 weekly direct flights. Use our "Nonstop" and "Airline" filters to find the United Airlines flight that'll take you to ORD at a time that suits you.
How long does it take to fly from MEX to ORD with United Airlines?
Leave Mexico City Intl. Airport (MEX) for O'Hare Intl. Airport (ORD) on a direct United Airlines flight, and you'll be in the air for around 4h 15m.
Which day of the week has the most United Airlines flights from Mexico City Intl. Airport (MEX) to O'Hare Intl. Airport (ORD)?
If you're looking for flexibility, Thursday offers the most choice for United Airlines flights from Mexico City Intl. Airport (MEX) to O'Hare Intl. Airport (ORD). You can select from 2 different departures.
What is the earliest United Airlines flight from MEX to ORD?
The first flight from MEX to ORD with United Airlines leaves at 8:10AM UTC-6. You'll touch down at 12:20PM UTC-6. The final United Airlines flight of the day leaves at 2:40PM UTC-6 and arrives at 7:00PM UTC-6. With around 20% fewer cancellations for morning and mid-morning departures, heading out early is often the smartest option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Chicago?
O'Hare Intl. Airport (ORD) is the primary Chicago gateway for United Airlines flights from Mexico City Intl. Airport (MEX).
Why fly with United Airlines from MEX to ORD?
Journey from MEX to ORD with United Airlines and you'll enjoy a range of perks including a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you could also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Mexico City Intl. Airport (MEX) to O'Hare Intl. Airport (ORD)?
You'll most likely travel on an Airbus A320 for your United Airlines flight from Mexico City Intl. Airport (MEX) to O'Hare Intl. Airport (ORD). However, you could end up on another aircraft for operational reasons.
Can I change or cancel my United Airlines flight from Mexico City Intl. Airport (MEX) to O'Hare Intl. Airport (ORD)?
Changes are usually free within 24 hours of booking, but your airline may charge you after that. For further details about modifying your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you want the freedom to change your itinerary without additional costs, tick the "No cancel fee" or "Changes included" filter when planning your next trip.

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*Available to One Key members.