$145 Find Cheap Flights from Monterrey to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Monterrey to Illinois departing on 8/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from Monterrey to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicagononstop$311
St. Louis
St. Louis1 stop$439
Chicago
Chicagononstop$311
St. Louis
St. Louis1 stop$439

Book Cheap Monterrey to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Monterrey to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Monterrey to Illinois

Thu, Nov 19 - Mon, Nov 23
Viva Logo
7:26 pm - 10:45 pm
MTY
-
ORD
3h 19mnonstop
Viva Logo
12:30 am - 3:58 am
ORD
-
MTY
3h 28mnonstop
$311Viva
Fri, Jul 24 - Sun, Jul 26
Viva Logo
7:30 pm - 11:55 pm
MTY
-
ORD
27h 25m
1 stop
Viva Logo
1:30 am - 4:00 am
ORD
-
MTY
3h 30mnonstop
$312Viva
Sat, Oct 24 - Sun, Nov 1
Multiple Airlines Logo
8:45 am - 1:10 pm
MTY
-
ORD
3h 25mnonstop
Multiple Airlines Logo
7:09 am - 7:07 pm
ORD
-
MTY
11h 58m
1 stop
$322Multiple Airlines
Mon, Nov 2 - Sat, Nov 7
Multiple Airlines Logo
7:26 pm - 10:45 pm
MTY
-
ORD
3h 19mnonstop
Multiple Airlines Logo
12:29 pm - 7:58 pm
ORD
-
MTY
7h 29m
1 stop
$323Multiple Airlines
Wed, Sep 16 - Tue, Sep 22
Delta Logo
12:16 pm - 10:45 pm
MTY
-
MDW
9h 29m
1 stop
Delta Logo
6:05 am - 6:55 pm
MDW
-
MTY
13h 50m
2 stops
$360Delta
Sat, Oct 24 - Tue, Oct 27
Delta Logo
12:15 pm - 10:25 pm
MTY
-
MDW
9h 10m
1 stop
Delta Logo
6:00 am - 5:20 pm
MDW
-
MTY
12h 20m
1 stop
$391Delta
Wed, Oct 21 - Sun, Oct 25
Air Canada Logo
9:20 am - 8:00 pm
MTY
-
STL
9h 40m
1 stop
Air Canada Logo
4:05 pm - 11:15 pm
STL
-
MTY
8h 10m
1 stop
$439Air Canada
Wed, Aug 5 - Fri, Aug 14
Air Canada Logo
9:20 am - 2:04 pm
MTY
-
STL
27h 44m
1 stop
Air Canada Logo
12:10 pm - 8:20 pm
STL
-
MTY
33h 10m
2 stops
$533Air Canada
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
12:10 pm - 10:59 pm
MTY
-
STL
9h 49m
2 stops
United Airlines Logo
1:24 pm - 8:45 am
STL
-
MTY
20h 21m
2 stops
$587United Airlines
Mon, Oct 5 - Wed, Oct 7
United Airlines Logo
12:25 pm - 9:21 pm
MTY
-
STL
7h 56m
1 stop
United Airlines Logo
10:27 am - 7:30 pm
STL
-
MTY
10h 03m
2 stops
$597United Airlines
Booking Insights

KAYAK's insights & trends for Monterrey to Illinois flights

Get data-powered insights and trends into flights from Monterrey to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Monterrey to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Monterrey to Illinois departing in November.

What is the cheapest Monterrey to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Monterrey found in the last 5 days was to Chicago, at $304 round-trip. The most popular route is from Monterrey (MTY) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $304.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Monterrey to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $360 on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $615.

Can I save money by flying with a layover from Monterrey to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $382, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Monterrey to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Monterrey to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Monterrey to Illinois is April, when tickets cost $86 (return) on average. On the other hand, the most expensive months are August and January, when the average cost of round-trip tickets is $231 and $199 respectively.

What’s the cheapest day of the week to fly from Monterrey to Illinois?

The average price of all round-trip flights from Monterrey to Illinois clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Illinois on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from Monterrey to Illinois. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.

How far in advance should I book a flight from Monterrey to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Monterrey to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Monterrey to Illinois, you should book around 3 weeks before departure, which saves you about 9% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$145
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 20% increase in price.
Flight from Monterrey to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Monterrey to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Monterrey to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Monterrey to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Monterrey to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Monterrey to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Monterrey to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Monterrey to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Monterrey to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Monterrey to the following destinations at these prices or less: Chicago $178 one-way - $373 round-trip

Reviews of the top 3 airlines serving from Monterrey to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Monterrey to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Monterrey to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8451 reviews
7.2Food
7.8Comfort
7.8Entertainment
8.5Crew
8.1Boarding
Airline reviews

It was as good as it could be. Flying is not a pleasant experience these days.

8.0 ExcellentMark, Jun 2026
LAX - ORD
Read more Delta reviews

It was as good as it could be. Flying is not a pleasant experience these days.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

Got on the plane and sat there for an hour before departure.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

Cramped seating for me. Luckily it wasn’t a long flight

5 hour delay. They blamed the weather but it was the computer issues they had been dealing with for days.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

long flights are never truly comfortable but the airline did their best. crew was great and the flight was safe.

The captain was amazing and kept us informed throughout that there would be some rough air. The flight also got delayed but we were able to actually leave on time, which was great.

Horrible experience. They delayed our flight 7 hours!! We had to seat at the airport with kids on 4th July all day!

The flight was delayed an hour and a half while you tried to fix the plane so I missed my connecting flight in Chicago. In Chicago, it took an hour to get the luggage. Then the conveyor belt was broken where I have to transfer my flight from an international flight to the continuing flight so I had to carry a large suitcase through the airport. The elevators were broken in the airport. I paid people to carry the luggage for me up the escalators in two different areas. The person who helped me get the new flight was outstanding. The temperature in the airport in Chicago was horrible. We were all sweating. It was the day from hell. That was after two hours in a security line in Athens. I have TSA pre-checked and global entry and I still waited. Two hours in a security line. Something has got to be done to stream line this service. After I’ve been through all of that in Athens, why do I have to go through it again in Chicago. It was the worst travel experience I have had in a long time. Your bathrooms have gotten so small that you can hardly get your butt on the toilet. You’ve taken the airspace out of the inside of the top of the toilet. It really makes for a miserable experience. Also on a 4 1/2 hour flight from Chicago to Los Angeles. The only thing we’re given is a bag of pretzels. REALLY!!

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Excellent all round, first time flying United. App is very helpful.

Unfortunately this is not a happy ending comment. Positive: flown United before no issue Negative: it only takes one bad experience to not plan future travel with United Cancún departure was delayed by 1h20 minutes, connection in Chicago was 1h30 minutes. Flight departure time 6:08 Miraculously 7 of us ran 4 kilometres through Chicago to arrive at 6:00 to be told very rudely by the 2 unprofessional United attendants you missed your flight and that we should of arrived early. Did I mention that reason I was flying? I received a call that my brother was dying and to get home. They provided no assistance would not answer any of our questions, ignorantly walked away. Deplorable

If United expects people to use their own devices for entertainment they should put charging outlets in each seating area. I arrived with 14%battery power. That is not good when you arrive anywhere and need to communicate for transportation.

Boarding was fast and orderly from Mx to Houston. The air around our feet was very cold, it made the flight very uncomfortable.

It was cancelled at the last moment and the customer services seemed unnoticed to this change and hanged me off the phone the first time I called.

Staff especially Alan Hernandez was a great help with arrangements for my partner and me sit together. This made the trip do much more enjoyable. Thanks so much.

I was charge $90 for my bag more then the fight crazy!! And the plain hit a couple of birds on the take off bird strikes we returned back and had to change planes bad customer service everyone has an attitude problem!!! Bad experience!!!

They closed the gate over 25 minutes before departure and I didn’t get to board.

They no longer offer anything free to eat or drink, everything is sold, not even a bottle of water is offered for free.

The terminal and gate was never the right one announced in the Viva App, neither in screens, moved from one terminal to another

NOTHING.. THEY CANCEL MY FLIGHT WITHOUT NOTICE AND ENDED UP BUYING A NEW ONE..

Ridiculous fees for seats and restrictions of 10kg carry on. Cheap a$$ airline

Viva continues to strive for the worst airline experience ever.

Viva aerobús didn’t let me check in to my flight even when there was more than an hour before take off.

Everything you need to know for your flight from Monterrey to Illinois

Information on your arrival and departure airports