$134 Find Cheap Flights from Monterrey to Illinois

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 4/20. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Monterrey to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Monterrey to Illinois, as well as popular online travel agencies
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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$249
St. Louis
St. Louis1 stop$445
Chicago
Chicagononstop$249
St. Louis
St. Louis1 stop$445

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, Sep 3 - Mon, Sep 7
Viva Logo
7:25 pm - 11:45 pm
MTY
-
ORD
3h 20mnonstop
Viva Logo
1:30 am - 3:55 am
ORD
-
MTY
3h 25mnonstop
$249Viva
Thu, Sep 3 - Mon, Sep 7
Viva Logo
7:25 pm - 11:45 pm
MTY
-
ORD
3h 20mnonstop
Viva Logo
1:30 am - 3:55 am
ORD
-
MTY
3h 25mnonstop
$250Viva
Tue, Apr 7 - Sun, Apr 12
Multiple Airlines Logo
6:18 pm - 2:51 pm
MTY
-
ORD
19h 33m
1 stop
Multiple Airlines Logo
6:30 am - 11:42 am
ORD
-
MTY
30h 12m
1 stop
$254Multiple Airlines
Tue, May 12 - Sun, May 17
Multiple Airlines Logo
6:18 pm - 2:35 pm
MTY
-
ORD
19h 17m
1 stop
Multiple Airlines Logo
6:00 am - 11:42 am
ORD
-
MTY
30h 42m
1 stop
$263Multiple Airlines
Wed, May 6 - Fri, May 15
Volaris Logo
6:00 am - 7:04 pm
MTY
-
MDW
12h 04m
1 stop
Volaris Logo
8:23 pm - 7:30 am
MDW
-
MTY
12h 07m
1 stop
$360Volaris
Thu, Apr 23 - Sun, Apr 26
Delta Logo
10:37 am - 10:28 pm
MTY
-
MDW
10h 51m
2 stops
Delta Logo
6:00 am - 5:40 pm
MDW
-
MTY
12h 40m
1 stop
$390Delta
Tue, Apr 14 - Tue, Apr 21
Delta Logo
10:42 am - 10:28 pm
MTY
-
MDW
10h 46m
2 stops
Delta Logo
6:00 am - 11:40 am
MDW
-
MTY
6h 40m
1 stop
$391Delta
Sat, Jun 6 - Tue, Jun 9
Volaris Logo
8:09 am - 8:23 pm
MTY
-
MDW
11h 14m
1 stop
Volaris Logo
9:53 pm - 9:35 am
MDW
-
MTY
12h 42m
1 stop
$396Volaris
Fri, May 8 - Sat, May 9
Air Canada Logo
9:10 am - 8:09 pm
MTY
-
STL
9h 59m
1 stop
Air Canada Logo
7:05 am - 8:30 pm
STL
-
MTY
14h 25m
1 stop
$451Air Canada
Fri, May 8 - Sat, May 9
Air Canada Logo
9:10 am - 8:09 pm
MTY
-
STL
9h 59m
1 stop
Air Canada Logo
7:05 am - 8:30 pm
STL
-
MTY
14h 25m
1 stop
$521Air Canada
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 September.

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 72 hours was to Chicago, at $264 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 72 hours was $264.

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 $310 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 $595.

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 February, when tickets cost $230 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is $408 and $385 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 Tuesday and avoiding Mondays 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 30% 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$134
Best time to beat the crowds but there is an average 25% increase in price.
Most popular time to fly and prices are also 9% lower on average.
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 $160 one-way - $367 round-trip

Reviews of the top airlines flying 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.
7.4
United AirlinesOverall score based on 9493 reviews
7.7Boarding
7.3Comfort
8.1Crew
6.6Food
7.1Entertainment
Airline reviews

3 hour delay…. Nearly 2 hours sitting on tarmac. Do better, United. Or at least have the sense to not say “we hope you enjoyed your flight with us” upon disembarking.

2.0 MediocreJill, Mar 2026
LGA - ORD
Read more United Airlines reviews

3 hour delay…. Nearly 2 hours sitting on tarmac. Do better, United. Or at least have the sense to not say “we hope you enjoyed your flight with us” upon disembarking.

Flights were on time. Free Wifi on plane. Everything was well organized.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.

They never clean the toilet, and the food is worse

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Chargers didn’t work, no entertainment and we had to wait for taxiing for easily 40 minutes after arriving early. Bags were late too!

No real complaints. The in flight food was much better than I expected. The in flight entertainment was excellent.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Horrible Flight significantly delayed. Not due to united issue. But trying to rebook connection flight and get information about overnight accommodation was difficult. Agent did not seem to care or have any interest to help.

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.

One of the flight was delayed an hour. We then boarded a new flight. We were told to unboard after some other time. To wait for the next flight for another hour. I paid for a short flight that turned in to half a day of travel.

No entertainment, charging, nor wifi on board but I napped for basically the entire time so it was alright. Was allowed to switch seats because the flight was not full but everyone was assigned to the back. Comfortable seats and we got moved to the emergency exit so the extra room was nice.

Painless trip. Only downside: No entertainment system (which we know with Viva & Volaris) and very small seat space. I'm petite and felt squizzed. I'm not sure how most overweight passengers do.

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!!!

The bad thing is they didnt send me the deatils about how much alowed bagage ehight 1 carryon or cheacking bag Also they just send in spanishlanfuage i couldnt understand emails

The boarding process was ridiculous. The boarded groups into a walkway just before the aerobridge (about 20 mins late), whilst we watch the crew stroll casually onto the plane, running late. And then they made us line up on then aerobridge with no aircon for 10 minutes before we boarded. Staff are just as ghetto as the customers. Wouldn’t fly again

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

No empathy for my situation, arriving at the check-in counter 5 minutes after the deadline to deposit baggage due to a very delayed incoming intercontinental flight. The attendant simply stared past my shoulder and picked up the microphone to announce a "reminder that all passengers must arrive at least one hour before the flight" before speaking to the passenger behind me. I understand that there are rules above deadlines but at least show some damn empathy. It was Christmas morning and I'd been travelling for 20 hours for goodness sake!

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

Information on your arrival and departure airports