$125 Find Cheap Flights from Monterey 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 Monterey to Illinois departing on 8/14. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Monterey 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 Monterey to Illinois, as well as popular online travel agencies
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Cheap Flights from Monterey to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bloomington
Bloomington2 stops$598
St. Louis
St. Louis1 stop$218
Bloomington
Bloomington2 stops$598
St. Louis
St. Louis1 stop$218

Book Cheap Monterey 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 Monterey 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 Monterey to Illinois

Fri, Jul 10 - Tue, Jul 14
Multiple Airlines Logo
10:00 pm - 6:15 pm
MRY
-
STL
18h 15m
1 stop
Multiple Airlines Logo
7:03 pm - 1:34 pm
STL
-
MRY
20h 31m
1 stop
$218Multiple Airlines
Wed, Jul 8 - Tue, Jul 14
Multiple Airlines Logo
2:24 pm - 6:15 pm
MRY
-
STL
25h 51m
1 stop
Multiple Airlines Logo
7:03 pm - 1:34 pm
STL
-
MRY
20h 31m
1 stop
$219Multiple Airlines
Wed, Jul 8 - Sun, Jul 12
Multiple Airlines Logo
2:24 pm - 6:15 pm
MRY
-
STL
25h 51m
1 stop
Multiple Airlines Logo
7:10 pm - 9:10 pm
STL
-
MRY
28h 00m
1 stop
$248Multiple Airlines
Wed, Jul 15 - Wed, Jul 22
Multiple Airlines Logo
2:24 pm - 5:37 am
MRY
-
ORD
13h 13m
1 stop
Multiple Airlines Logo
7:15 am - 1:34 pm
ORD
-
MRY
8h 19m
1 stop
$296Multiple Airlines
Sat, Jul 18 - Sat, Jul 25
United Airlines Logo
2:05 pm - 8:39 pm
MRY
-
ORD
4h 34mnonstop
United Airlines Logo
10:00 am - 12:49 pm
ORD
-
MRY
4h 49mnonstop
$329United Airlines
Sat, Oct 3 - Sat, Oct 10
United Airlines Logo
8:30 am - 6:43 pm
MRY
-
STL
8h 13m
1 stop
United Airlines Logo
7:08 am - 1:06 pm
STL
-
MRY
7h 58m
1 stop
$331United Airlines
Sat, Sep 26 - Wed, Sep 30
American Airlines Logo
12:48 pm - 12:27 am
MRY
-
STL
9h 39m
2 stops
American Airlines Logo
5:43 am - 11:47 am
STL
-
MRY
8h 04m
1 stop
$336American Airlines
Thu, Jul 9 - Sat, Jul 11
American Airlines Logo
12:42 pm - 9:48 pm
MRY
-
STL
7h 06m
1 stop
American Airlines Logo
2:46 pm - 6:28 pm
STL
-
MRY
5h 42m
1 stop
$349American Airlines
Tue, Nov 10 - Sat, Nov 14
Alaska Airlines Logo
3:31 pm - 11:49 pm
MRY
-
ORD
6h 18m
1 stop
Alaska Airlines Logo
7:25 am - 2:54 pm
ORD
-
MRY
9h 29m
1 stop
$349Alaska Airlines
Tue, Aug 18 - Tue, Aug 25
Alaska Airlines Logo
6:00 am - 11:59 pm
MRY
-
ORD
15h 59m
2 stops
Alaska Airlines Logo
2:18 pm - 11:59 pm
ORD
-
MRY
11h 41m
1 stop
$354Alaska Airlines
Booking Insights

KAYAK's insights & trends for Monterey to Illinois flights

Get data-powered insights and trends into flights from Monterey 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 Monterey 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 Monterey to Illinois departing in July.

What is the cheapest Monterey to Illinois flight route?

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

The cheapest ticket to Illinois from Monterey found in the last 5 days was to Chicago, at $339 round-trip. The most popular route is from Monterey (MRY) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $339.

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

The average price for all round-trip flights from Monterey 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 in the afternoon, when round-trip flights cost $398 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 $398.

Can I save money by flying with a layover from Monterey 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $426 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Monterey 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 Monterey to Illinois is October, when tickets cost $179 (return) on average. On the other hand, the most expensive months are April and May, when the average cost of round-trip tickets is $409 and $375 respectively.

Good to know

Low seasonAugust
Cheapest flight$125
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Monterey to St. Louis

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Monterey 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 Monterey to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Monterey 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 Monterey 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 Monterey 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 Monterey 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 Monterey to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Monterey to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Monterey 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 Monterey 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.
7.9
Alaska AirlinesOverall score based on 12540 reviews
8.5Crew
7.8Comfort
8.1Boarding
7.0Food
7.0Entertainment
Airline reviews

Subject: Formal Complaint – Incompetent Service and Denied Boarding on Flight 1409 (CLSVJM – Dear Alaska Airlines Customer Relations, I am writing to file a formal complaint regarding my experience on Flight 1409 departing from Seattle on 6/13/26. As a physician and business owner who frequently coordinates group travel, this was one of the worst airline experiences I have encountered. Upon arrival, I was informed that my check-in boarding pass was not official, despite successfully obtaining it electronically through your website/app with no warnings or indications of issues. My electronic boarding pass was rejected, leading to cancellation/denial of boarding. The gate agent (an older woman) was unhelpful, claimed my name had been announced multiple times (which it had not—she did not even know my name correctly), and mistakenly boarded my traveling companion under my name. Additionally, an older blonde staff member nearly failed to return my passport, highlighting a clear lack of training on your check-in and boarding systems. This chaos forced me onto a later flight while my group waited in Canada, unable to check into our Airbnb or pick up rental cars (as I was the primary booker). The entire incident caused significant business disruption, stress, and additional expenses. I have flown Alaska Airlines previously but will not consider it again without resolution. I request: • Full reimbursement of any additional costs incurred. • Appropriate compensation (vouchers/miles) for the inconvenience and poor service. • Confirmation of corrective actions for Please respond within 7-10 business days. Sincerely, Dr. Chunwen Teng

2.0 MediocreJane, Jun 2026
SMF - SEA
Read more Alaska Airlines reviews

Subject: Formal Complaint – Incompetent Service and Denied Boarding on Flight 1409 (CLSVJM – Dear Alaska Airlines Customer Relations, I am writing to file a formal complaint regarding my experience on Flight 1409 departing from Seattle on 6/13/26. As a physician and business owner who frequently coordinates group travel, this was one of the worst airline experiences I have encountered. Upon arrival, I was informed that my check-in boarding pass was not official, despite successfully obtaining it electronically through your website/app with no warnings or indications of issues. My electronic boarding pass was rejected, leading to cancellation/denial of boarding. The gate agent (an older woman) was unhelpful, claimed my name had been announced multiple times (which it had not—she did not even know my name correctly), and mistakenly boarded my traveling companion under my name. Additionally, an older blonde staff member nearly failed to return my passport, highlighting a clear lack of training on your check-in and boarding systems. This chaos forced me onto a later flight while my group waited in Canada, unable to check into our Airbnb or pick up rental cars (as I was the primary booker). The entire incident caused significant business disruption, stress, and additional expenses. I have flown Alaska Airlines previously but will not consider it again without resolution. I request: • Full reimbursement of any additional costs incurred. • Appropriate compensation (vouchers/miles) for the inconvenience and poor service. • Confirmation of corrective actions for Please respond within 7-10 business days. Sincerely, Dr. Chunwen Teng

Never had so many staff members be rude and disrespectful. I had a staff member sarcastically call me “girly” after making me wait 20 minutes to be seen by her. I was able to print my luggage tag and she told me I was too late to check luggage I said the system obviously disagrees. And you had me wait way too long while you asked every single passenger ahead of me about their Disney vacations. She wasted so much time to then say “girly your bag won’t make it on the plane” I’m not her girly I’m a full grown adult. She needs to learn a hell of a lot of respect

My flight was several times rescheduled and then finally canceled.

The flight itself was great. But we had to wait over an hour to deplane so I missed my train. Not the crews fault. They were wonderful!

Flying into PAE was so easy because it’s baggage claim is quick and accesible. I had a car rental and the counter is inside the baggage claim area, very convenient.

It was a very short flight so there really wasn’t any entertainment my. The little pretzels were good though and the cabin crew was awesome.

The first flight was fine, great crew, but the plane was delayed 45 minutes to go to Seattle because of they were missing a ramp. That would make sense if the plane was actually at the gate. Not if we’re still waiting for a plane. After we landed we waited 30-45 minutes on the tarmac just to get off the plane. Alaska made me miss my connecting flight, wasting my time, and my money. I should honestly be reimbursed, but hey, when does the airline ever actually take accountability? Never.

Over all it was great. My original flight was canceled but they quickly rebooked me. I was frustrated because I had to cancel my entire plans for the day but all considered, not bad. The crew tried to keep us calm while we sat in the plane for was felt was an hour or so but they could use a bit of a script. The seats were comfortable and I would give it another try.

Flight delayed Didn’t send second leg of trip itemerary First class was fair, but not great.

Short trip, was nice to have a drink on the short flight still.

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

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Boarded early, left early, arrived 40 mins early! A win win for me!

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

This flight is a quick way to get to Chicago, but a bit expensive.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

We had a mechanical delay which made us 90 minutes late (9:30 PM) then land and put into the penalty box because a plane was in our gate? What the hell! We should get priority.Damn American.

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

weather delay of almost 2 hours then we landed and our gate wasn't available so we waited another 30 min

Delayed flight more than I hour. When boarding we spent some additional time on the plane before takeoff ....

The flight was delayed significantly and we sat on runway after landing for awhile. Best thing was the flight attendant, Jenny, in first class, who was very professional and attentive. She was excellent - the rest of the flight was not.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

The flight from LA to Chicago was smooth and service was very good overall.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

They lost my baggage and I am still struggling to the information and update

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

Information on your arrival and departure airports