Chicago

$155+ Cheap flights from Maine to Chicago (CHI)

PWM — CHI
Dec 9 — Dec 161
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1. Tell us where you want to go

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Cheap flight deals from Maine to Chicago

Cheapest flights from Maine to Chicago

Fri 12/44:47 pm -
Nonstop3h 13m
Tue 12/811:59 am -
Nonstop2h 39m
Deal found 11/7$349
Fri 12/2512:59 pm -
1 stop5h 45m
Sat 1/99:56 am -
2 stops10h 14m
Deal found 11/5$349
Fri 12/254:28 pm -
Nonstop3h 12m
Tue 1/511:00 am -
Nonstop2h 44m
Deal found 11/5$351
Mon 12/712:44 pm -
Nonstop3h 16m
Thu 12/108:30 am -
Nonstop2h 32m
Deal found 11/4$353
Sun 12/134:53 pm -
2 stops8h 03m
Wed 12/1611:39 am -
2 stops10h 54m
Deal found 11/5$354
Fri 12/44:02 pm -
1 stop6h 22m
Sun 12/68:30 am -
Nonstop2h 32m
Deal found 11/7$359
Wed 12/304:32 pm -
1 stop8h 00m
Tue 1/56:45 am -
1 stop4h 43m
Deal found 11/8$361
Sun 12/207:08 pm -
1 stop5h 53m
Tue 1/511:00 am -
Nonstop2h 44m
Deal found 11/5$361
Tue 11/175:08 pm -
Nonstop2h 57m
Tue 12/811:59 am -
Nonstop2h 39m
Deal found 11/5$364
Thu 12/107:00 am -
1 stop5h 47m
Sun 12/135:29 pm -
1 stop4h 55m
Deal found 11/4$368
Fri 12/256:00 am -
1 stop6h 13m
Mon 1/410:05 am -
1 stop5h 29m
Deal found 11/8$369
Fri 12/43:25 pm -
1 stop7h 05m
Mon 12/76:00 am -
1 stop5h 10m
Deal found 11/8$369

Find flight deals from Maine to Chicago

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$349
(United Airlines)

One-way from

$155
(American Airlines)

Popular in

July

Cheapest in

May

Average price

$420

Good round-trip deal

$420 or less

Good one-way deal

$220 or less
Provider with most accurate pricing for Portland-Chicago (CHI) flight deals.
Provider most trusted by Cheapflights users for Portland-Chicago (CHI) flights.
From Maine to Chicago (CHI)
One-way flight from Maine to Chicago (CHI)
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in November 2026
Price to beat on a round-trip flight from Maine to Chicago (CHI).
Price to beat on a one-way flight from Maine to Chicago (CHI).

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Maine to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandChicago

PWM Portland - ORD Chicago O'Hare Intl

PWMORD

Portland

Tue 1/19

6:17 am-3:53 pm

2 stops10h 36m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$160

PortlandChicago

PWM Portland - ORD Chicago O'Hare Intl

PWMORD

Portland

Sun 1/10

3:10 pm-9:52 pm

1 stop7h 42m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$185

PortlandChicago

PWM Portland - ORD Chicago O'Hare Intl

PWMORD

Portland

Sun 12/20

5:35 am-11:19 am

1 stop6h 44m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$185

PortlandChicago

PWM Portland - ORD Chicago O'Hare Intl

PWMORD

Portland

Fri 12/25

6:00 am-11:13 am

1 stop6h 13m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$185

PortlandChicago

PWM Portland - MDW Chicago Midway

PWMMDW

Portland

Thu 12/3

12:49 pm-6:01 pm

1 stop6h 12m

Chicago Midway

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$185

PortlandChicago

PWM Portland - MDW Chicago Midway

PWMMDW

Portland

Thu 12/17

12:49 pm-6:01 pm

1 stop6h 12m

Chicago Midway

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$185

PortlandChicago

PWM Portland - MDW Chicago Midway

PWMMDW

Portland

Sun 12/6

6:00 am-12:04 pm

1 stop7h 04m

Chicago Midway

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$185

PortlandChicago

PWM Portland - MDW Chicago Midway

PWMMDW

Portland

Fri 12/25

12:59 pm-5:44 pm

1 stop5h 45m

Chicago Midway

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$185

PortlandChicago

PWM Portland - ORD Chicago O'Hare Intl

PWMORD

Portland

Thu 12/17

6:00 am-4:43 pm

2 stops11h 43m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$190

BangorChicago

BGR Bangor - ORD Chicago O'Hare Intl

BGRORD

Bangor

Wed 11/18

10:07 am-3:37 pm

2 stops30h 30m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 59 resultsSorted by cheapest first
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Best time to book a flight from Maine to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Maine with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Maine to Chicago

What is the cheapest month to book a flight from Maine to Chicago?

Currently, May is the cheapest month in which you can book a flight from Maine to Chicago (average of $339). Flying from Maine to Chicago in December is currently the most expensive (average of $453). 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 ME to CHI?

When flying from Maine to Chicago, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 30% versus a flight in the morning.

Weekly flight availability from Maine to Chicago

The most flights from USME to CHI are scheduled on a Friday (7 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Maine to Chicago?

Airfare is below average for this route at the moment.
Maine to Chicago flights typically cost between $373 and $500 in December.
The cheapest round-trip price found within the last 5 days was $349 on United Airlines (Dec 4-Dec 8).

How far ahead should I book a flight from Maine to Chicago?

The best time to book flights from Maine to Chicago is 82 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 day to fly from Maine to Chicago?

Travelers seeking maximum savings on their Maine to Chicago flight should consider departing on Friday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

  • How long is the flight from Maine to Chicago?

    A quick flight from Maine to Chicago can take about 3h 18m. Delta provides one of the quickest options available for as low as $349. The distance from Maine to Chicago is about 897 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Maine to Chicago one-way?

    One-way options have recently been found by users for as low as $98 on Southwest. Other airlines that offer cheap prices include Delta from $124 and American Airlines from $130 one-way.

  • What are the most popular routes from Maine to Chicago?

  • What are the most reliable airlines from Maine to Chicago?

    Consider SkyWest Airlines (94%), United Airlines (85%) or Air New Zealand (84%) when booking your flight. These represent the most reliable airlines when flying from Maine to Chicago.

  • What are the cheapest flights from Maine to Chicago?

    The cheapest flight price from Maine to Chicago is $162. On average you can expect to pay $537. The most popular route, (Boston Logan Intl - Chicago O'Hare Intl), can usually be booked for $241.

  • Can I find deals for flights from Maine to Chicago that include hotel bookings?

    Yes. In addition to deals on Maine to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Maine to Chicago?

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

  • Can I find deals for business class flights from Maine to Chicago?

    Yes. Cheapflights offers flight deals from Maine to Chicago 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 Maine to Chicago?

    Currently, May is the cheapest month in which you can book a flight from Maine to Chicago (average of $339). Flying from Maine to Chicago in December is currently the most expensive (average of $453). 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

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Benton Harbor
Merrillville
Lansing
Valparaiso
Hammond
Saint Joseph
Porter

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Maine to Chicago

Top 4 airlines flying from Maine to Chicago

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$209Average$385FlexibilityNo cancel feeOn-time71%
DeltaCheapest$234Average$346FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$440FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$267Average$403FlexibilityNo cancel feeOn-time63%

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