Illinois

$145+ Cheap flights from Maine to Illinois

PWM — ORD
Dec 2 — Dec 91
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Find cheap flights from Maine to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheap flight deals from Maine to Illinois

Cheapest flights from Maine to Illinois

Tue 11/248:49 am -
1 stop7h 24m
Fri 11/2710:50 am -
Nonstop2h 26m
Deal found 10/30$349
Wed 12/24:24 pm -
1 stop6h 00m
Sat 12/59:53 am -
1 stop5h 00m
Deal found 11/1$351
Mon 12/712:44 pm -
Nonstop3h 16m
Thu 12/108:30 am -
Nonstop2h 32m
Deal found 11/1$353
Fri 12/46:00 am -
2 stops11h 22m
Fri 12/115:19 pm -
1 stop5h 33m
Deal found 11/2$354
Tue 11/172:05 pm -
1 stop6h 00m
Tue 12/82:39 pm -
1 stop7h 41m
Deal found 10/31$354
Tue 11/1712:45 pm -
1 stop7h 10m
Tue 12/86:00 am -
1 stop5h 10m
Deal found 10/31$354
Tue 11/2410:07 am -
1 stop15h 36m
Tue 12/18:15 am -
2 stops24h 12m
Deal found 10/29$355
Wed 12/24:52 pm -
1 stop6h 21m
Sat 12/511:14 am -
2 stops9h 13m
Deal found 11/2$356
Sat 12/55:25 am -
2 stops10h 35m
Thu 12/108:50 am -
1 stop4h 55m
Deal found 11/1$358
Fri 12/46:00 am -
2 stops11h 22m
Tue 12/1511:08 am -
2 stops11h 12m
Deal found 11/2$359
Wed 11/186:27 am -
2 stops9h 22m
Tue 12/13:59 pm -
1 stop6h 34m
Deal found 11/2$359
Tue 11/175:30 am -
1 stop5h 15m
Tue 12/811:59 am -
Nonstop2h 39m
Deal found 10/31$364

Find flight deals from Maine to Illinois

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$335
(Kiwi.com)

One-way from

$145
(United Airlines)

Popular in

July

Cheapest in

May

Average price

$420

Good round-trip deal

$398 or less

Good one-way deal

$227 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 Illinois
One-way flight from Maine to Illinois
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 Illinois.
Price to beat on a one-way flight from Maine to Illinois.

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Maine to Illinois 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

Thu 11/19

12:45 pm-4:18 pm

1 stop4h 33m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$156

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

$180

PortlandChicago

PWM Portland - ORD Chicago O'Hare Intl

PWMORD

Portland

Mon 1/18

5:00 pm-11:50 am

3 stops43h 50m

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

Wed 11/25

5:50 am-1:09 pm

1 stop8h 19m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$187

PortlandChicago

PWM Portland - ORD Chicago O'Hare Intl

PWMORD

Portland

Sat 1/9

6:00 am-1:06 pm

1 stop8h 06m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$187

PortlandChicago

PWM Portland - MDW Chicago Midway

PWMMDW

Portland

Sat 11/21

5:25 pm-11:05 pm

1 stop6h 40m

Chicago Midway

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$200

PortlandChicago

PWM Portland - MDW Chicago Midway

PWMMDW

Portland

Mon 11/16

3:25 pm-9:30 pm

1 stop7h 05m

Chicago Midway

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$200

PortlandChicago

PWM Portland - ORD Chicago O'Hare Intl

PWMORD

Portland

Sat 11/14

6:27 am-1:45 pm

1 stop8h 18m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$200

PortlandChicago

PWM Portland - ORD Chicago O'Hare Intl

PWMORD

Portland

Tue 11/17

2:05 pm-7:05 pm

1 stop6h 00m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$200

PortlandChicago

PWM Portland - ORD Chicago O'Hare Intl

PWMORD

Portland

Wed 11/11

4:50 pm-11:54 pm

2 stops8h 04m

Chicago O'Hare Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Maine to Illinois

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

Cheapflights Insights

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

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

Currently, May is the cheapest month in which you can book a flight from Maine to Illinois (average of $339). Flying from Maine to Illinois in November is currently the most expensive (average of $452). 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 IL?

One of the essential ways to save on airfare from Maine to Illinois is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 30% on airfare.

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

Airfare is below average for this route at the moment.
Maine to Illinois flights typically cost between $413 and $486 in November.
The cheapest round-trip price found within the last 5 days was $349 on United Airlines (Nov 24-Nov 27).

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

The best time to book flights from Maine to Illinois 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 Illinois?

Travelers seeking maximum savings on their Maine to Illinois 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.

Reviews of airlines servicing Illinois

See what other customers who have flown with Southwest,Delta, andUnited Airlines from Maine to Illinois have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Related info for your journey

  • How long is the flight from Maine to Illinois?

    There are many flights that can get you from Maine to Illinois in 5h 58m. Fly via American Airlines, Delta, or United Airlines to get the fastest option. Maine and Illinois are separated by a distance of 897 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $98 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $105 and $124, respectively.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Maine to Illinois (average of $339). Flying from Maine to Illinois in November is currently the most expensive (average of $452). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Maine to Illinois

Top 4 airlines flying from Maine to Illinois

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$209Average$385FlexibilityNo cancel feeOn-time71%
DeltaCheapest$234Average$346FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$465FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$267Average$403FlexibilityNo cancel feeOn-time63%

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