What airlines fly to Illinois?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from Maine according to our data. United Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Maine to Illinois?

United Airlines, JetBlue, and Southwest are the most popular carriers operating from Maine to Illinois

How many flights depart from Maine to Illinois on average per day?

The number of flights available between Maine and Illinois is 94 per day as of September 2025. The most frequent departure time is 4:00PM, with 58% of daily flights leaving in the afternoon.

How many flights depart from Maine to Illinois on average per week?

The number of flights available between Maine and Illinois is 661 per week as of September 2025. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.

How long is the flight from Maine to Illinois?

The flight from Maine to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Portland (a popular airport in Maine) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 2h 51m on average. If you fly from Bangor (another popular airport in Maine) to Chicago O'Hare Intl Airport, then the average flight time is 3h 06m.

When did momondo last update prices for flights from Maine to Illinois?

Prices for flights from Maine to Illinois are updated daily.

How many operators does momondo search for flights from Maine to Illinois?

There are 7 operators available for flights from Maine to Illinois as of September 2025.

How old do you have to be to fly from Maine to Illinois?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Maine to Illinois.

What documentation or ID do you need to fly to Illinois?

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$64 Cheap Flights from Maine to Illinois in 2025/26

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Find the cheapest flights from Maine to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:30 am - 10:35 amBOS-ORD

3h 05mnonstop

8:38 pm - 12:06 amORD-BOS

2h 28mnonstop

$124JetBlue

Find Deal

mar., nov. 18 - jue., dic. 4

6:16 am - 6:38 pmBOS-ORD

13h 22m1 stop

6:00 am - 1:20 pmORD-BOS

6h 20m1 stop

$126Spirit Airlines

Find Deal

mié., oct. 15 - mar., oct. 21

2:35 pm - 4:15 pmBOS-MDW

2h 40mnonstop

9:20 pm - 12:40 amMDW-BOS

2h 20mnonstop

$127Southwest

Find Deal

sáb., oct. 4 - lun., oct. 6

7:55 pm - 9:53 pmBOS-ORD

2h 58mnonstop

7:10 am - 10:35 amORD-BOS

2h 25mnonstop

$127Delta

Find Deal

mié., nov. 19 - jue., nov. 20

6:00 am - 7:56 amBOS-ORD

2h 56mnonstop

9:20 pm - 12:50 amORD-BOS

2h 30mnonstop

$131United Airlines

Find Deal

jue., oct. 16 - mié., oct. 22

5:05 am - 12:20 pmBOS-MDW

8h 15m2 stops

6:05 am - 9:20 amMDW-BOS

2h 15mnonstop

$132Southwest

Find Deal

sáb., oct. 4 - dom., oct. 5

3:17 pm - 5:07 pmBOS-ORD

2h 50mnonstop

7:30 am - 11:02 amORD-BOS

2h 32mnonstop

$134United Airlines

Find Deal

mar., oct. 7 - mié., oct. 8

12:59 pm - 3:16 pmBOS-ORD

3h 17mnonstop

2:42 pm - 6:11 pmORD-BOS

2h 29mnonstop

$138American Airlines

Find Deal

sáb., dic. 13 - mié., dic. 17

5:24 am - 7:25 amBOS-ORD

3h 01mnonstop

8:25 pm - 11:54 pmORD-BOS

2h 29mnonstop

$145American Airlines

Find Deal

vie., oct. 31 - sáb., nov. 1

7:20 am - 9:22 amBOS-ORD

3h 02mnonstop

3:50 pm - 7:23 pmORD-BOS

2h 33mnonstop

$148Delta

Find Deal

vie., oct. 31 - mar., nov. 4

Delta flights from Maine to Illinois

Our best Delta deals on Maine to Illinois flight tickets

Delta

Nov 19

BOS7:55 pmBoston Logan Intl

2h 58m

ORD9:53 pmChicago O'Hare Intl

Nov 20

ORD7:10 amChicago O'Hare Intl

2h 25m

BOS10:35 amBoston Logan Intl

$127

Find similar

Delta

Oct 31

BOS7:20 amBoston Logan Intl

3h 02m

ORD9:22 amChicago O'Hare Intl

Nov 4

ORD3:50 pmChicago O'Hare Intl

2h 33m

BOS7:23 pmBoston Logan Intl

$148

Find similar

Delta

Oct 1

BOS4:05 pmBoston Logan Intl

2h 54m

ORD5:59 pmChicago O'Hare Intl

Oct 6

ORD7:10 pmChicago O'Hare Intl

2h 35m

BOS10:45 pmBoston Logan Intl

$157

Find similar

United Airlines flights from Maine to Illinois

Our best United Airlines deals on Maine to Illinois flight tickets

United Airlines

Oct 16

BOS6:00 amBoston Logan Intl

2h 56m

ORD7:56 amChicago O'Hare Intl

Oct 22

ORD9:20 pmChicago O'Hare Intl

2h 30m

BOS12:50 amBoston Logan Intl

$131

Find similar

United Airlines

Oct 7

BOS3:17 pmBoston Logan Intl

2h 50m

ORD5:07 pmChicago O'Hare Intl

Oct 8

ORD7:30 amChicago O'Hare Intl

2h 32m

BOS11:02 amBoston Logan Intl

$134

Find similar

United Airlines

Oct 15

BOS6:00 amBoston Logan Intl

2h 56m

ORD7:56 amChicago O'Hare Intl

Oct 17

ORD4:00 pmChicago O'Hare Intl

2h 31m

BOS7:31 pmBoston Logan Intl

$136

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

mar. 11/18

8:30 am-10:35 am

Nonstop3h 05m

Chicago O'Hare Intl

jue. 12/4

8:38 pm-12:06 am

Nonstop2h 28m

$124

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

mié. 10/15

6:16 am-6:38 pm

1 stop13h 22m

Chicago O'Hare Intl

mar. 10/21

6:00 am-1:20 pm

1 stop6h 20m

$126

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

sáb. 10/4

2:35 pm-4:15 pm

Nonstop2h 40m

Chicago Midway

lun. 10/6

9:20 pm-12:40 am

Nonstop2h 20m

$127

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

mié. 11/19

7:55 pm-9:53 pm

Nonstop2h 58m

Chicago O'Hare Intl

jue. 11/20

7:10 am-10:35 am

Nonstop2h 25m

$127

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

jue. 10/16

6:00 am-7:56 am

Nonstop2h 56m

Chicago O'Hare Intl

mié. 10/22

9:20 pm-12:50 am

Nonstop2h 30m

$131

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

sáb. 10/4

5:05 am-12:20 pm

2 stops8h 15m

Chicago Midway

dom. 10/5

6:05 am-9:20 am

Nonstop2h 15m

$132

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

mar. 10/7

3:17 pm-5:07 pm

Nonstop2h 50m

Chicago O'Hare Intl

mié. 10/8

7:30 am-11:02 am

Nonstop2h 32m

$134

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

sáb. 12/13

12:59 pm-3:16 pm

Nonstop3h 17m

Chicago O'Hare Intl

mié. 12/17

2:42 pm-6:11 pm

Nonstop2h 29m

$138

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

vie. 10/31

5:24 am-7:25 am

Nonstop3h 01m

Chicago O'Hare Intl

sáb. 11/1

8:25 pm-11:54 pm

Nonstop2h 29m

$145

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

vie. 10/31

7:20 am-9:22 am

Nonstop3h 02m

Chicago O'Hare Intl

mar. 11/4

3:50 pm-7:23 pm

Nonstop2h 33m

$148

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Maine to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Maine is in September. Flight prices, which tend to average around $283, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $304.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Maine to Illinois is on a Thursday when prices can be found for as low as $440. Flights from Maine to Illinois on a Sunday will generally be more expensive and average around $621. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is at noon. Flights from Maine to Illinois during this time can be as low as $432. Flights in the morning are often more expensive with an average ticket price of $493.

What is the cheapest Maine to Illinois flight route?

Fly from Portland to Chicago O'Hare Intl for the best Maine - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $379 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Maine for as low as $228 on momondo.

What cabin class options are available on Maine to Illinois flights?

There are 4 cabin classes available to choose from on Maine to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Maine to Illinois flights?

No. A direct flight is the cheapest option for a flight between Maine to Illinois.

Cheap Maine to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maine to Illinois

Best Price Found	$182
Fastest flight time	2h 30m
Direct flights	Every day
Airports in Illinois	1 airport

The best one-way flight to Illinois from Maine in the past 72 hours is $182. The best round-trip flight deal from Maine to Illinois found on momondo in the last 72 hours is $316.

The fastest flight from Maine to Illinois takes 2h 30m

Direct flights go from Maine to Illinois every day.

There is 1 airport near Illinois: Chicago Midway (MDW)

Search flight deals

When did momondo last update prices for flights from Maine to Illinois?
Prices for flights from Maine to Illinois are updated daily.
How many operators does momondo search for flights from Maine to Illinois?
There are 7 operators available for flights from Maine to Illinois as of September 2025.
How old do you have to be to fly from Maine to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Maine to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Maine to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Maine to Illinois is Embraer 175 (18.94% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (17.87%), Boeing 737-700 (11.89%), and Canadair (Bombardier) Regional Jet 700 (11.36%).

Best airlines flying from Maine to Illinois

Compare and see reviews for airlines that fly from Maine to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $124	Free Cancellation	Rating 7.9 7,971 reviews	Search Delta flights
American Airlines	PriceFrom $203	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $229	Free Cancellation	Rating 7.4 8,922 reviews	Search United Airlines flights
Southwest	PriceFrom $264	Free Cancellation	Rating 8.0 4,244 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Maine to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Maine to Illinois for you.

Can I find flights from Maine to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Maine which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Maine to Illinois?

Once you have performed a search for Maine to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Maine to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Maine to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Illinois

Popular cities in Illinois

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Flights to Seattlefrom $102

Cheap flights from Maine to Illinois from $64

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maine to Illinois departing on 11/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Maine to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Delta flights from Maine to Illinois

Our best Delta deals on Maine to Illinois flight tickets

United Airlines flights from Maine to Illinois

Our best United Airlines deals on Maine to Illinois flight tickets

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

See travel insights to Illinois from

How to get the cheapest flight ticket from Maine to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is at noon. Flights from Maine to Illinois during this time can be as low as $432. Flights in the morning are often more expensive with an average ticket price of $493.

What is the cheapest Maine to Illinois flight route?

Fly from Portland to Chicago O'Hare Intl for the best Maine - Illinois flight prices

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

What cabin class options are available on Maine to Illinois flights?

There are 4 cabin classes available to choose from on Maine to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Maine to Illinois flights?

No. A direct flight is the cheapest option for a flight between Maine to Illinois.

What is the cheapest airline that flies from Maine to Illinois?

United Airlines, JetBlue, and Southwest are the most popular carriers operating from Maine to Illinois

What airlines fly to Illinois?

How many flights depart from Maine to Illinois on average per day?

The number of flights available between Maine and Illinois is 94 per day as of September 2025. The most frequent departure time is 4:00PM, with 58% of daily flights leaving in the afternoon.

How many flights depart from Maine to Illinois on average per week?

The number of flights available between Maine and Illinois is 661 per week as of September 2025. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.

How long is the flight from Maine to Illinois?

Cheap Maine to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maine to Illinois

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

When did momondo last update prices for flights from Maine to Illinois?

How many operators does momondo search for flights from Maine to Illinois?

How old do you have to be to fly from Maine to Illinois?

What documentation or ID do you need to fly to Illinois?

What is the most popular plane model from Maine to Illinois?

Best airlines flying from Maine to Illinois

Compare and see reviews for airlines that fly from Maine to Illinois with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Maine to Illinois?

Can I find flights from Maine to Illinois with flexible booking policies on momondo?

How can momondo help me find flights from Maine to Illinois?

I’m not ready to book a flight from Maine to Illinois right now. Can momondo alert me if prices change?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo