What airlines fly to Chicago O'Hare Intl Airport?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Maine according to our data. United Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 3 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Chicago O'Hare Intl Airport?

On average, it takes 2h 56m to fly from Maine to Chicago O'Hare Intl Airport if you fly out of Portland (the most popular airport in Maine) and into Chicago O'Hare Intl Airport (the most popular airport in Chicago O'Hare Intl Airport). If you’re flying out of Bangor and into Chicago O'Hare Intl Airport, then the flight time is around 3h.

What is the cheapest airline that flies from Maine to Chicago O'Hare Intl?

American Airlines, JetBlue, and United Airlines are the most popular carriers operating from Maine to Chicago O'Hare Intl

How many flights depart from Maine to Chicago O'Hare Intl Airport on average per day?

As of February 2026, there are 43 flights per day flying from Maine to Chicago O'Hare Intl Airport. The most common time of day flights depart is 4:00PM, with 100% of flights taking off in the afternoon.

How many flights depart from Maine to Chicago O'Hare Intl Airport on average per week?

The number of flights available between Maine and Chicago O'Hare Intl Airport is 302 per week as of February 2026. The most frequent departure day is Fri, with 19% of weekly flights leaving on this day.

When did momondo last update prices for flights from Maine to Chicago O'Hare Intl Airport?

Prices for flights from Maine to Chicago O'Hare Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Maine to Chicago O'Hare Intl Airport?

As of February 2026, there are 6 operators available to choose from for flights from Maine to Chicago O'Hare Intl Airport.

How old do you have to be to fly from Maine to Chicago O'Hare Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maine to Chicago O'Hare Intl Airport.

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$68 Cheap Flights from Maine to Chicago O'Hare Intl Airport in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Maine to Chicago

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 9:10 am

BOS

ORD

3h 10mnonstop

6:02 pm - 1:13 am

ORD

BOS

6h 11m

1 stop

$132Multiple Airlines

Mon, Feb 23 - Wed, Feb 25

3:35 pm - 5:43 pm

BOS

ORD

3h 08mnonstop

7:40 am - 11:05 am

ORD

BOS

2h 25mnonstop

$133JetBlue

Tue, Feb 10 - Wed, Feb 11

3:35 pm - 5:43 pm

BOS

ORD

3h 08mnonstop

6:00 pm - 9:29 pm

ORD

BOS

2h 29mnonstop

$134JetBlue

Sun, Feb 8 - Wed, Feb 11

4:16 pm - 6:16 pm

BOS

ORD

3h 00mnonstop

7:30 am - 10:52 am

ORD

BOS

2h 22mnonstop

$135United Airlines

Mon, Feb 9 - Wed, Feb 11

3:35 pm - 5:43 pm

BOS

ORD

3h 08mnonstop

10:00 am - 1:20 pm

ORD

BOS

2h 20mnonstop

$136JetBlue

Tue, Feb 10 - Fri, Feb 13

7:40 pm - 9:50 pm

BOS

ORD

3h 10mnonstop

6:00 am - 9:27 am

ORD

BOS

2h 27mnonstop

$137American Airlines

Fri, Apr 10 - Mon, Apr 13

7:00 am - 9:10 am

BOS

ORD

3h 10mnonstop

6:02 pm - 1:13 am

ORD

BOS

6h 11m

1 stop

$138Multiple Airlines

Sat, Feb 21 - Tue, Mar 3

5:27 am - 7:11 pm

BOS

ORD

14h 44m

1 stop

5:15 am - 5:15 pm

ORD

BOS

11h 00m

1 stop

$140Spirit Airlines

Wed, Mar 4 - Wed, Mar 11

5:51 pm - 8:04 pm

PWM

ORD

3h 13mnonstop

7:49 pm - 11:27 pm

ORD

PWM

2h 38mnonstop

$209American Airlines

Fri, Apr 10 - Sun, Apr 12

3:05 pm - 9:34 pm

PWM

ORD

7h 29m

1 stop

5:45 pm - 9:09 pm

ORD

PWM

2h 24mnonstop

$219United Airlines

Wed, Feb 25 - Tue, Mar 3

Delta flights from Maine to Chicago O'Hare Intl Airport

Our best Delta deals on Maine to Chicago O'Hare Intl Airport flight tickets

Delta

Apr 2

BOS7:15 amBoston Logan Intl

3h 10m

ORD9:25 amChicago O'Hare Intl

Apr 5

ORD6:15 amChicago O'Hare Intl

2h 25m

BOS9:40 amBoston Logan Intl

$143

Delta

Feb 25

BOS7:15 amBoston Logan Intl

3h 13m

ORD9:28 amChicago O'Hare Intl

Feb 27

ORD7:05 amChicago O'Hare Intl

2h 32m

BOS10:37 amBoston Logan Intl

$147

Delta

Feb 10

BOS11:30 amBoston Logan Intl

3h 09m

ORD1:39 pmChicago O'Hare Intl

Feb 11

ORD10:40 amChicago O'Hare Intl

2h 33m

BOS2:13 pmBoston Logan Intl

$167

JetBlue flights from Maine to Chicago O'Hare Intl Airport

Our best JetBlue deals on Maine to Chicago O'Hare Intl Airport flight tickets

JetBlue

Feb 10

BOS3:35 pmBoston Logan Intl

3h 08m

ORD5:43 pmChicago O'Hare Intl

Feb 11

ORD7:40 amChicago O'Hare Intl

2h 25m

BOS11:05 amBoston Logan Intl

$133

JetBlue

Feb 10

BOS3:35 pmBoston Logan Intl

3h 08m

ORD5:43 pmChicago O'Hare Intl

Feb 12

ORD10:00 amChicago O'Hare Intl

2h 20m

BOS1:20 pmBoston Logan Intl

$134

JetBlue

Feb 10

BOS3:35 pmBoston Logan Intl

3h 08m

ORD5:43 pmChicago O'Hare Intl

Feb 13

ORD10:00 amChicago O'Hare Intl

2h 20m

BOS1:20 pmBoston Logan Intl

$136

momondo Fare Finder

Use the filters below to find and compare flights from Maine to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Mon 2/23

7:00 am-9:10 am

Nonstop3h 10m

Chicago O'Hare Intl

Wed 2/25

6:02 pm-1:13 am

1 stop6h 11m

$132

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 2/10

3:35 pm-5:43 pm

Nonstop3h 08m

Chicago O'Hare Intl

Wed 2/11

7:40 am-11:05 am

Nonstop2h 25m

$133

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sun 2/8

3:35 pm-5:43 pm

Nonstop3h 08m

Chicago O'Hare Intl

Wed 2/11

6:00 pm-9:29 pm

Nonstop2h 29m

$134

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Mon 2/9

4:16 pm-6:16 pm

Nonstop3h 00m

Chicago O'Hare Intl

Wed 2/11

7:30 am-10:52 am

Nonstop2h 22m

$135

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 2/10

3:35 pm-5:43 pm

Nonstop3h 08m

Chicago O'Hare Intl

Fri 2/13

10:00 am-1:20 pm

Nonstop2h 20m

$136

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 4/10

7:40 pm-9:50 pm

Nonstop3h 10m

Chicago O'Hare Intl

Mon 4/13

6:00 am-9:27 am

Nonstop2h 27m

$137

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 2/21

7:00 am-9:10 am

Nonstop3h 10m

Chicago O'Hare Intl

Tue 3/3

6:02 pm-1:13 am

1 stop6h 11m

$138

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Wed 3/4

5:27 am-7:11 pm

1 stop14h 44m

Chicago O'Hare Intl

Wed 3/11

5:15 am-5:15 pm

1 stop11h 00m

$140

PortlandChicago

PWM - ORD

PWMORD

Portland

Fri 4/10

5:51 pm-8:04 pm

Nonstop3h 13m

Chicago O'Hare Intl

Sun 4/12

7:49 pm-11:27 pm

Nonstop2h 38m

$209

PortlandChicago

PWM - ORD

PWMORD

Portland

Wed 2/25

3:05 pm-9:34 pm

1 stop7h 29m

Chicago O'Hare Intl

Tue 3/3

5:45 pm-9:09 pm

Nonstop2h 24m

$219

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 Chicago O'Hare Intl Airport

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 Chicago O'Hare Intl Airport?

The month of January is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Maine averaging around $291.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Thursday when prices can be found for as low as $426. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Maine because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $580.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Maine in the evening is the least expensive time of day to depart. momondo users have found prices as low as $218 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around $471. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Maine to Chicago O'Hare Intl flight route?

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

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $356 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Maine for as low as $233 on momondo.

What cabin class options are available on Maine to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Maine to Chicago O'Hare Intl 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 Chicago O'Hare Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Maine to Chicago O'Hare Intl Airport.

Cheap Maine to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maine to Chicago O'Hare Intl Airport

Best Price Found	$195
Fastest flight time	2h 54m
Direct flights	Every day

The best one-way flight to Chicago O'Hare Intl Airport from Maine in the past 72 hours is $195. The best round-trip flight deal from Maine to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $360.

The fastest flight from Maine to Chicago O'Hare Intl Airport takes 2h 54m

Direct flights go from Maine to Chicago O'Hare Intl Airport every day.

Search flight deals

When did momondo last update prices for flights from Maine to Chicago O'Hare Intl Airport?
Prices for flights from Maine to Chicago O'Hare Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Maine to Chicago O'Hare Intl Airport?
As of February 2026, there are 6 operators available to choose from for flights from Maine to Chicago O'Hare Intl Airport.
How old do you have to be to fly from Maine to Chicago O'Hare Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maine to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Maine to Chicago O'Hare Intl Airport?
Based on momondo bookings for flights between Maine and Chicago O'Hare Intl Airport, the leading plane model is Embraer 175 (Enhanced Winglets), making up 34.77% of the total bookings. Other popular models include Embraer 175 with 16.56%, Boeing 737 MAX 8 with 8.94%, and Airbus A220-300 with 5.96%.

Best airlines flying from Maine to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Maine to Chicago O'Hare Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $114	Free Cancellation	Rating 7.9 8,151 reviews	Search Delta flights
American Airlines	PriceFrom $209	Free Cancellation	Rating 7.2 11,237 reviews	Search American Airlines flights
United Airlines	PriceFrom $227	Free Cancellation	Rating 7.4 9,240 reviews	Search United Airlines flights

Lake Geneva

Schaumburg

South Haven

Rockford

Merrillville

Gurnee

Naperville

Rosemont

New Buffalo

Kenosha

Joliet

Oak Brook

Orland Park

Racine

Hammond

Janesville

Tinley Park

Elgin

Aurora

South Holland

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Maine to Chicago. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Chicago 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 Chicago?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Maine.

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

Of course. momondo tracks the price of Maine to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Chicago O'Hare Intl Airport 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sun 3/8

Sun 3/15

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Chicago

Popular cities

Other flights from Maine

Other flights to Chicago

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in the United States

Flights to New York John F Kennedy Intl Airportfrom $56

Flights to Newark Airportfrom $49

Flights to New York LaGuardia Airportfrom $50

Flights to Dallas/Fort Worth Airportfrom $49

Flights to Washington, D.C. Dulles Intl Airportfrom $58

Flights to Washington, D.C. Reagan-National Airportfrom $75

Flights to Orlando Airportfrom $50

Flights to Chicago Midway Airportfrom $58

Flights to Dallas Love Field Airport

Flights to Chicago Greater Rockford Airport

Cheap flights from Maine to Chicago from $68

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 Chicago departing on 2/10. 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 Chicago

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Delta flights from Maine to Chicago O'Hare Intl Airport

Our best Delta deals on Maine to Chicago O'Hare Intl Airport flight tickets

JetBlue flights from Maine to Chicago O'Hare Intl Airport

Our best JetBlue deals on Maine to Chicago O'Hare Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Maine to Chicago O'Hare Intl Airport that are best for you.

See travel insights to Chicago from

How to get the cheapest flight ticket from Maine to Chicago O'Hare Intl Airport

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of January is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Maine averaging around $291.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest Maine to Chicago O'Hare Intl flight route?

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

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

What cabin class options are available on Maine to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Maine to Chicago O'Hare Intl 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 Chicago O'Hare Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Maine to Chicago O'Hare Intl Airport.

What is the cheapest airline that flies from Maine to Chicago O'Hare Intl?

American Airlines, JetBlue, and United Airlines are the most popular carriers operating from Maine to Chicago O'Hare Intl

What airlines fly to Chicago O'Hare Intl Airport?

How many flights depart from Maine to Chicago O'Hare Intl Airport on average per day?

As of February 2026, there are 43 flights per day flying from Maine to Chicago O'Hare Intl Airport. The most common time of day flights depart is 4:00PM, with 100% of flights taking off in the afternoon.

How many flights depart from Maine to Chicago O'Hare Intl Airport on average per week?

The number of flights available between Maine and Chicago O'Hare Intl Airport is 302 per week as of February 2026. The most frequent departure day is Fri, with 19% of weekly flights leaving on this day.

How long does it take to fly to Chicago O'Hare Intl Airport?

Cheap Maine to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maine to Chicago O'Hare Intl Airport

Best Price Found

Fastest flight time

Direct flights

When did momondo last update prices for flights from Maine to Chicago O'Hare Intl Airport?

How many operators does momondo search for flights from Maine to Chicago O'Hare Intl Airport?

How old do you have to be to fly from Maine to Chicago O'Hare Intl Airport?

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

What is the most popular plane model from Maine to Chicago O'Hare Intl Airport?

Best airlines flying from Maine to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Maine to Chicago O'Hare Intl Airport with momondo

Traveling to a place near Chicago?

Why use momondo?

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

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

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

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

An easier way to manage your Chicago O'Hare Intl Airport 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 Chicago

Popular cities in the United States

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

Maine flight routes

According to popular flight searches on momondo this year

Chicago O'Hare Intl Airport flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Chicago

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Chicago

List of cabin classes available on flights landing in Chicago. Availability may vary depending on flight origin and airline.

Complete your trip to Chicago

Explore popular destinations other users love

According to popular flight searches on momondo this year