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$90+ Cheap flights from O'Hare Intl (ORD) to Portland, ME (PWM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PWM
jun. 23 — jun. 301
lun. 6/23
lun. 6/30
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Portland are usually found in August or September, booked 85 days in advance, depart on a Tuesday or Sunday and return on a Thursday

Cheap flight deals from O'Hare Intl to Portland

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 18, 2025.

Round-trip from

$233
(United Airlines)

One-way from

$90
(American Airlines)

Popular in

November

Cheapest in

August

Average price

$350

Good round-trip deal

$288 or less

Good one-way deal

$129 or less
From Chicago O'Hare Intl to Portland
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One-way flight from Chicago O'Hare Intl to Portland
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Highest demand for flights based on searches. 14% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Portland.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Portland.
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Find flight deals from O'Hare Intl to Portland

Cheapest flights from O'Hare Intl to Portland
Explore the most affordable flight options available from O'Hare Intl to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 18, 2025.

This JetBlue deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/191:36 pmORD - PWM
1 stop7h 26mJetBlue
lun. 9/227:09 amPWM - ORD
1 stop6h 01mJetBlue
Deal found 6/16$233
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/315:45 amORD - PWM
1 stop5h 44mDelta
sáb. 9/66:31 amPWM - ORD
1 stop7h 09mDelta
Deal found 6/16$234
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/37:10 pmORD - PWM
Nonstop2h 33mAmerican Airlines
mar. 9/97:53 amPWM - ORD
1 stop7h 13mAmerican Airlines
Deal found 6/18$241
This Mytrip deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/114:26 pmORD - PWM
1 stop24h 47mMultiple Airlines
lun. 7/1412:46 pmPWM - ORD
1 stop5h 35mMultiple Airlines
Deal found 6/16$243
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/261:55 pmORD - PWM
Nonstop2h 42mUnited Airlines
mié. 7/26:10 amPWM - ORD
Nonstop2h 55mUnited Airlines
Deal found 6/17$257
This Sun Country Air deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/66:45 amORD - PWM
1 stop27h 32mSun Country Air
vie. 7/1111:16 amPWM - ORD
1 stop7h 05mSun Country Air
Deal found 6/17$295
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/51:50 pmORD - PWM
1 stop7h 35mSouthwest
vie. 8/88:25 amPWM - ORD
1 stop5h 20mSouthwest
Deal found 6/16$314

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 18, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Portland that are best for you.

Fly from

O'Hare Intl

Fly to

Portland

Route

Depart

Return

Price

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

vie. 9/19

1:36 pm-10:02 pm

1 stop7h 26m

Portland

lun. 9/22

7:09 am-12:10 pm

1 stop6h 01m

$233

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

dom. 8/31

5:45 am-12:29 pm

1 stop5h 44m

Portland

sáb. 9/6

6:31 am-12:40 pm

1 stop7h 09m

$234

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

mié. 9/3

7:10 pm-10:43 pm

Nonstop2h 33m

Portland

mar. 9/9

7:53 am-2:06 pm

1 stop7h 13m

$241

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

vie. 7/11

4:26 pm-6:13 pm

1 stop24h 47m

Portland

lun. 7/14

12:46 pm-5:21 pm

1 stop5h 35m

$243

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

mar. 7/1

10:58 am-2:24 pm

Nonstop2h 26m

Portland

vie. 7/4

2:08 pm-6:40 pm

1 stop5h 32m

$253

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

dom. 7/6

6:45 am-11:17 am

1 stop27h 32m

Portland

vie. 7/11

11:16 am-5:21 pm

1 stop7h 05m

$295

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

mar. 8/5

1:50 pm-10:25 pm

1 stop7h 35m

Portland

vie. 8/8

8:25 am-12:45 pm

1 stop5h 20m

$314

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

vie. 10/31

8:00 am-11:32 am

Nonstop2h 32m

$90

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

vie. 10/31

3:07 pm-11:17 pm

1 stop7h 10m

$100

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

mié. 8/13

6:00 am-1:23 pm

1 stop6h 23m

$102

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 15 results
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Best time to book a flight from O'Hare Intl to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Portland

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Portland, Maine?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Portland. Price data was last updated on June 13, 2025.

To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Portland, Maine, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Portland, Maine?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Portland, Maine (average of $296). Flying from Chicago O'Hare Intl Airport to Portland, Maine in July is currently the most expensive (average of $394). 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 ORD to PWM?

Find hourly flight availability from O'Hare Intl to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 18, 2025.

When flying from Chicago O'Hare Intl Airport to Portland, Maine, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 22% versus a flight in the morning.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Portland, Maine?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Portland. Price data was last updated on June 15, 2025.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Portland, Maine flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago O'Hare Intl Airport to Portland, Maine

Explore weekly flight availability from O'Hare Intl to Portland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated junio 18, 2025.

The most flights from ORD to PWM are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portland, Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated junio 18, 2025.
Read through reviews of airlines operating flights from Chicago to Portland, such as Southwest, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,280 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,964 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,810 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,924 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Portland from Chicago O'Hare Intl?

    For a flight from Chicago O'Hare Intl to Portland, you will be flying into Portland. Portland (PWM) is just 2.9 mi from the center of the city. Portland is the only Portland airport and it handles 7 inbound flights from Chicago O'Hare Intl per day. 4 airlines have flights to Portland from Chicago O'Hare Intl on a regular basis.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Portland, Maine round-trip?

    According to our current data, United Airlines ($233), Delta ($234), and American Airlines ($241) offers the cheapest pricing from Chicago O'Hare Intl Airport to Portland, Maine. You may be able to fly from Chicago O'Hare Intl Airport to Portland, Maine for 39% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Portland, Maine one-way?

    The cheapest airlines for a one-way flight from Chicago O'Hare Intl Airport to Portland, Maine are American Airlines ($90), United Airlines ($100), and JetBlue ($102).

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Portland, Maine?

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to Portland, Maine are Republic Airways (96%), Envoy Air (93%) and SkyWest Airlines (92%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Portland, Maine?

    While on average a flight from Chicago O'Hare Intl Airport to Portland, Maine is generally $471, our data shows the cheapest flight currently is $104. When looking at the most popular route, (Chicago O'Hare Intl - Portland), you can expect to pay $183 for that flight.

  • Can I find deals for flights from O'Hare Intl to Portland that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Portland.

  • Can I find deals for business class flights from O'Hare Intl to Portland?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Portland 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 Chicago O'Hare Intl Airport to Portland, Maine?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Portland, Maine (average of $296). Flying from Chicago O'Hare Intl Airport to Portland, Maine in July is currently the most expensive (average of $394). 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 O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
North Conway
Bath
Brunswick
Auburn
Conway
Lewiston

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Top 4 airlines flying from O'Hare Intl to Portland

Discover the top 4 airlines that operate flights from O'Hare Intl to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$49Average$88FlexibilityNo cancel feeOn-time62%
DeltaCheapest$163Average$479FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$175Average$338FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$213Average$386FlexibilityNo cancel feeOn-time69%

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