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Portland

$90+ Cheap flights from Chicago (CHI) 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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — PWM
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Portland are usually found in February or March, booked 61 days in advance, depart on a Tuesday or Thursday and return on a Thursday

Cheap flight deals from Chicago to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$254
(Delta)

One-way from

$90
(American Airlines)

Popular in

April

Cheapest in

February

Average price

$479

Good round-trip deal

$279 or less

Good one-way deal

$132 or less
Provider with most accurate pricing for Chicago (CHI)-Portland flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Portland flights.
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From Chicago (CHI) to Portland
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One-way flight from Chicago (CHI) to Portland
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Highest demand for flights based on searches. 5% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Portland.
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Price to beat on a one-way flight from Chicago (CHI) to Portland.
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Find flight deals from Chicago to Portland

Cheapest flights from Chicago to Portland
Explore the most affordable flight options available from Chicago to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This JetBlue deal was found by Cheapflights users on 4/22. 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.
Fri 5/94:03 pmORD - PWM
1 stop5h 56mJetBlue
Tue 5/203:35 pmPWM - ORD
1 stop7h 19mJetBlue
Deal found 4/22$250
This Delta deal was found by Cheapflights users on 4/22. 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.
Tue 5/66:35 amORD - PWM
2 stops8h 28mDelta
Fri 5/912:37 pmPWM - ORD
1 stop4h 53mDelta
Deal found 4/22$254
This Delta deal was found by Cheapflights users on 4/22. 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.
Tue 5/63:02 pmMDW - PWM
2 stops7h 13mDelta
Fri 5/912:37 pmPWM - MDW
1 stop7h 08mDelta
Deal found 4/22$254
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 7/105:56 pmORD - PWM
1 stop5h 03mUnited Airlines
Mon 7/147:15 pmPWM - ORD
1 stop5h 15mUnited Airlines
Deal found 4/23$256
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 6/118:00 amORD - PWM
Nonstop2h 29mAmerican Airlines
Sun 6/156:00 amPWM - ORD
Nonstop2h 57mAmerican Airlines
Deal found 4/23$258
This Southwest deal was found by Cheapflights users on 4/22. 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.
Mon 9/155:40 amMDW - PWM
1 stop6h 35mSouthwest
Sat 9/205:45 amPWM - MDW
1 stop6h 25mSouthwest
Deal found 4/22$264
This Southwest deal was found by Cheapflights users on 4/23. 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.
Thu 7/101:50 pmORD - PWM
1 stop9h 15mSouthwest
Thu 7/175:40 amPWM - ORD
2 stops13h 15mSouthwest
Deal found 4/23$280
This Mytrip deal was found by Cheapflights users on 4/22. 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.
Wed 5/287:47 amORD - PWM
2 stops29h 01mMultiple Airlines
Sun 6/13:15 pmPWM - ORD
1 stop4h 46mMultiple Airlines
Deal found 4/22$311
This CheapOair deal was found by Cheapflights users on 4/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/19:12 pmMDW - PWM
1 stop20h 17mFrontier
Sat 8/97:25 pmPWM - MDW
1 stop25h 57mFrontier
Deal found 4/22$412

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago 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 April 24, 2025.
Use the filters below to find and compare flights from Chicago to Portland that are best for you.

Fly from

Chicago

Fly to

Portland

Route

Depart

Return

Price

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Fri 5/9

4:03 pm-10:59 pm

1 stop5h 56m

Portland

Tue 5/20

3:35 pm-9:54 pm

1 stop7h 19m

$250

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Tue 5/6

6:35 am-4:03 pm

2 stops8h 28m

Portland

Fri 5/9

12:37 pm-4:30 pm

1 stop4h 53m

$254

ChicagoPortland

MDW - PWM

MDWPWM

Chicago Midway

Tue 5/6

3:02 pm-11:15 pm

2 stops7h 13m

Portland

Fri 5/9

12:37 pm-6:45 pm

1 stop7h 08m

$254

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Thu 7/10

5:56 pm-11:59 pm

1 stop5h 03m

Portland

Mon 7/14

7:15 pm-11:30 pm

1 stop5h 15m

$256

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Wed 6/11

8:00 am-11:29 am

Nonstop2h 29m

Portland

Sun 6/15

6:00 am-7:57 am

Nonstop2h 57m

$258

ChicagoPortland

MDW - PWM

MDWPWM

Chicago Midway

Mon 9/15

5:40 am-1:15 pm

1 stop6h 35m

Portland

Sat 9/20

5:45 am-11:10 am

1 stop6h 25m

$264

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Thu 7/10

1:50 pm-12:05 am

1 stop9h 15m

Portland

Thu 7/17

5:40 am-5:55 pm

2 stops13h 15m

$280

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Wed 5/28

7:47 am-1:48 pm

2 stops29h 01m

Portland

Sun 6/1

3:15 pm-7:01 pm

1 stop4h 46m

$311

ChicagoPortland

MDW - PWM

MDWPWM

Chicago Midway

Fri 8/1

9:12 pm-6:29 pm

1 stop20h 17m

Portland

Sat 8/9

7:25 pm-8:22 pm

1 stop25h 57m

$412

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Sat 7/5

8:00 am-11:32 am

Nonstop2h 32m

$90

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 21 results
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Compare providers for flights from Chicago to Portland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Portland in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Portland, Maine flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Chicago 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 to Portland

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Portland. Price data was last updated on April 18, 2025.

The best time to book flights from Chicago to Portland, Maine is 61 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 month to book a flight from Chicago to Portland, Maine?

Currently, January is the cheapest month in which you can book a flight from Chicago to Portland, Maine (average of $296). Flying from Chicago to Portland, Maine in May is currently the most expensive (average of $416). 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 CHI to PWM?

Find hourly flight availability from Chicago 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 April 24, 2025.

One of the essential ways to save on airfare from Chicago to Portland, Maine is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 46% on airfare.

What is the cheapest day to fly from Chicago to Portland, Maine?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Portland. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago 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 to Portland, Maine

Explore weekly flight availability from Chicago 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 April 24, 2025.

The most flights from CHI to PWM are scheduled on a Monday (6 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 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 April 24, 2025.
Read reviews from past customers who have flown Southwest, Delta and United Airlines from Chicago to Portland. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,286 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,286 reviews
Southwest
8.0
Very good
4,286 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,920 reviews
Southwest
8.0
Very good
4,286 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,685 reviews
Southwest
8.0
Very good
4,286 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,924 reviews
Southwest
8.0
Very good
4,286 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,286 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Related info for your journey

Find useful and relevant information for your journey from Chicago 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?

    Most people fly into Portland (PWM) if they book a flight to Portland from Chicago. On average, Portland has 3 inbound flights from Chicago per day from 5 airlines. Portland is conveniently located just 2.9 mi from Portland’s city center.

  • What are the cheapest airlines flying from Chicago to Portland, Maine round-trip?

    Delta, at $254, was found to be the cheapest airline from Chicago to Portland, Maine.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Delta is 27% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $90 on American Airlines. Other airlines that offer cheap prices include United Airlines from $100 and JetBlue from $102 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Chicago to Portland, Maine consider choosing SkyWest Airlines (84%), Air New Zealand (84%) or Republic Airways (74%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Chicago to Portland, Maine?

    Looking for the cheapest flight from Chicago to Portland, Maine? While on average our users pay $273, our data indicates the cheapest price to be $104. The most popular route (Chicago O'Hare Intl - Portland), is priced around $183.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chicago to Portland, Maine (average of $296). Flying from Chicago to Portland, Maine in May is currently the most expensive (average of $416). 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
North Conway
Bath
Brunswick
Auburn
Conway
Lewiston

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Alternative routes for Chicago to Portland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Chicago to Portland

Discover the top 5 airlines that operate flights from Chicago 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$87FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$177Average$330FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$191Average$406FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$211Average$386FlexibilityNo cancel feeOn-time69%
DeltaCheapest$228Average$479FlexibilityNo cancel feeOn-timeN/A

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