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$80+ Cheap flights from Baltimore to Portland, ME (BWI - 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — PWM
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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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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3. Compare prices and book

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Cheapflights Tip: The best prices from Baltimore/Washington to Portland are usually found in April or March, booked 83 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from Baltimore to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) 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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$232
(Kiwi.com)

One-way from

$108
(Southwest)

Popular in

October

Cheapest in

April

Average price

$533
Provider with most accurate pricing for Baltimore/Washington-Portland flight deals.
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Provider most trusted by Cheapflights users for Baltimore/Washington-Portland flights.
Search Deals
From Baltimore/Washington to Portland
Search Deals
One-way flight from Baltimore/Washington to Portland
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Baltimore to Portland

Cheapest flights from Baltimore to Portland
Explore the most affordable flight options available from Baltimore to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:57 pmBWI - PWM
1 stop13h 09mMultiple Airlines
Mon 12/159:46 amPWM - BWI
1 stop22h 43mMultiple Airlines
Deal found 10/19$232
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:41 amBWI - PWM
2 stops48h 00mMultiple Airlines
Wed 12/1011:16 amPWM - BWI
1 stop21h 13mMultiple Airlines
Deal found 10/19$245
This Southwest deal was found by Cheapflights users on 10/19. 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 12/48:45 pmBWI - PWM
Nonstop1h 30mSouthwest
Sat 12/612:40 pmPWM - BWI
Nonstop1h 35mSouthwest
Deal found 10/19$249
This Southwest deal was found by Cheapflights users on 10/19. 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.
Fri 12/58:45 pmBWI - PWM
Nonstop1h 30mSouthwest
Sat 12/612:40 pmPWM - BWI
Nonstop1h 35mSouthwest
Deal found 10/19$259
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:36 pmBWI - PWM
2 stops35h 30mMultiple Airlines
Wed 11/1911:16 amPWM - BWI
1 stop9h 59mMultiple Airlines
Deal found 10/19$264
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/179:36 pmBWI - PWM
2 stops37h 00mMultiple Airlines
Mon 11/249:46 amPWM - BWI
1 stop27h 35mMultiple Airlines
Deal found 10/19$276
This American Airlines deal was found by Cheapflights users on 10/19. 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 12/32:46 pmBWI - PWM
1 stop6h 51mAmerican Airlines
Wed 12/107:02 amPWM - BWI
1 stop6h 46mAmerican Airlines
Deal found 10/19$291
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/48:37 amBWI - PWM
1 stop24h 29mMultiple Airlines
Sat 12/66:18 pmPWM - BWI
1 stop21h 26mMultiple Airlines
Deal found 10/19$293
This Delta deal was found by Cheapflights users on 10/19. 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.
Thu 12/410:47 amBWI - PWM
1 stop5h 20mDelta
Sat 12/62:34 pmPWM - BWI
2 stops8h 29mDelta
Deal found 10/19$306
This Kiwi.com deal was found by Cheapflights users on 10/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/266:53 amBWI - PWM
1 stop26h 13mMultiple Airlines
Wed 10/2911:21 amPWM - BWI
2 stops21h 13mMultiple Airlines
Deal found 10/17$307
This Delta deal was found by Cheapflights users on 10/19. 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.
Sat 12/610:47 amBWI - PWM
1 stop5h 13mDelta
Fri 12/124:53 pmPWM - BWI
1 stop6h 10mDelta
Deal found 10/19$311

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore 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 October 20, 2025.
Use the filters below to find and compare flights from Baltimore to Portland that are best for you.

Fly from

Baltimore

Fly to

Portland

Route

Depart

Return

Price

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Wed 12/3

10:41 am-10:41 am

2 stops48h 00m

Portland

Wed 12/10

11:16 am-8:29 am

1 stop21h 13m

$245

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Wed 11/12

9:36 pm-9:06 am

2 stops35h 30m

Portland

Wed 11/19

11:16 am-9:15 pm

1 stop9h 59m

$264

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Sat 1/17

10:35 am-12:05 pm

Nonstop1h 30m

Portland

Tue 1/20

5:45 am-7:40 am

Nonstop1h 55m

$281

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Sat 12/6

10:47 am-4:00 pm

1 stop5h 13m

Portland

Fri 12/12

4:53 pm-11:03 pm

1 stop6h 10m

$311

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Fri 12/12

12:55 pm-2:25 pm

Nonstop1h 30m

Portland

Sun 12/14

11:50 am-1:30 pm

Nonstop1h 40m

$320

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Mon 12/15

10:40 am-12:10 pm

Nonstop1h 30m

Portland

Sun 1/4

5:30 pm-7:10 pm

Nonstop1h 40m

$330

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Wed 11/19

1:25 pm-2:55 pm

Nonstop1h 30m

Portland

Sun 12/21

3:15 pm-5:10 pm

Nonstop1h 55m

$339

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Thu 10/30

9:29 am-9:06 am

1 stop23h 37m

Portland

Mon 11/3

6:05 pm-10:45 pm

2 stops28h 40m

$348

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Fri 10/31

9:41 pm-10:36 am

1 stop12h 55m

Portland

Mon 11/3

6:05 pm-10:45 pm

2 stops28h 40m

$353

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Wed 2/18

1:25 pm-2:55 pm

Nonstop1h 30m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 20 results
1
2

Compare providers for flights from Baltimore 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 Baltimore to Portland in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 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 Baltimore-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Portland, Maine flights, Cheapflights users trust FlightHub the most. FlightHub 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 Baltimore-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 Baltimore to Portland

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

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

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to Portland. Price data was last updated on October 17, 2025.

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Baltimore to Portland, Maine. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Baltimore to Portland, Maine?

Currently, March is the cheapest month in which you can book a flight from Baltimore to Portland, Maine (average of $43). Flying from Baltimore to Portland, Maine in September is currently the most expensive (average of $117). 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 BWI to PWM?

Find hourly flight availability from Baltimore 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 October 20, 2025.

A simple way to save on the total cost of your ticket is to fly from Baltimore to Portland, Maine in the evening. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Baltimore to Portland. Price data was last updated on October 12, 2025.

Travelers seeking maximum savings on their Baltimore to Portland, Maine flight should consider departing on Saturday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 20, 2025.
Read through reviews of airlines operating flights from Baltimore to Portland, such as Southwest, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,239 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,239 reviews
Southwest
8.0
Very good
4,239 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,991 reviews
Southwest
8.0
Very good
4,239 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,024 reviews
Southwest
8.0
Very good
4,239 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

  • What airports do I use to fly from Baltimore to Portland?

    If you book a flight from Baltimore to Portland, you will be flying from Baltimore/Washington to Portland. Flights to Portland (PWM) from Baltimore/Washington (BWI) take 1h 30m for a nonstop flight. There are 2 flights from Baltimore/Washington to Portland per day from 3 airlines.

  • How popular is this Baltimore to Portland, Maine flight route?

    Within the past month, 1 users have taken a look at flights from Baltimore/Washington to Portland.

  • How long is the flight from Baltimore to Portland, Maine?

    Departing from Baltimore to Portland, Maine will take you 1h 30m. There are 451 mi between Baltimore and Portland, Maine. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on United Airlines is currently your cheapest option to Portland, Maine, with prices starting at $169. Additional round-trip tickets that might be worth considering are offered by Southwest and American Airlines, with the lowest prices starting at $244 and $318, respectively. You may be able to fly from Baltimore to Portland, Maine for 54% less than the average price by searching for these airlines.

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

    While on average a flight from Baltimore to Portland, Maine is generally $282, our data shows the cheapest flight currently is $108. When looking at the most popular route, (Baltimore/Washington - Portland), you can expect to pay $249 for that flight.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Baltimore to Portland, Maine (average of $43). Flying from Baltimore to Portland, Maine in September is currently the most expensive (average of $117). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Auburn
Conway

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Alternative routes for Baltimore to Portland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Baltimore to Portland

Discover the top 3 airlines that operate flights from Baltimore 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$169Average$249FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$244Average$369FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$318Average$458FlexibilityNo cancel feeOn-time71%

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