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$78+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — PWM
Jul 16 — Jul 231
Wed 7/16
Wed 7/23
1 adult, Economy
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Cheapflights Tip: The best prices from Baltimore/Washington to Portland are usually found in April or March, booked 46 days in advance, depart on a Saturday or Tuesday 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 July 11, 2025.

Round-trip from

$155
(Southwest)

One-way from

$78
(Southwest)

Popular in

June

Cheapest in

April

Average price

$397
From Baltimore/Washington to Portland
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One-way flight from Baltimore/Washington to Portland
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Highest demand for flights based on searches. 12% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 11, 2025.

This Southwest deal was found by Cheapflights users on 7/9. 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 9/158:15 amBWI - PWM
Nonstop1h 35mSouthwest
Sat 9/205:45 amPWM - BWI
Nonstop1h 35mSouthwest
Deal found 7/9$155
This American Airlines deal was found by Cheapflights users on 7/9. 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.
Thu 9/1110:54 amBWI - PWM
1 stop6h 20mAmerican Airlines
Sat 9/135:10 pmPWM - BWI
1 stop5h 58mAmerican Airlines
Deal found 7/9$159
This Delta deal was found by Cheapflights users on 7/9. 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 11/276:00 amBWI - PWM
1 stop5h 51mDelta
Tue 12/24:55 pmPWM - BWI
1 stop6h 01mDelta
Deal found 7/9$185

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 July 11, 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

Mon 9/8

8:15 am-9:50 am

Nonstop1h 35m

Portland

Tue 9/16

5:50 am-7:25 am

Nonstop1h 35m

$155

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Thu 9/11

10:54 am-5:14 pm

1 stop6h 20m

Portland

Sat 9/13

5:10 pm-11:08 pm

1 stop5h 58m

$159

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Thu 11/27

6:00 am-11:51 am

1 stop5h 51m

Portland

Tue 12/2

4:55 pm-10:56 pm

1 stop6h 01m

$185

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Sat 10/11

8:20 am-9:55 am

Nonstop1h 35m

$78

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Tue 11/18

6:05 pm-10:30 pm

1 stop4h 25m

$79

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Mon 8/11

4:39 pm-12:03 am

1 stop7h 24m

$93

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Sat 10/18

11:19 am-6:44 pm

1 stop7h 25m

$137

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Mon 8/11

7:00 am-5:36 pm

1 stop10h 36m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

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 June 27, 2025.

Booking 46 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, January is the cheapest month in which you can book a flight from Baltimore to Portland, Maine (average of $296). Flying from Baltimore 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 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 July 11, 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 12% on your trip compared to booking a flight in the afternoon.

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 July 6, 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. Thursday mornings 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 July 11, 2025.
Read through reviews of airlines operating flights from Baltimore 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
4,250 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.6

Crew

8.6

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
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.6

Crew

8.6

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
7,952 reviews
Southwest
8.0
Very good
4,250 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.6

Crew

8.6

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
8,846 reviews
Southwest
8.0
Very good
4,250 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.6

Crew

8.6

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
4,250 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.6

Crew

8.6

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.
Frontier
5.9
Fair
3,271 reviews
Southwest
8.0
Very good
4,250 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.6

Crew

8.6

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 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, 2 users have taken a look at flights from Baltimore/Washington to Portland.

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

    Flying on Southwest is currently your cheapest option to Portland, Maine, with prices starting at $155. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $159 and $190, respectively. You may be able to fly from Baltimore to Portland, Maine for 56% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Baltimore to Portland, Maine are Southwest ($78), American Airlines ($80), and Delta ($89).

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

    While on average a flight from Baltimore to Portland, Maine is generally $323, our data shows the cheapest flight currently is $159. When looking at the most popular route, (Baltimore/Washington - Portland), you can expect to pay $155 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, January is the cheapest month in which you can book a flight from Baltimore to Portland, Maine (average of $296). Flying from Baltimore 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 Baltimore?

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

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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 July 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$129Average$318FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$189Average$287FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$246Average$371FlexibilityNo cancel feeOn-time63%

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