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$123+ Cheap flights from Portland, ME to Baltimore (PWM - BWI)

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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BWI
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Baltimore/Washington are usually found in March or January, booked 28 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Portland to Baltimore

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Baltimore (BWI). 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 3, 2025.

Round-trip from

$245
(Southwest)

One-way from

$123
(Southwest)

Popular in

July

Cheapest in

March

Average price

$492
From Portland to Baltimore/Washington
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One-way flight from Portland to Baltimore/Washington
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Highest demand for flights based on searches. 12% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 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 Portland to Baltimore

Cheapest flights from Portland to Baltimore
Explore the most affordable flight options available from Portland to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Southwest deal was found by Cheapflights users on 7/1. 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 9/42:00 pmPWM - BWI
Nonstop1h 35mSouthwest
Wed 9/108:50 pmBWI - PWM
Nonstop1h 35mSouthwest
Deal found 7/1$245
This American Airlines deal was found by Cheapflights users on 7/1. 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 8/212:48 pmPWM - BWI
1 stop6h 04mAmerican Airlines
Mon 8/257:56 amBWI - PWM
1 stop7h 06mAmerican Airlines
Deal found 7/1$255
This Delta deal was found by Cheapflights users on 7/1. 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 9/46:33 pmPWM - BWI
1 stop4h 44mDelta
Wed 9/1012:23 pmBWI - PWM
2 stops11h 02mDelta
Deal found 7/1$260
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Fri 7/2512:40 pmPWM - BWI
3 stops29h 38mMultiple Airlines
Mon 7/288:22 pmBWI - PWM
1 stop15h 51mMultiple Airlines
Deal found 7/1$426

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to Baltimore 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 3, 2025.
Use the filters below to find and compare flights from Portland to Baltimore that are best for you.

Fly from

Portland

Fly to

Baltimore

Route

Depart

Return

Price

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Thu 9/4

2:00 pm-3:35 pm

Nonstop1h 35m

Baltimore/Washington

Wed 9/10

8:50 pm-10:25 pm

Nonstop1h 35m

$245

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Thu 8/21

2:48 pm-8:52 pm

1 stop6h 04m

Baltimore/Washington

Mon 8/25

7:56 am-3:02 pm

1 stop7h 06m

$255

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Thu 9/4

6:33 pm-11:17 pm

1 stop4h 44m

Baltimore/Washington

Wed 9/10

12:23 pm-11:25 pm

2 stops11h 02m

$260

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Fri 7/25

12:40 pm-6:18 pm

3 stops29h 38m

Baltimore/Washington

Mon 7/28

8:22 pm-12:13 pm

1 stop15h 51m

$426

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Thu 8/14

8:25 am-10:00 am

Nonstop1h 35m

$123

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Sat 8/30

1:41 pm-2:46 pm

1 stop25h 05m

$124

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Tue 11/4

7:48 am-3:53 pm

1 stop8h 05m

$127

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Tue 8/26

6:33 pm-11:17 pm

1 stop4h 44m

$128

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Thu 9/25

12:18 pm-12:20 am

2 stops12h 02m

$181

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Best time to book a flight from Portland to Baltimore

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

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Baltimore. Price data was last updated on June 27, 2025.

The price you pay for your flight from Portland, Maine to Baltimore may vary depending on when you book. For the best chance of a lower fare, look to book 28 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Portland, Maine to Baltimore (average of $241). Flying from Portland, Maine to Baltimore in March is currently the most expensive (average of $290). 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 PWM to BWI?

Find hourly flight availability from Portland to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

One of the essential ways to save on airfare from Portland, Maine to Baltimore is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 5% on airfare.

Reviews of airlines servicing Baltimore

Get insights into the airlines that provide service to Baltimore. 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 Baltimore. Reviews last updated July 3, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from Portland to Baltimore. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

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
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

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
7,982 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

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
4,266 reviews

Boarding

8.2

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

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
3,286 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

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 Portland to Baltimore. 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 Portland to Baltimore?

    Baltimore/Washington is the airport most travelers will use when flying to Baltimore from Portland. Booking flights from Portland (PWM) to Baltimore/Washington (BWI) should be relatively easy as there are 2 daily flights to Baltimore from 3 different airlines. 1h 35m is how long a flight from Portland to Baltimore/Washington will take if you book a nonstop flight.

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

    The Portland to Baltimore/Washington flight path was viewed by 41 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Southwest, at $245, was found to be the cheapest airline from Portland, Maine to Baltimore.Alternate airlines to your destination round-trip include American Airlines and Delta. Southwest is priced at 35% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as $123 on Southwest. Other airlines that offer cheap prices include Frontier from $124 and American Airlines from $127 one-way.

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

    Looking at all options, your cheapest flight can be booked for $148. While the most popular route (Portland - Baltimore/Washington) can be booked for $245 on average our data indicates $362 when flying from Portland, Maine to Baltimore.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Portland, Maine to Baltimore (average of $241). Flying from Portland, Maine to Baltimore in March is currently the most expensive (average of $290). 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

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Top 3 airlines flying from Portland to Baltimore

Discover the top 3 airlines that operate flights from Portland to Baltimore. 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 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$203Average$378FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$230Average$482FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$249Average$358FlexibilityNo cancel feeOn-time63%

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