HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portland

$79+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — PWM
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Portland with Cheapflights

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 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 August 14, 2025.

Round-trip from

$195
(Southwest)

One-way from

$79
(Mytrip)

Popular in

June

Cheapest in

April

Average price

$411
From Baltimore/Washington to Portland
Search Deals
One-way flight from Baltimore/Washington to Portland
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 August 14, 2025.

This Southwest deal was found by Cheapflights users on 8/11. 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.
Wed 9/108:50 pmBWI - PWM
Nonstop1h 35mSouthwest
Wed 9/175:50 amPWM - BWI
Nonstop1h 35mSouthwest
Deal found 8/11$195
This Southwest deal was found by Cheapflights users on 8/12. 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.
Tue 9/28:15 amBWI - PWM
Nonstop1h 35mSouthwest
Thu 9/48:25 amPWM - BWI
Nonstop1h 35mSouthwest
Deal found 8/12$210
This Southwest deal was found by Cheapflights users on 8/12. 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.
Tue 9/98:50 pmBWI - PWM
Nonstop1h 35mSouthwest
Fri 9/125:50 amPWM - BWI
Nonstop1h 35mSouthwest
Deal found 8/12$217
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Sat 10/2510:45 amBWI - PWM
1 stop6h 24mAmerican Airlines
Wed 10/293:38 pmPWM - BWI
1 stop7h 56mAmerican Airlines
Deal found 8/12$220
This Delta deal was found by Cheapflights users on 8/14. 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 10/255:39 pmBWI - PWM
2 stops6h 26mDelta
Wed 10/294:48 pmPWM - BWI
1 stop6h 14mDelta
Deal found 8/14$225
This Southwest deal was found by Cheapflights users on 8/12. 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 9/269:45 pmBWI - PWM
Nonstop1h 35mSouthwest
Mon 9/295:50 amPWM - BWI
Nonstop1h 35mSouthwest
Deal found 8/12$232
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Sat 10/1810:45 amBWI - PWM
1 stop6h 24mAmerican Airlines
Sat 10/255:59 pmPWM - BWI
1 stop6h 34mAmerican Airlines
Deal found 8/12$235
This Southwest deal was found by Cheapflights users on 8/13. 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.
Sat 12/2712:55 pmBWI - PWM
Nonstop1h 30mSouthwest
Fri 1/25:30 amPWM - BWI
Nonstop1h 45mSouthwest
Deal found 8/13$239
This Delta deal was found by Cheapflights users on 8/13. 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 9/202:10 pmBWI - PWM
1 stop7h 50mDelta
Wed 9/245:00 pmPWM - BWI
2 stops7h 28mDelta
Deal found 8/13$240
This Mytrip deal was found by Cheapflights users on 8/13. 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.
Thu 8/2111:08 amBWI - PWM
1 stop9h 04mMultiple Airlines
Sun 8/248:56 pmPWM - BWI
2 stops23h 57mMultiple Airlines
Deal found 8/13$243
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Mon 9/222:46 pmBWI - PWM
1 stop7h 43mAmerican Airlines
Fri 9/265:10 pmPWM - BWI
1 stop5h 52mAmerican Airlines
Deal found 8/12$247

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 August 14, 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 9/10

8:50 pm-10:25 pm

Nonstop1h 35m

Portland

Wed 9/17

5:50 am-7:25 am

Nonstop1h 35m

$195

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Tue 9/2

8:15 am-9:50 am

Nonstop1h 35m

Portland

Sat 9/6

8:15 am-9:45 am

Nonstop1h 30m

$210

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Sat 9/20

8:25 pm-10:00 pm

Nonstop1h 35m

Portland

Tue 9/23

5:50 am-7:25 am

Nonstop1h 35m

$210

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Wed 9/3

8:15 am-9:50 am

Nonstop1h 35m

Portland

Sat 9/6

8:15 am-9:45 am

Nonstop1h 30m

$210

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Thu 9/4

9:45 pm-11:20 pm

Nonstop1h 35m

Portland

Wed 9/10

9:05 am-10:35 am

Nonstop1h 30m

$210

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Sat 9/6

8:25 pm-10:00 pm

Nonstop1h 35m

Portland

Wed 9/10

9:05 am-10:35 am

Nonstop1h 30m

$210

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Tue 9/2

8:15 am-9:50 am

Nonstop1h 35m

Portland

Thu 9/4

8:25 am-10:00 am

Nonstop1h 35m

$210

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Mon 9/8

6:25 pm-8:00 pm

Nonstop1h 35m

Portland

Wed 9/10

5:50 am-7:25 am

Nonstop1h 35m

$210

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Sat 9/20

4:25 pm-5:55 pm

Nonstop1h 30m

Portland

Wed 9/24

5:50 am-7:25 am

Nonstop1h 35m

$210

BaltimorePortland

BWI - PWM

BWIPWM

Baltimore/Washington

Mon 2/9

10:55 am-12:25 pm

Nonstop1h 30m

Portland

Wed 2/11

3:30 pm-5:15 pm

Nonstop1h 45m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 23 results
1
2
3

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 August 8, 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, 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 August 14, 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 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 August 10, 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 August 14, 2025.
Read through reviews of airlines operating flights from Baltimore to Portland, such as Southwest 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
4,244 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 2 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 United Airlines is currently your cheapest option to Portland, Maine, with prices starting at $189. Another option worth looking into is Southwest, starting at $246 round trip. You may be able to fly from Baltimore to Portland, Maine for 47% 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 Avelo Airlines ($79), American Airlines ($94), and Southwest ($98).

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

    While on average a flight from Baltimore to Portland, Maine is generally $347, our data shows the cheapest flight currently is $97. When looking at the most popular route, (Baltimore/Washington - Portland), you can expect to pay $210 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 Portland?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to Portland

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Boston flights
Baltimore to Boston flights
Dulles Intl to Boston flights
Philadelphia to Boston flights
Dulles Intl to Portland flights
Reagan-National to Portland flights
Philadelphia to Portland flights
Reagan-National to Bangor flights
Dulles Intl to Bangor flights
Philadelphia to Bangor flights
Baltimore to Bangor flights
Reagan-National to Rockland flights
Reagan-National to Augusta flights
Reagan-National to Bar Harbor flights
Philadelphia to Bar Harbor flights
Dulles Intl to Bar Harbor flights
Philadelphia to Augusta flights
Baltimore to Bar Harbor flights
Philadelphia to Rockland flights
Dulles Intl to Augusta flights
Reagan-National to Presque Isle flights
Dulles Intl to Rockland flights
Baltimore to Augusta flights
Baltimore to Rockland flights
Baltimore to Presque Isle flights
Dulles Intl to Presque Isle flights

Top 2 airlines flying from Baltimore to Portland

Discover the top 2 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$287FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$246Average$372FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.