$64+ Cheap flights from Portland, ME to Baltimore (PWM - BWI)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BWI
Nov 2 — Nov 91
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Baltimore 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 Portland to Baltimore/Washington are usually found in January or April, booked 45 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday
Cheap flight deals from Portland to Baltimore
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to BaltimoreExplore 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 October 3, 2026.
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 October 3, 2026.
This Delta deal was found by Cheapflights users on 9/30. 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.
Mon 12/74:53 pm -
1 stop6h 42m
Tue 12/86:00 am -
1 stop5h 57m
Deal found 9/30![Delta logo]()
$127
This Delta deal was found by Cheapflights users on 9/29. 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.
Mon 11/24:47 pm -
1 stop4h 48m
Tue 11/36:10 am -
1 stop5h 47m
Deal found 9/29![Delta logo]()
$224
This Delta deal was found by Cheapflights users on 10/1. 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 10/291:52 pm -
2 stops9h 12m
Thu 11/56:10 am -
1 stop5h 47m
Deal found 10/1![Delta logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 10/3. 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 11/115:09 pm -
2 stops23h 35m
Tue 11/177:05 pm -
1 stop14h 03m
Deal found 10/3![Multiple Airlines logo]()
$268
This Southwest deal was found by Cheapflights users on 9/30. 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 10/225:20 am -
Nonstop1h 45m
Mon 10/268:20 am -
Nonstop1h 30m
Deal found 9/30![Southwest logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 10/3. 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.
Tue 11/105:09 pm -
2 stops23h 05m
Tue 11/177:05 pm -
1 stop14h 03m
Deal found 10/3![Multiple Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 9/29. 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.
Tue 10/275:09 pm -
2 stops45h 07m
Tue 11/37:05 pm -
1 stop14h 03m
Deal found 9/29![Multiple Airlines logo]()
$280
This Delta deal was found by Cheapflights users on 9/30. 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 11/144:50 pm -
1 stop4h 50m
Thu 11/196:00 am -
2 stops9h 16m
Deal found 9/30![Delta logo]()
$284
This KAYAK deal was found by Cheapflights users on 9/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:55 am -
1 stop6h 36m
Fri 10/304:45 pm -
1 stop6h 50m
Deal found 9/30![Delta logo]()
$288
Best flights from Portland to BaltimoreDiscover carefully curated flight deals from Portland to Baltimore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 3, 2026.
Discover carefully curated flight deals from Portland to Baltimore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 3, 2026.
This Delta deal was found by Cheapflights users on 9/29. 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.
Mon 11/24:47 pm -
1 stop4h 48m
Tue 11/36:10 am -
1 stop5h 47m
Deal found 9/29![Delta logo]()
$224
This Southwest deal was found by Cheapflights users on 9/30. 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.
Sun 11/15:20 am -
Nonstop2h 00m
Wed 11/48:15 am -
Nonstop1h 35m
Deal found 9/30![Southwest logo]()
$354
This Delta deal was found by Cheapflights users on 9/29. 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 10/276:28 am -
2 stops10h 23m
Tue 11/36:10 am -
2 stops7h 02m
Deal found 9/29![Delta logo]()
$298
This Southwest deal was found by Cheapflights users on 10/2. 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 10/245:35 am -
Nonstop1h 45m
Mon 10/2610:55 am -
Nonstop1h 30m
Deal found 10/2![Southwest logo]()
$361
This Southwest deal was found by Cheapflights users on 10/2. 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.
Sun 12/611:10 am -
Nonstop1h 40m
Tue 12/88:15 am -
Nonstop1h 35m
Deal found 10/2![Southwest logo]()
$396
This KAYAK deal was found by Cheapflights users on 9/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:42 pm -
2 stops10h 46m
Fri 10/3012:37 pm -
2 stops10h 41m
Deal found 9/30![Delta logo]()
$417
This Southwest deal was found by Cheapflights users on 10/3. 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 11/105:15 am -
Nonstop2h 00m
Sat 11/141:15 pm -
Nonstop1h 30m
Deal found 10/3![Southwest logo]()
$420
This Delta deal was found by Cheapflights users on 10/3. 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 11/144:50 pm -
1 stop4h 50m
Thu 11/196:00 am -
2 stops9h 16m
Deal found 10/3![Delta logo]()
$436
This Southwest deal was found by Cheapflights users on 10/1. 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.
Fri 11/205:20 am -
Nonstop2h 00m
Sun 11/223:00 pm -
Nonstop1h 30m
Deal found 10/1![Southwest logo]()
$431
This Delta deal was found by Cheapflights users on 10/3. 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.
Mon 11/24:47 pm -
1 stop4h 48m
Mon 11/96:00 am -
1 stop5h 58m
Deal found 10/3![Delta logo]()
$475
This Southwest deal was found by Cheapflights users on 9/29. 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 10/195:20 am -
Nonstop1h 45m
Tue 10/209:05 pm -
Nonstop1h 35m
Deal found 9/29![Southwest logo]()
$448
This Delta deal was found by Cheapflights users on 9/30. 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.
Wed 11/1811:39 am -
2 stops11h 48m
Mon 11/236:00 am -
1 stop5h 58m
Deal found 9/30![Delta logo]()
$528
Last-minute flights from Portland to BaltimoreDiscover last-minute flight deals from Portland to Baltimore. Data last updated October 3, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Baltimore. Data last updated October 3, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 9/30. 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 10/225:20 am -
Nonstop1h 45m
Mon 10/268:20 am -
Nonstop1h 30m
Deal found 9/30![Southwest logo]()
$277
This Southwest deal was found by Cheapflights users on 9/30. 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 10/235:20 am -
Nonstop1h 45m
Sat 10/248:15 am -
Nonstop1h 30m
Deal found 9/30![Southwest logo]()
$294
This Delta deal was found by Cheapflights users on 9/30. 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 10/276:28 am -
2 stops10h 23m
Sat 10/316:10 am -
1 stop6h 12m
Deal found 9/30![Delta logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 9/29. 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.
Tue 10/275:09 pm -
2 stops45h 07m
Tue 11/37:05 pm -
1 stop14h 03m
Deal found 9/29![Multiple Airlines logo]()
$280
This Delta deal was found by Cheapflights users on 10/1. 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 10/2911:55 am -
1 stop6h 36m
Thu 11/56:10 am -
1 stop5h 47m
Deal found 10/1![Delta logo]()
$127
This KAYAK deal was found by Cheapflights users on 9/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:55 am -
1 stop6h 36m
Fri 10/304:45 pm -
1 stop6h 50m
Deal found 9/30![Delta logo]()
$288
This Delta deal was found by Cheapflights users on 9/29. 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.
Mon 11/24:47 pm -
1 stop4h 48m
Tue 11/36:10 am -
1 stop5h 47m
Deal found 9/29![Delta logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 10/3. 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.
Tue 11/105:09 pm -
2 stops23h 05m
Tue 11/177:05 pm -
1 stop14h 03m
Deal found 10/3![Multiple Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 10/3. 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 11/115:09 pm -
2 stops23h 35m
Tue 11/177:05 pm -
1 stop14h 03m
Deal found 10/3![Multiple Airlines logo]()
$268
This Delta deal was found by Cheapflights users on 9/30. 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 11/144:50 pm -
1 stop4h 50m
Thu 11/196:00 am -
2 stops9h 16m
Deal found 9/30![Delta logo]()
$284
One-way flights from Portland to BaltimoreSearch for one-way flight options from Portland to Baltimore. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.
Search for one-way flight options from Portland to Baltimore. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.
This Delta deal was found by Cheapflights users on 9/30. 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.
Wed 10/284:47 pm -
1 stop6h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Delta logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 11/165:35 pm -
3 stops40h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$130
This Southwest deal was found by Cheapflights users on 9/30. 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 10/295:20 am -
Nonstop1h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Southwest logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 10/2. 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.
Sat 12/57:12 pm -
2 stops37h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Multiple Airlines logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 10/2. 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.
Tue 11/35:09 pm -
2 stops23h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Multiple Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 9/30. 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.
Tue 12/15:09 pm -
2 stops29h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 10/2. 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.
Sat 10/315:09 pm -
2 stops41h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Multiple Airlines logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:09 pm -
2 stops31h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$155
This Southwest deal was found by Cheapflights users on 9/29. 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 11/245:25 am -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Southwest logo]()
$156
Find 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 October 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $127 (Delta) |
One-way from | $64 (Delta) |
Popular in | March |
Cheapest in | January |
Average price | $409 |
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 7,457,451 searches. Data last updated October 3, 2026.
Use the filters below to find and compare flights from Portland to Baltimore that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Wed 12/2
6:12 am-4:57 pm
2 stops10h 45m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$69
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Tue 10/27
6:28 am-4:51 pm
2 stops10h 23m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$69
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Thu 10/29
1:52 pm-11:04 pm
2 stops9h 12m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$69
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Fri 1/1
5:15 am-7:15 am
Nonstop2h 00m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$156
Quickest round-trip
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Tue 11/24
5:25 am-7:20 am
Nonstop1h 55m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$156
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Fri 11/27
5:20 am-7:20 am
Nonstop2h 00m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$181
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Sat 11/21
5:15 am-7:15 am
Nonstop2h 00m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$181
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Tue 12/29
5:35 am-12:55 pm
1 stop7h 20m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$205
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Mon 11/2
5:20 am-7:20 am
Nonstop2h 00m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$216
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Fri 10/30
1:52 pm-11:04 pm
2 stops9h 12m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$221
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Portland to Baltimore
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 Portland to Baltimore in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland, Maine-Baltimore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Baltimore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Baltimore flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland, Maine-Baltimore 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 Portland, Maine-Baltimore 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 Portland to Baltimore
Have a flexible travel schedule? Discover the best time to fly to Baltimore from Portland with our price prediction graph.
PWM-BWI
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?
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 43 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, January is the cheapest month in which you can book a flight from Portland, Maine to Baltimore (average of $339). Flying from Portland, Maine to Baltimore in March is currently the most expensive (average of $529). 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 October 3, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Baltimore as you normally would.
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 October 3, 2026.
Read reviews from past customers who have flown Southwest 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.
Overall
7.9
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Overall
7.9
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
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.
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Alternative routes for Portland to Baltimore
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Portland and Baltimore flights
Browse other Portland and Baltimore flight options. Last updated on October 3, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on October 3, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Portland to Baltimore
Discover the top airline 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 7,457,451 searches. Data last updated October 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$271 | Average$402 | FlexibilityNo cancel fee | On-time63% |