$129+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BWI
Sep 30 — Oct 71
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 44 days in advance, depart on a Tuesday or Wednesday 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 August 31, 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 August 31, 2026.
This Southwest deal was found by Cheapflights users on 8/28. 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 9/265:40 am -
Nonstop1h 35m
Tue 9/298:15 am -
Nonstop1h 40m
Deal found 8/28![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 8/27. 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 12/144:53 pm -
1 stop6h 42m
Thu 12/176:00 am -
1 stop5h 57m
Deal found 8/27![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 8/27. 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 8/27![Delta logo]()
$272
This Southwest deal was found by Cheapflights users on 8/26. 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 9/255:55 am -
Nonstop1h 35m
Mon 9/288:55 pm -
Nonstop1h 35m
Deal found 8/26![Southwest logo]()
$275
This Southwest deal was found by Cheapflights users on 8/26. 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 10/85:20 am -
Nonstop1h 45m
Fri 10/1610:25 pm -
Nonstop1h 30m
Deal found 8/26![Southwest logo]()
$293
This Southwest deal was found by Cheapflights users on 8/28. 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 9/265:40 am -
Nonstop1h 35m
Wed 9/307:40 pm -
Nonstop1h 35m
Deal found 8/28![Southwest logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 stops23h 05m
Thu 11/59:52 pm -
1 stop11h 16m
Deal found 8/28![Multiple Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 8/26. 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 9/235:45 am -
Nonstop1h 40m
Sat 9/261:30 pm -
Nonstop1h 30m
Deal found 8/26![Southwest logo]()
$324
This Delta deal was found by Cheapflights users on 8/27. 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 12/14:53 pm -
1 stop6h 42m
Mon 12/76:00 am -
1 stop5h 57m
Deal found 8/27![Delta logo]()
$328
This Delta deal was found by Cheapflights users on 8/26. 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
Sun 11/156:00 am -
1 stop5h 58m
Deal found 8/26![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 8/28. 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 9/195:40 am -
Nonstop1h 35m
Tue 9/228:15 am -
Nonstop1h 40m
Deal found 8/28![Southwest logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 10/285:09 pm -
2 stops23h 35m
Thu 11/59:52 pm -
1 stop11h 16m
Deal found 8/28![Multiple Airlines logo]()
$335
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 August 31, 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 August 31, 2026.
This Southwest deal was found by Cheapflights users on 8/26. 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 9/255:55 am -
Nonstop1h 35m
Sat 9/261:30 pm -
Nonstop1h 30m
Deal found 8/26![Southwest logo]()
$342
This Delta deal was found by Cheapflights users on 8/26. 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 11/54:47 pm -
1 stop4h 48m
Tue 11/106:00 am -
2 stops9h 16m
Deal found 8/26![Delta logo]()
$373
This Southwest deal was found by Cheapflights users on 8/28. 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 9/255:55 am -
Nonstop1h 35m
Fri 10/210:25 pm -
Nonstop1h 30m
Deal found 8/28![Southwest logo]()
$343
This Southwest deal was found by Cheapflights users on 8/30. 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 9/245:55 am -
Nonstop1h 35m
Sat 9/267:30 pm -
Nonstop1h 35m
Deal found 8/30![Southwest logo]()
$343
This Delta deal was found by Cheapflights users on 8/30. 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.
Fri 10/3011:55 am -
1 stop6h 36m
Sun 11/16:10 am -
1 stop5h 47m
Deal found 8/30![Delta logo]()
$382
This Southwest deal was found by Cheapflights users on 8/27. 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 1/223:25 pm -
Nonstop1h 45m
Sun 1/319:30 pm -
Nonstop1h 30m
Deal found 8/27![Southwest logo]()
$352
This Delta deal was found by Cheapflights users on 8/28. 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.
Fri 1/226:00 am -
2 stops9h 50m
Sun 1/246:00 am -
2 stops10h 59m
Deal found 8/28![Delta logo]()
$420
This Southwest deal was found by Cheapflights users on 8/29. 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.
Sat 10/105:35 am -
Nonstop1h 45m
Mon 10/128:20 am -
Nonstop1h 30m
Deal found 8/29![Southwest logo]()
$377
This Southwest deal was found by Cheapflights users on 8/30. 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 10/235:30 pm -
Nonstop1h 35m
Sun 10/2510:25 pm -
Nonstop1h 30m
Deal found 8/30![Southwest logo]()
$377
This Southwest deal was found by Cheapflights users on 8/26. 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 9/285:55 am -
Nonstop1h 35m
Mon 9/288:55 pm -
Nonstop1h 35m
Deal found 8/26![Southwest logo]()
$390
This Southwest deal was found by Cheapflights users on 8/27. 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 9/185:55 am -
Nonstop1h 35m
Mon 9/218:55 pm -
Nonstop1h 35m
Deal found 8/27![Southwest logo]()
$411
Last-minute flights from Portland to BaltimoreDiscover last-minute flight deals from Portland to Baltimore. Data last updated August 31, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Baltimore. Data last updated August 31, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/28. 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 9/195:40 am -
Nonstop1h 35m
Tue 9/228:15 am -
Nonstop1h 40m
Deal found 8/28![Southwest logo]()
$333
This Southwest deal was found by Cheapflights users on 8/27. 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 9/195:40 am -
Nonstop1h 35m
Sun 9/209:25 pm -
Nonstop1h 35m
Deal found 8/27![Southwest logo]()
$383
This Southwest deal was found by Cheapflights users on 8/26. 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 9/235:45 am -
Nonstop1h 40m
Sat 9/261:30 pm -
Nonstop1h 30m
Deal found 8/26![Southwest logo]()
$324
This Southwest deal was found by Cheapflights users on 8/26. 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 9/255:55 am -
Nonstop1h 35m
Mon 9/288:55 pm -
Nonstop1h 35m
Deal found 8/26![Southwest logo]()
$275
This Southwest deal was found by Cheapflights users on 8/26. 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 9/255:55 am -
Nonstop1h 35m
Sat 9/261:30 pm -
Nonstop1h 30m
Deal found 8/26![Southwest logo]()
$342
This Southwest deal was found by Cheapflights users on 8/28. 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 9/255:55 am -
Nonstop1h 35m
Fri 10/210:25 pm -
Nonstop1h 30m
Deal found 8/28![Southwest logo]()
$343
This Southwest deal was found by Cheapflights users on 8/26. 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 9/255:55 am -
Nonstop1h 35m
Sun 9/279:25 pm -
Nonstop1h 35m
Deal found 8/26![Southwest logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 8/28. 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.
Fri 9/257:00 am -
2 stops26h 25m
Fri 10/23:04 pm -
1 stop18h 04m
Deal found 8/28![Multiple Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 8/28. 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.
Fri 9/257:00 am -
2 stops26h 25m
Sun 9/279:32 pm -
1 stop11h 36m
Deal found 8/28![Multiple Airlines logo]()
$380
This Southwest deal was found by Cheapflights users on 8/28. 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 9/265:40 am -
Nonstop1h 35m
Tue 9/298:15 am -
Nonstop1h 40m
Deal found 8/28![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 8/28. 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 9/265:40 am -
Nonstop1h 35m
Wed 9/307:40 pm -
Nonstop1h 35m
Deal found 8/28![Southwest logo]()
$295
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 August 31, 2026.
Search for one-way flight options from Portland to Baltimore. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
This Southwest deal was found by Cheapflights users on 8/26. 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 9/165:45 am -
Nonstop1h 40m
Deal found 8/26![Southwest logo]()
$129
This Delta deal was found by Cheapflights users on 8/27. 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 10/272:09 pm -
1 stop6h 11m
Deal found 8/27![Delta logo]()
$134
This Southwest deal was found by Cheapflights users on 8/26. 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 9/255:55 am -
Nonstop1h 35m
Deal found 8/26![Southwest logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 stops31h 24m
Deal found 8/29![Multiple Airlines logo]()
$148
This Delta deal was found by Cheapflights users on 8/27. 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 9/292:10 pm -
1 stop7h 15m
Deal found 8/27![Delta logo]()
$152
This Delta deal was found by Cheapflights users on 8/26. 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.
Fri 11/134:03 pm -
2 stops7h 24m
Deal found 8/26![Delta logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 8/28. 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.
Fri 9/257:00 am -
2 stops26h 25m
Deal found 8/28![Multiple Airlines logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 12m
Deal found 8/27![Multiple Airlines logo]()
$165
This Southwest deal was found by Cheapflights users on 8/26. 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 10/145:40 am -
Nonstop1h 45m
Deal found 8/26![Southwest logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/237:00 am -
3 stops26h 25m
Deal found 8/27![Multiple Airlines logo]()
$171
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 August 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (Southwest) |
One-way from | $129 (Southwest) |
Popular in | March |
Cheapest in | January |
Average price | $359 |
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 August 31, 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
Quickest round-trip
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Fri 9/25
5:55 am-7:30 am
Nonstop1h 35m
Baltimore/Washington
Sat 9/26
1:30 pm-3:00 pm
Nonstop1h 30m
$342
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Fri 9/25
5:55 am-7:30 am
Nonstop1h 35m
Baltimore/Washington
Fri 10/2
10:25 pm-11:55 pm
Nonstop1h 30m
$343
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Thu 9/24
5:55 am-7:30 am
Nonstop1h 35m
Baltimore/Washington
Sat 9/26
7:30 pm-9:05 pm
Nonstop1h 35m
$343
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Fri 1/22
3:25 pm-5:10 pm
Nonstop1h 45m
Baltimore/Washington
Sun 1/31
9:30 pm-11:00 pm
Nonstop1h 30m
$352
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Thu 11/5
4:47 pm-9:35 pm
1 stop4h 48m
Baltimore/Washington
Tue 11/10
6:00 am-3:16 pm
2 stops9h 16m
$373
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Sat 10/10
5:35 am-7:20 am
Nonstop1h 45m
Baltimore/Washington
Mon 10/12
8:20 am-9:50 am
Nonstop1h 30m
$377
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Fri 10/23
5:30 pm-7:05 pm
Nonstop1h 35m
Baltimore/Washington
Sun 10/25
10:25 pm-11:55 pm
Nonstop1h 30m
$377
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Fri 10/30
11:55 am-6:31 pm
1 stop6h 36m
Baltimore/Washington
Sun 11/1
6:10 am-11:57 am
1 stop5h 47m
$382
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Mon 9/28
5:55 am-7:30 am
Nonstop1h 35m
Baltimore/Washington
Mon 9/28
8:55 pm-10:30 pm
Nonstop1h 35m
$390
PortlandBaltimore
PWM Portland - BWI Baltimore/Washington
PWMBWI
Portland
Fri 9/18
5:55 am-7:30 am
Nonstop1h 35m
Baltimore/Washington
Mon 9/21
8:55 pm-10:30 pm
Nonstop1h 35m
$411
Showing 1-10 of 22 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 August.
| 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 | |
| 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 August 31, 2026.
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 evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 35% 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 August 31, 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.
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - 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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Portland and Baltimore flights
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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 August 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$271 | Average$395 | FlexibilityNo cancel fee | On-time63% |