$109+ Cheap flights from Baltimore to Portland, ME (BWI - PWM)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — PWM
Sep 6 — Sep 131
Round-trip
1 adult, Economy
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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 January or April, booked 55 days in advance, depart on a Tuesday or Monday and return on a Wednesday
Cheap flight deals from Baltimore to Portland
Cheapest
Best
Last-minute
One-way
Cheapest flights from Baltimore to PortlandExplore 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 7, 2026.
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 7, 2026.
This Southwest deal was found by Cheapflights users on 8/3. 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.
Sat 9/57:30 pm -
Nonstop1h 35m
Fri 9/111:05 pm -
Nonstop1h 40m
Deal found 8/3![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 8/4. 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 9/57:30 pm -
Nonstop1h 35m
Wed 9/95:45 am -
Nonstop1h 40m
Deal found 8/4![Southwest logo]()
$233
This Delta deal was found by Cheapflights users on 8/5. 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.
Sun 9/66:15 am -
1 stop5h 47m
Tue 9/156:00 am -
1 stop6h 56m
Deal found 8/5![Delta logo]()
$248
This Southwest deal was found by Cheapflights users on 8/5. 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 9/197:30 pm -
Nonstop1h 35m
Tue 9/225:45 am -
Nonstop1h 40m
Deal found 8/5![Southwest logo]()
$249
This Delta deal was found by Cheapflights users on 8/3. 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 9/52:18 pm -
1 stop7h 13m
Wed 9/231:59 pm -
2 stops7h 31m
Deal found 8/3![Delta logo]()
$253
This Delta deal was found by Cheapflights users on 8/5. 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 9/122:03 pm -
1 stop6h 57m
Wed 9/166:00 am -
1 stop6h 56m
Deal found 8/5![Delta logo]()
$259
This Southwest deal was found by Cheapflights users on 8/4. 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 9/97:40 pm -
Nonstop1h 35m
Fri 9/111:05 pm -
Nonstop1h 40m
Deal found 8/4![Southwest logo]()
$264
This Delta deal was found by Cheapflights users on 8/4. 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 9/156:10 am -
2 stops9h 29m
Wed 9/231:59 pm -
2 stops7h 31m
Deal found 8/4![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 8/5. 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 10/510:25 pm -
Nonstop1h 30m
Tue 10/65:40 am -
Nonstop1h 45m
Deal found 8/5![Southwest logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Sun 8/307:52 pm -
1 stop13h 20m
Tue 9/18:00 am -
2 stops13h 30m
Deal found 8/2![Multiple Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 8/4. 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.
Fri 9/44:25 pm -
1 stop5h 35m
Wed 9/91:42 pm -
1 stop5h 51m
Deal found 8/4![American Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 8/3. 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.
Fri 8/284:56 pm -
1 stop6h 17m
Wed 9/21:12 pm -
2 stops8h 16m
Deal found 8/3![Delta logo]()
$295
Best flights from Baltimore to PortlandDiscover carefully curated flight deals from Baltimore to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 7, 2026.
Discover carefully curated flight deals from Baltimore to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 7, 2026.
This Southwest deal was found by Cheapflights users on 8/3. 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.
Sun 9/69:25 pm -
Nonstop1h 30m
Sat 9/125:40 am -
Nonstop1h 35m
Deal found 8/3![Southwest logo]()
$233
This Delta deal was found by Cheapflights users on 8/3. 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 10/312:30 pm -
2 stops8h 45m
Tue 10/64:47 pm -
1 stop6h 17m
Deal found 8/3![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 8/6. 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 9/18:15 am -
Nonstop1h 40m
Sat 9/57:25 am -
Nonstop1h 35m
Deal found 8/6![Southwest logo]()
$233
This Southwest deal was found by Cheapflights users on 8/2. 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.
Wed 8/268:15 am -
Nonstop1h 40m
Sat 8/295:40 am -
Nonstop1h 35m
Deal found 8/2![Southwest logo]()
$249
This Southwest deal was found by Cheapflights users on 8/5. 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 9/218:55 pm -
Nonstop1h 35m
Sat 9/265:40 am -
Nonstop1h 35m
Deal found 8/5![Southwest logo]()
$249
This Delta deal was found by Cheapflights users on 8/4. 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.
Sun 8/306:15 am -
1 stop5h 47m
Wed 9/24:47 pm -
1 stop4h 41m
Deal found 8/4![Delta logo]()
$336
This Southwest deal was found by Cheapflights users on 8/6. 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 9/258:55 pm -
Nonstop1h 35m
Mon 9/285:55 am -
Nonstop1h 35m
Deal found 8/6![Southwest logo]()
$351
This Delta deal was found by Cheapflights users on 8/3. 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.
Wed 8/196:15 am -
1 stop5h 47m
Tue 8/256:30 am -
2 stops10h 19m
Deal found 8/3![Delta logo]()
$479
This Southwest deal was found by Cheapflights users on 8/2. 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.
Thu 10/18:20 am -
Nonstop1h 30m
Mon 10/55:20 am -
Nonstop1h 45m
Deal found 8/2![Southwest logo]()
$402
This Delta deal was found by Cheapflights users on 8/6. 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 9/2612:30 pm -
2 stops8h 45m
Tue 9/2911:35 am -
2 stops9h 55m
Deal found 8/6![Delta logo]()
$569
This Delta deal was found by Cheapflights users on 8/6. 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 9/410:25 am -
1 stop12h 48m
Wed 9/912:55 pm -
2 stops8h 33m
Deal found 8/6![Delta logo]()
$609
Last-minute flights from Baltimore to PortlandDiscover last-minute flight deals from Baltimore to Portland. Data last updated August 7, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Portland. Data last updated August 7, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/3. 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.
Fri 8/284:56 pm -
1 stop6h 17m
Wed 9/21:12 pm -
2 stops8h 16m
Deal found 8/3![Delta logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Sun 8/307:52 pm -
1 stop13h 20m
Tue 9/18:00 am -
2 stops13h 30m
Deal found 8/2![Multiple Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 8/4. 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.
Fri 9/44:25 pm -
1 stop5h 35m
Wed 9/91:42 pm -
1 stop5h 51m
Deal found 8/4![American Airlines logo]()
$290
This Southwest deal was found by Cheapflights users on 8/3. 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.
Sat 9/57:30 pm -
Nonstop1h 35m
Fri 9/111:05 pm -
Nonstop1h 40m
Deal found 8/3![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 8/5. 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 9/57:30 pm -
Nonstop1h 35m
Wed 9/95:45 am -
Nonstop1h 40m
Deal found 8/5![Southwest logo]()
$233
This Delta deal was found by Cheapflights users on 8/3. 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 9/52:18 pm -
1 stop7h 13m
Wed 9/231:59 pm -
2 stops7h 31m
Deal found 8/3![Delta logo]()
$253
This Delta deal was found by Cheapflights users on 8/5. 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.
Sun 9/66:15 am -
1 stop5h 47m
Tue 9/156:00 am -
1 stop6h 56m
Deal found 8/5![Delta logo]()
$248
This Southwest deal was found by Cheapflights users on 8/4. 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 9/97:40 pm -
Nonstop1h 35m
Fri 9/111:05 pm -
Nonstop1h 40m
Deal found 8/4![Southwest logo]()
$264
This Delta deal was found by Cheapflights users on 8/5. 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 9/122:03 pm -
1 stop6h 57m
Wed 9/166:00 am -
1 stop6h 56m
Deal found 8/5![Delta logo]()
$259
This Southwest deal was found by Cheapflights users on 8/3. 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.
Mon 9/148:55 pm -
Nonstop1h 35m
Sat 10/105:35 am -
Nonstop1h 45m
Deal found 8/3![Southwest logo]()
$280
This Delta deal was found by Cheapflights users on 8/4. 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 9/156:10 am -
2 stops9h 29m
Wed 9/231:59 pm -
2 stops7h 31m
Deal found 8/4![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 8/5. 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 9/197:30 pm -
Nonstop1h 35m
Tue 9/225:45 am -
Nonstop1h 40m
Deal found 8/5![Southwest logo]()
$249
One-way flights from Baltimore to PortlandSearch for one-way flight options from Baltimore to Portland. Find affordable one-way fares based on user searches. Data last updated August 7, 2026.
Search for one-way flight options from Baltimore to Portland. Find affordable one-way fares based on user searches. Data last updated August 7, 2026.
This Southwest deal was found by Cheapflights users on 8/4. 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 9/118:55 pm -
Nonstop1h 35m
Deal found 8/4![Southwest logo]()
$109
This Delta deal was found by Cheapflights users on 8/6. 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 9/52:18 pm -
1 stop7h 13m
Deal found 8/6![Delta logo]()
$119
This Southwest deal was found by Cheapflights users on 8/6. 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 8/291:30 pm -
Nonstop1h 30m
Deal found 8/6![Southwest logo]()
$125
This Delta deal was found by Cheapflights users on 8/4. 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 9/76:15 am -
1 stop5h 47m
Deal found 8/4![Delta logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 9/16:24 am -
2 stops35h 21m
Deal found 8/2![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 8/311:20 pm -
2 stops31h 59m
Deal found 8/6![Multiple Airlines logo]()
$132
This Delta deal was found by Cheapflights users on 8/7. 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 9/3012:30 pm -
2 stops10h 47m
Deal found 8/7![Delta logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 10/38:19 am -
1 stop9h 32m
Deal found 8/5![Multiple Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 9/88:45 am -
2 stops25h 43m
Deal found 8/5![Multiple Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Sun 8/309:32 pm -
2 stops25h 06m
Deal found 8/2![Multiple Airlines logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/238:19 am -
2 stops8h 15m
Deal found 8/6![Multiple Airlines logo]()
$149
Find 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 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $217 (Southwest) |
One-way from | $109 (Southwest) |
Popular in | November |
Cheapest in | January |
Average price | $372 |
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 7, 2026.
Use the filters below to find and compare flights from Baltimore to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BaltimorePortland
BWI Baltimore/Washington - PWM Portland
BWIPWM
Baltimore/Washington
Sun 9/6
9:25 pm-10:55 pm
Nonstop1h 30m
Portland
Sat 9/12
5:40 am-7:15 am
Nonstop1h 35m
$233
BaltimorePortland
BWI Baltimore/Washington - PWM Portland
BWIPWM
Baltimore/Washington
Tue 9/1
8:15 am-9:55 am
Nonstop1h 40m
Portland
Sat 9/5
7:25 am-9:00 am
Nonstop1h 35m
$233
BaltimorePortland
BWI Baltimore/Washington - PWM Portland
BWIPWM
Baltimore/Washington
Wed 8/26
8:15 am-9:55 am
Nonstop1h 40m
Portland
Sat 8/29
5:40 am-7:15 am
Nonstop1h 35m
$249
BaltimorePortland
BWI Baltimore/Washington - PWM Portland
BWIPWM
Baltimore/Washington
Mon 9/21
8:55 pm-10:30 pm
Nonstop1h 35m
Portland
Sat 9/26
5:40 am-7:15 am
Nonstop1h 35m
$249
BaltimorePortland
BWI Baltimore/Washington - PWM Portland
BWIPWM
Baltimore/Washington
Sat 10/3
12:30 pm-9:15 pm
2 stops8h 45m
Portland
Tue 10/6
4:47 pm-11:04 pm
1 stop6h 17m
$329
BaltimorePortland
BWI Baltimore/Washington - PWM Portland
BWIPWM
Baltimore/Washington
Sun 8/30
6:15 am-12:02 pm
1 stop5h 47m
Portland
Wed 9/2
4:47 pm-9:28 pm
1 stop4h 41m
$336
BaltimorePortland
BWI Baltimore/Washington - PWM Portland
BWIPWM
Baltimore/Washington
Fri 9/25
8:55 pm-10:30 pm
Nonstop1h 35m
Portland
Mon 9/28
5:55 am-7:30 am
Nonstop1h 35m
$351
BaltimorePortland
BWI Baltimore/Washington - PWM Portland
BWIPWM
Baltimore/Washington
Thu 10/1
8:20 am-9:50 am
Nonstop1h 30m
Portland
Mon 10/5
5:20 am-7:05 am
Nonstop1h 45m
$402
BaltimorePortland
BWI Baltimore/Washington - PWM Portland
BWIPWM
Baltimore/Washington
Wed 8/19
6:15 am-12:02 pm
1 stop5h 47m
Portland
Tue 8/25
6:30 am-4:49 pm
2 stops10h 19m
$479
BaltimorePortland
BWI Baltimore/Washington - PWM Portland
BWIPWM
Baltimore/Washington
Sat 9/26
12:30 pm-9:15 pm
2 stops8h 45m
Portland
Tue 9/29
11:35 am-9:30 pm
2 stops9h 55m
$569
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Baltimore to Portland
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 Baltimore to Portland in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Baltimore-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Portland, Maine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Baltimore-Portland, Maine 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 Baltimore-Portland, Maine 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 Baltimore to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Baltimore with our price prediction graph.
BWI-PWM
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?
Booking 54 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 $293). Flying from Baltimore to Portland, Maine in November is currently the most expensive (average of $649). 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 7, 2026.
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 21% on your trip compared to booking a flight in the afternoon.
What is the cheapest day to fly from Baltimore to Portland, Maine?
Use this chart to determine the cheapest time to fly round-trip from Baltimore to Portland. Price data was last updated on August 1, 2026.
Travelers seeking maximum savings on their Baltimore to Portland, Maine flight should consider departing on Monday afternoons when fares are most often at their lowest. Tuesday afternoons 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 7, 2026.
Read through reviews of airlines operating flights from Baltimore to Portland, such as Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
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.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsNorth Conway
Lewiston
Brunswick
Conway
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Top airline flying from Baltimore to Portland
Discover the top airline 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 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$260 | Average$414 | FlexibilityNo cancel fee | On-time63% |