BWI - PWM

$109 Find Cheap Flights from Baltimore to Portland - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baltimore to Portland departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$217
Typical prices: $349-$494
Southwest
Sat 8/29Sat 9/5
BWI - PWM • Non-stop
Cheapest non-stop
$217
Typical prices: $339-$471
Southwest
Tue 8/25Thu 8/27
BWI - PWM • Non-stop
Top airlines
Cheapest • from $217 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with Southwest. Average duration is 1h 32m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 33% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Baltimore to Portland (BWI-PWM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore to Portland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Baltimore to Portland

Sat, Aug 29 - Sat, Sep 5
Southwest Logo
8:15 am - 9:55 am
BWI
-
PWM
1h 40mnonstop
Southwest Logo
10:30 am - 12:10 pm
PWM
-
BWI
1h 40mnonstop
$217Southwest
Sat, Sep 26 - Thu, Oct 1
Southwest Logo
10:10 am - 11:45 am
BWI
-
PWM
1h 35mnonstop
Southwest Logo
10:25 am - 12:00 pm
PWM
-
BWI
1h 35mnonstop
$217Southwest
Thu, Oct 29 - Mon, Nov 2
Southwest Logo
8:20 am - 9:50 am
BWI
-
PWM
1h 30mnonstop
Southwest Logo
5:10 pm - 6:50 pm
PWM
-
BWI
1h 40mnonstop
$217Southwest
Tue, Oct 20 - Sat, Oct 24
Southwest Logo
7:00 pm - 8:30 pm
BWI
-
PWM
1h 30mnonstop
Southwest Logo
5:35 am - 7:20 am
PWM
-
BWI
1h 45mnonstop
$217Southwest
Thu, Nov 5 - Mon, Nov 9
Southwest Logo
10:20 pm - 11:50 pm
BWI
-
PWM
1h 30mnonstop
Southwest Logo
5:20 am - 7:20 am
PWM
-
BWI
2h 00mnonstop
$217Southwest
Tue, Oct 20 - Mon, Oct 26
Southwest Logo
2:00 pm - 3:30 pm
BWI
-
PWM
1h 30mnonstop
Southwest Logo
5:20 am - 7:05 am
PWM
-
BWI
1h 45mnonstop
$217Southwest
Wed, Sep 2 - Sat, Sep 5
Southwest Logo
8:15 am - 9:55 am
BWI
-
PWM
1h 40mnonstop
Southwest Logo
10:30 am - 12:10 pm
PWM
-
BWI
1h 40mnonstop
$217Southwest
Sat, Aug 29 - Tue, Sep 1
Southwest Logo
10:10 am - 11:45 am
BWI
-
PWM
1h 35mnonstop
Southwest Logo
5:45 am - 7:25 am
PWM
-
BWI
1h 40mnonstop
$217Southwest
Tue, Aug 18 - Wed, Aug 26
Delta Logo
5:00 pm - 11:13 pm
BWI
-
PWM
6h 13m
1 stop
Delta Logo
2:14 pm - 9:27 pm
PWM
-
BWI
7h 13m
1 stop
$227Delta
Thu, Nov 5 - Mon, Nov 9
Delta Logo
6:10 am - 11:57 am
BWI
-
PWM
5h 47m
1 stop
Delta Logo
4:40 pm - 11:03 pm
PWM
-
BWI
6h 23m
1 stop
$227Delta
Booking Insights

KAYAK's insights & trends for Baltimore to Portland flights

Get data-powered insights and trends into flights from Baltimore to Portland to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Baltimore to Portland, Maine?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Baltimore to Portland, Maine departing in August.

Flight prices are below average for this route right now.

Flights to Portland, Maine from Baltimore usually cost between $339 and $471 in August.
The lowest price found in the past 5 days was $217 on Southwest (Aug 29-Sep 1).

What’s the cheapest day of the week to fly from Baltimore to Portland?

The average price of all round-trip flights from Baltimore to Portland clicked on KAYAK for each day over the last 12 months.

For Baltimore to Portland, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Portland back to Baltimore, the best deals are generally found on Wednesday, with Monday being the most expensive.

What is the cheapest month to fly from Baltimore to Portland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Baltimore to Portland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Baltimore to Portland is January, where tickets cost $293 (return) on average. On the other hand, the most expensive months are November and March, where the average cost of round-trip tickets is $649 and $561 respectively.

How far in advance should I book a flight from Baltimore to Portland?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Baltimore to Portland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Baltimore to Portland, you should book around 5 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low season

January

Cheapest flight

$109
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Baltimore to Portland

When to book flights from Baltimore to Portland

Are your dates flexible? Find out the best times to travel from Baltimore to Portland based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Baltimore to Portland

  • What is the cheapest flight from Baltimore to Portland?

    In the last 5 days, the lowest price for a flight from Baltimore to Portland was $109 for a one-way ticket and $217 for a round-trip.

  • Do I need a passport to fly between Baltimore and Portland?

    No

  • Which airlines offer Wi-Fi service onboard planes from Baltimore to Portland?

    American Airlines, and JetBlue offer inflight Wi-Fi service on the Baltimore to Portland flight route.

  • Which aircraft models fly most regularly from Baltimore to Portland?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Baltimore to Portland flight route.

  • On which days can I fly direct from Baltimore to Portland?

    There are nonstop flights from Baltimore to Portland on a daily basis.

  • How does KAYAK find such low prices on flights from Baltimore to Portland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Baltimore to Portland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Baltimore to Portland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Baltimore is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Baltimore to Portland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portland with an airline and back to Baltimore with another airline. Booking your flights between Baltimore and PWM can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Baltimore to Portland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portland from Baltimore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Baltimore to Portland

  • Looking for a cheap flight? 25% of our users found flights on this route for $190 or less one-way and $317 or less round-trip.

Prefer to fly direct from Baltimore to Portland?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Baltimore/Washington to Portland.
Find which airlines fly direct from Baltimore/Washington Airport to Portland Airport, which days they fly and book direct flights.

Direct departures

Baltimore/Washington to Portland

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Portland to Baltimore/Washington

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top airline flying from Baltimore to Portland

 
See real verified KAYAK customer reviews for airlines flying from Baltimore to Portland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Baltimore to Portland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4226 reviews
8.1Boarding
8.6Crew
8.0Comfort
7.5Entertainment
7.0Food
Airline reviews

The entire travel day was a disaster from beginning to end. Woke up at two in the morning to make it to San Juan airport in time for a 5:30 am flight to Milwaukee which connected in Baltimore. Massive delays lead to me missing original connection out of Baltimore. Sixteen hours of delays/rebooking/layover time later, arrived in Milwaukee to find that only one of two checked bags made it there (despite the fact that Southwest brought another 737 jet to San Juan to fly us out to our original Baltimore connection—-not squeezed into another booked flight). The flight from Baltimore to Milwaukee was barely half full, so there was no logical reason to ship my bags out of Baltimore on a different flight to Chicago to then ship to Milwaukee. Southwest decided that my bags should not have been on the same connecting flight I WAS ON to Milwaukee, and then proceeded to accidentally leave my larger bag with the important items in Chicago. Terrible logic and support all around. Extremely angered and disappointed with SW. What a clownish operation your company has become!

2.0 MediocreAnonymous, Apr 2026
BWI - MKE
Read more Southwest reviews

The entire travel day was a disaster from beginning to end. Woke up at two in the morning to make it to San Juan airport in time for a 5:30 am flight to Milwaukee which connected in Baltimore. Massive delays lead to me missing original connection out of Baltimore. Sixteen hours of delays/rebooking/layover time later, arrived in Milwaukee to find that only one of two checked bags made it there (despite the fact that Southwest brought another 737 jet to San Juan to fly us out to our original Baltimore connection—-not squeezed into another booked flight). The flight from Baltimore to Milwaukee was barely half full, so there was no logical reason to ship my bags out of Baltimore on a different flight to Chicago to then ship to Milwaukee. Southwest decided that my bags should not have been on the same connecting flight I WAS ON to Milwaukee, and then proceeded to accidentally leave my larger bag with the important items in Chicago. Terrible logic and support all around. Extremely angered and disappointed with SW. What a clownish operation your company has become!

Love them will get a Southwest card to track my points and keep flying with them. My family and I were pleased with the services.

It was canceled. Supposedly weather. But there was no snow in Baltimore. At least we found out before driving to airport

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

The seats were comfortable, and the boarding process was pretty smooth.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Flight was fine other than there was a gate change that I was not notified of. By chance I happened to check my phone and saw the change, otherwise, we would have missed our connecting flight.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Everything you need to know for your flight from Baltimore to Portland

Information on your arrival and departure airports