Portland to Baltimore PWM → BWI
Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI)
The cheapest return found recently is $456 with Southwest Airlines, 24 Nov – 28 Nov, found 2 days ago. The cheapest one-way found recently is $218 with Southwest Airlines, 24 Nov, found 2 days ago.
Return
The cheapest return fare on each of 4 departure dates is usually $500 to $694.
Cheapest return found recently
$456
24 Nov – 28 Nov · Southwest Airlines
Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI)
Leaves 5:25 a.m. · Return leaves 7:55 a.m. · 3 h 25 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Cheapest nonstop return
$456
24 Nov – 28 Nov · Southwest Airlines
Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI)
Leaves 5:25 a.m. · Return leaves 7:55 a.m. · 3 h 25 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$456 24 Nov – 28 Novfound 2 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 3 days, 16 Oct to 18 Oct, the cheapest return we saw each day was $456 to $498.
At $456, the cheapest return found recently is at the low end of that range.
3 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 24 Nov to 23 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 4-night return fares leaving within 3 days of 24 Nov to compare.
Every date we hold
5 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 24 Nov – 28 Nov | $456 | Southwest Airlines | Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 28 Nov – 28 Nov | $694 | Southwest Airlines | Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 29 Nov – 29 Nov | $694 | Southwest Airlines | Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 23 Dec – 27 Dec | $514 | Southwest Airlines | Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $456.
Airlines on the cheapest dates: Southwest Airlines.
One-way
The cheapest one-way fare on each of 3 departure dates is usually $279 to $340.
Cheapest one-way found recently
$218
24 Nov · Southwest Airlines
Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI)
Leaves 5:25 a.m. · 1 h 55 min trip
nonstop
found 2 days ago
Cheapest nonstop one-way
$218
24 Nov · Southwest Airlines
Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI)
Leaves 5:25 a.m. · 1 h 55 min trip
nonstop
found 2 days ago
Found recently, and the cheapest we hold
$218 24 Novfound 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 2 days, 17 Oct to 18 Oct, the cheapest one-way we saw each day was $218.
At $218, the cheapest one-way found recently costs the same.
2 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 24 Nov to 29 Nov, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 24 Nov to compare.
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 24 Nov | $218 | Southwest Airlines | Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | nonstop | found 2 days ago | Open this trip |
| 28 Nov | $340 | Southwest Airlines | Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | nonstop | found 3 days ago | Open this trip |
| 29 Nov | $340 | Southwest Airlines | Portland International Jetport (PWM) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | nonstop | found 2 days ago | Open this trip |
Airlines on the cheapest dates: Southwest Airlines.
Premium cabin fares from Portland to Baltimore
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 24 Nov – 28 Nov in another cabin: Premium economy · Business · First
Today's prices for 24 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Portland to Baltimore?
Return
Not enough history yet: we have 3 days of return prices, 16 Oct to 18 Oct, and compare booking times once 3 booking ranges have 7 days each.
One-way
Not enough history yet: we have 2 days of one-way prices, 17 Oct to 18 Oct, and compare booking times once 3 booking ranges have 7 days each.
Live price for these dates
The cheapest return found recently is for 24 Nov – 28 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work