$153 Cheap Flights from Boise (BOI) to Baltimore (BWI)

View $153 flight on Sat, Feb 7, 2026Opens in a new window

Popular airlines from Boise Airport (BOI) to Baltimore Washington Intl. Airport (BWI)

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Cheap Flights from Boise to Baltimore (BOI-BWI)

Prices were available within the past 7 days and start at $153 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Nov 24 - Thu, Nov 27
BOI
Boise
BWI
Baltimore
$289 Roundtrip, found 3 days ago
$289
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Nov 24 from Boise to Baltimore, returning Thu, Nov 27, priced at $289 found 3 days ago
Delta
Tue, Feb 17 - Tue, Feb 24
BOI
Boise
BWI
Baltimore
$294 Roundtrip, found 9 hours ago
$294
Roundtrip
found 9 hours ago
Select Delta flight, departing Tue, Feb 17 from Boise to Baltimore, returning Tue, Feb 24, priced at $294 found 9 hours ago
American Airlines
Tue, Feb 10 - Tue, Feb 17
BOI
Boise
BWI
Baltimore
$300 Roundtrip, found 5 days ago
$300
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Feb 10 from Boise to Baltimore, returning Tue, Feb 17, priced at $300 found 5 days ago
Southwest Airlines
Sat, Feb 21 - Sat, Feb 28
BOI
Boise
BWI
Baltimore
$303 Roundtrip, found 6 days ago
$303
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Sat, Feb 21 from Boise to Baltimore, returning Sat, Feb 28, priced at $303 found 6 days ago
United
Tue, Feb 10 - Tue, Feb 17
BOI
Boise
BWI
Baltimore
$303 Roundtrip, found 5 days ago
$303
Roundtrip
found 5 days ago
Select United flight, departing Tue, Feb 10 from Boise to Baltimore, returning Tue, Feb 17, priced at $303 found 5 days ago
Southwest Airlines
Sat, Feb 21 - Sat, Feb 28
BOI
Boise
BWI
Baltimore
$306 Roundtrip, found 6 days ago
$306
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Sat, Feb 21 from Boise to Baltimore, returning Sat, Feb 28, priced at $306 found 6 days ago
American Airlines
Sat, Dec 13 - Tue, Dec 16
BOI
Boise
BWI
Baltimore
$307 Roundtrip, found 2 days ago
$307
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Dec 13 from Boise to Baltimore, returning Tue, Dec 16, priced at $307 found 2 days ago
Southwest Airlines
Sat, Feb 21 - Sat, Feb 28
BOI
Boise
BWI
Baltimore
$308 Roundtrip, found 6 days ago
$308
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Sat, Feb 21 from Boise to Baltimore, returning Sat, Feb 28, priced at $308 found 6 days ago
United
Tue, Feb 10 - Tue, Feb 17
BOI
Boise
BWI
Baltimore
$311 Roundtrip, found 5 days ago
$311
Roundtrip
found 5 days ago
Select United flight, departing Tue, Feb 10 from Boise to Baltimore, returning Tue, Feb 17, priced at $311 found 5 days ago
Southwest Airlines
Sat, Dec 13 - Tue, Dec 16
BOI
Boise
BWI
Baltimore
$312 Roundtrip, found 2 days ago
$312
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Sat, Dec 13 from Boise to Baltimore, returning Tue, Dec 16, priced at $312 found 2 days ago

Find the cheapest month to fly from Boise (BOI) to Baltimore (BWI)

September is typically the cheapest month to fly

From $189 - $456 per traveler.

Alternative airports near Baltimore

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest option available. Average driving time to city center is 57 minutes. Flights from $508
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city center57 min
Flights from $508

Frequently asked questions

How much does a flight from Boise Airport (BOI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Grab a cheap one-way flight from $153 or cheap return flight from $289 from Boise Airport (BOI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Boise Airport (BOI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The cheapest month to fly from BOI to BWI is November, when there's less demand. Off-peak months are often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Boise Airport (BOI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from BOI to BWI. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Boise Airport (BOI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
You'll need to catch a flight with a layover when traveling from Boise Airport (BOI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from BOI to BWI?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change based on various factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Opt for a flight from Boise Airport (BOI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) that takes off before 3 PM to reduce the likelihood of delays. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Boise Airport (BOI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Holding off until just before your trip to book your flight from BOI to BWI often results in higher prices. While you might find some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule to maximize your chances of getting a bargain.
Is it cheaper to book a BOI to BWI flight and hotel package?
Securing a BOI to BWI flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our wide range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you booked your BOI to BWI flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Boise
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$288
Distance
2053 mi

Book with confidence

Boise to Baltimore Flights

The cheapest times to fly from Boise to Baltimore

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boise to Baltimore are during the month of November. You can find some of the cheapest flights from Boise to Baltimore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Baltimore

Sunday is one of the best days to book for cheap flights from Boise to Baltimore: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boise to Baltimore

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boise to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $153 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boise to Baltimore flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boise to Baltimore airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boise to Baltimore Flights

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*Available to One Key members.