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$105+ Cheap flights from Baltimore to Boise (BWI - BOI)

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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Baltimore/Washington to Boise Air Term. Gowen Fld are usually found in September or April, booked 11 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Baltimore to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Boise (BOI). 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 July 29, 2025.

Round-trip from

$201
(Cheapflightsfares)

One-way from

$105
(Cheapflightsfares)

Popular in

November

Cheapest in

September

Average price

$459
From Baltimore/Washington to Boise Air Term. Gowen Fld
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One-way flight from Baltimore/Washington to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 16% potential increase in price ($92 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Baltimore to Boise

Cheapest flights from Baltimore to Boise
Explore the most affordable flight options available from Baltimore to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/186:30 amBWI - BOI
1 stop12h 41mSpirit Airlines
Thu 8/216:06 pmBOI - BWI
1 stop9h 09mSpirit Airlines
Deal found 7/28$201
This Hawaiian Airlines deal was found by Cheapflights users on 7/27. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/267:00 amBWI - BOI
1 stop10h 54mHawaiian Airlines
Tue 9/27:17 pmBOI - BWI
1 stop8h 22mHawaiian Airlines
Deal found 7/27$286
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/307:22 pmBWI - BOI
1 stop16h 06mAlaska Airlines
Tue 9/211:22 amBOI - BWI
1 stop16h 17mAlaska Airlines
Deal found 7/27$287
This Delta deal was found by Cheapflights users on 7/27. 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.
Sat 8/306:00 amBWI - BOI
2 stops10h 01mDelta
Wed 9/35:30 amBOI - BWI
1 stop5h 57mDelta
Deal found 7/27$292
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/215:39 pmBWI - BOI
2 stops28h 42mMultiple Airlines
Sun 9/282:16 pmBOI - BWI
1 stop12h 14mMultiple Airlines
Deal found 7/28$298
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/274:20 pmBWI - BOI
1 stop6h 54mUnited Airlines
Sun 8/312:45 pmBOI - BWI
2 stops12h 36mUnited Airlines
Deal found 7/27$317

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Boise 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 July 29, 2025.
Use the filters below to find and compare flights from Baltimore to Boise that are best for you.

Fly from

Baltimore

Fly to

Boise

Route

Depart

Return

Price

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Mon 8/18

6:30 am-5:11 pm

1 stop12h 41m

Boise Air Term. Gowen Fld

Thu 8/21

6:06 pm-5:15 am

1 stop9h 09m

$201

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 8/26

7:00 am-3:54 pm

1 stop10h 54m

Boise Air Term. Gowen Fld

Tue 9/2

7:17 pm-5:39 am

1 stop8h 22m

$286

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 8/30

2:30 pm-10:10 pm

1 stop9h 40m

Boise Air Term. Gowen Fld

Tue 9/2

6:05 pm-5:10 am

1 stop9h 05m

$287

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 8/30

6:00 am-2:01 pm

2 stops10h 01m

Boise Air Term. Gowen Fld

Wed 9/3

5:30 am-1:27 pm

1 stop5h 57m

$292

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sun 9/21

5:39 pm-8:21 pm

2 stops28h 42m

Boise Air Term. Gowen Fld

Sun 9/28

2:16 pm-4:30 am

1 stop12h 14m

$298

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Thu 8/28

8:09 am-5:11 pm

1 stop11h 02m

$105

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 8/19

1:38 pm-9:43 pm

1 stop10h 05m

$144

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Thu 10/9

6:05 pm-12:20 am

1 stop8h 15m

$209

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Fri 10/10

6:12 pm-7:20 am

2 stops15h 08m

$262

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Fri 8/15

6:15 am-3:55 pm

2 stops11h 40m

$264

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Baltimore to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Baltimore with our price prediction graph.
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 Boise

How far ahead should I book a flight from Baltimore to Boise?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to Boise. Price data was last updated on July 25, 2025.

Booking 11 days in advance of your planned departure date is, on average, the best time to get cheap flights from Baltimore to Boise. 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 Boise?

Currently, October is the cheapest month in which you can book a flight from Baltimore to Boise (average of $314). Flying from Baltimore to Boise in June is currently the most expensive (average of $398). 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 BOI?

Find hourly flight availability from Baltimore to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

A simple way to save on the total cost of your ticket is to fly from Baltimore to Boise at noon. If you’re flexible enough to do this you can expect to save up to 55% on your trip compared to booking a flight in the evening.

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated July 29, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Baltimore to Boise to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,979 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,605 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Baltimore to Boise round-trip?

    Spirit Airlines, at $201, was found to be the cheapest airline from Baltimore to Boise.Alternate airlines to your destination round-trip include Hawaiian Airlines and Southwest. Spirit Airlines is currently priced 57% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Baltimore to Boise one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $105. Users have also found prices from $144 and $209 on American Airlines and Southwest, respectively.

  • Can I find deals for flights from Baltimore to Boise that include hotel bookings?

    Yes. In addition to deals on Baltimore to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Boise?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Boise.

  • Can I find deals for business class flights from Baltimore to Boise?

    Yes. Cheapflights offers flight deals from Baltimore to Boise by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to Boise?

    Currently, October is the cheapest month in which you can book a flight from Baltimore to Boise (average of $314). Flying from Baltimore to Boise in June is currently the most expensive (average of $398). 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.

See more FAQs

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Meridian
Nampa
Ontario
McCall
Caldwell

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Top 3 airlines flying from Baltimore to Boise

Discover the top 3 airlines that operate flights from Baltimore to Boise. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$230Average$408FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$278Average$562FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$347Average$486FlexibilityNo cancel feeOn-time63%

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