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$144+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$287
(Alaska Airlines)

One-way from

$144
(United Airlines)

Popular in

November

Cheapest in

September

Average price

$525
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. 14% potential increase in price ($83 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 June 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 June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 9/97:00 amBWI - BOI
1 stop10h 00mAlaska Airlines
Tue 9/164:34 pmBOI - BWI
1 stop10h 59mAlaska Airlines
Deal found 6/10$287
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/158:00 amBWI - BOI
1 stop14h 44mSpirit Airlines
Fri 9/199:49 pmBOI - BWI
1 stop24h 21mSpirit Airlines
Deal found 6/11$291
This Delta deal was found by Cheapflights users on 6/10. 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 8/276:00 amBWI - BOI
2 stops10h 01mDelta
Sun 8/3112:45 pmBOI - BWI
1 stop9h 11mDelta
Deal found 6/10$292
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 9/226:15 amBWI - BOI
1 stop7h 16mUnited Airlines
Wed 9/247:09 pmBOI - BWI
2 stops10h 57mUnited Airlines
Deal found 6/10$297
This Sun Country Air deal was found by Cheapflights users on 6/11. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/710:49 amBWI - BOI
1 stop9h 19mSun Country Air
Sun 8/105:50 pmBOI - BWI
1 stop15h 33mSun Country Air
Deal found 6/11$325
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 10/127:55 amBWI - BOI
1 stop9h 50mHawaiian Airlines
Wed 10/156:30 amBOI - BWI
1 stop8h 42mHawaiian Airlines
Deal found 6/10$326
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Sun 7/2712:25 pmBWI - BOI
1 stop7h 31mMultiple Airlines
Fri 8/87:48 pmBOI - BWI
1 stop8h 17mMultiple Airlines
Deal found 6/10$329
This Southwest deal was found by Cheapflights users on 6/11. 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 8/46:20 amBWI - BOI
1 stop8h 15mSouthwest
Thu 8/75:45 amBOI - BWI
1 stop7h 05mSouthwest
Deal found 6/11$337
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/116:00 amBWI - BOI
1 stop8h 46mAmerican Airlines
Sat 7/1911:44 amBOI - BWI
1 stop9h 33mAmerican Airlines
Deal found 6/10$448
This Booking.com deal was found by Cheapflights users on 6/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/255:20 pmBWI - BOI
1 stop20h 27mFrontier
Sun 6/2912:36 pmBOI - BWI
1 stop25h 49mFrontier
Deal found 6/10$455

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 June 12, 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

Tue 9/9

7:00 am-3:00 pm

1 stop10h 00m

Boise Air Term. Gowen Fld

Tue 9/16

4:34 pm-5:33 am

1 stop10h 59m

$287

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Mon 9/15

8:00 am-8:44 pm

1 stop14h 44m

Boise Air Term. Gowen Fld

Fri 9/19

9:49 pm-12:10 am

1 stop24h 21m

$291

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 8/27

6:00 am-2:01 pm

2 stops10h 01m

Boise Air Term. Gowen Fld

Sun 8/31

12:45 pm-11:56 pm

1 stop9h 11m

$292

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Mon 9/22

6:15 am-11:31 am

1 stop7h 16m

Boise Air Term. Gowen Fld

Wed 9/24

7:09 pm-8:06 am

2 stops10h 57m

$297

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Thu 8/7

10:49 am-6:08 pm

1 stop9h 19m

Boise Air Term. Gowen Fld

Sun 8/10

5:50 pm-11:23 am

1 stop15h 33m

$325

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sun 10/12

7:55 am-3:45 pm

1 stop9h 50m

Boise Air Term. Gowen Fld

Wed 10/15

6:30 am-5:12 pm

1 stop8h 42m

$326

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sun 7/27

12:25 pm-5:56 pm

1 stop7h 31m

Boise Air Term. Gowen Fld

Fri 8/8

7:48 pm-6:05 am

1 stop8h 17m

$329

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Mon 8/4

6:20 am-12:35 pm

1 stop8h 15m

Boise Air Term. Gowen Fld

Thu 8/7

5:45 am-2:50 pm

1 stop7h 05m

$337

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Fri 7/11

6:00 am-12:46 pm

1 stop8h 46m

Boise Air Term. Gowen Fld

Sat 7/19

11:44 am-11:17 pm

1 stop9h 33m

$448

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 6/25

5:20 pm-11:47 am

1 stop20h 27m

Boise Air Term. Gowen Fld

Sun 6/29

12:36 pm-4:25 pm

1 stop25h 49m

$455

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 19 results
1
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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 June 9, 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 $395). 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 June 12, 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.

Rainfall in Boise by month

Plan your trip to Boise by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

Temperature in Boise by month

Plan your trip to Boise by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boise, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Baltimore to Boise, such as Alaska Airlines, Southwest and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    Alaska Airlines, at $287, was found to be the cheapest airline from Baltimore to Boise.Alternate airlines to your destination round-trip include Spirit Airlines and Delta. Alaska Airlines is currently priced 40% 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 United Airlines. According to our data, you can fly for as low as $144. Users have also found prices from $153 and $179 on Sun Country Air and American Airlines, 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 $395). 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 Baltimore?

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

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See prices for flight routes from nearby airports that may be better suited for you.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$230Average$434FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$278Average$572FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$347Average$488FlexibilityNo cancel feeOn-time63%

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