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$106+ Cheap flights from Idaho to Baltimore (BWI)

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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BWI
Aug 27 — Sep 31
Wed 8/27
Wed 9/3
1 adult, Economy
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Cheap flight deals from Idaho to Baltimore

Keep the following information in mind while searching for Idaho to Baltimore flight deals. Data was last updated August 22, 2025.

Round-trip from

$198
(Orbitz)

One-way from

$106
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$342
From Idaho to Baltimore/Washington
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One-way flight from Idaho to Baltimore/Washington
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Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Idaho to Baltimore

Cheapest flights from Idaho to Baltimore
Explore the most affordable flight options available from Idaho to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2025.

This Orbitz deal was found by Cheapflights users on 8/20. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/202:16 pmBOI - BWI
1 stop12h 14mSpirit Airlines
Mon 9/298:16 amBWI - BOI
1 stop14h 15mSpirit Airlines
Deal found 8/20$198
This FlightHub deal was found by Cheapflights users on 8/21. 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.
Thu 9/182:16 pmBOI - BWI
1 stop12h 14mSpirit Airlines
Wed 9/247:02 pmBWI - BOI
1 stop20h 19mSpirit Airlines
Deal found 8/21$200
This FlightHub deal was found by Cheapflights users on 8/20. 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.
Thu 9/182:16 pmBOI - BWI
1 stop12h 14mSpirit Airlines
Thu 9/257:02 pmBWI - BOI
1 stop27h 29mSpirit Airlines
Deal found 8/20$216
This FlightHub deal was found by Cheapflights users on 8/21. 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.
Thu 10/22:16 pmBOI - BWI
1 stop12h 14mSpirit Airlines
Wed 10/156:26 pmBWI - BOI
1 stop21h 04mSpirit Airlines
Deal found 8/21$219
This FlightHub deal was found by Cheapflights users on 8/20. 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.
Sat 9/202:16 pmBOI - BWI
1 stop12h 14mSpirit Airlines
Sun 9/287:02 pmBWI - BOI
1 stop27h 29mSpirit Airlines
Deal found 8/20$228
This FlightHub deal was found by Cheapflights users on 8/20. 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.
Fri 9/199:26 pmBOI - BWI
1 stop29h 04mSpirit Airlines
Mon 9/298:16 amBWI - BOI
1 stop14h 15mSpirit Airlines
Deal found 8/20$231
This FlightHub deal was found by Cheapflights users on 8/21. 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.
Fri 9/199:26 pmBOI - BWI
1 stop29h 04mSpirit Airlines
Sun 9/287:02 pmBWI - BOI
1 stop27h 29mSpirit Airlines
Deal found 8/21$235
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 12/166:00 pmBOI - BWI
1 stop9h 40mAlaska Airlines
Tue 1/67:04 amBWI - BOI
1 stop10h 19mAlaska Airlines
Deal found 8/19$250
This Mytrip deal was found by Cheapflights users on 8/19. 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.
Thu 9/49:06 pmGEG - BWI
1 stop17h 51mMultiple Airlines
Wed 9/1011:02 amBWI - GEG
3 stops36h 14mMultiple Airlines
Deal found 8/19$271
This Delta deal was found by Cheapflights users on 8/20. 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.
Tue 9/96:38 pmGEG - BWI
1 stop8h 22mDelta
Tue 9/167:06 pmBWI - GEG
1 stop7h 52mDelta
Deal found 8/20$277
This Mytrip deal was found by Cheapflights users on 8/20. 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.
Thu 9/49:06 pmGEG - BWI
1 stop17h 51mMultiple Airlines
Thu 9/115:45 amBWI - GEG
2 stops17h 31mMultiple Airlines
Deal found 8/20$278
This Delta deal was found by Cheapflights users on 8/20. 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.
Tue 9/96:38 pmGEG - BWI
1 stop8h 22mDelta
Wed 9/177:15 amBWI - GEG
2 stops10h 34mDelta
Deal found 8/20$292

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Baltimore 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 August 22, 2025.
Use the filters below to find and compare flights from Idaho to Baltimore that are best for you.

Fly from

Idaho

Fly to

Baltimore

Route

Depart

Return

Price

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Sat 9/20

2:16 pm-4:30 am

1 stop12h 14m

Baltimore/Washington

Mon 9/29

8:16 am-8:31 pm

1 stop14h 15m

$198

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 9/18

2:16 pm-4:30 am

1 stop12h 14m

Baltimore/Washington

Thu 9/25

7:02 pm-8:31 pm

1 stop27h 29m

$200

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 9/18

2:16 pm-4:30 am

1 stop12h 14m

Baltimore/Washington

Wed 9/24

7:02 pm-1:21 pm

1 stop20h 19m

$200

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Sat 9/20

2:16 pm-4:30 am

1 stop12h 14m

Baltimore/Washington

Sun 9/28

7:02 pm-8:31 pm

1 stop27h 29m

$212

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 10/2

2:16 pm-4:30 am

1 stop12h 14m

Baltimore/Washington

Wed 10/15

6:26 pm-1:30 pm

1 stop21h 04m

$219

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Fri 9/19

9:26 pm-4:30 am

1 stop29h 04m

Baltimore/Washington

Mon 9/29

8:16 am-8:31 pm

1 stop14h 15m

$231

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Fri 9/19

9:26 pm-4:30 am

1 stop29h 04m

Baltimore/Washington

Sun 9/28

7:02 pm-8:31 pm

1 stop27h 29m

$235

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 9/4

9:06 pm-5:57 pm

1 stop17h 51m

Baltimore/Washington

Wed 9/10

11:02 am-8:16 pm

3 stops36h 14m

$271

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Tue 9/9

6:38 pm-6:00 am

1 stop8h 22m

Baltimore/Washington

Tue 9/16

7:06 pm-11:58 pm

1 stop7h 52m

$277

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Tue 9/9

6:38 pm-6:00 am

1 stop8h 22m

Baltimore/Washington

Wed 9/17

7:15 am-11:55 am

1 stop7h 40m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 58 results
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Best time to book a flight from Idaho to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from Idaho 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 Idaho to Baltimore

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

Currently, August is the cheapest month in which you can book a flight from Idaho to Baltimore (average of $241). Flying from Idaho to Baltimore in March is currently the most expensive (average of $290). 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 ID to BWI?

Find hourly flight availability from Idaho to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 22, 2025.

When flying from Idaho to Baltimore, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

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

  • What airport do you fly into for flights to Baltimore from Idaho?

    Most people fly into Baltimore/Washington (BWI) if they book a flight to Baltimore from Idaho. Baltimore/Washington is conveniently located just 8.5 mi from Baltimore’s city center.

  • How long is the flight from Idaho to Baltimore?

    For as low as $277, Spirit Airlines can have you in Baltimore from Idaho in 8h 22m. Airlines will cover a distance of 2105 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $106. However, be on the lookout for offers from Alaska Airlines and Delta, as they are both options that can get you from Idaho to Baltimore for a low price.

  • What are the most popular routes from Idaho to Baltimore?

    The most popular route from Idaho to Baltimore is Spokane - Baltimore/Washington. You may also consider Boise Air Term. Gowen Fld - Baltimore/Washington or Jackson Hole - Baltimore/Washington.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Baltimore 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 Idaho to Baltimore?

    Currently, August is the cheapest month in which you can book a flight from Idaho to Baltimore (average of $241). Flying from Idaho to Baltimore in March is currently the most expensive (average of $290). 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

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Alternative routes for Idaho to Baltimore

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Top 4 airlines flying from Idaho to Baltimore

Discover the top 4 airlines that operate flights from Idaho to Baltimore. 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 August 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$292Average$459FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$300Average$445FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$305Average$565FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$352Average$458FlexibilityNo cancel feeOn-time63%

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