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Idaho

$120+ Cheap flights from Baltimore (BWI) to Idaho

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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Baltimore to Idaho

Keep the following information in mind while searching for Baltimore to Idaho flight deals. Data was last updated April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$271
(Alaska Airlines)

One-way from

$120
(Booking.com)

Popular in

December

Cheapest in

April

Average price

$321
Provider with most accurate pricing for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flights.
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From Baltimore/Washington to Idaho
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One-way flight from Baltimore/Washington to Idaho
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Highest demand for flights based on searches. 13% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Baltimore to Idaho

Cheapest flights from Baltimore to Idaho
Explore the most affordable flight options available from Baltimore to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/16. 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.
Wed 4/307:06 amBWI - GEG
1 stop8h 25mAlaska Airlines
Wed 5/77:00 amGEG - BWI
1 stop8h 05mAlaska Airlines
Deal found 4/16$271
This Delta deal was found by Cheapflights users on 4/17. 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 5/176:55 amBWI - BOI
1 stop6h 59mDelta
Tue 5/277:18 pmBOI - BWI
1 stop8h 22mDelta
Deal found 4/17$287
This Delta deal was found by Cheapflights users on 4/15. 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 5/316:15 amBWI - GEG
1 stop9h 32mDelta
Sat 6/145:10 pmGEG - BWI
1 stop9h 37mDelta
Deal found 4/15$297
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/286:40 amBWI - GEG
2 stops11h 07mUnited Airlines
Sat 5/313:29 pmGEG - BWI
2 stops10h 51mUnited Airlines
Deal found 4/16$307
This Booking.com deal was found by Cheapflights users on 4/15. 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.
Thu 7/1012:25 pmBWI - GEG
1 stop8h 22mSun Country Air
Sun 7/135:11 pmGEG - BWI
1 stop15h 18mSun Country Air
Deal found 4/15$315
This Southwest deal was found by Cheapflights users on 4/15. 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.
Tue 8/122:20 pmBWI - GEG
2 stops10h 55mSouthwest
Tue 8/196:15 amGEG - BWI
1 stop10h 30mSouthwest
Deal found 4/15$325
This Mytrip deal was found by Cheapflights users on 4/17. 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 5/111:12 amBWI - BOI
2 stops27h 45mSpirit Airlines
Mon 5/51:52 pmBOI - BWI
2 stops26h 01mSpirit Airlines
Deal found 4/17$350
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Tue 5/138:23 amBWI - WYS
1 stop6h 49mUnited Airlines
Fri 5/161:51 pmWYS - BWI
1 stop7h 26mUnited Airlines
Deal found 4/16$354
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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.
Thu 10/167:30 amBWI - BOI
1 stop10h 50mAlaska Airlines
Mon 10/208:30 pmBOI - BWI
1 stop7h 15mAlaska Airlines
Deal found 4/17$361
This Sun Country Air deal was found by Cheapflights users on 4/17. 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.
Sun 6/2212:25 pmBWI - BOI
1 stop8h 43mSun Country Air
Thu 6/267:08 pmBOI - BWI
1 stop14h 21mSun Country Air
Deal found 4/17$365
This Hawaiian Airlines deal was found by Cheapflights users on 4/16. 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.
Sat 10/186:55 pmBWI - GEG
1 stop8h 04mHawaiian Airlines
Sat 10/257:20 pmGEG - BWI
1 stop7h 25mHawaiian Airlines
Deal found 4/16$366
This Expedia deal was found by Cheapflights users on 4/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/127:06 amBWI - BOI
1 stop8h 41mMultiple Airlines
Fri 5/1612:16 pmBOI - BWI
1 stop15h 54mMultiple Airlines
Deal found 4/17$383

Cheapflights Fare Finder

Customize your flight search to find flights from Baltimore to Idaho 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 April 17, 2025.
Use the filters below to find and compare flights from Baltimore to Idaho that are best for you.

Fly from

Baltimore

Fly to

Idaho

Route

Depart

Return

Price

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Wed 4/30

7:06 am-12:31 pm

1 stop8h 25m

Spokane

Sat 5/10

5:40 pm-5:46 am

1 stop9h 06m

$271

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 5/17

6:55 am-11:54 am

1 stop6h 59m

Boise Air Term. Gowen Fld

Tue 5/27

7:18 pm-5:40 am

1 stop8h 22m

$287

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Sat 5/31

6:15 am-12:47 pm

1 stop9h 32m

Spokane

Sat 6/14

5:10 pm-5:47 am

1 stop9h 37m

$297

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Wed 5/28

6:40 am-2:47 pm

2 stops11h 07m

Spokane

Sat 5/31

3:29 pm-5:20 am

2 stops10h 51m

$307

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Thu 7/10

12:25 pm-5:47 pm

1 stop8h 22m

Spokane

Sun 7/13

5:11 pm-11:29 am

1 stop15h 18m

$315

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Thu 5/1

11:12 am-12:57 pm

2 stops27h 45m

Boise Air Term. Gowen Fld

Mon 5/5

1:52 pm-5:53 pm

2 stops26h 01m

$350

BaltimoreWest Yellowstone

BWI - WYS

BWIWYS

Baltimore/Washington

Tue 5/13

8:23 am-1:12 pm

1 stop6h 49m

West Yellowstone

Fri 5/16

1:51 pm-11:17 pm

1 stop7h 26m

$354

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Tue 6/24

6:25 am-1:55 pm

2 stops10h 30m

Spokane

Tue 7/1

1:25 pm-1:55 am

1 stop9h 30m

$356

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sun 6/22

12:25 pm-7:08 pm

1 stop8h 43m

Boise Air Term. Gowen Fld

Thu 6/26

7:08 pm-11:29 am

1 stop14h 21m

$365

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

Sat 5/17

6:55 am-12:11 pm

1 stop7h 16m

Idaho Falls Fanning Field

Sat 5/24

12:55 pm-11:36 pm

1 stop8h 41m

$381

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 49 results
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Best time to book a flight from Baltimore to Idaho

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

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

Currently, October is the cheapest month in which you can book a flight from Baltimore to Idaho (average of $314). Flying from Baltimore to Idaho in June is currently the most expensive (average of $419). 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 ID?

Find hourly flight availability from Baltimore to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Baltimore to Idaho as you normally would.

Rainfall in Idaho by month

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

In terms of precipitation, rainfall in Idaho 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 Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

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

If weather is an important factor for your trip to Idaho, 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 Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated April 17, 2025.
Read through reviews of airlines operating flights from Baltimore to Idaho, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Idaho. 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 from for flights from Baltimore to Idaho?

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

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $120. Users have also found prices from $144 and $163 on Delta and Sun Country Air, respectively.

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

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

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Baltimore to Idaho (average of $314). Flying from Baltimore to Idaho in June is currently the most expensive (average of $419). 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 Baltimore to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Baltimore to Idaho

Discover the top 5 airlines that operate flights from Baltimore to Idaho. 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$180Average$294FlexibilityNo cancel feeOn-time65%
DeltaCheapest$230Average$492FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$670FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$334Average$618FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$347Average$484FlexibilityNo cancel feeOn-time63%

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