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$153+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Baltimore to Idaho

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Idaho (USID). 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 January 21, 2025.

Round-trip from

$179
(Cheapflightsfares)

One-way from

$169
(Delta)
From Baltimore/Washington to Idaho
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One-way flight from Baltimore/Washington to Idaho
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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 January 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 1/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2510:28 amBWI - BOI
1 stop10h 18mSpirit Airlines
Thu 2/277:41 pmBOI - BWI
1 stop7h 37mSpirit Airlines
Deal found 1/19$179
This Mytrip deal was found by Cheapflights users on 1/20. 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.
Sat 2/16:10 amBWI - BOI
2 stops29h 39mMultiple Airlines
Fri 2/77:38 pmBOI - BWI
3 stops23h 11mMultiple Airlines
Deal found 1/20$281
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/106:00 amBWI - BOI
1 stop8h 28mDelta
Tue 2/255:30 amBOI - BWI
1 stop6h 34mDelta
Deal found 1/21$301
This Delta deal was found by Cheapflights users on 1/20. 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.
Mon 2/36:00 amBWI - GEG
1 stop9h 00mDelta
Thu 2/61:15 pmGEG - BWI
1 stop7h 17mDelta
Deal found 1/20$307
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/410:05 amBWI - GEG
2 stops13h 48mUnited Airlines
Sat 2/81:50 pmGEG - BWI
1 stop6h 54mUnited Airlines
Deal found 1/20$312
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/34:10 pmBWI - BOI
1 stop7h 32mUnited Airlines
Sat 5/107:10 pmBOI - BWI
1 stop10h 07mUnited Airlines
Deal found 1/20$343
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/37:20 amBWI - IDA
1 stop9h 30mDelta
Sat 5/107:00 pmIDA - BWI
1 stop9h 03mDelta
Deal found 1/19$347
This Delta deal was found by Cheapflights users on 1/20. 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.
Sat 3/17:15 amBWI - SUN
1 stop9h 55mDelta
Tue 3/41:00 pmSUN - BWI
1 stop8h 32mDelta
Deal found 1/20$347
This Delta deal was found by Cheapflights users on 1/20. 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.
Wed 2/197:15 amBWI - JAC
1 stop7h 00mDelta
Wed 2/261:10 pmJAC - BWI
1 stop8h 22mDelta
Deal found 1/20$347
This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/126:03 amBWI - BOI
1 stop8h 34mAmerican Airlines
Wed 2/261:23 pmBOI - BWI
1 stop7h 36mAmerican Airlines
Deal found 1/21$358
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/237:06 amBWI - GEG
1 stop8h 25mAlaska Airlines
Sun 4/275:49 pmGEG - BWI
1 stop8h 57mAlaska Airlines
Deal found 1/20$373
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/156:03 amBWI - JAC
1 stop8h 10mAmerican Airlines
Wed 4/1612:53 pmJAC - BWI
1 stop7h 44mAmerican Airlines
Deal found 1/20$373

Find flights from Baltimore to Idaho within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 2/25

10:28 am-6:46 pm

1 stop10h 18m

Boise Air Term. Gowen Fld

Thu 2/27

7:41 pm-5:18 am

1 stop7h 37m

$179

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 2/1

6:10 am-9:49 am

2 stops29h 39m

Boise Air Term. Gowen Fld

Fri 2/7

7:38 pm-8:49 pm

3 stops23h 11m

$281

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 3/1

8:30 am-2:05 pm

1 stop7h 35m

Boise Air Term. Gowen Fld

Thu 3/6

3:00 pm-11:53 pm

1 stop6h 53m

$301

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Mon 2/3

7:15 am-12:00 pm

1 stop7h 45m

Spokane

Fri 2/7

1:15 pm-11:32 pm

1 stop7h 17m

$307

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Tue 2/4

10:05 am-8:53 pm

2 stops13h 48m

Spokane

Sat 2/8

1:50 pm-11:44 pm

1 stop6h 54m

$312

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 5/3

4:10 pm-9:42 pm

1 stop7h 32m

Boise Air Term. Gowen Fld

Sat 5/10

7:10 pm-7:17 am

1 stop10h 07m

$343

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

Sat 5/3

7:20 am-2:50 pm

1 stop9h 30m

Idaho Falls Fanning Field

Sat 5/10

7:00 pm-6:03 am

1 stop9h 03m

$347

BaltimoreHailey

BWI - SUN

BWISUN

Baltimore/Washington

Sat 3/1

7:15 am-3:10 pm

1 stop9h 55m

Hailey Sun Valley-Friedman

Tue 3/4

1:00 pm-11:32 pm

1 stop8h 32m

$347

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Wed 2/19

7:15 am-12:15 pm

1 stop7h 00m

Jackson Hole

Wed 2/26

1:10 pm-11:32 pm

1 stop8h 22m

$347

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Thu 2/6

3:19 pm-9:52 pm

1 stop8h 33m

Boise Air Term. Gowen Fld

Mon 2/10

1:28 pm-11:27 pm

1 stop7h 59m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 43 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.

Travel insights for flights from Baltimore to Idaho

Get recent, data-driven insights about flights from Baltimore to Idaho including ideal travel times, pricing trends, and more.

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 $436). 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 January 21, 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 January 21, 2025.
Read through reviews of airlines operating flights from Baltimore to Idaho, such as American Airlines, Delta and Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Food

7.2

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Food

7.2

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,696 reviews
Southwest
8.1
Very good
4,659 reviews

Food

7.2

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Food

7.2

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,659 reviews

Food

7.2

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Food

7.2

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 Delta. According to our data, you can fly for as low as $169. Users have also found prices from $175 and $188 on Alaska Airlines 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 $436). 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 4 airlines flying from Baltimore to Idaho

Discover the top 4 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$229Average$327FlexibilityNo cancel feeOn-time65%
DeltaCheapest$317Average$574FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$366Average$543FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$381Average$680FlexibilityNo cancel feeOn-time69%
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