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$126+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Dec 26 — Jan 21
Thu 12/26
Thu 1/2
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 December 21, 2024.

Round-trip from

$235
(Cheapflightsfares)

One-way from

$126
(Gotogate)
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 December 21, 2024.

This Delta deal was found by Cheapflights users on 12/21. 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.
Wed 12/2512:30 pmBWI - LWS
2 stops11h 23mDelta
Mon 1/67:00 amLWS - BWI
2 stops13h 57mDelta
Deal found 12/21$453
This Delta deal was found by Cheapflights users on 12/20. 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 12/316:40 amBWI - BOI
1 stop7h 40mDelta
Wed 1/15:32 amBOI - BWI
1 stop6h 34mDelta
Deal found 12/20$518
This United deal was found by Cheapflights users on 12/21. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/259:50 amBWI - LWS
1 stop10h 24mUnited Airlines
Mon 1/65:15 amLWS - BWI
1 stop6h 50mUnited Airlines
Deal found 12/21$628
This American Airlines deal was found by Cheapflights users on 12/20. 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.
Fri 12/277:00 pmBWI - GEG
1 stop8h 39mAmerican Airlines
Wed 1/15:30 amGEG - BWI
1 stop9h 40mAmerican Airlines
Deal found 12/20$690
This United Airlines deal was found by Cheapflights users on 12/20. 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 12/286:35 amBWI - GEG
1 stop9h 15mUnited Airlines
Fri 1/36:25 pmGEG - BWI
1 stop7h 35mUnited Airlines
Deal found 12/20$742
This United Airlines deal was found by Cheapflights users on 12/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/289:50 amBWI - IDA
1 stop9h 10mUnited Airlines
Sat 1/112:28 pmIDA - BWI
1 stop7h 16mUnited Airlines
Deal found 12/21$750
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:00 amBWI - BOI
1 stop9h 54mAlaska Airlines
Tue 12/316:38 pmBOI - BWI
1 stop8h 52mAlaska Airlines
Deal found 12/21$762
This Delta deal was found by Cheapflights users on 12/20. 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.
Fri 12/276:02 amBWI - GEG
2 stops13h 38mDelta
Wed 1/15:15 pmGEG - BWI
1 stop9h 32mDelta
Deal found 12/20$777
This Southwest deal was found by Cheapflights users on 12/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/294:00 pmBWI - GEG
1 stop10h 15mSouthwest
Fri 1/33:35 pmGEG - BWI
1 stop6h 30mSouthwest
Deal found 12/20$791
This Southwest deal was found by Cheapflights users on 12/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:25 amBWI - BOI
2 stops11h 05mSouthwest
Tue 12/3111:55 amBOI - BWI
1 stop10h 30mSouthwest
Deal found 12/21$802
This United deal was found by Cheapflights users on 12/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/296:20 amBWI - JAC
2 stops12h 49mUnited Airlines
Sun 1/56:05 pmJAC - BWI
1 stop8h 55mUnited Airlines
Deal found 12/20$803
This United Airlines deal was found by Cheapflights users on 12/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:05 amBWI - SUN
1 stop9h 43mUnited Airlines
Mon 1/62:31 pmSUN - BWI
1 stop6h 57mUnited Airlines
Deal found 12/19$809

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 December 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Fri 1/24

10:37 am-6:43 pm

1 stop10h 06m

Boise Air Term. Gowen Fld

Sun 1/26

7:38 pm-5:00 am

1 stop7h 22m

$235

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Wed 1/15

7:15 am-12:00 pm

1 stop7h 45m

Spokane

Wed 1/22

2:10 pm-11:54 pm

1 stop6h 44m

$278

BaltimoreLewiston

BWI - LWS

BWILWS

Baltimore/Washington

Wed 2/19

7:15 am-11:55 am

1 stop7h 40m

Lewiston Nez Perce Rgnl

Wed 2/26

12:35 pm-11:32 pm

1 stop7h 57m

$298

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 2/5

8:15 am-6:38 pm

2 stops12h 23m

Boise Air Term. Gowen Fld

Sat 2/8

3:00 pm-11:53 pm

1 stop6h 53m

$326

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 2/5

6:59 pm-9:57 am

1 stop16h 58m

Boise Air Term. Gowen Fld

Sat 2/8

6:20 pm-5:59 pm

1 stop21h 39m

$328

BaltimoreHailey

BWI - SUN

BWISUN

Baltimore/Washington

Sat 1/25

7:15 am-2:55 pm

1 stop9h 40m

Hailey Sun Valley-Friedman

Wed 1/29

3:35 pm-11:34 pm

1 stop5h 59m

$334

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Sat 3/1

8:30 am-2:28 pm

1 stop7h 58m

Jackson Hole

Wed 3/5

1:10 pm-11:32 pm

1 stop8h 22m

$334

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Thu 4/24

6:55 pm-11:59 pm

1 stop8h 04m

Spokane

Mon 4/28

7:20 pm-5:45 am

1 stop7h 25m

$358

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Thu 6/19

12:25 pm-5:56 pm

1 stop7h 31m

Boise Air Term. Gowen Fld

Sun 6/29

6:55 pm-11:23 am

1 stop14h 28m

$365

BaltimoreHailey

BWI - SUN

BWISUN

Baltimore/Washington

Sat 3/1

6:56 pm-9:37 am

1 stop16h 41m

Hailey Sun Valley-Friedman

Thu 3/6

7:04 pm-5:56 pm

1 stop20h 52m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 44 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 December 21, 2024.

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 December 21, 2024.
Read through reviews of airlines operating flights from Baltimore to Idaho, such as Southwest, American Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,814 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

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
4,814 reviews
Southwest
8.1
Very good
4,814 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

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
9,537 reviews
Southwest
8.1
Very good
4,814 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

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
8,597 reviews
Southwest
8.1
Very good
4,814 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

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
9,039 reviews
Southwest
8.1
Very good
4,814 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

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
4,814 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

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 Spirit Airlines. According to our data, you can fly for as low as $126. Users have also found prices from $139 and $209 on Delta and Alaska Airlines, 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 - Spokane or Baltimore/Washington - Boise Air Term. Gowen Fld.

  • 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 December 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$224Average$327FlexibilityNo cancel feeOn-time65%
DeltaCheapest$316Average$489FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$362Average$551FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$402Average$639FlexibilityNo cancel feeOn-time69%
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