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$104+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
2月 26 — 3月 51
週三 2/26
週三 3/5
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 2月 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$209
(Mytrip)

One-way from

$104
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$351
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. 6% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in February 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 2月 21, 2025.

This Mytrip deal was found by Cheapflights users on 2/20. 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.
週二 4/110:42 amBWI - BOI
2 stops27h 54mSpirit Airlines
週三 4/162:34 pmBOI - BWI
1 stop13h 12mSpirit Airlines
Deal found 2/20$209
This Delta deal was found by Cheapflights users on 2/20. 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.
週二 4/16:00 amBWI - BOI
1 stop8h 46mDelta
週三 4/163:25 pmBOI - BWI
1 stop6h 34mDelta
Deal found 2/20$231
This Delta deal was found by Cheapflights users on 2/20. 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.
週四 4/176:00 amBWI - GEG
2 stops10h 05mDelta
週二 4/226:59 pmGEG - BWI
1 stop7h 51mDelta
Deal found 2/20$312
This Southwest deal was found by Cheapflights users on 2/20. 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.
週四 3/69:25 amBWI - GEG
1 stop10h 45mSouthwest
週二 3/111:15 pmGEG - BWI
1 stop8h 55mSouthwest
Deal found 2/20$317
This American Airlines deal was found by Cheapflights users on 2/20. 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.
週日 3/306:03 amBWI - BOI
1 stop8h 43mAmerican Airlines
週三 4/21:36 pmBOI - BWI
2 stops8h 22mAmerican Airlines
Deal found 2/20$319
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
週四 5/17:05 pmBWI - GEG
1 stop7h 54mAlaska Airlines
週一 5/57:27 pmGEG - BWI
1 stop7h 19mAlaska Airlines
Deal found 2/19$336
This United Airlines deal was found by Cheapflights users on 2/20. 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.
週五 3/74:00 pmBWI - BOI
1 stop7h 29mUnited Airlines
週二 3/112:30 pmBOI - BWI
1 stop6h 57mUnited Airlines
Deal found 2/20$343
This United Airlines deal was found by Cheapflights users on 2/19. 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.
週一 3/174:00 pmBWI - GEG
1 stop7h 53mUnited Airlines
週三 3/195:00 amGEG - BWI
1 stop7h 02mUnited Airlines
Deal found 2/19$349
This Delta deal was found by Cheapflights users on 2/20. 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.
週二 4/227:05 amBWI - IDA
1 stop7h 21mDelta
週二 4/296:55 pmIDA - BWI
1 stop8h 55mDelta
Deal found 2/20$367
This Southwest deal was found by Cheapflights users on 2/20. 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.
週四 4/108:20 amBWI - BOI
2 stops10h 05mSouthwest
週日 4/131:55 pmBOI - BWI
2 stops8h 15mSouthwest
Deal found 2/20$367
This Travelocity deal was found by Cheapflights users on 2/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週二 3/410:28 amBWI - BOI
1 stop10h 18mMultiple Airlines
週二 3/256:37 amBOI - BWI
1 stop9h 26mMultiple Airlines
Deal found 2/20$376
This American Airlines deal was found by Cheapflights users on 2/20. 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.
週二 4/225:00 amBWI - IDA
2 stops9h 29mAmerican Airlines
週二 4/297:43 amIDA - BWI
2 stops12h 36mAmerican Airlines
Deal found 2/20$377

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 2月 21, 2025.

Fly from

Baltimore

Fly to

Idaho

Route

Depart

Return

Price

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

週二 4/1

10:42 am-12:36 pm

2 stops27h 54m

Boise Air Term. Gowen Fld

週三 4/16

2:34 pm-5:46 am

1 stop13h 12m

$209

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

週二 4/1

6:00 am-12:46 pm

1 stop8h 46m

Boise Air Term. Gowen Fld

週三 4/16

3:25 pm-11:59 pm

1 stop6h 34m

$231

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

週四 4/17

6:00 am-1:05 pm

2 stops10h 05m

Spokane

週二 4/22

6:59 pm-5:50 am

1 stop7h 51m

$312

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

週四 3/6

9:25 am-5:10 pm

1 stop10h 45m

Spokane

週一 3/10

5:55 pm-5:30 am

1 stop8h 35m

$317

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

週日 3/30

6:03 am-12:46 pm

1 stop8h 43m

Boise Air Term. Gowen Fld

週三 4/2

1:36 pm-11:58 pm

2 stops8h 22m

$319

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

週五 3/7

4:00 pm-9:29 pm

1 stop7h 29m

Boise Air Term. Gowen Fld

週二 3/11

2:30 pm-11:27 pm

1 stop6h 57m

$343

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

週四 4/10

8:20 am-4:25 pm

2 stops10h 05m

Boise Air Term. Gowen Fld

週日 4/13

1:55 pm-12:10 am

2 stops8h 15m

$367

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

週二 4/22

7:05 am-12:26 pm

1 stop7h 21m

Idaho Falls Fanning Field

週二 4/29

6:55 pm-5:50 am

1 stop8h 55m

$367

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

週二 3/4

10:28 am-6:46 pm

1 stop10h 18m

Boise Air Term. Gowen Fld

週二 3/25

6:37 am-6:03 pm

1 stop9h 26m

$376

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

週二 4/22

5:00 am-12:29 pm

2 stops9h 29m

Idaho Falls Fanning Field

週二 4/29

7:43 am-10:19 pm

2 stops12h 36m

$377

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 42 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 2月 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 2月 21, 2025.
Read through reviews of airlines operating flights from Baltimore to Idaho, such as Southwest, Alaska Airlines and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,401 reviews
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 $104. Users have also found prices from $116 and $149 on American Airlines and Delta, 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 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 2月 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$229Average$328FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$334Average$683FlexibilityNo cancel feeOn-time71%
DeltaCheapest$336Average$493FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$347Average$486FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$406Average$681FlexibilityNo cancel feeOn-time69%
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